Title
Somatropin Treatment to Final Height in Turner Syndrome
Humatrope Treatment to Final Height in Turner's Syndrome
Phase
Phase 3Lead Sponsor
Eli LillyStudy Type
InterventionalStatus
Completed Results PostedIndication/Condition
Turner SyndromeIntervention/Treatment
somatropin ethinyl estradiol medroxyprogesterone ...Study Participants
154A randomized, controlled trial in girls with Turner syndrome at least 7 years old and younger than 13 at study entry, to determine the efficacy and safety of Humatrope (somatropin) treatment in promoting linear growth to final height.
A randomized, controlled trial of Humatrope (somatropin) treatment in girls with Turner syndrome at least 7 years old and younger than 13 at study entry.
Core study objectives are to determine the efficacy of Humatrope in promoting linear growth to final height in girls with Turner syndrome, and to assess the safety of this treatment. Core study completion criteria (protocol final height) are that the patient has both a height velocity < 2 cm per year and a bone age of 14 years or greater.
Addendum 1 provides the option of Humatrope treatment to patients who were randomized to the Control arm of the Core study and who discontinued from the study on or after December 19, 1997.
Addendum 2 objectives are: 1) to collect true final height data; 2) to evaluate hearing, tympanic membrane function and other specific areas of interest with respect to the safety of growth hormone therapy in Turner syndrome; 3) to evaluate pancreatic beta cell function (glucose metabolism) in patients previously enrolled in the Core study.
Addendum 3 objective is to determine the parental origin of the retained X chromosome of an appropriate subset of patients currently or previously enrolled in the Core study, and to determine whether this parental origin holds any predictive value for spontaneous growth or for response to growth hormone therapy.
0.05 mg/kg/dose by subcutaneous injection 6 times per week, until Core study completion criteria are met (protocol final height).
escalating doses 2.5-20.0 mcg tablets daily after age 13 and at least one year on study, continuing until Core study completion criteria are met.
10 mg tablets, ten days monthly, after age 15, continuing until Core study completion criteria are met.
Control arm; untreated with Humatrope. Ethinyl estradiol (escalating doses to 20 mcg daily) after age 13, and medroxyprogesterone acetate (10 mg tablets ten days monthly) after age 15. Subject continues until Core study completion criteria are met (protocol final height).
Humatrope (0.05 mg/kg/dose) by subcutaneous injection 6 times per week. Ethinyl estradiol (escalating doses to 20 mcg daily) after age 13, and medroxyprogesterone acetate (10 mg tablets ten days monthly) after age 15. Subject continues until Core study completion criteria are met (protocol final height).
Inclusion Criteria: girl with Turner syndrome prepubertal, Tanner stage I breast height velocity less than 6 cm/year and height less than or equal to the tenth percentile for sex and age in general population at least 6 months (preferably 12 months) of accurate height measurements available for calculation of pre-study height velocity if thyroxine deficient, to have received replacement therapy, and for six months prior to enrollment have had normal thyroid function tests Exclusion Criteria: prior treatment with growth hormone presence of a Y component in karyotype with gonads in situ diabetes mellitus
| Event Type | Organ System | Event Term | Treated-As-Randomized Control | Treated-As-Randomized Humatrope |
|---|
SDS report the number of standard deviations from the mean for age and sex for an individual measurement (normal range: -2 to +2 SDS). Height SDS [NCHS] uses the NCHS US general female population reference height values for age (Kuczmarski RJ et al. 2000) as the population mean and standard deviation. Calculation of Height SDS is provided in Height SDS [Lyon] description (Baseline). Since data reported by Kuczmarski RJ et al provides US general female population standards, values of Height SDS [NCHS] for untreated patients with Turner syndrome tend to be below zero e.g, -2.0 to -4.0 SDS.
Value analyzed is change from baseline to the most mature height measurement available. The terms Standard Deviation Score (SDS) and National Center for Health Statistics (NCHS) were defined in baseline characteristics. Greater height SDS values indicate greater height; positive values of change from baseline indicate increased height.
Most mature measurement available, at or after attainment of Final Height.
Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Sensorineural Hearing Loss (SNHL)=air conduction threshold >20 dB HL and air-bone gap ≤10 dB HL; Conductive Hearing Loss (CHL)= air conduction threshold >20 dB HL, bone conduction threshold ≤20 dB HL and air-bone gap >10 dB HL; Mixed Hearing Loss (MHL) = evidence of SNHL as defined above and CHL as defined above, in the same ear; Unspecified Hearing Loss (UHL)= abnormal hearing with none of SNHL, CHL, or MHL present.
Change from core study baseline to addendum 2 maximum.
Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Indicates if patient had any measured value exceeding threshold of normality at any visit during addendum. Abnormal Fasting Glucose=Fasting Glucose >=100 milligrams per deciliter (mg/dL).
Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Indicates if patient had any measured value exceeding threshold of normality at any visit during addendum. Abnormal Fasting Insulin = Fasting Insulin >=35 micro International Units per milliliter (uIU/mL).
Minimum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Indicates if patient had any measured value below threshold of normality at any visit during addendum. Abnormal Fasting Glucose/Insulin Ratio = Fasting Glucose/Insulin Ratio <=4.5 milligrams per 10^-4 Units (mg/10^-4U).
Change from core study baseline to addendum 2 maximum.
Indicates if patient had any measured value exceeding threshold of normality at any visit during addendum. Abnormal Glycosylated Hemoglobin = HbA1c ≥6.8% (up until 11-May-1998); and then HbA1c ≥6.1% (from 19-May-1998 onwards).
Value analyzed is change from baseline to the most mature height measurement available. The terms Standard Deviation Score (SDS) and National Center for Health Statistics (NCHS) were defined in baseline characteristics. Greater height SDS values indicate greater height; positive values of change from baseline indicate increased height.
