search
Back to results

Efficacy and Safety Study of Darunavir for the Treatment of HIV/AIDS (MANET)

Primary Purpose

HIV/AIDS

Status
Completed
Phase
Phase 3
Locations
Cameroon
Study Type
Interventional
Intervention
Darunavir
ART with 2 NRTIs plus LPV/r (or ATV/r)
Sponsored by
University of Liverpool
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for HIV/AIDS focused on measuring Efficacy, Safety, Darunavir, HIV-1 RNA level, Cameroon

Eligibility Criteria

21 Years - 70 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Subjects with documented HIV-1 infection.
  2. Male or female aged > 21 years old.
  3. Subjects receiving ART with 2 NRTIs + LPV/r (or ATV/r) for at least 3 months at the time of Screening 1.
  4. Nadir T lymphocyte cluster of differentiation 4 (CD4) >100 cells/mm3
  5. Plasma HIV-1 RNA <50 copies/ml at Screening 1 confirmed ideally 4-6 weeks later at Screening 2 (two results must be documented; a first result obtained up to 12 weeks earlier will be accepted).
  6. Subjects can comply with the protocol requirements. In particular, subjects should be willing to be followed up at least until week 24 (discontinuation prior to week 24) and for the DRV/r arm up to week 48 (discontinuation after week 24) even if they discontinue randomized treatment.
  7. Subjects who have voluntarily signed and dated the consent form.

Exclusion Criteria:

  1. Clinical or laboratory evidence of significantly decreased hepatic function or decompensation, irrespective of liver enzyme levels (liver insufficiency).
  2. Co-infection with hepatitis B (HBsAg positive).
  3. Grade 3 or 4 laboratory abnormality as defined by AIDS, including haemoglobin ≤8mg/dL; platelets ≤50 000/mm3; estimated creatinine clearance ≤60ml/ minute, aspartate aminotransferase; alanine aminotransferase and alkaline phosphatase >3 times the upper limit of normal; and total bilirubin >2.5 times the upper limit of normal; with the following exceptions unless clinical assessment foresees an immediate health risk to the subject:

    • Pre-existing diabetes or asymptomatic glucose grade 3 or 4 elevations.
    • Asymptomatic triglyceride or cholesterol elevations of grade 3 or 4.
  4. Presence of any currently active AIDS defining illness (Category C conditions according to the Centers for Disease Control Classification System for HIV Infection 1993) with the following exceptions:

    • Stable cutaneous Kaposi's Sarcoma (i.e., no internal organ involvement other than oral lesions) that is unlikely to require any form of systemic therapy during the study.
    • Wasting syndrome due to HIV infection. Note: An AIDS defining illness that is not clinically stabilized for at least 30 days will be considered as currently active.
  5. Pregnant or breastfeeding women.
  6. Active substance abuse, including alcohol or recreational drugs.
  7. Any clinically significant disease (e.g., tuberculosis, cardiac dysfunction, pancreatitis, acute viral infections) or life threatening disease in the previous 14 days, or findings during screening of medical history or physical examination that, in the investigator's opinion, would compromise the subject's safety or outcome of the study.
  8. Any medical or psychiatric condition which, in the opinion of the investigator, could compromise the subject's safety or adherence to the trial protocol.
  9. Previously demonstrated clinically allergy or hypersensitivity to any of the excipients of the investigational medication (DRV).

    Note: DRV is a sulfonamide. Subjects who have previously experienced a sulfonamide allergy will be allowed to enter the trial. To date, no potential for cross sensitivity between drugs in the sulfonamide class and DRV has been identified in subjects participating in phase II trials.

  10. Participation in any other clinical trials that involve administration of antiretrovirals or other drugs within the last 4 weeks and during the participation in this trial.

Sites / Locations

  • Yaounde Central Hospital

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Experimental

Arm Label

ART with 2 NRTIs plus LPV/r (or ATV/r)

Darunavir

Arm Description

2 nucleos(t)ide reverse transcriptase inhibitors (NRTIs) plus either lopinavir/ritonavir (LPV/r) or atazanavir/ritonavir (ATV/r).

Dosage form: Darunavir (PREZISTA) is a film coated, oval shaped, light orange 19.1mm tablet, debossed with "400 mg" on one side and TMC on the other side.

Outcomes

Primary Outcome Measures

HIV-1 RNA Viral Load
Percentage of subjects who have plasma HIV-1 RNA levels <400 cps/ml after 24 weeks of follow-up following a switch to DRV/r monotherapy versus continuing triple therapy containing 2 NRTIs + LPV/r (or ATV/r) (FDA Snapshot method). The FDA 'Snapshot' algorithm evaluates HIV RNA response using only the results at the week 24 time-point which also means that rebound at earlier time-points are not classified as treatment failure, unless it lead to discontinuation prior to the week 48.

Secondary Outcome Measures

HIV-1 RNA Viral Load
Percentage of subjects who have plasma HIV-1 RNA levels <50 cps/ml after 12 weeks of follow-up following a switch to DRV/r monotherapy versus continuing triple therapy containing 2 NRTIs + LPV/r (or ATV/r), using the FDA "Time to Loss of Virologic Response" method. The FDA 'Snapshot' algorithm evaluates HIV RNA response using only the results at the week 12 time-point which also means that rebound at earlier time-points are not classified as treatment failure, unless it lead to discontinuation prior to the week 48.

Full Information

First Posted
June 2, 2014
Last Updated
August 30, 2019
Sponsor
University of Liverpool
Collaborators
Janssen Pharmaceutica, Chantal Biya International Reference Centre for Research on Prevention and Management of HIV/AIDS, Yaounde Central Hospital
search

1. Study Identification

Unique Protocol Identification Number
NCT02155101
Brief Title
Efficacy and Safety Study of Darunavir for the Treatment of HIV/AIDS
Acronym
MANET
Official Title
Monotherapy in Africa: Evaluation of New Therapy
Study Type
Interventional

2. Study Status

Record Verification Date
August 2019
Overall Recruitment Status
Completed
Study Start Date
May 2014 (undefined)
Primary Completion Date
June 2016 (Actual)
Study Completion Date
July 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Liverpool
Collaborators
Janssen Pharmaceutica, Chantal Biya International Reference Centre for Research on Prevention and Management of HIV/AIDS, Yaounde Central Hospital

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The aim of this pilot study is to assess the feasibility, efficacy and safety of Darunavir/ritonavir 800/100 mg once daily (DRV/r) monotherapy as a switch-maintenance strategy for patients receiving second-line ART at Yaoundé Central Hospital in Cameroon. HIV-infected adults receiving second-line antiretroviral therapy (ART) for ≥3 months with 2 nucleos(t)ide reverse transcriptase inhibitors (NRTIs) plus either lopinavir/ritonavir (LPV/r) or atazanavir/ritonavir (ATV/r) will undergo plasma HIV-1 RNA ("viral") load testing. Those with a viral load below 50 copies/ml (<50 cps/ml) will undergo a repeat test ideally 4-6 weeks later (allowed up to 12 weeks); if the viral load is confirmed as <50 cps/ml the patient will be invited to join the randomised phase of the study. Patients (n=150) will be randomised 1:2 to either continue the current triple ART regimen (n=50) or switch to DRV/r monotherapy (n=100). The primary end-point will be viral load suppression <400 cps/ml at week 24; secondary end-points will be viral load suppression <50 cps/ml at week 12 and week 24, safety, tolerability, and emergence of protease inhibitor (PI) drug-resistance. Patients will continue observational follow-up depending on the treatment arm they are randomized to. After week 48, patients will return to local standard of care. Pharmacokinetics (PK) and pharmacogenomics sub-study to correlate plasma concentrations of DRV to outcomes, HIV-1 drug resistance testing sub study to detect mutants archived at the time of first-line ART failure and measuring HIV DNA load will be performed, as well as a cost-effectiveness analysis will test the hypothesis that savings can be achieved by switching to DRV/r monotherapy without affecting quality of care. The primary virological objective is to evaluate efficacy in terms of the percentage of subjects who have plasma HIV-1 RNA levels <400 cps/ml after 24 weeks of follow-up following a switch to DRV/r monotherapy versus continuing triple therapy containing 2 NRTIs + LPV/r (or ATV/r) (FDA Snapshot method). Study hypothesis: we propose that maintenance therapy with DRV/r monotherapy is a feasible, effective and safe treatment option for patients receiving second-line ART in Yaoundé.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
HIV/AIDS
Keywords
Efficacy, Safety, Darunavir, HIV-1 RNA level, Cameroon

