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warnings and cautions
5 WARNINGS AND PRECAUTIONS Pulmonary edema in patients with pulmonary veno-occlusive disease. If confirmed, discontinue treatment. ( 5.1 ) 5.1 Pulmonary Edema with Pulmonary Veno-Occlusive Disease Should signs of pulmonary edema occur, consider the possibility of associated pulmonary veno-occlusive disease. If confirmed, discontinue selexipag.
6 ADVERSE REACTIONS Adverse reactions occurring more frequently (≥5%) on selexipag compared to placebo are headache, diarrhea, jaw pain, nausea, myalgia, vomiting, pain in extremity, and flushing. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Zydus Pharmaceuticals (USA) Inc. at 1-877-993-8779 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The safety of selexipag tablets has been evaluated in a long-term, placebo-controlled study enrolling 1,156 patients with symptomatic PAH (GRIPHON study) [see Clinical Studies ( 14 )] . The exposure to selexipag in this trial was up to 4.2 years with median duration of exposure of 1.4 years. Table 1 presents adverse reactions more frequent on selexipag tablets than on placebo by ≥3%. Table 1 Adverse Reactions Adverse Reaction Selexipag tablets N=575 Placebo N=577 Headache 65% 32% Diarrhea 42% 18% Jaw pain 26% 6% Nausea 33% 18% Myalgia 16% 6% Vomiting 18% 9% Pain in extremity 17% 8% Flushing 12% 5% Arthralgia 11% 8% Anemia 8% 5% Decreased appetite 6% 3% Rash 11% 8% These adverse reactions are more frequent during the dose titration phase. Hyperthyroidism was observed in 1% (n=8) of patients on selexipag tablets and in none of the patients on placebo. Laboratory Test Abnormalities Hemoglobin In a Phase 3 placebo-controlled study in patients with PAH, mean absolute changes in hemoglobin at regular visits compared to baseline ranged from −0.34 to −0.02 g/dL in the selexipag group compared to −0.05 to 0.25 g/dL in the placebo group. A decrease in hemoglobin concentration to below 10 g/dL was reported in 8.6% of patients treated with selexipag tablets and 5 % of placebo-treated patients. Thyroid Function Tests In a Phase 3 placebo-controlled study in patients with PAH, a reduction (up to −0.3 MU/L from a baseline median of 2.5 MU/L) in median thyroid-stimulating hormone (TSH) was observed at most visits in the selexipag group. In the placebo group, little change in median values was apparent. There were no mean changes in triiodothyronine or thyroxine in either group. 6.2 Postmarketing Experience The following adverse reactions have been identified during post approval use of selexipag. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Vascular disorders: Symptomatic hypotension