Recent Updates
Recently added Catalysts

JANX013

Phase 1

Prostate Cancer | Small molecule | Oncology |Janux Therapeutics, Inc.|Trials Updated: Sep 17, 2026

JANX013 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2026

JANX013 target and mechanism

Molecular targetPSMA
Target classAntigen
ModalitySmall molecule

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLED
Total Trials1
Total Enrollment110

FDA Designations

No designations recorded

JANX013 clinical trials

JANX013 · 1 trial · 4 indications

Phase 1 1
NCT07813637Phase 1 Trial to Study JANX013 and JANX007 Combination in mCRPCProstate Cancer
RECRUITING110 Analytics
PHASE1RECRUITING
Phase 1 Trial to Study JANX013 and JANX007 Combination in mCRPC
Prostate CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence of adverse events (AEs), serious adverse events (SAEs), and dose-limiting toxicities (DLTs)
2 years
Incidence of cytokine release syndrome (CRS)
2 years

Cytokine release syndrome (CRS) assessed according to ASTCT criteria.

Secondary Endpoints

Area under the curve from 0 to t of JANX013 and JANX007
Up to 2 years
Maximum observed concentration of JANX013 and JANX007
Up to 2 years
Time to maximum concentration of JANX013 and JANX007
Up to 2 years
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose EscalationEXPERIMENTALParticipants receive JANX013 in combination with JANX007 administered at increasing dose levels per cohort
Dose ExpansionEXPERIMENTALParticipants receive JANX013 in combination with JANX007. Participants will be dosed at levels previously declared tolerable.

Interventions

NameTypeDescription
JANX013DRUGJANX013 will be administered via IV dosing.
JANX007DRUGJANX007 will be administered via IV dosing.
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexMALE
Healthy VolunteersNo
Study Sites1

Key Inclusion Criteria: * Male participants ≥ 18 years of age at the time of signing informed consent * Histologically or cytologically confirmed adenocarcinoma of the prostate For Dose Escalation: \- Have received at least 1 novel ARPI (e.g., abiraterone acetate, enzalutamide, apalutamide, or da...

Countries:United States
Unlock Eligibility Criteria

Competitive Landscape -Prostate Cancer 418 trials

Top 20 of 55 competitors

Unlock Competitive Intelligence

Recent Changes (Last 90 Days)

LOWSep 17, 2026NCT07813637Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 17, 2026NCT07813637Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 10, 2026NCT07813637NEW_TRIAL: changed
LOWSep 10, 2026NCT07813637NEW_TRIAL: changed

Frequently asked questions about JANX013

What is JANX013?

JANX013 is an investigational small molecule developed by Janux Therapeutics, Inc. (ticker JANX) for the treatment of prostate cancer. It is being studied in a Phase 1 clinical trial in patients with metastatic castration-resistant prostate cancer (mCRPC), where it is evaluated in combination with another agent, JANX007.

What is JANX013 used for in prostate cancer?

JANX013 is being developed for prostate cancer, specifically for patients with castration-resistant prostate cancer (CRPC), metastatic prostate cancer, and metastatic castration-resistant prostate cancer (mCRPC). It is an investigational therapy and is not yet approved for commercial use; it is currently being evaluated in an early-stage clinical trial.

What does JANX013 target?

JANX013 targets PSMA, or prostate-specific membrane antigen, which is an antigen expressed on prostate cancer cells. By binding PSMA, the small molecule is designed to act on prostate cancer cells that carry this target, and it is being studied in patients with metastatic castration-resistant prostate cancer.

Who is developing JANX013?

JANX013 is being developed by Janux Therapeutics, Inc., a biopharmaceutical company that trades under the ticker symbol JANX. Janux Therapeutics is the sponsor of the Phase 1 clinical trial evaluating JANX013 in combination with JANX007 in patients with metastatic castration-resistant prostate cancer.

What phase is JANX013 in?

JANX013 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The single Phase 1 trial is currently recruiting participants and is designed to enroll approximately 110 patients with prostate cancer, including metastatic castration-resistant prostate cancer.

What clinical trials is JANX013 in?

JANX013 is being studied in one Phase 1 clinical trial, NCT07813637, titled a Phase 1 Trial to Study JANX013 and JANX007 Combination in mCRPC. The trial is recruiting in the United States, is controlled, is not randomized or double-blind, and plans to enroll 110 male participants aged 18 years and older.