Overview

The purpose of this study is to evaluate how well JNJ-79635322 works (efficacy) in participants with Relapsed or Refractory Multiple Myeloma (RRMM; a cancer that forms in a type of white blood cells called a plasma cell. Cancer is called relapsed if it comes back after treatment and is called 'refractory' if does not respond to treatment) who have received at least 3 prior lines of therapy.

Eligibility

Inclusion

• Documented diagnosis of multiple myeloma (MM) as defined by the criteria below:
  1. MM diagnosis according to the international myeloma working group (IMWG) diagnostic criteria
  2. Measurable disease at screening as assessed by central laboratory
• Received at least 3 prior lines of antimyeloma therapy including a proteasome inhibitor (PI), an immunomodulatory drug (IMiD), and an anti-cluster of differentiation (CD) 38 monoclonal antibody (mAb)
• Documented evidence of progressive disease(PD) or failure to achieve a response to the last line of therapy based on investigator's determination of response by the IMWG criteria
• Have discontinued concurrent use of any other anticancer treatment (including nonpalliative radiotherapy) or investigational agent
• Have an eastern cooperative oncology group (ECOG) performance status (PS) of 0 to 2 at screening and immediately before the start of study treatment administration

Exclusion

• Suspected or known allergies, hypersensitivity, or intolerance to excipients of JNJ-79635322
• Had major surgery within 2 weeks before first dose or has planned major surgery during study treatment phase
• Known active or prior central nervous system (CNS) involvement or exhibits clinical signs of meningeal involvement of MM
• Participant has leptomeningeal disease
• Participant has a prior or concurrent second malignancy the natural history or treatment of which could likely interfere with any study endpoints of safety or the efficacy of the study treatment