Six-week Follow-up Results of Phase 1/2a Trial Show Safety, Tolerability and Neurological Outcome of Cethrin®
MONTREAL, CANADA -- BioAxone Therapeutic
announced today positive interim results on its phase 1/2a North
American dose escalation clinical trial on Cethrin® for the
treatment of acute spinal cord injury (SCI).
The Company reported that data on safety,
tolerability and neurological outcome from the six-week follow-up of
the trial of Cethrin® at four dose levels (0.3, 1, 3 and 6 mg)
indicates that this treatment is safe and well tolerated and that the
Functional benefit may be dose dependent.
The twelve-month study is evaluating 37 patients
from 9 centers in the U.S. and Canada who suffered a complete Thoracic
or Cervical injury (i.e. ASIA Grade A, having no sensory or Motor
function below the level of the spinal cord injury).
"We have now passed the most critical period of
observation regarding the safety of Cethrin® with more than half of
the patients having completed their six-month follow-up. None of the
patients has shown any adverse events related to the administration of
this drug and the outcome continues to be encouraging for patients who
have completed the six-month follow-up," said Dr. Michael Fehlings, the
lead investigator for the study. Dr. Fehlings is a Professor of
Neurosurgery at the University of Toronto and holds the Krembil Chair
in Neural Repair and Regeneration at Toronto Western Hospital.
The trial is not placebo controlled but has an efficacy component
based on the American Spinal Injury Association's (ASIA) scale which is
designed to assess sensory and motor function in patients. In this
trial, 31% of patients, after six weeks, recovered some sensory and/or
motor function below the level of their injury and converted from a
complete injury to an Incomplete Injury.
"We are excited about Cethrin®'s excellent safety profile and
the neurological outcomes observed to date," said Dr. Frank Bobe,
President and CEO of BioAxone. "BioAxone is at the frontier of this new
science and we are actively looking for commercial partners to join us
in accelerating the development of Cethrin®."
Cethrin® is a recombinant protein that is topically delivered
onto the spinal cord during decompression/stabilization surgery.
"Cethrin® is the first of a new class of drugs that is specifically
designed to penetrate cells and inhibit Rho, a signaling master switch
whose activation triggers cell death and exacerbates spinal cord damage
following injury," said Dr. Patrick Tremblay, Vice President of
Research and Development at BioAxone.
There are currently no effective therapies for spinal cord injury
and the nearly 12,000 new patients each year in North America alone.
Despite significant scientific breakthroughs existing clinical
interventions remain limited to reducing local inflammation of the
spinal cord.
About Cethrin®
Cethrin®'s active ingredient, BA-210, is
a recombinant protein which acts as a Rho GTPase antagonist to promote
neuroprotection and neuroregeneration in the Central Nervous System
(CNS). It was engineered by BioAxone to effectively penetrate into CNS
tissue, where it has been clearly shown to elicit the rescue and repair
of damaged neurons in preclinical animal models.
To obtain Cethrin®, BA-210 is mixed with a commercially
available fibrin sealant, Tisseel®, and is delivered in a single
dose directly onto the Dura Mater of the spinal cord during
decompression/stabilization surgery. Cethrin® was granted orphan
drug status by the U.S. Food and Drug Administration (FDA) in December
2005.
SOURCE: BioAxone Therapeutic