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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Malloy, Jaret Capparelli, Edmund Gottschalk, Michael Guan, Xuesong Kothare, Prajakti Fineman, Mark |
| Description | Country affiliation: United States Author Affiliation: Malloy J ( Amylin Pharmaceuticals, Inc., San Diego, California 92121, USA. jaret.malloy@amylin.com) |
| Abstract | OBJECTIVE: This study assessed the pharmacokinetics, pharmacodynamics, and tolerability of single doses of exenatide in adolescent patients with type 2 diabetes mellitus (T2DM). METHODS: This was a randomized, single-blind, dose-escalation, crossover study in adolescent (age 10-16 years) patients with T2DM who were being treated with diet and exercise or a stable dose of metformin, a sulfonylurea, or a combination of metformin and a sulfonylurea for at least 3 months before screening. Eligible patients were allocated to receive single subcutaneous doses of exenatide 2.5 microg, exenatide 5 microg, and placebo, each followed by a standardized meal, on 3 separate days (maximum interval between first and third doses, 5 weeks). Exenatide 2.5 microg always preceded exenatide 5 microg in each treatment sequence. The primary end points were the pharmacokinetics and safety profile of exenatide; secondary end points included postprandial plasma glucose, serum insulin, and plasma glucagon concentrations. RESULTS: The study enrolled 13 adolescent patients with T2DM (7 females, 6 males; mean [SD] age, 15 [1] years; body mass index, 32.5 [5.0] kg/m(2); glycosylated hemoglobin, 8.2% [1.5%]). After administration of exenatide 5 microg, the geometric mean (SE) exenatide AUC(0-infinity) and C(max) were 339.5 (39.6) pg * h/mL and 85.1 (11.5) pg/mL, respectively (n = 12). The exenatide AUC appeared to be dose dependent, although exenatide was not quantifiable in all patients at the 2.5-microg dose; after administration of exenatide 2.5-microg, the geometric mean AUC(0-infinity)) was 159.2 (23.1) pg * h/mL (n = 6) and the geometric mean C(max) was 56.3 (10.1) pg/mL (n = 9). Both exenatide doses were associated with significant reductions in postprandial plasma glucose excursions compared with placebo (P < 0.01); the incremental mean (SE) AUC(15-360min) was -3465.6 (1587.3) mg * min/dL for exenatide 2.5 pg, -4422.2 (2434.4) mg * min/dL for exenatide 5 microg, and 3457.4 (1615.5) mg * min/dL for placebo. The 2 exenatide doses were also associated with significant reductions in postprandial plasma glucagon concentrations compared with placebo (P < 0.01); the respective incremental mean values for AUC(15-180min) were 125.5 (658.4), -1403.8 (632.1), and 1843.1 (540.6) pg * min/mL. There were no significant differences in serum insulin concentrations between exenatide and placebo. Exenatide was generally well tolerated, with no hypoglycemic events recorded during the study. CONCLUSIONS: In these adolescent patients with T2DM, administration of single 2.5- and 5-microg doses of exenatide were associated with dose-dependent increases in plasma exenatide concentrations and improved postprandial glucose concentrations compared with placebo. Both doses appeared to be well tolerated. ClinicalTrials.gov Identifier: NCT00254254. |
| File Format | HTM / HTML |
| ISSN | 01492918 |
| Issue Number | 4 |
| Volume Number | 31 |
| e-ISSN | 1879114X |
| Journal | Clinical Therapeutics |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2009-04-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Pharmacology Diabetes Mellitus, Type 2 Drug Therapy Hypoglycemic Agents Pharmacology Peptides Venoms Adolescent Area Under Curve Blood Glucose Drug Effects Child Cross-over Studies Dose-response Relationship, Drug Female Glucagon Blood Humans Administration & Dosage Adverse Effects Injections, Subcutaneous Insulin Male Postprandial Period Single-blind Method Journal Article Randomized Controlled Trial Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Pharmacology Pharmacology (medical) |
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