text:
|N�mero de publicaci�n
|Tipo de publicaci�n
|N�mero de solicitud
|Fecha de publicaci�n
|27 Oct 1998
|Fecha de presentaci�n
|1 Mar 1996
|Fecha de prioridad
|6 Mar 1995
|N�mero de publicaci�n
|Bobby W. Sandage, Jr., Marc Fisher, Kenneth W. Locke
|Cesionario original
|Interneuron Pharmaceuticals, Inc.
|Exportar cita
|BiBTeX, EndNote, RefMan
|Citas de patentes (1), Otras citas (134), Citada por (18), Clasificaciones (7), Eventos legales (9)
|Enlaces externos: USPTO, Cesi�n de USPTO, Espacenet
The present application is a continuation-in-part of U.S. application Ser. No. 08/603,102, filed Feb. 20, 1996, which, in turn, is a continuation-in-part of U.S. application Ser. No. 08/399,262, filed Mar. 6, 1995, now abandoned, the entire disclosures of both of which are incorporated by references herein.
The present invention relates to a method of reducing the extent of infarction, particularly cerebral infarction, subsequent to an ischemic event. Reduction of the infarct volume, possibly coupled with facilitated repair of any damaged tissue, may, in turn, maximize the potential for recovery following loss of critical blood flow, such as the condition that may follow a stroke. More particularly, the invention relates to the use of citicoline (cytidine-5'-diphosphocholine or CDP-choline) in a novel treatment regimen to reduce cerebral infarct volume and improve the chances for complete or substantial recovery.
The brain, more than any other organ in the body, depends, for its survival and proper functioning, on a relatively constant supply of oxygenated blood. While comprising only 2% of the body's weight, the brain receives 15% of the heart's output of blood and consumes 20% of the oxygen used by the body. In addition, a constant supply of blood is required to provide the brain with glucose, the major energy substrate used by the brain to produce high energy phosphates such as ATP.
Ischemia may be defined as the loss of blood flow to a tissue. Cerebral ischemia is the interruption or reduction of blood flow in the arteries feeding the brain, usually as a result of a blood clot (thrombus) or other matter (embolus) occluding the artery. Loss of blood flow to a particular vascular region is known as focal ischemia; loss of blood flow to the entire brain, global ischemia.
Once deprived of blood--and, hence, oxygen and glucose--brain tissue may undergo ischemic necrosis or infarction. The metabolic events thought to underlie such cell degeneration and death include: energy failure through ATP depletion; cellular acidosis; glutamate release; calcium ion influx; stimulation of membrane phospholipid degradation and subsequent free-fatty-acid accumulation; and free radical generation.
Knowledge of these underlying events has led investigators studying certain types of ischemic injury to utilize agents such as calcium channel blockers, glutamate and glycine antagonists, CDP-amines, free radical scavengers/antioxidants, perfluorocarbons and thrombolytic agents to improve cerebral blood flow and/or neurological outcome, all with mixed results. Indeed, some vasodilators may improve blood flow and, thus, may find use as anti-ischemic agents. None, however, has been shown to reduce infarct volume, particularly in patients that have suffered an ischemic stroke. Conversely, although certain calcium-channel blockers have been reported to decrease infarct size, these drugs also have been reported to produce inconsistent results and undesirable side effects, such as reduction in pulse or perfusion pressure. See, e.g., Kaste, M. et al. Stroke (1994) 25:1348-1353.
More particularly, glutamate antagonists have been observed to reduce infarct size under certain experimental conditions. See, e.g., Olney, J. W. et al. Science (1991) 254:1515-1518. However, most, if not all, of these compounds cause brain vacuolization and most produce phencyclidine-like subjective effects in animals and humans. Ingestion of phencyclidine has been associated with euphoria, anxiety, mood lability and prolonged psychosis.
Free radical scavengers/antioxidants are a heterogenous group of compounds. In general, the effects of these compounds on infarct volume have been inconsistent. For example, superoxide dismutase inhibitors have been found to reduce infarct volume only when injected intracerebroventricularly. See, Kinouchi, H. et al. Proc. Natl. Acad. Sci. USA (1991) 88:11158-11162. Other compounds, such as lubeluzole, have been shown to have clinical benefit but with a very narrow margin of safety. See, Diener, H. C. et al. Stroke (1995) 26:30.
Although perfluorocarbons have shown some benefit in the outcome from ischemic stroke, these compounds have an extremely long half-life and must be infused into the brain and spinal fluid. In addition, these compounds have been observed to cause gonadal hypertrophy. See, Bell, R. D. et al. Stroke (1991) 22:80-83!.
Thrombolytic agents, such as t-PA (tissue plasminogen activator), streptokinase, and urokinase, have shown some promise in the treatment of ischemia. However, these agents have the propensity to increase intracranial bleeding, which, ultimately, can lead to increased mortality. See, e.g., del Zoppo, G. J. et al. Seminars in Neurology (1991) 11(4) :368-384; The Ancrod Stroke Study Investigators, Stroke (1994) 25:1755-1759; Hacke, W. et al. Stroke (1995) 26:167. Moreover, the efficacy of these agents may be limited to treatment within the first three hours of stroke.
Citicoline monosodium is an exogenous form of cytidine-5'-diphosphocholine (CDP-choline). Endogenous CDP-Choline is a key intermediate in the biosynthesis of membrane phosphatidyl choline, which is of primary importance for the dynamic regulation of cellular integrity. The role of phospholipids in the maintenance of neuronal function is critically important in conditions where ischemia can induce the breakdown of these membranes.
Citicoline has been extensively studied in clinical trials. Results of these trials indicated an improvement in a variety of clinical symptoms, including headache, vertigo, motor coordination and insomnia. These trials also showed improvements in motor function and reduction in stroke sequelae. However, such trials were limited to the use of citicoline during the rehabilitation stage of patients who may have suffered a stroke, and, thus, such treatments occurred well after the putative ischemic event. Nevertheless, such trials showed that stroke and head trauma patients tolerated citicoline well at dose ranges of 250 mg/day to 1000 mg/day for several weeks.
The inventors believe that the full potential therapeutic effects of citicoline, which may be related to membrane stabilization through enhanced phospholipid synthesis in ischemic brain, have not been realized in prior studies because such studies involved the administration of citicoline well after the onset of ischemia, typically only during the treatment efforts to foster recovery of the patient. Furthermore, such prior treatments may not have proceeded for sufficiently long enough periods.
Stroke is a severe, potentially catastrophic disease affecting approximately 500,000 people per year in the U.S. Clinicians have had to rely on supportive measures and non-specific agents, such as steroids and mannitol, to reduce brain swelling. As 25 to 50% of stroke victims become disabled, there exists a need for improved methods of treating these patients.
Although intravenous thrombolytic therapy has shown some promise if administered within three hours of a stroke, it is believed that an oral drug treatment that would be initiated within a 24-hour post-stroke window and which would positively affect neurological outcome three months after a stroke could become an important new weapon in the fight against this disease.
The invention relates to a method for reducing infarct volume, particularly cerebral infarct volume, subsequent to an ischemic event, e.g., cerebral ischemia, caused by any of a number of disorders, such as ischemic stroke, comprising administering an effective amount of citicoline or a pharmaceutically-acceptable salt thereof. Such disorders include, but are not limited to, thromboembolic or hemorrhagic stroke, cerebral vasospasm, hypoglycemia, cardiac arrest, and status epilepticus, and also may include schizophrenia, epilepsy, neurodegenerative disorders, Alzheimer's disease, and Huntington's disease.
The present invention also relates to the use of citicoline for the preparation of a pharmaceutical medicament for the reduction of infarct volume, particularly the size of a cerebral infarct, comprising admixing an effective amount of citicoline with a pharmaceutically acceptable carrier.
In the method of reducing infarct volume or size, administration of an effective amount of citicoline must take place within a short time following the ischemic episode, preferably within a 24-hour window. Subsequent administrations of citicoline should then follow over a specified period, typically over at least about a one week (ca. 5-10 days, but preferably at least about 7 days), most preferably over at least about a few weeks to several weeks (e.g., 3-8 weeks, preferably at least about 6 weeks). The dosage regimen can vary within certain limits. Typically, about 100-2000 mg of citicoline can be administered one or more times per day, preferably once a day for the duration of the treatment period. Preferred single daily dosage includes about 500-1000 mg of citicoline, most preferably, about 500 mg. Again, however, this single dose may be administered more than once a day, e.g., twice a day, if desired.
Citicoline may be expected to have a number of advantages over other agents being developed for the reduction of infarct volume subsequent to an ischemic event. Being an endogenous compound, citicoline is inherently safe. Citicoline has a very low toxicity and an extremely broad therapeutic index.
The potential multimodal action of citicoline also may prove advantageous. Although the relative contribution of each potential mode of action to the reduction of infarct size is unknown, citicoline and its hydrolysis products--cytidine and choline--are believed to play important roles in the generation of phospholipids involved in membrane formation and repair. These compounds also are believed to contribute to critical metabolic functions, such as the formation of nucleic acids and proteins, and the synthesis of the neurotransmitter acetylcholine. See, Ulus, I. H. et al. Brain Research (1989) 484:217-227. Thus, under ischemic conditions, citicoline may function to (1) stabilize membranes by providing substrate for membrane maintenance; (2) repair damaged membranes by supplying important substrates for membrane formation; and (3) restore neuronal function by supplying substrate for the formation of acetylcholine. Moreover, unlike other, proposed therapeutic agents, citicoline has the potential not only to reduce initial infarct size, but also to contribute to the repair of the damaged area.
It is, therefore, one object of the invention to provide methods for improving the recovery of victims of stroke and head trauma. Hence, it is another object of the invention to administer citicoline to patients very soon after the onset of ischemia, preferably within 24 hours following the ischemic event. Most preferably, the first dose of citicoline is administered within about twelve hours to about fifteen hours of the ischemic event.
Yet another object of the invention is to provide methods for decreasing infarct volume in patients who have suffered injury, e.g., through an ischemic stroke or head trauma or any conditions that may lead to loss of blood flow in the affected organ or tissue.
These and other objects if the invention will be apparent to those of ordinary skill in view of the discussion above and the additional detailed description provided below relating to preferred embodiments of the invention.
FIG. 1 depicts bar graphs of infarct volume in animal groups receiving vehicle control, 100 mg/kg citicoline, and 500 mg/kg citicoline. Values are mean�standard deviation (SD)
The present invention comprises a method for reducing infarct volume comprising the steps of administering citicoline, or a pharmaceutically acceptable salt thereof, in from one to four doses daily, at about 100 mg to 2000 mg per dose, beginning very soon after an ischemic event and continuing for at least up to about a week (e.g., seven days) to several weeks, preferably 4-8 weeks, more preferably 5-8 weeks, most preferably for at least about 6 weeks.
Without being limited by theory, it is believed that citicoline has at least a dual mechanism of action: limiting the brain damage caused by injuries such as stroke or severe head trauma and aiding in the repair of damaged neuronal tissues.
Administration of citicoline is believed to limit the extent of the infarct, or tissue damage, by preventing the accumulation of toxic free fatty acids. In addition, following its administration, it is believed that citicoline is broken down into two components, cytidine and choline, which are substrates required in the formation of nerve cell membranes. It is further postulated that to normalize brain function, nerve cells damaged by stroke must manufacture new membrane elements. As described below, in preclinical animal models of stroke, administration of citicoline is shown to significantly reduce infarct size. This result is confirmed in humans by the clinical investigation described further below in which a select group of patients undergoing early intervention by citicoline treatment is examined by magnetic resonance imaging techniques.
The present invention is directed to a new and important use of citicoline--the reduction of infarct size subsequent to cerebral ischemia. Although stabilization of membranes is believed to be of benefit in ischemic conditions, it has not been definitively demonstrated that membrane stabilization will lead to reduced infarct volume. The present inventors have unexpectedly found that administration of citicoline for just seven (7) days, significantly reduces infarct volume, presumably by altering phosphatidylcholine synthesis and membrane formation.
The cerebroprotective action of citicoline was demonstrated, in one case, in a model of temporary forebrain ischemia in the rat in which the middle cerebral artery (MCA) is occluded by suture. Treatment with 500 mg/kg of citicoline significantly reduced the mean volume of infarction compared with controls.
Citicoline is generally preferred to be administered orally as a pharmaceutically acceptable salt. The preferred salt is the monosodium salt of citicoline, as this form is readily available in pharmaceutically acceptable purity.
As mentioned above, treatment under the invention is preferably begun within at least about 24 hours from onset, preferably within about 12-15 hours of onset, most preferably begun as soon as possible after the initial ischemic episode. In a specific embodiment of the invention, treatment is continued for at least up to about 7 days, preferably at least up to about 14 days, most preferably at least up to about 30 days from the start of treatment.
Hence, according to one embodiment of the invention, a method is disclosed of reducing infarct volume in a patient who has experienced an ischemic event comprising administering a first dose of an effective amount of citicoline or a pharmaceutically acceptable salt thereof shortly after but no later than about 24 hours after the occurrence of the ischemic event, followed by the administration of subsequent doses of effective amounts of citicoline or a pharmaceutically acceptable salt thereof over a period of at least about a week. Preferably, the first dose is administered within about 12 to about 15 hours after the occurrence of the ischemic event and that the first dose is followed by subsequent doses of citicoline or a pharmaceutically acceptable salt thereof over a period of at least about 7 days, preferably 14 days, most preferably 30 days.
The preferred dose of about 500 to about 1000 mg of citicoline or its pharmaceutically acceptable salt may be administered one or more times daily, preferably once or twice a day.
The method of the present invention finds its most advantageous use in human patients who have experienced an ischemic event that has occurred in the brain, typically from a cerebral ischemia, head trauma, or the like. It cannot be stressed enough, however, that the administration of the first dose of an effective amount of citicoline or its pharmaceutically acceptable salt should transpire as soon as possible after the ischemic event but no more than about 24 hours after such occurrence.
A variety of dosage ranges are suitable. The citicoline dosage under the invention may be from about 100 mg to about 1000 mg from one to about 4 times per day. For example, when a single daily dose is desired, citicoline is administered in from about 100 to about 4000 mg per day, preferably from about 500 to about 2000 mg per day. In one embodiment of the invention, the dose is 1000 mg per day.
For medical use, the amount required of citicoline, or a pharmacologically-acceptable salt thereof ("the active ingredient") to achieve a therapeutic effect will vary with the route of administration and the particular disorder or disease to be treated. A suitable systemic dose of the active ingredient, for a mammal suffering from, or likely to suffer from, any of the conditions described herein, is in the range of 100 mg to 4000 mg per day, with a preferred dose of 1000 mg per day, administered 500 mg twice daily. A dose of 1000 mg citicoline per day will produce a plasma choline concentration of 1.5 ng/ml, the same as that produced by the administration of 500 mg/kg/day citicoline to the rat, as further described in the Examples. It is has been shown, however, that 500 mg per day conveys most of the benefits of citicoline treatment while minimizing any side effects, including dizziness, which may be experienced by some patients.
In the trial, two hundred fifty-nine patients with ischemic stroke were enrolled within 24 hours following the onset of symptoms. Patients were randomly assigned to receive placebo or one of three oral doses of citicoline (500 milligrams, 1000 milligrams or 2000 milligrams daily) for six weeks and were monitored for an additional six weeks. The primary efficacy outcome scale was improved neurologic function at 12 weeks after stroke, as assessed by the Barthel Index.
Patients who received 500 milligrams or 2000 milligrams of citicoline daily exhibited significantly greater (p<0.05) improvement on the Barthel Index at week 12 than placebo-treated patients. Efficacy outcome measures for the 1000 milligram daily group did not reach statistical significance, although demographic imbalances and confounding variables among patients in this group may ultimately explain this finding.
