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MEdical Versus SUrgical Treatments of Rectal Endometriosis

Phase 3
Conditions
Endometriosis
Interventions
Procedure: rectal shaving; rectal disc excision; colorectal resection
Drug: Cyproterone acetate 50 mg; estradiol 0.5% percutaneous
Registration Number
NCT01973816
Lead Sponsor
University Hospital, Rouen
Brief Summary

The purpose of this study is to determine whether, in women with deep endometriosis involving the rectum and not intending to get pregnant, continuous hormonal treatment would be followed by better digestive functional outcomes than curative rectal surgery. Are included women from 35 to 50 years presenting with deep endometriosis infiltrating at least the muscular layer of the rectum and not having pregnancy intention.

The main outcome concerns the quality of digestive function 24 after the onset of the treatment, assessed using a composite variable: patient considering that digestive function is normal AND the Knowles-Eccersley-Scott-Symptom Questionnaire (KESS score) \<7 AND the Gastrointestinal Quality of Life Index (GIQLI) score \>100.

Secondary outcomes are: presence of severe constipation, increased frequency of daily bowel movements, anal incontinence, postoperative dysuria, Biberoglou \& Behrman score, quality of life SF36 score, KESS score, GIQLI, Wexner score of anal continence, Bristol stools score, the rate of postoperative complications, medical treatment adverse outcomes, the rate of additional endoscopic and surgical procedures.

The randomization is central, once the physician asses the diagnosis, explain the study's principle and rece In the arm A, the patients received triptoreline and add back therapy by estradiol during 6 months, followed by daily intake of cyproterone acetate and add back therapy during 18 months.

In the arm B, patients are managed by rectal surgery (depending on the surgeon choice: rectal shaving, rectal disc excision or colorectal resection) followed by the prevention of recurrences by daily intake of cyproterone acetate and add back therapy during 18 months.

The number of subjects required is 78 (39 on each arm). Inclusions period is estimated at 24 months. The length of the follow up is 24 months. The patients have 8 visits in the arm A, and 7 visits in the arm B.

Eleven French tertiary referral centres will enrol patients in the trial.

Detailed Description

Not available

Recruitment & Eligibility

Status
UNKNOWN
Sex
Female
Target Recruitment
78
Inclusion Criteria
  • Age 35-50
  • No menopause
  • Digestive complaints: defecation pain, dyskesia, diarrhea, constipation, rectorrhage
  • Imaging assessment revealing deep endometriosis involving at least the muscular rectal layer
  • No intention to get pregnant during the following 24 months
  • Negative urinary pregnancy test
  • Affiliated to the French Social Security System
Exclusion Criteria
  • Pregnant women or during the breastfeeding
  • Pregnancy intention or lack of efficient contraception
  • Unexpected rectal endometriosis intraoperatively revealed
  • Refus of one of treatments planned in the two arms
  • Severe disease requiring surgical treatment in emergency (bowel occlusion, ureteral stenosis or hydronephrosis), severe dyspareunia
  • Contraindications to hormonal treatment or surgery
  • Major thromboembolic factors
  • Antecedents of inflammatory bowel diseases, cancer or colorectal resection
  • Vaginal hemorrhage with undetermined etiology

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Medical treatmentTriptoreline 11.25 i.v.; Estradiol 0.5% percutaneous gel;The patients received triptoreline and add back therapy by estradiol during 6 months, followed by daily intake of cyproterone acetate and add back therapy during 18 months.
Surgicalrectal shaving; rectal disc excision; colorectal resectionThe patients are managed by rectal surgery (depending on the surgeon choice: rectal shaving, rectal disc excision or colorectal resection) followed by the prevention of recurrences by daily intake of cyproterone acetate and add back therapy during 18 months.
Medical treatmentCyproterone acetate 50 mg; estradiol 0.5% percutaneousThe patients received triptoreline and add back therapy by estradiol during 6 months, followed by daily intake of cyproterone acetate and add back therapy during 18 months.
SurgicalEstradiol 0.5% percutaneous gel; Cyproterone acetate 50 mg oralThe patients are managed by rectal surgery (depending on the surgeon choice: rectal shaving, rectal disc excision or colorectal resection) followed by the prevention of recurrences by daily intake of cyproterone acetate and add back therapy during 18 months.
Primary Outcome Measures
NameTimeMethod
Postoperative digestive function24 months

Composite variable: patient considering that digestive function is normal AND the Knowles-Eccersley-Scott-Symptom Questionnaire (KESS score) \<7 AND the Gastrointestinal Quality of Life Index (GIQLI) score \>100.

Secondary Outcome Measures
NameTimeMethod
Unfavorable digestive functional outcome24 months

Presence of severe constipation (\<1 stool/5D), increased frequency of daily bowel movements (\>=3 stools/D), anal incontinence, postoperative dysuria

Trial Locations

Locations (11)

CHU de DIJON

🇫🇷

Dijon, France

CHU de STRASBOURG STRASBOURG

🇫🇷

Strasbourg, France

Clinique Gynécologique CHRU de LILLE

🇫🇷

Lille, France

Service de Gynécologie-Obstétrique CHU de NIMES

🇫🇷

Nimes, France

Chi Poissy-St Germain En Laye Poissy

🇫🇷

Poissy, France

Service de Gynécologie, Obstétrique et Médecine de la Reproduction CHU de CLERMONT-FERRAND Hôpital ESTAING 1 place Lucie Aubrac

🇫🇷

Clermont-ferrand, France

Hôpital du CHESNAY

🇫🇷

Le Chesnay, France

CHU d'AMIENS

🇫🇷

Amiens, France

Service de Gynécologie-Obstétrique AP-HP Hôpital du KREMLIN BICETRE

🇫🇷

Kremlin Bicetre, France

Hôpital de TENON

🇫🇷

Paris, France

Clinique Gynécologique et Obstétricale

🇫🇷

Rouen, France

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