SNPMiner Trials by Shray Alag


SNPMiner Trials: Mutation Report


Report for Mutation T14484C

Developed by Shray Alag, 2019.
SNP Clinical Trial Gene

There are 3 clinical trials

Clinical Trials


1 Historical Case Record Survey of Visual Acuity Data From Patients With Leber's Hereditary Optic Neuropathy (LHON)

The purpose of this survey is to collect visual acuity data from patients with LHON in order to establish the clinical course (natural history) and visual acuity outcomes in patients with a genetically confirmed diagnosis of LHON. In addition, this survey will generate data that will serve as comparator for the open-label study SNT-IV-006.

NCT02796274 Leber's Hereditary Optic Neuropathy (LHON)
MeSH: Optic Nerve Diseases Optic Neuritis Optic Atrophy, Hereditary, Leber
HPO: Leber optic atrophy Optic neuritis Retrobulbar optic neuritis

Inclusion Criteria: 1. age ≥ 12 years 2. the onset of symptoms is dated after 1999 and is well documented (at least month of onset of symptoms is known for each eye) 3. at least two VA assessments are available within 5 years of onset of symptoms and prior to idebenone use 4. have a genetic diagnosis for LHON for one of the following mitochondrial DNA (mtDNA) mutations: G11778A, G3460A, T14484C Exclusion Criteria: 1. any participation in an interventional clinical trial after the onset of symptoms 2. any other cause of visual impairment (e.g. --- G11778A --- --- G3460A --- --- T14484C ---

glaucoma, diabetic retinopathy, AIDS related visual impairment, cataract, macular degeneration, etc.) or any active ocular disorder (uveitis, infections, inflammatory retinal disease, thyroid eye disease, etc.) during the data collection period Inclusion Criteria: 1. age ≥ 12 years 2. the onset of symptoms is dated after 1999 and is well documented (at least month of onset of symptoms is known for each eye) 3. at least two VA assessments are available within 5 years of onset of symptoms and prior to idebenone use 4. have a genetic diagnosis for LHON for one of the following mitochondrial DNA (mtDNA) mutations: G11778A, G3460A, T14484C Exclusion Criteria: 1. any participation in an interventional clinical trial after the onset of symptoms 2. any other cause of visual impairment (e.g. --- G11778A --- --- G3460A --- --- T14484C ---

Primary Outcomes

Description: In eyes with a VA assessment made ≤1 year after the onset of symptoms: Proportion of eyes with clinically relevant recovery of VA from Baseline or in which Baseline VA better than 1.0 logarithm of the minimal angle of resolution (logMAR) was maintained at 12 months (primary time point)

Measure: Proportion of eyes with clinically relevant recovery or clinically relevant stabilization of VA

Time: 12 months

2 A Double-Blind, Randomised, Placebo-Controlled Study of the Efficacy, Safety and Tolerability of Idebenone in the Treatment of Patients With Leber's Hereditary Optic Neuropathy

This study is meant to assess the effectiveness of idebenone on visual function measures in patients with Leber's Hereditary Optic Neuropathy over a 6 months period.

NCT00747487 Leber's Hereditary Optic Neuropathy Drug: Idebenone Drug: Placebo
MeSH: Peripheral Nervous System Diseases Optic Nerve Diseases Optic Neuritis Optic Atrophy, Hereditary, Leber
HPO: Abnormal peripheral nervous system morphology Leber optic atrophy Optic neuritis Peripheral neuropathy Polyneuropathy Retrobulbar optic neuritis

Inclusion Criteria: - Age > or = 14 years and < 65 years - Impaired visual acuity in at least one eye due to LHON - Onset of visual loss due to LHON lies five years or less prior to Baseline - Confirmation of either G11778A, T14484C or G3460A LHON mtDNA mutations at >60% in blood - No explanation for the visual failure besides LHON - Body weight ≥ 45 kg - Negative urine pregnancy test at Screening and at Baseline (women of childbearing potential). --- G11778A --- --- T14484C ---

Exclusion Criteria: - Treatment with Coenzyme Q10 or idebenone within 1 month prior to Baseline - Pregnancy and/or breast-feeding - Weekly alcohol intake 35 units (men) or 24 units (women) - Current drug abuse - Clinically significant abnormalities of clinical haematology or biochemistry including, but not limited to, elevations greater than 2 times the upper limit of normal of AST, ALT or creatinine - Participation in another clinical trial of any investigational drug within 3 months prior to Baseline - Other factor that, in the investigator's opinion, excludes the patient from entering the study Inclusion Criteria: - Age > or = 14 years and < 65 years - Impaired visual acuity in at least one eye due to LHON - Onset of visual loss due to LHON lies five years or less prior to Baseline - Confirmation of either G11778A, T14484C or G3460A LHON mtDNA mutations at >60% in blood - No explanation for the visual failure besides LHON - Body weight ≥ 45 kg - Negative urine pregnancy test at Screening and at Baseline (women of childbearing potential). --- G11778A --- --- T14484C ---

Primary Outcomes

Measure: Best recovery of logMAR visual acuity between baseline and Week 24 in either right or left eye

