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Updated: Feb 18, 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
A single center analysis of factors influencing study start-up timeline in clinical trials
Brianna M Krafcik1,1, Gheorghe Doros2,2, Marina A Malikova1,1
1Boston University, Boston Medical Center, Department of Surgery, Boston, MA, USA.
Aim:
Efficient start-up phase in clinical trials is crucial to execution. The goal was to determine factors contributing to delays.
Materials & Methods:
The start-up milestones were assessed for 38 studies and analyzed.
Results:
Total start-up time was shorter for following studies: device trials, no outsourcing, fewer ancillary services used and in interventional versus observational designs. The use of a centralized Institutional Review Board (IRB) versus a local IRB reduced time to approval. Studies that never enrolled took longer on average to finalize their budget/contract, and obtain IRB than ones that did enroll.
Conclusion:
Different features of clinical trials can affect timeline of start-up process. An understanding of the impact of each feature allows for optimization.
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