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D B Allen, P Backeljauw, M Bidlingmaier, B M K Biller, M Boguszewski, P Burman, G Butler, K Chihara, J Christiansen, S Cianfarani, P Clayton, D Clemmons, P Cohen, F Darendeliler, C Deal, D Dunger, E M Erfurth, J S Fuqua, A Grimberg, M Haymond, C Higham, K Ho, A R Hoffman, A Hokken-Koelega, G Johannsson, A Juul, J Kopchick, P Lee, M Pollak, S Radovick, L Robison, R Rosenfeld, R J Ross, L Savendahl, P Saenger, H Toft Sorensen, K Stochholm, C Strasburger, A Swerdlow and M Thorner

Recombinant human GH (rhGH) has been in use for 30 years, and over that time its safety and efficacy in children and adults has been subject to considerable scrutiny. In 2001, a statement from the GH Research Society (GRS) concluded that ‘for approved indications, GH is safe’; however, the statement highlighted a number of areas for on-going surveillance of long-term safety, including cancer risk, impact on glucose homeostasis, and use of high dose pharmacological rhGH treatment. Over the intervening years, there have been a number of publications addressing the safety of rhGH with regard to mortality, cancer and cardiovascular risk, and the need for long-term surveillance of the increasing number of adults who were treated with rhGH in childhood. Against this backdrop of interest in safety, the European Society of Paediatric Endocrinology (ESPE), the GRS, and the Pediatric Endocrine Society (PES) convened a meeting to reappraise the safety of rhGH. The ouput of the meeting is a concise position statement.

Open access

Jens Sandahl Christiansen, Philippe F Backeljauw, Martin Bidlingmaier, Beverly M K Biller, Margaret C S Boguszewski, Felipe F Casanueva, Philippe Chanson, Pierre Chatelain, Catherine S Choong, David R Clemmons, Laurie E Cohen, Pinchas Cohen, Jan Frystyk, Adda Grimberg, Yukihiro Hasegawa, Morey W Haymond, Ken Ho, Andrew R Hoffman, Jeff M P Holly, Reiko Horikawa, Charlotte Höybye, Jens Otto L Jorgensen, Gudmundur Johannsson, Anders Juul, Laurence Katznelson, John J Kopchick, K O Lee, Kuk-Wha Lee, Xiaoping Luo, Shlomo Melmed, Bradley S Miller, Madhusmita Misra, Vera Popovic, Ron G Rosenfeld, Judith Ross, Richard J Ross, Paul Saenger, Christian J Strasburger, Michael O Thorner, Haim Werner and Kevin Yuen

Objective

The Growth Hormone (GH) Research Society (GRS) convened a workshop to address important issues regarding trial design, efficacy, and safety of long-acting growth hormone preparations (LAGH).

Participants

A closed meeting of 55 international scientists with expertise in GH, including pediatric and adult endocrinologists, basic scientists, regulatory scientists, and participants from the pharmaceutical industry.

Evidence

Current literature was reviewed for gaps in knowledge. Expert opinion was used to suggest studies required to address potential safety and efficacy issues.

Consensus process

Following plenary presentations summarizing the literature, breakout groups discussed questions framed by the planning committee. Attendees reconvened after each breakout session to share group reports. A writing team compiled the breakout session reports into a draft document that was discussed and revised in an open forum on the concluding day. This was edited further and then circulated to attendees from academic institutions for review after the meeting. Participants from pharmaceutical companies did not participate in the planning, writing, or in the discussions and text revision on the final day of the workshop. Scientists from industry and regulatory agencies reviewed the manuscript to identify any factual errors.

Conclusions

LAGH compounds may represent an advance over daily GH injections because of increased convenience and differing phamacodynamic properties, providing the potential for improved adherence and outcomes. Better methods to assess adherence must be developed and validated. Long-term surveillance registries that include assessment of efficacy, cost-benefit, disease burden, quality of life, and safety are essential for understanding the impact of sustained exposure to LAGH preparations.