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Comparing PI-Based to a nNRTI-based ART for Clearance of Plasmodium Falciparum Parasitemia in HIV-Infected

Primary Purpose

HIV-1 Infection, Pf Subclinical Parasitemia

Status
Completed
Phase
Phase 1
Locations
International
Study Type
Interventional
Intervention
Lopinavir/ritonavir
Emtricitabine/tenofovir disoproxil fumarate
Efavirenz
Nevirapine
Trimethoprim/sulfamethoxazole
Sponsored by
AIDS Clinical Trials Group
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for HIV-1 Infection

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • HIV-1 infection
  • CD4+ count > 200 and < 500 cells/mm^3 obtained within 30 days prior to study entry at a DAIDS-approved laboratory.
  • Pf SCP confirmed in a laboratory approved to conduct parasitemia microscopy. Note: Pf SCP defined as meeting all three of the following criteria within 72 hours prior to study entry:

    1. Microscopy confirmed parasitemia (see section 6.3.6 and the A5297 Manual of Procedures [MOPS])
    2. An oral temperature < 37.5°C.
    3. The absence of Grade 2 or greater signs or symptoms thought to be related to clinical malaria including:

      1. headache
      2. malaise or fatigue
      3. abdominal discomfort
      4. muscle or joint pain
      5. fever
      6. chills
      7. perspiration
      8. anorexia
      9. vomiting
      10. other signs or symptoms thought to be related to clinical malaria
  • Certain laboratory values obtained within 14 days prior to study entry, as detailed in section 4.1.4 of the protocol.
  • Hepatitis B surface antigen (HBsAg) negative within 30 days prior to entry.
  • Female study volunteers of reproductive potential have a negative serum or urine pregnancy test performed within 72 hours prior to entry.
  • All study volunteers agree not to participate in a conception process (eg, active attempt to become pregnant or to impregnate, sperm donation, in vitro fertilization) for study duration. If participating in sexual activity that could lead to pregnancy, must agree to use two reliable forms of contraceptive simultaneously while receiving protocol-specified medications. One form of contraceptive must be a barrier method if a participant receives EFV. Participants must agree to continue the use of two contraceptives for 6 months after stopping EFV and 6 weeks after stopping all other protocol-specified medications.
  • Study volunteers who are not of reproductive potential are eligible without requiring the use of a contraceptive.
  • Ability and willingness of participant or legal guardian/representative to provide informed consent.
  • Willing and able to return to the clinic twice to three times a day for study visits.

Exclusion Criteria:

Step 1: Exclusion Criteria

  • Previous history or current use of ART.
  • Single dose NVP or dual therapies used for Prevention of mother-to-child transmission (PMTCT) within 2 years prior to entry.
  • Use of any medication with antimalarial activity, including TMP/SMX (see list of prohibited medications in the A5297 Manual of Procedures (MOPS)), within 14 days prior to study entry.
  • Confirmed or clinically suspected OIs (including but not limited to tuberculosis, clinical malaria, PCP), or other pulmonary or gastrointestinal infections for which potential participants did not complete treatment more than 30 days prior to enrollment or have signs and symptoms during screening.
  • Breastfeeding.
  • Known allergy/sensitivity or any hypersensitivity to components of study drugs or their formulation.
  • Active drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements.
  • Serious illness requiring systemic treatment and/or hospitalization within 30 days prior to entry.
  • Results suggestive of active pulmonary disease from a chest x-ray performed within 30 days prior to study entry.

