Human Immunodeficiency Virus
Conditions
Brief summary
This study aims to describe the proportion of participants with non-occupational post-exposure prophylaxis (NPEP) failure, defined as NPEP non-completion (including loss to follow-up) at week 4 or primary HIV infection at week 4 or 12, excluding those participants who should and do cease study drug because: 1. The participant is found to be HIV-infected (study drugs will be ceased until the genotype of the infecting strain is determined) 2. The source is found to be HIV-uninfected The primary study objectives are: 1. To describe on-drug adherence and regimen completion rates of 28 days of NPEP using dolutegravir (DTG) with co-formulated emtricitabine-tenofovir (FTC-TDF) 2. To describe the safety of 28 days of non-occupational post-exposure prophylaxis (NPEP) using dolutegravir with co-formulated emtricitabine-tenofovir The study is a multi-site, prospective, open-label, non-randomized trial. One-hundred (100) eligible participants will receive dolutegravir (one tablet) with co-formulated emtricitabine-tenofovir, two tablets, once daily for 28 days based on one of the following exposures: 1. receptive anal intercourse with a source known to be HIV-infected; or 2. receptive anal intercourse with a source of unknown HIV status; or 3. insertive anal intercourse with a source known to be HIV-infected There will be 7 study visits over a 12-week period. Follow-up post NPEP is for 8 weeks i.e. to week-12 post-exposure. Any participant who is intolerant of dolutegravir will be managed at the investigator's discretion.
Interventions
DRUGdolutegravir 50 mg (one tablet daily)
DRUGemtricitabine-tenofovir 300/200 mg (one tablet daily)
Sponsors
ViiV Healthcare Australia Pty. Ltd
Andrew Carr
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
1. Man who has sex with men 2. Age at least 18 years 3. Potential HIV exposure following: * receptive anal intercourse with a source known to be HIV-infected; or * receptive anal intercourse with a source of unknown HIV status; or * insertive anal intercourse with a source known to be HIV-infected 4. Able to provide written, informed consent 5. Able to commit to the study visits
Exclusion criteria
1. Non-sexual exposure 2. Exposure occurring during sex between a man and a woman 3. HIV infection diagnosed on baseline testing (antibody, Western blot, proviral DNA) including indeterminate serology consistent with possible primary HIV infection 4. Use of any medication contra-indicated with DTG, FTC or TDF 5. Use of any medication that effects the concentration of dolutegravir and / or concomitant drug including: oxcarbazepine, phenytoin, phenobarbital, carbamazepine, rifampicin, metformin or St. John's wort (St John's wort can be stopped for the 28-day period of NPEP). 6. History or presence of allergy to DTG, FTC, TDF or their components 7. Alanine aminotransferase (ALT) ≥5 times the upper limit of the reference range or ALT ≥3 times and bilirubin ≥1.5 times the upper limit of the reference range 8. Unstable liver disease (as defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminaemia, oesophageal or gastric varices, or persistent jaundice) or known biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones) 9. Severe hepatic impairment (Class C) as determined by Child-Pugh classification 10. Serum estimated Glomerular Filtration Rate (eGFR) \<60 mL/min/BSAc 11. Current therapy for hepatitis B infection 12. Serological evidence of chronic/active hepatitis B 13. Previous OPEP/NPEP containing DTG 14. A participant with a history or current evidence of any condition, therapy, or laboratory abnormality, or other circumstance that might confound the results of the study, or interfere with the participant's participation for the full duration of the study 15. Unable to complete study procedures
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Number of participants with Adverse Events as a Measure of Safety and Tolerability | twelve (12) weeks |
Countries
Australia
Outcome results
None listed