UKMi Q&A xx - SPS

26%, sildenafil 50mg, p=0.04 vs. placebo. 29%, sildenafil 100mg, p=0.03 vs. placebo. 4%, placebo Low overall response rate suggested lack of treatment effect and resulted in stopping enrolment early. No dose titration or the use of on-demand sildenafil was allowed. ................
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