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
120 (Actual)

8. Arms, Groups, and Interventions

Arm Title
ART with 2 NRTIs plus LPV/r (or ATV/r)
Arm Type
Active Comparator
Arm Description
2 nucleos(t)ide reverse transcriptase inhibitors (NRTIs) plus either lopinavir/ritonavir (LPV/r) or atazanavir/ritonavir (ATV/r).
Arm Title
Darunavir
Arm Type
Experimental
Arm Description
Dosage form: Darunavir (PREZISTA) is a film coated, oval shaped, light orange 19.1mm tablet, debossed with "400 mg" on one side and TMC on the other side.
Intervention Type
Drug
Intervention Name(s)
Darunavir
Other Intervention Name(s)
PREZISTA
Intervention Description
Darunavir (PREZISTA) is a film coated, oval shaped, light orange 19.1mm tablet, debossed with 400 mg on one side and TMC on the other side.
Intervention Type
Drug
Intervention Name(s)
ART with 2 NRTIs plus LPV/r (or ATV/r)
Other Intervention Name(s)
NRTI, lopinavir/ritonavir (LPV/r), atazanavir/ritonavir (ATV/r)
Intervention Description
Patients on second line antiretroviral therapy take 2 NRTIs and either protease inhibitor lopinavir/ritonavir or atazanavir/ritonavir.
Primary Outcome Measure Information:
Title
HIV-1 RNA Viral Load
Description
Percentage of subjects who have plasma HIV-1 RNA levels <400 cps/ml after 24 weeks of follow-up following a switch to DRV/r monotherapy versus continuing triple therapy containing 2 NRTIs + LPV/r (or ATV/r) (FDA Snapshot method). The FDA 'Snapshot' algorithm evaluates HIV RNA response using only the results at the week 24 time-point which also means that rebound at earlier time-points are not classified as treatment failure, unless it lead to discontinuation prior to the week 48.
Time Frame
24 weeks
Secondary Outcome Measure Information:
Title
HIV-1 RNA Viral Load
Description
Percentage of subjects who have plasma HIV-1 RNA levels <50 cps/ml after 12 weeks of follow-up following a switch to DRV/r monotherapy versus continuing triple therapy containing 2 NRTIs + LPV/r (or ATV/r), using the FDA "Time to Loss of Virologic Response" method. The FDA 'Snapshot' algorithm evaluates HIV RNA response using only the results at the week 12 time-point which also means that rebound at earlier time-points are not classified as treatment failure, unless it lead to discontinuation prior to the week 48.
Time Frame
12 weeks
Other Pre-specified Outcome Measures:
Title
HIV-1 RNA Viral Load
Description
Percentage of subjects who have plasma HIV-1 RNA levels <50 cps/ml after 24 weeks of follow-up following a switch to DRV/r monotherapy versus continuing triple therapy containing 2 NRTIs + LPV/r (or ATV/r), using the FDA "Time to Loss of Virologic Response" method. The FDA 'Snapshot' algorithm evaluates HIV RNA response using only the results at the week 24 time-point which also means that rebound at earlier time-points are not classified as treatment failure, unless it lead to discontinuation prior to the week 48.
Time Frame
24 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
21 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Subjects with documented HIV-1 infection. Male or female aged > 21 years old. Subjects receiving ART with 2 NRTIs + LPV/r (or ATV/r) for at least 3 months at the time of Screening 1. Nadir T lymphocyte cluster of differentiation 4 (CD4) >100 cells/mm3 Plasma HIV-1 RNA <50 copies/ml at Screening 1 confirmed ideally 4-6 weeks later at Screening 2 (two results must be documented; a first result obtained up to 12 weeks earlier will be accepted). Subjects can comply with the protocol requirements. In particular, subjects should be willing to be followed up at least until