ArticleClinical pharmacology and therapeutics2026
Bidirectional Interaction Between Liposomal Amphotericin B Pharmacokinetics and Parasite Dynamics in Patients With Post-Kala-Azar Dermal Leishmaniasis: Potential Implications for Optimal Dosing.
Article in Clinical pharmacology and therapeutics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Post-kala-azar dermal leishmaniasis (PKDL) involves a high macrophage burden in which the Leishmania parasites reside. Liposomal amphotericin B (LAmB) plays a key role in the treatment of PKDL. The mononuclear phagocyte system (MPS) is crucial in the distribution of liposomal drugs as well as the leishmaniasis pathophysiology. This study focused on characterizing the interaction between LAmB pharmacokinetics, the MPS, and parasite dynamics for optimal dosing of LAmB in PKDL. Clinical trial data from the Indian subcontinent, involving short-course LAmB administered alone or with miltefosine, were analyzed using nonlinear mixed-effects modeling. The pharmacokinetics of LAmB were best described by a two-compartment model with a saturable LAmB uptake by the MPS. The maximum MPS uptake capacity was modeled with a baseline component and an additional disease-related component relative to the parasite burden. As treatment progressed, MPS capacity decreased with declining parasite load, resulting in a median 54% increase in the systemic LAmB exposure (AUC
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