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Low dose hCG plus FSH co-trigger

University of California, San Francisco · Phase 3 active Small molecule

Low-dose hCG combined with FSH acts as a dual trigger to induce final oocyte maturation and ovulation in assisted reproductive technology cycles.

Low-dose hCG combined with FSH acts as a dual trigger to induce final oocyte maturation and ovulation in assisted reproductive technology cycles. Used for Final oocyte maturation trigger in assisted reproductive technology (ART) and in vitro fertilization (IVF) cycles.

At a glance

Generic nameLow dose hCG plus FSH co-trigger
SponsorUniversity of California, San Francisco
Drug classGonadotropin combination
TargetFSH receptor and hCG receptor (LH/hCG receptor)
ModalitySmall molecule
Therapeutic areaReproductive Medicine / Fertility
PhasePhase 3

Mechanism of action

This co-trigger strategy uses human chorionic gonadotropin (hCG) and follicle-stimulating hormone (FSH) together at reduced doses to stimulate the final stages of egg maturation and trigger ovulation. The combination aims to optimize oocyte quality and reduce ovarian hyperstimulation syndrome risk compared to standard hCG-alone triggers, while maintaining efficacy in controlled ovarian hyperstimulation protocols.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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