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Small Molecules Evolve

Drug Hunter

Small molecule drugs make up most of the drugs we take conveniently as pills, including painkillers like ibuprofen (Advil), antibiotics like penicillin and amoxicillin, or cholesterol-lowering drugs like atorvastatin (Lipitor). The small molecules drugs of today look nothing like the molecules of the 1970s.

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Allosteric Covalent Inhibitors of the STAT3 Transcription Factor from Virtual Screening

Covalent Modifiers

4c00622 The STAT family of transcription factors are important signaling hubs, with several of them, particularly STAT3, being emerging oncotargets already investigated in clinical trials. Keserű ACS Medicinal Chemistry Letters 2025 16 (6), 991-997 DOI: 10.1021/acsmedchemlett.4c00622

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Chimeric deubiquitinase engineering reveals structural basis for specific inhibition of the mitophagy regulator USP30

Covalent Modifiers

Whether enhanced mitochondrial quality control through inhibition of USP30 can protect dopaminergic neurons is currently being explored in a clinical trial for Parkinsons disease. However, the molecular basis for specific inhibition of USP30 by small molecules has remained elusive.

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Small Molecule of the Year – 2022

Drug Hunter

The molecule was the first allosteric TYK2 inhibitor to enter clinical trials, is the first JAK-family kinase inhibitor approved for psoriasis, and is also the first approved drug targeting a pseudokinase domain. MRTX1133 is currently in Ph I/II trials as an oral agent. #3: LP0200 has completed a Ph.

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ALS drug effectively treats Alzheimer's disease in new animal study

Science Daily: Pharmacology News

Experimental drug NU-9 -- a small molecule compound approved by the U.S. Food and Drug Administration (FDA) for clinical trials for the treatment of amyotrophic lateral sclerosis (ALS) -- improves neuron health in animal models of Alzheimer's disease, according to a new study.

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More LRRK2 On-Target Toxicity?

Drug Hunter

Clinical advancement of LRRK2 inhibitors was initially stalled by concerns about on-target lung findings in primates, but these were ameliorated by a Merck/Genentech/Pfizer/MJFF study showing that these lung changes were reversible, and Biogen/Denali has currently a small molecule (BIIB122/DNL151) in Ph. I ( NCT04557800 ).

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PALAZESTRANT

New Drug Approvals

It is a small molecule with a dual mechanism of action, acting as both a complete estrogen receptor antagonist and a selective estrogen receptor degrader (SERD). Clinical Trials: Palazestrant is currently in clinical trials, including Phase 1/2 and Phase 3 studies, for the treatment of ER+, HER2- metastatic breast cancer.