In addition, global neurologic status, assessed by another well-known measurement, the Rankin Scale, was significantly improved (p<0.04) with citicoline treatment compared to placebo.
The Barthel Index utilizes a 100-point rating scale. Scores of 95 or greater are indicative of complete or near-complete recovery from stroke. Overall, 336 of placebo-treated patients achieved a score of greater than 95 at 12 weeks after stroke, compared to 53% of patients who received 500 milligrams daily of citicoline (p<0.04).
Another outcome scale, the NIH Stroke Scale, showed that 34% of citicoline-treated patients versus 16 of placebo-treated patients achieved complete or near-complete normalization of function, as indicated by scores less than or equal to 1, at 12 weeks following stroke (p<0.04).
There was no significant difference in the incidence of death among the four treatment groups. Preliminary analysis of adverse events and laboratory findings revealed that all doses of citicoline were well tolerated. The only statistically significant differences among citicoline-treated patients versus placebo-treated patients were an increase in dizziness and accidental injuries, e.g., falling down. However, the 500 milligram dose citicoline group did not significantly differ from the placebo group in these parameters.
Given the degree of effectiveness of the 500 milligram daily dose and the absence of significant differences in adverse events between this dosage level and placebo, 500 milligrams daily appears to be the optimal dose derived from this study.
While it is possible for the active ingredient to be administered alone, it may be preferable to present the active ingredient as a formulation.
Formulations of the active ingredient, suitable for oral administration, may be in the form of discrete units, such as capsules, cachets, tablets, or lozenges; in the form of a powder or granules for reconstitution; in the form of a solution or a suspension in an aqueous liquid or nonaqueous liquid; or, in the form of an oil-in-water emulsion or a water-in-oil emulsion. The active ingredient also may be in the form of a bolus, electuary, or paste.
Formulations of the active ingredient, suitable for parenteral administration, may comprise a sterile, aqueous preparation of the active ingredient. The formulations may be presented in unit dosage form and may be prepared by any of the methods well-known in the art of pharmacology.
In addition to containing the standard and well known pharmaceutical carriers and/or excipients, all of the above formulations may contain other therapeutically-active substances. Thus, the present invention also contemplates a combination treatment regimen that relates to the co-administration of citicoline and at least a second therapeutic agent, or the respective pharmaceutically acceptable salts thereof.
Broad categories of the at least a second therapeutic agent are contemplated. These agents include, but are not limited to, antiplatelet drugs (e.g., Alboaggregin A, BB-2113, BN-50726, BN-50739, `Corsevin M`, C68-22, Integrelin, KB-3022, Linotroban, Platelet factor 4, Staurosporine, S-1452, Ticlopidine, TP-9201 and the like), anticoagulants (e.g., Alpha-1 antitrypsin, Antithrombin III, Antithrombin polypeptides, Argatroban, Coagulation factor Xa, CTC-110, CTC-111 and other protein C products, CX-397, Dalteparin, Danaproid sodium, Enoxaparin, Factor XIIa inhibitor, Fraxiparine, Heparin, Hirudin, Hirugen, Hoe-023, HV-1, ITF-300 and ITF-1300, Monoclonal antibodies, ONO-3307, Oversulfated LMW heparin, Raviparin sodium, rTAP, R-020, SC-597, Thrombomodulin, TMD1-105 and the like), thrombolytic and related agents (e.g., Kabi-2161, Kunitz protease inhibitor, Plasminogen activator, Plasminogen activator inhibitor, Tissue plasminogen activator and the like), anti-ischemic agents and "neuroprotectives" (e.g., inhibitors of the actions of excitatory, amino acids, ACEA-1021, ACPC, Aptiganel, BW-619C, CNS-1145, CNS-1505, CPC-71 and CPC-702, Dextrorphan and dextromethorphan, Eliprodil, ES-242-1, FPL-15896, FR-115427, GP-1-4688, L-687414, L-689560, L-695902, LY-104658, LY-235959, LY-274614, LY-293558, Memantine, NNC-07-9202, NS-257, NPC 17742, "Protara", Remacemide, Riluzole, SDZ EAA 494, Selfotel, SYM-1010, SYM-1207, YM-90K, MK-801 and the like).
Yet other therapeutic agents useful in combination with citicoline are calcium channel blockers (e.g., AJ-394, AK-275, Calpain inhibitors, CD-349, Clentiaze, CNS-1237, CNS-2103, CPC-304 and CPC-317, Dazodipine, Diperdinine, Emopamil, Fasudil, Lacidipine, Lifarizine, Lomerizine, Magnesium, MDL:28170, NB-818, Nilvadipine, Nimodipine, NS-626 and related compounds, SM-6586, SNX-111, S-312-d, U-92032, UK-74505, US-035 and the like), agents targeted at nitric oxide, agents targeted at various other, neurotransmitters (e.g., alpha2 -receptor therapeutics, CV-5197, Dopamine receptors, Enadoline, Lazabemide, Milnacipran, Nalmefene, RP-60180, SR-57746A, Synaptic uptake blockers and the like), cytokines, hormones and related products (e.g., AN-100225 and AN-100226, Brain-derived neurotrophic factor, Calcitonin gene-related peptides, CEP-075 and related compounds, Ciliary neurotrophic factor, Endothelial cell factor, Endothelin inhibitors, FR-139317 Interleukin-1 receptor antagonist (lipocortin), JTP-2942, Macrophage-regulating compounds, Motoneuronetrophic factor NBI-117, Nerve growth factor, Neural stem cells, Neutrophil inhibitory factor, NS-506, NT-3, Posatirelin, Schwann cell promoters, sCR1, Somatomedin-1 and the like), free radical scavengers (e.g., EPC-K1, MCI-186, Nicaraven, Phenazoviridin, Resorstatin, Rumbrin, Superoxide dismutase, Tirilazad mesylate, U-88999E, Yissum project P-0619, YM-737 and the like), gangliosides and related products (e.g., LIGA4, LIGA4, Monosialoganglioside (GM1), ND-37, Siagoside and the like).
Still other classes of a second therapeutic agent, include, but are not limited to, modulators of various specific enzymes (e.g., CEP-217, CEP-245, CEP-392, CNS-1531, Ebselen, Epalrestat, JTP-4819, K-7259, Protease nexin-1, SK-827, Tyrosine kinase modulators, Z-321 and the like), memory enhancers or "nootropics" (e.g., Aloracetam, Choline-L-alfoscerate, DN-2574, Idebenone, Oxiracetam, Piracetam, Pramiracetam, Tacrine and its analogues, Vinconate), neuroprotectives with "diverse" actions (e.g., Ademetionine sulphate tosilate, Ancrod, Apocuanzine, CPC-111, CPC-211, HSV vectors, KF-17329 and KF-19863, LY-178002, MS-153, Nicorandil, N-3393 and N-3398, SUN 4757, TJ-8007, VA-045 and the like), haemorheological agents and blood substitutes (e.g., Drotaverine acephylinate, `RheothRx` Blood substitute and the like) and imaging or contrast agents.
Therefore, a method is provided of treating a subject who has experienced an ischemic event comprising co-administering a first dose of an effective amount of citicoline and at least a second therapeutic agent, or their respective pharmaceutically acceptable salts, shortly after but, preferably, no later than about 24 hours after the occurrence of the ischemic event. The first dose may then be followed by the co-administration of one or more subsequent doses of effective amounts of citicoline alone, the at least a second therapeutic agent alone, or their respective pharmaceutically acceptable salts, or as subsequent combinations thereof. Consistent with the other methods disclosed herein, the first dose may be co-administered within about 12 to about 15 hours after the occurrence of the ischemic event. By the use of the term "co-administration," it is meant that the citicoline and the at least a second therapeutic agent, or their respective pharmaceutically acceptable salts, are administered together or in sequence.
