## Protocol Section
### Identification Module
**NCT ID:** NCT06433947

**Brief Title:** Study to Assess Safety and Tolerability of OPN-6602 in Subjects With Relapsed and/or Refractory Multiple Myeloma

**Official Title:** A Phase 1b, Dose Escalation/Dose Expansion, Multicenter, Open-Label Study to Assess the Safety and Tolerability of OPN-6602 Monotherapy and in Combination With Dexamethasone in Subjects With Relapsed and/or Refractory Multiple Myeloma

#### Organization Study ID Info
**ID:** OPN6602-C01
#### Organization
**Class:** INDUSTRY
**Full Name:** Opna Bio LLC
### Status Module
#### Completion Date
**Date:** 2026-07

**Type:** ESTIMATED

#### Expanded Access Info
#### Last Update Post Date
**Date:** 2024-05-31

**Type:** ESTIMATED

**Last Update Submit Date:** 2024-05-29

**Overall Status:** NOT_YET_RECRUITING

#### Primary Completion Date
**Date:** 2026-07

**Type:** ESTIMATED

#### Start Date
**Date:** 2024-06

**Type:** ESTIMATED

**Status Verified Date:** 2024-05

#### Study First Post Date
**Date:** 2024-05-30
**Type:** ACTUAL
**Study First Submit Date:** 2024-05-23
**Study First Submit QC Date:** 2024-05-23
### Sponsor Collaborators Module

#### Lead Sponsor

**Class:** INDUSTRY

**Name:** Opna Bio LLC

#### Responsible Party

**Type:** SPONSOR

### Oversight Module

**Is FDA Regulated Device:** False

**Is FDA Regulated Drug:** True

**Oversight Has DMC:** True

### Description Module

**Brief Summary:** Phase 1b, open-label study evaluating the safety, tolerability, pharmacokinetics, preliminary antitumor activity, and pharmacodynamics of OPN-6602 monotherapy and in combination with dexamethasone in subjects with relapsed and/or refractory MM.

### Conditions Module

**Conditions:**

- Relapsed Multiple Myeloma

- Refractory Multiple Myeloma

### Design Module

#### Design Info

**Allocation:** NON_RANDOMIZED

**Intervention Model:** SINGLE_GROUP

##### Masking Info

**Masking:** NONE

**Primary Purpose:** TREATMENT

#### Enrollment Info

**Count:** 130

**Type:** ESTIMATED

**Phases:**

- PHASE1

**Study Type:** INTERVENTIONAL

### Arms Interventions Module

#### Arm Group 1

**Intervention Names:**

- Drug: OPN-6602

**Label:** Dose escalation monotherapy

**Type:** EXPERIMENTAL

#### Arm Group 2

**Intervention Names:**

- Drug: OPN-6602

- Drug: Dexamethasone

**Label:** Dose escalation in combo with dexamethasone

**Type:** EXPERIMENTAL

#### Arm Group 3

**Intervention Names:**

- Drug: OPN-6602

**Label:** Dose expansion

**Type:** EXPERIMENTAL

### Interventions

#### Intervention 1

**Arm Group Labels:**

- Dose escalation in combo with dexamethasone

- Dose escalation monotherapy

- Dose expansion

**Description:** orally active, small molecule inhibitor of EP300 and CBP bromodomain; dosed daily

**Name:** OPN-6602

**Type:** DRUG

#### Intervention 2

**Arm Group Labels:**

- Dose escalation in combo with dexamethasone

**Description:** Synthetic glucocorticoid; 40 mg Days 1, 8, 15 of each cycle

**Name:** Dexamethasone

**Type:** DRUG

### Outcomes Module

#### Primary Outcomes

**Measure:** Number and type of dose-limiting toxicities (DLTs)

**Time Frame:** Through up to approximately 30 days following last dose of OPN-6602

**Measure:** Number and type of treatment-emergent adverse events (TEAEs)

**Time Frame:** Through up to approximately 30 days following last dose of OPN-6602

**Description:** Number of participants who experienced a clinical laboratory test abnormality, including hematology and serum chemistry, and coagulation. Abnormalities considered are those Grade 3-4 events with a \>= 1 grade increase from baseline using National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

