Excellent clinical outcomes and retention in care for adults with HIV‐associated Kaposi sarcoma treated with systemic chemotherapy and integrated antiretroviral …

ME Herce, N Kalanga, EB Wroe… - Journal of the …, 2015 - Wiley Online Library
ME Herce, N Kalanga, EB Wroe, JW Keck, F Chingoli, L Tengatenga, S Gopal, A Phiri
Journal of the International AIDS Society, 2015Wiley Online Library
Introduction HIV‐associated Kaposi sarcoma (HIV‐KS) is the most common cancer in
Malawi. In 2008, the non‐governmental organization, Partners In Health, and the Ministry of
Health established the Neno Kaposi Sarcoma Clinic (NKSC) to treat HIV‐KS in rural Neno
district. We aimed to evaluate 12‐month clinical outcomes and retention in care for HIV‐KS
patients in the NKSC, and to describe our implementation model, which featured protocol‐
guided chemotherapy, integrated antiretroviral therapy (ART) and psychosocial support …
Introduction
HIV‐associated Kaposi sarcoma (HIV‐KS) is the most common cancer in Malawi. In 2008, the non‐governmental organization, Partners In Health, and the Ministry of Health established the Neno Kaposi Sarcoma Clinic (NKSC) to treat HIV‐KS in rural Neno district. We aimed to evaluate 12‐month clinical outcomes and retention in care for HIV‐KS patients in the NKSC, and to describe our implementation model, which featured protocol‐guided chemotherapy, integrated antiretroviral therapy (ART) and psychosocial support delivered by community health workers.
Methods
We conducted a retrospective cohort study using routine clinical data from 114 adult HIV‐KS patients who received ART and ≥1 chemotherapy cycle in the NKSC between March 2008 and February 2012.
Results
At enrolment 97% of patients (n/N=103/106) had advanced HIV‐KS (stage T1). Most patients were male (n/N=85/114, 75%) with median age 36 years (interquartile range, IQR: 29–42). Patients started ART a median of 77 days prior to chemotherapy (IQR: 36–252), with 97% (n/N=105/108) receiving nevirapine/lamivudine/stavudine. Following standardized protocols, we treated 20 patients (18%) with first‐line paclitaxel and 94 patients (82%) with bleomycin plus vincristine (BV). Of the 94 BV patients, 24 (26%) failed to respond to BV requiring change to second‐line paclitaxel. A Division of AIDS grade 3/4 adverse event occurred in 29% of patients (n/N=30/102). Neutropenia was the most common grade 3/4 event (n/N=17/102, 17%). Twelve months after chemotherapy initiation, 83% of patients (95% CI: 74–89%) were alive, including 88 (77%) retained in care. Overall survival (OS) at 12 months did not differ by initial chemotherapy regimen (p=0.6). Among patients with T1 disease, low body mass index (BMI) (adjusted hazard ratio, aHR=4.10, 95% CI: 1.06–15.89) and 1 g/dL decrease in baseline haemoglobin (aHR=1.52, 95% CI: 1.03–2.25) were associated with increased death or loss to follow‐up at 12 months.
Conclusions
The NKSC model resulted in infrequent adverse events, low loss to follow‐up and excellent OS. Our results suggest it is safe, effective and feasible to provide standard‐of‐care chemotherapy regimens from the developed world, integrated with ART, to treat HIV‐KS in rural Malawi. Baseline BMI and haemoglobin may represent important patient characteristics associated with HIV‐KS survival in rural sub‐Saharan Africa.
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