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A Comparison of Three Medications for Head Lice: Finding the Safest and Most Effective Option.

Effectiveness and Safety of Spinosad 0.9 percent Topical Solution vs Permethrin 1 percent Topical Solution vs Ivermectin 0.5 percent Topical Lotion in the Treatment of Pediculosis humanus capitis (head lice) Infestation: A Prospective, Comparative, Three arm, Double blind, Randomized Controlled Study

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2025/10/095673
Enrollment
90
Registered
2025-10-07
Start date
Unknown
Completion date
Unknown
Last updated
2026-09-14

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

Conditions

Health Condition 1: B850- Pediculosis due to Pediculus humanus capitis

Interventions

Intervention1: Spinosad 0.9% solution (Arm A): Intervention Description: Spinosad 0.9% Topical Solution is a prescription medication used for the treatment of head lice infestation. It contains Spinos

Sponsors

NIL
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Subjects must have an active head lice infestation of at least three live lice and/or viable nits. (Viability of nits to be determined by using magnifying lens at a distance of less than 0.6 cm from the scalp). Following application and rinsing of the test article, subject agrees not to shampoo, wash, or rinse their hair or scalp until the 24 hour post treatment evaluation has been completed. Subjects agree not to cut or chemically treat their hair while participating in the study. Subject and/or parent/guardian agree that the subject will not use any other form of lice treatment during the duration of the study. Subjects who are willing to sign informed consent for participation in the study. Subjects who are willing to sign informed assent for participation in the study.

Exclusion criteria

Exclusion criteria: Female subjects who are pregnant or lactating or planning to become pregnant during the study period. Females who are not ready to use acceptable contraceptive methods during the course of study. Scalp condition that could make it difficult to evaluate the extent and severity of an infestation or that would present a problem in the evaluation of response to therapy (e.g. psoriatic scalp lesions, extensive seborrheic dermatitis). Treatment for head lice (OTC, home remedy and/or prescription drugs) in the last 7 days. Subject who used any hair dye, bleaches, hair straightening or permanent wave solution on the hair within 14 days of randomization. Known history of irritation or sensitivity to pediculicides or hair care products. Subjects with known allergy or hypersensitivity to Spinosad/Permethrin/Ivermectin or any component of the test product. Subjects who are a known case of epilepsy or any neurological disorder. Subject receiving any other treatment which may interfere with the study results. Participation in a previous investigational drug study within the past 30 days. Does not understand the requirements for study participation and/or may likely exhibit poor compliance

Design outcomes

Primary

MeasureTime frame
Proportion of subjects within each treatment group who are lice free (without live lice) at the end of study.Timepoint: Subjects are assessed on day 1 (baseline) and on day 14 for the presence of live lice.

Secondary

MeasureTime frame
Proportion of subjects within each treatment group who are free from viable nits at the end of study.Timepoint: Subjects are assessed on day 1 (baseline) and on day 14 for the presence of viable nits.;Proportion of subjects within each treatment group with improvement in Pruritus score at the end of study compared to baseline.Timepoint: Pruritis assessment scoring is done at the baseline (day 1) and at the end of the study (day 14) None =0 The scalp does not itch. Mild=1 Ocassional episodes of itching, not bothersome. Moderate=2 Frequent, several times a day, bothersome. Severe=3 Nearly constant, frequent scratching, very bothersome.

Countries

India

Contacts

Public ContactDr Shashikumar BM

Mandya institute of medical sciences, Mandya

shashikumarbm@gmail.com9886197902

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Sep 19, 2026