Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received low dose of somatropin (Genotonorm) for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 milligram per kilogram per week (mg/kg/week), equivalent to 1.8 international units/kg/week (IU/kg/week), divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 microgram/kg/day (mcg/kg/day), equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 centimeter (cm) per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.

Participants who received matching placebo for 3 years during previous study CTN 97-8129-016, received somatropin (Genotonorm) up to 0.6 mg/kg/week, equivalent to 1.8 IU/kg/week, divided in 7 daily doses subcutaneously initially for first 3 years and then somatropin (Genotonorm) 0.46 mg/kg/week, equivalent to 1.4 IU/kg/week, divided in 7 daily doses subcutaneously until the additional study drug dose evaluation visit and thereafter received somatropin (Genotonorm) 50 mcg/kg/day, equivalent to 0.35 mg/kg/week or 1.05 IU/kg/week, subcutaneously until the final height was reached or up to Year 8.5. Final height was confirmed to have been achieved if the growth velocity was less than or equal to 1.5 cm per year during the preceding 12 months and bone age was greater than or equal to 17 years for boys and 15 years for girls.