Time: 24 weeks

Secondary Outcomes

Measure: Change in the patient's best logMAR visual acuity between baseline and week 24

Time: 24 weeks

Measure: Change in scotoma area in both eyes

Time: Day -1, Week 4, Week 12, Week 24

Measure: Change in optic nerve fibre layer thickness in both eyes

Time: Day -1, Week 4, Week 12, Week 24

Measure: Colour contrast sensitivity in both eyes (in a subset of patients)

Time: Day -1, Week 4, Week 12, Week 24

Measure: logMAR visual acuity as a continuous variable in both eyes

Time: Screening, Day -1, Week 4, Week 12, Week 24, Week 28

Measure: Clinical Global Impression of Change

Time: Week 4, Week 12 and Week 24

Measure: Change in Health-Related Quality of Life (HRQOL)

Time: Day -1, Week 4, Week 12, Week 24

Measure: Change in self-reported general energy levels

Time: Day -1, Week 4, Week 12, Week 24, Week 28

Measure: Proportion of patients in which visual acuity in the initially least affected eye does not deteriorate to 1.0 log MAR or more ( in LHON patients with eye still less affected than 0.5 logMAR at trial entry)

Time: 24 weeks

Measure: Plasma levels of idebenone matched to measures of efficacy and safety

Time: 24 weeks

Measure: • Best visual acuity at Week 24 (best eye at Week 24) compared to best visual acuity at Baseline (best eye at Baseline)

Time: 24 weeks

Measure: • Count of eyes/ patients for which the visual acuity improves between baseline and week 24

Time: 24 weeks

3 External Natural History Controlled, Open-Label Intervention Study to Assess the Efficacy and Safety of Long-Term Treatment With Raxone® in Leber's Hereditary Optic Neuropathy (LHON)

LEROS is an open-label interventional Phase IV study, designed to further assess the efficacy and safety of Raxone® in the long-term treatment of LHON patients.

NCT02774005 Leber's Hereditary Optic Neuropathy (LHON) Drug: Idebenone
MeSH: Optic Nerve Diseases Optic Neuritis Optic Atrophy, Hereditary, Leber
HPO: Leber optic atrophy Optic neuritis Retrobulbar optic neuritis

Inclusion Criteria: 1. Impaired visual acuity in affected eyes due to LHON 2. No explanation for visual loss besides LHON 3. Age more or equal 12 years 4. Onset of symptoms ≤5 years of Baseline 5. Confirmation of either G11778A, G3460A or T14484C LHON mtDNA (for the ITT population, not required for enrolment) 6. Written informed consent obtained from the patient 7. Ability and willingness to comply with study procedures and visits 8. Women of Childbearing Potential (WCBP) who have a negative urine or serum pregnancy test at Baseline visit and who are willing to use a highly effective contraceptive measure and maintain it until treatment discontinuation. --- G11778A --- --- G3460A --- --- T14484C ---

8. Women who are pregnant or have a positive pregnancy test at Baseline visit 9. Women who are breastfeeding Inclusion Criteria: 1. Impaired visual acuity in affected eyes due to LHON 2. No explanation for visual loss besides LHON 3. Age more or equal 12 years 4. Onset of symptoms ≤5 years of Baseline 5. Confirmation of either G11778A, G3460A or T14484C LHON mtDNA (for the ITT population, not required for enrolment) 6. Written informed consent obtained from the patient 7. Ability and willingness to comply with study procedures and visits 8. Women of Childbearing Potential (WCBP) who have a negative urine or serum pregnancy test at Baseline visit and who are willing to use a highly effective contraceptive measure and maintain it until treatment discontinuation. --- G11778A --- --- G3460A --- --- T14484C ---

Primary Outcomes

Description: Proportion of eyes with clinically relevant recovery of visual acuity (VA) from Baseline or in which Baseline VA better than 1.0 logMAR was maintained at Month 12 in patients treated with Raxone® ≤1 year after the onset of symptoms, compared to matching external natural history control group

Measure: Proportion of eyes with clinically relevant recovery of visual acuity from Baseline

Time: 12 months


HPO Nodes


Retrobulbar optic neuritis
Genes 17
HLA-B IL10 FAS ERAP1 IL12A IL12A-AS1 KLRC4 CCR1 UBAC2 C4A MEFV IL23R NLRC4 NLRP3 STAT4 TLR4 NOD2
Leber optic atrophy
Genes 11
COX3 CYTB ND1 ND2 TBC1D24 ND4 ND4L ATP6 ND5 ND6 CPLX1
Polyneuropathy
Genes 52
SLC12A6 MYD88 ERCC8 SH3TC2 DMXL2 LDB3 RPIA SETX ERCC6 MYOT ATP7B ATP6 PSAP DHH COX3 ARL6IP1 CYTB GCLC AIFM1 PDK3 SEPTIN9 DGUOK PDYN C12ORF65 ND1 ND2 ND4 ND4L ND5 FAM126A ND6 CD59 PEX12 CYP7B1 ALAD FUCA1 ABCD1 NGLY1 PEX11B GRM1 SLC25A19 ABHD12 TTR PIK3R5 NAGS COQ7 EDNRB GSN TBC1D24 PMM2 SNAP29 PRPS1