In May, AstraZeneca reported positive Ph. I results for their oral small molecule PCSK9 inhibitor. PMV Pharma’s potential first-in-class p53 Y220C reactivator and Janssen’s selective OX2R (orexin-2 receptor) antagonist with positive Ph. III results are also featured this month. Additional molecules we found notable from May include a saxitoxin-derived NaV1.7 inhibitor from SiteOne Therapeutics and Biogen’s brain-penetrant BTK (Bruton’s tyrosine kinase) inhibitor. You can find out what compounds made our May 2024 Molecules of the Month list and check out recent articles for each linked below: A...

Learning from industry leaders is one of the best ways to grow as a drug discovery professional. This table lists some of the top drug discovery blogs and biopharma social media influencers, all of whom are clearly passionate about their work. These are excellent, free resources that offer valuable insights and perspectives.

In May 2024, several significant transactions worth millions and billions of dollars took place to advance next-generation neuroplastogens, KRAS G12C inhibitors, Pompe disease treatments, and molecular glues. We also highlight positive clinical readouts for hot targets such as tetrameric transthyretin (TTR) stabilizers, Hedgehog pathway inhibitors, plasma kallikrein inhibitors, dipeptidyl peptidase 1 (DPP-1) inhibitors, and PCSK9 inhibitors. Here's a recap of the most notable news highlights from May 2024!

Cerevance’s CVN293 is an oral, CNS-penetrant, selective inhibitor of potassium efflux-mediated NLRP3-inflammasome activation in microglia for the treatment of neurodegenerative disorders. Cerevance’s NETSseq platform was used to discover a microglia-specific potassium efflux channel, KCNK13, which allows modulation of the NLRP3-inflammasome in the CNS without affecting peripheral innate immunity. Read the full article to discover highlights on the CNS-penetration of highly polar compounds and how particle size can be key to oral bioavailability

To select April’s Molecules of the Month, our team evaluated hundreds of molecules from thousands of papers, press releases, conference presentations, and other materials. Here we’ve curated a roundup of more than 60 additional molecules that caught our interest from April, along with highlights we found most notable.

In April 2024, patent disclosures continued to highlight the swift progress in targeting key therapeutic areas. The Drug Hunter team has carefully compiled a searchable database containing over 200 patents relevant to drug discovery. This resource is enhanced with detailed annotations and highlights some of the most promising molecules and targets, such as GPR84 antagonists, brain-penetrant TYK2 inhibitors, and tricyclic urea JAK2 V617F inhibitors, among others. This compilation serves as a valuable tool for drug hunters to stay abreast of the latest trends in drug discovery.

In the aftermath of the thalidomide tragedy, the FDA advised excluding females in the childbearing age from early-stage clinical trials. However, this policy resulted in the prolonged underrepresentation of women in clinical research, limiting knowledge about how drugs affect genders differently. Recent policy changes, including the NIH's emphasis on considering sex as a biological variable, aim to reduce these disparities by promoting more diverse clinical trial participation. This article explores the current landscape of endometriosis therapies and how it relates to women’s healthcare.

TNG348 is a synthetic lethal inhibitor of USP1 by Tango Therapeutics. Inhibiting USP1 disrupts DNA repair and replication mechanisms leading to the selective death of BRCA1/2-mutant cancer cells. Despite the clinical benefit of PARPi in treating BRCA-mutated or HRD+ tumors, some patients exhibit an inadequate response or develop resistance. USP1 inhibitors may hold promise in meeting this unmet clinical demand. This case study highlights USP1 as a synthetic lethal target, the current competitive landscape, how the Tango team overcame high microsomal clearance and hERG liabilities, and more.

There has been substantial interest in the development of screening methods capable of surveying a wider sample of chemical space and larger numbers of compounds. Over the past two decades, DEL technology has evolved into a broadly utilized and validated platform in drug discovery, yielding diverse hits for a wide range of biologically relevant targets. Read the full review for a historical and technical overview of DEL technology, including how libraries are prepared and screened, a comparison to other HTS methods, and examples of successful applications in drug discovery.

This article contains a pharmacokinetics reference table ("PK cheat sheet") with common cross-species physiological parameters relevant to PK, including animal size, liver blood flow, kidney blood flow, and body volumes. When interpreting compound pharmacokinetic (PK) data, it's helpful to have reference values to compare experimental data to [...]

