ESPriT2 – a multicentre clinical trial to determine whether surgical removal of superficial peritoneal endometriosis improves pain symptoms and quality of life

ISRCTN ISRCTN27244948
DOI https://doi.org/10.1186/ISRCTN27244948
IRAS number 291525
Secondary identifying numbers IRAS 291525
Submission date
24/02/2021
Registration date
06/04/2021
Last edited
06/11/2024
Recruitment status
No longer recruiting
Overall study status
Ongoing
Condition category
Urological and Genital Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English Summary

Background and study aims
Endometriosis is a chronic, incurable condition that affects about 10% of women of reproductive age. It is defined as a growth of cells similar to the womb lining outside of the womb in the pelvis, and is associated with chronic pelvic pain,excessive period pain, pain with sexual intercourse and difficulties in getting pregnant. If the disease is found only on the lining of the pelvis it is known as “superficial peritoneal endometriosis” and is usually treated during a laparoscopic surgery by cutting out (excision) or burning off (ablation). However, many women do not find improvement in their symptoms after the surgery and can have complications from the procedure. The aim of this study is to determine if removal of the superficial peritoneal endometriosis improves pain symptoms and quality of life, which method of removal (excision or ablation) is more effective or if surgical removal is of no benefit to the patients and can potentially cause harm.

Who can participate?
Women who are attending gynaecology departments with pelvic pain who have not previously had a diagnosis of endometriosis via laparoscopy.

What does the study involve?
Patients who consent to the trial will be randomised during the surgery, if superficial endometriosis is found, to either having the endometriosis removed or not. Follow-up will be at 30 days, 3, 6 months and 12 month post-operatively. We will also carry out a data linkage follow-up of up to 5 years.

What are the possible benefits and risks of participating?
Participants may or may not get a direct benefit from taking part in this trial. This trial will generate information to allow women with suspected endometriosis and gynaecologists to make an informed choice whether to immediately remove endometriosis when a diagnostic laparoscopy identifies superficial peritoneal endometriosis alone. If the trial shows that removal of superficial peritoneal endometriosis does not help, or makes symptoms worse, this would mean that women could choose to not have it removed or avoid a diagnostic laparoscopy altogether. Women could then opt for early pain management with painkillers, hormones and drugs that work on the nerves in the pelvis.

Where is the study run from?
The trial is being run by Professor Andrew Horne's trial management group in the University of Edinburgh, with database and statistical support from Edinburgh Clinical Trials Unit (UK)

When is the study starting and how long is it expected to run for?
January 2021 to June 2026

Who is funding the study?
National Institute for Health Research (NIHR) Health Technology Assessment (UK)

Who is the main contact?
Ann Doust (ann.doust@ed.ac.uk or ETMT@ed.ac.uk)

Study website

Contact information

Mrs Ann Doust
Public

Second Floor Simpson Centre for Reproductive Health
University of Edinburgh
Royal Infirmary of Edinburgh
51 Little France Crescent
Edinburgh
EH16 4SA
United Kingdom

ORCiD logoORCID ID 0000-0001-8726-7186
Phone 07810643488
Email ann.doust@ed.ac.uk

Study information

Study designA multi-centre participant-blind parallel-group randomised controlled clinical and cost effectiveness trial with internal pilot
Primary study designInterventional
Secondary study designRandomised parallel trial
Study setting(s)Hospital
Study typeQuality of life
Participant information sheet https://www.ed.ac.uk/centre-reproductive-health/ESPriT2 (website under construction)
Scientific titleESPriT2 - A multi-centre randomised controlled trial to determine the effectiveness of laparoscopic removal of isolated superficial peritoneal endometriosis for the management of chronic pelvic pain in women
Study acronymESPriT2
Study hypothesisLaparoscopic removal of isolated superficial peritoneal endometriosis is more effective than diagnostic laparoscopy to manage endometriosis-associated pain.
Ethics approval(s)Approved 27/01/2021, East of Scotland Research Ethics Service (Tayside Medical Science Centre, Ninewells Hospital, Dundee, DD1 9SY, UK; +44 (0)1382 383848; tay.eosres@nhs.scot), ref: 20/ES/0127
ConditionWomen with isolated superficial peritoneal endometriosis
InterventionParticipants will be randomised at time of laparoscopy if superficial peritoneal endometriosis only is found. Randomisation will be to either remove the lesions by excision/ablation/both (depending on operating surgeon's preference) or to diagnostic laparoscopy alone. Randomisation is via an on-line database and will take place during laparoscopy once eligibility has been confirmed.
Follow-up will be at 30 days, 3, 6 months and 12 month post-operatively. We will also carry out a data linkage follow-up of up to 5 years.
Intervention typeProcedure/Surgery
Primary outcome measurePain at 12 months post randomisation as defined by the ‘pain domain’ of the EHP-30 questionnaire
Secondary outcome measures1. Time off work and presenteeism defined by the WPAIQ at 12 months
2. Need for hormonal medication for endometriosis related symptoms at 3, 6 and 12 months
3. Need for analgesics for endometriosis related symptoms at 3, 6 and 12 months
4. Pain domain of the EHP-30 at 3 and 6 months
5. Total score of EHP-30 at 3, 6 and 12 months
6. Fatigue symptoms defined by the BFI at 12 months
7. Neuropathic pain symptoms defined by PainDETECT™ at 12 months
8. Urinary symptoms defined by PUF 12 months
9. Irritable bowel symptoms defined by the ROME IV criteria at 12 months
10. Pain catastrophizing defined by PCQ at 12 months
11. Fibromyalgia defined by FS at 12 months
12. Specific patient reported symptoms defined by MYMOP2
13. Post operative pain and analgesic requirements by patient reported diary
14. Length of hospital stay measured using patient records
15. Surgical complications at 30 days measured using patient records
16. Adverse events related to surgery at 30 days measured using patient records
17. Need for further surgery for endometriosis related symptoms at 12 months measured using patient records
18. Pregnancy events at 3, 6 and 12 months

