TABLE 2

CaSR NAMs previously developed for systemic use and tested in humans potentially available for repurposing as inhaled asthma drugs

Development compound table illustrating compound code, development company, chemical structure, molecular weight (MW), crystal structures, developmental stages and number of patients, duration, and references to the clinical trials. NPSP-795, Ronacaleret, JTT-305, and AXT-914 crystal structures were generated as part of the current studies.

CodeCompanyMW (g/mol)Crystal Structure; PubChem CIDDevelopment StageStdInChlKey; NCT; References
NPSP795/SB-423562 (amino-alcohol) NPSP790/SB-423557 (ester prodrug) NPSP795/SHP635 (amino-alcohol)NPS/GlaxoSmithKline (osteoporosis); NPS (autosomal dominant hypocalcemia type 1)436.5Embedded ImagePhase I (n = 28; i.v.; two study sessions 7 days apart) (n = 50; oral; >two study sessions 7 days apart); phase II (n = 7; 17 days; i.v.)NJBFJCJKWWIKRD-HSZRJFAPSA-N; https://pubmed.ncbi.nlm.nih.gov/19786130 NCT02204579; https://pubmed.ncbi.nlm.nih.gov/31063613
9910902
Ronacaleret/SB-751689 (amino-alcohol)GlaxoSmithKline (osteoporosis)447.5Embedded ImagePhase II (n = 569; 12 mo; oral)FQJISUPNMFRIFZ-HXUWFJFHSA-N; NCT00471237; https://pubmed.ncbi.nlm.nih.gov/23756230
10345214
JTT-305/MK-5442; Encaleret (amino alcohol)Japan Tobacco/Merck (osteoporosis)514Embedded ImagePhase II (n = 526; 12 mo; oral)UNFHDRVFEQPUEL-DENIHFKCSA-N; NCT00996801; https://pubmed.ncbi.nlm.nih.gov/26556736
46917559
AXT914 (quinazolin-2-one)Novartis (osteoporosis)487.4Not applicable.Phase II (n = 105; 4 wk; oral)NCT00417261; https://pubmed.ncbi.nlm.nih.gov/24769332