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Active, not recruiting Phase 3 Interventional

Study of Hypo-fractionated Proton Radiation for Low Risk Prostate Cancer

ClinicalTrials.gov ID: NCT01230866

Public ClinicalTrials.gov record NCT01230866. 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.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 8:27 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase III Prospective Randomized Trial of Standard-fractionation vs. Hypo-fractionation With Proton Radiation Therapy for Low Risk Adenocarcinoma of the Prostate

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to compare the effects (good and bad) on patients with prostate cancer by comparing the standard dose of radiation therapy (44 treatments over 8½-9 weeks) with a higher daily dose of radiation (5 treatments over 1-2 weeks) to see if the effects of the treatments are similar or better.

Study identification

NCT ID
NCT01230866
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 3
Lead sponsor
Proton Collaborative Group
Network
Enrollment
150 participants

Conditions and interventions

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
Nov 2010 (Type not available)
Primary completion
Dec 2027 (Estimated)
Completion
Not listed
Last update posted
Sep 29, 2026

Started 2010

United States locations

U.S. sites
5
U.S. states
5
U.S. cities
5
Facility City State ZIP Site status
Mayo Clinic Cancer Center Phoenix Arizona 85054 —
Northwestern Medicine Chicago Proton Center Warrenville Illinois 60555 —
Maryland Proton Treatment Center Baltimore Maryland 21201 —
Oklahoma Proton Center Oklahoma City Oklahoma 73142 —
Hampton University Proton Therapy Institute Hampton Virginia 23666 —

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 NCT01230866, 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 Sep 29, 2026 · Synced Oct 19, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01230866 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →