CONSORT and SPIRIT 2025 Updates Aim to Unify Clinical Trial Reporting Standards

Clinical trial reporting guidelines exist to ensure that published research is transparent, reproducible, and trustworthy — foundational pillars of evidence-based medicine. Since Dr. David Sackett's pioneering work in 1981, the field has progressively developed standards to help clinicians and researchers appraise trial data with confidence. The CONSORT statement, first published in 1996, and the SPIRIT guidelines, introduced in 2013, have been the two cornerstone frameworks for reporting completed trials and trial protocols, respectively. Until 2025, these two frameworks had never been updated in tandem.

In April 2025, both guidelines were revised simultaneously for the first time, an intentional effort to harmonize their requirements. The 2025 CONSORT update, published April 14 by Hopewell and colleagues, features a restructured 30-item checklist incorporating seven new items, revisions to three existing items, and integration of key extensions such as CONSORT-AI. Notably, a new Open Science section recommends making research artifacts — including protocols, data, and analytical code — publicly available. The 2025 SPIRIT update, published April 28 by Chan and colleagues, presents a 34-item checklist with two new protocol items, five revised items, and five removed items. New additions address patient-public engagement in trial design, harm assessment, and an Open Science section mirroring CONSORT's approach.

Both updates were grounded in a rigorous development process: an extensive international online survey involving 317 participants was followed by a two-day expert consensus meeting with 30 international experts. Crucially, the same participant pool was used for both guidelines, enabling alignment between the two frameworks and reducing redundancy for trial investigators who must comply with both.

Despite these advances, the editorial identifies significant implementation challenges. The combined CONSORT 2025 and SPIRIT 2025 checklists now span 12 pages, a dramatic expansion from the original half-page CONSORT checklist of 1996. The EQUATOR Network library currently catalogues 32 CONSORT extensions and 10 SPIRIT extensions, meaning most clinical trials will require investigators to consult multiple overlapping documents. Furthermore, a persistent and well-documented problem is that guideline endorsement does not reliably translate into improved trial reporting quality — suggesting that checklists alone are insufficient without enforcement mechanisms.

Looking ahead, the editorial highlights the Transparency and Openness Promotion (TOP) guidelines, currently being updated, as a complementary framework that could help journals and investigators verify reported results and promote sharing of protocols, statistical analysis plans, and raw data. Future CONSORT and SPIRIT iterations may incorporate guidance on how AI tools can assist with manuscript preparation, peer review, and adherence checking — potentially helping to bridge the gap between guideline existence and consistent implementation.