Safety and Tolerability of a Novel Malathion Formulation in Infants and Toddlers With Head Lice

This study has been terminated.
(Lack of enrollment)
Information provided by:
Taro Pharmaceuticals USA Identifier:
First received: February 10, 2006
Last updated: December 19, 2013
Last verified: November 2013

In a previous phase II study, the safety and efficacy of a novel formulation of malathion 0.5% was evaluated in patients 2 years of age and older. Based on the results of that study, this formulation is currently in a phase III study for that population.

The current study will use blood markers and clinical evaluations to determine the safety and tolerability of this formulation when used in children 6-24 months of age.

Condition Intervention Phase
Lice Infestations
Drug: MALG
Phase 2

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Endpoint Classification: Safety Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Phase II, Multi-center, Open-Label, Safety and Tolerance Study of a Novel Malathion Formulation in Infants and Toddlers With Pediculosis Capitis

Resource links provided by NLM:

Further study details as provided by Taro Pharmaceuticals USA:

Primary Outcome Measures:
  • Change in cholinesterase level [ Time Frame: 1 day ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • Clinical evidence of cholinesterase inhibition [ Time Frame: 1 day ] [ Designated as safety issue: Yes ]
  • Local tolerability [ Time Frame: 1 day ] [ Designated as safety issue: Yes ]
  • Cure of head lice 14 days after last treatment [ Time Frame: 2 weeks ] [ Designated as safety issue: No ]

Estimated Enrollment: 30
Study Start Date: February 2006
Study Completion Date: December 2006
Primary Completion Date: October 2006 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Drug: MALG
30 minute application


Ages Eligible for Study:   6 Months to 24 Months
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Confirmed active head lice infestation
  • Parent or guardian must be able to apply treatment

Exclusion Criteria:

  • Allergy to pediculicides or hair care products
  • Scalp conditions other than head lice
  • Previous head lice treatment within the past 4 weeks
  • Current antibiotic treatment
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00291057

United States, Arizona
Investigator Site
Scottsdale, Arizona, United States
United States, Florida
Investigator Site
St. Petersburg, Florida, United States
Investigator Site
West Palm Beach, Florida, United States
United States, New York
Investigator Site
New York, New York, United States
United States, Ohio
Investigator Site
Miamiville, Ohio, United States
Sponsors and Collaborators
Taro Pharmaceuticals USA
  More Information

No publications provided

Responsible Party: Medical Director, Taro Pharmaceuticals USA Identifier: NCT00291057     History of Changes
Other Study ID Numbers: MALG-0508 
Study First Received: February 10, 2006
Last Updated: December 19, 2013
Health Authority: United States: Food and Drug Administration

Keywords provided by Taro Pharmaceuticals USA:
Head Lice

Additional relevant MeSH terms:
Lice Infestations
Ectoparasitic Infestations
Parasitic Diseases
Skin Diseases
Skin Diseases, Infectious
Skin Diseases, Parasitic processed this record on February 04, 2016