XLRN - Acceleron Pharma Inc. 2021 Q2 - Results - Earnings Call Presentation August, 06 2021 10:36 AM Acceleron Pharma Inc. The following slide deck was published by Acceleron Pharma Inc. in conjunction with their 2021 Q2 earnings call. For further details see: Acceleron Pharma Inc. 2021 Q2 - Results - Earnings Call Presentation