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Acceleron Pharma Reports Positive Topline Results From PULSAR Trial

Acceleron Pharma Inc. (XLRN) announced that the PULSAR Phase 2 trial of sotatercept met its primary and key secondary endpoints in patients with pulmonary arterial
hypertension. In the trial, sotatercept showed a statistically significant reduction in pulmonary vascular resistance, the trial's primary endpoint, at week 24 versus placebo.

The company plans to present a detailed review of the topline results from the
PULSAR Phase 2 trial of sotatercept at a medical conference later in the current year.

Shares of Acceleron Pharma Inc. were up nearly 70% after hours.

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