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Localized Prostate CarcinomaPhase 4NCT06733350

Testosterone Replacement Therapy for the Treatment of Low Testosterone in Hypogonadal Men With Localized Prostate Cancer on Active Surveillance

A Phase 4 study testing Biopsy of Prostate, Biospecimen Collection and Magnetic Resonance Imaging in people with Localized Prostate Carcinoma and Stage I Prostate Cancer AJCC v8, run by Roswell Park Cancer Institute at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This phase IV trial studies the effects of testosterone replacement therapy (TRT) on treatment outcomes in hypogonadal men with prostate cancer that has not spread to other parts of the body (localized) and who are on active surveillance (AS). Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
Biopsy of Prostate, Biospecimen Collection and Magnetic Resonance Imaging
Could I receive a placebo?
No, everyone receives an active treatment
How many people
600 participants
Where
1 siteUnited States
Study dates
15 Jan 2025to 15 Jan 2029
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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

Who cannot join

  • 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%
Show all 11Show fewer
  • 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

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site, 1 recruiting
  • Roswell Park Cancer Institute

    Buffalo, New York, 14263

    Ahmed Aly, 716-845-6844, ahmed.aly@roswellpark.org

    Ahmed Aly

    Recruiting

Other trials in United States

About this study

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

This phase IV trial studies the effects of testosterone replacement therapy (TRT) on treatment outcomes in hypogonadal men with prostate cancer that has not spread to other parts of the body (localized) and who are on active surveillance (AS). AS in prostate cancer involves closely watching the patient's condition through regular physical exams and blood tests, but not giving treatment unless there are changes in test results. It can be a practical alternative to treatment in localized prostate cancer. Hypogonadal men have low testosterone associated with symptoms such as low libido and erectile problems. TRT can be used to treat hypogonadism by increasing testosterone levels, which may improve associated symptoms. TRT is often not used in men with prostate cancer due to concerns it may lead to the cancer growing or spreading. This may lead hypogonadal men to have a poor quality of life or to discontinue AS. TRT may improve treatment and quality of life outcomes in hypogonadal men with localized prostate cancer on active surveillance.

Read the detailed description

PRIMARY OBJECTIVES:

  1. To investigate the impact of TRT on Gleason grade progression in hypogonadal men with localized prostate cancer on active surveillance, and the association between TRT and the likelihood of discontinuation of active surveillance in the same population.

II. To assess the impact of TRT on the quality of life, including changes in the International Prostate Symptom Score (IPSS) and the association with sexual health measured by the Sexual Health Inventory for Men (SHIM), in hypogonadal men with localized prostate cancer on active surveillance.

SECONDARY OBJECTIVES:

  1. To examine the influence of TRT on radiographic progression in hypogonadal men with localized prostate cancer on active surveillance, by assessing changes in the size of abnormal magnetic resonance imaging (MRI) lesions.

II. To evaluate the association between TRT and biochemical progression by analyzing changes in prostate-specific antigen (PSA) levels over time in the studied population.

III. To systematically monitor and document TRT-related adverse events and complications, and concurrently assess the association between TRT and the likelihood of discontinuation due to adverse events in the studied population.

OUTLINE: Patients are assigned to 1 of 3 groups.

GROUP 1: Patients with normal testosterone level undergo standard AS for up to 5 years in the absence of disease progression. Patients undergo blood sample collection and MRI throughout the trial and may undergo prostate biopsy on study.

GROUP 2: Patients with low testosterone level associated with hypogonadal symptoms and willing to receive TRT receive testosterone per treating physician discretion via injection, gel, lotion, or transdermal patch and undergo standard AS for up to 5 years in the absence of disease progression or unacceptable toxicity. Patients undergo blood sample collection and MRI throughout the trial and may undergo prostate biopsy on study.

GROUP 3: Patients with low testosterone level with no symptoms, or low testosterone level associated with hypogonadal symptoms but declined TRT undergo standard AS for up to 5 years in the absence of disease progression. Patients undergo blood sample collection and MRI throughout the trial and may undergo prostate biopsy on study.

Being tested
Biopsy of Prostate, Biospecimen Collection, Magnetic Resonance Imaging, Patient Observation, Questionnaire Administration
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Biopsy of ProstateProcedure or surgery

    Also called Prostate Biopsy, Prostatic Biopsy

    Undergo prostate biopsy

  • Biospecimen CollectionProcedure or surgery

    Also called Biological Sample Collection, Biospecimen Collected, Specimen Collection

    Undergo blood sample collection

  • Magnetic Resonance ImagingProcedure or surgery

    Also called Magnetic Resonance, Magnetic Resonance Imaging (MRI), Magnetic resonance imaging (procedure), Magnetic Resonance Imaging Scan

    Undergo MRI

  • Patient ObservationOther

    Also called Active Surveillance, deferred therapy, expectant management, Observation

