{"denoms":[{"counts":[{"groupId":"OG000","value":"0"}],"units":"Participants"}],"description":"Blood samples were to be collected at baseline (Day 1, pre-dose) and at one timepoint between Day 14 and Day 28, and isotope dilution techniques used, to measure the change from baseline in red blood cell mass following a single dose of sotatercept.","groups":[{"description":"Participants received a single 35 mg dose of sotatercept by SC injection on Day 1, Day 43, and Day 85.","id":"OG000","title":"Sotatercept"}],"populationDescription":"No data were collected for Change from Baseline in Red Blood Cell Mass Following a Single Dose of Sotatercept.","reportingStatus":"POSTED","timeFrame":"Baseline (Day 1, pre-dose) and one timepoint between Day 14 and Day 28","title":"Change From Baseline in Red Blood Cell Mass Following a Single Dose of Sotatercept","type":"PRIMARY"}