Sites / Locations

  • AMPATH at Moi Univ. Teaching Hosp. Eldoret CRS (12601)
  • Walter Reed Project - Kenya Med. Research Institute Kericho CRS (12501)
  • Kisumu Crs (31460)
  • College of Med. JHU CRS (30301)
  • Joint Clinical Research Centre (JCRC) (12401)

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Experimental

Arm Label

LPV/r-based ART

nNRTI-based ART

Arm Description

Participants were prescribed to LPV/r-based antiretroviral therapy (ART) for 15 days, which includes lopinavir/ritonavir plus emtricitabine/tenofovir disoproxil fumarate; followed by an nNRTI-based ART, which includes efavirenz, nevirapine, plus emtricitabine/tenofovir disoproxil fumarate, and Trimethoprim/sulfamethoxazole prophylaxis to take from day 16 through day 30.

Participants were prescribed to nNRTI-based ART for 15 days, which includes efavirenz, nevirapine, plus emtricitabine/tenofovir disoproxil fumarate, followed by an nNRTI-based ART and Trimethoprim/sulfamethoxazole prophylaxis to take from day 16 through day 30.

Outcomes

Primary Outcome Measures

Proportion of Participants With Plasmodium Falciparum (Pf) Subclinical Parasitemia (SCP) Clearance
Pf SCP clearance defined by polymerase chain reaction (PCR) < 10 parasites/µL on three consecutive occasions within a 24-hour period. If a participant had missing data on day 15, they were considered as not having clearance.

Secondary Outcome Measures

Time to First Pf SCP Clearance
Time to clearance is defined by time to first measurement with PCR < 10 parasites/µL, and is evaluated as the point estimate and 95% CI for the day when 50% of participants cleared parasite.
Log10(Pf Parasite Density)
Pf parasite density was determined by PCR. If parasite density equals 0, the value is set to 0.01 before log10 transformation. The value 0.01 was chosen based on the smallest observed parasite density value of 0.017.
Change in log10(Pf Parasite Density) From Entry to Day 30
Change is evaluated as log10(Pf parasite density) at day 30 minus log10(Pf parasite density) at entry. Change is evaluated in four groups: Randomized to nNRTI-based ART with continued Pf SCP at day 15 Randomized to nNRTI-based ART with clearance of Pf SCP at day 15 Randomized to LPV/r-based ART with continued Pf SCP at day 15 Randomized to LPV/r-based ART with clearance of Pf SCP at day 15
Number of Participants With Uncomplicated Clinical Malaria
Uncomplicated clinical malaria is defined as the presence of non-severe fever/symptoms and parasitemia without organ complication.
Number of Participants With Detectable Pf Gametocyte Density
Number of participants with detectable Pf gametocyte density as determined by PCR. Due to the large number of undetectable results, this outcome was measured as dichotomous.
Change in log10(Pf Gametocyte Density) From Entry to Day 30
Change in log10(Pf gametocyte density) as evaluated using a Hodges-Lehmann estimate from entry to day 30 is evaluated in two groups: Randomized to nNRTI-based ART with continued Pf SCP at day 15 Randomized to LPV/r-based ART with continued Pf SCP at day 15 Analysis was not conducted in either group with clearance at day 15 due to the small sample size and high number of undetectable samples in both clearance groups at entry and day 30.

Full Information

First Posted
June 29, 2012
Last Updated
July 23, 2019
Sponsor
AIDS Clinical Trials Group
Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
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1. Study Identification

Unique Protocol Identification Number
NCT01632891
Brief Title
Comparing PI-Based to a nNRTI-based ART for Clearance of Plasmodium Falciparum Parasitemia in HIV-Infected
Official Title
An Open-Label, Proof of Concept, Randomized Trial Comparing a LPV/r-Based to an nNRTI-Based Antiretroviral Therapy Regimen for Clearance of Plasmodium Falciparum Subclinical Parasitemia in HIV-infected Adults With CD4+ Counts >200 and <500 Cells/mm^3
Study Type
Interventional

