COMPASS - COpenhagen MenoPAuSe Study
Copenhagen Menopause Study (COMPASS): A Randomized Clinical Trial
Martin Blomberg Jensen
192 participants
Oct 2, 2025
INTERVENTIONAL
Conditions
Summary
During menopause, estrogen levels drop while the level of another hormone - LH (luteinizing hormone) substantially increases. This hormonal shift is linked to bone Loss and other complications. Estrogen therapy can help, but some women avoid it due to the increased risk of blood clots and cancer. This project will investigate whether blocking LH could offer a safe alternative to alleviate symptoms and complications of menopause since it is known from previous research that high LH levels contribute to both bone deterioration and metabolic issues. The goal is to explore new treatment options that can improve health and quality of life for women both during and after menopause. This randomized clinical trial is a single center, sponsor-investigator-initiated single-blinded 8 weeks clinical trial with four parallel groups comparing the effect of an gonadotropin releasing hormone(GnRH)-analog with placebo, and with two additional arms given estrogen or testosterone on change on bone health in postmenopausal women with moderate-to-severe symptoms.
Eligibility
Inclusion Criteria12
- Women >40 years and ≤65 at screening visit
- A body mass index between 18-35
- Confirmed menopause
- Method 1
- Spontaneous amenorrhea for ≥12 consecutive months
- Negative urine hCG test
- Method 2
- Spontaneous amenorrhea for ≥6 months
- FSH >30 mIU/L
- Negative urine hCG test
- Moderate to severe vasomotor symptoms (VMS)
- Within the 7 days prior to randomization, participants must report ≥ 14 moderate to severe VMS per week
Exclusion Criteria21
- Current or previous hormone replacement therapy (HRT)
- Vaginal estradiol/vaginal inserts (e.g. Vagifem®) can be used, but will have to be pause 2 weeks prior to randomization and throughout the study period
- Menopausal Hormone Therapy (MHT) can be used by participants, but must be paused 6 weeks prior to inclusion.
- Current or previous cancer diagnosis
- Except for basal cell carcinoma
- Known BRCA gene mutation
- Current hyperthyroid disease
- Osteoporosis
- Major psychiatric diagnosis including ongoing medication e.g. selective serotonin re-uptake inhibitors (SSRIs)
- Known prolonged QT or other known clinically significant abnormal ECG, including taking medication that can prolong QT interval (e.g. sotalol, dronedarone, amiodarone, methadone, and several antipsychotic drugs)
- Previous myocardial infarction or heart failure
- Previous thromboembolic event
- The use of opioids, anticoagulating treatment or unwilling to pause fish oil/Omega-3 supplements 3 days prior visit 1 and 3
- Current alcohol or drug abuse
- Hypertension treated with more than two drugs
- Severe history of allergy, hypersensitivity, or intolerance to drugs
- Moderate to severe liver and kidney disease (eGFR <60 mL/min)
- Diagnosed with type 1 or 2 diabetes
- Chronic diseases requiring immunomodulatory treatments such as rheumatoid arthritis, inflammatory bowel disease, and vasculitis etc.
- Known uterine fibroids, Endometriosis, Systemic lupus erythematosus (SLE), otosclerosis, severe migraine or sleep apnea
- Known Epilepsy or previous seizures or convulsive disorder
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Interventions
Pamorelin 11.25 mg intramuscular injection once
Saline intramuscular injection once
Estreva gel 1.5 mg daily
Tostran gel 10 mg every other day
Placebo gel every day or every other day
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT07254429