NCT04290039

Sublingual vs IV Atropine Bioavailability Study

A Randomized, Three-Sequence, Three-Period Crossover Study to Assess the Bioavailability and Pharmacokinetics of a Single Dose of Atropine Administered Sublingually in Healthy Adult Volunteers

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 15 (actual)
• Sponsor: Biomedical Advanced Research and Development Authority · Federal
• Sex: All
• Age: 18 Years – 55 Years
• Healthy volunteers: Accepted

Summary

This randomized, three-sequence, three-period, phase 1 study is designed to assess the bioavailability and pharmacokinetics (PK) of sublingually administered atropine sulfate ophthalmic solution 1% USP (at 0.5 mg and 1.0 mg; test) compared to atropine sulfate injection administered IV (1.0 mg; reference).

Detailed description

This is a randomized, three-sequence, three-period crossover study to assess the bioavailability and PK of a single dose of atropine administered sublingually in healthy adult volunteers. At least 15 healthy male and female volunteers will be enrolled to obtain approximately 12 evaluable subjects in the per protocol population. Eligible subjects will be randomized at a 1:1:1 ratio to receive one of three treatment dosing sequences (A, B, or C). Subjects assigned to treatment dosing sequence A will receive a low dose sublingually at Visit 1; Day 1 (Period 1), a high dose sublingually at Visit 2; Day 8 (Period 2) and an IV dose at Visit 3; Day 15 (Period 3). Subjects assigned to treatment dosing sequence B will receive a high dose sublingually at Visit 1; Day 1 (Period 1), an IV dose at Visit 2; Day 8 (Period 2) and a low dose sublingually at Visit 3; Day 15 (Period 3). Subjects assigned to treatment dosing sequence C will receive an IV dose at Visit 1; Day 1 (Period 1), a low dose sublingually at Visit 2; Day 8 (Period 2), and a high dose sublingually at Visit 3; Day 15 (Period 3).

Conditions

• Toxic Effect of Organophosphate and Carbamate Insecticides

Interventions

Type	Name	Description
DRUG	Atropine Sulfate Ophthalmic Solution	Atropine sulfate ophthalmic solution, USP 1% is a sterile topical anti-muscarinic indicated for cyclopegia, mydriasis, and penalization of the healthy eye in the treatment of amblyopia. Each mL of Atropine Sulfate Ophthalmic Solution USP, 1% contains active ingredient: atropine sulfate 10 mg equivalent to 8.3 mg of atropine. Inactive ingredients include benzalkonium chloride 0.1 mg (0.01%), dibasic sodium phosphate, edetate disodium, hypromellose (2910), monobasic sodium phosphate, hydrochloric acid and/or sodium hydroxide may be added to adjust pH (3.5 to 6.0), and water for injection, USP.
DRUG	Atropine Sulphate Injection	Atropine sulfate injection, USP, 8mg/20mL (0.4 mg per mL) is a sterile, nonpyrogenic, isotonic, clear solution of atropine sulfate in water for injection with sodium chloride sufficient to render the solution isotonic. Each mL contains atropine sulfate, 0.4 mg; benzyl alcohol, 9 mg; sodium chloride 9 mg; and may contain sulfuric acid for pH adjustment, pH 3.5 (3.0 to 3.8).

Timeline

• Start date: 2020-01-04
• Primary completion: 2020-02-02
• Completion: 2020-02-08
• First posted: 2020-02-28
• Last updated: 2023-06-22
• Results posted: 2021-08-11

Locations

1 site across 1 country: United States

Regulatory

• FDA-regulated drug study