| Description |
Mecasermin rinfabate is approved for severe primary insulin-like growth factor (IGF) deficiency or in patients with GH gene deletion who have developed antibodies to growth hormone (GH)[A176020]. Mecasermin rinfabate is similar to [DB01277] in that both drugs contain recombinant DNA origin insulin-like growth factor 1 (IGF-1). Mecasermin rinfabate however, is already bound to recombinant DNA origin insulin-like growth factor binding protein 3 (IGFBP-3)[A12605]. The binding of IGF-1 to IGFBP-3 is said to extend the half life and reduce the clearance of IGF-1 in patients with growth hormone resistant syndromes and low levels of IGFBP-3 though this may represent <500 patients worldwide[A176065].
Mecasermin rinfabate manufactured by Insmed Incorporated under the brand name Iplex was approved by the FDA in 2005[L5722]. In 2007 Insmed withdrew their application for a marketing authorization with The European Medicines Agency[F4075].
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