3 years ago

In vivo and in vitro palatability testing of a new paediatric formulation of valaciclovir

Adilia Warris, Riet Strik-Albers, Laura I. Immohr, David M. Burger, Anton F.J. Haan, Arjan C. Lankester, Miriam Pein-Hackelbusch, Michiel Flier, Gertrude G. Zeinstra, Jaap Jan Boelens, Diane E.T. Bastiaans
Aim The palatability of a new paediatric formulation of valaciclovir was assessed in children and their parents: non-inferiority of the new paediatric formulation (test formulation) compared to the reference formulation was investigated. Methods In vivo palatability testing was performed in a randomized, two-period, multicentre, cross-over study. Children and their parents scored the liking of the new paediatric valaciclovir formulation and the reference formulation on a 100 mm visual analogue scale (VAS). To support formulation development and palatability testing, electronic tongue measurements were applied. Results The electronic tongue measurement indicated taste-masking capabilities for three different formulations in the developmental phase. A glycerol-based formulation was further tested and compared to the reference formulation prepared out of crushed and suspended tablets. The mean difference (95%CI) in VAS scores between both formulations, as indicated by the children (n=20), was 2.4 (-8.5, 13) mm, in favour of the new paediatric valaciclovir formulation. The mean (95%CI) difference in VAS scores indicated by the parents (n=20) was -0.9 (-12, 9.8) mm. Conclusion The palatability of the new paediatric valaciclovir formulation was considered non-inferior to the reference formulation prepared out of crushed tablets. We were able to optimize the study design and number of children to be included in the palatability testing by using electronic tongue measurements.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/bcp.13396

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