2. Study Status

Record Verification Date
July 2019
Overall Recruitment Status
Completed
Study Start Date
January 10, 2014 (Actual)
Primary Completion Date
June 19, 2016 (Actual)
Study Completion Date
June 19, 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
AIDS Clinical Trials Group
Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The purpose of this study was to see if antiretroviral therapy (ART) is safe and works at getting rid of malaria in blood and to see whether one type of ART is better than another. This study may offer information for further research in looking at whether ART plays a role in the prevention and treatment of malaria.
Detailed Description
A5297 was a Phase I/II, open-label, proof of concept, two-step, two-arm, randomized controlled clinical trial (RCT) to test the superiority of lopinavir/ritonavir (LPV/r)-based antiretroviral therapy (ART) to non-nucleoside reverse transcriptase (nNRTI)-based ART for clearance of Plasmodium falciparum (Pf) subclinical parasitemia (SCP). The study consisted of two steps. At study Step 1 entry, participants were randomized 1:1 to either LPV/r-based ART or nNRTI-based ART for 15 days. In study Step 2, all participants received nNRTI-based ART and TMP/SMX prophylaxis for 15 days. The total study duration was 30 days. Study visits occurred every 3 days in Step 1, and every 5 days in Step 2. At each study visit, 2 samples were taken for measurement of parasite density, except day 15 and day 30 at which 3 samples were taken. Adverse events which occurred after randomization were also recorded. Signs/symptoms and diagnoses were evaluated at each visit, while safety labs (including Hemoglobin, hematocrit, white blood cell count (WBC), differential WBC, platelet count, and absolute neutrophil count (ANC), glucose, electrolytes (sodium, potassium, chloride, bicarbonate), total bilirubin, AST (SGOT), ALT (SGPT), albumin, alkaline phosphatase, and creatinine) were taken at day 15 and day 30, or if indicated at other study visits.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
HIV-1 Infection, Pf Subclinical Parasitemia

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1, Phase 2
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
52 (Actual)

