Clinical trialNCT01255748RecruitingObservational

Registry Study for Radiation Therapy Outcomes

SponsorProton Collaborative GroupEnrollment50,000Neoplasms

View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Carlos Vargas, MD
Proton Collaborative Group
Study Chair
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

29 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Mayo Clinic
Scottsdale, Arizona, United States
Recruiting
Proton Center of Arkansas
Little Rock, Arkansas, United States
Leslie Harrell, MD
Recruiting
California Protons Cancer Therapy Center
San Diego, California, United States
James Urbanic, MD
Recruiting
South Florida Proton Therapy Institute
Delray Beach, Florida, United States
James Snider, MD
Recruiting
Southwest Florida Proton Center
Fort Myers, Florida, United States
Shannon MacDonald, MD
Recruiting
Ackerman Cancer Center
Jacksonville, Florida, United States
Ryan Perkins, MD
Recruiting
Dwoskin Proton Therapy Center
Miami, Florida, United States
Matthew Abramowitz, MD
Recruiting
Miami Cancer Institute
Miami, Florida, United States
Michael Chuong, MD
Recruiting
Orlando Health Cancer Institute
Orlando, Florida, United States
Naren Ramakrishna, MD, Ph. D
Recruiting
Emory Proton Therapy Center
Atlanta, Georgia, United States
Mark McDonald, MD
Recruiting
Osf Healthcare Cancer Institute
Peoria, Illinois, United States
Timothy Smile, MD
Recruiting
Northwestern Medicine Chicago Proton Center
Warrenville, Illinois, United States
Arpi Thukral, MD
Recruiting
University of Kansas Proton Therapy Center
Kansas City, Kansas, United States
Ronny Rotondo, MD
Recruiting
Kansas City Proton Institute
Overland Park, Kansas, United States
James Coster, MD
Recruiting
Willis-Knighton Cancer and Proton Therapy Center
Shreveport, Louisiana, United States
Lane Rosen, MD
Recruiting
Maryland Proton Treatment Center
Baltimore, Maryland, United States
Mark Mishra, MD
Recruiting
Mclaren Proton Therapy Center
Flint, Michigan, United States
Brian Yeh, MD
Recruiting
Mercy David C. Pratt Cancer Center
St Louis, Missouri, United States
Amit Roy, MD
Recruiting
Procure Proton Therapy Center
Somerset, New Jersey, United States
Henry Tsai, MD
Recruiting
New York Proton Center
New York, New York, United States
Charles Simone, MD, FACRO
Recruiting
Atrium Health Levine Cancer Proton & Advanced Radiation Center
Charlotte, North Carolina, United States
Roshan Prabhu, MD
Recruiting
University of Cincinnati Medical Center
Cincinnati, Ohio, United States
Luke Pater, MD
Recruiting
Oklahoma Proton Center
Oklahoma City, Oklahoma, United States
John Chang, MD
Recruiting
Tennessee Oncology Proton Center
Franklin, Tennessee, United States
James Gray, MD
Recruiting
Thompson Proton Center
Knoxville, Tennessee, United States
Ryan Grover, MD
Recruiting
Texas Center for Proton Therapy
Irving, Texas, United States
Andrew Lee, MD
Recruiting
Inova Schar Cancer Institute
Fairfax, Virginia, United States
Gopal Bajaj, MD
Recruiting
Hampton University Proton Therapy Institute
Hampton, Virginia, United States
Christopher Sinesi, MD
Recruiting
University of Washington
Seattle, Washington, United States
Annemarie Shepherd, MD
Recruiting

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 30 Jun 2009
Primary completion: 30 Jun 2039
Completion: —
Last update posted: 10 Jul 2026
Registered enrollment: 50,000
Registry id: NCT01255748

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.