US FDA grants standard approval of Eisai/Biogen Alzheimer’s drug

Eisai and Biogen’s Leqembi won a coveted standard approval nod from the U.S. Food and Drug Administration on Thursday, the first Alzheimer’s treatment to achieve that goal, clearing the way for wider insurance coverage of the drug.
The FDA decision marks a new milestone for a fatal disease that has eluded drugmakers’ efforts for decades. Trial data showed that the treatment slows the progression of the brain-wasting disease by 27% for patients in the earliest stages of Alzheimer’s.
The FDA also placed its strongest “boxed” safety warning on Leqembi’s label, flagging the risk of potentially dangerous brain swelling for Alzheimer’s drugs in the same class.
Leqembi is an antibody designed to remove sticky deposits of a protein called amyloid beta from the brains of Alzheimer’s patients.
Leqembi received “accelerated” FDA approval in January based on its amyloid-clearing ability, but the U.S. government’s Medicare health plan for people aged 65 and over had restricted coverage only to patients in a clinical trial.
Standard approval means that Leqembi will now be covered, although the Centers for Medicare and Medicaid Services (CMS) is linking reimbursement to patient participation in a health agency database, known as a registry. Since Alzheimer’s is a disease of aging, most U.S. patients are insured by Medicare.

The official announcement is on reuters.com!

Bioresponsive and multifunctional cyclodextrin-based non-viral nanocomplexes in cancer therapy: Building foundations for gene and drug delivery, immunotherapy and bioimaging

The interest in application of nanomaterials in the field of cancer therapy is that the drawbacks of conventional therapies, including chemoresistance, radio-resistance and lack of specific targeting of tumor cells can be solved by nanotechnology. 
The application of cyclodextrin in cancer shows an increasing trend due to the benefits of these nano complexes in improving the solubility and bioavailability of current bioactives and therapeutics for cancer. CDs are widely utilized in the delivery of drugs and genes in cancer therapy, and by targeted delivery of these therapeutics into target sites, they improve anti-proliferative and anti-cancer potential.
Great review!

See the full article at the following link!

Novel FDA Drug Approvals 2Q 2023

26 new drugs approved by the FDA’s Center for Drug Evaluation and Research (CDER) for 1H! Lots of exciting new mechanisms and modalities.

Highlights from the 2Q include –

💉 Tofersen (Qalsody), an antisense oligonucleotide indicated for the treatment of adult amyotrophic lateral sclerosis caused by SOD1 mutation.

💉 Pegunigalsidase alfa (Elfabrio), a recombinant form of human α-galactosidase-A indicated for long-term enzyme replacement therapy in patients with Fabry disease.

💊 Fezolinetant (Veozah), a selective neurokinin-3 (NK3) receptor antagonist used to treat moderate to severe vasomotor symptoms due to menopause.

👁 Perfluorohexyloctane (Miebo) is a drug used to treat dry eye disease. Check out structure! Mechanism unknown.

💉Epcoritamab (Epkinly), a bispecific CD20-directed CD3 T-cell engager used to treat relapsed or refractory diffuse large B-cell lymphoma (DLBCL) in adults.

💊 Sulbactam/durlobactam (Xacduro), a co-packaged medication used for the treatment of bacterial pneumonia caused by Acinetobacter baumannii-calcoaceticus complex. It contains sulbactam, a beta-lactam antibacterial and beta-lactamase inhibitor; and durlobactam, a beta-lactamase inhibitor.

💊 Nirmatrelvir/ritonavir (Paxlovid), a co-packaged medication used as a treatment for COVID‑19. It contains the antiviral medications nirmatrelvir and ritonavir. Nirmatrelvir is a SARS-CoV-2 main protease inhibitor while ritonavir is a HIV-1 protease inhibitor and strong CYP3A4 inhibitor.

💉Flotufolastat F-18 (Posluma), a radiopharmaceutical diagnostic agent used in PET imaging to visualize PSMA-positive lesions in men with prostate cancer with suspected metastasis or recurrence.

