PMID- 19476474 OWN - NLM STAT- MEDLINE DCOM- 20101210 LR - 20220408 IS - 1463-1326 (Electronic) IS - 1462-8902 (Linking) VI - 11 IP - 8 DP - 2009 Aug TI - Pharmacokinetics, pharmacodynamics and tolerability of multiple oral doses of linagliptin, a dipeptidyl peptidase-4 inhibitor in male type 2 diabetes patients. PG - 786-94 LID - 10.1111/j.1463-1326.2009.01046.x [doi] AB - AIMS: To investigate the safety, tolerability, pharmacokinetic and pharmacodynamic properties of multiple oral doses of the dipeptidyl peptidase-4 (DPP-4) inhibitor linagliptin (BI 1356) in patients with type 2 diabetes mellitus. METHODS: Forty-seven male type 2 diabetic patients received linagliptin 1, 2.5, 5 or 10 mg, or placebo, once daily for 12 days. RESULTS: Linagliptin exposure [area under the plasma concentration-time curve and maximum plasma concentration (Cmax)] increased less than proportionally with dose. Accumulation half-life was short (8.6-23.9 h), resulting in rapid attainment of steady state (2-5 days) and little accumulation (range: 1.18-2.03). The long terminal half-life (113-131 h) led to a sustained inhibition of DPP-4 activity. Renal excretion was below 1% on day 1 in all dose groups. Inhibition of plasma DPP-4 activity correlated well with linagliptin plasma concentrations, resulting in DPP-4 inhibition >90% in the two highest dose groups; even 24 h postdose, DPP-4 inhibition was >80%. Following an oral glucose tolerance test, 24 h after the last dose, statistically significant reductions of glucose excursions were observed with linagliptin (2.5, 5 and 10 mg doses) compared with placebo. Linagliptin was well tolerated. The frequency of adverse events (AEs) was not higher with linagliptin (54%) than with placebo (75%). No serious AEs and no episodes of hypoglycaemia were reported. CONCLUSIONS: In type 2 diabetic patients, multiple rising doses of linagliptin were well tolerated and resulted in significant improvements of glucose parameters. Together with the favourable pharmacokinetics, these results confirm the unique profile of linagliptin in the DPP-4 inhibitor class. FAU - Heise, T AU - Heise T AD - Profil Institut fur Stoffwechselforschung GmbH, Hellersbergstrasse, Neuss, Germany. FAU - Graefe-Mody, E U AU - Graefe-Mody EU FAU - Huttner, S AU - Huttner S FAU - Ring, A AU - Ring A FAU - Trommeshauser, D AU - Trommeshauser D FAU - Dugi, K A AU - Dugi KA LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial DEP - 20090519 PL - England TA - Diabetes Obes Metab JT - Diabetes, obesity & metabolism JID - 100883645 RN - 0 (Dipeptidyl-Peptidase IV Inhibitors) RN - 0 (Purines) RN - 0 (Quinazolines) RN - 3X29ZEJ4R2 (Linagliptin) RN - EC 3.4.14.5 (Dipeptidyl Peptidase 4) SB - IM MH - Administration, Oral MH - Adult MH - Area Under Curve MH - Diabetes Mellitus, Type 2/*drug therapy MH - Dipeptidyl Peptidase 4/blood MH - Dipeptidyl-Peptidase IV Inhibitors/*administration & dosage/adverse effects/*pharmacokinetics MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Half-Life MH - Humans MH - Linagliptin MH - Male MH - Metabolic Clearance Rate MH - Middle Aged MH - Purines/administration & dosage/*adverse effects/*pharmacokinetics MH - Quinazolines/administration & dosage/*adverse effects/*pharmacokinetics MH - Young Adult EDAT- 2009/05/30 09:00 MHDA- 2010/12/14 06:00 CRDT- 2009/05/30 09:00 PHST- 2009/05/30 09:00 [entrez] PHST- 2009/05/30 09:00 [pubmed] PHST- 2010/12/14 06:00 [medline] AID - DOM1046 [pii] AID - 10.1111/j.1463-1326.2009.01046.x [doi] PST - ppublish SO - Diabetes Obes Metab. 2009 Aug;11(8):786-94. doi: 10.1111/j.1463-1326.2009.01046.x. Epub 2009 May 19.