Primary Objectives: * To determine the maximum tolerated dose of SAR650984 (isatuximab) with lenalidomide and dexamethasone (LD) in patients with relapsed or refractory multiple myeloma. * Expansion Phase Only: To further evaluate preliminary evidence of antitumor activity (objective response rate \[ORR\]) of SAR650984 (isatuximab) in combination with LD using International Myeloma Working Group (IMWG) criteria. Secondary Objectives: * To evaluate the safety, including immunogenicity, of SAR650984 (isatuximab) in combination with LD in relapsed or refractory multiple myeloma. The severity, frequency and incidence of all toxicities will be assessed. * To evaluate the pharmacokinetics (PK) of SAR650984 (isatuximab) when administered in combination with LD and the PK of lenalidomide in combination with SAR650984 and dexamethasone. * To assess the relationship between clinical (adverse event \[AE\] and/or tumor response) effects and pharmacologic parameters (PK/pharmacodynamics), and/or biologic (correlative laboratory) results. * For the dose expansion phase, estimate the activity (ORR) using IMWG defined response criteria of SAR650984 (isatuximab) plus LD. * To describe progression-free survival (PFS) in patients treated with this combination.
The study duration for an individual patient will include a screening period for inclusion of up to 21 days, and at least 4 weeks of treatment in the absence of severe adverse reaction, dose limiting toxicity or disease progression plus up to 60 days post-treatment follow up. The treatment period may continue until disease progression, intolerable toxicity, or Investigator, sponsor, or patient decision to discontinue therapy. After study treatment discontinuation, an end of treatment (EOT) visit will be done at 30 days to assess safety, and at 30 and 60 days for anti-drug antibody (ADA) and PK. If the ADA is positive or inconclusive at day 60, then PK and ADA will be repeated every 30 days until ADA is negative. Patients who discontinue treatment for reasons other than progression of disease will be followed monthly until progression, initiation of subsequent therapy, or until the primary analysis cutoff date, whichever comes first.
Study Type
INTERVENTIONAL
Purpose
TREATMENT
Masking
NONE
Enrollment
57
Pharmaceutical form:solution Route of administration: intravenous
Pharmaceutical form:capsules Route of administration: oral
Pharmaceutical form:solution or tablet Route of administration: intravenous or oral
Investigational Site Number 840004
San Francisco, California, United States
Investigational Site Number 840001
Tampa, Florida, United States
Investigational Site Number 840002
St Louis, Missouri, United States
Investigational Site Number 840005
New York, New York, United States
Investigational Site Number 840003
Columbus, Ohio, United States
Number of patients with adverse events when treated with SAR650984 (isatuximab) in combination with LD
Time frame: Up to 30 days for patients experiencing progressive disease and continuously while patients are on treatment
Preliminary assessment of overall response rate
Time frame: 9 months from the last investigational medicinal product (IMP)/non-IMP (NIMP) administration
Preliminary assessment of progression-free survival (PFS)
Time frame: Up to disease progression
Assessment of PK parameters - maximum concentration (Cmax)
Time frame: Up to disease progression plus 60 days
Assessment of PK parameters - time to reach Cmax (Tmax)
Time frame: Up to disease progression plus 60 days
Assessment of PK parameters - concentration observed at end of infusion (Ceoi)
Time frame: Up to disease progression plus 60 days
Assessment of PK parameters - area under the plasma concentration versus time curve over the dosing interval (AUCtau)
Time frame: Up to disease progression plus 60 days
Assessment of PK parameters - plasma concentration observed just before treatment administration during repeated dosing (Ctrough)
Time frame: Up to disease progression plus 60 days
Number of CD38 receptors occupied by SAR650984 (isatuximab)
Time frame: Up to disease progression plus 60 days
CD38 receptor density
Time frame: Up to disease progression plus 60 days
Immunogenicity: Number of anti-SAR650984 (isatuximab) antibodies in response to SAR650984 (isatuximab)
Time frame: Up to disease progression plus 60 days
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