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by Dr. C.H. Weaver M.D. 8/2022

Results from an ongoing clinical trials evaluating teclistamab (JNJ-64007957) for the treatment of relapsed or refractory multiple myeloma appear encouraging and were featured during the American Society of Hematology and ASCO 2022 annual meetings.  The U.S. Food and Drug Administration has granted teclistamab orphan drug status.

Multiple Myeloma CancerConnect 490

About Multiple Myeloma

Multiple myeloma is a cancer of the blood that affects the plasma cells. Plasma cells are an important part of the immune system; they produce antibodies to help fight infection and disease. Multiple myeloma is characterized by an excess production of abnormal plasma cells. Symptoms include increased risk of bacterial infections and impaired immune responses. Because patients whose cancer has returned following prior therapy are typically considered incurable, treatment is aimed at extending survival as well as maintaining quality of life.

About Teclistamab

Teclistamab is a bispecific antibody administered subcutaneously that targets both BCMA and CD3. BCMA, (B-cell maturation antigen), is expressed at high levels on multiple myeloma cells and teclistamab redirects CD3-positive T-cells to BCMA-expressing myeloma cells to kill the targeted cells.

The current trial enrolled patients with multiple myeloma who had relapsed or were refractory to established myeloma therapies and had previously been treated with a proteasome inhibitor (PI) and an immunomodulatory drug (IMiD). Enrolled patients had received a median of six prior lines of treatment (range, 2-14).

In total, 165 patients were enrolled in the trial. Teclistamab appeared well tolerated. The most common side effects were neutropenia (40%), anemia (28%), and thrombocytopenia (20%). In total 70% of patients experienced Cytokine Release Syndrome (CRS) but all events were minor. CRS occurred at a median onset of 2 days (range, 1-6) and lasted for a median of 2 days (range, 1-8). 

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The overall response rate was 63% and 39% of patients experienced a complete response. The median duration of response was 18 months and has not been reached in individuals attaining a complete response.  

Teclistamab is also being evaluated in combination with other medications to determine if its effectiveness can be improved further. When combined with 

  • Darzalex (daratumumab) and anti CD38 monoclonal antibody a response rate of 77% was reported. 
  • Combination with talquetamab, daratumumab, and other precision medicines is also being evaluated. 

Teclistamab appears to be an effective new precision cancer medicine for the treatment of Multiple Myeloma. Enrollment in the ongoing clinical trial will continue and updated safety and additional effectiveness results will be forthcoming.

Multiple Myeloma Newsletter 490


  1. Garfall, AL et al. Updated Phase 1 Results of Teclistamab, a B-cell Maturation Antigen (BCMA) × CD3 Bispecific Antibody, in Relapsed and/or Refractory Multiple Myeloma (RRMM). 2020 American Society of Hematology Annual Meeting. December 2020.
  2. American Cancer Society. "Key Statistics About Multiple Myeloma." Available here. Accessed January 2020.
  3. Krishnan AY, Garfall AL, Mateos MV, et al. Updated phase 1 results of teclistamab, a B-cell maturation antigen (BCMA) × CD3 bispecific antibody, in relapsed/refractory multiple myeloma (MM). J Clin Oncol. 2021;39:(suppl 15; abstr 8007). doi:10.1200/JCO.2021.39.15_suppl.8007.
  4. Moreau P, Garfall A, van de Donk, NWCJ, et al. Teclistamab in Relapsed or Refractory Multiple Myeloma. N Engl J Med. Published online June 5, 2022. doi:10.1056/NEJMoa2203478.