Minocycline and Perfusion Pressure Augmentation in Acute Spinal Cord Injury

Spinal Cord Injuries Clinical Trial

Official title:

A Pilot Study to Assess Clinical Safety and Tolerance of Minocycline and Spinal Perfusion Pressure Augmentation in Acute Spinal Cord Injury

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00559494
• Other study ID #: 17007
• Secondary ID: PVA2414
• Status: Completed
• Phase: Phase 1/Phase 2
• First received: November 14, 2007
• Last updated: March 15, 2013
• Start date: June 2004
• Est. completion date: August 2010

Study information

• Verified date: March 2013
• Source: University of Calgary
• Contact: n/a
• Is FDA regulated: No
• Health authority: Canada: Health Canada
• Study type: Interventional

Clinical Trial Summary

While research in animal models of spinal cord injury have provided many promising insights, human studies have failed to produce effective therapies. We propose to investigate the drug Minocycline (a metalloproteinase inhibitor) for the treatment of spinal cord injured patients aiming to limit neurological injury and improve neurological outcome. This drug influences several secondary injury mechanisms implicated in spinal cord injury and has been effective in improving outcome after spinal cord injury in animal models. We also propose to examine the safety and feasibility of spinal cord perfusion pressure augmentation with a protocol of IV fluids and inotrope medications versus standard maintenance of mean arterial pressure in subjects who exhibit a decrease in perfusion pressure to less than 75 mmHg. The purpose of this pilot study is 1) to evaluate the feasibility of a clinical trial protocol for Minocycline in patients with acute spinal cord injury, and 2) to ensure adequate drug dosing and metabolic effect. After undergoing a process of informed consent, patients agreeing to participate in the study will be randomized to placebo or treatment groups in a double-blind fashion. Clinical neurological examinations, patient-reported quality of life, and functional independence categorization will be combined with serum and cerebrospinal fluid laboratory investigations to establish some of the pharmacological properties and the safety profile of this medication in this group of patients. In addition, patient tolerance to the dosing regimen will be assessed. The results of this study will provide the preliminary data necessary to plan for a larger prospective, randomized, controlled, double-blind clinical trial to assess efficacy and to further assess safety.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 52
• Est. completion date: August 2010
• Est. primary completion date: August 2010
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 16 Years and older

Eligibility

Inclusion Criteria:

• Age 16 or over

• Motor complete or motor incomplete acute spinal cord injury involving bony spinal levels between C0 and T11

• Patient able to provide informed consent

• Randomization and commencement of administration of first drug dose within 12 hours of injury

• surgical decompression if needed to be performed within 24 hours of the injury

• subjects exhibiting spinal cord perfusion pressure (lumbar drain transduced pressure
• mean arterial pressure)> 75 mmHg will be randomized to active augmentation protocol versus maintenance of mean arterial pressure

Exclusion Criteria:

• Acute spinal cord injury >12 hours old

• Isolated sensory deficit, motor intact

• Isolated cauda equina injury or injury at bony level T12 or below

• History of systemic lupus erythematosus (SLE)

• Pre-existing hepatic or renal disease

• Tetracycline hypersensitivity

• Pregnancy or breast feeding

• Isolated sensory deficit

• Isolated radicular motor deficit

• Significant leukopenia (white blood cell count < ½ times the lower limit of normal) at screening

• Elevated liver function tests (AST, ALT, alkaline phosphatase, or total bilirubin > 2 times the upper limit of normal) at screening

• Presence of systemic disease that might interfere with patient safety, compliance or evaluation of the condition under study (e.g. insulin-dependent diabetes, Lyme disease, clinically significant cardiac disease, HIV, HTLV-1)

• Associated traumatic conditions interfering with informed consent or outcome assessment (e.g. closed head injury, liver contusion)

• Known uncorrected severe coronary artery disease or evidence of active coronary ischemia (ECG changes, positive Troponin) will be excluded from SCPP randomization

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Spinal Cord Injuries

Intervention

Drug:
• Minocycline
Minocycline IV BID x 7 days (first 10 patients 200 mg/dose, subsequent patients adjusted based on pharmacodynamic profiling to 800 mg loading dose, tapered 100 mg each dose to 400 mg then maintain at 400mg until day 7)
• placebo
Normal saline 250cc via central line similar to minocycline arm administration protocol

Procedure:
• SCPP augmentation
maintenance of spinal cord perfusion pressure at 75 mmHg with fluids and inotrope protocol
• SCPP control
maintenance of Mean arterial pressure of >65 mmHg with fluids and inotropes protocol without spinal cord perfusion pressure as target or guiding therapy

Locations

Country	Name	City	State
Canada	Foothills Medical Centre	Calgary	Alberta

Sponsors (4)

Lead Sponsor	Collaborator
University of Calgary	American Association of Neurological Surgeons, Hotchkiss Brain Institute, University of Calgary, Paralyzed Veterans of America

Country where clinical trial is conducted

Canada, 

References & Publications (1)

Casha S, Zygun D, McGowan MD, Bains I, Yong VW, Hurlbert RJ. Results of a phase II placebo-controlled randomized trial of minocycline in acute spinal cord injury. Brain. 2012 Apr;135(Pt 4):1224-36. doi: 10.1093/brain/aws072. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Protocol compliance, feasibility and adverse events		2 years	Yes
Secondary	American Spinal Injury Association - motor score (primary clinical outcome) and sensory scores		2 years	No
Secondary	Short Form 36 - Quality of Life Assessment		2 years	No
Secondary	Functional Independence Measure		2 years	No
Secondary	London Handicap Scale		2 years	No
Secondary	Spinal Cord Injury Measure		2 years	No
Secondary	CSF collection (6/day) and biochemical assays		7 days	No
Secondary	Sequential Anatomical MRI		1 year	No