ival . ▁For ▁example , ▁ 2 8 ▁patients ▁treated ▁with ▁a ▁bor te z om ib - based ▁induction ▁reg imen ▁followed ▁by ▁aut olog ous ▁stem - cell ▁trans plant ation ▁and ▁then ▁a ▁maintenance ▁reg imen ▁of ▁len ald om ide ▁( an ▁imm unos upp ress ant ▁related ▁to ▁th al id om ide ), ▁bor te z om ib , ▁and ▁de x am eth as one ▁( a ▁cort ic ost ero id ) ▁has ▁a ▁pro gression ▁free ▁surv ival ▁rate ▁of ▁ 6 6 % ▁at ▁ 3 ▁years ▁and ▁an ▁overall ▁surv ival ▁rate ▁of ▁ 7 3 % ▁at ▁ 4 ▁years . ▁In ▁one ▁study , ▁patients ▁receiving ▁int ensive ▁chem other apy ▁plus ▁aut olog ous ▁stem - cell ▁trans plant ation ▁had ▁a ▁median ▁surv ival ▁of ▁ 3 4 ▁months ▁while ▁those ▁receiving ▁chem other apy ▁alone ▁had ▁a ▁median ▁surv ival ▁of ▁ 1 1 ▁months . ▁Two ▁other ▁studies ▁that ▁included ▁bor te z om ib ▁in ▁their ▁chem other apy ▁reg im ens ▁like wise ▁found ▁that ▁the ▁addition ▁of ▁aut olog ous ▁stem - cell ▁trans plant ation ▁improved ▁results . ▁Current ▁recommend ations ▁for ▁tre ating ▁p P CL ▁often ▁include ▁induction ▁with ▁a ▁three ▁drug ▁reg imen ▁such ▁as ▁bore z om ib - len al id om ide - dex am eth as one ▁followed ▁by ▁aut olog ous ▁stem - cell ▁trans plant ion ▁and ▁cons olid ation / main ten