**Measure:** Number of Participants With Clinical Laboratory Test Abnormalities

**Time Frame:** Through up to approximately 30 days following last dose of OPN-6602

### Eligibility Module

**Eligibility Criteria:** Inclusion Criteria:

* Confirmed diagnosis of multiple myeloma (MM)
* Relapsed or refractory to 3 or more different prior lines of therapy for MM that included immunomodulatory agents, proteosome inhibitors, and anti-CD38 antibody and not a candidate for or intolerant to established therapy known to provide clinical benefit
* Adequate hematologic, renal, liver, cardiac function

Exclusion Criteria:

* Monoclonal gammopathy of undetermined significance (MGUS), smoldering myeloma, Waldenström's macroglobulinemia, or IgM myeloma
* Active plasma cell leukemia
* Polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes (POEMS syndrome)
* Prior Stevens Johnson syndrome
* Localized radiation therapy to disease site(s) within 2 weeks of the first dose
* Prior autologous peripheral stem cell transplant or prior autologous bone marrow transplantation within \<90 days of the first dose of study drug
* Prior allogeneic stem cell transplantation or solid organ transplantation within 12 months of screening; subjects receiving immunosuppressive medication for active graft vs host disease will be excluded.
* Prior chemotherapy, targeted anticancer or radiation therapy within 2 weeks prior to first dose of study drug
* Concomitant high-dose corticosteroids (except subjects on chronic steroids given for disorders other than myeloma)
* Known central nervous system involvement by multiple myeloma
* Active known second malignancy with exception of adequately treated basal cell carcinoma, squamous cell carcinoma of the skin, or in situ cervical cancer; adequately treated Stage 1 cancer from which the subject is currently in remission and has been in remission for ≥2 years; low-risk prostate cancer with a Gleason score \<7 and a PSA level \<10 ng/mL; any other cancer from which the subject has been disease-free for ≥3 years
* Ongoing systemic infection requiring parenteral treatment
* Poorly controlled Type 2 diabetes

