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Long-Term Growth and Skeletal Effects of Early Growth Hormone Treatment in Turner Syndrome

Effect of Early Growth Hormone Treatment on Long-term Growth and Skeletal Maturation in Girls With Turner Syndrome

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00266656
Enrollment
69
Registered
2005-12-19
Start date
2005-12-31
Completion date
2015-09-30
Last updated
2017-03-31

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

Conditions

Turner Syndrome

Brief summary

This is an extension study that will gather long-term data on the effect of early growth hormone (GH) treatment on adult height and other aspects of health and development in girls with Turner syndrome. The main purpose is to determine whether girls who received 2 years of GH treatment before 6 years of age achieve taller adult height than girls who were untreated during this time. The study will also look at middle ear and hearing function, and cognitive and behavioral development. Protocol completion is defined as attainment of height velocity less than or equal to 1.0 cm/year, or bone age greater than or equal to 15 years.

Interventions

According to investigator's clinical practice and guided by the approved package insert

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
4 Years to 20 Years
Healthy volunteers
No

Inclusion criteria

* Previously randomized in study B9R-US-GDFG (NCT00406926) * Karyotype-proven Turner syndrome

Exclusion criteria

* Immediate family members of study site personnel directly affiliated with the study

Design outcomes

Primary

MeasureTime frameDescription
Most Mature Height Standard Deviation Score (SDS)Baseline through End of Study (10 years)SDS reports the number of standard deviations from the mean for age and sex for an individual measurement (normal range is -2 to +2 SDS). Height SDS is derived by subtracting the population mean from individual's height value and then dividing that difference by the population standard deviation. Greater height SDS values indicate greater height.

Secondary

MeasureTime frameDescription
Age at Attainment of Tanner 2 Breast DevelopmentBaseline through End of Study (10 years)The Tanner 2 breast development is the age at first evidence of breast development.
Chronological Age at First Visit Participant Attained Bone Age of 14.5 YearsBaseline through End of Study (10 years)Bone age was measured by standard radiograph, x-ray at baseline and annually for 10 years or until attainment of height velocity less than or equal to 1.0 centimeter per year (cm/year) and bone age greater or equal to 15 years.
Reports of Serious Adverse EventsBaseline through End of Study (10 years)Number of serious adverse events (SAEs) reported. Any adverse event from this study that results in one of the following outcomes, or is significant for any other reason were reported as an SAE: death, initial or prolonged inpatient hospitalization, a life-threatening experience (that is, immediate risk of dying), persistent or significant disability/incapacity, congenital anomaly/birth defect in the offspring of a study subject, significant for any other reason (includes cancer, other than superficial, and basal cell or squamous cell carcinomas of the skin, that did not meet other serious adverse event criteria). A summary of other nonserious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.
Height SDS at Various AgesAge 10, Age 13, Age 16SDS reports the number of standard deviations from the mean for age and sex for an individual measurement (normal range is -2 to +2 SDS). Height SDS is derived by subtracting the population mean from individual's height value and then dividing that difference by the population standard deviation. Greater height SDS values indicate greater height.
Percentage of Participants With Abnormal Tympanometry ResultsBaseline, Age 10, Age 16, End of Study (10 years)Percentage of participants with abnormal tympanometry \[defined as middle ear dysfunction / middle ear effusion / patent pressure equalizer tube or possible tympanic membrane perforation\] results at baseline, age 10 years, and age 16 years or endpoint.
Percentage of Participants With Prevalence of Abnormal Audiometry ResultsBaseline, Age 10, Age 16, End of Study (10 years)Percentage of participants with abnormal Audiometry results at baseline, age 10 years, and age 16 years or endpoint. Prevalence was calculated as number of participants with abnormal hearing divided by number of participants with measurable pure tone audiometry results at that visit.
Percentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline, Age 10, Age 16, End of Study (10 years)Percentage of participants with abnormal Audiometry results at baseline, age 10 years, and age 16 years or endpoint. PTA is defined as the average of pure tone hearing thresholds at 500, 1000 and 2000 Hz (Hertz), calculated separately for each ear and for each testing method (air or bone); normal PTA is defined as pure tone hearing threshold less than or equal to 20 dB HL (decibels Hearing Level), and abnormal PTA is defined as pure tone hearing threshold greater than 20 DB HL.
Percentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline through End of Study (10 years)Percentage of participants for whom certain non-serious, pre-specified adverse events (AEs; those that are commonly observed in Turner syndrome or are known to be related to GH treatment: impaired glucose tolerance, diabetes mellitus, hypothyroidism, benign intracranial hypertension, scoliosis, slipped capital femoral epiphysis, solid tumor/leukemia, pancreatitis, ear infections, and high blood pressure) are reported.

