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CompletedNCT00102986Updated Dec 3, 2015

Differences in Blood Levels of Lopinavir/Ritonavir in HIV Infected Men and Women

An interventional study of Lopinavir/ritonavir in HIV Infections, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 29 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-12-03.

Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
116
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
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Study summary

Men's and women's bodies may process anti-HIV drugs differently. The purpose of this study is to determine the differences in blood levels of soft gel capsules and tablets of lopinavir/ritonavir (LPV/r) in HIV infected men and women.

Read the detailed description

It is estimated that 50% of people living with HIV/AIDS worldwide are women. HIV infected women face different psychosocial issues than men, and their bodies may react differently to HIV treatment. However, most of the data on the safety and efficacy of antiretrovirals (ARVs) used in the treatment of HIV infection are from studies conducted primarily in men. LPV/r in tablet form was approved by the FDA in October 2005. This study will determine the differences in pharmacokinetics (PK) in men and women taking a soft gel capsule and a tablet formulation of LPV/r.

No ARVs will be provided by this study. In Step 1, participants will receive soft gel capsules of LPV/r. All Step 1 participants will be asked to join Step 2 of the study upon completion of Step 1. In Step 2, participants will receive tablets of LPV/r. During the study, participants in both Step 1 and 2 will take a treatment regimen of LPV/r twice daily and one or more of the following: a nucleoside reverse transcriptase inhibitor (NRTI), tenofovir disoproxil fumarate, or enfuvirtide. Medical and medication history, blood collection, and clinical assessments will occur at study screening for both Steps 1 and 2. Participants in both steps will be asked to complete a medication diary from study entry to the day of the PK visit. The PK visit will occur within 30 days of study screening; blood collection for PK analysis will also occur at this visit.

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Conditions studied

  • HIV Infections

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Keywords

  • Kaletra
  • Treatment Experienced
03

In context

HIV Infections

4,257 studies on the registry are indexed under HIV Infections; 240 are open to participants now.

This study's enrollment of 116 is above the median of 83 across 3,250 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,401 studies on the registry; 179 are open to participants now.

Of its 396 completed or terminated interventional studies of FDA-regulated products, 294 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Note: Step 1 enrollment ended as of 06/28/06.

Inclusion criteria

Inclusion Criteria

  • HIV infected
  • Have taken twice-daily LPV/r (soft gel formulation for Step 1 participants and tablet formulation for Step 2 participants) for at least 14 days immediately prior to step screening and are willing to continue taking LPV/r until the PK visit of that step
  • Have taken LPV/r in combination with at least one of the following for at least 14 days immediately prior to study step screening: zidovudine, lamivudine, emtricitabine, stavudine, abacavir sulfate, didanosine, zalcitabine, tenofovir disoproxil fumarate, enfuvirtide, AND are willing to continue taking them until the PK visit of that step
  • Body weight of more than 50 kg (110 lbs) for Step 1 participants only

Exclusion criteria

Exclusion Criteria:

  • Non-nucleoside reverse transcriptase inhibitor or dual protease inhibitor regimen within 30 days prior to study entry
  • Require certain medications
  • Current drug or alcohol abuse that, in the investigator's opinion, may interfere with the study
  • Serious illness requiring systemic treatment or hospitalization within 30 days of study screening
  • Acute AIDS-related opportunistic infection within 90 days of study entry
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
116 participants (actual)

Interventions

  • DrugLopinavir/ritonavir
06

What researchers measure

Primary outcomes

  1. Lopinavir (LPV) area under the concentration-time curve (AUC) for 0 to 12 hours

Secondary outcomes

  1. LPV maximum concentration (Cmax), concentration at 12 hours (C12h), and apparent oral clearance (CL/F)

  2. LPV AUC for 0 to 12 hours, Cmax, C12h, CL/F, and participant's race and ethnicity

  3. LPV AUC for 0 to 12 hours, Cmax, C12h, CL/F, participant's age, weight, and body mass index (BMI), and coadministration of TDF

  4. LPV AUC for 0 to 12 hours, Cmax, C12h, CL/F, and graded signs and symptoms

  5. LPV AUC for 0 to 12 hours, Cmax, C12h, CL/F, and graded gastrointestinal signs and symptoms (defined as nausea, vomiting, diarrhea, abdominal pain, and bloating)

  6. ritonavir (RTV) AUC for 0 to 12 hours, Cmax, C12h, and CL/F

  7. LPV/r AUC for 0 to 12 hours, Cmax, C12h, CL/F for both the soft gel capsule and tablet formulations

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Study locations

29 sites
  • University of Southern California CRS
    Los Angeles, California 90033-1079, United States
  • UCLA CARE Center CRS
    Los Angeles, California 90035, United States
  • Stanford AIDS Clinical Trials Unit CRS
    Palo Alto, California 94304-5350, United States
  • UCSD Antiviral Research Center CRS
    San Diego, California 92103, United States
  • Harbor-UCLA CRS
    Torrance, California 90502, United States
  • University of Colorado Hospital CRS
    Aurora, Colorado 80045, United States
  • Georgetown University CRS (GU CRS)
    Washington, District of Columbia 20007, United States
  • The University of Miami AIDS Clinical Research Unit (ACRU) CRS
    Miami, Florida 33136, United States
  • Univ. of Hawaii at Manoa, Leahi Hosp.
    Honolulu, Hawaii 96816, United States
  • Cook County Hosp. CORE Ctr.
    Chicago, Illinois 60612, United States
  • Rush University CRS
    Chicago, Illinois 60612, United States
  • Indiana Univ. School of Medicine, Infectious Disease Research Clinic
    Indianapolis, Indiana 46202-5250, United States
  • Johns Hopkins University CRS
    Baltimore, Maryland 21205, United States
  • Bmc Actg Crs
    Boston, Massachusetts 02118, United States
  • Washington University Therapeutics (WT) CRS
    St. Louis, Missouri 63110-1010, United States
  • Beth Israel Med. Ctr., ACTU
    New York, New York 10003, United States
  • NY Univ. HIV/AIDS CRS
    New York, New York 10016, United States
  • Columbia P&S CRS
    New York, New York 10032-3732, United States
  • Univ. of Rochester ACTG CRS
    Rochester, New York 14642, United States
  • Chapel Hill CRS
    Chapel Hill, North Carolina 27599, United States
  • Cincinnati CRS
    Cincinnati, Ohio 45219, United States
  • MetroHealth CRS
    Cleveland, Ohio 44109, United States
  • Ohio State University CRS
    Columbus, Ohio 43210, United States
  • Penn Therapeutics, CRS
    Philadelphia, Pennsylvania 19104, United States
  • University of Pittsburgh CRS
    Pittsburgh, Pennsylvania 15213, United States
  • Vanderbilt Therapeutics (VT) CRS
    Nashville, Tennessee 37204, United States
  • Univ. of Texas Medical Branch, ACTU
    Galveston, Texas 77555-0435, United States
  • University of Washington AIDS CRS
    Seattle, Washington 98104-9929, United States
  • Puerto Rico AIDS Clinical Trials Unit CRS
    San Juan, 00935, Puerto Rico
08

References and documents

Publications

  • Umeh OC, Currier JS. Sex Differences in HIV: Natural History, Pharmacokinetics, and Drug Toxicity. Curr Infect Dis Rep. 2005 Jan;7(1):73-78. doi: 10.1007/s11908-005-0026-9. PubMed 15610674 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 3, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00102986
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Collaborators
Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections
Responsible party
Sponsor
First posted
Feb 7, 2005
Start date
Oct 2005
Completion
Jul 2007
Last update
Dec 3, 2015

Study contacts

Judith S. Currier, MD, MSc
study chair · Center for AIDS Research and Education, University of California, Los Angeles
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2015. You cannot join it, but the record below documents what was studied.

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