Hematological Malignancies
Conditions
Brief summary
The purpose of this study is to characterize the safety of Talquetamab and to determine the recommended Phase 2 dose(s) (RP2Ds) and dosing schedule assessed to be safe for Talquetamab (Part 1 \[Dose Escalation\]) and to further characterize the safety of Talquetamab at the recommended Phase 2 dose(s) (RP2Ds) (Part 2 \[Dose Expansion\]).
Interventions
Participants will receive IV infusion or SC injection of Talquetamab.
Sponsors
Study design
Eligibility
Inclusion criteria
* Documented initial diagnosis of multiple myeloma according to International Myeloma Working Group (IMWG) diagnostic criteria * Part 1: Participants with measurable multiple myeloma who have progressed on, or could not tolerate, all available established therapies. Part 2: Participants with multiple myeloma measurable by central laboratory assessment who have progressed on, or could not tolerate, all available established therapies; Serum monoclonal paraprotein (M-protein) level greater than or equal to (\>=) 1.0 gram per deciliter (g/dL) or urine M-protein level \>=200 milligram per 24 hours (mg/24 h) or light chain multiple myeloma without measurable disease in the serum or the urine: serum immunoglobulin free light chain (FLC) \>= 10 mg/dL and abnormal serum immunoglobulin kappa lambda FLC ratio; If central laboratory assessments are not available, relevant local laboratory measurements must exceed the minimum required level by at least 25% * Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1 * Women of childbearing potential must have a negative pregnancy test at screening and prior to the first dose of study drug using a highly sensitive pregnancy test either serum (Beta human chorionic gonadotropin \[beta-hCG\]) or urine * Sign an informed consent form (ICF) indicating that he or she understands the purpose of and procedures required for the study, and is willing to and able participate in the study. Consent is to be obtained prior to the initiation of any study-related tests or procedures that are not part of standard-of-care for the participant's disease
Exclusion criteria
* Participants who received or plan to receive any live, attenuated vaccine within 4 weeks prior to the first dose, during treatment, or within 4 weeks of the last dose of Talquetamab. Non-live or non-replicating vaccines approved or authorized for emergency use (example, coronavirus disease \[COVID\]-19) by local health authorities are allowed * Toxicities from previous anticancer therapies should have resolved to baseline levels or to Grade 1 or less except for alopecia or peripheral neuropathy * Received a cumulative dose of corticosteroids equivalent to greater than or equal to ( \>=) 140 milligram (mg) of prednisone within the 14-day period before the first dose of study drug (does not include pretreatment medication) * An allogenic stem cell transplant within 6 months before first dose of study drug. Participants who received an allogeneic transplant must be off all immunosuppressive medications for 6 weeks without signs of graft-versus-host disease (GVHD); and/or an autologous stem cell transplant less than or equal to (\<=) 12 weeks before first dose of study drug * Documented history of central nervous system (CNS) involvement or exhibits clinical signs of meningeal involvement of multiple myeloma. If either is suspected, whole body magnetic resonance imaging (MRI) and lumbar cytology are required
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Part 1: Dose-limiting Toxicity (DLT) | Up to Day 28 | The Dose Limiting Toxicities (DLTs) are based on drug related adverse events and defined as any of the following events: hematological / non-hematological toxicity of Grade 3 or higher. |
| Part 1 and Part 2: Number of Participants with Adverse Events (AEs) as a Measure of Safety and Tolerability | From signing of Informed Consent Form (ICF) up to follow up (until 100 days after the last dose of study drug or until the start of subsequent anticancer therapy, if earlier [approximately 2.10 years]) | An AE is any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the pharmaceutical/biological agent under study. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Part 1: Talquetamab Serum Concentrations | Up to 4 weeks | Serum concentrations will be calculated for Talquetamab. |
| Part 1 and Part 2: Biomarker Assessment | Up to Cycle 7 Day 1 (each cycle of 21-days) | Serum cytokine concentrations will be measured pre- and post-infusion of Talquetamab for biomarker assessment. |
| Part 1: Number of Participants with Talquetamab Antibodies | Up to 4 weeks | Antibodies to Talquetamab will be assessed to evaluate potential immunogenicity. |
| Part 2: Overall Response Rate (ORR) | Approximately 2.10 years | ORR is defined as the proportion of participants who have a partial response (PR) or better according to the international myeloma working group (IMWG) criteria. |
| Part 2: Clinical Benefit Rate (CBR) | Approximately 2.10 years | CBR is defined as the proportion of participants who have a minimal response (MR) or better according to the IMWG criteria. |
| Part 2: Duration of Response (DOR) | From the date of initial documentation of a response to the date of first documented evidence of progressive disease (PD) (approximately 2.10 years) | DOR is defined as time from date of initial documentation of a response (PR or better) to date of first documented evidence of PD, per IMWG criteria. |
| Part 2: Time to Response (TTR) | From the date of first dose of study drug to the date of initial documentation of a response (approximately 2.10 years) | TTR is defined as the time between date of first dose of study drug and the first efficacy evaluation that the participant has met all criteria for PR or better. |
| Part 2: Progression-Free Survival (PFS) | Every 16 weeks until end of study, participant dies, withdrawn consent, or lost to follow up (up to 18 months) | PFS is defined as time from date of first dose of study drug to date of first documented PD, per IMWG criteria, or death due to any cause, whichever occurs first. |
Countries
Belgium, Netherlands, Spain, United States
Contacts
Janssen Research & Development, LLC