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Study to evaluate the safety, effects, and early effectiveness of IDB-1829 in combination with Enzalutamide in patients with advanced prostate cancer

A Phase 2a Open-Label, Multicenter, First-in-Human Study to Assess Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of IDB-1829 in Combination with Enzalutamide in Participants with Metastatic Castration-Resistant Prostate Cancer(mCRPC)

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12626000947303
Enrollment
6
Registered
2026-07-30
Start date
2027-04-15
Completion date
2027-07-30
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

- This study is testing a new medicine called IDB-1829 for advanced prostate cancer that no longer responds to standard hormone treatments. Who is it for? - You may be eligible for this study if you are an adult with prostate cancer, where the cancer has stopped responding to hormone therapy. Participants in this study must have also received at least one prior treatment for resistant prostate cancer. Study details - All participants in this study will be asked to take a dose of the new medicine daily in 21-day cycles. The number of cycles will depend on how the participant is responding to the treatment. - Participants will also be asked to provide blood samples throughout the treatment and be followed up for review of safety and via scans to assess changes in the cancer. - It is hoped that this research will help determine if the new medicine is a viable option for the treatment of hormone resistant prostate cancer.

Interventions

- Participants will receive IDB-1829 orally once daily in combination with enzalutamide 160 mg orally once daily, administered in continuous 21-day treatment cycles. IDB-1829 will be evaluated using a dose-escalation design, with doses ranging from 1 mg to 7 mg once daily, depending on the participant cohort and dose level assigned. -Treatment will continue until unacceptable toxicity, disease progression, or study discontinuation criteria (Investigator judgment that continued treatment is not i

- Participants will receive IDB-1829 orally once daily in combination with enzalutamide 160 mg orally once daily, administered in continuous 21-day treatment cycles. IDB-1829 will be evaluated using a dose-escalation design, with doses ranging from 1 mg to 7 mg once daily, depending on the participant cohort and dose level assigned. -Treatment will continue until unacceptable toxicity, disease progression, or study discontinuation criteria (Investigator judgment that continued treatment is not in the participant's best interest, Pregnancy (of a Women of Childbearing Potential (WOCBP) partner), Sponsor decision to terminate the study) are met. - up to 6 participants will be enrolled in this part. - Study Duration (per participant): Screening up to 28 days; treatment until disease progression, unacceptable toxicity, or other discontinuation criterion; 30-day safety follow-up (SFU); long-term follow-up every 3 months until 2 years after the last participant ends treatment or end of study (EOS).

Sponsors

Interdict Bio
Lead SponsorCommercial sector/Industry

Study design

Allocation
Non-randomised trial
Primary purpose
Treatment

Eligibility

Sex/Gender
Male
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age 18 or older 2. Confirmed diagnosis of prostate cancer (adenocarcinoma) that has spread to other parts of the body(metastatic disease) 3. Cancer has stopped responding to hormone therapy (castration-resistant prostate cancer, or mCRPC) 4. Currently on hormone therapy (androgen deprivation therapy) or has had surgical removal of thetesticles, with testosterone levels at or below 50 ng/dL 5. Cancer has gotten worse on or after the most recent treatment 6. Able to carry out normal daily activities with little or no physical limitation (ECOG performance status 0 or1) 7. Has not received any prior treatment for mCRPC

Exclusion criteria

1. Received chemotherapy, immunotherapy, targeted therapy, or another investigational cancer treatmentwithin 21 days before starting study treatment (or within 6 weeks for prior radiopharmaceutical therapysuch as lutetium-177 PSMA) 2. Received radiation therapy within 28 days before starting study treatment 3. Prostate cancer with small cell or neuroendocrine features on any prior or current biopsy 4. Stroke or mini-stroke (TIA) within the past 6 months 5. History of organ transplant

Outcome results

None listed

Source: ANZCTR · Data processed: Aug 10, 2026