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Multiple Versus Single Dose of Ivermectin for the Treatment of Strongyloidiasis

Randomized, Open-label, Multi Centre Phase III Clinical Trial on Multiple Versus Single Dose of Ivermectin for the Treatment of Strongyloidiasis

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01570504
Acronym
STRONGTREAT
Enrollment
312
Registered
2012-04-04
Start date
2013-03-31
Completion date
2018-06-08
Last updated
2018-06-14

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

Conditions

Strongyloidiasis

Keywords

Strongyloidiasis, Strongyloides stercoralis, Ivermectin

Brief summary

Ivermectin is currently the best drug to cure strongyloidiasis, but the standard single dose of 200 mcg/kg is probably not enough to guarantee cure. As strongyloidiasis can be fatal in immunosuppressed patients, it is mandatory to define the optimal dosage to eradicate the parasite. Aim of this study is to define the most effective dose schedule of ivermectin to cure strongyloidiasis.

Interventions

DRUGIvermectin

oral formulation

Sponsors

European Commission
CollaboratorOTHER
Centro per le Malattie Tropicali
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male and female patients older than 5 years and weighting \> 15 kg * Current residence in non-endemic areas * Either direct diagnosis of S. stercoralis infection AND positive serology at any titer OR positive serology at high titer, irrespective of results of direct tests

Exclusion criteria

* Pregnant or lactating women * Subjects suffering from CNS diseases * Disseminated strongyloidiasis * Immunocompromised patients. * Lack of informed consent * Previous treatment with ivermectin (in the last year)

Design outcomes

Primary

MeasureTime frameDescription
clearance of strongyloides infection12 monthsClearance of infection is defined by: negative stool agar/charcoal culture/RT-PCR - direct examination of three faecal samples for S. stercoralis AND negative serology or decrease in titer below a defined cutoff

Secondary

MeasureTime frameDescription
Patients with partial response to treatment at T 212 months
Patients with adverse reactionsFrom Day 1st to Day 5th of treatment and from Day 15th to Day 19th (or 72 hours from treatment completion)grade 1 to 5 as defined in detailed protocol
Patients with increase in blood ALT over cutoff valueDay 17
All-cause mortality during the 12 months of follow-up.12 months
Average difference in blood ALT and WBC count at day 17, compared with baselineDay 17
Average difference in blood eosinophil count at T2, compared with baseline12 months
Patients with decrease in WBC count below cutoff valueDay 17

Countries

Italy, Spain, United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 1, 2026