The method using the contemplated combination therapy includes the administration or co-administration of subsequent doses, which is preferably carried out over a period of at least about 30 days. In specific embodiment of the invention, the co-administration of subsequent doses is carried out over a period of at least about 4-8 weeks, preferably over a period of at least about six months to about one year. Furthermore, the first dose or subsequent doses is co-administered one or more times daily over the predetermined period. It is anticipated that subjects who may benefit the most from the combination therapy are those who may have suffered a head trauma or a stroke. Accordingly, the combination therapy may include a second therapeutic agent, which is t-PA, streptokinase, urokinase, or even aspirin or dipyridamole.
Hence, a composition is likewise provided for the treatment of a subject who has experienced an ischemic event comprising an effective amount of citicoline and at least a second therapeutic agent, or their respective pharmaceutically acceptable salts, in a pharmaceutically acceptable carrier. In such a composition the effective amount of active ingredients may vary according to the particular need. Typical ranges, however, may be from about 100 mg to about 1000 mg of citicoline and about 10 mg to about 500 mg of at least a second therapeutic agent.
The present invention is illustrated by the Examples that follow, it being understood, however, that the invention is not limited to the specific details of these Examples.
The cerebroprotective action of citicoline was demonstrated in a model of temporary forebrain ischemia in the rat in which the middle cerebral artery (MCA) is occluded by suture. Treatment with 500 mg/kg of citicoline significantly reduced the mean volume of infarction compared with controls.
Thirty male, Sprague-Dawley rats, weighing 280-350 grams, randomly were divided into three groups of ten rats each: ten animals to be treated with 500 mg/kg citicoline; ten animals to be treated with 100 mg/kg citicoline; and ten control animals to be treated with physiological saline, the vehicle for citicoline.
All animals were anesthetized with 400 mg/kg chloral hydrate administered intraperitoneally. The left femoral artery was cannulated with PE-50 polyethylene tubing for continuous monitoring of arterial blood pressure and blood sampling for analysis of arterial blood gases. Measurements were recorded prior to surgery, one hour after ischemia, and two hours after ischemia, before reperfusion. Rectal temperature was maintained at 37� C. with a thermostatically-controlled heating lamp during the surgery and MCA occlusion.
The right MCA was occluded through a transvascular approach as previously described. See, Minematsu, K. et al. Neurology (1992) 42: 235-240; Zea Longa, E. et al. Stroke (1989) 20: 84-91. Briefly, the right common carotid artery and the right external carotid artery were exposed through a midline neck incision. The distal CCA and the external carotid artery were ligated with a 3-0 silk suture. A 4-0 monofilament nylon suture (40 mm length), whose tip had been rounded by heating near a flame and then coated with silicon (Bayer, Leverkusen, Germany), was inserted through an arteriectomy of the CCA and gently advanced into the internal carotid artery. When positioned approximately 17 mm from the carotid bifurcation, the tip of the suture occludes unilaterally the proximal anterior cerebral artery, the origins of the MCA and the posterior communicating artery. To prevent bleeding, the CCA was loosely ligated, just distal to the arteriotomy, with a 3-0 silk suture.
After 110 minutes of ischemia, the animals were treated with 500 mg/kg citicoline; with 100 mg/kg citicoline; or with 0.3 ml physiologic saline vehicle (controls), administered intraperitoneally. The MCA occluder and femoral artery catheter then were removed, after a total ischemic period of two (2) hours, permitting reperfusion of the tissue. The animals were allowed to recover from the anesthesia and to eat and drink freely. This citicoline treatment procedure was repeated for 6 additional days.
On the seventh day of treatment, the animals were reanesthetized with 400 mg/kg chloral hydrate administered intraperitoneally and then decapitated. The brains were quickly removed, inspected to confirm that no subarachnoid hemorrhage had occurred and coronally sectioned into six, 2 mm slices. The brain slices were incubated for 30 minutes in a 2% solution of 2,3,5-triphenyltetrazolium chloride (TTC) at 37� C. and fixed by immersion in a 10% buffered formalin solution. TTC stains normal brain tissue (intact cellular membrane) red; ischemic tissue, pink; and necrotic tissue, white. Six brain sections per animal were TTC-stained and photographed using a Charge Couple device camera (EDC-lOOOHR Computer Camera, Electrim Corporation, Princeton, N.J.), with the images stored on a microcomputer.
As brain edema is known to affect the measurement of infarct size, an image processing software package (Bio Scan OPTIMAS, Edmonds, Wash.) was utilized to calculate a corrected infarct volume. Corrected infarct area was calculated using the equation: corrected infarct area equals left hemisphere area minus (right hemisphere area minus infarct area). Corrected infarct volume was calculated by multiplying the corrected infarct area by slice thickness.
Five of ten animals in the control group died between 24 and 48 hours after MCA occlusion. Five of ten animals in the 100 mg/kg group died; four between 24 and 48 hours and one on the fifth day. Three of ten animals in the 500 mg/kg group died; two between 24 and 48 hours and one on the sixth day.
As depicted in FIG. 1, the mean volume of infarction in the control group was 243.5�88.6 mm3 (mean�SD) ; in the 100 mg/kg group, 200.2�19.9 mm3 ; in the 500 mg/kg group, 125.5�45.2 mm3. The difference of the mean values of infarct volume was significant for the control versus 500 mg/kg group (p<0.01, Scheffe's test). Although there was no significant difference between the control and 100 mg/kg group, there was a trend towards smaller infarction volume in the 100 mg/kg group.
Male spontaneously hypertensive rats, SHRs, weighing approximately 250-300 g, underwent reversible middle cerebral artery (MCA) and common carotid artery (CCA) occlusion of variable duration. Briefly, with the animal under chloral hydrate anesthesia (single 0.5 g/kg i.p. bolus in 1 ml of saline provided anesthesia lasting at least 2 hours), a 0.005 inch diameter stainless steel wire (Small Parts Inc. Miami, Fla.) was placed underneath the left MCA rostral to the rhinal fissure, proximal to the major bifurcation of the MCA, and distal to the lenticulostriate arteries. The artery was then lifted, and the wire rotated clockwise. The left CCA was then occluded using two atraumatic Heifetz aneurysm clips, resulting in a reduction of blood flow in the core of the infarct (4 mm dorsal to MCA occlusion) to 4-8% of the pre-ischemic baseline value throughout the entire period of ischemia, as measured by a Vasamedics Laser Flow Blood Perfusion Monitor. After a predetermined period of CCA/MCA occlusion ranging from 0-120 minutes, reperfusion was established by first removing the aneurysm clips from the CCA, and then rotating the wire counterclockwise and removing it from beneath the MCA.
Temporalis muscle temperature was maintained at 36.5��0.3� C. using a heating lamp and warming blanket. Since this study was designed to analyze motor performance, we eliminated the trauma that can be produced by femoral vessel cannulation and could interfere with behavioral performance. Therefore, blood pressure, pH, PO2 and pCO2 changes during surgery were not recorded. Brain temperature during the entire duration of ischemia and first two hours of reperfusion was maintained at 36.2��0.4� C.
CDP-choline was administered 15 min after induction of ischemia with a bolus of 0.5 g/kg i.p. in 0.5-0.6 ml of 0.9% NaCl, and subsequently daily with the same dose for 14 days. Fresh CDP-choline solution was prepared every day. Control rats were injected with saline alone instead of CDP-choline solution.
Morphometric analyses were carried out 14 days after ischemia after all behavioral testing had been completed. This allowed for direct correlations between behavioral and histologic outcome in the same animals. Fourteen days after MCA/CCA occlusion, the ischemic brain is primarily characterized by the atrophy of infarcted cortical tissue. Therefore, the amount of ischemic damage can be calculated as the difference between the volume of contra- and ipsilateral cortex.
Fourteen days after ischemia, rats were sacrificed under chloral hydrate anesthesia. The brains were cooled and sectioned into 2 mm slices. The morphometric determination of the area of ipsi- and contralateral cortex of each section was performed using a computer based Drexel University (DUMAS) image analyzer calibrated to express measurement in mm2. The volume (mm3) of cortices was calculated by summing the cortex area of sequential sections and multiplying by the interval thickness between sections. Finally, the volume of atrophy was calculated by subtracting the volume of ipsilateral cortex from the volume of contralateral cortex of the same rat. The investigator who performed the morphometrical analysis was blinded to the treatment regimen.
To assess functional outcome after ischemia the following battery of tests were used, which have been validated and standardized in this model in previous studies.
Using a rat running wheel of 12 inch diameter, and rung spacing of 2 cm, the sides of the wheel using poster board were closed, leaving a securable flap that can be opened and closed in order to place and retain the animals inside the wheel. The rats were secured inside the wheel, which itself was placed in the home cage, and then videotaped as they ran. One hundred steps taken with the forepaw contralateral to the infarcted hemisphere were observed, and the coincident number of slips of this paw between the rungs of the wheel were counted. The same observations were taken of the ipsilateral forepaw and hind limbs, and values of slips (error) per steps taken were calculated for each limb. The number of errors was then obtained by subtracting the ipsilateral errors from the contralateral ones. Each animal was tested once a day on postoperative days 4, 7, and 10.
The rats were lifted by their tails so that their ventral surface was exposed to the observer for 10 seconds. The duration of asymmetrical arm flexure was timed using a stop watch. The animals were tested once a day (two trials per day) on postoperative days 1-14.
This test for asymmetry and recovery from asymmetry was previously described and characterized in detail by Schallert and Whishaw. Briefly, Avery self-adhesive labels (1 cm diameter circles) were placed on each forepaw of the rat, in the distal-radial region of the wrist. The time required for the animal to touch and remove each label, and the order (contralateral versus ipsilateral) in which this occurred was established and used to approximate ipsilateral asymmetry. By then affixing larger labels to the wrist less preferred and correspondingly smaller labels to the other wrist, the bias could be extinguished and simultaneously quantified, dependent upon the sizes of labels required. The bigger the ratio between surface of ipsilateral vs contralateral patches (from 1:1 to 1/8:15/8) used to neutralize bias, the higher the score (from 1 to 7) that was assigned to the rat, reflecting more extensive damage. No pretraining was performed, other than extensive handling of the animals for at least 7 days prior to the surgery. Each animal was tested on postoperative days 2-3 (one trial per day).
Prior to surgery and thereafter, all animals were kept in their individual cages in an isolated room that provided a minimally stressful environment. At least two weeks of adaptation, during which animals were handled by the same investigator, who carried out all behavioral testing, was done on a daily basis (at least 10 min a day for each animal). This adaptation was introduced to reduce the stress response to touch and handling, and was crucial, especially for appropriate execution of the tape test. The investigator who performed the behavioral testing was blinded to the treatment regimen.
A behavioral abnormality score was calculated, which represented a composite of the three individual tests and used the number of errors (slips/steps; wheel), time (arm flex), or score (surface area necessary to extinguish bias; tape test), to quantitate behavioral dysfunction.
First, an average value of the performance of each rat in each test over time was calculated. Within each behavioral test, the two lowest values were averaged and subtracted from the average of the two highest values. This range was then divided into five equal quantities, and subsequently scored from 0 to 4. Next, we determined the composite score of ail 3 tests, assigning equal weight to each of them. Each rat was therefore scored on three separate tests and given a composite score of performance, for a maximum score (deficit) of 3�4=12.
The behavioral abnormality score and calculated atrophy volume (mm3) were used to obtain a correlation between duration of ischemia and behavioral abnormality score or atrophy volume in untreated and CDP-choline treated animals.
Composite score values or atrophy volumes were entered into the computer and analyzed by the curve fitting computer program ALLFIT to generate a curve describing the correlation between behavioral abnormality/atrophy volume and duration of ischemia in terms of maximal behavioral dysfunction/maximal atrophy volume (BDmax \Volmax) produced by prolonged ischemia, the time necessary to induce half maximal behavioral dysfunction/atrophy volume (BD50 \T50), as well as curve shape and steepness. The computer program (ALLFIT) employed to perform this analysis used the logistic function y=(a-d)/ 1+(xXc)b!+d, where y is the behavioral abnormality score, x is the duration of ischemia, a is the response when x=0, d is the BDmax -Volmax, b is a slope factor that determines the steepness of the curve, and c is the BD50 /T50. This program was developed for the simultaneous fitting of families of sigmoidal dose response curves, and was obtained from the Laboratory of Theoretical and Physical Biology at NIH.
The statistical difference in BD50 /T50 and BDmax -Volmax between the groups was calculated, employing log of the mean and log of the standard error of compared values provided by ALLFIT, and was assessed using Student's t-test.
Eighteen and 23 rats were analyzed in saline control and CDP-choline treated groups, respectively. CDP-choline administered for 14 days significantly (p<0.05) extended the duration of ischemia before reperfusion that produced half maximal atrophy (T50).
The T50, computed by the ALLFIT program, for control (untreated) animals was 38.3�5.9 min. and for CDP-choline treated animals was 60.5�4.3 min. CDP-choline did not, in this model, reduce maximal infarct volume; Volmax was 103.3�13.6 mm3 vs 101.6�11.4 mm3 for control and CDP-choline treated groups, respectively.
The above results suggest that CDP-choline can reduce morphological injury primarily after relatively short durations of ischemia, which produce submaximal injuries. These results also emphasize the criticality of administering citicoline shortly after the occurrence of the ischemic event, i.e., as soon as possible.
Sixteen untreated and 21 CDP-choline treated rats were analyzed. CDP-choline treatment significantly prolonged BD50, in a similar fashion to that observed in the histological analysis. BD50 in control rats was 41.9�4.6 min. while CDP-choline treatment extended BD50 by approximately 30 min. to 72.9�24.5 min.
There was no significant effect of CDP-choline treatment on BDmax ; values were 8.5�0.7 and 10.1�4.0 for control and CDP-choline treated animals, respectively.
These data indicate that chronic CDP-choline treatment provides significant improvement of both histological and functional outcome by extending T50 and BD50. CDP-choline, however, did not in this case influence Volmax and BDmax. These results suggest that the effectiveness of CDP-choline is greater in animals demonstrating submaximal ischemic injury, which in this model is produced by 30-75 min of ischemia.
Based upon review of two clinical trials and 17 trials reported in the literature, citicoline (doses ranging from 250 to 1000 mg/day) consistently appeared to be well tolerated among stroke and head trauma patients dosed from five days to eight weeks. Based upon a review of over 50 trials reported in the literature, citicoline consistently appeared to be well tolerated among other populations as well. Adverse events were generally clinically unimportant except in the cases where death ensued due to the severity of the ischemia (which is not unexpected in the populations studied). No clinically important changes have been reported in laboratory parameters, vital signs, or electrocardiograms.
This trial was designed to evaluate the effect of three doses of citicoline (500 mg, 1000 mg and 2000 mg) versus placebo in patients who had experienced an acute ischemic stroke.
If randomized before 3:00 pm, patients were given two tablets upon entry into the study and two tablets at the next mealtime for a total of four tablets on entry day. Otherwise, the patient was given two tablets (morning dose) upon entry, and the other two tablets for Day 1 (evening dose) were unused and returned. For the remainder of the study, patients were given two tablets in the morning and two tablets in the evening (See Treatment Regimen, which follows). For patients unable to ingest the study tablet whole, acceptable routes of administration include nasogastric administration or crushing tablets and mixing with food or beverage.
Study drug was administered twice daily (two tablets in the morning and two tablets in the evening) for six weeks.
The effectiveness of the various dose levels of citicoline was assessed by the Barthel Index.
