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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT06140329
Registration number
NCT06140329
Ethics application status
Date submitted
15/11/2023
Date registered
18/11/2023
Titles & IDs
Public title
Natural History of Autosomal Dominant Optic Atrophy (ADOA), Caused by OPA1 Mutation
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Scientific title
A Natural History Study in Patients With Genetically Confirmed Diagnosis of Autosomal Dominant Optic Atrophy (ADOA), Caused by OPA1 Mutation
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Secondary ID [1]
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PYC-001
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Autosomal Dominant Optic Atrophy
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Optic Atrophy, Autosomal Dominant
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Optic Atrophies, Hereditary
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Kjer Optic Atrophy
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Condition category
Condition code
Musculoskeletal
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Other muscular and skeletal disorders
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Eye
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Diseases / disorders of the eye
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Neurological
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Other neurological disorders
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Human Genetics and Inherited Disorders
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Other human genetics and inherited disorders
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Neurological
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Neurodegenerative diseases
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Other
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Research that is not of generic health relevance and not applicable to specific health categories listed above
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Best-corrected High Contrast Visual Acuity (HCVA)
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Assessment method [1]
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Best-corrected high contrast visual acuity (HCVA) for both distance and near will be evaluated using the ETDRS electronic visual acuity charts and the MNRead acuity chart
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Timepoint [1]
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Baseline through Year 2
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Primary outcome [2]
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Low Contrast Visual Acuity (LCVA)
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Assessment method [2]
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Low contrast visual acuity (LCVA) for both distance and near will be evaluated using the low contrast ETDRS letter chart
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Timepoint [2]
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Screening through Year 2
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Primary outcome [3]
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Contrast Sensitivity
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Assessment method [3]
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Contrast sensitivity recorded using the Pelli-Robson chart
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Timepoint [3]
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Baseline through Year 2
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Primary outcome [4]
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Color Vision
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Assessment method [4]
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Color vision tested using the Hardy Rand Rittler test
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Timepoint [4]
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Baseline through Year 2
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Primary outcome [5]
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Retinal Thickness
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Assessment method [5]
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Change retinal thickness is measured using spectral domain optical coherence tomography (SD-OCT), as measured by the central reading center (SD-OCT), as measured by the central reading center
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Timepoint [5]
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Baseline through Year 2
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Primary outcome [6]
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Ellipsoid Zone (EZ) Volume
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Assessment method [6]
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Change in EZ volume measured using spectral domain optical coherence tomography (SD-OCT), as measured by the central reading center
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Timepoint [6]
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Baseline through Year 2
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Primary outcome [7]
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Ellipsoid Zone (EZ) Area
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Assessment method [7]
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Change in EZ area measured using spectral domain optical coherence tomography (SD-OCT), as measured by the central reading center
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Timepoint [7]
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Baseline through Year 2
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Primary outcome [8]
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Visual Field Sensitivity
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Assessment method [8]
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Visual field sensitivity measured by automated static perimetry
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Timepoint [8]
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Baseline through Year 2
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Primary outcome [9]
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Multifocal Visual Evoked Potential (mfVEP)
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Assessment method [9]
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The waveform of the evoked responses, the latency, and amplitude are analyzed.
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Timepoint [9]
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Baseline through Year 2
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Primary outcome [10]
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Pregnancy Test
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Assessment method [10]
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A urine human chorionic gonadotropin (hCG) pregnancy conducted in all women of childbearing potential (WOCBP) \> 12 years of age at baseline. If a urine test is positive, the DARC procedure will not be performed.
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Timepoint [10]
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Baseline
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Primary outcome [11]
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DARC (Detection of Apoptosing Retinal Cells)
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Assessment method [11]
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The DARC test is conducted using an IV injection of fluorescently labelled Annexin V (called ANX776). Individual stressed and apoptotic retinal cells are visible as white spots on the image for DARC count, which are quantified using a confocal scanning laser ophthalmoscope using the indocyanine green angiography (ICGA) settings.
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Timepoint [11]
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Baseline through Year 2
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Primary outcome [12]
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Flavoprotein Fluorescence (FPF)
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Assessment method [12]
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Functional imaging of mitochondria using Flavoprotein Fluorescence.
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Timepoint [12]
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Baseline through Year 2
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Primary outcome [13]
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Retinal Abnormalities
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Assessment method [13]
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Ultrawide fundus photography is conducted OU to assess retinal abnormalities
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Timepoint [13]
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Baseline through Year 2
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Primary outcome [14]
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Adverse Events (AEs)
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Assessment method [14]
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Frequency of ocular adverse events (AEs)
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Timepoint [14]
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Screening through Year 2
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Primary outcome [15]
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Genomic Analysis for Study Eligibility
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Assessment method [15]
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OPA1 genetic testing at screening visit
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Timepoint [15]
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Screening
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Primary outcome [16]
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Vital signs
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Assessment method [16]
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Vital signs assessments (pulse rate, body temperature, systolic and diastolic blood pressure, and respiratory rate) performed in participants undergoing the DARC assessment only.
