Safety and Efficacy Study of Hypofractionated Radiotherapy and Androgen Deprivation Therapy for Prostate Cancer

NCT ID: NCT01505075

Last Updated: 2020-11-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1/PHASE2

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-09-30

Study Completion Date

2021-09-30

Brief Summary

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The purpose of this study is to determine the safety and efficacy of a short course of radiotherapy (40Gy/5 fractions/29 days) for the treatment of high risk prostate cancer currently being managed with primary androgen deprivation therapy (PADT).

Detailed Description

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Primary Endpoints:

* Acute gastrointestinal (GI) and genitourinary (GU) Common Terminology Criteria for Adverse Events (CTCAE) v3.0 toxicities

Secondary Endpoints:

* Late GI and GU Radiation Therapy Oncology Group (RTOG) toxicities
* Biochemical disease-free survival
* Biopsy positive rate at 3 years
* Quality of life using the Expanded Prostate Cancer Index Composite (EPIC) questionnaire
* Develop a biobank of DNA and serum extracted from blood and urine to analyze and develop new biomarkers for prostate cancer progression or susceptibility to severe toxicity

Conditions

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Prostate Cancer

Keywords

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prostatic neoplasms radiotherapy hypofractionated high risk prostate cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Hypofractionated radiation

40 Gy in 5 fractions over 29 to prostate; 30 Gy in 5 fractions over 29 days to seminal vesicles

Group Type EXPERIMENTAL

Hypofractionated radiation

Intervention Type RADIATION

40 Gy in 5 fractions to prostate, 30 Gy in 5 fractions to seminal vesicles; total treatment duration 29 days

Interventions

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Hypofractionated radiation

40 Gy in 5 fractions to prostate, 30 Gy in 5 fractions to seminal vesicles; total treatment duration 29 days

Intervention Type RADIATION

Other Intervention Names

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RapidArc

Eligibility Criteria

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Inclusion Criteria

* informed consent obtained
* men \> 18 years
* histologically confirmed prostate adenocarcinoma (centrally reviewed)
* high risk prostate cancer, defined as at least one of: clinical stage T3, or gleason score 8-10, or PSA \> 20ng/mL

Exclusion Criteria

* prior pelvic radiotherapy
* anticoagulation medication (if unsafe to discontinue for gold seed insertion)
* diagnosis of bleeding diathesis
* pelvic girth \> 40cm (to ensure visibility of gold seeds on electronic portal imaging)
* large prostate (\> 90cm3) on imaging
* severe lower urinary tract symptoms (International Prostate Symptom Score \>19 or nocturia \> 3)
* No evidence of castrate resistance (defined as PSA \< 3ng/mL while testosterone is \< 0.7nmol/L). Patients could have been on combined androgen blockade but are excluded if this was started due to PSA progression
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Sunnybrook Health Sciences Centre

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Andrew Loblaw, MD, FRCPC

Role: PRINCIPAL_INVESTIGATOR

Sunnybrook Health Sciences Centre

Suneil Jain, MD

Role: PRINCIPAL_INVESTIGATOR

[email protected]

Locations

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Odette Cancer Centre, Sunnybrook Health Sciences Centre

Toronto, Ontario, Canada

Site Status

Countries

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Canada

Other Identifiers

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043-2011

Identifier Type: -

Identifier Source: org_study_id