week 24 (discontinuation prior to week 24) and for the DRV/r arm up to week 48 (discontinuation after week 24) even if they discontinue randomized treatment. Subjects who have voluntarily signed and dated the consent form. Exclusion Criteria: Clinical or laboratory evidence of significantly decreased hepatic function or decompensation, irrespective of liver enzyme levels (liver insufficiency). Co-infection with hepatitis B (HBsAg positive). Grade 3 or 4 laboratory abnormality as defined by AIDS, including haemoglobin ≤8mg/dL; platelets ≤50 000/mm3; estimated creatinine clearance ≤60ml/ minute, aspartate aminotransferase; alanine aminotransferase and alkaline phosphatase >3 times the upper limit of normal; and total bilirubin >2.5 times the upper limit of normal; with the following exceptions unless clinical assessment foresees an immediate health risk to the subject: Pre-existing diabetes or asymptomatic glucose grade 3 or 4 elevations. Asymptomatic triglyceride or cholesterol elevations of grade 3 or 4. Presence of any currently active AIDS defining illness (Category C conditions according to the Centers for Disease Control Classification System for HIV Infection 1993) with the following exceptions: Stable cutaneous Kaposi's Sarcoma (i.e., no internal organ involvement other than oral lesions) that is unlikely to require any form of systemic therapy during the study. Wasting syndrome due to HIV infection. Note: An AIDS defining illness that is not clinically stabilized for at least 30 days will be considered as currently active. Pregnant or breastfeeding women. Active substance abuse, including alcohol or recreational drugs. Any clinically significant disease (e.g., tuberculosis, cardiac dysfunction, pancreatitis, acute viral infections) or life threatening disease in the previous 14 days, or findings during screening of medical history or physical examination that, in the investigator's opinion, would compromise the subject's safety or outcome of the study. Any medical or psychiatric condition which, in the opinion of the investigator, could compromise the subject's safety or adherence to the trial protocol. Previously demonstrated clinically allergy or hypersensitivity to any of the excipients of the investigational medication (DRV). Note: DRV is a sulfonamide. Subjects who have previously experienced a sulfonamide allergy will be allowed to enter the trial. To date, no potential for cross sensitivity between drugs in the sulfonamide class and DRV has been identified in subjects participating in phase II trials. Participation in any other clinical trials that involve administration of antiretrovirals or other drugs within the last 4 weeks and during the participation in this trial.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Anna Maria Geretti, MD, PhD
Organizational Affiliation
University of Liverpool
Official's Role
Principal Investigator
Facility Information:
Facility Name
Yaounde Central Hospital
City
Yaounde
State/Province
Centre
ZIP/Postal Code
5777
Country
Cameroon

12. IPD Sharing Statement

Plan to Share IPD
Undecided
Citations:
PubMed Identifier
31299067
Citation
Geretti AM, Abdullahi A, Mafotsing Fopoussi O, Bonnett L, Defo VF, Moudourou S, Fokam J, Kouanfack C, Torimiro J. An apparent paradox: resistance mutations in HIV-1 DNA predict improved virological responses to antiretroviral therapy. J Antimicrob Chemother. 2019 Oct 1;74(10):3011-3015. doi: 10.1093/jac/dkz264.
Results Reference
derived

Learn more about this trial

Efficacy and Safety Study of Darunavir for the Treatment of HIV/AIDS

We'll reach out to this number within 24 hrs