The secondary efficacy assessments collected during this study include the Barthel Index at Week 12 (with a score of at least 61 considered a success), Modified Rankin Score, NIH Stroke Scale total, NIH Stroke Scale motor item, the number of days to discharge from the hospital, mortality, and other neuropsychological battery scores. The NIH Stroke Scale and Barthel Index are standard measurements of stroke symptoms and functional abilities related to daily living.
The double blind, placebo-controlled trial showed that patients who received 500 milligrams of citicoline daily were more than twice as likely to manifest minimal or no disability at 12 weeks following stroke as patients who received placebo, as measured by the NIH Stroke Scale, and 1.6 times as likely to manifest minimal or no disability as measured by the Barthel Index.
DWI detects, within minutes after onset of ischemia, regions of ischemic injury and animal models have demonstrated the utility of DWI is monitoring neuroprotective therapy. Placebo-controlled trials suggest that citicoline reduces infarct size in a rat temporary occlusion model as described above.
In this study, twelve patients were studied from a Phase III double blind placebo controlled trial of citicoline (500/1000/2000 mg daily po for 6 weeks) in acute stroke (MCA territory, less than 24 hours from onset). The design and results of the overall study are presented above. Multislice echo planar DWI and T2-weighted MRI was performed at acute and chronic time points. That is, DWI scans at baseline (i.e., between 8 and 24 hours after symptom onset, the presumed time of stroke) and at least one more image on treatment were taken. The mean time to follow up was 9.3 weeks (range 4.1-26.3 weeks; median 6.6 weeks). Lesion volumes were measured on two occasions by three observers blinded to treatment and clinical information about the patients. The percent change in the infarct volume between the baseline scan and the second scan after treatment was then determined.
Three of four placebo patients showed growth of the lesion, whereas seven of the eight patients treated with citicoline showed a reduction in lesion volume (4/5 at 500 mg; 3/3 at 2000 mg). A Chi-squared test for trend based on dose was significant at p=0.031. A Fisher's Exact test yielded a value of p=0.067. These determinations were compared to a series of historical control patients (n=31) collected in the same manner. Of the 31 patients, 22 increased infarct volume, 7 decreased infarct volume and 2 had no change. Of the 4 placebo patients in the present study, 3 increased infarct volume and 1 decreased infarct volume, exactly the proportion of the historic control. Of the 8 patients treated under the practice of the invention (5 on 500 mg qd, 3 on 2000 mg bid), 7 decreased infarct volume and 1 increased infarct volume.
The proportion of patients who decreased infarct volume under the practice of the invention was tested against the proportion in the historic control (i.e., 22/7 vs. 1/7) using Fishers Exact Test, with the difference favoring the invention being found significant (p=0.0021). As evaluated by DWI, these trials thus indicate a significant reduction of infarct volume upon treatment of the ischemia with citicoline when the treatment is initiated as early as possible after the ischemic episode and continuing for a period of up to several weeks.
Forty to sixty nonfasted male Sprague-Dawley rats weighing 280-365 g each are anesthetized with intraperitoneal chloral hydrate (400 mg/kg body weight). Chloral hydrate, 100 mg/kg is administered periodically after the initial injection to maintain the anesthetic state during the surgical procedure. The anesthetic state is only maintained for 90 min of arterial occlusion. Catheters are introduced into the inferior vena cava through the left femoral vein for drug administration. The rat's body temperature is monitored and maintained at 37� C. during the entire anesthetic period.
An intraluminal suture MCA occlusion model is used, which has been described in detail elsewhere. See, Minematsu, K. et al. Neurology (1991) 42:235-240. Briefly, an intraluminal occluder, 4-0 monofilament nylon suture with its tip rounded by flame heating is introduced through the ligated right CCA into the internal carotid artery, then gently advanced intracranially approximately 17 mm from the CCA bifurcation. The suture occludes unilaterally the proximal anterior cerebral artery, distal internal carotid artery and origins of the MCA and the posterior communicating artery.
Animals are divided into four groups: (I) NMDA antagonist treated, (ii) saline+citicoline treated, (iii) NMDA antagonist+citicoline treated and (iv) saline control groups. In 10 to 15 rats 0.5 mg/kg body weight MK-801 (an NMDA antagonist) in 1 ml/kg of physiologic saline is slowly infused intravenously 5 min after MCA occlusion. Maintenance doses of 0.5 mg/kg MK-801 are given i.p. at 8 h and 20 h after MCA occlusion. In a second group of 10 to 15 other rats, identical volumes of saline are given at the same time points as the NMDA antagonist group but accompanied by 500 mg/kg body weight citicoline given i.p. at 5 min, 8 h and 20 h after MCA occlusion. In third group of another 10 to 15 rats, the NMDA antagonist treatment regimen is repeated, except that 500 mg/kg citicoline given i.p. is also administered at 5 min, 8 h and 20 h after MCA occlusion. In a fourth and final group of 10 to 15 other rats, identical volumes of saline are given at the same time points as the NMDA antagonist group.
The animals are permitted to recover from the anesthesia and allowed to eat and drink freely. After an optional neurological evaluation, the animals are again anesthetized with 300 mg/kg of chloral hydrate given intraperitoneally and immediately decapitated. The brains are quickly removed, inspected to confirm MCA occlusion with the intraluminal suture, sectioned coronally at 2 mm intervals, stained with a 20 solution of 2,3,5-triphenyltetrazolium chloride (TTC) at 37� C. for 30 min, and fixed by immersion in a 10% buffered formalin solution. The brain sections per animal, stained with TTC, are photographed for measurement of the size of infarction. The enlarged photographs are blindly evaluated. Areas not stained red with TTC are considered as infarcted. The infarct volume (mm3) is calculated by using numerical integration of the infarct areas for all of the TTC sections per animal and the distances between them.
Standard tests are performed to assess the significance of differences in monitored physiological variables and infarct area and volumes between the groups. A two-tailed probability value less than 0.05 is considered significant.
It is found that the three groups of rats receiving some type of treatment exhibit a statistically significant reduction in infarct volume than the control group. Indeed, it is found that while the two groups of rats receiving either NMDA antagonist alone or citicoline alone exhibit a reduction in infarct volume compared to the control group, the third group of rats receiving a combination of NMDA antagonist and citicoline fares better than any of the other groups. Indeed, a surprising trend toward synergy can be shown. The third group of rats also scored better than the other groups on a neurological evaluation. Similar benefits are observed in citicoline combination regimens using other proposed therapeutic agents selected from among those described above, including, but not limited to, tissue plasminogen activator (t-PA), streptokinase and urokinase. The first dose of the combined treatment regimen may be followed by one or more subsequent doses of citicoline alone, the at least a second therapeutic agent alone, or both, as the case may be.
The invention also contemplates the co-administration of citicoline and aspirin as part of a combination therapy in which the citicoline and aspirin are administered together or sequentially shortly after the occurrence of the ischemic event. (In fact, the determination that the "event" is a non-hemorrhagic stroke--and, thus, that the stroke can be ischemic, thromboembolic, or otherwise, is sufficient to initiate the combination therapy.) The amount of aspirin and citicoline administered can vary according to the needs of the individual patient. Typically, however, about 50 to about 500 mg (preferably, about 70-300 mg) of aspirin is administered per dose, and about 100 mg to about 1000 mg (preferably, about 300-700 mg) of citicoline or its salt is administered per dose. In a preferred embodiment, a composition comprising about 70-90 mg of aspirin and about 400-600 citicoline or its salt in a pharmaceutically acceptable carrier is administered once or twice daily shortly after the occurrence of a stroke. The combination treatment regimen may continue for at least 30 days, preferably up to several weeks, more preferably a few months. Most preferably, the regimen lasts for about 6 months to a year to minimize damage to tissue, maximize recovery of the patient and lower the incidence of secondary episodes of stroke and the like.
