A Safety and Efficacy Study Evaluating CTX131 in Adult Subjects With Relapsed or Refractory Solid Tumors
This is an open-label, multicenter, Phase 1/2 study evaluating the safety and efficacy of CTX131™ in subjects with relapsed or refractory solid tumors.
Ask AI to explain this studyKey things to know
This describes the study’s primary purpose.
The study team can explain what participation involves.
These are broad labels—not an eligibility decision.
Checked against the public recordLast updated Nov 26, 2025 · Source: ClinicalTrials.gov
Ask the study team to confirm whether enrollment is open.
Interventional
Locations may change over time.
Study sponsor
What this study is about
- Purpose
- Treatment
- Study type
- Interventional
- Phase
- Phase 1 / Phase 2
- Sponsor
- CRISPR Therapeutics AG
- Interventions being studied
- Biological: CTX131
How this study is categorized
These labels come from structured fields and exact terms in the public record.
Who may be able to participate
The sponsor separates these requirements into two groups. You do not need to interpret them alone—use them to guide a conversation with the study team.
Key 1. Age ≥18 years. 2. Unresectable or metastatic, relapsed/refractory, clear cell renal cell carcinoma, cervical carcinoma, pancreatic adenocarcinoma, esophageal carcinoma, and malignant pleural mesothelioma. 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 CTX131 infusion. Key
1. Prior treatment with anti-CD70 targeting agents 2. History of certain central nervous system (CNS), cardiac or pulmonary conditions. 3. Presence of uncontrolled bacterial, viral, or fungal infection. 4. Active HIV, hepatitis B virus or hepatitis C virus infection. 5. Primary immunodeficiency disorder or active autoimmune disease requiring steroids and/or other immunosuppressive therapy. 6. Women who are pregnant or breastfeeding.
Important: This is the sponsor’s public criteria, not a determination of eligibility. The study team must review your individual situation.
U.S. locations
- Research Site 3Duarte, California
- Research Site 7Chicago, Illinois
- Research Site 6Boston, Massachusetts
- Research Site 2St Louis, Missouri
- Research Site 4Durham, North Carolina
- Research Site 1Nashville, Tennessee
- Research Site 5Houston, Texas
Source and freshness
Processed from ClinicalTrials.gov. Last public update: Nov 26, 2025. Always confirm current availability with the study team.