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Better Options for Lymphatic Filariasis Treatment

Safety and Efficacy Trial of Mass Drug Administration With Moxidectin Versus Ivermectin in Combination With Diethylcarbamazine and Albendazole for Lymphatic Filariasis, Scabies, and Strongyloidiasis in Fiji

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07159373
Acronym
BOLT
Enrollment
5100
Registered
2025-09-08
Start date
2026-03-31
Completion date
2028-06-30
Last updated
2025-09-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lymphatic Filariasis, Scabies, Strongyloidiasis

Keywords

Moxidectin, Ivermectin, Mass drug administration, Lymphatic filariasis, Scabies, Strongyloidiasis, Cluster-randomized, Diethylcarbamazine, Albendazole

Brief summary

The goal of this clinical trial is to learn if mass drug administration with moxidectin in combination with diethylcarbamazine, and albendazole (MoxDA) can treat lymphatic filariasis, scabies and strongyloidiasis in children and adults living in communities where these diseases are common. The main questions it aims to answer are: 1. Does MoxDA clear infection in people with lymphatic filariasis ? 2. Does MoxDA cause any medical problems in infected and uninfected people? Researchers will compare MoxDA with ivermectin given together with diethylcarbamazine and albendazole (IDA) to see if it works better to clear infection and does not cause any more medical problems. Participants will: 1. Be tested to see if they are infected with the parasites that cause lymphatic filariasis, scabies and strongyloidiasis 2. Take 3 single doses of MoxDA or IDA, 12 months apart 3. Visit their village centre once or twice in the 1 week after each treatment for safety checkups

Interventions

DRUGMoxDA - Moxidectin + Diethylcarbamzine (DEC) + Albendazole

Mass drug administration with moxidectin co-administered with DEC and albendazole (MoxDA). Participants who are ineligible to receive moxidectin will be offered modified treatment options: 1. Children aged ≥ 2 years but \< 4 years - DEC, albendazole, and permethrin 5% cream 2. Participants who have a severe illness, a known or suspected allergy to ivermectin, moxidectin, DEC or albendazole, are pregnant or breastfeeding a baby up to 7 days of age, or are under 2 years of age - permethrin 5% cream (unless allergic)

DRUGIDA - Ivermectin + DEC + albendazole

Mass drug administration with ivermectin co-administered with DEC and albendazole (IDA). Participants who are ineligible to receive moxidectin will be offered modified treatment options: 1. Children aged \< 2 years or weight \< 15 kg - DEC, albendazole, and permethrin 5% cream 2. Participants who have a severe illness, a known or suspected allergy to ivermectin, moxidectin, DEC or albendazole, are pregnant or breastfeeding a baby up to 7 days of age, or are under 2 years of age - permethrin 5% cream (unless allergic)

Sponsors

Murdoch Childrens Research Institute
CollaboratorOTHER
Kirby Institute
CollaboratorOTHER_GOV
Medicines Development for Global Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Open label trial of mass drug administration with two treatment arms cluster-randomized 1:1 by village and stratified by island.

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

1. Provision of signed and dated informed consent. 2. Resident in one of the study locations.

Exclusion criteria

There are no

Design outcomes

Primary

MeasureTime frameDescription
Proportion of microfilariae (Mf)-positive participants at Baseline who are Mf-negative at Month 12 following treatment with MoxDA or IDA12 months post-treatmentLymphatic filariasis (LF) Mf measured by ultrafiltration
Incidence and severity of adverse events7 days, 12 months and 24 months post-treatmentFrequency, type, and severity of adverse events reported by treatment group

Secondary

MeasureTime frameDescription
Mean Mf density and mean change from Baseline at Months 12 and 24 following treatment with MoxDA or IDA in participants who are Mf-positive at Baseline12 and 24 months post-treatmentLF Mf measured using ultrafiltration
Proportion of participants who are circulating filarial antigen (CFA)-positive at baseline who become CFA-negative at Months 12 and/or 24 following treatment with MoxDA or IDA12 and 24 months post-treatmentCFA measured using rapid lateral flow assay
Change in community prevalence of LF, as measured by Mf, at Months 12 and 24 following annual MDA with MoxDA or IDA, in addition to directed treatment of individuals who are Mf positive at 3-monthly assessments between Months 12 and 2412 and 24 months post-treatmentLF Mf measured using ultrafiltration
Change in community prevalence of LF, as measured by CFA, at Months 12 and 24 following annual MDA with MoxDA or IDA, in addition to directed treatment of individuals who are Mf positive at 3-monthl12 and 24 months post-treatmentCFA measured using rapid lateral flow assay
Change in community seroprevalence of S. stercoralis at Months 12 and 24 following annual MDA with MoxDA or IDA, in addition to directed treatment of individuals who are Mf positive at 3-monthly assessments between Months 12 and 2412 and 24 months post-treatment
Time to first detection of Mf in participants with presence of Mf between Month 12 and Month 24 among those who were Mf positive at Month 12 following treatment with MoxDA or IDA12 to 24 months post-treatmentLf Mf measured using ultrafiltration
Community acceptability of MDA with MoxDA or IDA assessed by surveys, focus group discussions, and/or key informant interviews before Baseline and approximately 2 months following MDA at Baseline and Month 12Pre- and post-treatment at Baseline and post-treatment at Month 12
Change in community prevalence of scabies and impetigo at Months 12 and 24 following annual community MDA with MoxDA or IDA, in addition to directed treatment of individuals who are Mf positive at 3-monthly assessment between Months 12 and 2412 and 24 months post-treatmentScabies and impetigo measured using modified International Alliance for the Control of Scabies (IACS) criteria based on examination of normally exposed skin
Change in community prevalence of LF, as measured by Mf and CFA, at Months 12 and 24 following annual MDA with MoxDA or IDA, in addition to directed treatment of individuals who are Mf positive at 3-monthly assessments between Months 12 and 2412 and 24 months post-treatmentLF Mf measured using ultrafiltration and CFA measured using rapid lateral flow assay
Proportion of participants with presence of Mf between Month 12 and Month 24 among those who were Mf positive at Month 12 following treatment with MoxDA or IDA12 to 24 months post-treatmentLF Mf measured using ultrafiltration
Proportion of Mf-positive participants at Baseline who are Mf-negative at Month 24 following treatment with MoxDA or IDA24 months post-treatmentLF Mf measured using ultrafiltration

Countries

Fiji

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026