Accordingly, a combination therapy comprising the co-administration of citicoline and at least a second therapeutic agent shortly after the occurrence of an ischemic event is contemplated by the present invention. The co-administration can be carried out at the same time or sequentially. If co-administered sequentially, it is preferable that the citicoline or its pharmaceutically acceptable salt and the at least one second therapeutic agent be administered by the first 24 hours of the occurrence of the ischemic event.
Other embodiments should be apparent to those of ordinary skill in view of the detailed disclosure provided herein, which embodiments would nonetheless fall within the scope and spirit of the present invention. For example, dipyridamole and the like may also be used in place of aspirin. Hence, the preceding preferred embodiments should not be construed as limiting the invention in any way.
|Patente citada
|Fecha de presentaci�n
|Fecha de publicaci�n
|18 Sep 1981
|31 May 1983
|The Ohio State University Research Foundation
|Therapeutic agents for preventing phospholipid degradation and free fatty acid proliferation
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|Romero et al.(I), "Low-Resolution Autoradiography in Rat Brain after Administering Labeled CDP-Choline Administration," Arzneimittel Forschung-Drug Research, 33(II), 1054-1056(1983).
|Romero et al.(I), Low Resolution Autoradiography in Rat Brain after Administering Labeled CDP Choline Administration, Arzneimittel Forschung Drug Research , 33(II), 1054 1056(1983).
|Romero et al.(II), "High-Resolution Autoradiography in Mouse Brain 24 h after Radiolabelled CDP-Choline Administration," Arzneimittel Forschung-Drug Research, 33(II), 1056-1058(1983).
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|Patente citante
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|20 Ago 2002
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|Compositions and methods for targeting cerebral circulation and treatment of headache
|27 Jun 2008
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|Clasificaci�n de EE.UU.
|514/49, 424/94.64, 514/161
|Clasificaci�n internacional
|Clasificaci�n cooperativa
|Clasificaci�n europea
|31 May 1996
Owner name: INTERNEURON PHARMWCEUTICALS, INC., MASSACHUSETTS
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Athlete Of The Week: Southern Guilford's Malik Moseley
High School PlaybookUPDATED 6:45 PM EST Nov 08, 2012
On the surface Malik is one of the better running backs in the area. With several colleges looking at him. But after a closer look at Malik his accomplishments are even more impressive.
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Jt Diesel Truck Service PerformanceRead MoreJt Diesel Truck Service Performance provides the most reliable body shop service at their location in Lakeside. You'll love the transformation your car goes through after stopping by their garage. Make sure your car looks as great as it did the day you drove it off the lot by inquiring about Jt Diesel Truck Service Performance's excellent dent and scratch repair service. Jt Diesel Truck Service Performance offers tire changes and rotations to keep your vehicle in top shape. Affordable and reliable oil changes are additionally offered by Jt Diesel Truck Service Performance. When your car needs body work done, make sure to gets the care it deserves with a visit to the auto specialists at Jt Diesel Truck Service Performance. For the absolute best service in Lakeside, there really is no better place than Jt Diesel Truck Service Performance's auto shop.8841 Winter Gardens BlvdLakeside, CA US
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Riema Saint Charbel Suites & Life, Sao Paulo
- Free buffet breakfast and free parking
Main amenities
- Restaurant and bar/lounge
- Indoor pool
- WiFi in the lobby
- Fitness center
- Business center
- 24-hour front desk
- Air conditioning
- Daily housekeeping
- Garden
- Laundry service
- Meeting room
- Multilingual staff
What's around
- In Consolacao
- Museum of Art of Sao Paulo (0.5 mi / 0.8 km)
- Municipal Theater (1.3 mi / 2 km)
- Viaduto do Cha (1.3 mi / 2.1 km)
- Football Museum (1.4 mi / 2.3 km)
- Pacaembu Stadium (1.5 mi / 2.5 km)
I don't know why, but the electricity keeps shutting off automatically after 5mins.…
I spent just one night in this hotel, during a business trip. All I wanted was a clean…
Enter dates to check prices
Hotel Info: 866-539-8117from $82
- Deluxe Single Room
- Deluxe Double Room
- Standard Double Room
- Standard Single Room
Also popular with travelers from the USA
At a glance
Key facts
- Check-in time starts at 2 PM
- Check-out time is noon
Required at check in
- Credit card or cash deposit required
- Government-issued photo ID required
- Minimum check-in age is 18
Travelling with others
- One child (5 years old and younger) stays free when occupying the parent or guardian's room, using existing bedding
- Parents must have child's birth certificate and photo ID *
- Pets not allowed (service dogs only)
Extra people
- Roll-away beds available, charges may apply*
- WiFi in public areas *
- WiFi in rooms *
- Free self parking
Nearby Three Star Sao Paulo hotels
In the hotel
- Free buffet breakfast daily
- Restaurant
- Bar/lounge
- Room service (during limited hours)
- Indoor pool
- Pool sun loungers
- Fitness facilities
- Spa tub
- Sauna
- Business center
- One meeting room
- 24-hour front desk
- Tours/ticket assistance
- Dry cleaning/laundry service
- Laundry facilities
- Free newspapers in lobby
- Luggage storage
- Elevator/lift
- Garden
In the room
- Air conditioning
- Minibar
- Private bathroom
- Shower only
- Free toiletries
- Hair dryer
- Cable TV channels
- WiFi (surcharge)
- Phone
- Daily housekeeping
- In-room safe
Top Sao Paulo hotels
Recently reviewed hotels in Sao Paulo
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"All great. Food could be better... it was the worst carpaccio I ever got and room service failed me on a free wine glass. I had a massage in their spa and was wonderfull...…"Aug 31, 2015
Special features
DiningRiema Saint Charbel - This restaurant specializes in Brazilian cuisine and serves breakfast, lunch, and dinner. Guests can enjoy drinks at the bar.
Riema Saint Charbel Suites & Life, Sao Paulo's small print
Also known as
- Riema Saint Charbel
- Riema Saint Charbel Suites Life
- Riema Saint Charbel Suites Life Hotel
- Riema Saint Charbel Suites Life Hotel Sao Paulo
- Riema Saint Charbel Suites Life Sao Paulo
- Riema Saint Charbel Suites & Life Sao Paulo, Brazil
Parents or a legal guardian traveling with children under 18 years must present the child's birth certificate and an identity card with photo (passport, for example) at the check-in. For international travels from Brazil, if just one of the parents is traveling with the child, she/he must present – in addition to the child's certificate of birth and identity card with photo – a letter authorizing the trip signed by the other parent with a notarial certification of signature. In case the parents or the legal guardian, as applicable, cannot or are unwilling to give this authorization, a judicial authorization is required. People who intend to travel to Brazil with children must consult with the Brazilian consulate before traveling for more information.
Optional extras
WiFi is available in guestrooms for an extra charge
WiFi is available in public areas for an extra charge
We have included all charges provided to us by this hotel. However, charges can vary, for example, based on length of stay or the room you book.


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Lots of nice restaurants nearby. Some people are nice.. Most chinese are snobs like they own America
Chinese community. If you're not Chinese, you're nothing to the management
Advice to Management
Treat your employees equally. Pay attention to the people who actually do the work. You don't realize how great the employees are until they're gone and it's all the management's fault. Management are only nice to Chinese employees.. If you're not chinese, there's no point in working there.
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It perhaps goes without saying that I was fairly excited about Planetary Annihilation at the point at which the Kickstarter appeared, but than that excitement was cubed by an interview I did with Jon Mavor. It was with some trepidation, then, that I watched the first in-game footage reveal, presented by Mavor and Steve Thompson. You can see it too, below.
Read the rest of this entry »
Posts Tagged 'Uber Entertainment'
Saturnalian: The First Planetary Annihilation Footage
Make It To Break It: Planetary Annihilation's Creation Tech
Biomes! Double Craters! Height ranges! I apologise for shouting! This is totally cool, even for someone as RTS-unsavvy as I am. The Planetary Annihilation developers are very serious about the planets that make up the game's maps, and have created the longest video ever to show you all the attributes players will have control over when they make their own planets. You know how some trailers and videos have production values? Not this one? It's just two guys with a game engine that makes painterly planets, and it's really rather fascinating.