Countries

United States

Participant flow

Recruitment details

To be included in this study, participants had to be females with karyotype-proven Turner syndrome who were previously randomized in Study B9R-US-GDFG (NCT00406926).

Participants by arm

ArmCount
Early Treated
Early treated n=36
36
Early Untreated
Early untreated n=33
33
Total69

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath10
Overall StudyDid Not Reach Final Height48
Overall StudyLost to Follow-up41
Overall StudyParent/Caregiver Decision12
Overall StudyWithdrawal by Subject42

Baseline characteristics

CharacteristicEarly TreatedEarly UntreatedTotal
Age, Continuous8.29 years
STANDARD_DEVIATION 1.22
8.41 years
STANDARD_DEVIATION 1.3
8.35 years
STANDARD_DEVIATION 1.25
Bone Age8.73 years
STANDARD_DEVIATION 1.55
8.34 years
STANDARD_DEVIATION 1.57
8.54 years
STANDARD_DEVIATION 1.56
Height124.34 centimeter
STANDARD_DEVIATION 10.08
121.06 centimeter
STANDARD_DEVIATION 9.76
122.77 centimeter
STANDARD_DEVIATION 9.99
Height Standard Deviation Score (SDS)-0.84 Standard Deviation Score
STANDARD_DEVIATION 1.22
-1.48 Standard Deviation Score
STANDARD_DEVIATION 1.23
-1.15 Standard Deviation Score
STANDARD_DEVIATION 1.26
Sex: Female, Male
Female
36 Participants33 Participants69 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
34 / 3632 / 33
serious
Total, serious adverse events
6 / 365 / 33

Outcome results

Primary

Most Mature Height Standard Deviation Score (SDS)

SDS reports the number of standard deviations from the mean for age and sex for an individual measurement (normal range is -2 to +2 SDS). Height SDS is derived by subtracting the population mean from individual's height value and then dividing that difference by the population standard deviation. Greater height SDS values indicate greater height.

Time frame: Baseline through End of Study (10 years)

Population: All participants who achieved Near Adult Height (NAH). NAH is defined as first height measured when height velocity is less than or equal to 2.0 centimeter per year over the preceding year (in the absence of growth-impairing process such as hypothyroidism or inflammatory bowel disease), or bone age greater than or equal to14.5 years.

ArmMeasureValue (MEAN)Dispersion
Early TreatedMost Mature Height Standard Deviation Score (SDS)-1.37 standard deviation scoreStandard Deviation 1.09
Early UntreatedMost Mature Height Standard Deviation Score (SDS)-1.60 standard deviation scoreStandard Deviation 1.21
Secondary

Age at Attainment of Tanner 2 Breast Development

The Tanner 2 breast development is the age at first evidence of breast development.

Time frame: Baseline through End of Study (10 years)

Population: All participants who had a baseline visit and at least one post-baseline visit.

ArmMeasureValue (MEAN)Dispersion
Early TreatedAge at Attainment of Tanner 2 Breast Development11.80 yearsStandard Error 0.26
Early UntreatedAge at Attainment of Tanner 2 Breast Development12.14 yearsStandard Error 0.31
Secondary

Chronological Age at First Visit Participant Attained Bone Age of 14.5 Years

Bone age was measured by standard radiograph, x-ray at baseline and annually for 10 years or until attainment of height velocity less than or equal to 1.0 centimeter per year (cm/year) and bone age greater or equal to 15 years.

Time frame: Baseline through End of Study (10 years)

Population: All participants who achieved Near Adult Height (NAH). NAH is defined as first height measured when height velocity is less than or equal to 2.0 centimeter per year over the preceding year (in the absence of growth-impairing process such as hypothyroidism or inflammatory bowel disease), or bone age greater than or equal to14.5 years.

ArmMeasureValue (MEAN)Dispersion
Early TreatedChronological Age at First Visit Participant Attained Bone Age of 14.5 Years14.64 yearsStandard Error 0.25
Early UntreatedChronological Age at First Visit Participant Attained Bone Age of 14.5 Years15.26 yearsStandard Error 0.23
Secondary

Height SDS at Various Ages

SDS reports the number of standard deviations from the mean for age and sex for an individual measurement (normal range is -2 to +2 SDS). Height SDS is derived by subtracting the population mean from individual's height value and then dividing that difference by the population standard deviation. Greater height SDS values indicate greater height.

Time frame: Age 10, Age 13, Age 16

Population: All participants who had a baseline visit and at least one post-baseline visit.

