NCT07543055 · Regeneron Pharmaceuticals
A Phase 1 Study of BPX-601 CAR T-Cell Therapy in Adult Participants With Prostate Cancer That Has Returned, is Resistant to Treatment and Has Spread
What this study is about
This study will test a study drug called BPX-601, a CAR-T cell product manufactured from the patient's own T-cells, to see if it can help treat advanced prostate cancer. BPX-601 is a drug that is only used in clinical studies.
View original scientific description
This study will test a study drug called BPX-601, a CAR-T cell product manufactured from the patient's own T-cells, to see if it can help treat advanced prostate cancer. BPX-601 is a drug that is only used in clinical studies.
Interventions
GENETIC
BPX-601
Administered per protocol
Primary outcome measures
Occurrence of Treatment Emergent Adverse Events (TEAEs)
Time frame: Up to 4 years
Occurrence of Dose Limiting Toxicities (DLTs)
Time frame: Up to Day 28
Occurrence of Adverse Events of Special Interest (AESIs)
Time frame: Up to 4 years
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Histologically or cytologically confirmed diagnosis of hormone-refractory adenocarcinoma of the prostate without pure small cell carcinoma
- Metastatic, Castration-Resistant Prostate Cancer (mCRPC) with PSA value at screening ≥4 ng/mL that has progressed within 6 months prior to screening, as defined in the protocol
- Has received ≥2 lines prior systemic therapy approved in the metastatic and/or castration-resistant setting \[in addition to Androgen Deprivation Therapy (ADT)\] including at least 1 second-generation anti-androgen therapy (eg, abiraterone, enzalutamide, apalutamide, or darolutamide)
- Has had either orchiectomy OR is on Luteinizing Hormone-Releasing Hormone (LHRH) agonist or antagonist therapy with serum testosterone \<50 ng/dL AND agrees to stay on LHRH agonist or antagonist therapy during the study Key
Exclusion criteria
- Structurally unstable bone lesions suggesting impending fracture
- Clinical or radiographic evidence of deep vein thrombosis, pulmonary embolism, or other known thromboembolic event that has not been definitively treated. Participants with prior history of coagulopathy must be on low-molecular weight heparin prophylaxis or prophylactic dose of oral anticoagulant and asymptomatic within 4 weeks of the planned BPX-601 infusion
- Inadequate renal function defined by creatinine clearance \<60 mL/min calculated by 24-hour urine collection or using the Cockcroft-Gault formula
- Inadequate hepatic function defined by Aspartate aminotransferase (AST) and/or Alanine aminotransferase (ALT) \>2.5 × ULN or \>5 × ULN, if liver metastases, and/or total bilirubin \>1.5 × ULN, as described in the protocol
- Inadequate bone marrow function defined by Absolute Neutrophil Count (ANC) \<1.5 × 10\^9/L or platelet count \<150 × 10\^9/L. At least 7 days must have passed since the last dose of filgrastim (or 14 days since the last dose of pegfilgrastim) and at least 7 days must have passed since the last platelet transfusion at the time of ANC or platelet count. Note: Other protocol-defined Inclusion/Exclusion criteria apply
Where
- Hackensack, New Jersey
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 30, 2026 · Source of record for eligibility and locations