Wellcome open research · 2024
Metformin as adjunctive therapy in combination with multidrug treatment for multibacillary leprosy: A protocol for a randomized double-blind, controlled Phase 2 trial in Indonesia (MetLep Trial).
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Krismawati Hana, Muchtar Sri V, Rahardjani Mutia, Utami Nindya N, Oktaviani Margareta, Puspatriani Khairunnisa, Syamsiah, Imbiri Nelly, Hasvitasari Dian E, Fajrianti Dwi R, Tarino Nico, Wulandari Fitri, Kestelyn Evelyne, Du Duc H, van Crevel Reinout, Walker Stephen L, Geskus Ronald B, Geluk Annemieke, Hamers Raph L, Soebono Hardyanto, Grijsen Marlous L
Аннотация
BACKGROUND: The clinical management of leprosy is complicated by leprosy reactions (LR) causing irreversible nerve damage and disabilities. LR often require long-term use of corticosteroids causing serious side effects. Adjunct host-directed therapy (HDT) is a potentially attractive strategy in leprosy to prevent LR and associated immunopathology, modulate immunological memory that protects against recurrence, and thereby reduce nerve damage, disability and corticosteroid-associated morbidities. Metformin, a well-tolerated, safe and cheap anti-hyperglycaemic drug, is repurposed as HDT in auto-immune and infectious diseases, like tuberculosis (TB). Metformin use in people with diabetes is associated with reduced risks of TB-infection, progression to active TB, treatment failure and TB-mortality. Given the similarities both mycobacteria share, we hypothesize that among persons with multibacillary (MB) leprosy, adjunctive metformin may prevent/mitigate LR.
METHODS: We will perform a double-blind controlled proof-of-concept trial in which people with newly diagnosed multibacillary leprosy will be randomized (1:1) to metformin hydrochloride 1000mg extended release once daily versus placebo for 24 weeks in addition to standard-of-care WHO MB multidrug therapy (MDT) during 48 weeks. We aim to enrol 166 participants aged between 18 and 65 years, across five clinical sites in two leprosy endemic areas in Indonesia. Primary outcomes are the proportion of participants experiencing a LR and the frequency of (serious) adverse events. Secondary outcomes are the severity and time to first LR, the cumulative corticosteroid usage, and quality of life. The total study follow-up is 48 weeks.
DISCUSSION: LR signify the most important cause of irreversible nerve damage leading to anatomical deformities and disabilities, imposing a social and financial burden on those affected. Our study aims to evaluate the efficacy, tolerability and safety of adjunct metformin added to MDT in persons with multibacillary leprosy, and explore its effects on clinical and immunological outcomes.
CLINICALTRIALSGOV REGISTRATION: NCT05243654 (17/02/2022).
METHODS: We will perform a double-blind controlled proof-of-concept trial in which people with newly diagnosed multibacillary leprosy will be randomized (1:1) to metformin hydrochloride 1000mg extended release once daily versus placebo for 24 weeks in addition to standard-of-care WHO MB multidrug therapy (MDT) during 48 weeks. We aim to enrol 166 participants aged between 18 and 65 years, across five clinical sites in two leprosy endemic areas in Indonesia. Primary outcomes are the proportion of participants experiencing a LR and the frequency of (serious) adverse events. Secondary outcomes are the severity and time to first LR, the cumulative corticosteroid usage, and quality of life. The total study follow-up is 48 weeks.
DISCUSSION: LR signify the most important cause of irreversible nerve damage leading to anatomical deformities and disabilities, imposing a social and financial burden on those affected. Our study aims to evaluate the efficacy, tolerability and safety of adjunct metformin added to MDT in persons with multibacillary leprosy, and explore its effects on clinical and immunological outcomes.
CLINICALTRIALSGOV REGISTRATION: NCT05243654 (17/02/2022).