ClinicalTrials.gg
CompletedNCT04126005Updated Apr 17, 2026

Natural History Study of Patients With Canavan Disease (CANinform Study)

An observational study in Canavan Disease, sponsored by Aspa Therapeutics. Completed at 3 sites in 2 countries. Per ClinicalTrials.gov, last updated 2026-04-17.

Sponsored by Aspa Therapeutics · Observational

Study type
Observational
Model
Cohort
Time perspective
Other
Enrollment
67
Sex
All
01

Study summary

This study uses medical records that allow retrospective data extraction of critical milestone and motor function data. In addition, prospective assessments collect data relevant to the natural history of Canavan disease in children.

Read the detailed description

The CANinform natural history study is the first multinational effort to rigorously gather both retrospective and prospective data from this patient population. Data collection includes extraction of retrospective data from medical records of living and deceased patients, and collection of prospective, longitudinal data from living patients and their parent(s)/caregiver(s). Motor function assessments are performed remotely in the home via video or in the clinic by qualified study team members. Families will be invited to attend clinic visits and/or will be followed remotely by the clinical site for approximately 3 years.

02

Conditions studied

  • Canavan Disease

Keywords

  • Canavan Disease
  • AAV
  • AAV9
  • Gene therapy
  • Aspartoacylase
  • ASPA
  • ASPA gene
  • rAAV9
  • ACY2
  • Aminoacylase 2
  • Spongy degeneration
  • N-acetyl-L-aspartic acid (NAA)
  • N-acetylaspartate
  • Rare disease
  • Inherited Metabolic Disorders
  • Leukodystrophy
  • Leukoencephalopathies
  • Autosomal Recessive Disorder
  • Neurodevelopmental diseases
  • CANinform Study
03

In context

Rare Diseases

592 studies on the registry are indexed under Rare Diseases; 125 are open to participants now.

This study's enrollment of 67 is below the median of 133 across 208 observational studies indexed under Rare Diseases.

Browse Rare Diseases studies →

Lead sponsor

Aspa Therapeutics is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Living and deceased patients with Canavan disease

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Meet age criteria of a specific cohort.
  2. Confirmed clinical and biochemical diagnosis of Canavan disease.
  3. Available medical records since birth that permit documentation of disease characteristics and developmental milestones.
  4. Parent and/or legal guardian is able to read, understand, and sign the .

Exclusion criteria

Exclusion Criteria:

1. Patient does not meet the Inclusion Criteria.

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Observational model
Cohort
Time perspective
Other
Enrollment
67 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Cohort 1 (Age < 18 Months)

    * Motor function assessments (remote or in-clinic) every 2 months * Clinic assessments every 6 months

  • Cohort 2 (Age ≥ 18 Months - 3 Years)

    * Motor function assessments (remote or in-clinic) every 4 months * Clinic assessments every 6 months

  • Cohort 3 (Age > 3 - 5 Years)

    * Motor function assessments (remote or in-clinic) every 6 months * Clinic assessments every 6 months

  • Cohort 4 (Age > 5 Years)

    * Motor function assessments (remote or in-clinic) 12 months * Clinic assessments every 12 months

  • Cohort 5 (Deceased)

    • The patient's medical history records will be reviewed. In addition, a parent interview will be performed.

06

What researchers measure

Primary outcomes

  1. To characterize the natural history of Canavan disease

    To enhance the understanding of the natural history of Canavan disease through retrospective data collection from patient medical records and prospective data collection from living patients, including: phenotypic characteristics and variability, genotype characteristics and variability, and disease progression and natural history.

    Time frame: approximately 3 years

07

Study locations

3 sites
  • UCSF Benioff Children's Hospital Oakland
    Oakland, California 94609, United States
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
  • University Medical Center Hamburg-Eppendorf
    Hamburg, 20246, Germany
08

References and documents

Individual participant data

Plan to share: Yes — Data will be made available for researchers using a defined process.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2019 to primary completion in May 2025, 67 months.

Of 88 observational studies under Rare Diseases, half reached primary completion within 118 months of starting (the median), counting those still running; a quarter within 39 and three quarters within 183. This study's 67 months is below that.

Rare Diseases covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2019
First posted
Oct 14, 2019
StartActual
Oct 10, 2019
Primary completionActual
May 21, 2025
CompletionActual
Aug 31, 2025
Last update
Apr 17, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 17, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04126005
Lead sponsor
Aspa Therapeutics
Responsible party
Sponsor
First posted
Oct 14, 2019
Start date
Oct 10, 2019
Primary completion
May 21, 2025
Completion
Aug 31, 2025
Last update
Apr 17, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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