CClinicalTrials.gg
CompletedNCT04205669Updated Nov 13, 2020Results posted

Comparing the Effectiveness of Individual vs. Household Treatment for Scabies in Lambaréné, Gabon

A Phase 4 interventional study of Benzyl Benzoate 25% Topical Application Lotion in Scabies and Households, sponsored by Centre de Recherche Médicale de Lambaréné. Completed at 1 site in Gabon. Per ClinicalTrials.gov, last updated 2020-11-13.

Sponsored by Centre de Recherche Médicale de Lambaréné · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
104
Allocation
Randomized
Sex
All
01

Study summary

It is unclear whether individual treatment of scabies is similarly effective compared to household treatment. This study therefore compares these two treatment strategies with topical benzyl benzoate for treating scabies in Lambaréné and surroundings in Gabon.

Subjects presenting with uncomplicated scabies are randomized into either the Individual Treatment group, where only the affected subjects receive treatment, or the Household Treatment group, where all family members are treated in parallel to the affected subjects regardless of signs and symptoms. The primary endpoint is clinical cure after 28 days; the secondary endpoint is the proportion of affected household members per household after 28 days.

02

Conditions studied

  • Scabies
  • Households

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03

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • diagnosed with active, uncomplicated scabies
  • no known hypersensitivity or allergy against benzyl benzoate

Exclusion criteria

Exclusion Criteria:

  • hypersensitivity or allergy against benzyl benzoate
  • severe superinfection of scabies lesions
04

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
104 participants (actual)

Study arms

  • Active comparator
    Individual Treatment

    Drug: Benzyl Benzoate 25% Topical Application Lotion

  • Active comparator
    Household Treatment

    Drug: Benzyl Benzoate 25% Topical Application Lotion

Interventions

  • DrugBenzyl Benzoate 25% Topical Application Lotion

    Applied to skin for the treatment of scabies

05

What researchers measure

Primary outcomes

  1. Number of Participants With Clinical Cure

    clinical improvement in skin lesions with no new lesions occurring since treatment application as assessed by skin examination

    Time frame: after 28 days from baseline

Secondary outcomes

  1. Proportion of Affected Household Members Per Household

    proportion of scabies cases per household after 4 weeks

    Time frame: after 28 days from baseline

06

Results

Posted Nov 13, 2020

Participant flow

Participant flow — Overall Study
MilestoneIndividual TreatmentHousehold Treatment
Started4757
Completed3445
Not completed1312

Outcome measures

PrimaryNumber of Participants With Clinical Cure

clinical improvement in skin lesions with no new lesions occurring since treatment application as assessed by skin examination

Time frame:
after 28 days from baseline
Reported as:
Count of participants · Participants
Number of Participants With Clinical Cure
ParticipantsIndividual TreatmentHousehold Treatment
Number of Participants With Clinical Cure2033
SecondaryProportion of Affected Household Members Per Household

proportion of scabies cases per household after 4 weeks

Time frame:
after 28 days from baseline

Results for this outcome have not been posted.

Adverse events

Collected over over the study follow up period, an average of 4 weeks. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Individual Treatment0/47 (0%)0/47 (0%)0/47 (0%)
Household Treatment0/57 (0%)0/57 (0%)0/57 (0%)

Baseline characteristics

Age, Customized
Age, Customized(Participants)Individual TreatmentHousehold TreatmentTotal
<12 years293665
>=12 years182139
Sex: Female, Male
Sex: Female, Male(Participants)Individual TreatmentHousehold TreatmentTotal
Female223052
Male252752
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Individual TreatmentHousehold TreatmentTotal
Count of participants——0
Scabies severity
Scabies severity(Participants)Individual TreatmentHousehold TreatmentTotal
Mild6511
Moderate193150
Severe222143
Malaria rapid diagnostic test status
Malaria rapid diagnostic test status(Participants)Individual TreatmentHousehold TreatmentTotal
Positive221638
Negative254166
07

Study locations

1 site
  • Centre de Recherches Médicales de Lambaréné
    Lambaréné, BP 242, Gabon
08

References and documents

Publications

  • Matthewman J, Manego RZ, Dimessa Mbadinga LB, Sinkovec H, Volker K, Akinosho M, Haedrich C, Tardif d'Hamonville J, Lell B, Adegnika AA, Ramharter M, Mombo-Ngoma G. A randomized controlled trial comparing the effectiveness of individual versus household treatment for Scabies in Lambarene, Gabon. PLoS Negl Trop Dis. 2020 Jun 26;14(6):e0008423. doi: 10.1371/journal.pntd.0008423. eCollection 2020 Jun. PubMed 32589632 ↗

Study documents

  • Protocol and statistical analysis plan · Aug 31, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — IPD with identifying data removed uploaded to public repository under https://www.kaggle.com/julianmatthewman/grattigratta-data

09

Registry details

Key details

Study ID
NCT04205669
Lead sponsor
Centre de Recherche Médicale de Lambaréné
Collaborators
Bernhard Nocht Institute for Tropical Medicine, University Hospital Tuebingen, Medical University of Vienna
Responsible party
Julian Matthewman (Principal Investigator, Centre de Recherche Médicale de Lambaréné) — Principal investigator
First posted
Dec 19, 2019
Start date
Oct 4, 2018
Primary completion
Feb 21, 2019
Completion
Feb 21, 2019
Results posted
Nov 13, 2020
Last update
Nov 13, 2020

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2020. You cannot join it, but the record below documents what was studied.

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