Study to Determine the Pharmacokinetic Behavior of Antiretroviral Drugs in Patients Infected by HIV

NCT ID: NCT00307502

Last Updated: 2019-12-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

675 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-01-31

Study Completion Date

2009-12-31

Brief Summary

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The purpose of this study is to characterise the pharmacokinetic profiles of non-nucleoside analog reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs), and the influence of the individual characteristics on the pharmacokinetic parameters in the Spanish population of HIV-infected subjects.

Detailed Description

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The antiretrovirals were administered conventionally according to fixed dosage systems, or depending on the weight of the individual in the case of certain agents. However, the plasma levels of antiretrovirals following the administration of a fixed dose present a marked interindividual variability. Moreover, a significant proportion of the patients on treatment with PIs presented plasma levels regarded as suboptimal in previous studies.

Moreover, for the correct modification of the dosage of a drug, populational data on its pharmacokinetic behaviour during the dosing interval is required. Only by integrating this information with the specific characteristics of each individual is it possible, using mathematical models, to estimate the effect that a modification of the dosage of the drug would have on its plasma concentration. However, populational data on the pharmacokinetic behaviour of antiretroviral agents are still very limited at this moment, and have not always been obtained in populations similar to the one to which they are to be applied.

Thus, knowing the pharmacokinetic behaviour of the antiretroviral agents in our population and the influence of certain individual characteristics on this behaviour may be of great interest, since only in this way will we be able to tailor the dosage of antiretrovirals reliably in our patients.

Conditions

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HIV Infections

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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NVP

Nevirapine

Group Type EXPERIMENTAL

Nevirapine

Intervention Type DRUG

tablets 200 mg, 400 mg/day

EFV

Efavirenz

Group Type EXPERIMENTAL

Efavirenz

Intervention Type DRUG

tablets 600 mg, 600 mg/day

INV

Indinavir/ritonavir

Group Type EXPERIMENTAL

Indinavir/ritonavir

Intervention Type DRUG

Indinavir: capsules 400 mg, 1600 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

NFV

Nelfinavir

Group Type EXPERIMENTAL

Nelfinavir

Intervention Type DRUG

tablets 250 mg, 2500 mg/day

SQV

Saquinavir/ritonavir

Group Type EXPERIMENTAL

Saquinavir/ritonavir

Intervention Type DRUG

Saquinavir: tablets 500 mg, 2000 mg/day

Ritonavir: tablets 100 mg, 200 mg/day

LPV

Lopinavir/ritonavir

Group Type EXPERIMENTAL

Lopinavir/ritonavir

Intervention Type DRUG

tablets lopinavir 200 mg + ritonavir 50 mg, 800/200 mg/day

ATV

Atazanavir

Group Type EXPERIMENTAL

Atazanavir

Intervention Type DRUG

capsules 200 mg, 400 mg/day

ATV/rtv

Atazanavir/ritonavir

Group Type EXPERIMENTAL

Atazanavir/ritonavir

Intervention Type DRUG

Atazanavir: capsules 150 mg, 300 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

Fos-APV

Fos-amprenavir/ritonavir

Group Type EXPERIMENTAL

Fos-amprenavir/ritonavir

Intervention Type DRUG

Fos-amprenavir: capsules 700 mg, 1400 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

TPV

Tipranavir/ritonavir

Group Type EXPERIMENTAL

Tipranavir/ ritonavir

Intervention Type DRUG

Tipranavir: tablets 250 mg, 1000 mg/day

Ritonavir: capsules 100 mg, 400 mg/day

DRV

Darunavir/ritonavir

Group Type EXPERIMENTAL

Darunavir/ritonavir

Intervention Type DRUG

Darunavir: tablets 300 mg, 1200 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

Interventions

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Nevirapine

tablets 200 mg, 400 mg/day

Intervention Type DRUG

Efavirenz

tablets 600 mg, 600 mg/day

Intervention Type DRUG

Indinavir/ritonavir

Indinavir: capsules 400 mg, 1600 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

Intervention Type DRUG

Nelfinavir

tablets 250 mg, 2500 mg/day

Intervention Type DRUG

Saquinavir/ritonavir

Saquinavir: tablets 500 mg, 2000 mg/day

Ritonavir: tablets 100 mg, 200 mg/day

Intervention Type DRUG

Lopinavir/ritonavir

tablets lopinavir 200 mg + ritonavir 50 mg, 800/200 mg/day

Intervention Type DRUG

Atazanavir

capsules 200 mg, 400 mg/day

Intervention Type DRUG

Atazanavir/ritonavir

Atazanavir: capsules 150 mg, 300 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

Intervention Type DRUG

Fos-amprenavir/ritonavir

Fos-amprenavir: capsules 700 mg, 1400 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

Intervention Type DRUG

Tipranavir/ ritonavir

Tipranavir: tablets 250 mg, 1000 mg/day

Ritonavir: capsules 100 mg, 400 mg/day

Intervention Type DRUG

Darunavir/ritonavir

Darunavir: tablets 300 mg, 1200 mg/day

Ritonavir: capsules 100 mg, 200 mg/day

Intervention Type DRUG

Other Intervention Names

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Viramune Sustiva Crixivan/norvir Viracept Invirase/Norvir Kaletra Reyataz Reyataz/Norvir Telzir/norvir Aptivus/Norvir Prezista/norvir

Eligibility Criteria

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Inclusion Criteria

1. Age higher than 18 years.
2. Documented HIV infection (at least one positive Western-blot)
3. Stable antiretroviral treatment with PI or NNRTI, no changes over the last 4 weeks.
4. Women may not be of fertile age (defined as at least one year from menopause or undergoing any surgical sterilisation technique), or negative pregnancy test.

Exclusion Criteria

1. Subjects on treatment with more than one PI or with combinations of PI and NNRTI (the use of ritonavir in doses below 400 mg BID will not be regarded as a second PI).
2. Treatment with other drugs with known significant pharmacological interactions with the investigational drug over the previous two weeks.
3. Unsuitable adherence to treatment (one or more doses omitted in the last week, or two or more doses omitted in the last two weeks).
4. Presence of clinical findings or a background of gastrointestinal disease or digestive surgery that may interfere in the pharmacokinetics of the medication.
5. Active consumption of alcohol (\>50 grams/day) or illegal drugs (except cannabis).
6. In the case of women, pregnancy or breastfeeding.
7. Record or suspicion of inability to cooperate properly
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Fundación FLS de Lucha Contra el Sida, las Enfermedades Infecciosas y la Promoción de la Salud y la Ciencia

OTHER

Sponsor Role collaborator

Germans Trias i Pujol Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Bonaventura Clotet, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Lluita contra la Sida Foundation-HIV Unit

Locations

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Germans Trias i Pujol Hospital

Badalona, Barcelona, Spain

Site Status

Hospital de Figueres

Figueras, Barcelona, Spain

Site Status

Fundació Hospital-Asil de Granollers

Granollers, Barcelona, Spain

Site Status

Hospital de Vic

Vic, Barcelona, Spain

Site Status

Hospital Universitari Sant Joan de Reus

Reus, Tarragona, Spain

Site Status

Hospital de la Santa Creu i Sant Pau

Barcelona, , Spain

Site Status

Countries

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Spain

References

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Molto J, Xinarianos G, Miranda C, Pushpakom S, Cedeno S, Clotet B, Owen A, Valle M. Simultaneous pharmacogenetics-based population pharmacokinetic analysis of darunavir and ritonavir in HIV-infected patients. Clin Pharmacokinet. 2013 Jul;52(7):543-53. doi: 10.1007/s40262-013-0057-6.

Reference Type DERIVED
PMID: 23494984 (View on PubMed)

Other Identifiers

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2004-001516-32

Identifier Type: -

Identifier Source: secondary_id

PK-TRANSVERSAL

Identifier Type: -

Identifier Source: org_study_id

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