Sage Journals: Discover world-class research

Retricted access

Research article

First published 2011-12

Group sequential trials revisited: Simple implementation using SAS

John Whitehead

Statistical Methods in Medical Research

Retricted access

Other

First published 1995-4

Group Sequential Monitoring of Multi-Armed Clinical Trials

Nancy L. Geller, Michael A. Proschan, Dean A. Follmann

Therapeutic Innovation & Regulatory Science

Retricted access

Other

First published 1999-4

Group Sequential Monitoring of Multi-Armed Clinical Trials

Nancy L. Geller, Michael A. Proschan, Dean A. Follmann

Therapeutic Innovation & Regulatory Science

Open access

Research article

First published 2017-10

Group sequential designs for stepped-wedge cluster randomised trials

Michael J Grayling, James MS Wason, Adrian P Mander

Clinical Trials

Free access

Research article

First published 2018-6

Group Sequential Clinical Trial Designs for Normally Distributed Outcome Variables

Michael J. Grayling, James M. S. Wason, Adrian P. Mander

The Stata Journal: Promoting communications on statistics and Stata

Retricted access

Other

First published 2001-10

Interim Monitoring of Group Sequential Trials Using Spending Functions for the Type I and Type II Error Probabilities

Sandro Pampallona, Anastasios A. Tsiatis, KyungMann Kim

Therapeutic Innovation & Regulatory Science

Retricted access

Research article

First published 2022-12

Evaluating group-sequential non-inferiority clinical trials following interim stopping: The HIV Prevention Trials Network 083 trial

Brett S Hanscom, Deborah J Donnell, Thomas R Fleming [...]

Clinical Trials

Open access

Research article

First published 2025-8

Group sequential analysis of marked point processes: Plasma donation trials

Kecheng Li, Richard J Cook

Statistical Methods in Medical Research

Retricted access

Research article

First published 2000-10

An overview of group sequential methods in longitudinal clinical trials

Bart Spiessens, Emmanuel Lesaffre, Geert Verbeke [...]

Statistical Methods in Medical Research

Retricted access

Other

First published 1995-10

Group Sequential Monitoring of Clinical Trials with Multivariate Outcomes

Sandra J. Lee

Therapeutic Innovation & Regulatory Science

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