ArticleReproductive medicine and biology
Clinical Appraisal of "Micronized Vaginal Progesterone Dose and Serum Progesterone Thresholds Determine Reproductive Outcomes in Frozen-Thawed Embryo Transfer With Hormone Replacement Therapy".
Article in Reproductive medicine and biology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This paper critically evaluates Sekiguchi et al.'s study of vaginal progesterone dose, serum progesterone thresholds, and reproductive outcomes in hormone replacement therapy frozen embryo transfer (HRT-FET) cycles. The study conflates descriptive, predictive, and causal aims without a clearly prespecified primary question, limiting interpretability. Major concerns include non-random treatment allocation, potential residual confounding, absence of a causal framework for covariate selection, unaddressed temporal confounding related to Japan's 2022 insurance reform, and exclusion of an available progesterone formulation. Additionally, formulation specific pharmacokinetics, single-time-point progesterone measurement, and internally derived thresholding limit comparability, predictive validity, and clinical applicability.
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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.