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COmbining Oral Letrozole and Clomiphene for Ovarian Stimulation

Evaluation of a Simplified Low-cost and Friendly Controlled Ovarian Stimulation Combining Oral Letrozole and Clomiphene Citrate: a Pilot Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02288143
Acronym
COOL-COS
Enrollment
28
Registered
2014-11-11
Start date
2015-01-31
Completion date
2015-03-31
Last updated
2015-12-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility

Brief summary

This is a pilot study evaluating the effect of a simplified low-cost (friendly) controlled ovarian stimulation using clomiphene citrate, letrozole, and low-dose hMG on the number of oocytes retrieved.

Interventions

Controlled ovarian stimulation will start on the second or third day of a menstrual cycle: * Oral clomiphene citrate: 100 mg/day until the day of the triggering. * Oral letrozole: 7.5 mg/day during the first 5 days of the controlled ovarian stimulation. * hMG: 150 IU every other day beginning on the day 6 of the controlled ovarian stimulation. The triggering will be performed using urinary hCG (5,000 IU subcutaneous). * 1-2 days after the identification of one follicle ≥ 17 mm * 0-1 days after the identification of one follicle ≥ 19 mm.

Sponsors

University of Sao Paulo
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Women scheduled to controlled ovarian stimulation for oocyte retrieval. * Body mass index: 18-35 Kg/m2. * Ultrasound scan up to the third day of a menstrual cycle with absence of a dominant and active follicle (follicle \>10mm and serum estradiol ≥ 40 pg/L). * Signing an informed consent.

Exclusion criteria

* No

Design outcomes

Primary

MeasureTime frame
Number of oocytes retrieved12 days

Secondary

MeasureTime frame
Number of embryos17 days
Ovarian hyper-stimulation syndrome1 month

Countries

Brazil

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026