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Recruiting Phase 2 NCT04695782

NCT04695782 Pencil Beam Proton Therapy for Pelvic Recurrences in Rectal Cancer Patients Previously Treated With Radiotherapy

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Clinical Trial Summary
NCT ID NCT04695782
Status Recruiting
Phase Phase 2
Sponsor University of Aarhus
Condition Rectal Cancer Recurrent
Study Type INTERVENTIONAL
Enrollment 65 participants
Start Date 2020-10-10
Primary Completion 2025-10-31

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Pencil beam proton radiotherapy

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.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 65 participants in total. It began in 2020-10-10 with a primary completion date of 2025-10-31.

⚠ 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

Study design: A prospective phase II, non-randomized observational study of dose-escalated pencil beam proton therapy re-irradiation for pelvic recurrences from rectal cancer. Re-irradiation is either a part of neo-adjuvant treatment or as a definitive treatment strategy for un-resectable recurrences.

Eligibility Criteria

Inclusion Criteria: * • Locally recurrent rectal cancer. * Bioptically verified (adenocarcinoma ) * Available dose plan from primary radiotherapy * Previous pelvic RT (\>30Gy EQD2) * Evaluated in MDT-conferences (Herlev, Aarhus) * Age\>18 years * PS 0-2 * Adequate organ function * Informed consent Exclusion Criteria: * Non-resectable distant metastases (PET-CT) * Unable to undergo MRI, PET-CT * Inability to attend full course radiotherapy and follow up in the out patient clinic.

Contact & Investigator

Central Contact

Camilla Kronborg, MD, PhD

✉ camkro@rm.dk

📞 +45 78450000

Frequently Asked Questions

Who can join the NCT04695782 clinical trial?

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

What phase is the NCT04695782 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT04695782 currently recruiting?

Yes, NCT04695782 is actively recruiting participants. Contact the research team at camkro@rm.dk for enrollment information.

Where is the NCT04695782 trial being conducted?

This trial is being conducted at Aarhus, Denmark.

Who is sponsoring the NCT04695782 clinical trial?

NCT04695782 is sponsored by University of Aarhus. The trial plans to enroll 65 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