Limits...
Rapid CD4 decline after interruption of non-nucleoside reverse transcriptase inhibitor-based antiretroviral therapy in a resource-limited setting.

Sungkanuparph S, Kiertiburanakul S, Apisarnthanarak A, Malathum K, Watcharananan S, Sathapatayavongs B - AIDS Res Ther (2007)

Bottom Line: By Kaplan-Meier analysis, median time to resume ART was 5.5 (NNRTI) and 14.2 (PI) months (log rank test, p = 0.026).By Cox's regression analysis, NNRTI-based ART (HR 4.9; 95%CI, 1.5-16.3), nadir CD4 <100 cells/mm3 (HR 2.7; 95%CI 1.4-5.3) and baseline CD4 <500 cells/mm3 (HR 1.6; 95%CI, 1.2-3.1) were predictors for early ART resumption.TI of NNRTI-based ART leads to rapid CD4 decline and high probability of early ART resumption and should be avoided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. rasuy@mahidol.ac.th

ABSTRACT

Background: Non-nucleoside reverse transcriptase inhibitor (NNRTI) with stavudine and lamivudine is widely used as the first-line antiretroviral therapy (ART) in resource-limited settings. Lipodystrophy is common and options for switching ART regimen are limited; this situation can lead to patients' poor adherence and antiretroviral resistance. Treatment interruption (TI) in patients with high CD4 cell counts, lipodystrophy, and limited options may be an alternative in resource-limited settings. This study aimed to determine time to resume ART after TI and predictors for early resumption of ART in a resource-limited setting.

Methods: A prospective study was conducted in January 2005 to December 2006 and enrolled HIV-infected patients with HIV-1 RNA <50 copies/mL, CD4 > 350 cells/mm3, and willing to interrupt ART. CD4 cell count, HIV-1 RNA, lipid profile, and lipodystrophy were assessed at baseline and every 3 months. ART was resumed when CD4 declined to <250 cells/mm3 or developed HIV-related symptoms. Patients were grouped based on ART regimens [NNRTI or protease inhibitor (PI)] prior to TI.

Results: There were 99 patients, 85 in NNRTI group and 14 in PI group. Mean age was 40.6 years; 46% were males. Median duration of ART was 47 months. Median nadir CD4 and baseline CD4 were 151 and 535 cells/mm3, respectively. Median CD4 change at 3 months after TI were -259 (NNRTI) and -105 (PI) cells/mm3 (p = 0.038). At 13-month median follow-up, there was no AIDS-defining illness; 38% (NNRTI) and 29% (PI) of patients developed HIV-related symptoms. ART was resumed in 51% (NNRTI) and 36% (PI) of patients (p = 0.022). By Kaplan-Meier analysis, median time to resume ART was 5.5 (NNRTI) and 14.2 (PI) months (log rank test, p = 0.026). By Cox's regression analysis, NNRTI-based ART (HR 4.9; 95%CI, 1.5-16.3), nadir CD4 <100 cells/mm3 (HR 2.7; 95%CI 1.4-5.3) and baseline CD4 <500 cells/mm3 (HR 1.6; 95%CI, 1.2-3.1) were predictors for early ART resumption.

Conclusion: TI of NNRTI-based ART leads to rapid CD4 decline and high probability of early ART resumption and should be avoided. It is necessary to scale-up the options for HIV-infected patients with lipodystrophy in resource-limited settings.

No MeSH data available.


Related in: MedlinePlus

Kaplan-Meier analysis for the probability of free from ART resumption.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC2211500&req=5

Figure 2: Kaplan-Meier analysis for the probability of free from ART resumption.

Mentions: By Kaplan-Meier analysis, median time to resume ART was 5.6 months in NNRTI group and 15.0 months in PI group (log rank test, p = 0.026, Figure 2). By Cox's regression, NNRTI-based ART [hazard ratio (HR) 4.9; 95% confidence interval (CI), 1.5–16.3], nadir CD4 <100 cells/mm3 [HR 2.7; 95%CI 1.4–5.3] and baseline CD4 <500 cells/mm3 [HR 1.6; 95%CI 1.2–3.1] were predictors for early ART resumption. Duration of ART was not associated with early ART assumption.


