Assessment and Prevention of Pain During Ovarian Stimulation in Patients With Endometriosis
Overview
- Phase
- Phase 2
- Intervention
- Letrozole
- Conditions
- Endometriosis
- Sponsor
- University of California, San Francisco
- Enrollment
- 65
- Locations
- 1
- Primary Endpoint
- Average Delta in Endometriosis Pain Score Pre and Post Stimulation With and Without Use Of Letrozole
- Status
- Active, not recruiting
- Last Updated
- 2 years ago
Overview
Brief Summary
Randomized double blinded placebo-controlled trial to evaluate the impact of ovarian hyperstimulation on endometriosis-related symptoms and to evaluate the impact of letrozole use during ovarian hyperstimulation with respect to endometriosis-related symptoms, embryo/egg quality and quantity, and pregnancy rates.
Detailed Description
Randomized double blinded placebo-controlled trial to evaluate: (1) the impact of letrozole use during ovarian hyperstimulation with respect to endometriosis-related symptoms, embryo/egg quality and quantity, and pregnancy rates, (2) the impact of ovarian hyperstimulation on endometriosis-related symptoms. There will be a total of 60 participants, 20 participants with endometriosis randomized to the placebo group, 20 participants with endometriosis randomized to the letrozole group and 20 control patients with no history of endometriosis. Letrozole and placebo medication will be started on the first day of gonadotropin injections and continued until the day of trigger shot. Medication will be restarted the night of egg retrieval and continued for 2 weeks post retrieval. Endometriosis associated symptoms will be evaluated using a survey modeled after the clinical survey developed by the World Endometriosis Research Foundation Endometriosis Phenome and Biobanking Harmonisation Project. Surveys will be administered at baseline ultrasound appointment for controlled ovarian hyperstimulation cycle, the day of trigger shot, 3 weeks following egg retrieval, 6 weeks following egg retrieval and 12 weeks following egg retrieval.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Age 18-42 years
- •Planning to undergo controlled ovarian hyperstimulation
- •Prior diagnosis of endometriosis by one of the following: (1) surgical diagnosis (2) endometrioma on pelvic ultrasound
- •Planning to freeze all retrieved oocytes/embryos prior to transfer
Exclusion Criteria
- •Hypersensitivity to letrozole
- •Any significant concurrent disease, illness, or psychiatric disorder that would compromise patient safety or compliance, interfere with consent, study participation, follow-up, or interpretation of study results
Arms & Interventions
Endometriosis Letrozole
Participants will be asked to take 5mg letrozole daily throughout their ovarian stimulation and for 2 weeks following retrieval. Participants will be blinded to their randomization to letrozole. Participants will be asked to complete surveys during their stimulation and up to 12 weeks following retrieval to evaluate endometriosis associated symptoms. Specifically, surveys will be administered at baseline ultrasound appointment for controlled ovarian hyperstimulation cycle, the day of trigger shot, 3 weeks following egg retrieval, 6 weeks following egg retrieval and 12 weeks following egg retrieval. There will be a total of 20 participants in this arm.
Intervention: Letrozole
Endometriosis Placebo
Participants will be asked to take one tablet placebo daily throughout their ovarian stimulation and for 2 weeks following retrieval. Participants will be blinded to their randomization to placebo. Participants will be asked to complete surveys during their stimulation and up to 12 weeks following retrieval to evaluate endometriosis associated symptoms. Specifically, surveys will be administered at baseline ultrasound appointment for controlled ovarian hyperstimulation cycle, the day of trigger shot, 3 weeks following egg retrieval, 6 weeks following egg retrieval and 12 weeks following egg retrieval. There will be a total of 20 participants in this arm.
Intervention: Placebo oral tablet
Outcomes
Primary Outcomes
Average Delta in Endometriosis Pain Score Pre and Post Stimulation With and Without Use Of Letrozole
Time Frame: Baseline ultrasound (day 2 of menstrual cycle) and day 12 (average day of trigger shot).
To evaluate how letrozole impacts pain scores throughout controlled ovarian hyperstimulation in patients with endometriosis. Pain scores will be evaluated using a 0-10 visual acuity scale, where 0 is no pain and 10 is the worst imaginable pain. The average delta between pre-stimulation pain score and day of trigger shot pain score will be compared between patients with endometriosis receiving placebo and with endometriosis receiving letrozole.
Secondary Outcomes
- Follicular Fluid(Baseline ultrasound (day 2 of menstrual cycle) and day 14 (average day of egg retrieval).)
- Pregnancy Outcomes(Up to 2 years.)
- Does Letrozole Impact Embryo and Egg Quantity in Endometriosis(Baseline ultrasound (day 2 of menstrual cycle) and day 14 (average day of egg retrieval).)
- Egg Maturity(Baseline ultrasound to time of cryopreservation of eggs/embryos, which occurs within 7 days of retrieval..)
- Average Delta in Endometriosis Pain Score Pre and Post Stimulation Compared to No Endometriosis(Baseline ultrasound (day 2 of menstrual cycle) and day 12 (average day of trigger shot).)
- Trend in Endometriosis Pain Score Pre and Post Stimulation With Use Of Letrozole(Pre-stimulation through 12 weeks post retrieval)
- Embryo Grade(2 weeks)