Pre-Approval Access Program for Talquetamab in Relapsed or Refractory Multiple Myeloma

Study Purpose

The purpose of this pre-approval access program is to give talquetamab monotherapy (treatment with single drug) to participants with relapsed or refractory multiple myeloma (a type of cancer that begins in plasma cells [white blood cells that produce antibodies] which has returned or difficult to treat) who have relapsed on or are refractory to all locally available and clinically appropriate treatment and who are not eligible for a clinical trial.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Expanded Access
Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - Participant diagnosed with relapsed or refractory multiple, myeloma.
- Participant exhausted all commercially approved and clinically appropriate treatment options, and is ineligible for a clinical trial

Trial Details

Trial ID:

This trial id was obtained from, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.


Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Janssen Research & Development, LLC
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Janssen Research & Development, LLC Clinical Trial
Principal Investigator Affiliation Janssen Research & Development, LLC
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Overall Status Available

The disease, disorder, syndrome, illness, or injury that is being studied.

Relapsed or Refractory Multiple Myeloma
Additional Details

Talquetamab (JNJ-64407564) is a humanized immunoglobulin G4 proline, alanine, alanine (IgG4PAA) bispecific antibody designed to target G-Protein Coupled Receptor (5DGPRC5D) and cluster of differentiation 3 (CD3). Redirecting T-cells to a tumor surface antigen using bispecific antibody approaches may be an effective means to harness the immune system to destroy cancer cells expressing GPRC5D and create meaningful and long-lasting clinical responses. Talquetamab is supplied as single-dose Investigational Product (IP) vials for subcutaneous administration. Safety assessments will include adverse events, serious adverse events, adverse drug reactions, and special situations which will be reported during the duration of the pre-approval access program.

Contact Information

This trial has no sites locations listed at this time. If you are interested in learning more, you can contact the trial's primary contact:

Study Contact


For additional contact information, you can also visit the trial on