💊 Sotagliflozin (Inpefa), a dual SGLT1/2 inhibitor used to reduce the risk of CV, hospitalization for heart failure, and urgent heart failure visit in adults with heart failure or type 2 diabetes mellitus, chronic kidney disease, and other cardiovascular risk factors

💉Glofitamab (Columvi), a bispecific mAb directed against CD20 and CD3 which is used for the treatment of relapsed or refractory diffuse large B-cell lymphoma.

💊 Ritlecitinib (Litfulo), a dual JAK3/TEC kinase family inhibitor used to treat severe alopecia areata in adults and adolescents 12 years and older.

💉Rozanolixizumab (Rystiggo), a humanized mAb targeting the human neonatal Fc receptor (FcRn) used to treat generalized myasthenia gravis.

💉Somatrogon (Ngenla), a long-acting recombinant human growth hormone used as the long-term treatment of pediatric patients who have growth failure due to growth hormone deficiency.

Again, a fascinating collection from Chris de Savi!

Curated Dataset of Association Constants between a Cyclodextrin and a Guest for Machine Learning

Today’s cyclodextrin:
It is a very modern and practical idea. This paper collects association constant between a cyclodextrin and a guest molecule to use in machine learning techniques to predict new association constants possible. This process can save time, workload and requires samples of both molecules in future studies.
So trivial, still one of a kind idea and huge work behind. Congrats to Gökhan TahılDaniel Le BerreEric MONFLIERAdlane Sayede and Sébastien Tilloy for this modern work!

Curated Dataset of Association Constants between a Cyclodextrin and a Guest for Machine Learning by Gökhan Tahıl, Fabien Delorme, Daniel Le Berre, Eric Monflier, Adlane Sayede, Sebastien Tilloy :: SSRN

Glycosylation shapes the efficacy and safety of diverse protein, gene and cell therapies

Glycosylation, a near-universal feature of this class of drugs, is a critical quality attribute that significantly influences the physical properties, safety profile and biological activity of therapeutic proteins. Optimizing protein glycosylation offers an important avenue to developing more efficacious therapies.
In this review, Nathan Lewis’s team discusses specific examples of how variations in glycan structure and glycoengineering impact the stability, safety, and clinical efficacy of protein-based drugs that are already in the market and those still in preclinical development. We also highlight the impact of glycosylation on next-generation biologics such as T cell-based cancer therapy and gene therapy.

Please see the full article in this link!

Universal Single-Step Approach to the Immobilization of Cyclodextrins in a Supercritical Medium for Capturing Drug, Dye, and Metal Nanoclusters

Today’s cyclodextrin:
Many of the wonder’s of CDs are linked with their behavior in aqueous solutions, yet often it comes in handy if you can immobilize them. Just think about analytical applications, removal of chemicals from wastewater, or binding them to the surface of medical devices.
Here we see a simple, efficient, one-step process that is ligand-free, scalable, substrate-independent, and uses minimal energy for grafting of unmodified β-CD on various oxide-based metal and semiconductor surfaces.
Sundaramurthy JayaramanYen Peng TingSrinivasan MadapusiSREENIVASA REDDY PUNIREDD et al.

Please read the full article here!

2-Hydroxypropyl-β-Cyclodextrin Treatment Induces Modest Immune Activation in Healthy Rhesus Macaques

Today’s cyclodextrin:
HPβCD has recently been incorporated as a solubilizing agent in coformulations of ARVs in SIV-infected nonhuman primates. Although HPβCD has historically been considered inert, recent findings suggest that HPβCD may contribute to inflammation. The contribution of HPβCD was investigated to healthy macaque inflammation in vitro and in vivo and observed that HPβCD causes induction of sCD14 and IL-1β from myeloid cells in vitro and demonstrates that HPβCD stimulatory capacity varies by commercial source.

Please follow this link to the full article!