8. Arms, Groups, and Interventions

Arm Title
LPV/r-based ART
Arm Type
Experimental
Arm Description
Participants were prescribed to LPV/r-based antiretroviral therapy (ART) for 15 days, which includes lopinavir/ritonavir plus emtricitabine/tenofovir disoproxil fumarate; followed by an nNRTI-based ART, which includes efavirenz, nevirapine, plus emtricitabine/tenofovir disoproxil fumarate, and Trimethoprim/sulfamethoxazole prophylaxis to take from day 16 through day 30.
Arm Title
nNRTI-based ART
Arm Type
Experimental
Arm Description
Participants were prescribed to nNRTI-based ART for 15 days, which includes efavirenz, nevirapine, plus emtricitabine/tenofovir disoproxil fumarate, followed by an nNRTI-based ART and Trimethoprim/sulfamethoxazole prophylaxis to take from day 16 through day 30.
Intervention Type
Drug
Intervention Name(s)
Lopinavir/ritonavir
Other Intervention Name(s)
LPV/r
Intervention Description
Participants received two 200 mg/50 mg tablets of lopinavir/ritonavir orally twice daily.
Intervention Type
Drug
Intervention Name(s)
Emtricitabine/tenofovir disoproxil fumarate
Other Intervention Name(s)
FTC/TDF
Intervention Description
Participants received one 200 mg/300 mg tablet of Emtricitabine/tenofovir disoproxil fumarate orally once daily.
Intervention Type
Drug
Intervention Name(s)
Efavirenz
Other Intervention Name(s)
EFV
Intervention Description
Participants received one 600 mg tablet of efavirenz orally once daily.
Intervention Type
Drug
Intervention Name(s)
Nevirapine
Other Intervention Name(s)
NVP
Intervention Description
If unable to take efavirenz, participants received on 200 mg tablet of nevirapine orally once daily.
Intervention Type
Drug
Intervention Name(s)
Trimethoprim/sulfamethoxazole
Other Intervention Name(s)
TMP/SMX
Intervention Description
Participants received one 160 mg/800 mg tablet of trimethoprim/sulfamethoxazole orally once daily.
Primary Outcome Measure Information:
Title
Proportion of Participants With Plasmodium Falciparum (Pf) Subclinical Parasitemia (SCP) Clearance
Description
Pf SCP clearance defined by polymerase chain reaction (PCR) < 10 parasites/µL on three consecutive occasions within a 24-hour period. If a participant had missing data on day 15, they were considered as not having clearance.
Time Frame
Day 15 (3 samples collected, separated by at least 5 hours and all three collected within 24-hours)
Secondary Outcome Measure Information:
Title
Time to First Pf SCP Clearance
Description
Time to clearance is defined by time to first measurement with PCR < 10 parasites/µL, and is evaluated as the point estimate and 95% CI for the day when 50% of participants cleared parasite.
Time Frame
From study entry up to day 30
Title
Log10(Pf Parasite Density)
Description
Pf parasite density was determined by PCR. If parasite density equals 0, the value is set to 0.01 before log10 transformation. The value 0.01 was chosen based on the smallest observed parasite density value of 0.017.
Time Frame
Entry, days 3, 6, 9, 12, 15, 20, 25, 30
Title
Change in log10(Pf Parasite Density) From Entry to Day 30
Description
Change is evaluated as log10(Pf parasite density) at day 30 minus log10(Pf parasite density) at entry. Change is evaluated in four groups: Randomized to nNRTI-based ART with continued Pf SCP at day 15 Randomized to nNRTI-based ART with clearance of Pf SCP at day 15 Randomized to LPV/r-based ART with continued Pf SCP at day 15 Randomized to LPV/r-based ART with clearance of Pf SCP at day 15
Time Frame
Entry, Day 30
Title
Number of Participants With Uncomplicated Clinical Malaria
Description
Uncomplicated clinical malaria is defined as the presence of non-severe fever/symptoms and parasitemia without organ complication.
Time Frame
From study entry to day 30
Title
Number of Participants With Detectable Pf Gametocyte Density
Description
Number of participants with detectable Pf gametocyte density as determined by PCR. Due to the large number of undetectable results, this outcome was measured as dichotomous.
Time Frame
Entry, days 3, 6, 9, 12, 15, 20, 25, 30
Title
Change in log10(Pf Gametocyte Density) From Entry to Day 30
Description
Change in log10(Pf gametocyte density) as evaluated using a Hodges-Lehmann estimate from entry to day 30 is evaluated in two groups: Randomized to nNRTI-based ART with continued Pf SCP at day 15 Randomized to LPV/r-based ART with continued Pf SCP at day 15 Analysis was not conducted in either group with clearance at day 15 due to the small sample size and high number of undetectable samples in both clearance groups at entry and day 30.
Time Frame
Entry, Day 30