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Timepoint [16]
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Baseline through Year 2
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Secondary outcome [1]
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To determine the outcome measures that are associated with ADOA disease progression.
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Assessment method [1]
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To understand the disease progression in participants with confirmed OPA1 mutation-associated ADOA determined by changes in structural and functional markers from the primary outcome within the study period.
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Timepoint [1]
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Baseline through Year 2
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Eligibility
Key inclusion criteria
* Participants and/or their parent(s)/guardian(s) must have given written informed consent before any study-related activities are carried out and must be able to understand the full nature and purpose of the trial, including possible risks and adverse effects. Assent, where appropriate, will be obtained according to institutional guidelines.
* Males and females, 8 years of age and above.
* Have a clinical diagnosis of OPA1 mutation (haploinsufficiency) associated ADOA.
* No other ocular pathology.
* Patients with best-corrected visual acuity (BCVA) of between 20/40 (70 Early Treatment of Diabetic Retinopathy Study [ETDRS] letters) and 20/160 (39-43 ETDRS letters)
* Willing and able to comply with all study assessments and adhere to the protocol schedule and restrictions.
* For sites performing the Detection of apoptosis in retinal cells (DARC) procedure, and in volunteers = 12 years only:
1. Female volunteers must:
I. Be of non-child-bearing potential at least 6 weeks before the screening visit or postmenopausal (where postmenopausal is defined as no menses for 12 months without an alternative medical cause), or
II. If of childbearing potential, must:
* Have a negative pregnancy test at the screening visit and prior to each administration of ANX776, and
* Agree not to attempt to become pregnant or donate ova from signing the consent form until at least 30 days after the last dose of ANX776, and
* Agree to use adequate contraception (defined as the use of a condom by the male partner combined with the use of a highly effective method of contraception from one month prior to screening until at least 30 days after the last dose of ANX776, if not exclusively in a same-sex relationship or abstinent as a committed lifestyle.
2. Male volunteers must:
* Agree not to donate sperm from signing the consent form until at least 90 days after the last dose of ANX776, and
* If engaging in sexual intercourse with a female partner who could become pregnant, agree to use adequate contraception (defined as the use of a condom combined with the use of a highly effective method of contraception) from signing the consent form until at least 90 days after the last dose of study drug.
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Minimum age
8
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Participant has a known allergy to ANX776 or any of its excipients.
* Have any uncontrolled systemic disease that, in the opinion of the Investigator, would preclude participation in the study, which includes but is not limited to, infection, uncontrolled elevated blood pressure, cardiovascular disease, or glycemic control issues, or any other medical condition that may put the participant at risk due to study procedures. Note: comorbidities relevant to the pathogenesis of OPA1 associated ADOA (including hearing loss, peripheral neuropathy, myopathy, and ataxia) are acceptable.
* Have mutations in genes that cause ADOA, other than OPA1 (for example in case of dominant negative ADOA) and ADOA Plus.
* Within 3 months prior to Baseline (Visit 2), have undergone any vitreoretinal surgery (scleral buckle, pars plana vitrectomy, retrieval of a dropped nucleus or intraocular lens, radial optic neurotomy, sheathotomy, cyclodestructive procedures or multiple filtration surgeries [2 or more]) or any other ocular surgery.
* Have ocular media opacity or poor pupillary dilation prohibiting quality ophthalmic evaluation or photography, as assessed by the Investigator.
* Have used any investigational drug or device within 90 days or 5 estimated half-lives of Visit 2, whichever is longer, or plan to participate in another study of a drug or device during the study period. Participation in observational trials is allowable based on Investigator discretion and consultation with the Medical Monitor. It is assumed that the observational trial evaluations would not interfere with participation in this study.
* Have received any prior cell or gene therapy for a retinal condition.
* Have a recent history (<6 months) of or current excessive recreational drug or alcohol use, in the opinion of the Investigator. Note: excessive alcohol use is defined as regular consumption of > 10 standard drinks per week or > 4 standard drinks per day, where 1 standard drink is defined as 10 grams of pure alcohol.
* Any other condition or prior therapy that in the opinion of the Investigator would make the volunteer unsuitable for this study, including inability to cooperate fully with the requirements of the study protocol or likelihood of noncompliance with any study requirements.
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
28/02/2024
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
1/06/2026
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Actual
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Sample size
Target
40
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
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Recruitment hospital [1]
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Sydney Eye Hospital - Sydney
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Recruitment postcode(s) [1]
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- Sydney
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
PYC Therapeutics
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
The purpose of this study is to characterize the disease progression of confirmed OPA1 mutation-associated autosomal dominant optic atrophy (ADOA) by evaluating the changes in ocular structural and functional outcomes.
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Trial website
https://clinicaltrials.gov/study/NCT06140329
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Sreenivasu Mudumba, PhD
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Address
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PYC Therapeutics
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Alistair Mallard
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Address
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Country
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Phone
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+61-8 8249 4788
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT06140329