XLRN - Acceleron Pharma Inc. 2021 Q1 - Results - Earnings Call Presentation May, 08 2021 02:55 AM Acceleron Pharma Inc. The following slide deck was published by Acceleron Pharma Inc. in conjunction with their 2021 Q1 earnings call. For further details see: Acceleron Pharma Inc. 2021 Q1 - Results - Earnings Call Presentation