Spastic Paraplegia - Centers of Excellence Research Network (SP-CERN)

March 16, 2026 updated by: Darius Ebrahimi-Fakhari, Boston Children's Hospital

Spastic Paraplegia - Centers of Excellence Research Network (SP-CERN) - Natural History Study Pilot

The Spastic Paraplegia - Centers of Excellence Research Network (SP-CERN) is a collaborative research consortium dedicated to advancing the understanding, diagnosis, and treatment of hereditary spastic paraplegia (HSP) and primary lateral sclerosis (PLS). Aims of the consortium are to a) perform natural history studies of HSP subtypes, b) discover and validate biomarkers and clinician- and patient-reported outcome measures, c) uncover HSP's molecular pathophysiology and develop rational therapeutic targets, and d) perform sufficiently powered clinical trials. The current pilot study is aimed at enrolling 100 individuals with hereditary spastic paraplegia type 4 (SPG4) or hereditary spastic paraplegia type 5A (SPG5A).

Study Overview

Detailed Description

The hereditary spastic paraplegias (HSPs) include over 80 rare neurogenetic disorders, collectively representing the most prevalent cause of inherited spasticity and related disabilities globally. In all forms of HSP, there is a progressive deterioration of the long axonal tracts, resulting in substantial motor dysfunction and various other symptoms. Primary lateral sclerosis (PLS) is a related, degenerative neurological disorder characterized by the progressive deterioration of upper motor neurons. Both conditions result in muscle weakness and spasticity, with significant morbidity and impact on quality of life.

The Spastic Paraplegia - Centers of Excellence Research Network (SP-CERN) is a collaborative research consortium dedicated to advancing the understanding, diagnosis, and treatment of hereditary spastic paraplegia (HSP) and primary lateral sclerosis (PLS). SP-CERN provides a registry and natural history study across the whole age span, a biobank, and a genome archive. This will set the stage for a multitude of opportunities for improved diagnosis and trial readiness. A second objective is to harmonize this effort with similar consortia, especially in Europe, in addition to Asia, South America, and Africa, to help accelerate basic and clinical research on HSP and PLS on a global level. In summary, SP-CERN will support critical research infrastructure for collaborative high-quality research on HSP and PLS in North America and beyond.

General aims include:

A. Establish a shared clinical database, a repository of biospecimen samples, and a central database for the storage of all genetic data in SP-CERN.

B. Synchronize and harmonize collaborations between institutions, clinical sites, and international collaborators through the development of a central research protocol in order to standardize outcome measures and maximize the quality of research and data to ensure clinical trial readiness by regulatory standards.

C. Build comprehensive programs for advancements in diagnosis, provide more opportunities for innovative treatments, and increase access to high-quality healthcare for HSP and PLS patients.

Specific aims for this first pilot study are:

1a. Enrollment of 100 individuals with genetically-confirmed hereditary spastic paraplegia type 4 (SPG4) or hereditary spastic paraplegia type 5A (SPG5A) in the shared clinical database.

1b. Biobanking of blood samples from 100 individuals with SPG4 or SPG5A in a shared biobank.

Study Type

Observational

Enrollment (Estimated)

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Florida
      • Miami, Florida, United States, 33136
        • Not yet recruiting
        • University of Miami Miller School of Medicine
        • Contact:
          • Stephan Züchner, MD, PhD.
          • Phone Number: 305-989-7835
        • Contact:
          • Yeisha Arcia, BS.
    • Iowa
      • Iowa City, Iowa, United States, 52242
        • Not yet recruiting
        • University of Iowa Carver College of Medicine
        • Contact:
          • Michael Shy, MD.
          • Phone Number: 319-356-7199
        • Contact:
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
      • Boston, Massachusetts, United States, 02215
        • Not yet recruiting
        • Massachusetts General Hospital
        • Contact:
          • Craig Blackstone, MD, PhD.
          • Phone Number: 866-934-3881
    • Michigan
      • Ann Arbor, Michigan, United States, 48109
        • Not yet recruiting
        • University of Michigan School of Medicine
        • Contact:
          • John Fink, MD.
    • New York
      • New York, New York, United States, 10032
        • Not yet recruiting
        • Columbia University - Irving Medical Center
        • Contact:
          • Matthew Harms, MD.
    • Ohio
      • Cincinnati, Ohio, United States, 45229-3039
        • Not yet recruiting
        • Cincinnati Children's Hospital Medical Center
        • Contact:
          • Donald Gilbert, MD.
          • Phone Number: 513-636-2724
        • Contact:
    • Texas
      • Dallas, Texas, United States, 75219
        • Not yet recruiting
        • Scottish Rite for Children
        • Contact:
          • Michelle Christie, MD.
          • Phone Number: 214-559-7830
        • Contact:
      • Houston, Texas, United States, 77035
        • Not yet recruiting
        • Texas Children's Hospital
        • Contact:
          • Daniel Calame, MD, PhD.
          • Phone Number: 832-492-4843
        • Contact:
    • Washington
      • Seattle, Washington, United States, 98105
      • Seattle, Washington, United States, 98195
        • Not yet recruiting
        • University of Washington School of Medicine
        • Contact:
          • Marie Davis, MD, PhD
          • Phone Number: 206-598-4030
        • Contact:
          • Sarah Simon, BS.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

This study will enroll individuals with a known clinical and molecular diagnosis of spastic hereditary paraplegia type 4 (SPG4, SPAST) or Hereditary Spastic Paraplegia type 5A (SPG5A, CYP7B1), and/or their family members of interest (if applicable). We plan to enroll at least 100 individuals under a shared regulatory, data, and sample infrastructure over a 2-year time period.

Description

Inclusion Criteria:

  • Male or female patients of all ages with a clinical and molecular diagnosis of hereditary spastic paraplegia type 4 (SPG4, SPAST) or hereditary spastic paraplegia type 5A (SPG5A, CYP7B1).

Exclusion Criteria:

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Establish a shared clinical database, biobank of biospecimen samples, and a central repository for the storage of all genetic data in SP-CERN.
Time Frame: 2 years
2 years
Synchronize collaborations between institutions and clinical sites through a central research protocol to standardize outcome measures and maximize the quality of research and data to ensure clinical trial readiness by regulatory standards.
Time Frame: 2 years
2 years
Test key elements in pilot projects
Time Frame: 2 years
2 years
Build comprehensive programs for advancements in diagnosis, provide more opportunities for innovative treatments, and increase access to high-quality healthcare for HSP and PLS patients.
Time Frame: 2 years
2 years

Secondary Outcome Measures

Outcome Measure
Time Frame
Enrollment of 100 individuals with hereditary spastic paraplegia type 4 (SPG4) or hereditary spastic paraplegia type 5A (SPG5A) in the shared clinical database.
Time Frame: 2 years
2 years
Biobanking of blood samples from 100 individuals with SPG4 or SPG5A in a shared biobank.
Time Frame: 2 years
2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 4, 2024

Primary Completion (Estimated)

June 4, 2026

Study Completion (Estimated)

June 4, 2027

Study Registration Dates

First Submitted

August 12, 2024

First Submitted That Met QC Criteria

August 12, 2024

First Posted (Actual)

August 14, 2024

Study Record Updates

Last Update Posted (Actual)

March 18, 2026

Last Update Submitted That Met QC Criteria

March 16, 2026

Last Verified

March 1, 2026

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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