Long-term effectiveness of growth hormone therapy in children born small for gestational age: An analysis of LG growth study data

Hae Sang Lee, Change Dae Kum, Jung Gi Rho, Jin Soon Hwang, Hae Sang Lee, Change Dae Kum, Jung Gi Rho, Jin Soon Hwang

Abstract

Purpose: Growth hormone (GH) treatment has been used to improve growth in short children who were born small for gestational age (SGA). The aim of this study was to investigate the long-term efficacy of GH treatment in these children.

Methods: Data from a multicenter observational clinical trial (ClinicalTrials.gov NCT01604395, LG growth study) were analyzed for growth outcome and prediction model in response to GH treatment. One hundred fifty-two children born SGA were included.

Results: The mean age of patients born SGA was 7.13 ± 2.59 years. Height standard deviation score (SDS) in patients born SGA increased from -2.55 ± 0.49 before starting treatment to -1.13 ± 0.76 after 3 years of GH treatment. Of the 152 patients with SGA, 48 who remained prepubertal during treatment used model development. The equation describing the predicted height velocity during 1st year of GH treatment is as follows: the predictive height velocity (cm) = 10.95 + [1.12 x Height SDS at initial treatment (score)] + [0.03 x GH dose (ug/kg/day)] + [0.30 x TH SDS at initial treatment (score)] + [0.05 x age (year)] + [0.15 x Weight SDS at initial treatment (score)] ± 1.51 cm.

Conclusions: GH treatment improved growth outcome in short children born SGA. We also developed a prediction model that is potentially useful in determining the optimal growth outcome for each child born SGA.

Trial registration: ClinicalTrials.gov Identifier: NCT01604395.

Conflict of interest statement

The authors have read the journal’s policy and have the following competing interests: HSL is a member of the Observational Study Monitoring Board of LG Growth Study (LGS) for LG Chem Corporation. JSH is a member of the LGS Steering Committee for LG Chem Corporation. There are no patents, products in development or marketed products associated with this research to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Figures

Fig 1. Flow chart of study process.
Fig 1. Flow chart of study process.
Fig 2. Change in height SDS and…
Fig 2. Change in height SDS and growth velocity before and after treatment with GH in children with SGA.
* P

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