Initiation and continuation of randomized trials after the publication of a trial stopped early for benefit asking the same study question: STOPIT-3 study design

Prutsky, Gabriela J.; Domecq, Juan Pablo; Erwin, Patricia J.; Briel, Matthias; Montori, Victor M.; Akl, Elie A.; Meerpohl, Joerg J.; Bassler, Dirk; Schandelmaier, Stefan; Walter, Stephen D; Zhou, Qi; Coello, Pablo Alonso; Moja, Lorenzo; Walter, Martin Alexander; Thorlund, Kristian; Glasziou, Paul; Kunz, Regina; Ferreira-Gonzalez, Ignacio; Busse, Jason; Sun, Xin; ... (2013). Initiation and continuation of randomized trials after the publication of a trial stopped early for benefit asking the same study question: STOPIT-3 study design. Trials, 14, p. 335. BioMed Central 10.1186/1745-6215-14-335

[img]
Preview
Text
1745-6215-14-335.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (987kB) | Preview

BACKGROUND Randomized control trials (RCTs) stopped early for benefit (truncated RCTs) are increasingly common and, on average, overestimate the relative magnitude of benefit by approximately 30%. Investigators stop trials early when they consider it is no longer ethical to enroll patients in a control group. The goal of this systematic review is to determine how investigators of ongoing or planned RCTs respond to the publication of a truncated RCT addressing a similar question. METHODS/DESIGN We will conduct systematic reviews to update the searches of 210 truncated RCTs to identify similar trials ongoing at the time of publication, or started subsequently, to the truncated trials ('subsequent RCTs'). Reviewers will determine in duplicate the similarity between the truncated and subsequent trials. We will analyze the epidemiology, distribution, and predictors of subsequent RCTs. We will also contact authors of subsequent trials to determine reasons for beginning, continuing, or prematurely discontinuing their own trials, and the extent to which they rely on the estimates from truncated trials. DISCUSSION To the extent that investigators begin or continue subsequent trials they implicitly disagree with the decision to stop the truncated RCT because of an ethical mandate to administer the experimental treatment. The results of this study will help guide future decisions about when to stop RCTs early for benefit.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Clinic of Nuclear Medicine

UniBE Contributor:

Walter, Martin Alexander

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1745-6215

Publisher:

BioMed Central

Language:

English

Submitter:

Franziska Nicoletti

Date Deposited:

25 Jun 2014 16:27

Last Modified:

20 Mar 2018 13:24

Publisher DOI:

10.1186/1745-6215-14-335

PubMed ID:

24131702

BORIS DOI:

10.7892/boris.48319

URI:

https://boris.unibe.ch/id/eprint/48319

Actions (login required)

Edit item Edit item
Provide Feedback