Comparing two types of radiation therapy for prostate cancer recurrence after surgery
Official title: Comparison of Salvage Hypofractionated Accelerated Versus Standard Radiotherapy for Biochemical Recurrence After Radical Prostatectomy (SHARE Trial): a Prospective, Randomized Controlled, Open-label, Multi Center, Superiority Study
Run by Asan Medical Center · NCT03920033 · Data updated 2026-11-12
This study is testing whether a new type of radiation therapy works better than the standard treatment for men whose prostate cancer has come back after surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 20 Years and up |
| Sex | Men only |
| Enrollment | 288 (estimated) |
| Sponsor | Asan Medical Center Academic / other |
| Drugs / interventions | radiation |
| Locations | 2 sites (Seoul and 1 other locations) |
| Status | Recruiting |
| Started | May 1, 2019 |
| Main results expected | January 1, 2022 |
| Study ends | January 1, 2027 |
| Registry record updated | January 20, 2021 |
| Trial ID | NCT03920033 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are men with intermediate- or high-risk prostate cancer who have experienced biochemical recurrence after radical prostatectomy.
✕Probably not a fit
Patients with clinically gross recurrent tumors, distant metastasis, or a history of pelvic irradiation 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 clinical trial investigates the effectiveness of hypofractionated, accelerated high dose radiation therapy compared to standard radiation therapy in patients who have experienced biochemical recurrence of prostate cancer following radical prostatectomy. Participants will be randomly assigned to receive either 65 Gy in 26 fractions or 66 Gy in 33 fractions of radiation. The study aims to determine which treatment offers better biochemical control and to assess the associated toxicity and quality of life for patients. Stratification factors include risk groups, androgen deprivation therapy, and PSA levels prior to treatment.
Why it matters
Potential benefit: If successful, this study could provide a more effective radiation therapy option for patients with recurrent prostate cancer, potentially improving their long-term outcomes.
How similar studies have gone: Other studies have shown promising results with hypofractionated radiation therapy, suggesting potential benefits over standard approaches, but this specific comparison is novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Pathologically confirmed intermediate- or high-risk prostate cancer * Biochemical recurrence after radical prostatectomy (Definition: Serial elevation of PSA over 0.2 ng/mL and \<=1.0 ng/mL) * ECOG performance status 0-1 * Appropriate values of blood tests within 6 months after enrollment Absolute neutrophil count (ANC) ≥ 1500 cells/mm3 Platelets ≥ 50,000 cells/mm3 Hemoglobin ≥ 8.0 g/dl * Appropriate values of kidney function within 6 months after enrollment Creatinine \< 2.0 ng/dL * Appropriate values of liver function within 6 months after enrollment total bilirubin \< 1.5 X maximum normal value alanine aminotransferase or aspartate aminotransferase \< 2.5 X maximum normal value Exclusion Criteria: * Clinically gross recurrent tumor * Presence of distant metastasis * Presence of pelvic LN metastasis * History of pelvic irradiation * History of cryotherapy or brachytherapy for prostate cancer * Double primary cancer other than skin/thyroid cancer * Combined serious morbidity
Where it's running
-
Asan Medical Center
Seoul, South Korea Recruiting -
Samsung Medical Center
Seoul, South Korea Recruiting
Study contacts
- Principal investigator: Young Seok Kim, M.D., Ph.D. — Asan Medical Center
- Study coordinator: Young Seok Kim, M.D., Ph.D.
- Email: ysk@amc.seoul.kr
- Phone: 82 2 3010 5614
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Combining salvage radiotherapy and androgen deprivation therapy with rezvilutamide for prostate cancer recurrence
This study is testing if adding a new drug called rezvilutamide to hormone therapy and radiation can help men whose prostate cancer has come back after surgery.
-
Comparing two types of radiation therapy for prostate cancer treatment
This study is testing whether a new type of radiation therapy for prostate cancer works better and is safer than a different method, while also looking at how well the treatment is tolerated by patients.
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Comparing short and long-term hormone therapy with radiation for prostate cancer
This study tests whether short-term or long-term hormone therapy combined with radiation is better for men with prostate cancer who have had a recurrence after surgery.
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Using rezvilutamide for prostate cancer recurrence after surgery
This study is testing if a new drug called rezvilutamide, used with hormone therapy and radiation, can help men whose prostate cancer has come back after surgery.
-
Determining the best dose of lisinopril to prevent urinary issues after prostate cancer radiotherapy
This study is testing the best dose of lisinopril to see if it can help men with prostate cancer avoid urinary problems after radiation treatment.
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Evaluating the impact of MR-guided radiation therapy on cancer treatment outcomes
This study is testing how using a special type of radiation therapy with real-time imaging can improve treatment results and quality of life for adults with cancer.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.