CAS number  YesY
Jmol-3D images Image 1
Molecular formula C19H23NO3
Molar mass 313.39 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)

Mavoglurant (AFQ056) is an experimental drug candidate for the treatment of fragile X syndrome.[1] It exerts its effect as an antagonist of the metabotropic glutamate receptor 5 (mGLU5).[2]

Mavoglurant is under development by Novartis and is currently in Phase II and Phase III clinical trials.[1][3] Phase IIb/III dose finding and evaluation trials for fragile X-syndrome have been discontinued by the end of 2014. [4] Otherwise, it would have been the first drug to treat the underlying disorder instead of the symptoms of fragile X syndrome.[5]
Mavoglurant is also in Phase II clinical trials for Levodopa-induced dyskinesia.[6][7]
In 2007, Norvartis had conducted a clinical study to assess its ability of reducing cigarette smoking, but no results had been published up till now.[8]
Currently Novartis is conducting a clinical trial with this drug on obsessive compulsive disorder.[9]

Novartis discontinued development of mavoglurant for fragile X syndrome in April 2014 following disappointing trial results.[10]

See also


  1. ^ a b P. Cole (2012). "Mavoglurant". Drugs of the Future 37 (1): 7–12.  
  2. ^ Levenga, J; Hayashi, S; De Vrij, FM; Koekkoek, SK; Van Der Linde, HC; Nieuwenhuizen, I; Song, C; Buijsen, RA et al. (2011). "AFQ056, a new mGluR5 antagonist for treatment of fragile X syndrome". Neurobiology of disease 42 (3): 311–7.  
  3. ^ Jacquemont, S.; Curie, A.; Des Portes, V.; Torrioli, M. G.; Berry-Kravis, E.; Hagerman, R. J.; Ramos, F. J.; Cornish, K. et al. (2011). "Epigenetic Modification of the FMR1 Gene in Fragile X Syndrome is Associated with Differential Response to the mGluR5 Antagonist AFQ056". Science Translational Medicine 3 (64): 64ra1.  
  4. ^
  5. ^ "AFQ056 drug improves symptoms in Fragile X patients: Study". January 9, 2011. 
  6. ^ "Mavoglurant (AFQ056) in combination with increased levodopa dosages in Parkinson's disease patients.". Int J Neurosci. Sep 2013.  
  7. ^ "NHI Clinical trials". 
  8. ^ "Effects of AFQ056 and Nicotine in Reducing Cigarette Smoking". 
  9. ^ "Study to Evaluate the Effect of AFQ056 in Obsessive Compulsive Disorder (OCD)". 
  10. ^ FRAXA (2014). "Novartis Discontinues Development of mavoglurant (AFQ056) for Fragile X Syndrome".