Treatment for HER2-Positive Metastatic Castration-Resistant Prostate Cancer

A Phase II Clinical Trial to Evaluate the Efficacy and Safety of Fam-Trastuzumab Deruxtecan-Nxki (T-DXd) as a Subsequent Line of Therapy in HER2-Positive Metastatic Castration-Resistant Prostate Adenocarcinoma

PHASE2 · Washington D.C. Veterans Affairs Medical Center · NCT06610825

This study is testing a new drug called Enhertu to see if it can help people with a specific type of advanced prostate cancer who haven't had success with other treatments.

Quick facts

PhasePHASE2
Study typeInterventional
Enrollment60 (estimated)
Ages18 Years and up
SexMale
SponsorWashington D.C. Veterans Affairs Medical Center (fed)
Drugs / interventionschemotherapy
Locations1 site (Washington D.C., District of Columbia)
Trial IDNCT06610825 on ClinicalTrials.gov

What this trial studies

This Phase II clinical trial evaluates the efficacy and safety of Enhertu in patients with HER2-positive metastatic castration-resistant prostate cancer (mCRPC) who have progressed on prior androgen deprivation therapy and novel hormonal agents. The open-label, multi-center study will enroll 60 participants who are either not candidates for or have refused taxane-based chemotherapy. The primary focus is on objective response rates, while secondary endpoints include safety, progression-free survival, overall survival, and quality of life measures.

Who should consider this trial

Good fit: Ideal candidates include men with pathologically confirmed adenocarcinoma of the prostate, diagnosed with mCRPC, and who have documented progression on prior therapies.

Not a fit: Patients with a history of interstitial lung disease or those who have previously received HER2 targeted therapy may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with HER2-positive mCRPC who have limited treatment choices.

How similar studies have performed: Other studies have shown promising results with HER2-targeted therapies in similar contexts, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Pathologically confirmed adenocarcinoma of the prostate
* Diagnosis of mCRPC
* Documented progression on androgen deprivation and novel hormonal agents, with or without progression on taxane containing regimen
* Ongoing ADT to maintain serum testosterone levels below 50 ng/dL
* Formalin fixed paraffin embedded tumor tissue for HER2 immunohistochemistry
* Life expectancy 6 months
* ECOG 0 or 1
* LVEF at least 50%
* Adequate Blood Clotting function
* Adequate Organ and Bone Marrow function
* Adequate Renal function
* Adequate Hepatic function

Exclusion Criteria:

* History of interstitial lung disease or pneumonitis requiring steroids
* Significant coronary vascular disease
* Previous exposure to HER2 targeted therapy

Where this trial is running

Washington D.C., District of Columbia

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Prostate Cancer Metastatic, Prostate Cancer, CRPC, prostate cancer, metastatic prostate cancer, Enhertu, HER2 positive, Trastuzumab deruxtecan

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.