SynthesisReproductive sciences (Thousand Oaks, Calif.)2024
Comparison of Letrozole and Clomiphene Citrate in Pregnancy Outcomes in Patients with Polycystic Ovary Syndrome: A Systematic Review and Meta-analysis.
Synthesis in Reproductive sciences (Thousand Oaks, Calif.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.
- Combined Letrozole and Clomiphene Citrate Versus Letrozole Alone in Ovulation Induction for Polycystic Ovarian Syndrome Patients: A Systematic Review and Meta-analysis of Randomized Controlled Trials.Reproductive sciences (Thousand Oaks, Calif.) · 2025Pooled it
- Dominant Follicle Size as a Predictor of Pregnancy in Letrozole Intrauterine Insemination.Journal of clinical medicine · 2026Article
- Fertility treatment and risk of cerebral palsy: has the association changed in Australia?Human reproduction (Oxford, England) · 2026Article
- Natural Bioactive Compounds in Polycystic Ovary Syndrome: Properties, Molecular Mechanisms, and Therapeutic Potential.International journal of molecular sciences · 2026Review
- Letrozole yields superior pregnancy outcomes and safety profile compared with clomiphene citrate in intrauterine insemination cycles: a propensity score matching analysis.American journal of translational research · 2026Article
- Integrative Approaches to Ovulation Induction in Polycystic Ovary Syndrome: A Narrative Review of Conventional and Complementary Therapies.Biomedicines · 2025Review
- Efficacy of Monotherapy Letrozole Versus Methotrexate for the Management of Ectopic Pregnancy: A Systematic Review and Meta-Analysis of Comparative Studies.Journal of clinical medicine · 2025Review
- Treatment Options for Managing Anovulation in Women with PCOS: An Extensive Literature Review of Evidence-Based Recommendations for Future Directions.Life (Basel, Switzerland) · 2025Review
- Pharmacological and Non-Pharmacological Interventions for Polycystic Ovary Syndrome (PCOS) in Indian Women: A Systematic Review and Meta-Analysis.Pharmaceuticals (Basel, Switzerland) · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 10 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Clomiphene citrate (CC) and letrozole are the predominant medical interventions for the management of infertility in patients with polycystic ovary syndrome (PCOS). To comprehensively summarize the evidence, a systematic review and meta-analysis of randomized clinical trials (RCTs) was carried out to assess the effect of letrozole and CC on pregnancy outcomes in PCOS patients. We searched PubMed/MEDLINE, Scopus, and Cochrane Central Register of Controlled Trials from inception to January 2023. We included RCTs conducted on PCOS women comparing letrozole to CC and assessing endometrial thickness, the number and size of follicles, and ovulation and pregnancy rates. The endpoints were summarized as risk ratio (RR) or standardized mean difference (SMD) with 95% confidence interval (CI) using the random-effects model. Heterogeneity was examined using the I
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.