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pharmaceutical companies

The thermostability of the RTS,S/AS01 malaria vaccine can be increased by co-lyophilizing RTS,S and AS01

June 9, 2020 - 16:05 -- Open Access
Author(s): 
Juliette Fortpied, Sylvie Collignon, Nicolas Moniotte, Frédéric Renaud, Babak Bayat and Dominique Lemoine
Reference: 
Malaria Journal 2020 19:202, 8 June 2020

Developing thermostable vaccines is a challenge for pharmaceutical companies due to the inherent instability of biological molecules in aqueous solution. The problem is even more stringent in regions subjected to high temperatures in which protective cold chain is difficult to maintain due to a lack of infrastructure. Here, a simple, cost-effective solution to increase the thermostability of the malaria candidate vaccine RTS,S/AS01 is described. This vaccine currently needs to be stored between 2 and 8  °C due to the sensitivity of liquid AS01 to higher temperatures. The strategy was to increase thermostability by co-lyophilizing the RTS,S antigen and AS01.

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