Recruiting NCT04712812

Registry and Natural History Study for Early Onset Hereditary Spastic Paraplegia

— Observational Hereditary Spastic Paraplegia SPG47 SPG50 SPG51

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied: This is an observational study: the protocol does not assign a study treatment.
Who it may be relevant to: Registry conditions: Hereditary Spastic Paraplegia, SPG47, SPG50, SPG51. Basic parameters: up to 30 years · All.
What needs checking: Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place: United States
Next step: Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

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Official title

Registry and Natural History Study for Early Onset Hereditary Spastic Paraplegia (HSP)

Overview

The Registry and Natural History Study for Early Onset Hereditary Spastic Paraplegia (HSP) is focused on gathering longitudinal clinical data as well as biological samples (skin and/or blood and/or saliva) from male and female patients, under the age of 30, who exhibited early onset symptoms of HSP with (1) a clinical diagnosis of hereditary spastic paraplegia and (2) the presence of variants in HSP related genes and/or be a relative of a person with such a diagnosis. Currently, the treatment for this disorder is generally symptomatic and available therapies improve quality of life, but are grossly inefficient in slowing the disease progression. Access to the registry information will be limited to the study staff who are responsible for recruitment and maintenance of the registry. We hope that recruitment into the registry for studies will advance knowledge of the causes, clinical course, diagnosis, and treatment of these conditions.

Detailed description

The hereditary spastic paraplegias (HSP) are a group of more than 80 neurodegenerative diseases that lead to progressive neurological decline. Collectively, the HSPs present the most common cause of inherited spasticity and associated disability.

We aim to delineate the core clinical, imaging, and molecular features of pediatric onset hereditary spastic paraplegia. This registry and natural history study will facilitate an early diagnosis, enables counseling and anticipatory guidance of affected families and will help define clinically meaningful endpoints for future interventional trials. Samples will be collected for the purpose of molecular and cellular investigation that will help identify biomarkers and novel targets for therapy. The samples and clinical information will be housed in the Translational Neuroscience Center and a secure REDcap database, respectively; both located in Boston Children's Hospital (BCH), but will be available to investigators around the world after approval.

The objectives of this protocol are to (1) To systematically document the clinical presentation and natural history of early-onset forms of HSP and (2) To facilitate an early diagnosis, enable counseling and anticipatory guidance of affected families and help define clinically meaningful endpoints for future interventional traits.

Specifically, the aims are to:

1. Establish the disease spectrum through a cross-sectional analysis of clinical, imaging and molecular data 2. Establish the natural history of early-onset HSP through longitudinal clinician- and patient-reported outcome measures 3. Create a biorepository (blood samples, fibroblasts, induced pluripotent stem cells) 4. Create a registry that allows for re-identification and re-contact of participants by appropriate investigators

Primary outcome measures

Establishment of disease spectrum [Time frame: Through study completion, an average of 1 year]
Establishment of longitudinal data [Time frame: Through study completion, an average of 1 year]
Creation of biorepository [Time frame: Through study completion, an average of 1 year]
Creation of patient registry [Time frame: Through study completion, an average of 1 year]

Eligibility criteria

Inclusion criteria

Onset of hereditary spastic paraplegia symptoms before the age of 18 years
Under the age of 30 years old
Must have a genetically confirmed variant in HSP-related genes and a relative of an individual with a confirmed diagnosis (if applicable).

Exclusion criteria

Not having such a diagnosis and/or not being related to such individual

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: Yes

Study design

Observational model: Cohort

Study locations

United States · 1 center

Boston Children's Hospital — Boston

Publications

Agianda HAP, Kim HM, Battaglia N, Rong J, Tam A, Gonzalez Saez-Diez E, Boerkoel CF, Saffari A, Quiroz V, Schierbaum L, Zaman Z, Bernardi K, Ebrahimi-Fakhari D. Diagnostic Utility of the ATG9A Ratio in AP-4-Associated Hereditary Spastic Paraplegia. Ann Clin Transl Neurol. 2026 Apr;13(4):834-839. doi: 10.1002/acn3.70308. Epub 2026 Jan 5. PMID 41491634
Schmidt HJD, Battaglia N, Rong J, Tam A, Carty S, Quiroz V, Yang K, Zaman Z, Schierbaum L, Bernardi K, Alecu JE, Ebrahimi-Fakhari D. Health-Related Quality of Life in Rare Forms of Childhood-Onset Hereditary Spastic Paraplegia. Ann Clin Transl Neurol. 2026 Jan;13(1):193-199. doi: 10.1002/acn3.70244. Epub 2025 Nov 6. PMID 41199121

Identifiers

NCT: NCT04712812 · P00033016

Primary sources (government registries)

ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