Trial Outcomes & Findings for Salvage Radiotherapy Combined With Hormonotherapy in Oligometastatic Pelvic Node Relapses of Prostate Cancer (NCT NCT02274779)

NCT ID: NCT02274779

Last Updated: 2026-02-13

Results Overview

This outcome represents the time from treatment initiation to the occurrence of biochemical or clinical relapse. Relapse is defined as: a PSA level greater than the PSA before treatment, confirmed by two consecutive increases in the same laboratory, and/or an increase in the number of metastatic sites at the evaluation visit. The reported value is the median time to relapse, in months.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

74 participants

Primary outcome timeframe

2 years

Results posted on

2026-02-13

Participant Flow

Participant milestones

Participant milestones
Measure
Hight Dose IMRT, ELIGARD
* PTV1 PTV5 to 66 Gy in 30 fractions of 2.2 Gy * PTV Pelvis: 54 Gy in 30 fractions of 1.8 Gy * PTV Loge 60 Gy in 30 fractions of 2 Gy 6 Gy A complement of 3 in two additional fractions Gy may be delivered across the lodge PTV. * PTV Relapse Lodge: In addition to treating the PTV Lodge, additional radiation of 6 Gy in 3 fractions of 2 Gy may be made to bring the total dose of 72 Gy in 36 fractions of 2 Gy. ELIGARD: Hormone therapy is recommended Eligard 45 mg acting for 6 months. It will be ideally administered the day of start of radiation therapy or within 3 months before the first day of radiotherapy. Nevertheless, free prescription is left to investigators. When using other hormonal strategies (anti-androgen agonists, LHRH antagonists or LHRH), an administration for six months will be critical.
Overall Study
STARTED
74
Overall Study
COMPLETED
67
Overall Study
NOT COMPLETED
7

Reasons for withdrawal

Reasons for withdrawal
Measure
Hight Dose IMRT, ELIGARD
* PTV1 PTV5 to 66 Gy in 30 fractions of 2.2 Gy * PTV Pelvis: 54 Gy in 30 fractions of 1.8 Gy * PTV Loge 60 Gy in 30 fractions of 2 Gy 6 Gy A complement of 3 in two additional fractions Gy may be delivered across the lodge PTV. * PTV Relapse Lodge: In addition to treating the PTV Lodge, additional radiation of 6 Gy in 3 fractions of 2 Gy may be made to bring the total dose of 72 Gy in 36 fractions of 2 Gy. ELIGARD: Hormone therapy is recommended Eligard 45 mg acting for 6 months. It will be ideally administered the day of start of radiation therapy or within 3 months before the first day of radiotherapy. Nevertheless, free prescription is left to investigators. When using other hormonal strategies (anti-androgen agonists, LHRH antagonists or LHRH), an administration for six months will be critical.
Overall Study
Lost to Follow-up
1
Overall Study
Protocol Violation
6

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Hight Dose IMRT, ELIGARD
n=67 Participants
* PTV1 PTV5 to 66 Gy in 30 fractions of 2.2 Gy * PTV Pelvis: 54 Gy in 30 fractions of 1.8 Gy * PTV Loge 60 Gy in 30 fractions of 2 Gy 6 Gy A complement of 3 in two additional fractions Gy may be delivered across the lodge PTV. * PTV Relapse Lodge: In addition to treating the PTV Lodge, additional radiation of 6 Gy in 3 fractions of 2 Gy may be made to bring the total dose of 72 Gy in 36 fractions of 2 Gy. ELIGARD: Hormone therapy is recommended Eligard 45 mg acting for 6 months. It will be ideally administered the day of start of radiation therapy or within 3 months before the first day of radiotherapy. Nevertheless, free prescription is left to investigators. When using other hormonal strategies (anti-androgen agonists, LHRH antagonists or LHRH), an administration for six months will be critical.
Age, Continuous
68 years
n=67 Participants
Sex: Female, Male
Female
0 Participants
n=67 Participants
Sex: Female, Male
Male
67 Participants
n=67 Participants
Region of Enrollment
France
67 Participants
n=67 Participants

PRIMARY outcome

Timeframe: 2 years

This outcome represents the time from treatment initiation to the occurrence of biochemical or clinical relapse. Relapse is defined as: a PSA level greater than the PSA before treatment, confirmed by two consecutive increases in the same laboratory, and/or an increase in the number of metastatic sites at the evaluation visit. The reported value is the median time to relapse, in months.

