ED Patient's Perceptions and Acceptability Toward a Novel POC HCV Viral Load Testing

NCT ID: NCT03767231

Last Updated: 2025-11-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-11-30

Study Completion Date

2027-11-30

Brief Summary

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Hepatitis C virus (HCV) infection has become the leading fatal infectious disease in the United States. Approximately 75% of individuals who have been infected with HCV are chronically infected with the virus. Untreated chronic infection will lead to severe sequelae such as cirrhosis and hepatocellular carcinoma. Even though the availability of rapid HCV antibody (HCV Ab) screening assay and highly effective antiviral treatment, most people infected with HCV are not aware of the infection status. This gap mainly comes from the current gold standard confirmatory testing for chronic HCV infection, the Polymerase Chain Reaction (PCR)-based HCV RNA viral load assay which requires an experienced trained laboratory technician to perform relatively complicated PCR assay with a turn-around-time of 1 to 2 days (from provider's order to the test resulting). The investigators' rapid HCV Screening and Linkage to Care program has demonstrated that many patients in the investigators' emergency department (ED) are unaware of patient's chronic HCV infection status due to the barriers to receive the gold standard viral load testing.

Recently, a novel Xpert HCV Viral Load (VL) Finger-stick (FS) \[Xpert HCV VL FS\] point-of-care (POC) test (Cepheid) has been developed. In an observational cohort in Australia, HCV RNA was detected in 40% of participants (85 of 210) enrolled at 3 drug treatment clinics and 1 homelessness service. Sensitivity of the Xpert HCV VL FS assay for HCV RNA quantification in samples collected by finger-stick was 100.0% (95% Confidence Interval (CI), 93.9%-100.0%) and specificity was 100.0% (95% CI, 96.6%-100.0%). The Xpert HCV VL FS test can accurately detect active infection from a finger-stick sample in 1 hour allowing single-visit HCV diagnosis.

In this protocol, the investigators seek to determine the needs and acceptability of a novel POC HCV viral load testing assay among ED HCV Ab positive patients. For this project, the investigators will identify and enroll ED patients with HCV Ab positive but without HCV viral information. The investigators will conduct a randomized study to assign eligible and consented patients to either to POC Testing Group or Standard of Care (SOC) Group. All participants will take a short survey regarding HCV care and treatment. As part of the investigators' ED HCV Screening and Linkage to Care Program, all participants will receive the standard-of-care clinical laboratory-based HCV RNA viral load testing via whole blood (i.e. patient will receive blood drawn). This standard-of-care HCV viral load testing result will be provided to participant when it is available (usually 1-2 days later). Participants in the POC Testing Group will receive the novel POC HCV RNA viral load testing and the result of the novel test will be disclosed to the patients approximately within 2 hours of the testing. Linkage to care information after the ED visit will be compared between two groups. Finally, accuracy of this POC HCV RNA viral load testing in the acute care setting will be determined as compared to the standard-of-care clinical laboratory-based HCV RNA viral load testing. The investigators will also ask all of participants to grant permission to use the remnant blood specimens for an evaluation of future in-house HCV RNA viral load assay.

Detailed Description

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Johns Hopkins Emergency Department-Based Rapid HCV Screening and Linkage to Care Program

Johns Hopkins Hospital Emergency Department (JHHED) has implemented an ED-based rapid HCV Screening and Linkage to Care Program since late 2015, after adapting the 2012 Centers for Disease Control and Prevention (CDC) revised HCV testing recommendations. The investigators' program utilizes an integrated, triage nurse driven model to deliver opt-out HCV testing to eligible ED patients. Eligibility was facilitated by electronic health record (EHR) prompts to identify patients over the age of 17 years and no HCV testing history at the institution. For patients who were medically/surgically stable and who did not have altered mental status, an opt-out HCV Ab test offering was delivered by staff. JHHED utilizes the blood-based anti-HCV assay (Abbott Architect) and fingerstick POC HCV assay (OraSure) for HCV Ab testing, depending on the availability of patient's whole blood drawn for his/her ED care. HCV reflex RNA testing is performed for HCV Ab reactive patients tested by blood-based HCV Ab assay. Blood specimens for HCV RNA testing are collected during the ED visit (if possible) for HCV Ab reactive patients tested by POC HCV Ab assay with confirmatory testing performed asynchronous to the ED visit. JHHED utilized dedicated linkage to care program staff that contacted ED patients with HCV Ab reactive results to deliver confirmatory results and facilitate referral to HCV care. The investigators' program staff also identify HCV Ab positive patients without HCV RNA viral load information by screening the ED tracking board (EPIC) to inform ED providers of ordering HCV RNA viral load testing which might need to have blood drawing if there is no blood work ordered in place.

Routine Care All JHHED patients are eligible for HCV screening or linkage to care service under the investigators' ED-based rapid HCV Screening and Linkage to Care Program if participants are 18 years and older, no history of HCV diagnosis or testing, and do not have altered mental status. Please see the brief description of the investigators' program above.

Recruitment A. Steps for recruiting participants with known HCV antibody positive but no HCV viral load data

1. The ED HCV Screening and Linkage to Care (LTC) Program will screen the ED tracking board (EPIC) for patients who potentially meet study enrollment criteria (i.e. not possessing any exclusion criteria), which is done routinely as a part of standard of care. The ED HCV Screening and LTC team will notify the research coordinator of all eligible patients.
2. Research coordinator will then approach the treating ED clinician for his/her patients regarding the research opportunity in the investigators' study.
3. Providers may refer eligible patients to research coordinator after getting permission from patients. Providers who are part of the investigators' study team will refer the eligible patients to research coordinator after patients agree to be approached by the investigators' research coordinator regarding the investigators' study.

For providers who are not in the investigators' study team, the recruitment procedure will be that the patient's clinician will request permission from patients and document in the chart regarding the patient's permission to be contacted by the research staff.

B. Steps for recruiting participants with newly diagnosed HCV antibody positive identified from ED HCV Screening and Linkage to Care Program

1. Research coordinator will work closely with ED HCV Screening and Linkage to Care Program staff to recruit this subgroup of ED patients. Screening Program staff will notify the research coordinator via pager (or equivalent) when an ED patient is diagnosed with HCV Ab reactive result via the Screening Program.
2. Research coordinator will then approach the treating ED clinician for his/her patients regarding the research opportunity in the investigators' study.
3. Providers may refer eligible patients to research coordinator after getting permission from patients. Providers who are part of the investigators' study team will refer the eligible patients to research coordinator after patients agree to be approached by the investigators' research coordinator regarding the study.

For providers who are not in the investigators' study team, the recruitment procedure will be that the patient's clinician will request permission from patients and document in the chart regarding the patient's permission to be contacted by the research staff.

Enrollment The research coordinator will obtain oral, informed consent. The process will involve a description of the study as provided in the verbal consent form with a chance to provide answers to any questions about the study. Justification for verbal consent is provided in the electronic Institutional Review Board (e-IRB) application. Specifically, this study poses minimal risk to patients. The consent process will take between approximately 15-20 minutes, based on the requirements of the individual patient.

Consented subjects will be given a copy of the oral consent document for participant's information and records. In this consent, the patient will be asked for permission to review patient's medical charts at Johns Hopkins Hospital for the clinical information of the ED visit and subsequent HCV-related visits. In addition, the patient will be asked for permission to allow the investigators to use the remnant blood specimen of this study in the future for an evaluation of an in-house HCV RNA viral load assay. Consented patients will be randomized to one of two groups, HCV POC Testing Group or Standard of Care (SOC) Group. The testing group will receive the POC HCV viral load testing via fingerstick using a novel Xpert HCV Viral Load Finger-stick (Xpert HCV VL FS) point-of-care (POC) test and the reference group will not receive this POC VL testing. Both groups will receive stand of care conventional laboratory-based whole blood HCV VL testing. Consented patients in both groups will fill out a short survey regarding participant's socio-demographic information as well as participant's experience, attitudes, and perceptions regarding HCV testing and care

Conditions

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Hepatitis C

Keywords

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viral load testing point of care

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

HEALTH_SERVICES_RESEARCH

Blinding Strategy

NONE

Study Groups

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HCV POC VL Group

This group will receive the POC HCV viral load testing via fingerstick using the novel Xpert HCV Viral Load Finger-stick Point-of-Care test (Cepheid) in addition to the standard-of-care whole-blood conventional laboratory-based HCV PCR viral load testing. Participants in this group will also fill out a short survey regarding participant's socio-demographic information as well as participant's experience, attitudes, and perceptions regarding HCV testing and care.

Group Type EXPERIMENTAL

Xpert HCV Viral Load Finger-stick Point-of-Care test (Cepheid)

Intervention Type DIAGNOSTIC_TEST

The investigators will randomly assign eligible and consented patients to either to HCV POC VL Group or Reference Group. All participants will take a short survey regarding HCV care and treatment. As part of the investigators' ED HCV Screening and Linkage to Care Program, all participants will receive the standard-of-care clinical laboratory-based HCV RNA viral load testing via whole blood (i.e. patient will receive blood drawn). This standard-of-care HCV viral load testing result will be provided to participant when it is available (usually 1-2 days later). Participants in the HCV POC VL Group will receive the novel POC HCV RNA viral load testing and the result of the novel test will be disclosed to the patients approximately within 1 to 1½ hours of the testing.

Reference Group

This group will receive the standard-of-care whole-blood conventional laboratory-based HCV PCR viral load testing only. Participants in this group will also fill out a short survey regarding participant's socio-demographic information as well as participant's experience, attitudes, and perceptions regarding HCV testing and care.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Xpert HCV Viral Load Finger-stick Point-of-Care test (Cepheid)

The investigators will randomly assign eligible and consented patients to either to HCV POC VL Group or Reference Group. All participants will take a short survey regarding HCV care and treatment. As part of the investigators' ED HCV Screening and Linkage to Care Program, all participants will receive the standard-of-care clinical laboratory-based HCV RNA viral load testing via whole blood (i.e. patient will receive blood drawn). This standard-of-care HCV viral load testing result will be provided to participant when it is available (usually 1-2 days later). Participants in the HCV POC VL Group will receive the novel POC HCV RNA viral load testing and the result of the novel test will be disclosed to the patients approximately within 1 to 1½ hours of the testing.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Any Johns Hopkins Emergency Department patient who has HCV antibody positive result but no HCV RNA test result in the chart
* Able to provide informed consent
* 18-100 years

Exclusion Criteria

* Patient who has a diagnosis of chronic HCV infection
* Patient with a non-reactive test result of an HCV Ab screening test
* Patient with a chief complaint of sexual assault
* Patients who are otherwise ineligible to consent due to medical condition (e.g., severe illness, altered mental status)
* Any person who has previously enrolled in this study
* Any person less than 18 years of age
* Any person who is incarcerated
* Any woman who is pregnant
* Any person who is transgender
* Any person who is sex worker
* Any person who is refugee
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Cepheid

INDUSTRY

Sponsor Role collaborator

Johns Hopkins University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Yu-Hsiang Hsieh, PhD

Role: PRINCIPAL_INVESTIGATOR

Johns Hopkins University

Locations

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Johns Hopkins University

Baltimore, Maryland, United States

Site Status

Countries

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United States

Central Contacts

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Gaby Dashler

Role: CONTACT

Phone: 410-735-7077

Email: [email protected]

Facility Contacts

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Gaby Dashler

Role: primary

References

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Related Links

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http://www.who.int/mediacentre/factsheets/fs164/en/

Hepatitis C - Fact Sheet. World Health Organization, 2017.

Other Identifiers

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IRB00171078

Identifier Type: -

Identifier Source: org_study_id