Economic Outcomes
19. Quality of life defined by EQ5D-5L at 3, 6, and 12 months
20. General wellbeing defined by ICECAP-A at 3, 6 and 12 months
21. Costs and resource use at 3, 6 and 12 months (primary and secondary care) collected via a telephone call and completion of a data collection form
22. Impacts on employment, caregiving, and other usual activities (e.g. education) collected via a telephone call and completion of a data collection form
Overall study start date01/01/2021
Overall study end date30/06/2026

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit16 Years
SexFemale
Target number of participants400
Participant inclusion criteria1. Aged over 16
2. Undergoing laparoscopy for the investigation of chronic pelvic pain
3. In order to be randomised, isolated superficial peritoneal endometriosis (SPE) must be identified at laparoscopy (macroscopically)
4. Able to give informed consent
Participant exclusion criteria1. Previous surgical diagnosis of endometriosis
2. Pregnant
3. Women who have undergone hysterectomy and or bilateral oophorectomy
4. Deep endometriosis on imaging or at time of laparoscopy
5. Ovarian cyst on imaging that is the indication for surgery
6. Ovarian cyst requiring surgical management at time of laparoscopy
7. Dense adhesions that require surgical management at time of laparoscopy
8. Peritoneal ‘pockets’ only noted at laparoscopy
9. Endometrioma observed at the time of laparoscopy
Recruitment start date05/05/2021
Recruitment end date28/02/2025

Locations

Countries of recruitment

  • England
  • Scotland
  • United Kingdom
  • Wales

Study participating centres

Royal Infirmary of Edinburgh
NHS Lothian
51 Little France Crescent
Edinburgh
EH16 4SA
United Kingdom
Aberdeen Infirmary
NHS Grampian
Foresterhill
Aberdeen
AB25 2ZN
United Kingdom
University Hospital Crosshouse
NHS Ayrshire and Arran
Crosshouse
Kilmarnock
KA2 0BE
United Kingdom
Victoria Hospital
NHS Fife
Kirkcaldy
KY2 5AH
United Kingdom
Forth Valley Hospital
NHS Forth Valley
Stirling Road
Larbet
FK5 5WR
United Kingdom
City Hospital
SWB NHS Trust
Dudley Road
Birmingham
B18 7QH
United Kingdom
Birmingham Women's Hospital
Birmingham Women's and Children's NHS FT
Mindelsohn Way
Edgbaston
Birmingham
B15 2TG
United Kingdom
Princess of Wales Hospital
Cwm Taf Morgannwg UHB
Coity Road
Bridgend
CF31 1RQ
United Kingdom
Burnley General Hospital
East Lancashire NHS Teaching Trust
Casterton Avenue
Burnley
BB10 2PQ
United Kingdom
Addenbrooke's Hospital
Cambridge University Hospital NHS Foundation Trust
Hills Road
Cambridge
CB2 0QQ
United Kingdom
Countess of Chester Hospital
Countess of Chester Hospital NHS Foundation Trust
Chester
CH2 1UL
United Kingdom
St Mary's Hospital
Manchester University NHS Foundation Trust
Oxford Road
Manchester
M13 9WL
United Kingdom
North Devon District Hospital
Royal Devon and Exeter NHS Foundation Trust
Raleigh Heights
Barnstaple
EX31 4JB
United Kingdom
John Radcliffe Hospital
Oxford University Hospitals NHS Foundation Trust
Headley Way
Oxford
OX3 9DU
United Kingdom
Derriford Hospital
University Hospitals Plymouth NHS Trust
Derriford Road
PLYMOUTH
PL6 8DH
United Kingdom
University Hospitals Dorset
Longfleet Road
Poole
BH15 2JB
United Kingdom
Queen Alexandra Hospital
Portsmouth Hospitals University NHS Trust
Cosham
Portsmouth
PO6 3LY
United Kingdom
Rotherham Hospital
The Rotherham NHS Foundation Trust
Moorgate Road
Rotherham
S60 2UD
United Kingdom
Royal Cornwall Hosptial
Royal Cornwall Hospitals NHS Trust
Treliske
Truro
TR1 3LJ
United Kingdom
Princess Anne Hospital
University of Southampton NHS
Coxford Road
Southampton
SO16 5YA
United Kingdom
Southend University Hospital
Southend University Hospital NHS Foundation Trust
Prittlewell Chase
Westcliff-on-Sea
Southend-on-Sea
SS0 0RY
United Kingdom
James Cook Hospital
South Tees NHS Trust
Middlesbrough
TS4 3BW
United Kingdom
South Tyneside District Hospital
South Tyneside and Sunderland Foundation Trust
South Shields
NE34 0PL
United Kingdom
Stoke Mandeville Hospital
Bucks Healthcare NHS Trust
Aylesbury
HP218AL
United Kingdom
Guy's and St Thomas' NHS Foundation Trust
Westminster Bridge Road
London
SE1 7EH
United Kingdom
Princess Royal Hospital
Shrewsbury and Telford Hospitals NHS Trust
Telford
TF1 6TF
United Kingdom
University College London Hospital
University College London Hospitals NHS Foundation Trust
Gynaecology Unit
Lower Ground Floor
EGA Wing
235 Euston Road
London
NW1 2BU
United Kingdom
Manor Hospital
Walsall Healthcare NHS Trust
Moat Road
Walsall
WS2 9PS
United Kingdom
West Middlesex University Hospital
West Middlesex University Hospital, Chelsea and Westminster Hospital NHS Foundation Trust
Twickenham Road
Isleworth
London
TW7 6AF
United Kingdom
Yeovil District Hospital
Yeovil District Hospital NHS Foundation Trust
Higher Kingston
Yeovil
TA19 0BE
United Kingdom

Sponsor information

University of Edinburgh
University/education

ACCORD offices
QMRI
47 Little France Crescent
Edinburgh
EH16 4TJ
Scotland
United Kingdom

Phone +44 (0)131 242 3326
Email resgov@accord.scot
Website https://www.accord.scot
ROR logo "ROR" https://ror.org/01nrxwf90
NHS Lothian
Hospital/treatment centre

ACCORD offices
QMRI
47 Little France Crescent
Edinburgh
EH16 4TJ
Scotland
United Kingdom

Phone +44 (0)131 242 3326
Email resgov@accord.scot
Website http://www.nhslothian.scot.nhs.uk/Pages/default.aspx
ROR logo "ROR" https://ror.org/03q82t418

Funders

Funder type

Government

National Institute for Health Research
Government organisation / National government
Alternative name(s)
National Institute for Health Research, NIHR Research, NIHRresearch, NIHR - National Institute for Health Research, NIHR (The National Institute for Health and Care Research), NIHR
Location
United Kingdom

Results and Publications

Intention to publish date30/07/2026
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planThe primary academic outputs of the ESPriT2 study will include an HTA monograph and a high-impact open access peer-reviewed journal publication. The trial launch and its results at completion will be disseminated nationally through the BSGE via its SCOPE newsletter (published every three months), which is sent out to all members. Presentations and reports will be submitted to UK specialist bodies with the responsibility of guiding clinical practice, policies, research priorities, governance and training in matters related to pathways of management of women with endometriosis. This will include the Royal College of Obstetricians and Gynaecologists (RCOG) and BSGE. The results of the trial will be included in updates of the NICE guidelines and relevant Cochrane reviews, which directly influence practice in the UK and worldwide respectively. In addition, there will also be a project webpage to be hosted on the Endometriosis UK, EAI and Endometriosis.org websites and the University of Edinburgh website. Professor Vincent will ensure relevant members of the pain community are updated and a summary of the trial at its launch and its findings will be disseminated in the newsletter of the IASP Abdominal and Pelvic Pain SIG and additionally communicated to the British Pain Society for communication to all their members who may work in pelvic pain clinics.
IPD sharing planThe datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article 22/06/2023 23/06/2023 Yes No
HRA research summary 28/06/2023 No No

Editorial Notes

06/11/2024: The recruitment end date was changed from 30/11/2024 to 28/02/2025.
06/02/2024: the following changes were made:
1. The overall study end date was changed from 30/06/2025 to 30/06/2026.
2. The recruitment end date was changed from 30/01/2024 to 30/11/2024.
3. The intention to publish date was changed from 30/07/2025 to 30/07/2026.
01/08/2023: The recruitment start date has been changed from 01/04/2021 to 05/05/2021.
23/06/2023: Publication reference added.
02/03/2021: Trial’s existence confirmed by East of Scotland Research Ethics Service.