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Oral Combinational Antiretroviral Treatment in HIV-1 Infected Humanized Mice
Published on: October 6, 2022
Long-term consequences of treatment interruptions in chronically HIV-1-infected patients
E Wolf1, C Hoffmann, M Procaccianti
1MUC Research, Munich, Germany. eva.wolf@mucresearch.de
Insights
Antiretroviral treatment (ART) interruptions in HIV-1 patients led to immunological disadvantages but did not increase disease progression risk over two years. Metabolic markers improved during treatment interruptions.
Area of Science:
- Immunology
- Virology
- Metabolic Medicine
Background:
- Antiretroviral treatment (ART) is crucial for managing chronic HIV-1 infection.
- Understanding the long-term consequences of ART interruptions is essential for patient management.
Purpose of the Study:
- To assess the long-term impact of antiretroviral treatment (ART) interruptions on metabolic, immunological, virological, and clinical outcomes in patients with chronic HIV-1 infection.
Main Methods:
- A 24-month, multi-center, prospective, controlled cohort study.
- Involved HIV-1 infected patients who interrupted ART one or more times for at least two weeks.
- Compared to a frequency-matched control group on continuous ART.
Main Results:
- 133 patients with treatment interruptions (TI) and 266 controls were analyzed.
- TI patients showed no significant CD4 cell count increase at 24 months, unlike controls.
- Two-year AIDS-free survival was similar; liver enzymes and blood lipids improved during TI.
Conclusions:
- Treatment interruptions (TI) resulted in a significant immunological disadvantage at 24 months compared to continuous ART.
- In this immunocompetent cohort, TI did not elevate the risk of disease progression within two years.
Objective:
To evaluate the long-term effects of antiretroviral treatment (ART) interruptions on metabolic, immunological, virological and clinical outcomes in chronically HIV-1 infected patients.
Methods:
Multi-centric, prospective, controlled 24-month cohort study in HIV-1 infected patients interrupting ART once or several times and for at least two weeks. Patients were compared to a frequency-matched control group continuing on ART.
Results:
A total of 399 HIV-1 infected patients were included, among them 133 patients with treatment interruption (TI) and 266 control patients. Baseline characteristics were well matched. Median baseline CD4 cell count was 379/microl in TI-patients and 410/microl in control patients (p = ns). Median duration of the first TI was 1.1 months, and 37 % of patients had two or further TI's. Whereas CD4 cell count in control patients had increased significantly by a median of 67/microl at month 24 (p<0.0001), median CD4 cell count at month 24 in the TI-patients did not differ significantly from baseline. However, two-year AIDS-free survival was not significantly different between TI- and control patients. Liver enzymes and blood lipids improved significantly during TI.
Conclusion:
TI was associated with a significant immunological disadvantage at 24-month follow-up compared to continued ART. In this relatively immunocompetent cohort, however, TI's did not lead to an increased risk of disease progression within two years of follow-up.
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