**Minimum Age:** 18 Years

**Sex:** ALL

**Standard Ages:**

- ADULT

- OLDER_ADULT

### Contacts Locations Module

#### Central Contacts

**Contact 1:**

**Email:** kinokuchi@opnabio.com

**Name:** Kerry Inokuchi

**Phone:** 650-204-4065

**Role:** CONTACT

#### Locations

**Location 1:**

**City:** Boston

**Country:** United States

**Facility:** Dana Farber Cancer Institute

**State:** Massachusetts

**Zip:** 02215

### IPD Sharing Statement Module

**IPD Sharing:** NO

## Derived Section

### Condition Browse Module - Ancestors

- ID: D000009370

- Term: Neoplasms by Histologic Type

- ID: D000009369

- Term: Neoplasms

- ID: D000020141

- Term: Hemostatic Disorders

- ID: D000014652

- Term: Vascular Diseases

- ID: D000002318

- Term: Cardiovascular Diseases

- ID: D000010265

- Term: Paraproteinemias

- ID: D000001796

- Term: Blood Protein Disorders

- ID: D000006402

- Term: Hematologic Diseases

- ID: D000006474

- Term: Hemorrhagic Disorders

- ID: D000008232

- Term: Lymphoproliferative Disorders

- ID: D000007160

- Term: Immunoproliferative Disorders

- ID: D000007154

- Term: Immune System Diseases

### Condition Browse Module - Browse Branches

- Abbrev: BC04

- Name: Neoplasms

- Abbrev: BC14

- Name: Heart and Blood Diseases

- Abbrev: BC15

- Name: Blood and Lymph Conditions

- Abbrev: BC20

- Name: Immune System Diseases

- Abbrev: All

- Name: All Conditions

- Abbrev: Rare

- Name: Rare Diseases

### Condition Browse Module - Browse Leaves

- ID: M12058

- Name: Multiple Myeloma

- Relevance: HIGH

- As Found: Multiple Myeloma

- ID: M27588

- Name: Neoplasms, Plasma Cell

- Relevance: HIGH

- As Found: Multiple Myeloma

- ID: M12315

- Name: Neoplasms by Histologic Type

- Relevance: LOW

- As Found: Unknown

- ID: M21977

- Name: Hemostatic Disorders

- Relevance: LOW

- As Found: Unknown

- ID: M5059

- Name: Blood Coagulation Disorders

- Relevance: LOW

- As Found: Unknown

- ID: M17400

- Name: Vascular Diseases

- Relevance: LOW

- As Found: Unknown

- ID: M13178

- Name: Paraproteinemias

- Relevance: LOW

- As Found: Unknown

- ID: M5077

- Name: Blood Protein Disorders

- Relevance: LOW

- As Found: Unknown

- ID: M9490

- Name: Hematologic Diseases

- Relevance: LOW

- As Found: Unknown

- ID: M9560

- Name: Hemorrhagic Disorders

- Relevance: LOW

- As Found: Unknown

- ID: M11225

- Name: Lymphoproliferative Disorders

- Relevance: LOW

- As Found: Unknown

- ID: M10206

- Name: Immunoproliferative Disorders

- Relevance: LOW

- As Found: Unknown

- ID: M10200

- Name: Immune System Diseases

- Relevance: LOW

- As Found: Unknown

- ID: T3947

- Name: Multiple Myeloma

- Relevance: HIGH

- As Found: Multiple Myeloma

### Condition Browse Module - Meshes

- ID: D000009101

- Term: Multiple Myeloma

- ID: D000054219

- Term: Neoplasms, Plasma Cell

### Intervention Browse Module - Ancestors

- ID: D000000893

- Term: Anti-Inflammatory Agents

- ID: D000000932

- Term: Antiemetics

- ID: D000001337

- Term: Autonomic Agents

- ID: D000018373

- Term: Peripheral Nervous System Agents

- ID: D000045505

- Term: Physiological Effects of Drugs

- ID: D000005765

- Term: Gastrointestinal Agents

- ID: D000005938

- Term: Glucocorticoids

- ID: D000006728

- Term: Hormones

- ID: D000006730

- Term: Hormones, Hormone Substitutes, and Hormone Antagonists

- ID: D000018931

- Term: Antineoplastic Agents, Hormonal

- ID: D000000970

- Term: Antineoplastic Agents

### Intervention Browse Module - Browse Branches

- Abbrev: Infl

- Name: Anti-Inflammatory Agents

- Abbrev: ANeo

- Name: Antineoplastic Agents

- Abbrev: AnEm

- Name: Antiemetics

- Abbrev: Gast

- Name: Gastrointestinal Agents

- Abbrev: All

- Name: All Drugs and Chemicals

### Intervention Browse Module - Browse Leaves

- ID: M7102

- Name: Dexamethasone

- Relevance: HIGH

- As Found: Children

- ID: M9047

- Name: Glucocorticoids

- Relevance: LOW

- As Found: Unknown

- ID: M235549

- Name: Dexamethasone acetate

- Relevance: LOW

- As Found: Unknown

- ID: M4217

- Name: Anti-Inflammatory Agents

- Relevance: LOW

- As Found: Unknown

- ID: M4251

- Name: Antiemetics

- Relevance: LOW

- As Found: Unknown

- ID: M8881

- Name: Gastrointestinal Agents

- Relevance: LOW

- As Found: Unknown

- ID: M9789

- Name: Hormones

- Relevance: LOW

- As Found: Unknown

- ID: M9788

- Name: Hormone Antagonists

- Relevance: LOW

- As Found: Unknown

- ID: M20966

- Name: Antineoplastic Agents, Hormonal

- Relevance: LOW

- As Found: Unknown

### Intervention Browse Module - Meshes

- ID: D000003907

- Term: Dexamethasone

### Misc Info Module

- Version Holder: 2024-05-31
