Det aktive stof i IPLEX, mecasermin rinfabat, er et dobbeltprotein bestående af to proteiner, som normalt produceres af kroppen: insulin- lignende vækstfaktor I (IGF- I) og bindingsprotein 3 for insulin- lignende vækstfaktor (IGFBP- 3).
The active substance in IPLEX, mecasermin rinfabate, is a binary protein made up of two proteins that are normally produced by the body: insulin-like growth factor I (IGF-I) and insulin-like growth factor binding protein 3 (IGFBP-3).