Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Systematic comparison of Mendelian randomisation studies and randomised controlled trials using electronic databases

Maria Sobczyk, Jie Zheng, George Davey Smith, Tom R. Gaunt

BMJ Open · 2023

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Summary

OBJECTIVE: To scope the potential for (semi)-automated triangulation of Mendelian randomisation (MR) and randomised controlled trials (RCTs) evidence since the two methods have distinct assumptions that make comparisons between their results invaluable. METHODS: We mined ClinicalTrials.Gov, PubMed and EpigraphDB databases and carried out a series of 26 manual literature comparisons among 54 MR and 77 RCT publications. RESULTS: We found that only 13% of completed RCTs identified in ClinicalTrials.Gov submitted their results to the database. Similarly low coverage was revealed for Semantic Medline (SemMedDB) semantic triples derived from MR and RCT publications -36% and 12%, respectively. Among intervention types that can be mimicked by MR, only trials of pharmaceutical interventions could b

Source type
Peer-reviewed study
DOI
10.1136/bmjopen-2023-072087
Catalogue ID
SNmoj1xv6s-m83rl0
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