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Drug Names(s): Ondansetron hydrochloride
Description: Zofran is a selective 5-HT3 receptor antagonist. While zofran's mechanism of action has not been fully characterized, it is not a dopamine-receptor antagonist. Serotonin receptors of the 5-HT3 type are present both peripherally on vagal nerve terminals and centrally in the chemoreceptor trigger zone of the area postrema. It is not certain whether zofran's antiemetic action in chemotherapy-induced nausea and vomiting is mediated centrally, peripherally, or in both sites. However, cytotoxic chemotherapy appears to be associated with release of serotonin from the enterochromaffin cells of the small intestine. In humans, urinary 5-HIAA (5-hydroxyindoleacetic acid) excretion increases after cisplatin administration in parallel with the onset of vomiting. The released serotonin may stimulate the vagal afferents through the 5-HT3 receptors and initiate the vomiting reflex.
GlaxoSmithKline and Novartis
In April 2014, GSK and Novartis entered into a sale agreement under which GSK has agreed to sell, upon completion of the Transaction, the rights to GSKs currently marketed oncology portfolio, related R&D activities and its AKT inhibitor currently in development as well as to grant Novartis preferred partner rights for future commercialisation of GSK oncology products for an aggregate cash consideration of $16 billion. Up to $1.5 billion of this cash consideration depends on the results of the COMBI-d trial, a Phase III study evaluating the safety and efficacy of the combination of Tafinlar (BRAF) and Mekinist (MEK) versus BRAF monotherapy in patients with unresectable or metastatic melanoma.
GSK's marketed Oncology portfolio comprises the rights to GSK's currently marketed oncology assets (Votrient, Arzerra, Promacta/Revolade, Tykerb/Tyverb, Tafinlar, Mekinist, Arranon, Hycamtin, Zofran, Argatroban and Alkeran). Also being sold to...See full deal structure in Biomedtracker
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