Rapid CD4 decline after interruption of non-nucleoside reverse transcriptase inhibitor-based antiretroviral therapy in a resource-limited setting.

Sungkanuparph S, Kiertiburanakul S, Apisarnthanarak A, Malathum K, Watcharananan S, Sathapatayavongs B - AIDS Res Ther (2007)

Kaplan-Meier analysis for the probability of free from ART resumption.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2211500&req=5

Figure 2: Kaplan-Meier analysis for the probability of free from ART resumption.
Mentions: By Kaplan-Meier analysis, median time to resume ART was 5.6 months in NNRTI group and 15.0 months in PI group (log rank test, p = 0.026, Figure 2). By Cox's regression, NNRTI-based ART [hazard ratio (HR) 4.9; 95% confidence interval (CI), 1.5–16.3], nadir CD4 <100 cells/mm3 [HR 2.7; 95%CI 1.4–5.3] and baseline CD4 <500 cells/mm3 [HR 1.6; 95%CI 1.2–3.1] were predictors for early ART resumption. Duration of ART was not associated with early ART assumption.

Bottom Line: By Kaplan-Meier analysis, median time to resume ART was 5.5 (NNRTI) and 14.2 (PI) months (log rank test, p = 0.026).By Cox's regression analysis, NNRTI-based ART (HR 4.9; 95%CI, 1.5-16.3), nadir CD4 <100 cells/mm3 (HR 2.7; 95%CI 1.4-5.3) and baseline CD4 <500 cells/mm3 (HR 1.6; 95%CI, 1.2-3.1) were predictors for early ART resumption.TI of NNRTI-based ART leads to rapid CD4 decline and high probability of early ART resumption and should be avoided.

View Article: PubMed Central - HTML - PubMed

Affiliation: Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand. rasuy@mahidol.ac.th

ABSTRACT

Background: Non-nucleoside reverse transcriptase inhibitor (NNRTI) with stavudine and lamivudine is widely used as the first-line antiretroviral therapy (ART) in resource-limited settings. Lipodystrophy is common and options for switching ART regimen are limited; this situation can lead to patients' poor adherence and antiretroviral resistance. Treatment interruption (TI) in patients with high CD4 cell counts, lipodystrophy, and limited options may be an alternative in resource-limited settings. This study aimed to determine time to resume ART after TI and predictors for early resumption of ART in a resource-limited setting.

Methods: A prospective study was conducted in January 2005 to December 2006 and enrolled HIV-infected patients with HIV-1 RNA <50 copies/mL, CD4 > 350 cells/mm3, and willing to interrupt ART. CD4 cell count, HIV-1 RNA, lipid profile, and lipodystrophy were assessed at baseline and every 3 months. ART was resumed when CD4 declined to <250 cells/mm3 or developed HIV-related symptoms. Patients were grouped based on ART regimens [NNRTI or protease inhibitor (PI)] prior to TI.

Results: There were 99 patients, 85 in NNRTI group and 14 in PI group. Mean age was 40.6 years; 46% were males. Median duration of ART was 47 months. Median nadir CD4 and baseline CD4 were 151 and 535 cells/mm3, respectively. Median CD4 change at 3 months after TI were -259 (NNRTI) and -105 (PI) cells/mm3 (p = 0.038). At 13-month median follow-up, there was no AIDS-defining illness; 38% (NNRTI) and 29% (PI) of patients developed HIV-related symptoms. ART was resumed in 51% (NNRTI) and 36% (PI) of patients (p = 0.022). By Kaplan-Meier analysis, median time to resume ART was 5.5 (NNRTI) and 14.2 (PI) months (log rank test, p = 0.026). By Cox's regression analysis, NNRTI-based ART (HR 4.9; 95%CI, 1.5-16.3), nadir CD4 <100 cells/mm3 (HR 2.7; 95%CI 1.4-5.3) and baseline CD4 <500 cells/mm3 (HR 1.6; 95%CI, 1.2-3.1) were predictors for early ART resumption.

Conclusion: TI of NNRTI-based ART leads to rapid CD4 decline and high probability of early ART resumption and should be avoided. It is necessary to scale-up the options for HIV-infected patients with lipodystrophy in resource-limited settings.

No MeSH data available.


Related in: MedlinePlus