Additional Relevant Details  Rigel Pharmaceuticals, Inc. today announced it has completed enrollment for both studies in the FIT Phase 3 clinical program of fostamatinib, its oral spleen tyrosine kinase (SYK) inhibitor, in immune thromboycytopenic purpura (ITP). The first study in this program completed enrollment at the end of January and the second study has now completed enrollment. The results from the first study are expected in the middle of 2016, with the results for the second study expected shortly thereafter.