We updated the design of this site on December 18, 2017. Learn more.
ClinicalTrials.gov Menu

Second-line Therapy (TASER-P)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT01788891
Recruitment Status : Completed
First Posted : February 11, 2013
Last Update Posted : May 11, 2016
Information provided by (Responsible Party):

February 7, 2013
February 11, 2013
May 11, 2016
January 2011
July 2015   (Final data collection date for primary outcome measure)
resistance [ Time Frame: week 72 ]
To monitor for resistance development and resistance patterns in children failing second-line ART over 72 weeks
Same as current
Complete list of historical versions of study NCT01788891 on ClinicalTrials.gov Archive Site
  • virologic failure [ Time Frame: week 72 ]
    To determine the frequency of virologic suppression defined as HIV-RNA <400 copies/ml over 72 weeks To determine the frequency of virologic failure as HIV RNA ≥1000 copies/ml over 72 weeks To evaluate predictors of virologic failure
  • drug resistance [ Time Frame: week 72 ]
    To assess HIV drug resistance patterns by virtual phenotyping
  • ARV drug levels [ Time Frame: week 72 ]
    To correlate ARV drug levels between plasma and hair samples To correlate hair ARV levels with virologic responses and measures of adherence
Same as current
Not Provided
Not Provided
Second-line Therapy
TASER-Pediatrics: Prospective Monitoring of Second-line Antiretroviral Therapy Failure and Resistance in Children
This study will help identify which ARV candidates should be prioritized for pediatric use in resource-limited settings

Children in resource-limited settings are increasing experiencing treatment failure, as defined by virologic, immunologic, and/or clinical criteria. There are few studies of HIV resistance mutations in children failing first line NNRTI therapy in resource limited settings. The emergence of treatment failure and drug resistance in children on ART emphasizes the urgency for developing evidence-based second-line and salvage treatment strategies. Pediatric treatment is complicated by a number of factors, including having fewer numbers of ARVs approved by drug safety agencies and the lack of pediatric formulations. This further shortens the list of available second-line ARVs as compared to adults.

Despite the growing number of children on second-line therapy worldwide, there are limited data on efficacy of second-line PI therapy in children after NRTI-NNRTI failure. There are currently no options for third-line/salvage regimens for children in resource-limited settings. New drugs and drug classes are approved for use in children by the US FDA but are not routinely available outside of high-income settings.

Also, there are no data on the resistance patterns of children failing second-line therapy in resource-limited settings to guide clinical management and ARV procurement. Clinicians need evidence-based guidelines for how to manage children with treatment failure, and access to the drugs necessary to construct potent and durable third-line regimens.

TASER-P is a longitudinal observational cohort study to monitor for treatment failure to second-line ART in Asian children.

Observational Model: Cohort
Time Perspective: Prospective
Not Provided
Retention:   Samples Without DNA
Blood and hair will be used for therapeutic drug monitoring (TDM). Blood drawn at every visit will be used to assess CD4 count, viral load, and other basic chemistry test panel. If necessary, drug resistant tests will also be carried out on the blood samples.
Non-Probability Sample
HIV-positive children <18 years old who are have switched to or treated with second-line ART at one of the participating TREAT Asia Pediatric HIV Observational Database (TApHOD) sites.
Treatment Failure of Second-line ART in Asian HIV-infected Children
Not Provided
second-line pediatric cohort
Asian HIV-positive children <18 years old who are receiving HIV care at one of the participating TREAT Asia Pediatric HIV Observational Database (TApHOD) sites that have been identified for TASER-P participation will be monitored for treatment failure of second-line ART
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
July 2015
July 2015   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Age < 18 years old
  • Have confirmed HIV infection
  • Are being switched to or treated with second-line ART. Second-line ART is defined as the second regimen with a major antiretroviral class switch. For example, a switch from an NNRTI-based to a PI-based regimen or vice versa
  • Caregivers give informed consent. Children will be asked to give assent if they know their HIV status and have reached the minimum age to give assent according to each site's institutional review board regulations

Exclusion Criteria:

  • Started mono- or dual- therapy as the first ART therapy
  • Failing first-line triple nucleoside reverse transcriptase inhibitor regimen
  • Are being switched to or treated with second-line ART without failure of first-line therapy (i.e., for toxicity)
  • Caregiver +/- child (if asked to give assent) refuses to participate in this study
  • Have not been enrolled in TApHOD
Sexes Eligible for Study: All
up to 18 Years   (Child, Adult)
Contact information is only displayed when the study is recruiting subjects
Indonesia,   Malaysia,   Thailand,   Vietnam
Not Provided
Not Provided
The HIV Netherlands Australia Thailand Research Collaboration
The HIV Netherlands Australia Thailand Research Collaboration
  • amfAR, The Foundation for AIDS Research
  • Dr Cipto Mangunkusumo General Hospital
  • Pediatric Institute, Hospital Kuala Lumpur
  • Chiang Mai University
  • Srinagarind Hospital, Khon Kaen University
  • Mahidol University
  • Children's Hospital Number 1, Ho Chi Minh City, Vietnam
  • Children's Hospital Number 2, Ho Chi Minh City, Vietnam
  • The Kirby Institute for Infection and Immunity in Society
  • University of California, San Francisco
Principal Investigator: Nia Kurniati, MD Dr Cipto Mangunkusumo General Hospital
Principal Investigator: Kamarul Razali, MD Kuala Lumpur General Hospital
Principal Investigator: Tavitiya Sudjaritruk, MD Research Institute for Health Sciences, Chiang Mai University
Principal Investigator: Pope Kosalaraksa, MD Srinagarind Hospital, Khon Kaen Hospital
Principal Investigator: Kulkanya Chokephaibulkit, MD Siriraj Hospital
Principal Investigator: Truong Huu Khanh, MD Children's Hospital Number 1
Principal Investigator: Do Chau Viet, MD Children's Hospital Number 2
Principal Investigator: Jintanat Ananworanich, MD, PhD The HIV Netherlands Australia Thailand Research Collaboration
Principal Investigator: Annette Sohn, MD TREAT Asia
The HIV Netherlands Australia Thailand Research Collaboration
May 2016