ReviewActa diabetologica2026
GLP-1 receptor agonists and hair loss: adverse effect, epiphenomenon, or therapeutic paradox?
Review in Acta diabetologica, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
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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
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.
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Who cites it
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Authors and funding
2 authors.
Funding
Abstract
objectiveIncretin-based therapies, including glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and dual/triple agonists, have revolutionized the management of obesity and type 2 diabetes. However, hair loss has emerged as an adverse event in clinical practice. This review synthesizes the evidence on the prevalence, mechanistic pathways, and clinical course of hair loss associated with semaglutide, tirzepatide, and retatrutide.
methodsA narrative review was conducted using the PubMed/MEDLINE database. Data were integrated from clinical trials, real-world observational studies, and pharmacovigilance databases to evaluate the oncological and dermatological implications of these therapies.
resultsThere is a discrepancy in hair loss prevalence, ranging from 3 to 7% in controlled trials to over 70% in real-world cohorts. Telogen effluvium (TE) is the predominant phenotype, driven primarily by the magnitude and velocity of weight loss rather than drug toxicity. Newer agents like tirzepatide demonstrate stronger associations with hair shedding compared to older GLP-1 RAs. Pharmacovigilance data show inconsistent but significant signals for semaglutide and tirzepatide, with reporting odds ratios indicating a drug-associated risk. Conversely, paradoxical improvements in androgenetic alopecia and inflammatory scarring alopecias have been reported, likely mediated by metabolic normalization and anti-inflammatory effects. Female sex and significant weight reduction (> 10%) were the most robust predictors of hair loss.
conclusionHair loss associated with incretin-based therapies is a biologically complex, threshold-dependent phenomenon reflecting systemic metabolic reprogramming. While predominantly transient and reversible, its psychological impact can compromise treatment adherence. Clinicians should provide proactive counseling, emphasizing the self-limiting nature of TE in this context while monitoring for diverse follicular responses.
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42873315What 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.