NCT03938649

Brief Summary

This is a phase 2 randomized study for High risk localized prostate cancer (T3 to T4 disease and/or PSA \> 20 and/or Gleason score ≥ 8) without evidence of distant and nodal metastasis. Patient will be randomized to:Arm 1

  • Conventional IMRT RapidArc IMRT to prostate and pelvic nodes. 76Gy to prostate, 70Gy to proximal 2/3 of seminal vesicles, and 50Gy to pelvic nodes (up to bifurcation of common iliac nodes).
  • 38 fractions of daily treatment, Monday to Friday or Arm 2 SBRT
  • RapidArc IMRT to prostate and pelvic nodes. 40Gy to prostate, 36.25Gy to proximal 2/3 of seminal vesicles, and 25Gy to pelvic nodes (up to bifurcation of common iliac nodes)
  • 5 fractions of weekly treatment. Once fraction per week. All patients will be given neoadjuvant and adjuvant androgen deprivation therapy (detail as below)

Trial Health

75
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for phase_2

Timeline
32mo left

Started May 2019

Longer than P75 for phase_2

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 Progress72%
May 2019Dec 2028

First Submitted

Initial submission to the registry

April 18, 2019

Completed
18 days until next milestone

First Posted

Study publicly available on registry

May 6, 2019

Completed
9 days until next milestone

Study Start

First participant enrolled

May 15, 2019

Completed
8.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2028

Last Updated

March 4, 2026

Status Verified

March 1, 2026

Enrollment Period

8.6 years

First QC Date

April 18, 2019

Last Update Submit

March 2, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • To compare acute toxicities between SBRT and conventional IMRT

    Toxicities will be assessed by AE CTC version 4 between 2 treatment arms

    4 years

Secondary Outcomes (5)

  • To compare health-related quality of life (HRQOL) between SBRT and conventional IMRT

    4 years

  • To compare the biochemical-failure free survival at 5 years

    5 years

  • To compare the progression-free survival at 5 years

    5 years

  • To compare the overall survival at 5 years

    5 years

  • To compare the late toxicities between 2 treatment arms

    5 years

Study Arms (2)

Conventional IMRT

EXPERIMENTAL

* RapidArc IMRT to prostate and pelvic nodes. 76Gy to prostate, 70Gy to proximal 2/3 of seminal vesicles, and 50Gy to pelvic nodes (up to bifurcation of common iliac nodes). * 38 fractions of daily treatment, Monday to Friday

Radiation: Conventional IMRT

SBRT

EXPERIMENTAL

* RapidArc IMRT to prostate and pelvic nodes. 40Gy to prostate, 36.25Gy to proximal 2/3 of seminal vesicles, and 25Gy to pelvic nodes (up to bifurcation of common iliac nodes) * 5 fractions of weekly treatment. Once fraction per week.

Drug: SBRT

Interventions

RapidArc IMRT to prostate and pelvic nodes. 76Gy to prostate, 70Gy to proximal 2/3 of seminal vesicles, and 50Gy to pelvic nodes (up to bifurcation of common iliac nodes). 38 fractions of daily treatment, Monday to Friday. All patients will be given neoadjuvant and adjuvant androgen deprivation therapy.

Conventional IMRT
SBRTDRUG

RapidArc IMRT to prostate and pelvic nodes. 40Gy to prostate, 36.25Gy to proximal 2/3 of seminal vesicles, and 25Gy to pelvic nodes (up to bifurcation of common iliac nodes) 5 fractions of weekly treatment. Once fraction per week. All patients will be given neoadjuvant and adjuvant androgen deprivation therapy.

SBRT

Eligibility Criteria

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

You may qualify if:

  • Histological confirmation of prostate adenocarcinoma
  • High risk prostate cancer patients (i.e. T3 to T4 disease and/or PSA \> 20 and/or Gleason score ≥ 8)
  • ECOG performance score 0-1
  • Age ≥ 18
  • History/physical examination within 2 weeks prior to registration
  • Able to sign informed-consent

You may not qualify if:

  • Patients with active cancer other than prostate cancer and non-melanoma skin cancer.
  • Evidence of distant metastases
  • Regional lymph node involvement
  • Previous radical surgery (prostatectomy), cryosurgery, or HIFU for prostate cancer
  • Previous pelvic irradiation, prostate brachytherapy, or bilateral orchiectomy
  • Previous hormonal therapy, such as LHRH agonists (e.g., goserelin, leuprolide) or LHRH antagonists (e.g., degarelix), anti-androgens (e.g., flutamide, bicalutamide), estrogens (e.g. DES), or surgical castration (orchiectomy)
  • Unstable angina and/or congestive heart failure requiring hospitalization, transmural myocardial infarction within the last 6 months, acute bacterial or fungal infection requiring intravenous antibiotics, chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of registration
  • Patients who have received prior chemotherapy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Clinical Oncology, Prince of Wales Hospital

Hong Kong, Hong Kong

Location

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Comprehensive Clinical Trial Unit

Study Record Dates

First Submitted

April 18, 2019

First Posted

May 6, 2019

Study Start

May 15, 2019

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2028

Last Updated

March 4, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations