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Netupitant and Palonosetron — Competitive Intelligence Brief
Target snapshot
Netupitant and Palonosetron (Netupitant and Palonosetron) — Helsinn Healthcare SA. 12.1 Mechanism of Action Netupitant is a selective antagonist of human substance P/neurokinin 1 (NK-1) receptors. Palonosetron is a 5-HT 3 receptor antagonist with a strong binding affinity for this receptor and little or no affinity for other receptors. Cancer chemotherapy may be associated with a high incidence of nausea and vomiting, particularly when certain agents, such as cisplatin, are used. 5-HT 3 receptors are located on the nerve terminals of the vagus in the periphery and centrally in the chemoreceptor trigger zone of the area postrema. Chemotherapeutic agents produce nausea and vomiting by stimulating the release of serotonin from the enterochromaffin cells of the small intestine. Serotonin then activates 5-HT 3 receptors located on vagal afferents to initiate the vomiting reflex. The development of acute emesis is known to depend on serotonin and its 5-HT 3 receptors have been demonstrated to selectively stimulate the emetic response. Delayed emesis has been largely associated with the activation of tachykinin family neurokinin 1 (NK-1) receptors (broadly distributed in the central and peripheral nervous systems) by substance P. As shown in in vitro and in vivo studies, netupitant inhibits substance P mediated responses.
Comparator set (3 drugs)
| Drug | Generic | Sponsor | Phase | Class | Target | Approval / PDUFA |
|---|---|---|---|---|---|---|
| Netupitant and Palonosetron TARGET | Netupitant and Palonosetron | Helsinn Healthcare SA | discontinued | Substance P/Neurokinin-1 Receptor Antagonist [EPC] | ||
| Varubi | ROLAPITANT | Tersera | marketed | Substance P/Neurokinin-1 Receptor Antagonist | Substance-P receptor | 2015-01-01 |
| Emend | APREPITANT | Merck & Co. | marketed | Substance P/Neurokinin-1 Receptor Antagonist [EPC] | Substance-P receptor | 2003-01-01 |
| Emend | FOSAPREPITANT | marketed | Substance P/Neurokinin-1 Receptor Antagonist | Substance-P receptor | 2003-01-01 |
Recent regulatory actions (last 90 days)
Upcoming PDUFA dates (next 180 days)
Patent timeline (forward window)
Sponsor landscape (Substance P/Neurokinin-1 Receptor Antagonist [EPC] class)
- Helsinn Healthcare SA · 1 drug in this class
- Merck & Co. · 1 drug in this class
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Cite this brief
Drug Landscape (2026). Netupitant and Palonosetron — Competitive Intelligence Brief. https://druglandscape.com/ci/netupitant-and-palonosetron. Accessed 2026-05-16.
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