Approved Data Requests

PCODR strives to support transparency of research conducted using data accessed from the repository. PCODR provides a summary of each approved request to access data that includes:

the name of the approved user
the name of the data being accessed
the purpose of the research
an annual summary of all findings (including negative findings)

Approved Project PI	Data Requested	Research Title	Date RDUA* Signed	Application	Findings Summary
Overview and Data Analysis Examples of the Comprehensive Post-Acute Stroke Services Study (COMPASS), a Pragmatic Trial of Post-Stroke Transitional Care Attendees	Comprehensive Post-Acute Stroke Services (COMPASS) Study, North Carolina, 2016-2018 (PCODR 38185)	Overview and Data Analysis Examples of the Comprehensive Post-Acute Stroke Services Study (COMPASS), a Pragmatic Trial of Post-Stroke Transitional Care Summer Program Workshop	08/07/2025-08/08/2025	N/A	N/A
Opal Ousley	Comparing Two Ways to Manage Symptoms for Patients Who Have Chronic Migraine and Frequent Medication Use (The MOTS Trial), United States, 2017-2020 (PCODR 38546)	Studying the Impacts of Migraines on Anxiety and Depression	05/22/2025	Project 54797
Zoran Bursac	Comparing Two Ways to Manage Symptoms for Patients Who Have Chronic Migraine and Frequent Medication Use (The MOTS Trial), United States, 2017-2020 (PCODR 38546)	Longitudinal Analysis of Factors Influencing Anxiety and Depression in Chronic Migraine Patients: A Study using MOTS Trial	04/03/2025	Project 50849
Patrick Guziewicz	HERO Registry: Creating and Using a Community Registry to Understand the Experiences of Healthcare Workers and Their Communities during COVID-19, United States, 2020-2022 (PCODR 39153)	Burnout, Social Support, and the Stress Process Among Healthcare Workers During the COVID-19 Pandemic	04/01/2025	Project 56365
Long Nguyen	Open Label, Randomized, Multicenter, Comparative Effectiveness Trial of Specific Carbohydrate and Mediterranean Diets to Induce Remission in Patients with Crohn’s Disease (DINE-CD), United States, 2017-2020 (PCODR 38590)	Meta-analysis of the Gut Microbiome in Inflammatory Bowel Disease	03/31/2025	Project 55539
Fan Li	Aspirin Dosing: A Patient-Centric Trial Assessing Benefits and Long-term Effectiveness (ADAPTABLE), United States, 2015-2020 (PCODR 38609)	Multiply robust estimation for causal survival analysis with treatment noncompliance	03/18/2025	Project 55875
Rosalba Radice	Aspirin Dosing: A Patient-Centric Trial Assessing Benefits and Long-term Effectiveness (ADAPTABLE), United States, 2015-2020 (PCODR 38609)	Causal Survival Analysis with Treatment Noncompliance Using a Semiparametric Transformation Survival Model	03/05/2025	Project 55805
Marc Buyse	Comparison of Outcomes of Antibiotic Drugs and Appendectomy (CODA), United States, 2016-2020 (PCODR 38541)	Generalized pairwise comparisons to estimate the benefit risk of using antibiotics over Appendectomy for Appendicitis	01/27/2025	Project 45557
Accessing/Using Clinical Trial Data from PCODR & Other Data Sources: Highlighting the COMBINE Study Attendees	Comparative Effectiveness of Anti-TNF in Combination with Low Dose Methotrexate vs Anti-TNF Monotherapy in Pediatrics Crohn’s Disease (COMBINE), United States, 2015-2022 (PCODR 38680)	Accessing/Using Clinical Trial Data from PCODR & Other Data Sources: Highlighting the COMBINE Study Summer Program Workshop	07/22/2024	N/A	N/A
James Haws	Study to Promote Innovation in Rural Integrated Telepsychiatry (SPIRIT), Arkansas, Michigan, and Washington, 2016-2020 (PCODR 38542)	Differential item functioning and measurement invariance of the PCL-5	08/05/2024 (last extended on 08/01/2025)	Project 45991	Annual Report
Overview and Data Analysis Examples of the Comparison of Outcomes of Antibiotic Drugs and Appendectomy (CODA) Randomized Clinical Trial Attendees	Comparison of Outcomes of Antibiotic Drugs and Appendectomy (CODA), United States, 2016-2020 (PCODR 38541)	Overview and Data Analysis Examples of the Comparison of Outcomes of Antibiotic Drugs and Appendectomy (CODA) Randomized Clinical Trial Summer Program Workshop	08/10/2023-08/11/2023	N/A	N/A
James McAuley	Targeted Interventions to Prevent Chronic Low Back Pain in High Risk Patients: A Multi-Site Pragmatic Randomized Controlled Trial (TARGET Trial), 4 U.S. cities, 2016-2019 (PCODR 38145)	Transportability of Analgesic Medicines for Low Back Pain	07/13/2023 (last extended on 07/30/2025)	Project 42183	Annual Report

*RDUA stands for Restricted Data Use Agreement. Access to the data expires one year from the date the Restricted Data Use Agreement was signed by the Institutional Representative. Six-month extensions are granted on a case-by-case basis. Summer Program Workshop temporary RDUAs only provide access for the duration of the workshop.