Phase 1/2 Dose Escalation and Efficacy Study of Anti-CD38 Monoclonal Antibody in Patients With Selected CD38+ Hematological Malignancies

Summary

Primary Objective: Phase 1: To determine the maximum tolerated dose (MTD)/maximum administered dose (MAD) of SAR650984 (Isatuximab). Phase 2 (stage 1): To evaluate the activity of single-agent Isatuximab at different doses/schedules and to select dose and regimen to further evaluate the overall response rate (ORR) of Isatuximab as single agent or in combination with dexamethasone. Phase 2 (stage 2): To evaluate the activity in terms of overall response rate (ORR) of Isatuximab at the selected dose/schedule from stage1, as single agent (ISA arm) and in combination with dexamethasone (ISAdex arm). Secondary Objectives: Phase 1: * To characterize the global safety profile including cumulative toxicities. * To evaluate the pharmacokinetic (PK) profile of Isatuximab in the proposed dosing schedule(s). * To assess the pharmacodynamics (PD), immune response, and preliminary disease response. Phase 2 (stage 1): to evaluate the following objectives for Isatuximab as single agent: * Safety * Efficacy as measured by duration of response, clinical benefit rate, progression free survival, overall survival. Phase 2 (stage 2): to evaluate the following objectives in each arm (ISA and ISAdex): * Safety * Efficacy as measured by duration of response, clinical benefit rate, progression free survival, overall survival. * Participant-reported changes in health-related quality of life, symptoms of multiple myeloma and generic health status. * Pharmacokinetic profile of Isatuximab. * Immunogenicity of Isatuximab. * Investigate the relationship between CD38 receptor density and CD38 receptor occupancy (Stage 1 only) on multiple myeloma cells and parameters of clinical response.

Timeline

Start

2010-05-11

Primary completion

2018-12-21

Completion

2023-07-13

Publications

• Dimopoulos M, Bringhen S, Anttila P, Capra M, Cavo M, Cole C, Gasparetto C, Hungria V, Jenner M, Vorobyev V, Ruiz EY, Yin JY, Saleem R, Hellet M, Mace S, Paiva B, Vij R. Isatuximab as monotherapy and combined with dexamethasone in patients with relapsed/refractory multiple myeloma. Blood. 2021 Mar 4;137(9):1154-1165. doi: 10.1182/blood.2020008209.
• Mikhael J, Richter J, Vij R, Cole C, Zonder J, Kaufman JL, Bensinger W, Dimopoulos M, Lendvai N, Hari P, Ocio EM, Gasparetto C, Kumar S, Oprea C, Chiron M, Brillac C, Charpentier E, San-Miguel J, Martin T. A dose-finding Phase 2 study of single agent isatuximab (anti-CD38 mAb) in relapsed/refractory multiple myeloma. Leukemia. 2020 Dec;34(12):3298-3309. doi: 10.1038/s41375-020-0857-2. Epub 2020 May 14.

Drugs

Indications