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Pregnancy outcomes with increased clomiphene citrate dose
1Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Women's and Children's Hospital, Los Angeles, CA 90033, USA.
Summary
Higher doses of clomiphene citrate (150-250 mg) for ovulation induction do not significantly increase adverse pregnancy outcomes. This finding is crucial for fertility treatment protocols, offering reassurance for patients and clinicians regarding higher dosage safety.
Area of Science:
- Obstetrics and Gynecology
- Reproductive Medicine
- Pharmacology
Background:
- Clomiphene citrate is a widely used medication for ovulation induction.
- Determining optimal and safe dosage is critical for successful fertility treatments.
- Concerns exist regarding potential adverse pregnancy outcomes with higher clomiphene citrate doses.
Purpose of the Study:
- To evaluate the safety of increased clomiphene citrate dosage (150-250 mg/day) on pregnancy outcomes.
- To compare adverse pregnancy event rates between standard and higher clomiphene citrate doses.
Main Methods:
- Retrospective chart review of 1910 medical records.
- Analysis of 119 pregnancies with detailed clomiphene citrate dose and outcome data.
- Comparison of pregnancy outcomes (spontaneous abortion, ectopic gestation, congenital malformations, stillbirth, normal gestation) between two dose groups (50-100 mg/day vs. 150-250 mg/day).
Main Results:
- No statistically significant differences in spontaneous abortion rates (32.1% vs. 34.3%), ectopic gestation (10.7% vs. 5.7%), congenital malformations (1.2% vs. 2.9%), or stillbirth (2.4% vs. 2.9%) were observed.
- Normal gestation rates were similar between the lower and higher dose groups (53.6% vs. 54.3%).
Conclusions:
- Increased clomiphene citrate dosage (150-250 mg/day) does not appear to elevate the risk of adverse pregnancy outcomes.
- These findings support the potential safety of utilizing higher clomiphene citrate doses in ovulation induction protocols when indicated.