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Article Outlines Lessons Learned from First Large Pragmatic Trial Using Sentinel
A new article in Clinical Trials, co-authored by CTTI, outlines lessons learned from the planning phase of the implementation of a randomized controlled trial to improve treatment with oral anticoagulants in patients with Atrial Fibrillation (IMPACT-AFib) trial, the first large pragmatic clinical trial that used the Sentinel infrastructure. This work is part of CTTI’s larger effort to advance trials that use real-world data sources.
The FDA’s Sentinel System uses electronic health records (EHR) and insurance claims from 18 health plans and delivery systems covering about 45 million individuals enrolled in commercial health plans, in addition to 22 million Medicare recipients.
The IMPACT-AFib trial, launched in 2017 by collaborators including CTTI, identified patients with atrial fibrillation who were at high risk of stroke, and randomized them to either an early or delayed intervention. The Sentinel System helped the trial team assess the size of the potential trial population, examine baseline measurements, and determine there were significant gaps in care, which showed there was a need for the trial.
In selecting participants for the trial and conducting other planning analyses, the trial team used Sentinel’s common data model and reusable analytic programs, which accelerated the planning and budgeting for the trial while keeping member-level data safe.
The IMPACT-AFib team also considered limitations introduced by Sentinel, including the potential for misclassification due to the use of administrative claims data. Other lessons learned for developing health plan-based clinical trials include using a single IRB, involving patient representatives in protocol design, and timing the start of the trial and mailing of materials around open enrollment and other health plan initiatives.
Learn more about CTTI’s other work to increase the appropriate use of real-world data sources and real-world evidence in clinical trials for regulatory submission.
Webinar Now Available: CTTI’s New Recommendations for Engaging Patients and Sites in Mobile Trials
A recording is now available of the public webinar on Thurs., Feb. 21, to launch CTTI’s new recommendations for incorporating patient and site perspectives in mobile clinical trials. The webinar was led by patient advocate Cindy Geoghegan and Virginia Nido of Genentech, a member of the Roche Group.
CTTI conducted qualitative and quantitative research to better understand the perceptions of patients and site personnel, and convened experts and leaders across the clinical trials enterprise to develop actionable recommendations and resources.
“Patients are attracted to the possibilities of greater convenience and greater access to clinical research—fewer visits, less time away from work and family, and less burden on their caregivers,” Geoghegan said. “Our goal was to enhance the experience for both patients and hard-working site staff.”
The resulting recommendations are designed to help research sponsors engage patient and site perspectives in planning mobile trials, maximize value and minimize burden for study participants, and address challenges for investigative sites.
“One of the key messages is the importance of planning,” Nido said. “We are new to this as an industry, and we need to plan for and address these new challenges in order to maximize the benefits of mobile technology in clinical trials.”
This is the final of four sets of recommendations CTTI has released as part of its Mobile Clinical Trials (MCT) Program. In 2017, CTTI announced recommendations for developing novel endpoints generated by mobile technologies and, in 2018, it unveiled new solutions for using mobile technologies for data capture in clinical trials, and recommendations for using decentralized clinical trials. Additionally, they build on previous CTTI work—including our Quality by Design and Patient Groups and Clinical Trials recommendations—that emphasizes the involvement of many stakeholders, including patients and sites, in trial design.
CTTI Unveils New Recommendations for Incorporating Patient and Site Perspectives in Mobile Trials
CTTI released new recommendations and resources today for engaging patients and sites when planning clinical trials using mobile technologies. These recommendations have the potential to help sponsors, CROs, and other stakeholders gain the full benefits of using mobile technologies in clinical trials, including remote participation, increased protocol adherence, and participation by a more diverse population.
While buy-in from stakeholders is critical to the success of mobile trials, little was known about patient and site perspectives until CTTI conducted surveys and interviews with patients and investigative site personnel to assess perceived benefits and barriers.

The resulting recommendations have the potential to help research sponsors:
- Engage patients and sites in protocol design, technology selection, and pilot testing
- Maximize value and minimize burden for study participants by setting patient expectations, protecting privacy, returning data, enhancing patient-site interactions, and providing technical support
- Address challenges for investigative sites, from contracting and budgeting to evaluating site readiness and implementing effective and streamlined training
“CTTI’s recommendations and resources are designed to take our understanding of patient and site needs in mobile clinical trials to the next level,” said Bill Wood, associate professor at the School of Medicine at the University of North Carolina at Chapel Hill. “With these new insights, sponsors and researchers can plan and conduct mobile trials that work better for everyone involved, streamlining the clinical research process and accelerating the development of critical new therapies.”
The recommendations are the fourth set generated through CTTI’s Mobile Clinical Trials (MCT) Program, following recommendations on developing novel endpoints generated by mobile technologies, using mobile technologies for data capture in clinical trials, and planning and conducting decentralized clinical trials. Additionally, they build on previous CTTI work—including our Quality by Design and Patients Groups and Clinical Trials recommendations—that emphasizes the involvement of many stakeholders, including patients and sites, in trial design.
CTTI and FDA Workshop Will Explore How Best to Include Patient Perspectives in Clinical Trials
CTTI will convene a public workshop, “Enhancing the Incorporation of Patient Perspectives in Clinical Trials” in collaboration with the FDA on Mon., March 18, from 9:00 a.m. to 5:00 p.m. at the Tommy Douglas Conference Center in Silver Spring, Md.
The workshop will seek ideas for best practices and key considerations for enhancing the incorporation of patient perspectives on clinical trial access, design, conduct, and post-trial follow-up. It will also gather input from patients, caregivers, industry, academic researchers, and expert practitioners on the challenges and barriers to patient participation in clinical trials. CTTI and the FDA are especially interested in the perspectives of patients, caregivers, researchers, and others who have participated in clinical trials and are willing to share their experiences.
This workshop meets an FDA commitment that is part of the sixth authorization of the Prescription Drug User Fee Act (PDUFA VI). After the event, a published report on proceedings and recommendations from the workshop will be made publicly available.
Register for the workshop by March 11. Registration is free and based on space availability, with priority given to early registrants. If you are unable to attend the workshop in person, you can watch the live webcast.
Don’t miss this opportunity to make your voice heard and shape the future of clinical research!