E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
X-linked hypohidrotic ectodermal dysplasia (XLHED) |
|
E.1.1.1 | Medical condition in easily understood language |
X-linked hypohidrotic ectodermal dysplasia (XLHED) |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Congenital, Hereditary, and Neonatal Diseases and Abnormalities [C16] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10072592 |
E.1.2 | Term | Hypohidrotic ectodermal dysplasia |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
|
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To assess the efficacy of intra-amniotic administrations of ER004 on sweating ability in male XLHED subjects with a null mutation in EDA at 6 months of age, compared to untreated matched control subjects. |
|
E.2.2 | Secondary objectives of the trial |
To assess the efficacy of intra-amniotic administrations of ER004 on sweat pore density and dentition in male subjects with XLHED at 6 months of age To assess the efficacy of intra-amniotic administrations of ER004 in male subjects with XLHED up to 5 years of age To assess the safety and tolerability of intra-amniotic administrations of ER004 in male subjects with XLHED up to 6 months of age and in mothers up to 1 month after delivery To assess the long-term safety of intra amniotic administrations of ER004 in male subjects with XLHED up to 5 years of age To assess safety parameters in untreated relatives (controls)
|
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
For mother : Adult mother with confirmed pregnancy no later than week 23+6 and genetically confirmed as carrier of an EDA mutation
For fetus subject: Male Fetal subject with confirmed diagnosis of XLHED
Untreated relative : Untreated male relative subject ages between 6 months and 75 years with the same EDA mutation as the treated subject
|
|
E.4 | Principal exclusion criteria |
For mother: Any evidence of active maternal infection associated with a risk of preterm birth and/or congenital anomalies of prenatal and postnatal risk to the child Documented maternal HIV infection. Any pre-existing maternal medical condition that increases the risk of preterm birth or increases the risk of a serious untoward event occurring to the mother during pregnancy. Any pregnancy disorder associated with an increased risk of preterm birth, and/or maternal, fetal or neonatal morbidity/mortality
For fetal subject 1.Second major anatomic anomaly (not related to the underlying XLHED) that contributes to a significant morbidity or mortality risk, or echocardiogram or ultrasonography or other findings that indicate a high risk of fetal demise or risk of preterm birth. 2.Any condition other than XLHED (i.e., other forms of ectodermal dysplasia, large orofacial clefts) that is likely to have an impact on the number of tooth germs. 3.Any other medical condition which in the opinion of the investigator would not allow for safe conduct of the study for the subject, or that would interfere with efficacy assessments (e.g., any disorders that lead to reduced fetal swallowing).
Untreated Relative 1.Carrier of an hypomorphic EDA mutation. 2.Known hypersensitivity to pilocarpine or pilocarpine-like muscarinic agonists. 3.Presence of an implanted device (e.g., defibrillator, neurostimulator, pacemaker). 4.Previous treatment with the study intervention by any route of administration prior to study start.
|
|
E.5 End points |
E.5.1 | Primary end point(s) |
Mean sweat volume collected on both forearms after local stimulation with pilocarpine (pilocarpine-induced sweating).
|
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
For treated subject, mean sweat volume is collected at 6 months of age (V8) (corrected age for subjects born at < 37 weeks) |
|
E.5.2 | Secondary end point(s) |
Key secondary endpoints: •Mean sweat pore density (number/cm2) determined by direct visualization with a VivaScope® at 6 months of age (V8) at 2 different sites on the soles of the feet •Dental development evaluated by the number of erupted teeth and tooth buds (palpable alveolar structures in the alveolar ridge) as determined by oral examination at 6 months of age (V8)
Other secondary endpoints: •Mean sweat volume on both forearms measured from a pilocarpine-induced sweat test (at other timepoints than 6 months). •Sweat pore density (at other timepoints than 6 months). •Dentition (at other timepoints than 6 months). •Dry eye •Salivation assessment •Number of XLHED related hospitalizations •Assessment of eczema •Safety and tolerability assessments •Health-related quality of life assessments
|
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
At 6 month of age for primary and key secondary endpoints |
|
E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | Yes |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
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 | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | Yes |
E.8.2.3.1 | Comparator description |
Genotype-matched controlled |
|
E.8.2.4 | Number of treatment arms in the trial | 1 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
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 | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 5 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
United Kingdom |
United States |
|
E.8.7 | Trial has a data monitoring committee | Yes |
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
|
The End of study is defined as the time point when the last treated subject has completed the last visit (V14) or the premature withdrawal visit. |
|
E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 8 |
E.8.9.1 | In the Member State concerned months | |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 8 |