Buprenorphine, HCV, PreP
Conditions
Brief summary
This is an open label, non-randomized, observational pilot study to evaluate a model of care for treatment of hepatitis C in people with ongoing injection drug use. Participants will be treated with direct-acting antivirals (DAA) as per standard of care and will concomittantly be offered pre-exposure prophylaxis for HIV prevention and buprenorphine for treatment of opioid use disorder when clinically indicated.
Detailed description
Hepatitis C (HCV) is a chronic infection with significant morbidity and mortality. The development of directly acting antivirals (DAA) has dramatically improved the cure rate of HCV treatment. However, despite the availability of effective therapy, the global epidemic of HCV infection continues to be driven by people with ongoing injection drug use (PWID), who are largely excluded from HCV therapy. Several critical barriers exist preventing high-risk patients' entry to care, including (1) lack of engagement in the traditional healthcare system by marginalized patient populations, and (2) insurance restrictions due to concerns regarding treatment adherence and HCV reinfection. Furthermore, ongoing injection drug use places these individuals at high risk of HIV acquisition. However, studies have repeatedly demonstrated that pre-exposure prophylaxis (PrEP) reduces HIV acquisition and opioid substitution therapy with buprenorphine reduces HIV and HCV acquisition in PWID. As such, we propose a comprehensive model of care to engage individuals with ongoing injection drug use in treatment of HCV, in conjunction with collocated services to prevent HIV acquisition and HCV reinfection, including pre-exposure prophylaxis and opioid substitution therapy. This pilot trial will demonstrate whether a comprehensive model of care can simultaneously treat HCV, and prevent HCV reinfection, HIV acquisition and effectively treat opioid use disorder.
Interventions
Participants will be treated with direct-acting antivirals per standard of care and will be concomittantly be offered PreP for HIV prevention and buprenorphine for treatment of opioid-use disorder when clinically indicated
Sponsors
Study design
Eligibility
Inclusion criteria
1. Age 18 years old 2. Able and willing to sign informed consent 3. Chronically infected with HCV, defined as any individual with documentation of positive HCV antibody and positive HCV RNA test (HCV RNA of 2,000 IU/mL or greater). 4. Willing to have samples stored for future use 5. Ongoing injection drug use, defined as self-report of either: 1. Phase 1 (first 100 enrolled participants) Injection non-prescription drug use within three months of screening visit or 2. Phase 2 (enrolled participants 101-200) Use of non-prescription opioids within twelve months of screening visit
Exclusion criteria
1. Decompensated liver disease (Childs Pugh B or C) 2. Unable to comply with research study visits 3. Poor venous access not allowing screening laboratory collection 4. Have any condition that the investigator considers a contraindication to study participation 5. Pregnant or breastfeeding woman
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Hepatitis C Virus (HCV) Cure (Sustained Virologic Response) | 24 weeks | Undetectable HCV viral load 12 weeks after the end of treatment |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Uptake of HIV Pre-exposure Prophylaxis (PrEP) | 24 weeks | Number of participants who initiated PrEP between Day 0 and Week 24 |
| Retention on HIV PrEP | 48 weeks | Number of participants who initiated PrEP between Day 0 and Week 24 and continued on PrEP through week 48 |
| Uptake of Buprenorphine | 24 weeks | Number of participants who initiated on-site co-located buprenorphine between Day 0 and Week 24 |
| Retention in Buprenorphine Program | 48 weeks | Number of participants who initiated buprenorphine between Day 0 and Week 24 and were retained in buprenorphine treatment at week 48 |
Countries
United States
Contacts
University of Maryland
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Adults Infected With HCV Phase 1 (first 100 enrolled participants) HCV-infected adults with on-going injection drug use use with opioids with 3 months of screening
Phase 2 (enrolled participants 101-200) HCV-infected adults with on-going opioid misuse of non-prescription opioids within twelve months of screening
Evaluate model of care for HCV-infected adults with on-going opioid misuse: Participants will be treated with direct-acting antivirals per standard of care and will be concomittantly be offered PreP for HIV prevention and buprenorphine for treatment of opioid-use disorder when clinically indicated | 198 |
| Total | 198 |
Baseline characteristics
| Characteristic | Adults Infected With HCV |
|---|---|
| Age, Categorical <=18 years | 0 Participants |
| Age, Categorical >=65 years | 16 Participants |
| Age, Categorical Between 18 and 65 years | 182 Participants |
| Age, Continuous | 57 years |
| Chronic HCV Infection | 198 Participants |
| Ethnicity (NIH/OMB) Hispanic or Latino | 1 Participants |
| Ethnicity (NIH/OMB) Not Hispanic or Latino | 197 Participants |
| Ethnicity (NIH/OMB) Unknown or Not Reported | 0 Participants |
| Race (NIH/OMB) American Indian or Alaska Native | 1 Participants |
| Race (NIH/OMB) Asian | 0 Participants |
| Race (NIH/OMB) Black or African American | 165 Participants |
| Race (NIH/OMB) More than one race | 4 Participants |
| Race (NIH/OMB) Native Hawaiian or Other Pacific Islander | 0 Participants |
| Race (NIH/OMB) Unknown or Not Reported | 2 Participants |
| Race (NIH/OMB) White | 26 Participants |
| Region of Enrollment United States | 198 participants |
| Sex: Female, Male Female | 63 Participants |
| Sex: Female, Male Male | 135 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | 14 / 198 |
| other Total, other adverse events | 0 / 198 |
| serious Total, serious adverse events | 0 / 198 |
Outcome results
Hepatitis C Virus (HCV) Cure (Sustained Virologic Response)
Undetectable HCV viral load 12 weeks after the end of treatment
Time frame: 24 weeks
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Adults Infected With Hepatitis C Virus (HCV) | Hepatitis C Virus (HCV) Cure (Sustained Virologic Response) | 158 Participants |
Retention in Buprenorphine Program
Number of participants who initiated buprenorphine between Day 0 and Week 24 and were retained in buprenorphine treatment at week 48
Time frame: 48 weeks
Population: Patients who initiated buprenorphine between Day 0 and Week 24
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Adults Infected With Hepatitis C Virus (HCV) | Retention in Buprenorphine Program | 41 Participants |
Retention on HIV PrEP
Number of participants who initiated PrEP between Day 0 and Week 24 and continued on PrEP through week 48
Time frame: 48 weeks
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Adults Infected With Hepatitis C Virus (HCV) | Retention on HIV PrEP | 8 Participants |
Uptake of Buprenorphine
Number of participants who initiated on-site co-located buprenorphine between Day 0 and Week 24
Time frame: 24 weeks
Population: Patients not on MOUD at time of ANCHOR screening
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Adults Infected With Hepatitis C Virus (HCV) | Uptake of Buprenorphine | 61 Participants |
Uptake of HIV Pre-exposure Prophylaxis (PrEP)
Number of participants who initiated PrEP between Day 0 and Week 24
Time frame: 24 weeks
| Arm | Measure | Value (COUNT_OF_PARTICIPANTS) |
|---|---|---|
| Adults Infected With Hepatitis C Virus (HCV) | Uptake of HIV Pre-exposure Prophylaxis (PrEP) | 29 Participants |