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No longer recruiting (closed or complete)Last updated: 1 July 2025

MajesTEC-10: The purpose of this study is to compare the process by which drugs are absorbed, distributed in the body, and excreted between teclistamab immunotherapy made from the current commercial manufacturing process and the new manufacturing processA Phase 1 Randomized, Open Label Pharmacokinetic Comparability Study Comparing Pre- and Post-change Teclistamab in Participants With Relapsed/Refractory Multiple Myeloma

Trial purpose

Medical clipboardCancer treatment

Tumor type

Blood Cancers Haematological

Age

People18+

Trial acronym

MajesTEC-10

Clinical summary

Summary

Eliigble participants will be randomly allocated to one of two treatment arms. Teclistamab will be administered subcutaneously (an injection under the skin) in both arms.

In Arm A, participants will receive teclistamab (made from the pre-change or current manufacturing process) for all step-up and treatment doses. 

In Arm B, participants will receive teclistamab (made from the post-change or new manufacturing process) for all step-up and treatment doses.

Conditions

This trial is treating people with multiple myeloma

Eligibility

Inclusion

  • Documented diagnosis of multiple myeloma as defined by the criteria below: (a) Multiple myeloma diagnosis according to International Myeloma Working Group (IMWG) diagnostic criteria (b) Measurable disease at screening as defined by any of the following: (1) Serum M-protein level greater than or equal to (>=) 0.5 grams per deciliter (g/dL) (central laboratory); or (2) Urine M-protein level >=200 milligrams (mg)/24 hours (central laboratory); or (3) Serum immunoglobulin free light chain >=10 milligrams per deciliter (mg/dL) (central laboratory) and abnormal serum immunoglobulin kappa lambda free light chain ratio
  • Received 1 to 3 prior lines of antimyeloma therapy, including a minimum of 2 consecutive cycles each of a protease inhibitor (PI), lenalidomide, and an anti-cluster of differentiation 38 (CD38) monoclonal antibody (or minimum of 6 doses if anti CD38 monoclonal antibody was only part of a maintenance regimen) in any prior line
  • Documented evidence of progressive disease or failure to achieve a response to last line of therapy based on investigator's determination of response by IMWG criteria
  • Have an eastern cooperative oncology group (ECOG) performance status score of 0 to 2
  • A female participant of childbearing potential must have a negative highly sensitive serum pregnancy test at screening and within 24 hours of the start of study treatment and must agree to further serum or urine pregnancy tests during the study

Exclusion

  • Received any bispecific antibody and/or chimeric antigen receptor T cell (CAR-T) cell therapy
  • Contraindications or life-threatening allergies, hypersensitivity, or intolerance to any study drug or its excipients
  • Received a live, attenuated vaccine within 4 weeks before the first dose of study drug. Non-live or non-replicating vaccines authorized for emergency use by local health authorities are allowed
  • Central nervous system involvement or clinical signs of meningeal involvement of multiple myeloma. If either is suspected, negative whole brain magnetic resonance imaging (MRI) and lumbar cytology may be required
  • Participant had major surgery or had significant traumatic injury within 2 weeks prior to randomization, or will not have fully recovered from surgery, or has major surgery planned during the time the participant is expected to be treated in the study

Inclusion

  • You have had treatment but your cancer has gotten worse or has not responded to the treatment you have been given.
  • You have had a certain type of treatment or surgical procedure.

Exclusion

  • You have had certain treatments, surgical procedures or drugs.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Janssen Research & Development, LLC

Scientific Title

A Phase 1 Randomized, Open Label Pharmacokinetic Comparability Study Comparing Pre- and Post-change Teclistamab in Participants With Relapsed/Refractory Multiple Myeloma

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