Open-label, Long-term, Extension Treatment Using Intra-Erythrocyte Dexamethasone Sodium Phosphate in Patients With Ataxia Telangiectasia Who Participated in the IEDAT-02-2015 Study (OLE-IEDAT)
Ataxia Telangiectasia
About this trial
This is an interventional treatment trial for Ataxia Telangiectasia
Eligibility Criteria
Inclusion Criteria:
- Patient completed the double-blind period in the IEDAT-02-2015 trial and must have completed the final (Visit 15/Month 12) efficacy assessments of IEDAT-02-2015.
- Patient tolerated the study medication, without any evidence of steroid adverse events, or treatment-related severe/ serious adverse events
- Body weight > 15 kg.
- The patient and his/her parent/caregiver (if below the age of consent), or a legal representative, has provided written informed consent to participate. If consent is provided solely by the caregiver in accordance with local regulations, the patient must provide assent to participate in the study
- Patient does not present safety contraindication for continuation of treatment, as determined by the Principal Investigator (PI) according to the procedures described below.
Procedure for selecting patients for further treatment in IEDAT-03-2018:
The Principal Investigator will ask all patients who meet the above requirements, and determine their interest in continuing to receive treatment with the study medication in a new protocol. The Principal Investigator will then determine the eligibility of the patients on the basis of his/her clinical judgement of patients' status and their safety.
Exclusion Criteria:
General
Females that are
- pregnant, or are breast-feeding (for EU countries only);
- of childbearing potential, pregnant, or are breast-feeding (for US and Rest of World countries).
Females of childbearing potential using adequate birth control, as determined by their Health Care Provider, will be eligible.
- A disability that may prevent the patient from completing all study requirements.
Current participation in a clinical study with another investigational drug.
Medical History and Current Status
- CD4+ lymphocytes count <400/mm3 (for patients 6 years of age) or <200/mm3 (for patients >6 years).
- Current neoplastic disease.
- Severe impairment of the immunological system.
- Severe or unstable pulmonary disease.
- Uncontrolled diabetes. Patients with diabetes that has been stabilized (i.e. no hypoglycemic or hyperglycemic episodes in the past 3 months) will be eligible.
- Any other severe, unstable, or serious disease or condition that in the Investigator's opinion would put the patient at risk for imminent lifethreatening morbidity, need for hospitalization, or mortality.
- Eligibility of patients with abnormal laboratory test values will be determined by the Investigator.
- Confirmed hemoglobinopathies, e.g. hemoglobin C disease, sickle cell anemia, or thalassemia.
- Moderate or severe renal and/or hepatic impairment.
Patients who experienced moderate/ severe steroid side effects, or moderate/ severe adverse events associated with the study medication administered in the IEDAT-02 study.
Prior/Concomitant Medication
- Requires treatment with an oral or parenteral steroid. Treatment with inhaled or intranasal steroids for asthma or allergies, as well as use of topical steroids will be permitted.
- Requires any other concomitant medication prohibited by the protocol.
- Use of any drug that is a strong inducer/inhibitor of CYP3A4.
Sites / Locations
- Ataxia Center and HD Center of Excellence - UCLA
- Division of Pediatric Allergy and Immunology - Johns Hopkins Hospital
- Cincinnati Children's Hospital Medical Center
- Department of Pediatrics Division of Child and Adolescent Neurology Mitochondrial Clinic - University of Texas Medical School
- Department of Neurology Royal Children's Hospital
- Laboratory of Pediatric Immunology UZ Leuven
- Klinik für Kinder- und Jugendmedizin, Allergologie, pneumologie und Mukoviszidose, Universitätsklinikum Frankfurt
- National Institute of Mental Health and Neurosciences (NIMHANS) Department of Neurology
- Vijaya Health Centre Department of Neurology
- Nizam's Institute of Medical Sciences Department of Neurology
- Jaslok Hospital and Research Center Department of Pediatric Neurology
- P.D. Hinduja National Hospital and Medical Research Centre Department of Pediatric Neurology
- All India Institute of Medical Sciences Child Neurology Division Department of Pediatrics
- Dipartimento Neuroscienze umane e salute mentale, Policlinico Umberto I Università La SapienzaRecruiting
- Department of Clinical Immunology - The Children's Memorial Health Institute
- Servicio de Neurolgia Pediatrica, Hospital Materno-Infantil La Paz
- Razi Hospital, Clinical Investigation Center-NeuroscienceRecruiting
Arms of the Study
Arm 1
Experimental
active drug
~14-22 mg dexamethasone sodium phosphate (DSP)