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Somatropin Treatment to Final Height in Turner Syndrome

Humatrope Treatment to Final Height in Turner's Syndrome

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00191113
Acronym
GDCT
Enrollment
154
Registered
2005-09-19
Start date
1989-02-28
Completion date
2007-12-31
Last updated
2010-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Turner Syndrome

Keywords

syndrome, Turner, Turner's, height, growth, growth hormone, somatropin, short stature, short, hearing, glucose metabolism

Brief summary

A 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.

Detailed description

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.

Interventions

DRUGSomatropin

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.

DRUGMedroxyprogesterone acetate

10 mg tablets, ten days monthly, after age 15, continuing until Core study completion criteria are met.

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
7 Years to 13 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Height Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline to Last Measurement, As Randomized PopulationBaseline, and end of 4-year addendumValue 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.
Height Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Last Measurement After Attainment of Final Heightat completion of core study, or at end of 4-year addendumSDS 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.

Secondary

MeasureTime frameDescription
Number of Participants With Any Abnormal Fasting Glucose ValueAt start and through end of 4-year addendumIndicates 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).
Height Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline, As-Treated Populationevery 3 months during core study, and at start and end of 4-year addendumValue 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.
Height (Centimeters [cm])every 3 months during core study, and at start and end of 4-year addendumMost mature measurement available, at or after attainment of Final Height.
Number of Participants With an Abnormal Pure Tone Audiometry, Audiologist Assessmentat completion of core study or beginning of addendum
Number of Participants With Abnormal Speech Audiometry, Audiologist Assessmentat completion of core study or beginning of addendum
Number of Participants With Abnormal Impedance Tympanometry, Audiologist Assessmentat completion of core study or beginning of addendum
Number of Participants With Hearing Loss, Audiologist Assessmentat completion of core study or beginning of addendumSensorineural 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.
Maximum Fasting Insulin ValuesAt start and through end of 4-year addendum (up to an additional 2 years)Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Number of Participants With Any Abnormal Fasting Insulin ValueAt start and through end of 4-year addendumIndicates 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 Fasting Glucose/Insulin Ratio ValuesAt start and through end of 4-year addendum (up to an additional 2 years)Minimum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Number of Participants With Any Abnormal Fasting Glucose/Insulin Ratio ValueAt start and through end of 4-year addendumIndicates 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).
Glycosylated Hemoglobin, Change From BaselineAt core study baseline, and at end of 4-year addendumChange from core study baseline to addendum 2 maximum.
Maximum Glycosylated HemoglobinAt start and through end of 4-year addendum (up to an additional 2 years)Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.
Number of Participants With Any Abnormal Glycosylated Hemoglobin (HbA1c) ValueAt start and through end of 4-year addendumIndicates 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).
Fasting Glucose, Change From BaselineAt core study baseline, and at end of 4-year addendumChange from core study baseline to addendum 2 maximum.
Maximum Fasting Glucose ValueAt start and through end of 4-year addendum (up to an additional 2 years)Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.

Countries

Canada

Participant flow

Recruitment details

Addenda 1, 2, and 3 are not sequential, and they differ in eligibility criteria. Depending on individual eligibility and choices made, a patient might have participated in none, 1, 2, or all 3 of these addenda.

Pre-assignment details

Addendum 1: provided option of Humatrope treatment to patients who had been randomized to control in Core Study. Addendum 2: extended period of follow-up for 5 years after discontinuation from Core Study. Addendum 3: evaluated possible genomic imprinting effects (published: Hamelin et al. 2006).

Participants by arm

ArmCount
As-Randomized Control
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).
78
As-Randomized Humatrope
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).
76
Total154

Withdrawals & dropouts

PeriodReasonFG000FG001
Core StudyAdverse Event02
Core StudyDeath10
Core StudyLack of Efficacy02
Core StudyLost to Follow-up30
Core StudyProtocol Violation62
Core StudyWithdrawal by Subject259

Baseline characteristics

CharacteristicAs-Randomized HumatropeTotalAs-Randomized Control
Age Continuous10.36 years
STANDARD_DEVIATION 1.8
10.41 years
STANDARD_DEVIATION 1.78
10.46 years
STANDARD_DEVIATION 1.77
Bone Age8.79 years
STANDARD_DEVIATION 1.42
8.69 years
STANDARD_DEVIATION 1.46
8.57 years
STANDARD_DEVIATION 1.51
Height119.84 centimeters
STANDARD_DEVIATION 8.45
119.96 centimeters
STANDARD_DEVIATION 8.33
120.06 centimeters
STANDARD_DEVIATION 8.26
Height Standard Deviation Score (SDS) [Lyon]-0.10 Standard Deviation Score (SDS)
STANDARD_DEVIATION 0.88
-0.11 Standard Deviation Score (SDS)
STANDARD_DEVIATION 0.87
-0.13 Standard Deviation Score (SDS)
STANDARD_DEVIATION 0.86
Height Standard Deviation Score (SDS) [National Center for Health Statistics (NCHS)]-3.21 Standard Deviation Score (SDS)
STANDARD_DEVIATION 0.82
-3.23 Standard Deviation Score (SDS)
STANDARD_DEVIATION 0.82
-3.25 Standard Deviation Score (SDS)
STANDARD_DEVIATION 0.82
Karyotype
45,X
45 participants93 participants48 participants
Karyotype
45,X/46,XX
3 participants6 participants3 participants
Karyotype
45,X/46,XX/47,XXX
0 participants0 participants0 participants
Karyotype
45,X/46,XXp
1 participants2 participants1 participants
Karyotype
45,X/46,XXqi
2 participants8 participants6 participants
Karyotype
45,X/46,XXr
2 participants3 participants1 participants
Karyotype
45,X/47,XXX
2 participants3 participants1 participants
Karyotype
46,XXp
0 participants1 participants1 participants
Karyotype
46,XXqi
6 participants8 participants2 participants
Karyotype
46,XXr
0 participants0 participants0 participants
Karyotype
Other
15 participants30 participants15 participants
Race/Ethnicity
American Indian or Alaska Native
1 participants2 participants1 participants
Race/Ethnicity
Asian
6 participants13 participants7 participants
Race/Ethnicity
Black or African American
0 participants1 participants1 participants
Race/Ethnicity
Hispanic
2 participants2 participants0 participants
Race/Ethnicity
Native Hawaiian or Other Pacific Islander
0 participants0 participants0 participants
Race/Ethnicity
Other
0 participants4 participants4 participants
Race/Ethnicity
Unknown
1 participants12 participants11 participants
Race/Ethnicity
White
66 participants120 participants54 participants
Region of Enrollment
Canada
76 participants154 participants78 participants
Sex: Female, Male
Female
76 Participants154 Participants78 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
53 / 5474 / 74
serious
Total, serious adverse events
10 / 5422 / 74

Outcome results

Primary

Height Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline to Last Measurement, As Randomized Population

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.

Time frame: Baseline, and end of 4-year addendum

Population: Population of all randomized patients. Intent to treat analysis with as-randomized treatment groups, at most mature measurement available.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
As-Randomized ControlHeight Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline to Last Measurement, As Randomized Population0.09 Standard Deviation Score (SDS) [NCHS]Standard Error 0.07
As-Randomized HumatropeHeight Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline to Last Measurement, As Randomized Population0.97 Standard Deviation Score (SDS) [NCHS]Standard Error 0.07
Comparison: This component of the primary analysis is inferential i.e. to ascertain definitively whether Humatrope treatment affects change in Height SDS (NCHS). Null hypothesis is no effect of Humatrope treatment.p-value: <0.00195% CI: [0.7, 1.1]ANCOVA
Primary

Height Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Last Measurement After Attainment of Final Height

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.

Time frame: at completion of core study, or at end of 4-year addendum

Population: Population of patients for whom Final Height measurements are available. Efficacy analysis with as-treated treatment groups, at most mature measurement available at or after attainment of Final Height.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
As-Randomized ControlHeight Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Last Measurement After Attainment of Final Height-3.30 Standard Deviation Score (SDS) [NCHS]Standard Error 0.07
As-Randomized HumatropeHeight Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Last Measurement After Attainment of Final Height-2.25 Standard Deviation Score (SDS) [NCHS]Standard Error 0.05
Comparison: Estimation analysis of the magnitude of effect of treatment with growth hormone upon Final Height. Null hypothesis is no effect of growth hormone upon attained height standard deviation score (National Center for Health Statistics).p-value: <0.00195% CI: [0.9, 1.2]ANCOVA
Secondary

Fasting Glucose, Change From Baseline

Change from core study baseline to addendum 2 maximum.

Time frame: At core study baseline, and at end of 4-year addendum

Population: Patients who were followed for at least 4 years without growth hormone treatment or who received growth hormone for at least 4 years, and who were treated as randomized and had core study baseline and addendum glucose metabolism data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
As-Randomized ControlFasting Glucose, Change From Baseline5.495 mg / dLStandard Error 2.455
As-Randomized HumatropeFasting Glucose, Change From Baseline3.003 mg / dLStandard Error 1.83
p-value: 0.41995% CI: [-8.631, 3.646]ANOVA
Secondary

Glycosylated Hemoglobin, Change From Baseline

Change from core study baseline to addendum 2 maximum.

