f Post-Approval Studies (PAS) Database
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U.S. Department of Health and Human Services

Post-Approval Studies (PAS) Database

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The FDA has the authority to require sponsors to perform a post-approval study (or studies) at the time of approval of a premarket approval (PMA), humanitarian device exemption (HDE), or product development protocol (PDP) application. Post-approval studies can provide patients, health care professionals, the device industry, the FDA and other stakeholders information on the continued safety and effectiveness (or continued probable benefit, in the case of an HDE) of approved medical devices. This database allows you to search Post-Approval Study information by applicant or device information.

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PROTECT CAP Continuation PAS

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Study Status Progress Adequate
Application Number /
Requirement Number
P200031 / PAS002
Date Original Protocol Accepted 09/28/2021
Date Current Protocol Accepted  
Study Name PROTECT CAP Continuation PAS
Device Name Organ Care System (OCS™) Liver
General Study Protocol Parameters
Study Design Prospective Cohort Study
Data Source External Registry
Comparison Group No Control
Analysis Type Descriptive
Study Population Transit. Adolescent A (distinctively) : 18-21 yrs, Transit. Adolescent B (as adults) : 18-21 yrs, Adult: >21
Detailed Study Protocol Parameters
Study Objectives This single-arm study is a continued follow-up of the OCS Liver PROTECT Continued Access Protocol (CAP) cohort (premarket), designed to evaluate longer-term outcomes after transplantation with OCS-perfused livers

Study Population Patients who were transplanted in the OCS Liver PROTECT CAP study

Sample Size 74 patients who were transplanted in the PROTECT CAP study

Key Study Endpoints Main effectiveness endpoint: Liver graft survival at 24 months post-transplant

Other endpoint: patient survival at 24 months post-transplant

Follow-up Visits and Length of Follow-up 2 years
Interim or Final Data Summary
Actual Number of Patients Enrolled 74
Actual Number of Sites Enrolled 11
Patient Follow-up Rate 67/74 = 90.5%
28/40 = 70%
Study Strengths & Weaknesses This is an interim report, full evaluation is due when the full PAS is submitted.

PROTECT CAP Continuation PAS Reporting Schedule

Reporting Schedule
Date Due
FDA Receipt
Applicant's Reporting Status
6 month report 03/28/2022 03/15/2022 On Time
1 year report 09/28/2022 09/02/2022 On Time
18 month report 03/28/2023    
final report 06/30/2023    

Contact Us

Mandated Studies Program
Food and Drug Administration
10903 New Hampshire Ave.
Silver Spring, MD 20993-0002
Email: MandatedStudiesPrograms@fda.hhs.gov

Additional Resources