Read the rest of this entry »
RPS Feature "a million units in a game"
Uber's Jon Mavor Explains Planetary Annihilation
Planetary Annihilation was undoubtedly one of the strongest Kickstarter projects to have appeared since Double Fine set off the goldrush. A stellar pitch, a cap doff to Total Annihilation, and the tech lead from Supreme Commander pouring all of his ambitions into it: few games can boast anything like this, and consequently this game threatens seismic effects in the RTS genre. The man making that happen is Jon Mavor, and I thought it well overdue for us to catch up with what he was up to, and why he is making one of the most exciting games of 2013.
Read the rest of this entry »
Planetary Annihilation Kickstarter Blasts Past $2m
Uber Entertainment's Total Annihilation-inspired Planetary Annihilation bid has already long surpassed its $900k goal, but is now soaring over $2m, with just hours to go. This means that a huge stack of stetch-goals have been unlocked, including naval units, orbital units, gas giants, and metal and lava planets. $2m means that the game gets a full orchestra-produced soundtrack, too. Amazing stuff.
This is an interesting pitch: nostalgia for an old franchise mixed with a genuine vision for the future of the RTS genre. I'd argue that the pitch video that Uber did for this – which you can see below – is one of the most convincing produced by any crowd-funding attempt. If you've not seen it, take a look. You'll smile.
Read the rest of this entry »
Planetary Annihilation: Total Annihilation With Planets
That headline may seem obvious, but wow. So Total Annihilation (and, more recently, Supreme Commander) were big, but Planetary Annihilation is shooting for the stars. And potentially shooting at them, as well. It's all the absurdly large-scale mechanized warfare you've (probably) known and loved since the late '90s, but now you can zoom out into space, build a fort on an asteroid, and then crash it into an enemy planet. So basically, total insanity. After the break, you'll find a video from Super Monday Night Combat maestros Uber Entertainment explaining their ambitious RTS (ambitiouRTS, for short) and – yes – asking for money.
Happy Mondays: Super Monday Night Combat
EDIT: Now with trailer!
Monday Night Combat is getting a sequel and it's going to be super. How do I know? Because that's its name. Super Monday Night Combat. Uber Entertainment are looking to go up against League of Legends and DOTA 2, emphasising the game's roots. Most pleasing of all, it will be free to play. That means, for now, it'll only be on PC because Sony and Microsoft simply won't allow such generosity on their stationboxes. The release date is as vague as "the next few months" but some details are already available. Overall, Uber are looking to slow the game down, giving players more time to think and plot strategies. All sounds good and as soon as we know more, you'll know more. Click for trailer and pics of the three new characters.
Monday Night Combat Free Weekend Is GO
If you never got around to trying indie tower defense / multiplayer combat hybrid Monday Night Combat then you'd better just hold on to your hat, and if you're not wearing a hat then go and get one and clutch it in both hands like you would a comfort blanket. As of right now MNC's undergoing one of Steam's excellent free weekends, and not only that, if you do decide to buy it then you'll get a hefty 33% off. MNC's been amassing plenty of positive reviews, and the trailer below should hint at why.
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Play Monday Night Combat On A Wednesday
We knew colourful multiplayer future-scrap Monday Night Combat was coming out on PC on the 24th of January. We did. What we didn't know, and by "We" I mean "I", what I didn't know, right, was that if you pre-order it on Steam you basically could have been playing the beta this whole time.
Read the rest of this entry »
Monday Night Combat Coming To PC
Splendid shooty arena game Monday Night Combat – which is a characterful Smash TV-like multiplayer game show action game with various different tactical elements thrown in to make it interesting – is coming to PC on 17th January. I guess that was revealed on Monday night, but oh well. Splendid news, anyway, as you can see from the trailer below. It's a fairly cheap preorder, too.
Read the rest of this entry »


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Girlband Parade visit Daily Star HQ.. Official music video for the track Girlband Parade visit the Daily Star by The Star.
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Carroll Baker, Harlow, 1965 directed by Gordon Douglas, Paramount Pictures
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Washington Co. Teacher Convicted of Luring Teen Student for Sex
Posted: 02/15/2008 - A Washington County teacher has been convicted on federal charges of luring a 14-year-old boy for sex.
Posted: 02/15/2008 - A Washington County teacher has been convicted on federal charges of luring a 14-year-old boy for sex.
Posted: 02/15/2008 - The Dothan Downtown Redevelopment Authority has been trying to bring down the old jail building for months for extra parking.
Updated: 02/15/2008 - A Marianna man is behind bars for allegedly selling the same home to several persons.
Updated: 02/15/2008 - Panama City Police arrested two teenagers after both allegedly broke into a school.
Posted: 02/14/2008 - Although a Geneva County grand jury has refused to indict a man in the shooting of a Hartford restaurant owner, authorities say the case remains active.
Updated: 02/14/2008 - The city of Dothan has been rapidly growing with new commercial buildings for retail space. Most of the land that has been cleared is green space, but city officials have been working to make sure that construction doesn't wipe out too much of the environment.
Posted: 02/14/2008 - A Geneva County man pled guilty to charges related to staging his own shooting.
Updated: 02/14/2008 - Love is in the air today as bouquets of flowers fly off the shelves at local florists. However, there are some things you should know when considering what to get your sweetheart.
Updated: 02/15/2008 - Authorities say at least 20 Valentine's Day lollipops that appear to have metal fragments in them have been recovered from a Polk County elementary school.
Updated: 02/15/2008 - When traveling down Highway 231 near the Dothan Pavilion, you may be one of the many annoyed with the traffic situation; however, that could soon come to a halt.
Updated: 02/15/2008 - A standoff between law enforcement and a woman ended peaceably in Florida early Thursday morning.
Updated: 02/14/2008 - Wiregrass residents are feeling a better sense of security in their neighborhoods in just a short amount of time, thanks to area law enforcement.
Updated: 02/15/2008 - A standoff at a Tuscaloosa apartment complex between police and an armed man who allegedly fired shots during a domestic dispute continued into the night Wednesday night.
Posted: 02/14/2008 - Hurricane victims who have lived in government-supplied trailers aren't surprised that the trailers aren't particularly healthful.
Updated: 02/14/2008 - Governor Bob Riley has appointed real estate broker Adam Drinkwater of Troy to a vacancy on the Pike County Commission created by the recent death of Commissioner David Carpenter.
Posted: 02/14/2008 - A landscaper digging holes to plant trees yesterday hit a two-inch gas main used by 120-homes in the Grove Park subdivision.
Updated: 02/13/2008 - Law enforcement from Barbour County and surrounding areas received specialized training Wednesday in an effort to help stop drug trafficking.
Updated: 02/14/2008 - The Dothan City Commission voted four to three against adding $100,000 dollars to a project to connect Murphy Mill Road and Flynn Road near Northside Wal-Mart.
Posted: 02/13/2008 - Barbour County authorities were involved in a training exercise when they were interrupted to deal with a real-life situation.
Posted: 02/13/2008 - A former pastor and postman who was convicted for committing sexual abuse of an elderly woman denied probation.
Updated: 02/13/2008 - The city commissioners approved a road project that will cost more than one-million dollars.
Posted: 02/13/2008 - Troy University Dothan is gearing up to make some significant changes.
Updated: 02/13/2008 - Two Flowers Hospital employees are being called "healthcare heroes".
Updated: 02/13/2008 - Water World brings thousands of people to Dothan each year and now it's going to cost a little more to get through the gates.
Updated: 02/14/2008 - Two boys are facing felony charges after authorities say they vandalized a Bay County cemetery.


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DISCLAIMER: Because of the generality of this update, the information provided herein may not be applicable in all situations and should not be acted upon without specific legal advice based on particular situations.
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