Clinical Trial

Hormonal Optimization: Late vs. Immediate Start After Discontinuation of Oral Contraceptives in Assisted Reproductive technologY (HOLIDAY)

Study acronym: HOLIDAY
Recruiting
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Summary
HOLIDAY is a two-arm, parallel-group, multi-center, randomized trial in which subjects undergoing planned oocyte cryopreservation will be randomized to receive either a 2-month pause of Combined Hormonal Contraceptives (CHC) or immediate start (without a pause).
Protocol Amendment History 1 amendment
This ClinicalTrials.gov record has been amended once since 2025-11-04.
Status change: Not Yet Recruiting → Recruiting 2026-02-26
Trial Details
NCT Number NCT07225660
Lead Sponsor Shady Grove Fertility Reproductive Science Center
Collaborators: EMD Serono
Conditions Fertility Preservation
Enrollment 394 participants
Start Date 2026-02-25
Primary Completion 2027-06-01 (estimated)
Study Completion 2027-07-01 (estimated)
Updated on ClinicalTrials.gov 2026-03-02