Alongside Johnson & Johnson Development Corporation in Astute Medical's $13m B extension are venture capital firms Domain Associates, Delphi Ventures and De Novo Ventures.

Astute Medical, a US-based provider of laboratory tests, has extended its series B round by $13m to its existing investment consortium that includes Johnson & Jonson’s corporate venturing unit.

Alongside Johnson & Johnson Development Corporation in the B extension are venture capital firms Domain Associates, Delphi Ventures and De Novo Ventures.

Astute had initially raised $26.5m in its B round in May.

Founded in 2007 by Christopher Hibberd and Paul McPherson, former managers at diagnostics company Biosite before its…