Time frame: At core study baseline, and at end of 4-year addendum

Population: Patients who were followed for at least 4 years without growth hormone treatment or who received growth hormone for at least 4 years, and who were treated as randomized and had core study baseline and addendum glucose metabolism data.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
As-Randomized ControlGlycosylated Hemoglobin, Change From Baseline0.215 percent (%)Standard Error 0.077
As-Randomized HumatropeGlycosylated Hemoglobin, Change From Baseline0.208 percent (%)Standard Error 0.057
p-value: 0.94595% CI: [-0.199, 0.186]ANOVA
Secondary

Height (Centimeters [cm])

Most mature measurement available, at or after attainment of Final Height.

Time frame: every 3 months during core study, and at start and end of 4-year addendum

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
As-Randomized ControlHeight (Centimeters [cm])141.63 centimeters (cm)Standard Error 0.47
As-Randomized HumatropeHeight (Centimeters [cm])148.52 centimeters (cm)Standard Error 0.36
p-value: <0.00195% CI: [5.7, 8.1]ANCOVA
Secondary

Height Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline, As-Treated Population

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.

Time frame: every 3 months during core study, and at start and end of 4-year addendum

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
As-Randomized ControlHeight Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline, As-Treated Population-0.09 Standard Deviation Score (SDS) [NCHS]Standard Error 0.08
As-Randomized HumatropeHeight Standard Deviation Score (SDS) (National Center for Health Statistics [NCHS]), Change From Baseline, As-Treated Population0.99 Standard Deviation Score (SDS) [NCHS]Standard Error 0.06
p-value: <0.00195% CI: [0.9, 1.3]ANCOVA
Secondary

Maximum Fasting Glucose Value

Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.

Time frame: At start and through end of 4-year addendum (up to an additional 2 years)

Population: Patients with addendum data who were followed for at least 4 years without growth hormone treatment (and never received growth hormone) or who received growth hormone for at least 4 years.

ArmMeasureValue (MEAN)Dispersion
As-Randomized ControlMaximum Fasting Glucose Value85.2 milligrams per deciliter (mg/dL)Standard Deviation 6.6
As-Randomized HumatropeMaximum Fasting Glucose Value85.2 milligrams per deciliter (mg/dL)Standard Deviation 10.4
Secondary

Maximum Fasting Insulin Values

Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.

Time frame: At start and through end of 4-year addendum (up to an additional 2 years)

Population: Patients with addendum data who were followed for at least 4 years without growth hormone treatment (and never received growth hormone) or who received growth hormone for at least 4 years.

ArmMeasureValue (MEAN)Dispersion
As-Randomized ControlMaximum Fasting Insulin Values9.5 micro International Units per milliliterStandard Deviation 10.8
As-Randomized HumatropeMaximum Fasting Insulin Values9.7 micro International Units per milliliterStandard Deviation 9.3
Secondary

Maximum Glycosylated Hemoglobin

Maximum measured value over addendum. In special cases an additional measurement is taken at 2 years.

Time frame: At start and through end of 4-year addendum (up to an additional 2 years)

Population: Patients with addendum data who were followed for at least 4 years without growth hormone treatment (and never received growth hormone) or who received growth hormone for at least 4 years.

ArmMeasureValue (MEAN)Dispersion
As-Randomized ControlMaximum Glycosylated Hemoglobin5.0 percent (%)Standard Deviation 0.5
As-Randomized HumatropeMaximum Glycosylated Hemoglobin5.0 percent (%)Standard Deviation 0.4
Secondary

Minimum Fasting Glucose/Insulin Ratio Values

Minimum measured value over addendum. In special cases an additional measurement is taken at 2 years.

Time frame: At start and through end of 4-year addendum (up to an additional 2 years)

Population: Patients with addendum data who were followed for at least 4 years without growth hormone treatment (and never received growth hormone) or who received growth hormone for at least 4 years.