    Undergo standard AS

  • Questionnaire AdministrationOther

    Ancillary studies

  • Therapeutic TestosteroneDrug

    Also called Mertestate, Testoderm, Testolin, Testosterone

    Given via injection, gel, lotion, or transdermal patch

Study groups in NCT06733350
Study groupRoleWhat they receive
Group 1 (AS)Active comparatorPatients with normal testosterone level undergo standard AS for up to 5 years in the absence of disease progression. Patients undergo blood sample collection and MRI throughout the trial and may undergo prostate biopsy on study.
Receives: Procedure: Biopsy of Prostate; Procedure: Biospecimen Collection; Procedure: Magnetic Resonance Imaging; Other: Patient Observation; Other: Questionnaire Administration
Group 2 (TRT, AS)ExperimentalPatients with low testosterone level associated with hypogonadal symptoms and willing to receive TRT receive testosterone per treating physician discretion via injection, gel, lotion, or transdermal patch and undergo standard AS for up to 5 years in the absence of disease progression or unacceptable toxicity. Patients undergo blood sample collection and MRI throughout the trial and may undergo prostate biopsy on study.
Receives: Procedure: Biopsy of Prostate; Procedure: Biospecimen Collection; Procedure: Magnetic Resonance Imaging; Other: Patient Observation; Other: Questionnaire Administration; Drug: Therapeutic Testosterone
Group 3 (AS)Active comparatorPatients with low testosterone level with no symptoms, or low testosterone level associated with hypogonadal symptoms but declined TRT undergo standard AS for up to 5 years in the absence of disease progression. Patients undergo blood sample collection and MRI throughout the trial and may undergo prostate biopsy on study.
Receives: Procedure: Biopsy of Prostate; Procedure: Biospecimen Collection; Procedure: Magnetic Resonance Imaging; Other: Patient Observation; Other: Questionnaire Administration

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Gleason grade progression

    The Gleason grade progression will be summarized by group using standard Kaplan-Meier methods, where estimates of the median or specified rates will be obtained. Comparisons will be made between groups using the log-rank test. As exploratory analyses, Cox regression models may be considered to adjust for relevant demographic or clinical confounders. The Bonferroni method will be used to control the family-wise error rate at 0.10.

    Measured: From start of active surveillance until any progression in primary, secondary, or a combination of Gleason grades, definitive treatment, or last follow-up, assessed up to 5 years

  2. Discontinuation of active surveillance

    The discontinuation of active surveillance will be summarized by group using standard Kaplan-Meier methods, where estimates of the median or specified rates will be obtained. Comparisons will be made between groups using the log-rank test. As exploratory analyses, Cox regression models may be considered to adjust for relevant demographic or clinical confounders. The Bonferroni method will be used to control the family-wise error rate at 0.10.

    Measured: From start of active surveillance until discontinuation of active surveillance due to any cause or last follow-up, assessed up to 5 years

  3. International Prostate Symptom Score (Quality-of-life)

    Will be modeled as a function of group, timepoint, their two-way interaction, and a random subject effect using linear mixed models. Tests about the appropriate contrasts of model estimates will be used to compare mean changes in quality of life between groups at specified timepoints. All model assumptions will be verified graphically, and transformations applied as appropriate. As exploratory analyses, additional models may be considered to adjust for relevant demographic or clinical confounders. The Bonferroni method will be used to control the family-wise error rate at 0.10.

    Measured: Up to 5 years

  4. Sexual Health Inventory for Men score (Quality-of-life)

    Will be modeled as a function of group, timepoint, their two-way interaction, and a random subject effect using linear mixed models. Tests about the appropriate contrasts of model estimates will be used to compare mean changes in quality of life between groups at specified timepoints. All model assumptions will be verified graphically, and transformations applied as appropriate. As exploratory analyses, additional models may be considered to adjust for relevant demographic or clinical confounders. The Bonferroni method will be used to control the family-wise error rate at 0.10.

    Measured: Up to 5 years

Secondary outcomes (5)
  1. Radiographic progression

    Will assess change in the size of abnormal magnetic resonance imaging (MRI) lesions, if any. Will utilize the PRECISE scoring system, which considers factors such as changes in lesion volume or appearance on MRI and can provide a standardized and objective method for assessing progression. Will be summarized by group using standard Kaplan-Meier methods, where estimates of the median or specified rates will be obtained. Comparisons will be made between groups using the log-rank test.

    Measured: From start of active surveillance until radiographic progression, definitive treatment, or last follow-up, assessed up to 5 years

  2. Biochemical progression

    Will be assessed by change in the PSA over time. Will be summarized by group using standard Kaplan-Meier methods, where estimates of the median or specified rates will be obtained. Comparisons will be made between groups using the log-rank test.

    Measured: From the start of active surveillance until prostate specific antigen (PSA) progression, definitive treatment, or last follow-up, assessed up to 5 years

  3. Incidence of testosterone replacement therapy (TRT)-related adverse events

    Will be assessed in Group 2 patients. Will be summarized by attribution and grade using frequencies and relative frequencies.

    Measured: Up to 5 years

  4. Incidence of TRT-related complications

    Will be assessed in Group 2 patients. Will be summarized by attribution and grade using frequencies and relative frequencies.

    Measured: Up to 5 years

  5. TRT discontinuation

    Will be assessed in Group 2 patients.

    Measured: Up to 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Dec 2024
  2. Study start15 Jan 2025
  3. Primary completion15 Jan 2029 (estimated)
  4. Study completion15 Jan 2029 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
600 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06733350
Sponsor's protocol ID
I-3920923
Other IDs
NCI-2024-09551, I-3920923
Status last verified
May 2026
First submitted
10 Dec 2024
Last updated
14 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Biopsy of Prostate, Biospecimen Collection and Magnetic Resonance Imaging in people with Localized Prostate Carcinoma and Stage I Prostate Cancer AJCC v8, run by Roswell Park Cancer Institute at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 14 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Gleason grade progression (time frame: From start of active surveillance until any progression in primary, secondary, or a combination of Gleason grades, definitive treatment, or last follow-up, assessed up to 5 years). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 May 2026.

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