More evidence of big pharma’s interest in type 1 diabetes (T1D) arose as Eli Lilly and Co. disclosed its plan to buy encapsulated-cell-therapy collaborator Sigilon Therapeutics Inc., bringing aboard SIG-002, the early-stage drug on which the pair has been working since 2018. The news blasted upward shares of Cambridge, Mass.-based Sigilon (NASDAQ:SGTX), which closed June 29 at $21.15, up $17.24, or 441%.