NCT01950351

Brief Summary

This phase II trial studies the side effects and how well hypofractionated proton beam radiation therapy works in treating patients with prostate cancer that has not spread to nearby lymph nodes or to other parts of the body. Specialized radiation therapy, such as proton beam radiation therapy, that delivers a high dose of radiation directly to the tumor may kill more tumor cells and cause less damage to normal tissue.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
241

participants targeted

Target at P75+ for phase_1

Timeline
25mo left

Started Oct 2013

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress86%
Oct 2013Jun 2028

First Submitted

Initial submission to the registry

September 23, 2013

Completed
2 days until next milestone

First Posted

Study publicly available on registry

September 25, 2013

Completed
15 days until next milestone

Study Start

First participant enrolled

October 10, 2013

Completed
14.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2028

Last Updated

December 22, 2025

Status Verified

December 1, 2025

Enrollment Period

14.7 years

First QC Date

September 23, 2013

Last Update Submit

December 18, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Cumulative incidence of late grade 2 or greater gastrointestinal (GI) toxicity

    The cumulative incidence of late grade 2 or greater GI toxicity will be estimated with a 95% confidence interval.

    Up to 2 years post-treatment

Secondary Outcomes (5)

  • Rates of acute toxicity

    Within 90 days of treatment initiation

  • Rate of late toxicity

    Up to 5 years post-treatment

  • Change in health related quality of life (HRQOL) as assessed by the Expanded Prostate Cancer Index Composite (EPIC) Utilization of Sexual Medications/Devices, and Medical history/conditions questionnaire

    Baseline to up to 5 years

  • Incidence of rising prostate-specific antigen (PSA)

    At 5 years

  • Rate of local failure by biopsy

    Up to 5 years

Study Arms (1)

Treatment (proton beam radiation therapy)

EXPERIMENTAL

Patients undergo proton beam radiation therapy in 15 fractions over 5-6 weeks.

Other: Laboratory Biomarker AnalysisRadiation: Proton Beam Radiation TherapyOther: Quality-of-Life Assessment

Interventions

Correlative studies

Treatment (proton beam radiation therapy)

Undergo proton beam radiation therapy

Also known as: PBRT, Proton Radiation Therapy
Treatment (proton beam radiation therapy)

Ancillary studies

Also known as: Quality of Life Assessment
Treatment (proton beam radiation therapy)

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Histologically confirmed diagnosis of adenocarcinoma of the prostate within one year of study entry; evaluation can happen outside of MD Anderson as long as histological confirmation takes place at MD Anderson
  • History/physical examination with digital rectal examination of the prostate within 90 days prior to registration
  • Histological evaluation of prostate biopsy with assignment of a Gleason score to the biopsy material demonstrating Gleason score 2-7 within 365 days of registration
  • Clinical stage T1-2b (American Joint Committee on Cancer \[AJCC\] 7th edition) and PSA \< 20 ng/mL within 90 days prior to registration; PSA should not be obtained within 10 days after prostate biopsy
  • Zubrod performance status 0-1 within 90 days prior to registration
  • Patient must be able to provide study-specific informed consent prior to study entry
  • Willingness and ability to complete the EPIC questionnaire

You may not qualify if:

  • Prior or concurrent invasive malignancy (except non-melanomatous skin cancer or lymphomatous/hematogenous malignancy) unless continually disease free for a minimum of 5 years
  • Evidence of distant metastases
  • Regional lymph node involvement
  • Previous prostatectomy, cryosurgery, or high intensity focused ultrasound (HIFU) for prostate cancer
  • Previous pelvic radiation or prostate brachytherapy
  • Active and severe medical co-morbidity defined as follows: unstable angina and/or congestive heart failure requiring hospitalization within the last 6 months, transmural myocardial infarction within the last 6 months, acute bacterial or fungal infection requiring intravenous antibiotics at the time of registration, chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of registration, hepatic insufficiency resulting in clinical jaundice, active inflammatory bowel disease (Crohn's disease or ulcerative colitis), diagnosed connective tissue disorder, or congenital coagulation defects (patients on medical therapy with Coumadin or other blood thinning agents are eligible for participation)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

M D Anderson Cancer Center

Houston, Texas, 77030, United States

Location

Related Links

MeSH Terms

Interventions

Proton TherapyProtons

Intervention Hierarchy (Ancestors)

Heavy Ion RadiotherapyRadiotherapyTherapeuticsCations, MonovalentCationsIonsElectrolytesInorganic ChemicalsHydrogenElementsGasesNucleonsElementary ParticlesPhysical Phenomena

Study Officials

  • Steven J Frank

    M.D. Anderson Cancer Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 23, 2013

First Posted

September 25, 2013

Study Start

October 10, 2013

Primary Completion (Estimated)

June 1, 2028

Study Completion (Estimated)

June 1, 2028

Last Updated

December 22, 2025

Record last verified: 2025-12

Locations