Nevirapine Dosing in Neonates for Prophylaxis of Mother-to-Child-Transmission (MTCT) of HIV Infection

November 17, 2015 updated by: Ari Bitnun, The Hospital for Sick Children
The purpose of this study is to determine whether the current dose of nevirapine recommended in the Ontario Ministry of Health vertical transmission prevention protocol achieves therapeutic drug levels in newborn infants at high risk of HIV infection.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

Although nevirapine (NVP) is often given as part of combination antiretroviral therapy (cART) at our institutions for prevention of vertical transmission (VT) in high risk infants, the optimal prophylactic dose of nevirapine is unknown. The National Institute of Health (NIH) guidelines currently recommend a single 2 mg/kg dose of nevirapine given to the infant within 72 hours of birth, however, this dose is not being used in practice given the controversies previously described with single-dose nevirapine. In the absence of any guidance to inform the multiple daily dosing of nevirapine for prophylaxis of VT, we are currently using the treatment dose for infants >15 days of age of 150 mg/m2 once daily for 14 days, then increasing to 150 mg/m2 twice daily for 14 days. This is analogous to the treatment dosing of triple antiretrovirals (ARVs) that is given for occupational post-exposure prophylaxis. Nevirapine is given for 4 weeks total with zidovudine (AZT) and lamivudine (3TC), followed by 2 additional weeks of AZT and 3TC to prevent the development of nevirapine resistance from its long half life. Stopping all 3 drugs simultaneously would result in a period of functional NVP monotherapy, resulting in a risk of NVP resistance should the infant become infected despite prophylaxis. Since the dose of nevirapine being used in our clinic populations for prevention of VT is higher than has been previously studied in neonates, it is important to evaluate the safety and efficacy of this dosing regimen, using therapeutic drug monitoring.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
27

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

  • Canada
    • Ontario
      • Ottawa, Ontario, Canada
        • Children's Hospital of Eastern Ontario
      • Toronto, Ontario, Canada, M5G1X8
        • The Hospital for Sick Children

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

No older than 3 days (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

The patients in this study are newborn infants clinically prescribed combination antiretroviral treatment with nevirapine for prevention of mother-to-child HIV transmission. These infants are routinely referred to the SickKids and CHEO HIV clinics in Toronto and Ottawa, respectively, for ongoing management. The majority of referrals are from Mount Sinai Hospital and St. Michael's Hospital in Toronto, and the Ottawa General Hospital in Ottawa.

Description

Inclusion Criteria:

  • Newborn infants prescribed combination antiretroviral treatment with nevirapine for prevention of mother-to-child HIV transmission. These infants are routinely referred to the Hospital for Sick Children (SickKids) and Children's Hospital of Eastern Ontario (CHEO) HIV clinics in Toronto and Ottawa, respectively, for ongoing management. The majority of referrals are from Mount Sinai Hospital and St. Michael's Hospital in Toronto, and the Ottawa General Hospital in Ottawa.
  • Voluntary informed consent by the legal guardian

Exclusion Criteria:

  • Infants born prior to 32 weeks gestational age;
  • Infants with life-threatening medical conditions;
  • Infants unable to take oral medication;
  • Infants born to women considered at high risk of harboring nevirapine resistance mutations in whom Kaletra (lopinavir/ritonavir) is a therapeutic option (e.g. term neonates) will be excluded and prescribed Kaletra rather than nevirapine

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Nevirapine
The patients in this study are newborn infants clinically prescribed combination antiretroviral treatment with nevirapine for prevention of mother-to-child HIV transmission.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Proportion of nevirapine trough (Cmin) plasma levels that are above or below the target range for prophylaxis
Time Frame: Weeks 1, 2, and 4
Weeks 1, 2, and 4

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Final dose of nevirapine
Time Frame: Week 4
Final dose of nevirapine required to achieve target plasma trough concentrations at week 4
Week 4
Derived pharmacokinetic parameters
Time Frame: Week 4
Derived pharmacokinetic parameters volume of distribution (Vd)(L/kg), elimination rate (ke), clearance (mL/kg/hr), Cmin (ug/L), Cmax (ug/L), Tmax (hrs), and Area under the Curve (AUC)
Week 4
Association between nevirapine levels and incidence of adverse effects
Time Frame: Weeks 1, 2 and 4
Number of adverse events among patients with therapeutic vs. supratherapeutic nevirapine levels
Weeks 1, 2 and 4
Association between patient characteristics and differences in nevirapine levels
Time Frame: Baseline, Week 1, 2 and 4
Patient characteristics that may explain differences in nevirapine levels including chronologic and gestational age, weight, and ethnic background.
Baseline, Week 1, 2 and 4
Rate of vertical transmission of HIV
Time Frame: 18 months
18 months

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The Hospital for Sick Children

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Unity Health Toronto
Children's Hospital of Eastern Ontario
Mount Sinai Hospital, Canada
Canadian Foundation for AIDS Research (CANFAR)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ari Bitnun, MD, The Hospital for Sick Children

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2012

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 5, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 14, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 18, 2014

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 18, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 17, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 1000029134

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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