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A Clinical Endpoint Bioequivalence Study to Assess Efficacy and Safety of Ivermectin 0.5% Lotion in the Treatment of Head Lice

A Randomized, Multi-Center, Double-blind, Placebo Controlled, Parallel Group Trial to Evaluate Efficacy and Safety of Mayne Pharma's Ivermectin 0.5% Lotion Compared to Sklice® Ivermectin 0.5% Lotion in the Treatment of Head Lice

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03337490
Enrollment
296
Registered
2017-11-09
Start date
2017-10-02
Completion date
2017-12-18
Last updated
2020-09-17

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

Conditions

Head Lice

Brief summary

This is a phase 3 randomized, multi-center, double-blind, placebo controlled, parallel group design study.

Detailed description

This study is comprised of two phases: screening and treatment. The screening period is 24 hours, followed by the treatment phase of 15 ± 3 days. During the treatment phase, subjects will be randomized to either test, reference of placebo treatments (3:3:1) in a double-blind manner in an outpatient setting. Once eligibility is confirmed, randomization will occur at visit 2 (baseline, Day 1) i.e. initiation of treatment phase. The treatment phase will be 15 ± 3 days in duration wherein subject will receive treatment with investigational product (either test, reference or placebo) on Day 1 or baseline (visit 2). Efficacy will be evaluated at Day 15. Safety and tolerability will be evaluated based upon AEs and patient self-assessments and self-assessments collected during follow-up visits.

Interventions

DRUGIvermectin 0.5% Topical Application Lotion

Subjects on Test Product will receive a single dose, 117g, during the study to be applied at baseline.

DRUGIvermectin 0.5% Topical Application Lotion [SKLICE]

Subjects on Reference Product will receive a single dose, 117g, during the study to be applied at baseline.

DRUGPlacebo 0% Lotion

Subjects on Placebo will receive a single dose, 117g, during the study to be applied at baseline.

Sponsors

bioRASI, LLC
CollaboratorINDUSTRY
Mayne Pharma International Pty Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
6 Months to 18 Years
Healthy volunteers
No

Inclusion criteria

1. Subjects must have an active head lice infestation defined as: At least 3 live lice (adults and/or nymphs) present on the scalp and/or hair, as determined by a trained evaluator. The index subject must be the youngest family member, through the age of 18, presenting with an active head lice infestation. 2. Household members that have an active head lice infestation defined as: At least 1 live louse (adult and/or nymph) present on the scalp and/or hair, as determined by a trained evaluator (with the exception of the male head of household who may self-assess as being lice free) will receive the Standard of Care with an over-the-counter head lice treatment product. Up to 3 infested household members may receive treatment, if more than 3 household members are infested, the entire household will be excluded from the study. 3. Subject is male or female. 4. Index subject is at least 6 months through 18 years of age at time of enrollment. 5. Subject is in good general health based on medical history. 6. Each subject must have an appropriately signed Informed Consent agreement. A caregiver must sign an Informed Consent agreement for children not old enough to do so. Children ages 6-17 years of age will be administered a child's Assent Form. 7. The caregiver of a subject must be willing to allow all household members to be screened for head lice. If other household members are found to have an active head lice infestation, they must be willing and able to participate in receiving the Standard of Care. No more than one working male per household may be excluded from evaluation if he is assessed as being lice free by himself or the caregiver and cannot come in due to his work schedule. If this individual may have lice, he must come to the test facility; otherwise the entire household will be excluded from study participation. 8. Subject and/or their caregiver must be physically able and willing to apply the test product according to established treatment methods. 9. Subject agrees not to use any other form of lice treatments (commercial, community-anecdotal, or mechanical/manual) while participating in the study. 10. Following application and rinsing of the test product, subject agrees not to shampoo, wash, or rinse their hair or scalp until the 24-hour post-treatment evaluation has been completed. 11. Subject agrees to not cut or chemically treat their hair while participating in the study. 12. Subject agrees to follow all study instructions, including attending all follow-up appointments. 13. Female index subjects of childbearing potential must be willing to have a urine pregnancy test prior to inclusion in this study. 14. In the event of a subject judged to be incapable of self-treating, the household must have a caregiver willing to apply the treatment at home.

