Study drug-related adverse events were significantly more frequent in the @ mg group than in the @ mg group ( @ % -LSB- @ -RSB- vs @ -LSB- @ -RSB- ) , difference -@ % , @ % CI -@ to -@ ; p = @ ) and significantly fewer patients with these events stopped treatment ( @ mg = @ -LSB- @ % -RSB- , @ mg = @ -LSB- @ % -RSB- , difference -@ % , @ % CI -@ to -@ ; p = @ ) .