Hepatitis C Pharmacist, Physician, Patient Navigator Collaborative Care Model in Permanent Supportive Housing (HepP3)

June 18, 2026 updated by: Judith I. Tsui, University of Washington

A Hybrid Implementation-Effectiveness Study of the Pharmacist, Physician, and Patient Navigator Collaborative Care Model (PPP-CCM) to Cure Hepatitis C Among Persons Who Use Drugs With Housing Insecurity

The objective of this study is to extend our prior research by conducting a pragmatic implementation trial using a parallel-group, cluster randomized design to evaluate the PPP-CCM's ability to improve access to DAAs for HCV within a network of permanent supportive housing (PSH) buildings in Seattle and King County. The study will implement PPP-CCM to 16 housing buildings, randomizing half to receive PPP-CCM (intervention) versus usual care (UC) for 12-months, after which all buildings will have access to PPP-CCM. All buildings will have access to point-of-care HCV screening for the first 6 months of the study. Study outcome data will be collected through a longitudinal cohort-study of persons who screened positive for HCV which will conduct surveys and review of medical records at baseline, 12- and 24-months.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
444

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Washington
      • Seattle, Washington, United States, 98104
        • Recruiting
        • Harborview Medical Center
        • Contact:
          • Judith I Tsui, MD MPH
          • Phone Number: 2067441835
          • Email: tsuij@uw.edu

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Adult ≥18 years of age
  • Currently a resident at one of DESC's PSH buildings at the time of study enrollment
  • Positive HCV test documented (screening antibody test or viral load test)
  • Provides release of information (ROI) to access community pharmacy electronic medical records (EHR) and/or other HCV treatment providers for information on HCV care during the study period between baseline visit and 24-month visit

Exclusion Criteria:

  • Taking medications to treat HCV at the start of the study
  • Cognitive impairment (acute or chronic) resulting in inability to provide informed consent
  • Currently or impending incarceration
  • People who plan to leave the Seattle area within 24 months
  • Not English speaking
  • Behavioral risk posing safety concerns per discretion of research staff

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
No Intervention: Treatment-as-usual (TAU)
TAU will be usual care provided by the permanent supportive housing buildings.
Experimental: PPP-CCM
The intervention is a "Pharmacist, Physician, Patient Navigator Collaborative Care Model" (PPP-CCM) approach for expanding access to direct-acting antivirals (DAAs) for HCV. This task-shifting, collaborative care model leverages pharmacists to deliver medications-namely DAAs for HCV, as well as pre-exposure prophylaxis (PrEP) for HIV and naloxone for overdose prevention-to PWUD through "Collaborative Practice Agreements" (CPAs) with physicians in conjunction with support from patient navigators.
Other: PPP-CCM
The intervention is a "Pharmacist, Physician, Patient Navigator Collaborative Care Model" (PPP-CCM) approach for expanding access to direct-acting antivirals (DAAs) for HCV. This task-shifting, collaborative care model leverages pharmacists to deliver medications-namely DAAs for HCV, as well as pre-exposure prophylaxis (PrEP) for HIV and naloxone for overdose prevention-to PWUD through "Collaborative Practice Agreements" (CPAs) with physicians in conjunction with support from patient navigators.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
HCV Evaluation
Time Frame: 12 months
The primary outcome of interest is whether a participant received an evaluation for hepatitis C ("yes" versus "no").
12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
HCV Pre-Treatment Work-Up Completion ("Adoption")
Time Frame: 12 months
This secondary outcome measures completion of work-up needed prior to initiation of treatment.
12 months
DAA Initiation
Time Frame: 12 months
This secondary outcome is defined as the act of being prescribed and taking at least one dose of a DAA medication for HCV ("yes" versus "no").
12 months
DAA completion
Time Frame: 12 months
This secondary outcome is defined as being prescribed and having received a full course of DAA treatment with no interruption >14 days ("yes" versus "no").
12 months
Sustained Virologic Response
Time Frame: 12 months
This secondary outcome is defined as having documentation in the EHR of an undetectable HCV viral load ≥ 4 weeks after the completion of DAA treatment ("yes" versus "no").
12 months
Injection Drug Use
Time Frame: 12 months
This secondary outcome is defined as self-reported number of days of injecting drugs (a major risk factor for HIV and HCV infection/reinfection) in the past 30 days.
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Washington

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institute on Drug Abuse (NIDA)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Judith Tsui, MD, MPH, University of Washington
  • Principal Investigator: Sara Glick, PhD, University of Washington

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 18, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 18, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 24, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 24, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 18, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • R01DA062638 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings