Observational studyCirculation. Genomic and precision medicine2026
Evaluation of Women With Peripartum or Dilated Cardiomyopathy and Their First-Degree Relatives: The DCM Precision Medicine Study.
Observational study in Circulation. Genomic and precision medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03037632 (Precision Medicine for Dilated Cardiomyopathy in European and African Ancestry), which is not on this map. Not yet cited in PubMed.
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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
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Precision Medicine for Dilated Cardiomyopathy in European and African Ancestry
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31 authors.
Funding
Abstract
backgroundRare variant genetics have been associated with peripartum cardiomyopathy (PPCM), but the role of genetics remains unsettled. The study sought to compare dilated cardiomyopathy (DCM) genetic risk in first-degree relatives (FDRs) of female patients (probands) with DCM or PPCM to gain causal inference, and to assess DCM-relevant rare variant prevalence in DCM/PPCM probands and population controls.
methodsClinical and genetic data were analyzed from the DCM Precision Medicine Study. Risk of DCM or partial DCM, where partial DCM was defined as left ventricular enlargement or a left ventricular ejection fraction of <50%, was estimated in 665 FDRs from 452 female probands, all of whom had been pregnant; 67 had PPCM and 385 had DCM; prevalence of pathogenic, likely pathogenic, or uncertain significance variants was estimated among probands.
resultsThe risk of DCM/partial DCM for FDRs of PPCM probands was similar to that for FDRs of DCM probands (hazard ratio, 0.77 [95% CI, 0.47-1.28]). Estimated DCM prevalence among the lowest-risk FDRs of non-Hispanic European ancestry probands with PPCM (7.0% [95% CI, 0%-14.1%] females, 9.0% [95% CI, 1.6%-16.3%] males) exceeded population estimates from a UK Biobank study (0.30% females, 0.63% males). Estimated prevalences of a pathogenic, likely pathogenic, or uncertain significance variant among African ancestry and European ancestry probands with PPCM were 55.4% (95% CI, 33.1%-77.7%) and 66.0% (95% CI, 38.6%-93.3%), respectively. The estimated prevalence of pathogenic/likely pathogenic variants among European ancestry PPCM probands (26.6% [95% CI, 12.6%-40.6%]) exceeded a population estimate from a UK Biobank study (0.6%).
conclusionsThe risk of DCM/partial DCM among FDRs was similar regardless of whether their probands had PPCM or DCM. Also, DCM-relevant rare variant findings for females with PPCM or DCM were similar and greater than in population controls, suggesting a similar causal basis for PPCM and DCM. These findings underscore the need for genetic evaluations in all patients with PPCM. REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: NCT03037632.
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