Ivermectin Therapy for Scabies Infection in Children Younger Than 5 Years of Age (ITCHY Study)

NCT ID: NCT05500326

Last Updated: 2025-07-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-06-24

Study Completion Date

2026-06-30

Brief Summary

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This is an open label prospective pharmacokinetic single arm study in Laos PDR. This study will be embedded within a cluster-randomized controlled trial of interventions to address childhood undernutrition (SUANHOAM Trial, ACTRN12620000520932) and involves a collaboration with the Murdoch Children's Research Institute, Burnet institute and Lao Tropical and Public Health Institute.

ITCHY Study:

The primary objective is to determine in young children aged 2 to \<5 years and weighing 10 to \<15 kg if an ivermectin dose of 3 mg achieves comparable drug exposures to the recommended dose in older children. It aims to provide reliable evidence for a safe and effective dose of ivermectin in young children who are especially vulnerable to scabies infections and the associated secondary complications.

ITCHY2 Study:

An embedded phase 2 multicentre, open label prospective pharmacokinetic study in Laos PDR of ITCHY Study. The primary objective is to determine the plasma ivermectin drug exposure in children aged 3 months to 2 years and weighing ≥2 kg receiving an age specific ivermectin dose.

Detailed Description

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ITCHY study:

100 children aged 2 to \<5years and weighing 10 to \<15 kg with clinically diagnosed scabies infection in the participating sites in Laos PDR will be approached for recruitment into the study if eligible (see eligibility criteria) and allocated into one of four blood sampling groups with 25 participants in each group. The 3mg dose of ivermectin will be administered orally and blood samples will be collected at two different time points accordingly to blood sampling groups allocation after the first 3mg dose of ivermectin. Clinical responses will be assessed on day 14. A second dose of ivermectin to complete the treatment will only be administered if the first dose has been tolerated by the participants. The 3mg ivermectin drug exposure, safety and effectiveness will be measured.

ITCHY2 Study:

120 children aged 3 months to 2 years and weighing ≥2 kg with clinically diagnosed scabies infection in the participating sites in Laos PDR will be approached for recruitment into the study if eligible (see eligibility criteria) and allocated into one of four blood sampling groups with 30 participants in each group. An age specific dose of ivermectin will be administered orally and blood samples will be collected at two different time points accordingly to blood sampling groups allocation after the first dose of ivermectin.

Age specific ivermectin dose:

* 0.75mg of ivermectin will be given to participants aged 3 to 7 months
* 1.5mg of ivermectin will be given to participants aged 8 to 12 months
* 3mg of ivermectin will be given to participants aged 13 to 24 months

Clinical responses of the participants will be assessed on day 14. A second age specific dose of ivermectin to complete the treatment will only be administered if the first dose has been tolerated by the participants. The ivermectin plasma drug exposure, safety and effectiveness will be measured.

Conditions

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Scabies; Itch Scabies

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Intervention

ITCHY Study:

All participants will receive one dose of oral 3mg Ivermectin tablet.

ITCHY2 study:

Participants will receive one age-specific dose of oral ivermectin tablet.

Age specific ivermectin dose:

* 0.75mg of ivermectin will be given to participants aged 3 to 7 months
* 1.5mg of ivermectin will be given to participants aged 8 to 12 months
* 3mg of ivermectin will be given to participants aged 13 to 24 months

Group Type EXPERIMENTAL

Ivermectin Tablets

Intervention Type DRUG

ITCHY Study:

All participants will receive one dose of oral ivermectin 3mg on day 0 and have two blood samples taken to determine the serum ivermectin concentrations after the dose. Timing of blood samples will vary depending on the allocated group.

ITCHY2 Study:

Participants will receive one age-specific dose of oral ivermectin on day 0 and have two blood samples taken to determine the serum ivermectin concentrations after the dose. Timing of blood samples will vary depending on the allocated group.

Age specific ivermectin dose:

* 0.75mg of ivermectin will be given to participants aged 3 to 7 months
* 1.5mg of ivermectin will be given to participants aged 8 to 12 months
* 3mg of ivermectin will be given to participants aged 13 to 24 months

Interventions

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Ivermectin Tablets

ITCHY Study:

All participants will receive one dose of oral ivermectin 3mg on day 0 and have two blood samples taken to determine the serum ivermectin concentrations after the dose. Timing of blood samples will vary depending on the allocated group.

ITCHY2 Study:

Participants will receive one age-specific dose of oral ivermectin on day 0 and have two blood samples taken to determine the serum ivermectin concentrations after the dose. Timing of blood samples will vary depending on the allocated group.

Age specific ivermectin dose:

* 0.75mg of ivermectin will be given to participants aged 3 to 7 months
* 1.5mg of ivermectin will be given to participants aged 8 to 12 months
* 3mg of ivermectin will be given to participants aged 13 to 24 months

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

ITCHY study:

Children aged 2 to \<5 years and weighing 10 to \<15 kg with scabies infection as clinically diagnosed by the treating clinician.

ITCHY2 study:

Children aged 3 months to 2 years and weighing ≥2 kg with scabies infection as clinically diagnosed by the treating clinician.

Exclusion Criteria

ITCHY and ITCHY2 study:

* Children with known liver disease
* Children with known allergy to ivermectin
* Children with concomitant warfarin use
* Children with known neurological disease
* Children already receiving topical treatment for scabies
Minimum Eligible Age

3 Months

Maximum Eligible Age

5 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Burnet Institute

OTHER

Sponsor Role collaborator

Lao Tropical and Public Health Institute

OTHER_GOV

Sponsor Role collaborator

Murdoch Childrens Research Institute

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Amanda Gwee, PhD

Role: PRINCIPAL_INVESTIGATOR

Murdoch Childrens Research Institute (MCRI)

Locations

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Banchieng Health Centre

Kasy District, Vientiane Province, Laos

Site Status RECRUITING

Hinngoon Health Centre

Kasy District, Vientiane Province, Laos

Site Status RECRUITING

Kasy District Hospital

Kasy District, Vientiane Province, Laos

Site Status RECRUITING

Poonglack Health Centre

Kasy District, Vientiane, Laos

Site Status RECRUITING

ThongMeud Health Centre

Kasy District, Vientiane, Laos

Site Status RECRUITING

Countries

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Laos

Central Contacts

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Amanda Gwee, PhD

Role: CONTACT

+61393455522

Alice Lei, M.Sc

Role: CONTACT

+61433903448

Facility Contacts

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Montha

Role: primary

2056620986

Lanoy

Role: primary

2091024139

Pandaeng

Role: backup

2055447365

Kieme

Role: primary

2052631643

Montha

Role: backup

2076606700

Seth

Role: primary

2059169512

Boounthone

Role: backup

2056946610

Koyphet

Role: primary

2095449544

References

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Gwee A, Steer A, Phongluxa K, Luangphaxay C, Senggnam K, Philavanh A, Lei A, Martinez A, Huang S, McWhinney B, Ungerer J, Duffull S, Yang W, Zhu X, Coghlan B. Ivermectin therapy for young children with scabies infection: a multicentre phase 2 non-randomized trial. Lancet Reg Health West Pac. 2024 Jul 13;49:101144. doi: 10.1016/j.lanwpc.2024.101144. eCollection 2024 Aug.

Reference Type DERIVED
PMID: 39109221 (View on PubMed)

Other Identifiers

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84086

Identifier Type: -

Identifier Source: org_study_id

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