Cited by 16CAR-T cell therapy researchMultiple Myeloma Research and TreatmentsMonoclonal and Polyclonal Antibodies Research

Rapid anti-myeloma activity by T cells expressing an anti-BCMA CAR with a human heavy-chain-only antigen-binding domain

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Mikkilineni, Lekha, Natrakul, Danielle A., Lam, Norris, Manasanch, Elisabet E., Mann, Jennifer, Weissler, Katherine A., Wong, Nathan, Brudno, Jennifer N. +17 more·2024·Molecular Therapy

Abstract

Multiple myeloma (MM) is a rarely curable malignancy of plasma cells. MM expresses B cell maturation antigen (BCMA). We developed a fully human anti-BCMA chimeric antigen receptor (CAR) with a heavy-chain-only antigen-recognition domain, a 4-1BB domain, and a CD3ζ domain. The CAR was designated FHVH33-CD8BBZ. We conducted the first-in-humans clinical trial of T cells expressing FHVH33-CD8BBZ (FHVH-T). Twenty-five patients with relapsed MM were treated. The stringent complete response rate (sCR) was 52%. Median progression-free survival (PFS) was 78 weeks. Of 24 evaluable patients, 6 (25%) had a maximum cytokine-release syndrome (CRS) grade of 3; no patients had CRS of greater than grade 3. Most anti-MM activity occurred within 2–4 weeks of FHVH-T infusion as shown by decreases in the rapidly changing MM markers serum free light chains, urine light chains, and bone marrow plasma cells. Blood CAR + cell levels peaked during the time that MM elimination was occurring, between 7 and 15 days after FHVH-T infusion. C-C chemokine receptor type 7 (CCR7) expression on infusion CD4 + FHVH-T correlated with peak blood FHVH-T levels. Single-cell RNA sequencing revealed a shift toward more differentiated FHVH-T after infusion. Anti-CAR antibody responses were detected in 4 of 12 patients assessed. FHVH-T has powerful, rapid, and durable anti-MM activity.

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Crossref · 10.1016/j.ymthe.2023.12.018

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  • The overall PFS with FHVH33-CD8BBZ was 78 weeks.

    “Results indicated that 92% (23/25) patients achieved an objective response, 68% (17/25) of patients attained sCR or VGPR, and the overall PFS was 78 weeks, indicating a durable response to treatment.”

    From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [249]

  • In 25 patients with relapsed MM, 92% (23/25) achieved an objective response to FHVH33-CD8BBZ, and 68% (17/25) attained sCR or VGPR.

    “Results indicated that 92% (23/25) patients achieved an objective response, 68% (17/25) of patients attained sCR or VGPR, and the overall PFS was 78 weeks, indicating a durable response to treatment.”

    From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [249]

  • 25% of patients experienced a maximum CRS grade of 3 with FHVH33-CD8BBZ, and no patients had CRS greater than grade 3.

    “25% of patients experienced a maximum CRS grade of 3, and no patients had CRS greater than grade 3 [248, 249].”

    From Multiple myeloma: signaling pathways and targeted therapy (2024) · cites this paper as [249]

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Authors
Mikkilineni, L., Natrakul, D. A., Lam, N., Manasanch, E. E., Mann, J., Weissler, K. A., Wong, N., Brudno, J. N., Goff, S. L., Yang, J. C., Ganaden, M., Patel, R., Zheng, Z., Gartner, J. J., Martin, K. R., Wang, H.-W., Yuan, C. M., Lowe, T., Maric, I., Shao, L., Jin, P., Stroncek, D. F., Highfill, S. L., Rosenberg, S. A., & Kochenderfer, J. N.
Affiliations
  • National Institutes of Health (US)
  • The University of Texas MD Anderson Cancer Center (US)
  • Frederick National Laboratory for Cancer Research (US)
Corresponding author
Kochenderfer, James N.
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2024-02
Volume
32
Issue
2
Pages
503-526
ISSN
1525-0016 (ISSN-L)
OpenAlex
W4390350110
Cited by
16
References
102
Citations by year
2026: 6 · 2025: 4 · 2024: 6
FWCI
1.95
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Commons-TMC (Texas Medical Center) (submittedVersion)
Funders
  • National Institutes of Health
  • U.S. Department of Health and Human Services
  • National Cancer Institute (ZIABC011439-11)
  • Bristol-Myers Squibb
  • Center for Cancer Research (HHSN261201500003I)
Topics
  • Health Sciences › Medicine › Oncology › CAR-T cell therapy research
  • Health Sciences › Medicine › Hematology › Multiple Myeloma Research and Treatments
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
Keywords
BCMA, chimeric antigen receptor T cells, multiple myeloma, T cell differentiation, CAR T-cell therapy
MeSH terms
Receptors, Chimeric Antigen, Bone Marrow, Humans, Multiple Myeloma, T-Lymphocytes, Immunotherapy, Adoptive

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