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A Pilot Dose Ranging Study of Spinosad Creme Rinse

Efficacy and Safety of Different Strengths of Spinosad Topical Creme (0%, 0.5%, 1.0% or 2%) in Subjects With Pediculosis Capitis - a Dose Ranging Study

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00858481
Enrollment
36
Registered
2009-03-09
Start date
2005-09-30
Completion date
2005-11-30
Last updated
2015-10-20

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

Conditions

Head Lice, Pediculosis Capitis

Keywords

Pediculosis capitis, Head Lice

Brief summary

A pilot dose ranging study to evaluate the safety and efficacy of different strengths of Spinosad Creme versus a vehicle control.

Detailed description

A Phase 2a, randomized, single investigational site, investigator/evaluator-blind, four-arm, parallel-group, vehicle-controlled, pilot study to evaluate the safety and efficacy of different strengths of Spinosad Creme rinse verses vehicle control.

Interventions

DRUGSpinosad Creme Rinse - Vehicle Control

One or two, 10-minute topical applications (7 days apart)

0.5% Spinosad Creme Rinse: one or two, 10-minute topical applications (7 days apart)

Sponsors

ParaPRO LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
2 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Active head lice infestation * Male or female, 2 years of age or older * Good general health * Appropriately signed Informed Consent * Subject agreement to not use any other form of lice treatment during the course of the study * Subject agreement to not cut or chemically treat their hair between visits

Exclusion criteria

* History of irritation or sensitivity to pediculicides or hair care products * Individuals with any visible skin/scalp condition that would interfere with the evaluation * Individuals previously treated with a pediculicide within 4 weeks prior to study enrollment * Individuals using hair dyes, bleaches, permanent waves or relaxing solutions 2 weeks prior to study enrollment * Individuals who have participated in any clinical trial within 30 days of enrollment * Individuals with family members who were infested with lice but were unwilling or unable to enroll in the study or use a standard course of lice treatment * Females who were pregnant or nursing * Sexually active females not using effective contraception

Design outcomes

Primary

MeasureTime frame
Efficacy of various doses of Spinosad, based on the presence or absence of live lice at 7 and 14 days post-treatment. The efficacy evaluation was performed by a trained evaluator.14 days

Secondary

MeasureTime frame
Safety of various doses of Spinosad, based on the occurrence of adverse events, especially scalp irritation.14 days

Countries

United States

Outcome results

None listed

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