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			 Two doses of the drug, tofacitinib, maintained the 
			treatment effect in patients suffering from moderate-to-severe 
			chronic plaque psoriasis, the company said. 
 The trial data showed that patients who stayed on the drug 
			maintained the treatment effect and, among those who stopped 
			therapy, some patients were able to regain the original treatment 
			effect when given tofacitinib, Pfizer said.
 
 (Reporting by Esha Dey in Bangalore; Editing by Savio D'Souza)
 
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