Study to Detect Changes in Urinary and Gut Microbiome During Androgen Deprivation Therapy and Radiation Therapy in Patients With Prostate Cancer
Public ClinicalTrials.gov record NCT04775355. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Pilot Study to Describe Changes in Urinary and Gut Microbiome During Androgen Deprivation and Radiation Therapy for Prostate Cancer
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study collects urine and stool samples to determine the ability to identify changes in the microbiome (bacteria, fungi, and viruses that live in the gut and urine) of patients with prostate cancer during androgen deprivation therapy and radiation therapy. Radiation therapy has the potential to harm the genitourinary area or the bowel, causing a feeling of urgency or increased inflammation in the area. The radiation therapy is designed to not irradiate the bowel and bladder areas, but there is still some radiation exposure. The gut microbiome has been associated with differences in inflammation as well as producing molecules that influence healing. The purpose of this study is to see whether the microbiome may contribute to the healing of the organs exposed to radiation. Information learned from this study may help researchers discover a new risk factor that could be manipulated to improve the quality of life in patients with prostate cancer.
Study identification
- NCT ID
- NCT04775355
- Recruitment status
- Recruiting
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 30 participants
Conditions and interventions
Conditions
Interventions
- Biospecimen Collection Procedure
- Electronic Health Record Review Other
- Quality-of-Life Assessment Other
- Questionnaire Administration Other
Procedure · Other
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- Male
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 13, 2021
- Primary completion
- Nov 30, 2026
- Completion
- Nov 30, 2026
- Last update posted
- Aug 18, 2026
2021 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| City of Hope Medical Center | Duarte | California | 91010 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04775355, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 18, 2026 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04775355 live on ClinicalTrials.gov.