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HealthyPhase 1NCT02251145

Effects of Tipranavir (TPV) and Ritonavir (RTV) on the Pharmacokinetic Characteristics of Tenofovir Disoproxil Fumarate in Healthy Volunteers

A Phase 1 study testing Tipranavir low dose, Tipranavir high dose and Ritonavir low dose in people with Healthy, run by Boehringer Ingelheim.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Study to characterise the effects of two dose combinations of tipranavir/ritonavir (TPV 500 mg/RTV 100 mg and TPV 750 mg/RTV 200 mg) administered BID, on the pharmacokinetics of tenofovir disoproxil fumarate as well as the effects of tenofovir disoproxil fumarate on the pharmacokinetics of tipranavir/ritonavir. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Tipranavir low dose, Tipranavir high dose and Ritonavir low dose
Could I receive a placebo?
No, everyone receives an active treatment
How many people
49 participants
Where
No sites listed yet
Study dates
May 2002to Jun 2002
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Ability and willingness to give written informed consent in accordance with institutional and regulatory guidelines and to comply with the investigational nature of the study and the related requirements
  • Healthy males or females between 18 and 60 years of age inclusive
  • A Body Mass Index >18.5 and <30 kg/m2
  • Ability to swallow numerous large capsules without difficulty
  • Reasonable probability for completion of the study, in the opinion of the investigator
  • Acceptable laboratory values that indicate adequate baseline organ function are required at the time of screening. Laboratory values are considered to be acceptable if severity <= Grade1 based on the AIDS Clinical Trials Group (ACTG) Division of AIDS (DAIDS) Grading Scale. All abnormal laboratory values > Grade 1 (e.g., creatine phosphokinase (CPK), amylase, triglycerides) are subject to approval by the BIPI clinical monitor. Cholesterol <= 240mg/dL at the time of screening is necessary for study entry
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  • Acceptable medical history, physical examination and ECG are required prior to entering the study
  • Willingness to abstain from alcohol for 48 hours prior to Study Day 0 and abstain from alcohol for the duration of the study. In addition, Cabernet Sauvignon must not have been ingested within 15 days prior to Day 0 (Visit 2)
  • Willingness to abstain from ingesting grapefruit and grapefruit juice within 15 days of Day 0, Visit 2 and for the duration of the study
  • Willingness to abstain from ingesting Seville oranges, strawberries or strawberry extract, garlic supplements, St. John's Wort, Milk Thistle, or methylxanthine-containing drinks or food (coffee, tea, cola, energy drinks, chocolate, etc) within 72 hours of pharmacokinetic (PK) sampling days
  • Willingness to abstain from use of tobacco products for the duration of the study
  • Urine drug screen negative for illegal non-prescription drugs
  • Negative HIV serology
  • Negative for Hepatitis B surface antigen and Hepatitis C

Who cannot join

  • Female subjects who are of reproductive potential who:
  • Have a positive serum B-HCG at Visit 1 or 2 or
  • Have not been using regular oral contraception (combined oestrogen and progestogen pill or progestogen only pill) for 3 months and a barrier contraceptive method for at least 30 days prior to Visit 3 (Day 1) or a barrier contraceptive method for at least 3 months prior to Visit 3 (Day 1) or
  • Are not willing to use a reliable method of double-barrier contraception (such as diaphragm with spermicidal cream/jelly or condoms with spermicidal foam)during the trial and 30 days after completion/termination or
  • Are breast-feeding
  • Participation in another trial with an investigational medicine for 30 days prior to Day 0 (Visit 2)
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  • Ingestion of any known enzyme altering drug (such as phenothiazines, cimetidine, barbiturates, ketoconazole, fluconazole, rifampin, steroids, and herbal medications) for 30 days prior to Day 0 (Visit 2). Use of any other herbal/complementary treatment must be discussed in advance with the monitor and permission obtained prior to study entry
  • Ingestion of grapefruit, grapefruit juice, and Cabernet Sauvignon within 15 days prior to Day 0 (Visit 2)
  • Ingestion of Seville oranges, strawberries or strawberry extract, garlic supplements, St. John's Wort, Milk Thistle, or methylxanthine-containing drinks or food (coffee, tea, cola, energy drinks, chocolate, etc) within 72 hours of PK sampling days
  • Ingestion of antibiotics within 10 days prior to Day 0 (Visit 2)
  • Inability to comply with investigator's instructions
  • History of gastrointestinal, hepatic, or renal disorders within 60 days
  • History of alcohol abuse
  • Current use of cigarettes defined as greater than 10 cigarettes per day or rolling/pipe tobacco equivalent
  • Blood or plasma donations within 30 days prior to Day 0 (Visit 2)
  • Subjects with a seated systolic blood pressure either <100 mm Hg or >150 mm Hg; resting heart rate either <50 beats/min or >100 beats/min
  • Subjects with a history of any illness or allergy that, in the opinion of the investigator, might confound the results of the study or pose additional risk in administering tipranavir or ritonavir or tenofovir disoproxil fumarate to the subject
  • Subjects who have had an acute illness within 2 weeks prior to Day 0 (Visit 2)
  • Subjects who are currently taking any over-the-counter drug within 7 days prior to Day 0, (Visit 2) or who are currently taking any prescription drug that, in the opinion of the investigator in consultation with the clinical monitor and pharmacokineticist, might interfere with either the absorption, distribution or metabolism of the test substances
  • Hypersensitivity to tipranavir, ritonavir, or tenofovir disoproxil fumarate

About this study

Official title: A Single Centre, Open-Label, Randomised, Parallel, Multiple Dose Comparison of the Effects of Tipranavir 500 mg and Ritonavir 100 mg or Tipranavir 750 mg and Ritonavir 200 mg Twice a Day for 11.5 Days on the Pharmacokinetic Characteristics of Tenofovir Disoproxil Fumarate 300 mg in Healthy Volunteers

Study to characterise the effects of two dose combinations of tipranavir/ritonavir (TPV 500 mg/RTV 100 mg and TPV 750 mg/RTV 200 mg) administered BID, on the pharmacokinetics of tenofovir disoproxil fumarate as well as the effects of tenofovir disoproxil fumarate on the pharmacokinetics of tipranavir/ritonavir.

Conditions
Healthy
Being tested
Tipranavir low dose, Tipranavir high dose, Ritonavir low dose, Ritonavir high dose, Tenofovir disoproxil fumarate

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tipranavir low doseDrug

  • Tipranavir high doseDrug

  • Ritonavir low doseDrug

  • Ritonavir high doseDrug

  • Tenofovir disoproxil fumarateDrug

Study groups in NCT02251145
Study groupRoleWhat they receive
tipranavir/ritonavir low doseExperimentalNot described
Receives: Drug: Tipranavir low dose; Drug: Ritonavir low dose; Drug: Tenofovir disoproxil fumarate
tipranavir/ritonavir high doseExperimentalNot described
Receives: Drug: Tipranavir high dose; Drug: Ritonavir high dose; Drug: Tenofovir disoproxil fumarate

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Area under plasma concentration time curve from 0-24 hours (AUC0-24) for tenofovir

    Measured: up to 24 hours

  2. Area under plasma concentration time curve from 0-12hours (AUC0-12) for tipranavir/ritonavir

    Measured: up to 12 hours

  3. Maximum plasma concentration (Cmax)

    Measured: up to 24 hours

  4. Drug concentration in plasma at 12 hours after administration (C12h) for tenofovir

    Measured: up to 12 hours

  5. Drug concentration in plasma at 12 hours after administration (C12h) for tipranavir/ritonavir

    Measured: up to 12 hours

Secondary outcomes (12)
  1. Maximum plasma concentration at steady state (Cmax,ss)

    Measured: up to 24 hours

  2. Trough plasma concentration at steady state (Cmin)

    Measured: up to 24 hours

  3. Mean residency time (MRT)

    Measured: up to 24 hours

  4. Apparent terminal half life (T1/2)

    Measured: up to 24 hours

  5. Time of maximum concentration (Tmax)

    Measured: up to 24 hours

  6. Oral clearance (CL/F)

    Measured: up to 24 hours

  7. Apparent volume of distribution during the terminal elimination phase, divided by F (bioavailability factor) (Vz/F)

    Measured: up to 24 hours

  8. Number of subjects with clinically significant findings in vital signs (pulse rate, blood pressure)

    Measured: up to 14 days

  9. Number of subjects with clinically significant findings in physical examination

    Measured: up to 14 days

  10. Number of subjects with clinically significant findings in electrocardiogram

    Measured: up to 14 days

  11. Number of subjects with clinically significant findings in laboratory tests

    Measured: up to 14 days

  12. Number of subjects with adverse events

    Measured: up to 14 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Sep 2014 (estimated)
  2. Study startMay 2002
  3. Primary completionJun 2002

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
49 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02251145
Sponsor's protocol ID
1182.46
Status last verified
Sep 2014
First submitted
25 Sep 2014
Last updated
29 Sep 2014
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Tipranavir low dose, Tipranavir high dose and Ritonavir low dose in people with Healthy, run by Boehringer Ingelheim.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 14 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 29 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Area under plasma concentration time curve from 0-24 hours (AUC0-24) for tenofovir (time frame: up to 24 hours). The study lists 5 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2014.

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