Co-bedding twins: how pilot study findings guided improvements in planning a larger multicenter trial
Related Experiment Video
Updated: Jul 16, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
Published on: September 20, 2019
Kathryn Hayward1, Marsha Campbell-Yeo, Sheri Price
1Dalhousie University School of Nursing, Halifax, Nova Scotia, Canada. kathryn.hayward@dal.ca
Insights
Pilot studies are crucial for developing competitive grant proposals and efficient research trials. This study used co-bedding pilot findings to refine a larger multisite trial protocol for twins, improving study design and data collection.
Area of Science:
- Neonatal care
- Developmental pediatrics
- Clinical trial methodology
Background:
- Co-bedding is a developmental care practice for twins and multiples.
- It is theorized to mitigate adverse neurodevelopmental effects from hospitalization.
Purpose of the Study:
- To assess the feasibility of study design and methods for a larger multicentered trial.
- To evaluate outcome measurement for a future twin co-bedding study.
Main Methods:
- Pilot study to inform a larger multicentered trial.
- Data collection feasibility and recruitment strategies were evaluated.
- Effect size estimation and staff organization were assessed.
Main Results:
- Findings informed effect size estimation and staff organization.
- Feasibility of data collection measures was evaluated.
- Recruitment and follow-up issues were identified for a larger trial.
Conclusions:
- Pilot studies are vital for grant proposals and efficient trial conduct.
- This pilot study refined the protocol for a larger multisite trial on co-bedding twins.
- Essential baseline information from pilot studies strengthens research proposals.
Background:
Co-bedding, a developmental care practice for twins and multiples, has been theorized as a strategy to decrease the adverse neurodevelopmental effects that may be associated with hospitalization.
Objective:
The aim of this study was to determine the feasibility of study design, methods, and the measurement of desired outcomes for the development of a larger multicentered study.
Results:
Study findings were used to estimate effect size, determine staff and bedside care organization, evaluate feasibility of data collection measures, and identify issues related to recruitment and follow-up. Results were incorporated in the development of a larger multicentered trial grant proposal.
Discussion:
Pilot studies can play an important role in the development of a competitive grant proposal and efficient conduct of a research trial. Pilot studies strengthen a proposal by providing essential baseline information. A general overview of the purpose of pilot studies is provided here, along with a description of the process of using findings from a pilot study to inform the development of a larger multisite trial. Findings from this pilot study examining the effects of co-bedding on twins and their parents are used to revise the research protocol for a larger multisite trial. These changes, which lead to improvement to the protocol, and the rational for these changes are highlighted.
Related Concept Videos
Blind Procedures
Bioavailability Study Design: Single Versus Multiple Dose Studies
Bioavailability Study Design: Healthy Subjects Versus Patients
Clinical Trials: Overview
Bioequivalence Experimental Study Designs: Repeated Measures, Cross-Over, Carry-Over, and Latin Square Designs
Clinical Trials
There are four phases in a clinical trial. A phase one...
