Conditions: Multiple Myeloma
Keywords: Drug Therapy
Allocation:  | Intervention model: PARALLEL
Enrollment: 61
Healthy volunteers: no

Brief summary:
The purpose of this phase 1/2, open-label study was to evaluate the effect of oral formulation of Ixazomib when added to standard melphalan and prednisone (MP) treatment. Both phases of the study included participants who had newly diagnosed multiple myeloma and were ineligible for high-dose therapy plus stem cell transplantation because of age (≥65 years of age) or coexisting conditions and for whom standard MP treatment was indicated.

Detailed description:
The drug tested in this study was called ixazomib (MLN9708). Ixazomib was tested to treat the people with newly diagnosed multiple myeloma requiring systemic treatment who were not eligible for stem cell transplantation. This study determined the safety, tolerability, efficacy, quality of life (QOL), and pharmacokinetics (PK)/pharmacodynamics (PD) of ixazomib.

The study enrolled 61 patients. The study was conducted in 2 parts: 1) phase 1 dose escalation and 2) phase 2 expansion at maximum tolerated dose. Participants were enrolled to receive:

* Ixazomib 3.0 mg, 3.7 mg, 4.0 mg, or 5.5. mg depending on the treatment assignment

This multicenter trial was conducted in the Unites states, Canada, United Kingdom, Spain and Czech Republic. The overall time to participate in this study is 5.5 years. Participants made multiple visits to the clinic and were followed up every 16 weeks after end of treatment until disease progression if stopped treatment before disease progression and then every 16 weeks up to start of next therapy or death whichever occurs first.

Arms:
arm 1: Ixazomib 3.0 mg, capsules, orally, on Days 1, 4, 8, 11, 22, 25, 29, 32 plus melphalan 9 mg/m\^2, tablets, orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1 to 4 in 42-day cycle for up to 9 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle for up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 23 maintenance cycles; overall up to 32 cycles \[34 months\]). arm 2: Ixazomib 3.7 mg, capsules, orally, on Days 1, 4, 8, 11, 22, 25, 29, 32 plus melphalan 9 mg/m\^2, tablets, orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1 to 4 in 42-day cycle for up 9 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 10 maintenance cycles; overall up to 19 cycles \[21 months\]). arm 3: Ixazomib 3.0 mg, capsules, orally, on Days 1, 8, 15 plus melphalan 6 mg/m\^2, tablets, orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1-4 in 28-day cycle for up to 13 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 15 maintenance cycles; overall up to 27 cycles \[25 months\]). arm 4: Ixazomib 4.0 mg, capsules, orally, on Days 1, 8, 15 cycle plus melphalan 6 mg/m\^2, tablets, orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1-4 in 28-day cycle for up to 13 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 49 maintenance cycles; overall up to 61 cycles \[58 months\]). arm 5: Ixazomib 5.5 mg, capsules, orally, on Days 1, 8, 15 plus melphalan 6 mg/m\^2, tablets orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1-4 in 28-day cycle for up to 13 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 12 maintenance cycles; overall up to 24 cycles \[24 months\]). arm 6: Ixazomib 3.0 mg, capsules, orally, on Days 1, 8, 15, 22, and 29 plus melphalan 9 mg/m\^2, tablets orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1 to 4 in 42-day cycle for up to 9 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 30 maintenance cycles; overall up to 39 cycles \[40 months\]). arm 7: Ixazomib 4.0 mg, capsules, orally, on Days 1, 8, 15, 22, and 29 plus melphalan 9 mg/m\^2, tablets, orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally on Days 1 to 4 in 42-day cycle for up to 9 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 12 maintenance cycles; overall up to 21 cycles \[24 months\]). arm 8: Ixazomib 4.0 mg, capsules, orally, on Days 1, 8, 22, and 29 plus melphalan 9 mg/m\^2, tablets, orally on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally, on Days 1 to 4 in 42-day cycle for up to 9 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 28 maintenance cycles; overall up to 37 cycles \[38 months\]).

Interventions: intervention 1: Ixazomib intervention 2: Melphalan intervention 3: Prednisone
Intervention descriptions: intervention 1: Ixazomib capsules intervention 2: Melphalan tablets intervention 3: Prednisone tablets

Protocol document: