Therapeutic Drug Monitoring (TDM) in Generic Tenofovir/Lamivudine/Efavirenz

July 15, 2020 updated by: The HIV Netherlands Australia Thailand Research Collaboration

Generic Fixed Dose Combination (FDC) of Tenofovir(TDF) /Lamivudine(3TC)/Efavirenz (EFV) Tablets 300/300/600 mg

The purpose of this study is to determine the mid levels of the tenofovir, lamivudine, and efavirenz, and 144 weeks safety and efficacy of the generic fixed dose combination of tenofovir /lamivudine/efavirenz tablets 300/300/600 mg in Thai HIV-infected patients.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The trial drug FDC of TDF/3TC/EFV is a new formulation combining fixed doses of the nucleoside reverse transcriptase inhibitors lamivudine 300 mg and tenofovir disoproxil fumarate 300 mg with the non nucleoside reverse transcriptase inhibitor efavirenz 600 mg for once daily and one-tablet HAART. Co-formulated TDF/3TC/EFV demonstrated bioequivalent to original individual EFV 3TC and TDF in Indian healthy volunteers (unpublished data). It has not been evaluated in clinical trials.

Study Type

Interventional

Enrollment (Actual)

100

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Thailand
      • Bangkok, Thailand, 10330
        • HIV-NAT

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Signed informed consent
  • Evidence of HIV infection
  • Age> 18 years
  • On a TDF/3TC/EFV (separated pills) containing HAART regimen with a VL < 50 copies within 24 weeks or ARV naïve
  • eGFR >70 cc/min
  • Currently having no AIDS defining illness
  • No history of NRTI/NNRTI/PI failure
  • Willing to adhere to the protocol requirements

Exclusion Criteria:

  • Any history of taking CYP450 inhibitors or inducers drugs within 14 days of enrollment in the study
  • Current pregnancy or lactating or plan to be pregnant
  • Active opportunistic infection
  • ALT more than 2 x upper limit
  • Creatinine more than 1.5 time the upper limit
  • Active drug abuse

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: 1
Patients can be either treatment-naïve or treatment-experienced when entering this clinical trial. After meeting the inclusion and exclusion criteria, patients will start with generic FDC of TDF/3TC/EFV 1 pill a day at night time. Only patient who are on individual TDF 3TC and EFV will undergo TDM sampling ( 11-13 hours after dosing) at baseline.
Drug: generic FDC of TDF/3TC/EFV
Patients who were on individual TDF 3TC and EFV regimen before baseline will undergo TDM at baseline. Therapeutic drug monitoring (TDM) of generic FDC of TDF/3TC/EFV will be done after 4 weeks, to ensure steady state. At baseline and week 4 safety data will be obtained. In order to assess the efficacy and the long term safety of this drug, at week 12, 24 and 48 viral load, CD4 and safety parameters will be obtained.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
mid levels of TDF, 3TC, and EFV between brand and generic
Time Frame: 144 weeks
mid levels of TDF, 3TC, and EFV between brand and generic
144 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
kidney, liver, CD4 and viral load overtime
Time Frame: 144 weeks
kidney, liver, CD4 and viral load overtime
144 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The HIV Netherlands Australia Thailand Research Collaboration

Collaborators

Mylan Laboratories

Investigators

  • Principal Investigator: Anchalee Avihingsanon, MD, PhD, The HIV Netherlands Australia Thailand Research Collaboration

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

  • Avihingsanon A, Sophonphan J, Thammajaruk N, Chaihong P, Burger D, Cressey TR, Ramautarsing RA, Praditornsilpa K, Avihingsanon Y, Ruxrungtham K and HIV-NAT 114 study team. Plasma Tenofovir Concentrations and Proximal Tubular Dysfunction in HIV-Infected Adults Receiving Tenofovir in Thailand. AIDS Clin Res 2015, 6:7 Doi: http://dx.doi.org/10.4172/2155-6113.1000477

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2010

Primary Completion (Actual)

May 1, 2013

Study Completion (Actual)

June 1, 2015

Study Registration Dates

First Submitted

June 9, 2010

First Submitted That Met QC Criteria

July 9, 2010

First Posted (Estimate)

July 12, 2010

Study Record Updates

Last Update Posted (Actual)

July 17, 2020

Last Update Submitted That Met QC Criteria

July 15, 2020

Last Verified

July 1, 2020

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • HIV-NAT 118

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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