Exclusion criteria

1. Index subjects with greater than 3 household members with at least 1 live louse (adult and/or nymph) present on the scalp and/or hair, as determined by a trained evaluator will be automatically excluded from the trial. 2. Youngest household member is over 18 years of age. 3. History of irritation or sensitivity to ivermectin or the lotion components, pediculicides or hair care products. 4. Presentation at the treatment site with visible skin/scalp condition(s) that are not attributable to head lice infestation, such as an erythema score that is \>2, blisters, vesicles which, in the opinion of the investigative personnel or medical monitor, will interfere with safety and/or efficacy evaluations. 5. Presentation at the treatment site with eczema or atopic dermatitis. 6. Treatment for head lice (Over the counter \[OTC\], home remedy and/or Prescription) in the last 15 days. 7. Any condition or illness that, in the opinion of the investigator, may compromise the objective of the protocol. 8. Is receiving any other treatment which, in the opinion of the investigator or medical monitor, may interfere with the study results. 9. Females (including caregivers who come in contact with the investigational product) who are pregnant, nursing or planning a pregnancy which could include index subjects. If a household has a pregnant female who has an active case of lice, the entire household is excluded from participation. If this pregnant household member does not have an active infestation, this individual must NOT be the caregiver (one who provides treatment to other household members). 10. Index subject of child-bearing potential, and unwilling to use an adequate method of contraception for the duration of the study. Adequate methods of contraception include: abstinence, vasectomized partner, oral birth control pills, birth control injections or patches, Intra uterine devices, condoms with a spermicidal jelly or a diaphragm with spermicidal jelly, surgical sterilization. Index subjects and/or their caregivers will be considered non-child-bearing if the following has occurred: full hysterectomy or bilateral oophorectomy is considered surgically sterile. Tubal ligation is not considered equivalent to female sterilization. 11. Participation in a previous investigational drug study within the past 30 days. 12. Does not understand the requirements for study participation and/or may likely exhibit poor compliance, in the opinion of the investigator. 13. Does not have a known household affiliation with their household members (i.e., do not stay in one household consistently, sleeping at one place several nights and then at another place or location). Household is defined as living in a shared area or space (for example the same house or apartment unit).

Design outcomes

Primary

MeasureTime frameDescription
The Proportion of Index Subjects Who Are Lice Free at Day 1515 DaysThe primary endpoint is the proportion of index subjects who are lice free at Day 15

Secondary

MeasureTime frameDescription
The Number of All Index Subjects Who Are Lice-free at Day 22 DaysThe secondary endpoint includes the number of all index subjects who are lice-free at Day 2

Countries

United States

Participant flow

Participants by arm

ArmCount
Ivermectin 0.5% Lotion
Ivermectin 0.5% lotion, topical, 117g, single dose Ivermectin 0.5% Topical Application Lotion: Subjects on Test Product will receive a single dose, 117g, during the study to be applied at baseline.
128
Ivermectin 0.5% Lotion [SKLICE]
Sklice 0.5% Lotion, topical, 117g, single dose Ivermectin 0.5% Topical Application Lotion \[SKLICE\]: Subjects on Reference Product will receive a single dose, 117g, during the study to be applied at baseline.
125
Placebo 0% Lotion
0% lotion, 117g, single dose Placebo 0% Lotion: Subjects on Placebo will receive a single dose, 117g, during the study to be applied at baseline.
42
Total295

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyLack of Efficacy101235
Overall StudyLost to Follow-up010
Overall StudyPhysician Decision010
Overall StudyWithdrawal by Subject100

Baseline characteristics

CharacteristicIvermectin 0.5% LotionIvermectin 0.5% Lotion [SKLICE]Placebo 0% LotionTotal
Age, Customized
12-16 Years
22 Participants22 Participants6 Participants50 Participants
Age, Customized
=>16 Years
15 Participants19 Participants6 Participants40 Participants
Age, Customized
1 Month-2 Years
2 Participants11 Participants3 Participants16 Participants
Age, Customized
2-12 Years
89 Participants73 Participants27 Participants189 Participants
Head Lice Visual Assessment128 Participants125 Participants42 Participants295 Participants
Race/Ethnicity, Customized
American Indian or Alaska native
0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Black or African American
3 Participants2 Participants1 Participants6 Participants
Race/Ethnicity, Customized
Hispanic or Latino
102 Participants105 Participants35 Participants242 Participants
Race/Ethnicity, Customized
Missing
15 Participants11 Participants4 Participants30 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
11 Participants9 Participants3 Participants23 Participants
Race/Ethnicity, Customized
Other/missing
6 Participants8 Participants2 Participants16 Participants
Race/Ethnicity, Customized
White
118 Participants115 Participants39 Participants272 Participants
Region of Enrollment
United States
128 Participants125 Participants42 Participants295 Participants
Sex: Female, Male
Female
88 Participants91 Participants29 Participants208 Participants
Sex: Female, Male
Male
40 Participants34 Participants13 Participants87 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 1280 / 1250 / 42
other
Total, other adverse events
0 / 1283 / 1252 / 42
serious
Total, serious adverse events
0 / 1280 / 1250 / 42

Outcome results

Primary

The Proportion of Index Subjects Who Are Lice Free at Day 15

The primary endpoint is the proportion of index subjects who are lice free at Day 15

Time frame: 15 Days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ivermectin 0.5% LotionThe Proportion of Index Subjects Who Are Lice Free at Day 15106 Participants
Ivermectin 0.5% Lotion [SKLICE]The Proportion of Index Subjects Who Are Lice Free at Day 1598 Participants
Placebo 0% LotionThe Proportion of Index Subjects Who Are Lice Free at Day 157 Participants
Secondary

The Number of All Index Subjects Who Are Lice-free at Day 2

The secondary endpoint includes the number of all index subjects who are lice-free at Day 2

Time frame: 2 Days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ivermectin 0.5% LotionThe Number of All Index Subjects Who Are Lice-free at Day 2112 Participants
Ivermectin 0.5% Lotion [SKLICE]The Number of All Index Subjects Who Are Lice-free at Day 2109 Participants
Placebo 0% LotionThe Number of All Index Subjects Who Are Lice-free at Day 210 Participants

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