ArmMeasureValue (MEAN)Dispersion
As-Randomized ControlMinimum Fasting Glucose/Insulin Ratio Values12.5 milligrams per 10^-4 Units (mg/[10^-4]U)Standard Deviation 6
As-Randomized HumatropeMinimum Fasting Glucose/Insulin Ratio Values12.2 milligrams per 10^-4 Units (mg/[10^-4]U)Standard Deviation 5.3
Secondary

Number of Participants With Abnormal Impedance Tympanometry, Audiologist Assessment

Time frame: at completion of core study or beginning of addendum

Population: All Randomized Patients with Hearing Examination

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With Abnormal Impedance Tympanometry, Audiologist Assessment2 participants
As-Randomized HumatropeNumber of Participants With Abnormal Impedance Tympanometry, Audiologist Assessment18 participants
p-value: 0.073Fisher Exact
Secondary

Number of Participants With Abnormal Speech Audiometry, Audiologist Assessment

Time frame: at completion of core study or beginning of addendum

Population: All Randomized Patients with Hearing Examination

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With Abnormal Speech Audiometry, Audiologist Assessment3 participants
As-Randomized HumatropeNumber of Participants With Abnormal Speech Audiometry, Audiologist Assessment12 participants
p-value: 0.744Fisher Exact
Secondary

Number of Participants With an Abnormal Pure Tone Audiometry, Audiologist Assessment

Time frame: at completion of core study or beginning of addendum

Population: All Randomized Patients with Hearing Examination

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With an Abnormal Pure Tone Audiometry, Audiologist Assessment10 participants
As-Randomized HumatropeNumber of Participants With an Abnormal Pure Tone Audiometry, Audiologist Assessment29 participants
p-value: >0.999Fisher Exact
Secondary

Number of Participants With Any Abnormal Fasting Glucose/Insulin Ratio Value

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).

Time frame: At start and through end of 4-year addendum

Population: Patients with any Addendum 2 glucose metabolism data. Calculated only for patients with fasting blood \<100 mg/dL.

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With Any Abnormal Fasting Glucose/Insulin Ratio Value1 participants
As-Randomized HumatropeNumber of Participants With Any Abnormal Fasting Glucose/Insulin Ratio Value3 participants
p-value: >0.999Fisher Exact
Secondary

Number of Participants With Any Abnormal Fasting Glucose Value

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).

Time frame: At start and through end of 4-year addendum

Population: Patients with any Addendum 2 glucose metabolism data

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With Any Abnormal Fasting Glucose Value0 participants
As-Randomized HumatropeNumber of Participants With Any Abnormal Fasting Glucose Value3 participants
p-value: 0.545Fisher Exact
Secondary

Number of Participants With Any Abnormal Fasting Insulin Value

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).

Time frame: At start and through end of 4-year addendum

Population: Patients with any Addendum 2 glucose metabolism data

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With Any Abnormal Fasting Insulin Value1 participants
As-Randomized HumatropeNumber of Participants With Any Abnormal Fasting Insulin Value2 participants
p-value: >0.999Fisher Exact
Secondary

Number of Participants With Any Abnormal Glycosylated Hemoglobin (HbA1c) Value

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).

Time frame: At start and through end of 4-year addendum

Population: Patients with any Addendum 2 glucose metabolism data.

ArmMeasureValue (NUMBER)
As-Randomized ControlNumber of Participants With Any Abnormal Glycosylated Hemoglobin (HbA1c) Value0 participants
As-Randomized HumatropeNumber of Participants With Any Abnormal Glycosylated Hemoglobin (HbA1c) Value0 participants
Fisher Exact
Secondary

Number of Participants With Hearing Loss, Audiologist Assessment

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.

Time frame: at completion of core study or beginning of addendum

Population: All Randomized Patients with Hearing Examination for whom Audiologist responded to Hearing Loss question

ArmMeasureGroupValue (NUMBER)
As-Randomized ControlNumber of Participants With Hearing Loss, Audiologist AssessmentConductive Hearing Loss1 participants
As-Randomized ControlNumber of Participants With Hearing Loss, Audiologist AssessmentMixed Hearing Loss2 participants
As-Randomized ControlNumber of Participants With Hearing Loss, Audiologist AssessmentUnspecified Hearing Loss1 participants
As-Randomized ControlNumber of Participants With Hearing Loss, Audiologist AssessmentSensorineural Hearing Loss8 participants
As-Randomized HumatropeNumber of Participants With Hearing Loss, Audiologist AssessmentUnspecified Hearing Loss1 participants
As-Randomized HumatropeNumber of Participants With Hearing Loss, Audiologist AssessmentConductive Hearing Loss7 participants
As-Randomized HumatropeNumber of Participants With Hearing Loss, Audiologist AssessmentSensorineural Hearing Loss15 participants
As-Randomized HumatropeNumber of Participants With Hearing Loss, Audiologist AssessmentMixed Hearing Loss9 participants
Comparison: Comparison of proportion of patients with any category of hearing loss between As-Treated Growth Hormone group and As-Treated No Growth Hormone.p-value: >0.999Fisher Exact

Source: ClinicalTrials.gov · Data processed: Mar 29, 2026