Clinical Trials Logo

Clinical Trial Summary

The goal of the ECP-002e extension study is to continue the evaluation of all EDI200-treated ECP-002 subjects up to age 10 yrs. No additional study drug administration is planned. The efficacy evaluations will incorporate growth and development parameters, frequency of infections and hospitalizations, and age-appropriate assessments of ectoderm-derived organ function. The safety evaluations will include physical examinations, adverse events and concomitant medication documentation, and laboratory testing. Funding Source - FDA OOPD


Clinical Trial Description

X-linked hypohidrotic ectodermal dysplasia (XLHED) is a disorder of ectoderm development in which sweat and other secretory gland hypoplasias predispose affected infants to serious and potentially life-threatening hyperthermia and pneumonia. Those XLHED patients who survive infancy face a host of ectoderm-related clinical conditions including failure to thrive, oligodontia and misshapen teeth, mid-face hypoplasia, eczema, chronic dry eyes, asthma, respiratory infections, sinusitis and chronic nosebleeds. XLHED is caused by inherited defects in the ectodysplasin gene (EDA, www.ncbi.nlm.nih.gov/omim) resulting in a deficiency of the ectoderm signaling protein EDA-A1. As is the general case with X-linked disorders, hemizygous XLHED males are more consistently and severely affected, while heterozygous XLHED females have a more variable phenotype.

In normal development, EDA-A1 acts as an ectoderm signaling molecule that binds specifically to the EDA-A1 receptor (EDAR) triggering initiation and maturation of ectodermal appendages into sweat and other secretory glands, tooth buds and hair follicles. In the case of XLHED, EDA-A1 deficiency results in the absence or functional hypoplasia of the ectoderm appendages. There are no therapies currently available for XLHED that prevent or correct the underlying ectodermal abnormalities.

EDI200 is a fully humanized EDA-A1 replacement molecule under development as a novel therapeutic for XLHED. EDI200 comprises the human IgG1 Fc domain linked to the human EDA-A1 receptor-binding domain. On-target EDI200 activation of the EDA-A1/EDAR signaling pathway in vivo is evidenced by the remarkable phenotypic response in preclinical models. In XLHED-affected animals, EDA-A1 deficiency is corrected by a single course of EDI200 therapy, administered either prenatally (mice) or postnatally (newborn mice and dogs), resulting in a significant and sustained improvement in the health of the treated animals. Postnatal studies in both mice and dogs demonstrated a consistent and restricted window of efficacy. These results support the clinical development of EDI200 as a therapeutic to be administered to XLHED-affected patients in the neonatal period or earlier.

ECP-002, a Phase 2, international, first-in-neonate EDI200 study is enrolling treatment-naïve, XLHED-affected male newborns in the first two weeks of life. All subjects will meet entry criteria including documentation of an EDA mutation associated with XLHED. Following Baseline evaluations, EDI200 dosing is initiated between day-of-life 2 and 14, with each study subject receiving a single course of study drug administered at 2 doses/week for a total of 5 doses. The treatment study protocol incorporates comprehensive safety, pharmacokinetic (PK), immunogenetic, and pharmacodynamic (PD)/efficacy evaluations continuing through age 6 months.

The goal of the ECP-002e extension study is to continue the evaluation of all EDI200-treated ECP-002 subjects up to age 10 yrs. No additional study drug administration is planned. The efficacy evaluations will incorporate growth and development parameters, frequency of infections and hospitalizations, and age-appropriate assessments of ectoderm-derived organ function. The safety evaluations will include physical examinations, adverse events and concomitant medication documentation, and laboratory testing. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT01992289
Study type Observational
Source Edimer Pharmaceuticals
Contact
Status Active, not recruiting
Phase N/A
Start date March 2014
Completion date March 2025

See also
  Status Clinical Trial Phase
Completed NCT01564225 - A Phase 1, Open-label, Multicenter, Safety and Pharmacokinetic Study of EDI200 Phase 1
Completed NCT01629927 - Evaluation of Phenotypic and Genetic Properties in Male Subjects Affected By Hypohidrotic Ectodermal Dysplasia (ECP-012) N/A
Completed NCT01629940 - Phenotypic and Genetic Properties in Males at Risk for X-linked Hypohidrotic Ectodermal Dysplasia: Evaluation of an Early Diagnosis Technology and Tests to Assess Nutritional Status N/A
Completed NCT01398813 - X-Linked Hypohidrotic Ectodermal Dysplasia (XLHED) Carrier Outlook Toward Reproduction Survey N/A
Completed NCT02099552 - Natural History and Outcomes in X-Linked Hypohidrotic Ectodermal Dysplasia N/A
Completed NCT01775462 - Phase 2 Study to Evaluate Safety, Pharmacokinetics, Immunogenicity and Pharmacodynamics/Efficacy of EDI200 in Male Infants With X-Linked Hypohidrotic Ectodermal Dysplasia (XLHED) Phase 2
Completed NCT01342133 - Sweat Duct Imaging in Mother/Newborn Dyads N/A
Completed NCT01398397 - Medical Record Review of Hypohidrotic Ectodermal Dysplasia Clinical Phenotype N/A
Completed NCT01308333 - Investigation of Chronic Inflammatory Processes in Male Individuals With Hypohidrotic Ectodermal Dysplasia N/A
Completed NCT01135888 - Short Term Effects and Risks of Physical Exercise in Subjects With Hypohidrotic Ectodermal Dysplasia