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. 2023 Jan 19;16(2):151. doi: 10.3390/ph16020151

Table 3.

The representatives of clinical trials of new small molecules targeting dementia.

Small Molecule Mechanism of Action Clinical Trials ID Condition or Disease
HT-0712 Phosphodiesterase 4 inhibitor NCT02013310 age-associated memory impairment
BPN14770 Phosphodiesterase 4 inhibitor NCT02648672
NCT0303010
NCT02840279
safety, tolerability, and pharmacokinetic profile
PF-04447943 Phosphodiesterase 9 inhibitor NCT00988598
NCT00930059
cognitive and behavioral symptoms of AD
BI 409306 Phosphodiesterase 9 inhibitor NCT02392468
NCT02337907
cognitive impairment due to AD
Intepirdine Selective 5-HT6 receptor antagonist NCT02586909 long-term safety and tolerability in LBD
Nelotanserin 5-HT2A inverse agonist NCT02871427 long-term safety and tolerability in LBD
Ramelteon Melatonin receptors MT1 and MT2 selective agonist NCT00325728 mild-to-moderate AD
Bosutinib Tyrosine kinases Abl/Src dual inhibitor NCT03888222 safety, tolerability, biomarkers in LBD
Nilotinib Abl tyrosine kinase inhibitor NCT04002674 safety, tolerability, biomarkers in LBD
Irsenontrine Phosphodiesterase 9 inhibitor NCT03467152 safety, tolerability, biomarkers in LBD
Pimavanserin 5-HT2A inverse agonist NCT03325556 dementia-related psychosis
Neflamapimod p38 mitogen-activated protein (MAP) kinase inhibitor NCT04001517 cognitive effects in LBD