SPIRIT Template Raises Reporting Completeness in Trial Protocol Revisions
A structured manuscript template built around SPIRIT 2025 improved the completeness of reporting in randomized trial protocols submitted to BMJ Open, adding a measurable but modest gain during peer-review revision. In a randomized controlled trial nested within the editorial process, authors asked to revise their protocols with a template organized around SPIRIT subheadings and guidance. The result was a higher adjusted completeness score in the intervention arm than in standard peer review alone, with no meaningful delay in time to revision.
The design was unusual in the best sense: the editorial office became the intervention site. Between 29 April and 27 May 2025, 70 of 74 eligible manuscripts were randomized 1:1 after first-round peer review had already led to a minor or major revision decision. Every manuscript involved a randomized trial protocol, and authors were not told they were part of a study. That setup matters because it tested a practical editorial tool in the exact setting where reporting gaps usually persist — at the point where authors are already revising, but may still be unsure how fully to map protocol content onto reporting guidance.
What Changed When Authors Received the Template
The primary endpoint was a completeness score built from 11 SPIRIT items that are often reported incompletely. Each item was scored 0, 0.5, or 1, then rescaled to a 0–10 scale and adjusted for baseline. On that measure, the intervention group improved by 0.61 points more than the control group, with a 95% confidence interval from 0.20 to 1.01. Mean scores rose from 5.42 to 6.70 in the template arm, compared with 5.77 to 6.32 in the control arm.
The size of the effect is not dramatic, but it is real. In protocol reporting, small gains can carry outsized value because missing detail at the protocol stage can cascade into later ambiguity about recruitment plans, data collection procedures, or data access arrangements. A template that forces authors to confront the SPIRIT checklist in a structured way appears to reduce that uncertainty and nudges manuscripts toward fuller transparency without requiring a separate editorial overhaul.
The strongest gains appeared in recruitment, data collection methods, and access to data. Those domains are central to protocol credibility because they determine whether a trial can realistically enroll participants, measure outcomes consistently, and preserve trust in how information will be handled. When these sections are thin, readers cannot easily judge feasibility or reproducibility. A structured template helps convert broad intentions into explicit protocol language, which is exactly where reporting standards have the most leverage.
Turnaround Time Stayed Stable Despite Added Structure
Revision speed did not deteriorate. Median time to submit the first revision was 27.10 days in the intervention group and 29.86 days in the control group, a narrow difference that argues against the template becoming a practical burden in the editorial workflow. In other words, adding structure did not lengthen the revision cycle in any obvious way.
That finding is important because the usual objection to reporting interventions is that they add friction for authors already navigating peer review. Here, the structured template changed the content of the revision without slowing the process. For editors and journal staff, that combination is clinically and operationally relevant: if completeness improves while turnaround remains steady, the intervention has a plausible path to adoption. For trial protocol literature, which depends on precision before a study begins, the efficiency signal matters as much as the reporting signal.
Still, the improvement came with some friction at the author level. Among 14 of 35 survey respondents, or 40%, many described the template as time consuming, and some called it burdensome. Yet the same respondents mostly said it was easy to use, helpful for improving the manuscript, and reassuring for adherence to SPIRIT. Those perceptions point to a familiar tension in research reporting: structured tools can feel laborious while being useful at the same time. The template seems to have been experienced less as a barrier than as a demanding checklist that clarified expectations.
Author Feedback Points to Practical Use, Not Effortless Use
The survey results add texture to the numerical gains. Of the respondents who answered the survey items, 10 of 13 found the template easy to use, 9 of 13 found it helpful for improving the manuscript, and all 13 said it was reassuring for adherence to SPIRIT. The same group also flagged time burden, with 8 of 13 calling it time consuming and 5 of 13 describing it as burdensome. Those answers are not contradictory. They describe a tool that is useful precisely because it requires concentrated attention.
No harms were systematically collected, so the evaluation cannot speak to unintended consequences in a formal safety sense. The study does not establish whether the template changes how authors approach protocol design before submission, nor does it prove that more complete reporting always translates into better study conduct. It does show that an editorial prompt embedded in revision can move the reporting score in the right direction without slowing the manuscript pipeline.
The lesson for journals is straightforward: structured templates can be deployed during revision, not just during initial submission, and they can improve protocol completeness even when editorial decisions are not contingent on using them. For trialists, the message is equally concrete. A SPIRIT-based framework can make the missing pieces visible while the manuscript is still editable, which may prevent later confusion about eligibility criteria, recruitment logistics, outcome collection, and data access.
The trial leaves some practical questions open. Uptake beyond one journal and one editorial environment remains untested, and the survey response rate limits how fully author burden can be characterized. Even so, the study provides direct evidence that a SPIRIT-based template can raise reporting completeness in randomized trial protocols without extending revision time, a result that is modest in size but operationally usable.