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Recruiting NCT05350475

NCT05350475 Protons Vs. Photons for High-risk Prostate Cancer

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Clinical Trial Summary
NCT ID NCT05350475
Status Recruiting
Phase
Sponsor University of Aarhus
Condition Prostate Cancer
Study Type INTERVENTIONAL
Enrollment 400 participants
Start Date 2022-03-01
Primary Completion 2027-03-01

Eligibility & Interventions

Sex Male only
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Proton therapyPhoton therapy

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

This trial targets 400 participants in total. It began in 2022-03-01 with a primary completion date of 2027-03-01.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this study is to assess late gastro-intestinal side-effects comparing proton therapy to photon therapy in high-risk prostate cancer patients receiving whole pelvic irradiation.

Eligibility Criteria

Inclusion Criteria: * Histologically verified localized/locally advanced prostate cancer T1-3bN0-1M0 (TNM 8th edition). A clinical T4 is allowed if it is because of invasion into the bladder neck. * Adenocarcinoma (mixed histology allowed as long as the adenocarcinoma component comprise more than 50%) * Indication for elective lymph node irradiation * PSA \< 100 ng/mL * Age ≥18 years * Performance status 0-1 * Life expectancy ≥ 10 years * Able to understand and comply with the treatment protocol * No evidence of inflammatory bowel disease Ability to adhere to procedures for study and follow-up * Signed informed consent to participate in the study Exclusion Criteria: * No previous treatment for prostate cancer * Hip-prostheses * Other metal devices in the pelvic region (except fiducials) * Previous major abdominal/rectal surgery * Any other malignancy the last five years except for basal or squamous cell skin cancer * Unable to understand patient information or comply with treatment and safety instructions * Unable to read and understand patient information due to cognitive disabilities or language (Danish).

Contact & Investigator

Central Contact

Stine Elleberg Petersen, MD, Ph.D

✉ stinpete@rm.dk

📞 +4529474408

Principal Investigator

Stine Elleberg Petersen, MD, Ph.D

PRINCIPAL INVESTIGATOR

Danish Centre for Particle Therapy, Aarhus University Hospital

Frequently Asked Questions

Who can join the NCT05350475 clinical trial?

This trial is open to male participants only, aged 18 Years or older, studying Prostate Cancer. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT05350475 currently recruiting?

Yes, NCT05350475 is actively recruiting participants. Contact the research team at stinpete@rm.dk for enrollment information.

Where is the NCT05350475 trial being conducted?

This trial is being conducted at Copenhagen, Denmark, Herlev, Denmark, Aarhus, Denmark, Aalborg, Denmark and 3 additional locations.

Who is sponsoring the NCT05350475 clinical trial?

NCT05350475 is sponsored by University of Aarhus. The principal investigator is Stine Elleberg Petersen, MD, Ph.D at Danish Centre for Particle Therapy, Aarhus University Hospital. The trial plans to enroll 400 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology