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No longer recruiting (closed or complete)Last updated: 26 February 2025

This phase I trial will begin to understand the safety and effectiveness of a new form of immunotherapy for the treatment of patients with multiple myeloma who have not responded or got worse using previous treatmentA Phase 1 Dose Escalation and Cohort Expansion Study of the Safety and Efficacy of Anti-BCMA Allogeneic CRISPR-Cas9-Engineered T Cells (CTX120) in Subjects With Relapsed or Refractory Multiple Myeloma

Trial purpose

Medical clipboardCancer treatment

Tumor type

Blood Cancers Haematological

Age

People18+

Clinical summary

Summary

CTX120 B-cell maturation antigen (BCMA)-directed T-cell immunotherapy comprised of allogeneic T cells genetically modified ex vivo using CRISPR-Cas9 gene editing components, will be administered by intravenous (IV) infusion following treatment with lymphodepleting chemotherapy.

Conditions

This trial is treating people with multiple myeloma

Eligibility

Inclusion

  1. Age ≥18 years.
  2. Relapsed or refractory multiple myeloma, as defined by IMWG response criteria and treatment with at least 2 prior lines of therapy.
  3. Eastern Cooperative Oncology Group performance status 0 or 1.
  4. Adequate renal, liver, cardiac and pulmonary organ function
  5. Female subjects of childbearing potential and male subjects must agree to use acceptable method(s) of contraception from enrollment through at least 12 months after CTX120 infusion.

Exclusion

  1. Prior allogeneic stem cell transplant (SCT).
  2. Less than 60 days from autologous SCT at time of screening and with unresolved serious complications.
  3. Prior treatment with any gene therapy or genetically modified cell therapy, including CAR T cells or natural killer cells, or BCMA-directed therapy.
  4. Evidence of direct central nervous system (CNS) involvement by multiple myeloma.
  5. History or presence of clinically relevant CNS pathology such as a seizure disorder, cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, any autoimmune disease with CNS involvement.
  6. Unstable angina, clinically significant arrhythmia, or myocardial infarction within 6 months of enrollment.
  7. Active HIV, hepatitis B virus or hepatitis C virus infection.
  8. Previous or concurrent malignancy, except basal cell or squamous cell skin carcinoma, adequately resected and in situ carcinoma of cervix, or a previous malignancy that was completely resected and has been in remission for ≥5 years.
  9. Use of systemic anti-tumor therapy or investigational agent within 14 days prior to enrollment.
  10. Primary immunodeficiency disorder or active autoimmune disease requiring steroids and/or other immunosuppressive therapy.
  11. Women who are pregnant or breastfeeding.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
  • You are currently being treated on a clinical trial.
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.

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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

CRISPR Therapeutics AG

Scientific Title

A Phase 1 Dose Escalation and Cohort Expansion Study of the Safety and Efficacy of Anti-BCMA Allogeneic CRISPR-Cas9-Engineered T Cells (CTX120) in Subjects With Relapsed or Refractory Multiple Myeloma

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