Of @ patients ( @ assigned tenecteplase and @ assigned alteplase ) contributing to the primary endpoint , no significant differences were noted for percentage of penumbral salvaged ( @ % -LSB- SD @ -RSB- for the tenecteplase group vs @ % -LSB- @ -RSB- for the alteplase group ; mean difference @ % -LSB- @ % CI -@ to @ -RSB- ; p = @ ) .