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Raltegravir Use as Nonoccupational Postexposure Prophylaxis (NPEP) in Men Who Have Sex With Men

Information source: St Vincent's Hospital, Sydney
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: HIV Prevention; HIV Infections

Intervention: Raltegravir (Drug)

Phase: Phase 4

Status: Completed

Sponsored by: Andrew Carr

Official(s) and/or principal investigator(s):
Robert Fielden, RN, Principal Investigator, Affiliation: St Vincent's Hospital, Sydney
Anna McNulty, MBBS, FAChSHM, Principal Investigator, Affiliation: Sydney Sexual Health, Sydney Hospital
Phillip Read, MBBS, FAChSHM, Principal Investigator, Affiliation: Sydney Sexual Health, Sydney Hospital
Andrew Carr, MBBS, MD, Principal Investigator, Affiliation: St Vincents Hospital

Summary

The use of anti-HIV drugs following a potential sexual or injecting drug use exposure to HIV in order to try and prevent an exposure from becoming an infection is common. This is called nonoccupational postexposure prophylaxis (NPEP). The likelihood of NPEP succeeding is related to intrinsic qualities of the drugs used which includes at which point in the life cycle of the HIV virus the drugs work, how strong the drugs are against HIV, and how well tolerated the drugs are i. e. what side effects they produce. Many people skip doses during their treatment or abandon their treatment because of side effects. The anti-HIV drug raltegravir works early in the life cycle of the virus i. e. before it integrates with human DNA, is potent against HIV and causes few side effects. These qualities make it an obvious choice for use as a NPEP treatment. In this study 100 HIV negative men will receive raltegravir along with another HIV drug called truvada (commonly used in NPEP) for 28 days after a possible sexual exposure to HIV. They will be monitored closely for adverse events, side effects and for their ability to take the medicine each day for the whole 28 days. The hypothesis in this study states that raltegravir use in NPEP will be safe, well tolerated and result in a high treatment completion rate.

Clinical Details

Official title: Safety, Tolerability, and Adherence to a Raltegravir-based Antiretroviral Regimen for HIV Non-occupational Postexposure Prophylaxis

Study design: Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Primary outcome:

To describe the safety of 28 days of nonoccupational post-exposure prophylaxis containing raltegravir

To describe the tolerability of 28 days of NPEP containing raltegravir

To describe on-drug adherence and regimen completion rates of 28 days of NPEP containing raltegravir

Secondary outcome:

To describe the context of the risk

To investigate whether or not receipt of NPEP decreases, increases or has no impact on future HIV risk taking behaviour

To describe the effects of raltegravir and truvada on key inflammatory biomarkers

Detailed description: This is a single site, 72-week, prospective, open-label, non-randomized trial. One hundred and 50 (150) eligible participants will be assigned to receive RAL 400 mg BID along with tenofovir disoproxil fumarate/emtricitabine (TVD) 1 tablet once daily (3-drug NPEP) for 28-days or TVD 1 tablet once daily (2-drug NPEP) for 28-days according to established Australian guidelines for the use of 3 or 2-drug NPEP following a potential or actual sexual exposure to HIV in men who have sex with men (MSM).1 Based on hospital NPEP data over the past 2 years, it is anticipated that 100 MSM will receive 3-drug (RAL-TVD) NPEP and 50 will receive 2-drug (TVD) NPEP. Follow-up post NPEP is for 23 weeks i. e. to week 24 post exposure. Primary study objectives: To describe the safety of 28 days of nonoccupational post-exposure prophylaxis(NPEP) containing raltegravir (RAL) To describe the tolerability of 28 days of NPEP containing RAL To describe on-drug adherence and regimen completion rates of 28 days of NPEP containing RAL Secondary study objectives: To investigate whether or not receipt of NPEP decreases, increases or has no impact on HIV risk taking behaviour To describe the effects of RAL and tenofovir disoproxil fumarate/emtricitabine (TVD) on key inflammatory biomarkers in a subset of the main study population

Eligibility

Minimum age: 18 Years. Maximum age: 70 Years. Gender(s): Male.

Criteria:

Inclusion Criteria:

- Eligible MSM who, according to Australian NPEP guidelines, or in the opinion of the

investigators, are assessed as eligible for NPEP following a potential or actual sexual exposure to HIV who present to St. Vincent's Hospital, Sydney. Exclusion Criteria:

- Non sexual exposures

- Exposures occurring during sex between a man and a woman

- HIV infection diagnosed on baseline serological testing including indeterminate

serology consistent with possible primary HIV infection

- Use of any medication contraindicated with RAL or TVD

- Serum hepatic transaminases (ALT/AST) greater than 5 times the upper limit of normal

- Serum creatinine greater than 2 times the upper limit of normal#

- Therapy with adefovir, tenofovir, emtricitabine, lamivudine, or entecavir for

hepatitis B

- Baseline serological evidence of chronic/active hepatitis B

- Previous NPEP containing RAL in the study period

- A patient 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 patient's participation for the full duration of the study

Locations and Contacts

St. Vincent's Hospital, 390 Victoria Rd, Darlinghurst, Sydney, New South Wales 2010, Australia

Sydney Sexual Health, Sydney Hospital, Sydney, New South Wales 2000, Australia

Additional Information

Starting date: July 2010
Last updated: April 15, 2014

Page last updated: August 23, 2015

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