First-in-Human Study to Evaluate AZD8359 STEAP2 TCE in Participants With Prostate Cancer
Recruiting now · Phase 1/Phase 2
Conditions studied: Metastatic Prostate Cancer
In brief
This study is being conducted to learn more about the safety, tolerability, and effectiveness of an experimental treatment for metastatic prostate cancer called AZD8359. The study is split into different modules which will look at AZD8359 delivered by different methods. The study is also further split into 2 parts, Part A which will test different dose levels and dosing schedules of AZD8359 to determine which doses are the best in terms of safety and side effects (dose escalation), and Part B will further test at least two AZD8359 doses in a larger group of participants (dose expansion).
Key facts
- Study ID
- NCT07529717
- Run by
- AstraZeneca
- People needed
- 42
- Starts
- 2026-05-18
- Expected to finish
- 2027-11-17
- Last updated by the study team
- 2026-08-06
Who can join
Age: 18 and older, up to 100. Sex: male. Healthy volunteers: not accepted.
You may qualify if…
- Histologically confirmed diagnosis of adenocarcinoma of the prostate or neuroendocrine differentiated prostate cancer
- Surgically or medically castrated with serum testosterone levels ≤ 50 ng/dL (≤ 1.75 nmol/L)
- PSA value at screening should be ≥ 1ng/mL
- Evidence of disease progression within 6 months prior to screening
- Part A Participants should have received at least 2 prior approved systemic therapies for prostate cancer with at least one androgen receptor pathway inhibitor and at least one taxane regimen if amenable
- Part B Participants should have received an androgen receptor pathway inhibitor for metastatic hormone sensitive prostate cancer or metastatic castration resistant prostate cancer (mCRPC). No prior taxane treatment for mCRPC is allowed for Module 1 and 2 Part B patients
- Adequate organ function
- Body weight ≥ 35 kg
You may not qualify if…
- Any clinically relevant cardiac abnormalities such as QT prolongation or uncontrolled cardiac arrythmias
- All prior treatment-related adverse events must have resolved to Grade ≤ 2
- History of Grade ≥ 3 cytokine release syndrome or Grade ≥ 2 immune effector cell-associated neurotoxicity syndrome with prior therapy
- Active or prior documented autoimmune or inflammatory disorders within the past 3 years
- Prior exposure to any STEAP2 targeted agents or TCEs for prostate cancer
Where it is running
- Research Site — Seoul, South Korea (enrolling)
- Research Site — East Brunswick, New Jersey, United States (enrolling)
- Research Site — Orlando, Florida, United States (enrolling)
- Research Site — Providence, Rhode Island, United States (enrolling)
- Research Site — Darlinghurst, Australia (enrolling)
- Research Site — Melbourne, Australia (enrolling)
- Research Site — Seoul, South Korea (enrolling)
- Research Site — Hackensack, New Jersey, United States
Full record on ClinicalTrials.gov
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