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: HIV-1 infection CD4+ count > 200 and < 500 cells/mm^3 obtained within 30 days prior to study entry at a DAIDS-approved laboratory. Pf SCP confirmed in a laboratory approved to conduct parasitemia microscopy. Note: Pf SCP defined as meeting all three of the following criteria within 72 hours prior to study entry: Microscopy confirmed parasitemia (see section 6.3.6 and the A5297 Manual of Procedures [MOPS]) An oral temperature < 37.5°C. The absence of Grade 2 or greater signs or symptoms thought to be related to clinical malaria including: headache malaise or fatigue abdominal discomfort muscle or joint pain fever chills perspiration anorexia vomiting other signs or symptoms thought to be related to clinical malaria Certain laboratory values obtained within 14 days prior to study entry, as detailed in section 4.1.4 of the protocol. Hepatitis B surface antigen (HBsAg) negative within 30 days prior to entry. Female study volunteers of reproductive potential have a negative serum or urine pregnancy test performed within 72 hours prior to entry. All study volunteers agree not to participate in a conception process (eg, active attempt to become pregnant or to impregnate, sperm donation, in vitro fertilization) for study duration. If participating in sexual activity that could lead to pregnancy, must agree to use two reliable forms of contraceptive simultaneously while receiving protocol-specified medications. One form of contraceptive must be a barrier method if a participant receives EFV. Participants must agree to continue the use of two contraceptives for 6 months after stopping EFV and 6 weeks after stopping all other protocol-specified medications. Study volunteers who are not of reproductive potential are eligible without requiring the use of a contraceptive. Ability and willingness of participant or legal guardian/representative to provide informed consent. Willing and able to return to the clinic twice to three times a day for study visits. Exclusion Criteria: Step 1: Exclusion Criteria Previous history or current use of ART. Single dose NVP or dual therapies used for Prevention of mother-to-child transmission (PMTCT) within 2 years prior to entry. Use of any medication with antimalarial activity, including TMP/SMX (see list of prohibited medications in the A5297 Manual of Procedures (MOPS)), within 14 days prior to study entry. Confirmed or clinically suspected OIs (including but not limited to tuberculosis, clinical malaria, PCP), or other pulmonary or gastrointestinal infections for which potential participants did not complete treatment more than 30 days prior to enrollment or have signs and symptoms during screening. Breastfeeding. Known allergy/sensitivity or any hypersensitivity to components of study drugs or their formulation. Active drug or alcohol use or dependence that, in the opinion of the site investigator, would interfere with adherence to study requirements. Serious illness requiring systemic treatment and/or hospitalization within 30 days prior to entry. Results suggestive of active pulmonary disease from a chest x-ray performed within 30 days prior to study entry.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Johnstone Kumwenda, FRCP
Organizational Affiliation
College of Medicine-Johns Hopkins Project
Official's Role
Study Chair
First Name & Middle Initial & Last Name & Degree
Douglas Shaffer, MD, MHS
Organizational Affiliation
Kenya Medical Research Institute/Walter Reed Project
Official's Role
Study Chair
Facility Information:
Facility Name
AMPATH at Moi Univ. Teaching Hosp. Eldoret CRS (12601)
City
Eldoret
ZIP/Postal Code
30100
Country
Kenya
Facility Name
Walter Reed Project - Kenya Med. Research Institute Kericho CRS (12501)
City
Kericho
ZIP/Postal Code
20200
Country
Kenya
Facility Name
Kisumu Crs (31460)
City
Kisumu
ZIP/Postal Code
40100
Country
Kenya
Facility Name
College of Med. JHU CRS (30301)
City
Blantyre
Country
Malawi
Facility Name
Joint Clinical Research Centre (JCRC) (12401)
City
Kampala
Country
Uganda

12. IPD Sharing Statement

Citations:
PubMed Identifier
34693933
Citation
Shaffer D, Kumwenda J, Chen H, Akelo V, Angira F, Kosgei J, Tonui R, Ssali F, McKhann A, Hogg E, Stewart VA, Murphy SC, Coombs R, Schooley R; A5297 Team. Brief Report: No Differences Between Lopinavir/Ritonavir and Nonnucleoside Reverse Transcriptase Inhibitor-Based Antiretroviral Therapy on Clearance of Plasmodium falciparum Subclinical Parasitemia in Adults Living With HIV Starting Treatment (A5297). J Acquir Immune Defic Syndr. 2022 Feb 1;89(2):178-182. doi: 10.1097/QAI.0000000000002839.
Results Reference
derived
Links:
URL
http://rsc.tech-res.com/safetyandpharmacovigilance/
Description
DAIDS Table for Grading the Severity of Adult and Pediatric Adverse Events (DAIDS AE Grading Table), Version 1.0, December 2004
URL
http://rsc.tech-res.com/safetyandpharmacovigilance/.
Description
Manual for Expedited Reporting of Adverse Events to DAIDS (DAIDS EAE Manual), Version 2.0, January 2010

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Comparing PI-Based to a nNRTI-based ART for Clearance of Plasmodium Falciparum Parasitemia in HIV-Infected

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