Table 2.
Pharmacokinetic parameters of SM141 and SM142.
| Parameters | SM141 | SM142 | |||
|---|---|---|---|---|---|
| IV | PO | IP | IV | PO | |
| T1/2 (h) | 0.8 | ND | 0.8 | 2.1 | 2.1 |
| Tmax (h) | 0.08 | 0.8 | 0.14 | 0.08 | 0.08 |
| Cmax (μM) | 3.9 | 0.2 | 2.7 | 0.4 | 0.6 |
| AUClast (μM.h) | 1.3 | 0.14 | 1.6 | 0.4 | 0.5 |
| AUCINF_obs (min.ng/mL) | 42350 | 7325 | 49620 | 18490 | 20843 |
| CI_Obs (mL/min/kg) | 71.5 | - | 169 | - | |
| MRTINF_obs (h) | 0.4 | - | 1.9 | - | |
| VSS_obs (l/kg) | 1.6 | - | 13.2 | - | |
| % Bioavailability | - | 5 | 35.2 | - | 37.5 |
IV: Intravenous dosing; IP: Intraperitoneal dosing; PO: Oral dosing. For SM141 the final formulation was 5/95 DMSO/saline and for SM142 the final formulation was 5% DMSO, 5% Tween-80, 90% saline (v:v:v).