NCT03562169

The Role of Ixazomib in Autologous Stem Cell Transplant in Relapsed Myeloma - Myeloma XII (ACCoRd)

A Phase III Study to Determine the Role of Ixazomib as an Augmented Conditioning Therapy in Salvage Autologous Stem Cell Transplant (ASCT) and as a Post-ASCT Consolidation and Maintenance Strategy in Patients With Relapsed Multiple Myeloma

• Status: Recruiting
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 406 (estimated)
• Sponsor: University of Leeds · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

Study design: Randomised, controlled, multi-centre, open-label, phase III trial (with a single intervention registration phase). Primary Objectives The primary objectives of this study are to determine: * The impact on Depth of Response (DoR: less than VGPR versus VGPR or better) when salvage ASCT conditioning is augmented by the addition of a proteasome inhibitor * The influence of a consolidation and maintenance strategy on the Durability of Response (DuR:PFS) Secondary objectives The secondary objectives of this study are to determine: * Overall survival * Time to disease progression * The overall response rate following ixazomib, thalidomide and dexamethasone (ITD) re-induction * Time to next treatment * Progression-free survival 2 (PFS2) * Duration of response * Minimal Residual Disease (MRD) negative rate post re-induction, post-ASCT and conversion after ITD consolidation * Engraftment kinetics * Toxicity and safety * Quality of life (QoL) Participant population (refer to protocol section 9 for a full list of eligibility criteria). * Relapsed MM (with measurable disease by IMWG criteria) previously treated with ASCT * First progressive disease (PD) at least 12 months since first ASCT, requiring therapy. * ECOG Performance Status 0-2 * Aged at least 18 years * Adequate full blood count and renal, hepatobiliary, pulmonary and cardiac function * Written informed consent Interventions: All participants will be registered at trial entry and will receive re-induction therapy with 4-6, 28-day cycles of ixazomib, thalidomide and dexamethasone (ITD), in order to reach maximum response. Participants who achieve at least stable disease (SD) will be randomised on a 1:1 basis to receive either conventional ASCT (ASCTCon), using melphalan, or augmented ASCT (ASCTAug), using melphalan with ixazomib. All participants achieving or maintaining a minimal response (MR) or better following trial ASCT will undergo a second randomisation to consolidation and maintenance or no further treatment. Participants randomised to consolidation and maintenance will receive treatment as follows: consolidation with 2 cycles of ITD and maintenance with ixazomib until disease progression. Number of participants: 406 participants will be registered into the trial to allow 284 participants to be randomised at the first randomisation (R1) and 248 participants to be randomised at the second randomisation (R2).

Conditions

• Multiple Myeloma

Interventions

Type	Name	Description
DRUG	Ixazomib, thalidomide, & dexamethasone (ITD) re-induction	4 - 6 ITD 28-day cycles as follows: * Ixazomib 4mg capsule on days 1, 8 and 15 * Thalidomide 100mg capsule on days 1-28 * Dexamethasone 40mg tablets on days 1, 8, 15 and 22
DRUG	Conventional autologous stem cell transplant (ASCT-con)	Melphalan 200mg/m2 IV infusion on Day -1, followed by ASCT on Day 0.
DRUG	Augmented autologous stem cell transplant (ASCT-aug)	Melphalan 100mg/m2 IV infusion on Day -3 and Day -2 plus ixazomib 4mg capsules on Day -4 and Day -1. ASCT will then be given on Day 0.
DRUG	ITD consolidation and ixazomib maintenance vs. No further therapy	Participants will be randomised to either 'no further therapy' or 'ITD consolidation and ixazomib maintenance'. Participants randomised to 'no further treatment' will not receive any further treatment but will be followed up at 8 weeks post randomisation 2 and at 3-monthly clinic visits until disease progression. Participants randomised to ITD consolidation and ixazomib maintenance will receive: Two 28-day cycles of ITD consolidation (same doses as in ITD re-induction). This will be followed by ixazomib maintenance as follows: Ixazomib 4mg capsule on days 1, 8 and 15 of each 28-day cycle until disease progression.

Timeline

• Start date: 2017-03-20
• Primary completion: 2026-03-01
• Completion: 2027-03-01
• First posted: 2018-06-19
• Last updated: 2018-06-19

Locations

91 sites across 1 country: United Kingdom