ISRCTN ISRCTN40940943
DOI https://doi.org/10.1186/ISRCTN40940943
Protocol serial number 18843
Sponsor National Institute for Health Research
Funder National Institute for Health Research
Submission date
22/04/2015
Registration date
23/04/2015
Last edited
29/12/2015
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Cancer
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

http://www.cancerresearchuk.org/about-cancer/find-a-clinical-trial/a-study-looking-at-giving-hormone-treatment-to-prevent-womb-cancer-in-obese-women-protec1

Contact information

Dr Abi Derbyshire
Scientific

St Mary's Hospital Manchester
5th Floor (Research)
St. Mary's Hospital
Oxford Road
Manchester
M13 9WL
United Kingdom

Study information

Primary study designInterventional
Study designNon-randomised; Interventional; Design type: Prevention, Treatment
Secondary study designRandomised controlled trial
Study type Participant information sheet
Scientific titlePROgesterone Therapy for Endometrial Cancer prevention in obese women: an interventional trial
Study acronymPROTEC1
Study objectives1. To evaluate the efficacy of the Mirena IUS for endometrial protection; including histological impact and the expression of biomarkers of proliferation, apoptosis and other pathways associated with increased risk of endometrial cancer
2. To determine the feasibility, safety and acceptability of using the Mirena IUS for endometrial protection
3. To determine the effect of Mirena IUS insertion on systemic endocrine function and mental and physical wellbeing
Ethics approval(s)15/EE/0063
Health condition(s) or problem(s) studiedTopic: Cancer, Metabolic and endocrine disorders; Subtopic: Gynaecological Cancer, Metabolic and Endocrine (all Subtopics); Disease: Uterus/Endometrium, Metabolic & Endocrine (not diabetes)
InterventionWomen with a BMI >40 who are seen by the Sleep Apnoea Service at Salford Royal Hospital will be asked if they wish to participate in the trial. They will complete a questionnaire, blood samples and biopsies of the lining of the womb taken before and after insertion of a Mirena IUS.
Intervention typeOther
Primary outcome measure(s)

1. Ki-67

Key secondary outcome measure(s)

1. Histopathology
2. Phospho-H3
3. Cleaved Caspase 3, cleaved PARP
4. MAPK signalling molecules and their phosphorylated isoforms
5. P13K-AKT-mTOR signalling molecules and their phosphorylated isoforms
6. PTEN and AMPK, P53
7. Strathmin, cyclin A, c-myc
8. Oestrogen, progesterone, LH, FSH, insulin, adiponectin and leptin receptors
9. IGF-1IR, IGF2, EIG121, RALDH2, SFRP-1, SFRP-4, Survivin
10. Endocrine markers including but not limited to:
11. Fasting serum glucose & insulin, HbA1c, IGFBP-1 and C-peptide levels
12. SHBG, oestrogen, progesterone, free androgen index, FSH, LH, testosterone, CRP
13. Leptin, adiponectin
14. Changes in menstrual function, physical and mental wellbeing

Completion date01/11/2016

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexFemale
Target sample size at registration40
Key inclusion criteria1. Women seen in sleep apnoea clinic at Salford Royal Hospital
2. BMI>40
3. Informed consent
4. Aged 18 years or over
5. Not actively trying to lose weight
6. Normal up to date smear
7. Normal endometrial sampling at screening
Key exclusion criteria1. Previous hysterectomy
2. LNG-IUS or IUD in situ or in previous 6 months
3. Pregnant or breast feeding, previous endometrial ablation
4. Breast cancer
5. Congenital/acquired uterine anomaly
6. Pelvic inflammatory disease or genital actinomycosis
7. Immunodeficiency
8. Mirena IUS contraindicated
9. Taking systemic progestagens
10. Patient actively trying to lose weight (awaiting bariatric surgery)
Date of first enrolment01/05/2015
Date of final enrolment01/08/2016

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

St Mary's Hospital Manchester
5th Floor (Research)
St. Mary's Hospital
Oxford Road
Manchester
M13 9WL
United Kingdom

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
HRA research summary 28/06/2023 No No
Participant information sheet Participant information sheet 11/11/2025 11/11/2025 No Yes

Editorial Notes

29/12/2015: The recruitment end date has been extended to 01/08/2016 from 01/11/2015.