A Randomized Phase III Trial Assessing Iberdomide Versus Iberdomide Plus Isatuximab Maintenance Therapy Post Autologous Hematopoietic Stem Cell Transplantation in Patients With Newly Diagnosed Multiple Myeloma
The goal of this clinical trial is to compare a maintenance therapy consisting of iberdomide and isatuximab with an iberdomide-only regimen. The trial is the subsequent maintenance therapy to GMMG-HD8/DSMM XIX trial for patients with newly-diagnosed multiple myeloma. Patients with newly-diagnosed multiple myeloma who underwent a similar quadruplet induction/consolidation therapy regimen followed by at least one ASCT can also be recruited. The main question it aims to answer is: • Will the addition of isatuximab lead to decreased amounts of measurable myeloma cells in the bone marrow after two years?
• Prior inclusion and treatment within the GMMG-HD8 / DSMM XIX trial OR
• Received a quadruplet induction/consolidation therapy that consists of a proteasome inhibitor (PI) and immunomodulatory drug (IMiD) \[e.g., bortezomib, thalidomide and dexamethasone, or bortezomib, lenalidomide and dexamethasone\] with an anti-CD38 monoclonal antibody (isatuximab or daratumumab)
• Post HDM/ASCT consolidation containing similar substances as induction therapy is permitted
• Induction and consolidation therapy should make up a total of at least 4 up to 6 cycles, with a maximum of 2 consolidation cycles post HDM/ASCT AND
• Received at least one cycle high dose melphalan therapy (HDM) and autologous stem cell transplantation (ASCT)
• At least Partial Response (PR) according to IMWG criteria at inclusion in the trial
• Age of at least 18 years at trial inclusion
• WHO performance status of 0, 1, or 2
• Negative pregnancy test at inclusion (women of childbearing potential)
• For all men and women of childbearing potential: patients must be willing and capable to use adequate contraception during the complete therapy
• Ability of patient to understand character and individual consequences of the clinical trial
• Written informed consent (must be available before enrolment in the trial)