Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 and up Men only

Testosterone therapy for men with low testosterone and localized prostate cancer on active surveillance

Official title: Investigating the Effect of Testosterone Replacement Therapy Among Hypogonadal Men With Localized Prostate Cancer on Active Surveillance

Run by Roswell Park Cancer Institute · NCT06733350 · Data updated 2026-11-12

This study is testing if testosterone therapy can help men with low testosterone and localized prostate cancer feel better and stay safe while they are being monitored for their cancer.

Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years and up
SexMen only
Enrollment600 (estimated)
SponsorRoswell Park Cancer Institute
Academic / other
Locations1 site (Buffalo, New York)
StatusRecruiting
StartedJanuary 15, 2025
Main results expectedJanuary 15, 2029
Study endsJanuary 15, 2029
Registry record updatedMay 14, 2026
Trial IDNCT06733350 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are men aged 18 and older with localized prostate cancer on active surveillance and low testosterone levels.

Probably not a fit

Patients with advanced prostate cancer, contraindications to TRT, or those with high-risk cancer profiles may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This phase IV trial investigates the effects of testosterone replacement therapy (TRT) on hypogonadal men with localized prostate cancer who are undergoing active surveillance. The study aims to assess the impact of TRT on cancer progression, quality of life, and the likelihood of discontinuing active surveillance due to adverse effects. Participants will be monitored through regular blood tests, MRI scans, and questionnaires to evaluate changes in symptoms and cancer markers over time. The trial seeks to determine if TRT can improve the quality of life for these patients without exacerbating their cancer.

Why it matters

Potential benefit: If successful, this study could enhance the quality of life for hypogonadal men with localized prostate cancer by alleviating symptoms associated with low testosterone.

How similar studies have gone: While TRT in prostate cancer patients has been approached cautiously, this study explores a novel application of TRT in a specific patient population under active surveillance.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Men aged ≥ 18 years
* Men with localized prostate cancer are eligible for active surveillance (National Comprehensive Cancer Network \[NCCN\] very low, low, and intermediate favorable risk group)
* Participant must understand the investigational nature of this study and sign an independent ethics committee/institutional review board approved written informed consent form prior to receiving any study related procedure

Exclusion Criteria:

* Patients with NCCN intermediate unfavorable, high risk, or very high-risk localized prostate cancer
* For men being considered for Group 2 (TRT), Patients with contraindications to TRT, which include,

  * Locally advanced or metastatic prostate cancer
  * Male breast cancer
  * Men with an active desire to have children
  * Hematocrit levels \> 54% or baseline hematocrit of 48-50%
  * Uncontrolled or poorly controlled congestive heart failure
  * IPSS (International Prostate Symptom Score) score \> 19
  * Family history of venous thromboembolism
* Unwilling or unable to follow protocol requirements
* Any condition which in the investigator's opinion deems the participant an unsuitable candidate to participate in the study

Where it's running

  • Roswell Park Cancer Institute
    Buffalo, New York, United States
    Recruiting

Study contacts

  • Principal investigator: Ahmed Aly — Roswell Park Cancer Institute

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.