AstraZeneca has joined the race to gain approval for a first-in-class, orally bioavailable selective inhibitor of CDK2 with AZD8421, which was recently disclosed at the AACR San Diego 2024 “New Drugs on the Horizon” series. CDK2-selective inhibitors are a hot area right now, with their promise to overcome the resistance against approved CDK4/6 inhibitors. Read the full case study to learn about the CDK2-selective competitive landscape, the structural and kinetic data which underpin AZD8421’s CDK-selectivity and the preclinical activity data which has propelled it into the clinic.

In April, Novartis disclosed their clinical YAP/TAZ-TEAD PPI inhibitor and WRN helicase inhibitor, both of which are being evaluated in Ph. I trials. Cerevel’s potential first-in-class, selective partial agonist of the D1/D5 dopamine receptors for Parkinson’s disease and Revolution Medicines’ noncovalent tri-complex molecular glue that inhibits a wide range of RAS(ON) isoforms, including KRAS, NRAS and HRAS mutants as well as wild type are also featured this month. Additional molecules we found notable from April include a heterobifunctional STAT3 degrader from Kymera Therapeutics and Tango Th...

BLU-222 is a potential first-in-class, orally bioavailable selective inhibitor of CDK2 discovered and currently in development by Blueprint Medicines for the treatment of advanced solid tumors. Read the full case study to learn about the competitive landscape of CDK inhibitors, the discovery story enabled by the DiscoveRx KINOMEscan screening platform, how exquisite kinome selectivity can be achieved despite ~100% active site sequence similarity between CDK1/2, how this molecule can potentially treat CCNE1-amplified and CDK4/6i-resistant tumor models, interim clinical data, and more.

PRMT5 is an epigenetic “synthetic lethality” target that has attracted much attention among drug hunters. The first generation of PRMT5 inhibitors was limited by systemic toxicities resulting in a cooling of industry interest, until the recent identification of tumor-specific inhibitors. These second-generation compounds target the MTA:PRMT5 complex in MTAP-deleted cancers—15% of all tumors—leading to a revival of the target. Read on to find out which companies are prevailing in the search for a first-in-class PRMT5 inhibitor and how their clinical compounds differentiate.

In April 2024, there were promising examples of drug repurposing, significant clinical and regulatory milestones for therapies aimed at rare and pediatric diseases, the initiation of a rolling NDA submission for suzetrigine, substantial billion-dollar acquisitions, and positive trial results were reported for both a D1/D5 receptor agonist and a PARP1 inhibitor. However, the industry also had setbacks as demonstrated by the failed clinical trials for an MNK inhibitor and an NMDA receptor modulator. In case you missed anything, here’s a recap of the most notable news highlights from April 2024!

Zuranolone (ZURZUVAE™) is an oral positive allosteric modulator of CNS GABA signaling developed by Sage Therapeutics, in collaboration with Biogen, which was approved in August 2023 by the FDA for the treatment of postpartum depression (PPD). In 2019 Sage had received approval for brexanolone (ZULRESSO™), an IV formulation of the endogenous GABA PAM neurosteroid hormone for PPD, but an oral drug is expected to greatly increase access to treatment. Zuranolone was also investigated for major depressive disorder, although the FDA declined to extend approval for this indication.

M4205 (IDRX-42) is a highly selective type II receptor tyrosine kinase inhibitor of KIT, discovered by Merck KGaA and currently being developed by IDRx. The molecule is a notable example of kinase selectivity achieved with a non-classical hinge binder. M4205 (IDRX-42) has received an Orphan Drug designation and is currently being evaluated in a Ph. I/Ib FIH trial for GIST, one of the most common mesenchymal neoplasms in the GI tract.

SGR-1505, the first in-house clinical compound developed at Schrödinger, is an oral, allosteric MALT1 inhibitor currently in the clinic for the treatment of mature B cell malignancies. The discovery effort, disclosed at the ACS Spring 2024 meeting, was completed in an impressive 10 months, starting from a published scaffold. SGR-1505 demonstrated preclinical single-agent and combination activity as well as inducing resensitization in BTK and BCL-2 inhibitor-resistant tumors. The compound is currently progressing in a Ph. I trial in patients with mature B cell malignancies.