Trial Outcomes & Findings for Radical Versus Simple Hysterectomy and Pelvic Node Dissection With Low-risk Early Stage Cervical Cancer (NCT NCT01658930)

NCT ID: NCT01658930

Last Updated: 2024-12-17

Results Overview

Pelvic recurrence rate at 3 years was estimated by 1-the Kaplan-Meier estimate for the probability of pelvic relapse free survival (PRFS) at 3 years. PRFS was defined as the time from randomization to the time when a recurrence within the pelvic field was first documented. Patients who had a relapse outside of the pelvic field documented or died before the documentation of a pelvic relapse were censored at the time of first documented extra-pelvic relapse or death. The pelvic relapse free survival of patients who were alive without any relapse at the time of final analysis was censored at the last known alive.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

700 participants

Primary outcome timeframe

3 years

Results posted on

2024-12-17

Participant Flow

Participant milestones

Participant milestones
Measure
Radical Hysterectomy
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Overall Study
STARTED
350
350
Overall Study
COMPLETED
350
350
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Radical Versus Simple Hysterectomy and Pelvic Node Dissection With Low-risk Early Stage Cervical Cancer

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Radical Hysterectomy
n=350 Participants
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=350 Participants
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Total
n=700 Participants
Total of all reporting groups
Age, Continuous
45 years
n=5 Participants
42 years
n=7 Participants
44 years
n=5 Participants
Sex: Female, Male
Female
350 Participants
n=5 Participants
350 Participants
n=7 Participants
700 Participants
n=5 Participants
Sex: Female, Male
Male
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Asian
19 Participants
n=5 Participants
22 Participants
n=7 Participants
41 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
5 Participants
n=5 Participants
3 Participants
n=7 Participants
8 Participants
n=5 Participants
Race (NIH/OMB)
White
261 Participants
n=5 Participants
264 Participants
n=7 Participants
525 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
64 Participants
n=5 Participants
59 Participants
n=7 Participants
123 Participants
n=5 Participants
Region of Enrollment
Canada
92 participants
n=5 Participants
94 participants
n=7 Participants
186 participants
n=5 Participants
Region of Enrollment
Austria
15 participants
n=5 Participants
13 participants
n=7 Participants
28 participants
n=5 Participants
Region of Enrollment
Netherlands
53 participants
n=5 Participants
57 participants
n=7 Participants
110 participants
n=5 Participants
Region of Enrollment
Belgium
20 participants
n=5 Participants
20 participants
n=7 Participants
40 participants
n=5 Participants
Region of Enrollment
Norway
11 participants
n=5 Participants
9 participants
n=7 Participants
20 participants
n=5 Participants
Region of Enrollment
China
0 participants
n=5 Participants
2 participants
n=7 Participants
2 participants
n=5 Participants
Region of Enrollment
Ireland
7 participants
n=5 Participants
7 participants
n=7 Participants
14 participants
n=5 Participants
Region of Enrollment
United Kingdom
49 participants
n=5 Participants
53 participants
n=7 Participants
102 participants
n=5 Participants
Region of Enrollment
France
64 participants
n=5 Participants
58 participants
n=7 Participants
122 participants
n=5 Participants
Region of Enrollment
Germany
29 participants
n=5 Participants
27 participants
n=7 Participants
56 participants
n=5 Participants
Region of Enrollment
Russia
1 participants
n=5 Participants
1 participants
n=7 Participants
2 participants
n=5 Participants
Region of Enrollment
South Korea
9 participants
n=5 Participants
9 participants
n=7 Participants
18 participants
n=5 Participants

PRIMARY outcome

Timeframe: 3 years

Population: All patients randomized.

Pelvic recurrence rate at 3 years was estimated by 1-the Kaplan-Meier estimate for the probability of pelvic relapse free survival (PRFS) at 3 years. PRFS was defined as the time from randomization to the time when a recurrence within the pelvic field was first documented. Patients who had a relapse outside of the pelvic field documented or died before the documentation of a pelvic relapse were censored at the time of first documented extra-pelvic relapse or death. The pelvic relapse free survival of patients who were alive without any relapse at the time of final analysis was censored at the last known alive.

Outcome measures

Outcome measures
Measure
Radical Hysterectomy
n=350 Participants
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=350 Participants
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Pelvic Recurrence Rate at 3 Years
2.17 percentage of participants
Interval 0.84 to 3.5
2.52 percentage of participants
Interval 1.07 to 3.97

SECONDARY outcome

Timeframe: 3 years

Population: All patients randomized.

It was defined as the time from randomization to the time when a recurrence within the pelvic field was first documented. Patients who had a relapse outside of the pelvic field documented or died before the documentation of a pelvic relapse were censored at the time of first documented extra-pelvic relapse or death. The pelvic relapse free survival of patients who were alive without any relapse at the time of final analysis was censored at the last known alive. 3 year pelvic relapse-free survival was estimated by Kaplan-Meier method.

Outcome measures

Outcome measures
Measure
Radical Hysterectomy
n=350 Participants
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=350 Participants
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Pelvic Relapse-free Survival
97.5 percentage of participants
Interval 95.9 to 99.1
97.8 percentage of participants
Interval 96.2 to 99.4

SECONDARY outcome

Timeframe: 3 years

Population: All patients randomized.

It was defined as the time from randomization to the documented reappearance of disease provided that this recurrence is outside of pelvic. Patients who relapsed in pelvic field were censored at the time of first documented pelvic relapse. Patients who died before any relapse or alive without recurrence were censored at the date of death or last known alive date. 3 year extra-pelvic relapse-free survival was estimated by Kaplan-Meier method.

Outcome measures

Outcome measures
Measure
Radical Hysterectomy
n=350 Participants
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=350 Participants
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Extra-pelvic Relapse-free Survival
99.7 percentage of participants
Interval 99.1 to 100.0
98.1 percentage of participants
Interval 96.6 to 99.6

SECONDARY outcome

Timeframe: 3 years

Population: All patients randomized.

It was defined as the time from randomization to the first time when either a pelvic or extra-pelvic recurrence was documented. Patients who died before any recurrence or alive without recurrence were censored at the date of death or last known alive date. 3 year relapse-free survival was estimated by Kaplan-Meier method.

Outcome measures

Outcome measures
Measure
Radical Hysterectomy
n=350 Participants
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=350 Participants
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Relapse-free Survival
97.8 percentage of participants
Interval 96.2 to 99.4
96.3 percentage of participants
Interval 94.2 to 98.4

SECONDARY outcome

Timeframe: 3 years

Population: All patients randomized.

It was defined as the time from randomization until death from any cause. The living patients were censored at the date of last known alive. 3 year overall survival was estimated by Kaplan-Meier method.

Outcome measures

Outcome measures
Measure
Radical Hysterectomy
n=350 Participants
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=350 Participants
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Overall Survival
99.4 percentage of participants
Interval 98.5 to 100.0
99.1 percentage of participants
Interval 98.0 to 100.0

Adverse Events

Radical Hysterectomy

Serious events: 0 serious events
Other events: 208 other events
Deaths: 7 deaths

Simple Hysterectomy

Serious events: 0 serious events
Other events: 181 other events
Deaths: 7 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Radical Hysterectomy
n=344 participants at risk
Radical Hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. The uterus, cervix, medial 1/3 of parametria, 2cm of the uterosacral ligaments and upper 1-2cm of the vagina are to be removed en bloc. The uterine artery is ligated laterally to the ureters and the ureters are unroofed to the ureterovesical junction.
Simple Hysterectomy
n=338 participants at risk
Simple hysterectomy + pelvic lymph node dissection: This procedure may be performed abdominally, laparoscopically, robotically or vaginally. Extrafascial hysterectomy involves removal of the uterus with cervix without adjacent parametria. The uterine arteries are transected medial to the ureters at the level of the isthmus and the uterosacral ligaments are transected at the level of the cervix. Surgeons should pay special attention to make sure that the whole cervix is removed. As such, a maximum of 0.5 cm of vaginal cuff can be removed to ensure the complete removal of the cervix.
Gastrointestinal disorders
Abdominal pain
13.7%
47/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
10.7%
36/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Gastrointestinal disorders
Constipation
5.5%
19/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
3.8%
13/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
General disorders
Fatigue
8.1%
28/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
5.6%
19/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Nervous system disorders
Paresthesia
6.4%
22/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
5.0%
17/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Nervous system disorders
Peripheral sensory neuropathy
3.8%
13/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
6.2%
21/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Renal and urinary disorders
Urinary incontinence
11.0%
38/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
4.7%
16/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Renal and urinary disorders
Urinary retention
9.9%
34/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
0.59%
2/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Reproductive system and breast disorders
Dyspareunia
5.5%
19/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
6.2%
21/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Reproductive system and breast disorders
Pelvic pain
4.9%
17/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
6.8%
23/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Vascular disorders
Lymphedema
10.5%
36/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
10.4%
35/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
Vascular disorders
Hot flashes
5.8%
20/344 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.
4.1%
14/338 • Observed during the follow-up (up to 7 years after 4 weeks of surgery).
Only adverse events related to surgery were collected from patients who had the surgery.

Additional Information

Lois E. Shepherd

Canadian Cancer Trials Group

Phone: 6135336430

Results disclosure agreements

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