Tier 2 — strong

Questionable Evidence for Berberine in Polyendocrine Metabolic Ovarian Syndrome: An Integrity-Based Reappraisal

Perera E, Mantzioris E, Moran L, Scannell N, Villani A, Rao V, Mousa A, Flannagan M, Ee C
Advances in therapy 2026

Bibliography

PubMed
PMID 42836929
DOI
10.1007/s12325-026-03799-7
Funding
The authors reported no study sponsorship; open-access costs were covered through a Western Sydney University institutional agreement.
Competing interests
A complete competing-interest declaration was not available in the accessible source; no absence of conflicts is inferred.

Study snapshot

DesignSystematic review and meta-analysis
ModelPublished human studies
Sample4 eligible trials; 452 reported participants
InterventionEvidence synthesis; interventions and comparators vary across included studies
DurationNo new treatment; included-study durations vary
EndpointsPooled clinical or metabolic outcomes; Risk of bias and heterogeneity; Adverse-event reporting

What the study showed, in plain terms

This 2026 appraisal excluded all four eligible trials from quantitative synthesis because of unresolved integrity concerns. It concluded that reliable PCOS efficacy conclusions could not be drawn.

Key findings

  • This 2026 appraisal excluded all four eligible trials from quantitative synthesis because of unresolved integrity concerns. It concluded that reliable PCOS efficacy conclusions could not be drawn.

What this study can and cannot tell us

Its search was English-language only and had specific preparation/attribution criteria; it does not establish that every PCOS berberine publication is fraudulent.

Related papers in the corpus

Tier 4
A clinical study on the short-term effect of berberine in comparison to metformin on the metabolic characteristics of women with polycystic ovary syndrome
Wei W et al. · European journal of endocrinology · 2012
Tier 4
The use of berberine for women with polycystic ovary syndrome undergoing IVF treatment
An Y et al. · Clinical endocrinology · 2014
Tier 4
Study on the Effect of Berberine, Myoinositol, and Metformin in Women with Polycystic Ovary Syndrome: A Prospective Randomised Study
Mishra N et al. · Cureus · 2022
Tier 4
Effect of Berberine Phytosome on reproductive, dermatologic, and metabolic characteristics in women with polycystic ovary syndrome: a controlled, randomized, multi-centric, open-label clinical trial
Di Pierro F et al. · Frontiers in pharmacology · 2023
Tier 2
The effect of berberine on obesity indices: a systematic review and meta-analysis
Elahi Vahed I et al. · International journal of obesity (2005) · 2026

Citation network

Articles citing this research paper

6 articles

Biohack Blueprint analyses that reference this study in their evidence base.

Editorial review

Reviewed by the Biohack Blueprint research team

Last verified

Dr. Khaled Mahmoud, MBBChCritical Care Medicine, Longevity Science & Editorial Direction Dr. Amr Yasser, PhDCardiometabolic, Musculoskeletal, Gut & Bioavailability Dr. Abdulla Mostafa, PhDCellular Senescence, Neurological, Mitochondrial & Brain-Ageing Biology