Is Laparoscopic Excision for Peritoneal Endometriosis Helpful or Harmful?

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexFemale
Age18-50
SponsorUniversity of Aarhus

About this trial

The trial seeks to test effect of laparoscopic excision of peritoneal endometriosis on pelvic pain. Data will also be gathered on quality of life and neuropathic pain. Patients will be randomized to one of three groups: 1) laparoscopy with excision of endometrial tissue, 2) laparoscopy without excision of endometrial tissue and 3) waiting list control.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Adult (≥ 18 years) with suspected peritoneal endometriosis undergoing elective surgery for pain relief

Pain intensity ≥ 5 on Numeric Rating Scale (NRS) in the four weeks prior to giving consent

Disqualifiers

Other known conditions/diseases that may cause pelvic pain

Diagnosed personality disorder, schizophrenia or treatment with anti-psychotics

Planned pregnancy during study period

Women who cannot read or speak Danish

Trial design

Design model

Parallel

Treatments tested in this trial

  • Laparoscopy with excision

    Other intervention

    Diagnostic laparoscopy will be performed to visually confirm endometriosis in the peritoneum. Then, the relevant tissue will be excised and a histology will be performed.

  • Laparoscopy without excision

    Other intervention

    Diagnostic laparoscopy will be performed to visually confirm endometriosis in the peritoneum. However, no tissue will be excised and histology will not be performed.

  • Medical treatment-as-usual

    Other intervention

    Patients continue their hormonal and analgesic treatment-as-usual.

Treatment groups

100 Participants
are divided into 3 treatment groups
Group A: Active SurgeryOther 2 interventions
Group B: Diagnostic SurgeryOther 2 interventions
Group C: No-surgery controlOther 1 intervention

Trial outcomes

Primary outcomes

1

Pelvic pain measured using NRS

Pelvic pain intensity (sensory) and unpleasantness (affective) will be measured on 11-point Numeric Rating Scales (0 = no pain to 10 = worst pain imaginable) weekly.

Time frame
Change from pre-randomization to 1, 3 and 6 months post-randomization.

Secondary outcomes

1

Health-related Quality of Life measured using Endometriosis Health Profile-30

Quality of Life will be measured using the validated and patient-generated, endometriosis-specific questionnaire "Endometriosis Health Profile 30", consisting of 30 questions rated on Likert scales.

Time frame
Change from pre-randomization to 1, 3 and 6 months post-randomization.
2

Neuropathic pain symptoms (patient-reported) measured using painDETECT

Neuropathic pain symptoms (patient-reported) is measured using the validated painDETECT questionnaire.

Time frame
Change from pre-randomization to 1, 3 and 6 months post-randomization.
3

Neuropathic pain symptoms (assessed) measured using quantitative sensory testing

Neuropathic pain symptoms (assessed) is measured using a quantitative sensory testing battery. Allodynia, pinprick and pressure pain thresholds are measured.

Time frame
Change from pre-randomization to 6 months post-randomization.
4

Work ability measured using "Work Ability Index"

Work ability is measured using the "Work Ability Index" short questionnaire.

Time frame
Change from pre-randomization to 1, 3 and 6 months post-randomization.

Other outcomes

1

Widespread pain measured using body map

Widespread pain will be measured using a body map. At each measurement point, participants will rate the areas where they experience pain.

Time frame
Change from pre-randomization to 1, 3 and 6 months post-randomization.

Sponsors and contacts

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University of Aarhus

Lead sponsor

Aarhus University Hospital

Collaborator

Aalborg University Hospital

Collaborator