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CompletedNCT00314626Updated Jan 29, 2008

Antiretroviral Treatment Simplification Study With Efavirenz + Abacavir + 3TC Once Daily

A Phase 3 interventional study of efavirenz and Abacavir+lamivudine in HIV Infections, sponsored by Germans Trias i Pujol Hospital. Completed at 16 sites in Spain. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2008-01-29.

Sponsored by Germans Trias i Pujol Hospital · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
99
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

To evaluate the proportion of patients with virological failure after 48 weeks of treatment with the combination of efavirenz 600 mg + lamivudine (3TC) 300 mg + abacavir 600 mg once daily as an antiretroviral simplification regimen.

Read the detailed description

Treatment simplification is a therapeutic strategy that allows patients with controlled viral replication to switch to an easier-to-take antiretroviral system to promote long-term adherence and thus maintain controlled viral load for longer, delaying the evolution of the HIV infection.

The combination of ABC+3TC+EFV is a potent and easy-to-take regimen (2 tablets once a day) that could be suitable for the simplification of antiretroviral treatment in patients with controlled viral load with a regimen that includes 2 NRTI taken twice daily.

02

Conditions studied

  • HIV Infections

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Keywords

  • Antiviral efficacy
  • Tolerability
  • Immunologic response
  • Virologic response
  • HIV
03

In context

HIV Infections

4,258 studies on the registry are indexed under HIV Infections; 240 are open to participants now.

This study's enrollment of 99 is above the median of 83 across 3,250 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

Germans Trias i Pujol Hospital is the lead sponsor of 87 studies on the registry; 11 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Age > 18 years.
  2. HIV-1 infected patients.
  3. Patients on HAART therapy including efavirenz and two NRTIs in a twice-daily regimen for 6 months at least.
  4. Patients with an undetectable HIV-1 viral load over the last 6 months (at least 2 determinations separated by 3 months).
  5. Subject able to follow the treatment period.
  6. Signature of the informed consent.
  7. Women may not be of fertile age (defined as at least one year from menopause or undergoing any surgical sterilisation technique), or must undertake to use a barrier contraceptive method during the study.

Exclusion criteria

Exclusion Criteria:

  1. Hepatic tests > 5 times above normality.
  2. Pregnancy or breastfeeding
  3. Presence of opportunistic infections and/or recent tumours (\< 6 months).
  4. Suspected or documented resistance to any of the investigational drugs.
  5. Known allergic hypersensitivity to any of the investigational drugs or any similar drug.
  6. Subjects with abusive consumption of alcohol or illegal drugs.
  7. Patients participating in another clinical trial.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
99 participants (actual)

Study arms

  • Experimental
    A

    abacavir 600 mg + lamivudine (3TC) 300 mg in 1 tablet + efavirenz 600 mg 1/24h

    Drug: efavirenz · Drug: Abacavir+lamivudine

  • No intervention
    B

    efavirenz + 2 NUCS

Interventions

  • Drugefavirenz

    Efavirenz

    Also known as: sustiva

  • DrugAbacavir+lamivudine

    Abacavir+lamivudine

    Also known as: Kivexa

06

What researchers measure

Primary outcomes

  1. Viral load of HIV-1 at each visit with regard to the baseline visit.

    Time frame: At 12, 24, 36 and 48 weeks

Secondary outcomes

  1. To evaluate immunological efficacy (changes in the CD4 and CD8 counts) of the combination studied over the follow-up period.

    Time frame: At 12, 24, 36 and 48 weeks

  2. To evaluate the tolerance and safety of the combination of abacavir+ lamivudine (in a single tablet) + efavirenz given once daily over 48-week treatment period.

    Time frame: At 12, 24, 36 and 48 weeks

  3. To evaluate treatment adherence (assessed by a self-reported questionnaire and with graduated satisfaction scales) and patient quality of life (assessed by means of the MOS-HIV questionnaire).

    Time frame: At 12, 24, 36 and 48 weeks

07

Study locations

16 sites
  • Germans Trias i Pujol Hospital
    Badalona, Barcelona 08916, Spain
  • Hospital de Mataró
    Mataro, Barcelona 08304, Spain
  • Hospital de Aranzazu
    San Sebastian, Guipuzcoa 20014, Spain
  • Hospital San Millan de Logroño
    Logroño, La Rioja 26001, Spain
  • Hospital Principe de Asturias
    Alcala de Henares, Madrid 28005, Spain
  • Hospital de Móstoles
    Mostoles, Madrid 28935, Spain
  • Hospital Costa del Sol
    Marbella, Málaga 29600, Spain
  • Hospital Universitario de Canarias
    La Laguna, Santa Cruz de Tenerife 38320, Spain
  • Hospital de la Vall d'Hebron
    Barcelona, 08035, Spain
  • Hospital Virgen de las Nieves
    Granada, 18014, Spain
  • Hospital Arnau de Vilanova de Lleida
    Lleida, 25198, Spain
  • Hospital Severo Ochoa Leganés
    Madrid, 28911, Spain
  • Hospital Cristal-Piñor
    Ourense, 32005, Spain
  • Hospital Santa María Nai
    Ourense, 32005, Spain
  • Hospital de Navarra
    Pamplona, 31008, Spain
  • Hospital General de Valencia
    Valencia, 46014, Spain
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 29, 2008, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00314626
Lead sponsor
Germans Trias i Pujol Hospital
Collaborators
Fundación FLS de Lucha Contra el Sida, las Enfermedades Infecciosas y la Promoción de la Salud y la Ciencia
First posted
Apr 14, 2006
Start date
Nov 2004
Primary completion
Feb 2007
Completion
Mar 2007
Last update
Jan 29, 2008

Study contacts

Bonaventura Clotet, MD, PhD
principal investigator · Lluita contra la Sida Foundation-HIV Unit

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2007. You cannot join it, but the record below documents what was studied.

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