ArmMeasureGroupValue (MEAN)Dispersion
Early TreatedHeight SDS at Various AgesAge 10 (n=32, 30)-0.66 Standard deviation scoreStandard Deviation 1.16
Early TreatedHeight SDS at Various AgesAge 13 (n=29, 29)-1.29 Standard deviation scoreStandard Deviation 1.24
Early TreatedHeight SDS at Various AgesAge 16 (n=18, 18)-1.66 Standard deviation scoreStandard Deviation 1.11
Early UntreatedHeight SDS at Various AgesAge 10 (n=32, 30)-1.28 Standard deviation scoreStandard Deviation 1.17
Early UntreatedHeight SDS at Various AgesAge 13 (n=29, 29)-1.87 Standard deviation scoreStandard Deviation 1.16
Early UntreatedHeight SDS at Various AgesAge 16 (n=18, 18)-1.69 Standard deviation scoreStandard Deviation 1.3
Secondary

Percentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)

Percentage of participants with abnormal Audiometry results at baseline, age 10 years, and age 16 years or endpoint. PTA is defined as the average of pure tone hearing thresholds at 500, 1000 and 2000 Hz (Hertz), calculated separately for each ear and for each testing method (air or bone); normal PTA is defined as pure tone hearing threshold less than or equal to 20 dB HL (decibels Hearing Level), and abnormal PTA is defined as pure tone hearing threshold greater than 20 DB HL.

Time frame: Baseline, Age 10, Age 16, End of Study (10 years)

Population: All participants who had a baseline visit, regardless of whether or not they received Humatrope at any time.

ArmMeasureGroupValue (NUMBER)
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Right Ear Bone (n=27, 22)0.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Left Ear Air (n=36, 32)30.6 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Left Ear Bone (n=36, 32)2.8 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Right Ear Air (n=36, 32)22.2 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Right Ear Bone (n=36, 32)22.2 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Left Ear Air (n=27, 21)29.6 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Left Ear Bone (n=27, 21)0.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Right Ear Air (n=27, 22)14.8 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Left Ear Air (n=7, 9)57.1 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Left Ear Bone (n=7, 9)0.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Right Ear Air (n=7, 9)28.6 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Right Ear Bone (n=7, 9)0.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Left Ear Air (n=20, 20)30.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Left Ear Bone (n=20, 20)5.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Right Ear Air (n=20, 20)20.0 percentage of participants
Early TreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Right Ear Bone (n=20, 20)10.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Right Ear Bone (n=20, 20)25.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Left Ear Air (n=7, 9)66.7 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Left Ear Air (n=36, 32)31.3 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Left Ear Air (n=20, 20)35.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Left Ear Bone (n=36, 32)0.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Left Ear Bone (n=7, 9)0.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Right Ear Air (n=36, 32)37.5 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Right Ear Air (n=20, 20)35.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Baseline Right Ear Bone (n=36, 32)2.8 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Right Ear Air (n=7, 9)33.3 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Left Ear Air (n=27, 21)14.3 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Endpoint Left Ear Bone (n=20, 20)20.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Left Ear Bone (n=27, 21)0.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 16 Right Ear Bone (n=7, 9)22.2 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Right Ear Air (n=27, 22)18.2 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Audiometry Results Based on Pure Tone Average (PTA)Age 10 Right Ear Bone (n=27, 22)9.1 percentage of participants
Secondary

Percentage of Participants With Abnormal Tympanometry Results

Percentage of participants with abnormal tympanometry \[defined as middle ear dysfunction / middle ear effusion / patent pressure equalizer tube or possible tympanic membrane perforation\] results at baseline, age 10 years, and age 16 years or endpoint.

Time frame: Baseline, Age 10, Age 16, End of Study (10 years)

Population: All participants who had a baseline visit, regardless of whether or not they received Humatrope at any time.

ArmMeasureGroupValue (NUMBER)
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsBaseline Right Ear44.4 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsBaseline Left Ear47.2 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 10 Right Ear27.8 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 10 Left Ear27.8 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 16 Right Ear2.8 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 16 Left Ear2.8 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsEndpoint Right Ear8.3 percentage of participants
Early TreatedPercentage of Participants With Abnormal Tympanometry ResultsEndpoint Left Ear11.1 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsEndpoint Left Ear9.1 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsBaseline Right Ear54.5 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 16 Right Ear9.1 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsBaseline Left Ear45.5 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsEndpoint Right Ear12.1 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 10 Right Ear15.2 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 16 Left Ear3.0 percentage of participants
Early UntreatedPercentage of Participants With Abnormal Tympanometry ResultsAge 10 Left Ear15.2 percentage of participants
Secondary

Percentage of Participants With Occurrence of Pre-specified Clinically Relevant Events

Percentage of participants for whom certain non-serious, pre-specified adverse events (AEs; those that are commonly observed in Turner syndrome or are known to be related to GH treatment: impaired glucose tolerance, diabetes mellitus, hypothyroidism, benign intracranial hypertension, scoliosis, slipped capital femoral epiphysis, solid tumor/leukemia, pancreatitis, ear infections, and high blood pressure) are reported.

