Conditions: Infection, Human Immunodeficiency Virus
Keywords: Lamivudine Safety Sorbitol Pharmacokinetics
Allocation: RANDOMIZED | Intervention model: CROSSOVER
Enrollment: 16
Healthy volunteers: yes

Brief summary:
Lamivudine (3TC) is a nucleoside analogue indicated in combination with other antiretroviral agents for the treatment of human immunodeficiency virus type 1 (HIV-1) infection in adults and children. Documented literature elucidates that simultaneous administration of multiple sorbitol-containing products could increase the potential for a significant interaction and may contribute to the lower 3TC exposures.

In this study several sorbitol doses (3.2 gram (g), 10.2 g, and 13.4 g solutions) will be administered with lamivudine to investigate dose dependency and mimic the situation where multiple sorbitol-containing antiretroviral medications may be co-administered with lamivudine. It will be open label, randomized, 4-way crossover (by William's design method) design at a single centre. Randomized participants will receive a single dose of each of four treatments after wash out period of minimum 7 days.

Detailed description:

Arms:
arm 1: Participant will receive single dose of Lamivudine 300 mg (30 ml of 10 mg/ml Oral Solution) after overnight fasting. Treatment period will be separated by at least 7 day wash out period. arm 2: Participant will receive single dose of Lamivudine 300 mg (30 ml of 10 mg/ml Oral Solution) + oral solution of Sorbitol 3.2 g after overnight fasting. Treatment period will be separated by at least 7 day wash out period. arm 3: Participant will receive single dose of Lamivudine 300 mg (30 ml of 10 mg/ml Oral Solution) + oral solution of Sorbitol 10.2 g after overnight fasting. Treatment period will be separated by at least 7 day wash out period arm 4: Participant will receive single dose of Lamivudine 300 mg (30 ml of 10 mg/ml Oral Solution) + oral solution of Sorbitol 13.4 g after overnight fasting. Treatment period will be separated by at least 7 day wash out period

Interventions: intervention 1: Lamivudine intervention 2: Sorbitol
Intervention descriptions: intervention 1: It is a clear, colorless to pale yellow solution with the odour of fruit. It will be provided in a 240 mL bottle with the strength of 10 mg/mL Lamivudine 300 mg (30 mL of solution) will be administered orally to the participants intervention 2: It is a clear, colorless, odourless solution. It will be available in 3 dosage levels viz;. 3.2 g (low dose), 10.2 g (medium dose) and 13.4 g (high dose) sorbitol total dose.

Protocol document: