E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Severe idiopathic short stature |
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E.1.1.1 | Medical condition in easily understood language |
short stature for no clear reason |
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E.1.1.2 | Therapeutic area | Body processes [G] - Bones and nerves physological processes [G11] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 14.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10066333 |
E.1.2 | Term | Idiopathic short stature |
E.1.2 | System Organ Class | 10028395 - Musculoskeletal and connective tissue disorders |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
Assessment of the value of the short-term (2 weeks) response of IGF-I (peak IGF-I SDS) to GH in a dosage of 1.4 mg/m2/day (as part of a dose-escalation IGF-I generation test) in comparison to baseline IGF-I to predict the 1 year growth response (expressed as studentized residual for children with ISS) to GH in a dose of 1.4 mg/m2/day. |
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E.2.2 | Secondary objectives of the trial |
Assessment of the value of other parameters of the dose-escalation IGF-I generation test (peak values and changes versus baseline of IGF-I, IGFBP-3, IGF-I/IGFBP-3 ratio, and IGF-I/IGFBP-2 ratio) in comparison to baseline IGF-I to predict the 1 year growth response (expressed as studentized residual for children with ISS) to GH in a dose of 1.4 mg/m2/day.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Prepubertal children aged 2.0-9.0 (females) or 2.0-10.0 (males) years, bone age <9 (females) or <10 (males) years, height SDS<-2.5 (for ethnically adequate references), peak GH after provocation >30 mU/L, IGF-I SDS < -2 (at least twice, one of which determined in UMCU), body mass index (BMI) SDS > -2 |
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E.4 | Principal exclusion criteria |
• Has a history of hypersensitivity to growth hormone or phenol (conservative added to GH in NutropinAq), or drugs with a similar chemical structure.
• Was treated with any other Investigational Medicinal Product (IMP) within the last 30 days before study entry.
• Has any mental condition rendering the subject unable to understand the nature, scope and possible consequences of the study, and/or evidence of an uncooperative attitude.
• Has abnormal baseline findings, any other medical condition(s) or laboratory findings that, in the opinion of the Investigator, might jeopardise the subject’s safety or decrease the chance of obtaining satisfactory data needed to achieve the objectives of the study.
• Has a birth weight and/or length below -2 SDS for Swedish reference charts (2). Patients will not be excluded due to an unknown birth weight or length.
• Has a known cause of short stature, or any significant concomitant disease that is likely to interfere with growth or with the study schedule/objectives, or is a known contraindication to GH treatment such as: chromosomal abnormalities (known syndromes associated with short stature, and skeletal dysplasias); growth failure due to high doses of glucocorticosteroids, hypothyroidism, chronic illnesses; malignancy, intra-cranial tumor; chronic disease such as insulin-dependent diabetes mellitus; chronic infectious disease; chronic renal insufficiency; chronic heart failure; chronic hepatic disease; celiac disease; chronic pulmonary disease; active rheumatic disease; psychosis; neurofibromatosis; McCune Albright syndrome; dysmorphic syndromes such as Russell-Silver syndrome, Leri-Weill syndrome, achondroplasia, etc; and emotional deprivation. Hypothyroidism adequately substituted with thyroid hormone replacement therapy is not an exclusion criterion. For girls, the karyotype, to eliminate a Turner syndrome, is mandatory. In case of a positive Rappold score (> 4) (3), a SHOX defect has to be excluded.
• Has dysmorphic features suspect for chromosomal breakage syndromes.
• Has known causes of decreased IGF-I (e.g. undernutrition).
• Has an abnormal sitting height:height ratio SDS (<-2 or >+2), corrected for bone age, according to Dutch references (4).
• Has any abnormality at laboratory screening according to the Dutch consensus protocol (see appendix 3).
• Is likely to require treatment during the study with drugs that are not permitted by the study protocol (see appendix 4).
• Has active neoplasia or suspected neoplasia.
• The parents are investigator site personnel directly affiliated with the study, or are the immediate family of investigator site personnel directly affiliated with the study. Immediate family is defined as spouse, parent, child, or sibling, whether biological or legally adopted.
• Is unable or unwilling to comply with the study visits or the test schedule required by the protocol.
• Patients not affiliated to the health insurance system will not be allowed to participate in this trial.
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E.5 End points |
E.5.1 | Primary end point(s) |
Assessment of the value of the short-term (2 weeks) response of IGF-I (peak IGF-I SDS) to GH in a dosage of 1.4 mg/m2/day (as part of a dose-escalation IGF-I generation test) in comparison to baseline IGF-I to predict the 1 year growth response (expressed as studentized residual for children with ISS) to GH in a dose of 1.4 mg/m2/day |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
At 19.5 months (after screening and treatment of the patients). |
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E.5.2 | Secondary end point(s) |
- peak IGF-I after 2 weeks on GH 1.4 mg/m2/day
-Delta IGF-I SDS on 0.7 mg GH/m2/day for 2 weeks
-Delta IGF-I SDS on 1.4 mg GH/m2/day for 2 weeks
-Delta IGFBP-3 SDS on 0.7 mg GH/m2/day for 2 weeks
-Delta IGFBP-3 SDS on 1.4 mg GH/m2/day for 2 weeks
-Delta of the ratio IGF-I:IGFBP-3 SDS on 0.7 mg GH/m2/day for 2 weeks
-Delta of the ratio IGF-I:IGFBP-3 SDS on 1.4 mg GH/m2/day for 2 weeks
-Delta of the ratio IGF-I:IGFBP-2 SDS on 0.7 mg GH/m2/day for 2 weeks
-Delta of the ratio IGF-I:IGFBP-2 SDS on 1.4 mg GH/m2/day for 2 weeks
-Peak IGF-I SDS on 0.7 mg GH/m2/day for 2 weeks
-Peak IGFBP-3 SDS on 0.7 mg GH/m2/day for 2 weeks
-Peak IGFBP-3 SDS on 1.4 mg GH/m2/day for 2 weeks
-Peak of the ratio IGF-I:IGFBP-3 SDS on 0.7 mg GH/m2/day for 2 weeks
-Peak of the ratio IGF-I:IGFBP-3 SDS on 1.4 mg GH/m2/day for 2 weeks
-Peak of the ratio IGF-I:IGFBP-2 SDS on 0.7 mg GH/m2/day for 2 weeks
-Peak of the ratio IGF-I:IGFBP-2 SDS on 1.4 mg GH/m2/day for 2 weeks
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
At 2 weeks after start treatment of the patients |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | Yes |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | No |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | Yes |
E.8 Design of the trial |
E.8.1 | Controlled | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Information not present in EudraCT |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Information not present in EudraCT |
E.8.2.2 | Placebo | Information not present in EudraCT |
E.8.2.3 | Other | Information not present in EudraCT |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | No |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The Sponsor may terminate this study at any time. Reasons for termination may include, but are not limited to, the following:
• The incidence or severity of adverse events (AE) in this or other studies point to a potential health hazard for trial subjects.
• Insufficient subject enrolment.
• Any information becoming available during the study that substantially changes the expected benefit risk profile of the study treatments.
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 3 |
E.8.9.1 | In the Member State concerned months | 0 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 3 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |