Effects of Tipranavir/Ritonavir on the Pharmacokinetic Characteristics of Triple Drug Nucleoside and Non-nucleoside Reverse Transcriptase Inhibitor Therapy in HIV-1-infected Subjects
An Open Label Multinational Study of the Effects of Three Dose Pairs of Tipranavir/Ritonavir (b.i.d.) on the Pharmacokinetic Characteristics of Protocol -Defined, Baseline, Triple Drug Nucleoside and Non-nucleoside Reverse Transcriptase Inhibitor Therapy in HIV-1-infected Subjects.
1 other identifier
interventional
208
0 countries
N/A
Brief Summary
Primary: Sequentially determine the effects of three dose combinations of tipranavir (TPV) / ritonavir (RTV) (administered b.i.d.), TPV 1250 mg/RTV 100 mg vs. TPV 750 mg/RTV 100 mg vs. TPV 250 mg/RTV 200 mg on the steady-state pharmacokinetics of zidovudine, lamivudine, stavudine, didanosine, abacavir, nevirapine and efavirenz at approved doses. The three treatment groups will be enrolled sequentially starting with the highest tipranavir dosage group first and ending with the lowest tipranavir dosage group. Secondary: A) To assess the effects of zidovudine, lamivudine, stavudine, didanosine, abacavir, nevirapine, and efavirenz on the pharmacokinetics of tipranavir/ritonavir compared to historical controls. B) To assess the safety of three tipranavir/ritonavir combinations when used in combination with protocol defined antiretrovirals.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1 hiv-infections
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2001
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2002
CompletedFirst Submitted
Initial submission to the registry
September 25, 2014
CompletedFirst Posted
Study publicly available on registry
September 29, 2014
CompletedSeptember 29, 2014
September 1, 2014
1 year
September 25, 2014
September 25, 2014
Conditions
Outcome Measures
Primary Outcomes (3)
Change in trough plasma concentration (Cmin,ss) for non-nucleoside reverse transcriptase inhibitor (NNRTI)
stratified by substance
baseline, up to day 23
Change in area under plasma concentration-time curve over dosing interval (AUC0-τ) for nucleoside reverse transcriptase inhibitor (NRTI)
stratified by substance
baseline, up to day 22
Change in area under plasma concentration-time curve from 0 to 12 hours for didanosine (ddI)
baseline, up to day 22
Secondary Outcomes (10)
Cmin,ss
up to day 23
AUC0-τ
up to day 23
Maximum plasma concentration (Cmax)
up to day 23
Time of maximum plasma concentration (Tmax)
up to day 23
Oral clearance (Cl/F)
up to day 23
- +5 more secondary outcomes
Study Arms (3)
TPV/r low dose
EXPERIMENTALTPV/r medium dose
EXPERIMENTALTPV/r high dose
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- Signed informed consent prior to trial participation
- Between 18 and 75 years of age inclusive
- Female subjects of child bearing potential are required to use a barrier contraceptive method for at least 12 weeks prior to administration of study medication, during study medication administration, and for 28 days after the end of the study
- Ability to swallow capsules without difficulty
- A Body Mass Index (BMI) between 11 and 50 kg/m2
- Reasonable probability for completion of the study
- Acceptable screening laboratory values. All laboratory values ≤ Grade I (e.g., creatine phosphokinase (CPK), amylase, triglycerides) are permissible if documentation of stability for 2 months or more is available. Abnormalities \> Grade I are subject to approval by BI clinical monitor or designee
- Acceptable medical history, physical examination, ECG, and chest X-ray prior to entering the treatment phase of the study
- Willingness to abstain from alcohol from Day -2 to Day 23
- Willingness to abstain from ingesting grapefruit, grapefruit juice, Seville oranges or orange marmalade from Day -2 to Day 23
- Negative urine drug screen for drugs of abuse. Subjects on methadone or equivalent narcotic maintenance programs will be permitted to enter the study
- Documented HIV-1 RNA load (by PCR) at screening of ≤20,000 copies/mL for at least twelve weeks. Acceptable documentation would include laboratory data, a letter or a verbal report from another provider noted in the subject records.
- Stable doses of approved NRTIs and NNRTIs 2 for a minimum of twelve weeks prior to study Day 0. Subjects on efavirenz must be able to tolerate daily morning (8:00 a.m.) dosing starting at screening period and for 22 days of the study. Subjects receiving bid ddI must be willing to accept a change to the once a day delayed release (EC) formulation
You may not qualify if:
- Female subjects who:
- have a positive serum pregnancy test at Screening Period Day -14 to -7
- are breast feeding
- Receipt of any other investigational medicine for 30 days prior to Day 0
- Receipt of any known cytochrome P450 3A4 (CYP3A4) altering drug i.e. phenothiazines, cimetidine, barbiturates, ketoconazole, fluconazole, rifampin, steroids and herbal medications for 30 days prior to Day 0. No antibiotics permitted within 10 days prior to Day 0
- Ingestion of grapefruit, grapefruit juice, Seville oranges or orange marmalade within 2 days of study entry (Day 0)
- Blood or plasma donations (\>100 ml total) for research or altruistic reasons within 30 days prior to Day 0
- Seated systolic blood pressure either \<100 mm Hg or \>150 mm Hg; resting heart rate either \<50 beats/minute or \>90 beats/minute
- History of any illness, including malabsorption, irregular food intake or gastrointestinal intolerance, or allergy that, in the opinion of the investigator, might confound the results of the study or pose additional risk in administering TPV/RTV
- Any acute illness within 2 weeks prior to Day 0
- Subjects who are currently taking any over-the-counter drug within 7 days prior to Day 0, or who are currently taking any prescription drug that, in the opinion of the investigator (in consultation with the BI medical monitor and/or pharmacokineticist), might interfere with either the absorption, distribution or metabolism of the TPV/RTV
- Hypersensitivity to TPV, RTV or sulfonamide containing drugs
- Using the adherence diary, subject has less than 100% documented adherence for the last 14 doses (7 days) of baseline antiretroviral medications prior to Day 0. Subjects has less than 100% adherence for the last 7 doses (7 days) of efavirenz and ddI (delayed release) prior to Day 0
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 25, 2014
First Posted
September 29, 2014
Study Start
February 1, 2001
Primary Completion
February 1, 2002
Last Updated
September 29, 2014
Record last verified: 2014-09