Details

Autor(en) / Beteiligte

• O'Neill, Paul M
• Amewu, Richard K
• Charman, Susan A
• Sabbani, Sunil
• Gnädig, Nina F
• Straimer, Judith
• Fidock, David A
• Shore, Emma R
• Roberts, Natalie L
• Wong, Michael H-L
• Hong, W David
• Pidathala, Chandrakala
• Riley, Chris
• Murphy, Ben
• Aljayyoussi, Ghaith
• Gamo, Francisco Javier
• Sanz, Laura
• Rodrigues, Janneth
• Cortes, Carolina Gonzalez
• Herreros, Esperanza
• Angulo-Barturén, Iñigo
• Jiménez-Díaz, María Belén
• Bazaga, Santiago Ferrer
• Martínez-Martínez, María Santos
• Campo, Brice
• Sharma, Raman
• Ryan, Eileen
• Shackleford, David M
• Campbell, Simon
• Smith, Dennis A
• Wirjanata, Grennady
• Noviyanti, Rintis
• Price, Ric N
• Marfurt, Jutta
• Palmer, Michael J
• Copple, Ian M
• Mercer, Amy E
• Ruecker, Andrea
• Delves, Michael J
• Sinden, Robert E
• Siegl, Peter
• Davies, Jill
• Rochford, Rosemary
• Kocken, Clemens H M
• Zeeman, Anne-Marie
• Nixon, Gemma L
• Biagini, Giancarlo A
• Ward, Stephen A

Titel

A tetraoxane-based antimalarial drug candidate that overcomes PfK13-C580Y dependent artemisinin resistance

Ist Teil von

• Nature communications, 2017-05, Vol.8 (1), p.15159-10, Article 15159

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2017

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• K13 gene mutations are a primary marker of artemisinin resistance in Plasmodium falciparum malaria that threatens the long-term clinical utility of artemisinin-based combination therapies, the cornerstone of modern day malaria treatment. Here we describe a multinational drug discovery programme that has delivered a synthetic tetraoxane-based molecule, E209, which meets key requirements of the Medicines for Malaria Venture drug candidate profiles. E209 has potent nanomolar inhibitory activity against multiple strains of P. falciparum and P. vivax in vitro, is efficacious against P. falciparum in in vivo rodent models, produces parasite reduction ratios equivalent to dihydroartemisinin and has pharmacokinetic and pharmacodynamic characteristics compatible with a single-dose cure. In vitro studies with transgenic parasites expressing variant forms of K13 show no cross-resistance with the C580Y mutation, the primary variant observed in Southeast Asia. E209 is a superior next generation endoperoxide with combined pharmacokinetic and pharmacodynamic features that overcome the liabilities of artemisinin derivatives.