NCT00913471

Brief Summary

The investigators propose to compare plasma protein profiles for SCI patients with/without chronic neuropathic pain in order identify biomarker(s) that are associated with this medical condition. Secondly, the investigators propose to identify a temporal relationship to initial SCI at which these biomarkers manifest. Our working hypothesis is that sustained alterations in specific inflammatory molecules are associated with chronic neuropathic pain following SCI, and that their plasma levels can serve as biomarkers to identify patients at risk for the development of neuropathic pain. Additionally the investigators are collecting skin tissue biopsy samples from patients following acute and chronic spinal cord injury to create vector-free human iPS cells from fibroblasts by direct delivery of reprogramming proteins.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
56mo left

Started Jun 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
Jun 2009Dec 2030

Study Start

First participant enrolled

June 1, 2009

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

June 2, 2009

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 4, 2009

Completed
21 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2030

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2030

Last Updated

August 7, 2025

Status Verified

August 1, 2025

Enrollment Period

21 years

First QC Date

June 2, 2009

Last Update Submit

August 5, 2025

Conditions

Keywords

Spinal cord injurySCINeuropathic painPain

Outcome Measures

Primary Outcomes (1)

  • To identify candidate biomarkers for pain in the chronic SCI samples.

    two or more years post injury

Secondary Outcomes (1)

  • To identify the temporal relationship of the development of pain and the manifestation of the biomarkers identified

    two or more years post injury

Study Arms (3)

Acute-Longitudinal SCI

Other: blood samples

Chronic SCI

Other: blood samples

Healthy volunteers

Other: blood samples

Interventions

Chronic patients - a one time blood sample (12 mL) and questionnaire; 10 subjects will donate a 3-5mm skin tissue sample. Longitudinal Patients - 5 blood samples (12 mL each, totaling 60 mL at the following time points: within 48 hours, one week, one month, 6 months and 18 months post injury to coincide with standard visits) and questionnaire. 10 subjects will donate a 3-5mm skin sample. Healthy, pain free volunteers - a one time blood sample (12 mL), vital signs per standard CRU protocol and questionnaire confirming they are healthy.

Acute-Longitudinal SCIChronic SCIHealthy volunteers

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Acute and Chronic traumatic spinal cord injury patients and healthy volunteers

You may qualify if:

  • \. Two or more years post traumatic SCI with deficit

You may not qualify if:

  • \< 18 years of age
  • Evidence of brain injury on computed tomography (CT) (SCI patients need to be able to comply with completing the pain survey)
  • Other medical condition that accounts for chronic pain (i.e. diabetic neuropathy, renal insufficiency, multiple sclerosis, HIV associated neuropathy, alcohol-related neuropathy)
  • Temperature \> 100.5°C
  • History of infection within the last 30 days (i.e. UTI, URI, pressure sore)
  • History of Pulmonary Embolus (PE) or deep vein thrombosis (DVT)
  • Inability to obtain informed consent
  • Psychiatric problems (patients need to be able to complete the pain survey)
  • Diagnosis or treatment of cancer in the last 5 years
  • B. Longitudinal, Prospective Cohort Patients:
  • \. Initial traumatic SCI with deficit
  • Same as listed above C. Healthy Volunteers Healthy volunteers include gender, age and race matched volunteers able to provide informed consent who have,
  • No significant medical history (pain free)
  • No recent infections
  • Take no medications
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Memorial Hermann Hospital

Houston, Texas, 77030, United States

Location

Related Publications (2)

  • Hergenroeder GW, Moore AN, Schmitt KM, Redell JB, Dash PK. Identification of autoantibodies to glial fibrillary acidic protein in spinal cord injury patients. Neuroreport. 2016 Jan 20;27(2):90-3. doi: 10.1097/WNR.0000000000000502.

    PMID: 26629661BACKGROUND
  • Hergenroeder GW, Redell JB, Choi HA, Schmitt L, Donovan W, Francisco GE, Schmitt K, Moore AN, Dash PK. Increased Levels of Circulating Glial Fibrillary Acidic Protein and Collapsin Response Mediator Protein-2 Autoantibodies in the Acute Stage of Spinal Cord Injury Predict the Subsequent Development of Neuropathic Pain. J Neurotrauma. 2018 Nov 1;35(21):2530-2539. doi: 10.1089/neu.2018.5675. Epub 2018 Jul 5.

    PMID: 29774780BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

blood samples (120 subjects) and skin tissue biopsy (20 subjects)

MeSH Terms

Conditions

NeuralgiaSpinal Cord InjuriesPain

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsSpinal Cord DiseasesCentral Nervous System DiseasesTrauma, Nervous SystemWounds and Injuries

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Officials

  • Georgene Hergenroeder, PhD

    UTHSC-Houston

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, Neurosurgery

Study Record Dates

First Submitted

June 2, 2009

First Posted

June 4, 2009

Study Start

June 1, 2009

Primary Completion (Estimated)

June 1, 2030

Study Completion (Estimated)

December 1, 2030

Last Updated

August 7, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

There is no plan to share individual participant data.

Locations