E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Friedreich's ataxia.
Friedreich ataxia is the most frequent early-onset autosomal recessive hereditary ataxia. It is caused by a pathological expansion of a GAA repeat in the first intron of the frataxin gene (FXN) and results in decreased levels of FXN protein. FXN deficiency results in a relentlessly progressive neurodegenerative condition which frequently presents around puberty. Patients gradually lose coordination, become dysarthric and are frequently wheelchair-bound as adolescents. |
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E.1.1.1 | Medical condition in easily understood language |
Friedreich’s ataxia, an incurable disease, that starts in childhood and results in a progressive loss of coordination, slurred speech, difficulty swallowing and breathlessness due to heart failure. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Nervous System Diseases [C10] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10017374 |
E.1.2 | Term | Friedreich's ataxia |
E.1.2 | System Organ Class | 10010331 - Congenital, familial and genetic disorders |
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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 |
The primary objective of the study is to determine whether daily doses of nicotinamide are slowing disease progression in patients with Friedreich´s ataxia compared to placebo. Disease progression will be measured using the Scale for the Assessment and Rating of Ataxia (SARA). For this purpose patients will be given a score following assessment (physical examination) by a doctor on their impairment level.
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E.2.2 | Secondary objectives of the trial |
The secondary objective is to determine the change of secondary endpoints such as quality of life, functional motor and cognitive measures, clinician's and patient's global impression-change scales as well as frataxin protein level under treatment of daily doses of nicotinamide as compared with placebo in patients with Friedreich´s ataxia.
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Subjects, fulfilling the following inclusion criteria are suitable for participation in the study:
1. Patients must have a molecular genetic diagnosis of Friedreich’s ataxia with a GAA-repeat expansion on both alleles of the FXN gene and a SARA Score >7 and <28. 2. Patients must be ≥18 and <50 years old and have a weight of at least 50 kg. 3. Written informed consent prior to study participation 4. A female subject is eligible to participate if she is of: Non-childbearing potential, defined as pre-menopausal females with a documented tubal ligation or hysterectomy; or postmenopausal, defined as 12 months of spontaneous amenorrhea, or of childbearing potential and agrees to use of highly effective birth control methods (Pearl Index < 1).
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E.4 | Principal exclusion criteria |
Subjects, fulfilling one or more of the following exclusion criteria will not be included in the study:
1. Patients with any medical condition or illness that, in the opinion of the investigator, would interfere with study compliance and/or impair the patient’s ability to participate or complete the study. 2. Any uncontrolled medical or neurological/neurodegenerative condition (other than Friedreich’s ataxia). 3. Clinically significant psychiatric illness (e.g., uncontrolled major depression, schizophrenia, bipolar affective disorder) within 6 months prior to screening 4. Patients with significant clinical dysphagia. 5. Hypersensitivity to nicotinamide. 6. Patients known to be positive for human immunodeficiency virus (HIV). 7. Patients with a significant history of substance abuse (e.g. alcohol or drug abuse) within the previous six months before enrolment. 8. Patients with a history of severe allergies to medications. 9. Indication of impaired liver function as shown by an abnormal liver function profile at screening (e.g., repeated values of aspartate aminotransferase (AST), alanine aminotransferase (ALT), and bilirubin ≥3 × the upper limit of normal). 10. History of malignancy or carcinoma. The following exceptions may be made after discussion with the sponsor: • Subjects with cancers in remission more than 5 years prior to screening. • Subjects with a history of excised or treated basal cell or squamous carcinoma. • Subjects with prostate cancer in situ. 11. History or evidence of an autoimmune disorder, considered clinically significant by the Investigator or requiring chronic use of systemic corticosteroids or other immunosuppressants. 12. History of clinically significant cardiac disease (ejection fraction <40% (normal range 50-70%), cardiac insufficiency defined as New York Heart Association (NYHA) Class >2; clinically significant congenital or acquired valvular disease; symptomatic coronary disease such as prior myocardial infarction or angina, B-type natriuretic peptide (BNP) level increase more than 2x of the normal age and gender-dependent range; history of unstable arrhythmias, history of atrial fibrillation). 13. The subject received an investigational drug within 30 days prior to inclusion into this study. 14. Patients taking sodium valproate, tranylcypromine, or any other known histone deacetylase inhibitor. 15. Use of vitamin B1 (thiamine), withdrawal should be at least 3 months prior to screening or 5 half-lives, whichever is longer. 16. Use of vitamin B3 (nicotinamide), withdrawal should be at least 3 months prior to screening. 17. If patients are taking idebenone or coenzyme Q10 (CoQ), this should be stable over the last three months and not changed during the study. 18. The subject is unwilling or unable to provide written informed consent and to follow the procedures outlined in the protocol. 19. For subjects who will undergo an MRI: Any contraindications to MRI such as, but not limited to, cardiac pacemaker, implanted cardiac defibrillator, aneurysm clips, carotid artery vascular clamp, neurostimulator, implanted drug infusion devices, metal fragments or foreign objects in the eyes, skin or body, bone growth/fusion stimulator, cochlear, otologic implant, severe claustrophobia, or any condition that would counterindicate an MRI scan. 20. Patients participating in another pharmacological and non-pharmacological clinical trial, excluding natural history/observational studies, at start of the study or within the last 30 days before study start. 21. The subject is mentally or legally incapacitated. 22. Pregnant females as determined by positive (serum or urine) hCG test at Screening or prior to dosing. Participants of child-bearing age should use adequate contraception as defined in the study protocol. 23. Lactating females.
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E.5 End points |
E.5.1 | Primary end point(s) |
The primary objective of the study is to evaluate the efficacy of daily doses of nicotinamide in slowing disease progression as measured by changes in the Scale for the Assessment and Rating of Ataxia (SARA) as compared with placebo in patients with Friedreich ataxia.
The primary endpoint is therefore SARA, validated for Friedreich ataxia and shown to be the most suitable measure of disease progression in Friedreich ataxia.
Compared to placebo patients we estimate a reduction of disease progression (rated with SARA) by 50% i.e. 0.59/year in the treatment group, giving a mean difference after 2 years of 1.19. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
The endpoint (SARA scale) will be measured at screening, baseline, 1, 4, 8, 12, 18 and 24 months. |
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E.5.2 | Secondary end point(s) |
Secondary end points will include:
Quality of life (EQ5D, ADL), functional (SCAFI, CCFS), modified Friedreich’s Ataxia Ratings Scale (mFARS) and cognitive measures (MoCA), clinician’s and patient’s global impression-change scale (CGI-C, PGI-C), frataxin protein level, safety reasons, and survival/death
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
The above endpoints will be measured at baseline, 1, 4, 8, 12, 18 and 24 months. |
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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 | Yes |
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 | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
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 | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 2 |
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 | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 10 |
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 | 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
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The end of trial will be the date of the last scheduled visit of the last participant. |
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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 | 2 |
E.8.9.1 | In the Member State concerned months | 3 |
E.8.9.1 | In the Member State concerned days | 28 |
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 | 1 |
E.8.9.2 | In all countries concerned by the trial days | 0 |