Outcome measures

Outcome measures
Measure
Hight Dose IMRT, ELIGARD
n=67 Participants
* PTV1 PTV5 to 66 Gy in 30 fractions of 2.2 Gy * PTV Pelvis: 54 Gy in 30 fractions of 1.8 Gy * PTV Loge 60 Gy in 30 fractions of 2 Gy 6 Gy A complement of 3 in two additional fractions Gy may be delivered across the lodge PTV. * PTV Relapse Lodge: In addition to treating the PTV Lodge, additional radiation of 6 Gy in 3 fractions of 2 Gy may be made to bring the total dose of 72 Gy in 36 fractions of 2 Gy. ELIGARD: Hormone therapy is recommended Eligard 45 mg acting for 6 months. It will be ideally administered the day of start of radiation therapy or within 3 months before the first day of radiotherapy. Nevertheless, free prescription is left to investigators. When using other hormonal strategies (anti-androgen agonists, LHRH antagonists or LHRH), an administration for six months will be critical.
Median Relapse-Free Survival Time (Biochemical or Clinical)
45.3 months
Interval 31.8 to 48.5

Adverse Events

Hight Dose IMRT, ELIGARD

Serious events: 5 serious events
Other events: 5 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
Hight Dose IMRT, ELIGARD
n=67 participants at risk
* PTV1 PTV5 to 66 Gy in 30 fractions of 2.2 Gy * PTV Pelvis: 54 Gy in 30 fractions of 1.8 Gy * PTV Loge 60 Gy in 30 fractions of 2 Gy 6 Gy A complement of 3 in two additional fractions Gy may be delivered across the lodge PTV. * PTV Relapse Lodge: In addition to treating the PTV Lodge, additional radiation of 6 Gy in 3 fractions of 2 Gy may be made to bring the total dose of 72 Gy in 36 fractions of 2 Gy. ELIGARD: Hormone therapy is recommended Eligard 45 mg acting for 6 months. It will be ideally administered the day of start of radiation therapy or within 3 months before the first day of radiotherapy. Nevertheless, free prescription is left to investigators. When using other hormonal strategies (anti-androgen agonists, LHRH antagonists or LHRH), an administration for six months will be critical.
Gastrointestinal disorders
Recto-sigmoid junction stenosis
1.5%
1/67 • Number of events 1 • 5 years
Surgical and medical procedures
post radiation proctatis
1.5%
1/67 • Number of events 1 • 5 years
Nervous system disorders
sylvian stroke
1.5%
1/67 • Number of events 1 • 5 years
Renal and urinary disorders
urinary retention
1.5%
1/67 • Number of events 1 • 5 years
Renal and urinary disorders
incontinence
1.5%
1/67 • Number of events 1 • 5 years

Other adverse events

Other adverse events
Measure
Hight Dose IMRT, ELIGARD
n=67 participants at risk
* PTV1 PTV5 to 66 Gy in 30 fractions of 2.2 Gy * PTV Pelvis: 54 Gy in 30 fractions of 1.8 Gy * PTV Loge 60 Gy in 30 fractions of 2 Gy 6 Gy A complement of 3 in two additional fractions Gy may be delivered across the lodge PTV. * PTV Relapse Lodge: In addition to treating the PTV Lodge, additional radiation of 6 Gy in 3 fractions of 2 Gy may be made to bring the total dose of 72 Gy in 36 fractions of 2 Gy. ELIGARD: Hormone therapy is recommended Eligard 45 mg acting for 6 months. It will be ideally administered the day of start of radiation therapy or within 3 months before the first day of radiotherapy. Nevertheless, free prescription is left to investigators. When using other hormonal strategies (anti-androgen agonists, LHRH antagonists or LHRH), an administration for six months will be critical.
Renal and urinary disorders
genito-urinary
7.5%
5/67 • Number of events 5 • 5 years

Additional Information

Pr Stéphane SUPIOT

Institut de Cancérologie de l'Ouest

Phone: 2 40 67 99 00

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60