RecruitingPhase 1NCT07545811

Study of JANX014 in Subjects With Metastatic Castration-Resistant Prostate Cancer

A Phase 1 Open-Label, Multicenter Study of JANX014 in Participants With Prostate Cancer

Sponsor

Janux Therapeutics

Enrollment

43 participants

Start Date

Apr 15, 2026

Study Type

INTERVENTIONAL

Conditions

Prostate Cancer Metastatic Castration-resistant Prostate Cancer Castration-resistant Prostate Cancer

Summary

This study is a first-in-human, Phase 1, open-label, multicenter study to assess the safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD), and the preliminary efficacy of JANX014 in adults with metastatic castration-resistant prostate cancer (mCRPC).

Eligibility

Sex: MALEMin Age: 18 Years

Inclusion Criteria5

Male ≥18 years of age at the time of signing informed consent
Histologically or cytologically confirmed adenocarcinoma of the prostate
For Dose Escalation: Having mCRPC that progressed after at least one novel anti-androgen therapy and at least one taxane containing regimen. Participants who have actively refused a taxane containing regimen or are medically unsuitable to receive taxane are eligible.
Adequate organ function
For Dose Expansion Part: Have received ≤ 2 anti-androgen therapies in either the HSPC or CRPC setting and no more than 1 prior taxane regimen in the HSPC setting. Participants who have actively refused a taxane regimen or are medically unsuitable to receive taxane are eligible.

Exclusion Criteria3

Prior solid organ transplant
Prior treatment with any CAR-T cell therapy, approved or investigational T-cell engager therapy, and prior receipt of radioligand therapy
Clinically significant cardiovascular disease

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