Spinosad

12.1 Mechanism of Action Spinosad causes neuronal excitation in insects. After periods of hyperexcitation, lice and mites become paralyzed and die.

1 INDICATIONS AND USAGE Spinosad Topical Suspension is a pediculicide indicated for the topical treatment of head lice infestations in adult and pediatric patients 6 months of age and older. ( 1.1 ) Spinosad Topical Suspension is a scabicide indicated for the topical treatment of scabies infestations in adult and pediatric patients 4 years of age and older. ( 1.2 ) 1.1 Head Lice Infestations Spinosad Topical Suspension is indicated for the topical treatment of head lice infestations in adult and pediatric patients 6 months of age and older. Adjunctive Measures for Head Lice Infestations Spinosad Topical Suspension should be used in the context of an overall lice management program: Wash in hot water or dry-clean all recently worn clothing, hats, used bedding and towels. Wash personal care items such as combs, brushes and hair clips in hot water. A fine-tooth comb or special nit comb may be used to remove dead lice and nits. 1.2 Scabies Infestations Spinosad Topical Suspension is indicated for the topical treatment of scabies infestations in adult and pediatric patients 4 years of age and older. Adjunctive Measures for Scabies Infestations Wash in hot water or dry-clean any bedding, clothing and towels used by anyone having scabies.

2 DOSAGE AND ADMINISTRATION For topical use only. Not for oral, ophthalmic, or intravaginal use. ( 2 ) Treatment of head lice infestations ( 2.2 ): Shake bottle well Apply a sufficient amount to cover dry scalp, then apply to dry hair Rinse off with warm water after 10 minutes Repeat treatment only if live lice are seen 7 days after first treatment Treatment of scabies infestations ( 2.3 ): Shake bottle well Apply product to skin by rubbing it in to completely cover the body from the neck down to the soles of the feet Patients with balding scalp should also apply product to the scalp, hairline, temples, and forehead Allow to absorb in the skin and dry for 10 minutes before getting dressed Leave on the skin for at least 6 hours before showering or bathing 2.1 Important Administration Instructions For topical use only. Spinosad Topical Suspension is not for oral, ophthalmic, or intravaginal use. Avoid contact with eyes. If Spinosad Topical Suspension gets in or near the eyes, rinse thoroughly with water. 2.2 Treatment of Head Lice Infestations Shake bottle well. Apply a sufficient amount of Spinosad Topical Suspension to cover dry scalp, then apply to dry hair. Depending on hair length, apply up to 120 mL (one bottle) to adequately cover scalp and hair. Leave on for 10 minutes, then thoroughly rinse off with warm water. Wash hands after use. If live lice are seen 7 days after the first treatment, a second treatment should be applied. Apply Spinosad Topical Suspension on pediatric patient only under direct supervision of an adult [see Warnings and Precautions (5.1) ]. 2.3 Treatment of Scabies Infestations Shake bottle well. Apply a sufficient amount of Spinosad Topical Suspension to skin to completely cover the body from the neck to the toes (including the soles of the feet). For patients with balding scalp, also apply product to the scalp, hairline, temples, and forehead. Allow to absorb into the skin and dry for 10 minutes before getting dressed. Leave on the skin for at least 6 hours before showering or bathing. Apply Spinosad Topical Suspension on pediatric patient only under direct supervision of an adult .

6 ADVERSE REACTIONS Most common adverse events for lice treatment (>1%) were application site erythema and ocular erythema. ( 6.1 ) Most common adverse reactions for scabies treatment (>1%) were application site irritation (pain and burning) and dry skin. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact ParaPRO LLC at 1-855-628-7622 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Studies Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in clinical practice. Head Lice Infestations Spinosad Topical Suspension was studied in two randomized, active-controlled trials (N=552) in subjects with head lice; Table 1 presents selected adverse events, regardless of relationship to Spinosad Topical Suspension, that occurred in at least 1% of subjects. Table 1: Selected Adverse Events Occurring in at least 1% of Subjects with Head Lice Infestation Signs Spinosad (N=552) Permethrin 1% (N=457) Application site erythema 17 (3%) 31(7%) Ocular erythema 12 (2%) 15 (3%) Application site irritation 5 (1%) 7 (2%) Other less common reactions (less than 1% but more than 0.1%) were application site dryness, application site exfoliation, alopecia, and dry skin. Scabies Infestations Spinosad Topical Suspension was studied in three randomized, double-blind, vehicle-controlled trials (Trial 1, Trial 2, and Trial 3) in 592 subjects with scabies infestation, of which 165 were ages 4-17 and 427 were adults. Subjects received a single application of Spinosad Topical Suspension to the skin from the neck to the soles of the feet, which was washed off after a minimum of 6 hours. Table 2 presents adverse reactions related to Spinosad Topical Suspension treatment that occurred in at least 1% of subjects. Table 2: Adverse Reactions Occurring in at least 1% of Subjects with Scabies Infestation (Trials 1, 2 and 3) Signs Spinosad (N=322) Vehicle (N=270) Application site irritation Application site irritation also includes application site pain and burning sensation. 8 (3%) 0 (0%) Dry skin 6 (2%) 0 (0%)