UK Stocks-Factors to watch on Friday, August 21
(Adds futures, company news)
LONDON Aug 21 (Reuters) - Britain's FTSE 100 index is seen opening lower on Friday, with futures on the index down 1.3 percent at 0645 GMT. For more on the factors affecting European stocks, please click on
* The blue-chip index dropped 0.6 percent to 6,367.89 points on Thursday, its lowest close since January.
* GLAXOSMITHKLINE - Novartis has agreed to buy all remaining rights to Ofatumumab from Britain's GlaxoSmithKline for up to $1 billion, boosting the Swiss drugmaker's stable of multiple sclerosis (MS) treatments.
* BARCLAYS - Barclays shareholders who accused the British bank in a lawsuit of inflating its stock price by manipulating the interest rate known as Libor may pursue their case as a class action, a U.S. judge ruled on Thursday.