Table 1

Linear growth response of children with Laron syndrome treated by means of insulin-like growth factor 1 (IGF-1)

AuthorsYearRef.NAt startGrowth velocity (cm/year) Year of treatment
Age range (years)BA (years)Ht SDS (m)IGF-1 dose (μg/kg/day)01st2nd3rd
Growth velocity values are mean (SD).
*The younger children had a growth velocity of 5.5 and 6.5 cm/year.
BA, bone age; b.i.d., twice daily; CA, chronological age; i.d., once daily; Ht SDS, height standard deviation score.
(n = 26)(n = 18)
Ranke et al1995 61 313.7–191.8–13.3−6.540–120 b.i.d.3.9 (1.8)8.5 (2.1)6.4 (2.2)
(n = 5)(n = 5)(n = 1)
Backeljauw et al1996 62 52–110.3–6.8−5.680–120 b.i.d.4.09.36.26.2
(n = 9)(n = 6)(n = 5)
Klinger and Laron1995 63 90.5–140.2–11−5.6150–200 i.d4.7 (1.3)8.2 (0.8)6 (1.3)4.8 (1.3)*
(n = 15)(n = 15)(n = 6)
Guevarra-Aguirre et al1997 64 153.1–174.5–9.3120 b.i.d.3.4 (1.4)8.8 (11)6.4 (1.1)5.7 (1.4)
(n = 8)(n = 8)
Guevarra-Aguire et al 64 880 b.i.d.3.0 (1.8)9.1 (2.2)5.6 (2.1)