Wigen Biomedicine Technology (Shanghai) Co. Ltd. has patented poly(ADP-ribose) polymerase (PARP) inhibitors, particularly PARP-1, reported to be useful for the treatment of cancer.
GSK plc said it will restrict the second-line maintenance indication for ovarian cancer drug Zejula (niraparib) to only patients with deleterious or suspected germline BRCA mutations, at the request of the FDA, in a sign that U.S. regulators aren’t going to relax scrutiny on PARP inhibitors any time soon.
GSK plc said it will restrict the second-line maintenance indication for ovarian cancer drug Zejula (niraparib) to only patients with deleterious or suspected germline BRCA mutations, at the request of the FDA, in a sign that U.S. regulators aren’t going to relax scrutiny on PARP inhibitors any time soon.
Shares in Clovis Oncology Inc. (NASDAQ:CLVS) tumbled more than 71% after it warned it is facing bankruptcy with barely enough cash left to last until the end of 2022, debts of more than $3 billion, and dwindling revenues from its only approved cancer drug, Rubraca (rucaparib).
Rhizen Pharmaceuticals SA and Incozen Therapeutics Pvt. Ltd. have disclosed salts of NAD+ ADP-ribosyltransferase poly [ADP-ribose] polymerase (PARP) inhibitors reported to be useful for the treatment of cancer, bone, cardiovascular, immunological, inflammatory and respiratory disorders, metabolic diseases and thrombosis.
A Mayo Clinic study demonstrated how the deficiency of the enzyme CDK12 or its regulation by cyclin K causes the expression of mutations related to resistance to endocrine therapy in prostate cancer. Prostate tumors with CDK12 deficiency are more aggressive, recurrent, produce metastases and are associated with castration-resistant prostate cancer (CRPC). CDK12 deficiency impairs DNA repair and increases genomic instability, causing an effect known as homologous recombination deficiency or BRCAness.
Merck KGaA has struck a collaboration and option-to-license deal with Nerviano Medical Sciences Srl centered around NMS-293, a next-generation PARP-1 inhibitor already in early clinical development for brain tumors. Merck is making a play for the poly (ADP-ribose) polymerase (PARP) inhibitor market, first opened up in December 2014 by Astrazeneca plc, when Lynparza (olaparib) was first approved in advanced ovarian cancer, going on to become a blockbuster through a partnership with Merck & Co Inc.
Nodus Oncology Ltd. is set to explore new avenues of DNA damage response by targeting the chromosome next-door neighbors of tumor suppressor genes that are damaged when tumor suppressor genes are inactivated via homozygous deletion. These collaterally deleted ‘passenger genes’ play diverse functions in cell homeostasis and so present a number of molecularly targeted vulnerabilities that can provide a route to destroying cells which carry a tumor suppressor gene.
Clovis Oncology Inc. is trying to claw its way into ovarian cancer relevance against vastly larger competitors Astrazeneca plc and Glaxosmithkline plc with positive top-line phase III data from its study of PARP inhibitor Rubraca (rucaparib). The study’s monotherapy arm of Rubraca as a first-line maintenance treatment of ovarian cancer hit the primary endpoint of significantly improved investigator-assessed progression-free survival (PFS) compared to placebo. The median PFS was 20.2 months for Rubraca compared to 9.2 months for placebo in the intent-to-treat group.
