Development of AntiRetroviral Therapy in Africa - a randomised trial of monitoring practice and structured treatment interruptions in the management of antiretroviral therapy in adults with HIV infection in Africa

ISRCTN ISRCTN13968779
DOI https://doi.org/10.1186/ISRCTN13968779
Secondary identifying numbers G0000068
Submission date
18/10/2000
Registration date
18/10/2000
Last edited
27/02/2017
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Infections and Infestations
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

http://www.ctu.mrc.ac.uk/research_areas/study_details.aspx?s=12

Study website

Contact information

Prof Janet Darbyshire
Scientific

MRC Clinical Trials Unit
222 Euston Road
London
NW1 2DA
United Kingdom

Phone +44 (0)20 7670 4780
Email dart@ctu.mrc.ac.uk

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Not specified
Study typeTreatment
Participant information sheet Patient information can be found at: http://www.ctu.mrc.ac.uk/dart/faq.asp
Scientific titleDevelopment of AntiRetroviral Therapy in Africa - a randomised trial of monitoring practice and structured treatment interruptions in the management of antiretroviral therapy in adults with HIV infection in Africa
Study acronymDART
Study hypothesisTo compare, in terms of clinical HIV disease progression or death:
1. Clinical monitoring only (CMO) versus routine regular laboratory and clinical monitoring (LCM)
2. Structured Treatment Interruptions (STIs: 12 weeks on, 12 weeks off therapy) versus continuous ART, initiated if the CD4 count has increased to 200 cells/mm3 or above (after 24 or 48 weeks on ART) [updated June 2006 from 300 cells/mm3 or above (after 48 or 72 weeks on ART)]
The hypothesis is that CMO will result in similar outcomes to LCM, and that ART administered as pulse therapy (STI) will result in similar outcomes to continuous ART, in terms of progression of clinical HIV disease or death.
STI Pilot Study Objectives: The initial non-randomised pilot study of STIs will inform on the safety of the 12 weeks on, 12 weeks off STI strategy and only after the completion of this substudy will the second randomisation commence.
Abacavir Safety Substudy Nevirapine OR Abacavir (NORA) Substudy Objectives: This randomised sub-study of 600 patients will address issues of safe administration of Abacavir in resource poor settings and will compare the safety of Abacavir with that of Nevirapine when used in combination with Combivir.
Ethics approval(s)Protocol approved in Uganda, Zimbabwe and United Kingdom
ConditionHuman Immunodeficiency Virus (HIV), Acquired Immunodeficiency Syndrome (AIDS)
InterventionRandomisation to Clinical Monitoring Only (CMO) or Laboratory and Clinical Monitoring (LCM):
3300 patients will be randomised to CMO or LCM over a period of 1-2 years. Randomisation will be stratified by CD4 count (0-99, 100-199) clinical site and by third drug (Tenofovir DF, Nevirapine or NORA substudy).

Structured Treatment Interruptions (STI):
Because there were no data on STI in the African setting, where patients are likely to have low CD4 cell counts before starting ART, a non-randomised pilot study of the first 100 patients eligible for the STI randomisation was undertaken. Following the successful completion of this pilot a randomisation to STI or continuous antiretroviral therapy (ART) was opened to patients when they reached 52 or 76 weeks of DART if they had a CD4 count of ≥300 at week 48 or 72.

NORA substudy:
A randomised, double-blind, phase II (substudy) trial to evaluate the toxicity of Abacavir compared with Nevirapine, both in combination with Ziduvudine + Lamivudine (Combivir), as first-line antiretroviral therapy in patients participating in the DART trial.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)
Primary outcome measure1. Efficacy: Progression to a new WHO stage 4 HIV event or death
2. Safety: Any serious adverse event, which is not HIV related
Secondary outcome measures1. Progression to a new or recurrent WHO stage 4 HIV event or death
2. Progression to a new WHO stage 4 HIV event or death from 6 weeks after randomisation
3. Progression to a new or recurrent WHO stage 4 HIV event or death from 6 weeks after randomisation
4. Any grade 3 or 4 adverse events
5. Number and class of anti-HIV drugs received by 3 years
6. Time to cessation of first-line regimen for failure
7. Adherence as measured by questionnaire and pill counts
8. CD4 count at 3 years (provided that it is at least 2 months after restarting ART for those in the STI group)
9. HIV RNA viral load (performed retrospectively) at 3 years (providing that it is at least 2 months after restarting ART for those in the STI group)
10. HIV resistance profiles at 3 years in those with detectable viral load (providing that it is at least 2 months after restarting ART for those in the STI group)
Overall study start date15/01/2003
Overall study end date31/12/2007

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants3300
Participant inclusion criteria1. Documentation of HIV-1 infection: antibody positive serology by enzyme-linked immunosorbent
assay (ELISA) test (confirmed by licensed second ELISA or Western Blot)
2. Age ≥18 years
3. Symptomatic WHO stage 2, 3 or 4 HIV disease and CD4 <200 cells/mm3
4. ART naïve (except for ART use during pregnancy for the prevention of mother-to-child HIV transmission)
5. Agreement and documented informed consent to be randomised to CMO or LCM and to STI or continuous ART, if eligible
6. Life expectancy of at least 3 months
Participant exclusion criteria1. Cannot or unlikely to attend regularly (e.g. usual residence too far from Study Centre)
2. Likelihood of poor compliance
3. Presence of acute infection (e.g. malaria, acute hepatitis, pneumococcal pneumonia, non-typhoid salmonella septicaemia, cryptococcal meningitis). Patients may be admitted after recovery of an acute infection. Patients with tuberculosis (TB) will not be enrolled while on the intensive phase of anti-tuberculosis therapy, but should be re-evaluated after the intensive phase and a decision made then about starting ART. Patients starting ART whilst on anti-tuberculosis therapy after the intensive phase will not receive NVP, nor will they be randomised into the NORA substudy.
4. On chemotherapy for malignancy
5. Laboratory abnormalities which are a contraindication for the patient to start ART (e.g. haemoglobin <8 g/dl, total white blood cell count [WBC] <0.75 x 10^9/l, aspartate aminotransferase [AST] or alanine aminotransferase [ALT] >5 x the upper limit of normal [ULN], grade 3 renal dysfunction - creatinine >360 µmol/l and/or urea >5 x ULN)
6. Pregnancy or breastfeeding
Recruitment start date15/01/2003
Recruitment end date28/10/2004

Locations

Countries of recruitment

  • England
  • Uganda
  • United Kingdom
  • Zimbabwe

Study participating centre

MRC Clinical Trials Unit
London
NW1 2DA
United Kingdom

Sponsor information

Medical Research Council (MRC) (UK)
Research council

Clinical Trials Unit
222 Euston Road
London
NW1 2DA
United Kingdom

Website http://www.ctu.mrc.ac.uk/
ROR logo "ROR" https://ror.org/03x94j517

Funders

Funder type

Government

Medical Research Council (UK)
Government organisation / National government
Alternative name(s)
Medical Research Council (United Kingdom), UK Medical Research Council, MRC
Location
United Kingdom
Department for International Development
Government organisation / National government
Alternative name(s)
Department for International Development, UK, DFID
Location
United Kingdom
Rockefeller Foundation (USA)
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
The Rockefeller Foundation, Rockefeller Fdn, RF
Location
United States of America
Antiretroviral drugs donated by Gilead (USA), GlaxoSmithKline (UK), Boehringer-Ingelheim (Germany)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Other publications publication on prevalence, incidence and predictors of severe anaemia 01/06/2006 Yes No
Other publications publication on virological response 26/06/2006 Yes No
Results article results of pharmacokinetic sub-study 30/03/2007 Yes No
Results article results on interupted versus continous therapy 11/01/2008 Yes No
Results article results on demographics of poor adherence 01/08/2008 Yes No
Results article results on routine versus laboratory monitoring 09/01/2010 Yes No
Results article results of observational analysis 10/04/2010 Yes No
Other publications cost -effectiveness of routine versus laboratory monitoring 01/04/2012 Yes No
Results article results on pregnancy and infant outcomes 01/04/2012 Yes No
Results article secondary analysis results 02/10/2013 Yes No
Results article retrospective analysis results 13/03/2014 Yes No
Results article retrospective analysis results 21/02/2017 Yes No

Editorial Notes

27/02/2017: Publication reference added.