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Published on: January 7, 2016
Monitoring rhGH Safety: rhGH Registries, SAGhE and Future Needs
Bradley S Miller1, Ron G Rosenfeld2
1Division of Endocrinology, Department of Pediatrics, University of Minnesota Masonic Children's Hospital, Minneapolis, Minnesota, USA,
Insights
Recombinant human growth hormone (rhGH) therapy shows an excellent safety profile in children and adults, with no increased mortality risk when adjusted for birth size. Long-acting growth hormone (LAGH) offers future safety study opportunities.
Area of Science:
- Pediatric Endocrinology
- Pharmacovigilance
- Biologics Therapy
Background:
- Extensive research exists on growth hormone (GH) therapy safety in pediatric populations.
- Concerns regarding Creutzfeldt-Jacob disease transmission via pituitary-derived GH prompted rigorous safety surveillance for recombinant human GH (rhGH).
Purpose of the Study:
- To evaluate the long-term safety profile of recombinant human GH (rhGH) therapy.
- To assess potential safety concerns, including mortality risks, associated with rhGH treatment.
- To explore the potential for long-term safety studies with new long-acting growth hormone (LAGH) products.
Main Methods:
- Analysis of large Phase IV registries with over 600,000 patient-years of rhGH exposure.
- Review of long-term safety data from adult cohorts treated with GH during childhood.
- Examination of reported mortality risks and associated confounding factors.
Main Results:
- rhGH demonstrates an excellent safety profile across extensive patient data.
- Reported increased mortality risks were eliminated when corrected for small birth size.
- Cerebrovascular disease mortality risk requires further investigation due to methodological limitations in existing studies.
Conclusions:
- Recombinant human GH (rhGH) therapy is safe, with extensive data supporting its favorable risk-benefit profile.
- Continued long-term safety monitoring is crucial, especially with the introduction of novel long-acting growth hormone (LAGH) formulations.
Abstract:
The safety of growth hormone (GH) therapy in children has been studied extensively. The identification of Creutzfeldt-Jacob disease in individuals who received pituitary-derived GH led to heightened surveillance for safety issues related to recombinant human GH (rhGH). An excellent safety profile of rhGH has been demonstrated in large Phase IV registries comprising > 600,000 patient-years of rhGH exposure and long-term safety cohorts of adults treated with GH as children. Increased mortality risk has been reported but eliminated when corrected for small size at birth. Increased risk of mortality from cerebrovascular disease has been reported but interpretation of these events remains difficult due to the lack of appropriate control groups and a lack of replication of these findings in other studies. The advent of new long-acting growth hormone (LAGH) products provides an opportunity for the development of cohorts of individuals receiving LAGH replacement therapy for continued long-term safety studies.
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