Time frame: Baseline through End of Study (10 years)

Population: All participants who had a baseline visit, regardless of whether or not they received Humatrope at any time.

ArmMeasureGroupValue (NUMBER)
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Hypothyroidism13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Scoliosis25.0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Scoliosis16.7 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Hypothyroidism11.1 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Hypothyroidism13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Ear infections19.4 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Scoliosis25.0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Hypothyroidism13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 Hypothyroidism11.1 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Scoliosis13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Scoliosis22.2 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Dilatation of the Aorta2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Ear infections13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Hypothyroidism5.6 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Scoliosis13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Ear infections16.7 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Ear infections22.2 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Ear infections2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline Ear infections13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Ear infections33.3 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Ear infections30.6 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline Hypothyroidism13.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Scoliosis25.0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline Scoliosis22.2 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Hypothyroidism11.1 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 Ear infections38.9 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Diabetes2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Dilatation of the Aorta0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 Scoliosis16.7 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 High Blood Pressure0 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Hypothyroidism2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Ear infections19.4 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Scoliosis5.6 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Hypothyroidism11.1 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 10 Scoliosis2.8 percentage of participants
Early TreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 High Blood Pressure0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Hypothyroidism15.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Ear infections30.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Hypothyroidism12.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Dilatation of the Aorta3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Ear infections27.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Hypothyroidism12.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 2 Scoliosis24.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Dilatation of the Aorta6.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Ear infections36.4 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Hypothyroidism12.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 3 Scoliosis27.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Dilatation of the Aorta6.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 4 Scoliosis27.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Dilatation of the Aorta6.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Ear infections27.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Hypothyroidism18.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 5 Scoliosis27.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Dilatation of the Aorta9.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Ear infections24.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Hypothyroidism18.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 6 Scoliosis30.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Dilatation of the Aorta9.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Ear infections18.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 7 Scoliosis30.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Diabetes0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Dilatation of the Aorta9.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Ear infections18.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Hypothyroidism12.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 8 Scoliosis33.3 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Dilatation of the Aorta3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Ear infections3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline Ear infections18.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline Hypothyroidism6.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsBaseline Scoliosis9.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 Ear infections39.4 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 High Blood Pressure3.0 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 Hypothyroidism12.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 1 Scoliosis21.2 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Hypothyroidism6.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 9 Scoliosis9.1 percentage of participants
Early UntreatedPercentage of Participants With Occurrence of Pre-specified Clinically Relevant EventsYear 10 Scoliosis0 percentage of participants
Secondary

Percentage of Participants With Prevalence of Abnormal Audiometry Results

Percentage of participants with abnormal Audiometry results at baseline, age 10 years, and age 16 years or endpoint. Prevalence was calculated as number of participants with abnormal hearing divided by number of participants with measurable pure tone audiometry results at that visit.

Time frame: Baseline, Age 10, Age 16, End of Study (10 years)

Population: All participants who had a baseline visit, regardless of whether or not they received Humatrope at any time.

ArmMeasureGroupValue (NUMBER)
Early TreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsBaseline Visit (n=36, 33)52.8 percentage of participants
Early TreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsAge 10 (n=27, 24)44.4 percentage of participants
Early TreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsAge 16 (n=7, 9)85.7 percentage of participants
Early TreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsEndpoint (n=24, 22)37.5 percentage of participants
Early UntreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsEndpoint (n=24, 22)40.9 percentage of participants
Early UntreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsBaseline Visit (n=36, 33)48.5 percentage of participants
Early UntreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsAge 16 (n=7, 9)66.7 percentage of participants
Early UntreatedPercentage of Participants With Prevalence of Abnormal Audiometry ResultsAge 10 (n=27, 24)29.2 percentage of participants
Secondary

Reports of Serious Adverse Events

Number of serious adverse events (SAEs) reported. Any adverse event from this study that results in one of the following outcomes, or is significant for any other reason were reported as an SAE: death, initial or prolonged inpatient hospitalization, a life-threatening experience (that is, immediate risk of dying), persistent or significant disability/incapacity, congenital anomaly/birth defect in the offspring of a study subject, significant for any other reason (includes cancer, other than superficial, and basal cell or squamous cell carcinomas of the skin, that did not meet other serious adverse event criteria). A summary of other nonserious AEs, and all SAE's, regardless of causality, is located in the Reported Adverse Events section.

Time frame: Baseline through End of Study (10 years)

Population: All participants who had a baseline visit, regardless of whether or not they received Humatrope at any time.

ArmMeasureValue (NUMBER)
Early TreatedReports of Serious Adverse Events8 events
Early UntreatedReports of Serious Adverse Events5 events

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026