Table 1. Pim inhibitors in development.
Drug | Class | Phase of development | Mechanism of action MM | Potency | Clinical trial identification | Condition | Status | Endpoint | Salient reports | Ref. |
---|---|---|---|---|---|---|---|---|---|---|
LGH447 | 3-S-aminopiperidine pyridyl carboxamide | Phase I/II | -Reduces p4EBP1, pS6K -Reduces pBAD -Cleave PARP and caspases 3,7,8,9 -Cell Cycle Arrest Go/G1 | Ki Pim-1 5.8pM; Pim-2 18.0pM; Pim-3 9.3pM | NCT01456689 | RRMM | Recruiting | MTD RDE | MTD 500 mg od ORR 10.5% CBR 21.1% DCR 71.9% | 52, 53, 71 |
NCT02160951 | RRMM | Recruiting | MTD RDE | Not reported at time of writing | ||||||
NCT02144038 | RRMM, in combination with PI3K inhibitor BYL719 | Recruiting | MTD RDE | Not reported at time of writing | ||||||
NCT02078609 | AML/ high risk MDS | Recruiting | MTD | Not reported at time of wristing | ||||||
AZD1208 | Thiazolidene | Phase I (terminated) | -Reduces p4EBP1, pS6K -Reduces pBAD | IC50 <5 nM for each isoform | NCT01489722 | AML | Terminated | MTD Efficacy | Not for further investigation owing to safety/efficacy issue | 82 |
NCT01588548 | Advanced lymphoma and solid organ malignancies | Completed | MTD | |||||||
SGI-1776 | Imidazopyridine | Phase I (terminated) | -Reduces p4EBP1, pS6K -Reduces pBAD -Autophagy | IC50 Pim-1 7 nM; Pim-2 363 nM; Pim-3 69 nM | NCT00848601 | Refractory Prostate cancer/ RR NHL | Terminated | MTD PK PD | Terminated owing to cardiotoxicity | 39 |
NCT01239108 | RR Leukemia | Withdrawn | MTD | Terminated owing to cardiotoxicity | ||||||
LGB321 | 3- S-aminopiperidine pyridyl carboxamide | Preclinical | -Reduces p4EBP1, pS6K -Reduces pBAD | Ki Pim-1 1pM; Pim-2.1pM; Pim-3 0.8pM | N/A | N/A | N/A | N/A | 1, 16, 72 | |
AZD1897 | Thiazolidene | Preclinical | -Reduces p4EBP1, pS6K | Data not available | N/A | N/A | N/A | N/A | 75 |
Abbreviations: AML, acute myeloid leukemia; CBR, clinical benefit rate; DCR, disease control rate; MTD, maximum tolerated dose; IC50, inhibitory concentration 50; Ki, inhibitory constant; MDS, myelodysplastic syndrome; ORR, overall response rate; RDE, recommended dose for expansion; RRMM, relapsed/refractory multiple myeloma; RR NHL, relapsed/refractory nonHodgkin lymphoma.