for people ages 18-69 (full criteria)
at La Jolla, California and other locations
study started
estimated completion:



The purpose of this study is to evaluate the safety of cross sequential escalating doses of AST-OPC1 administered among 5 cohorts at a single time-point between 21 and 42 days post injury, inclusively, to subjects with subacute cervical spinal cord injuries (SCI).

Official Title

A Phase 1/2a Dose Escalation Study of AST-OPC1 in Subjects With Subacute Cervical Spinal Cord Injury


Cervical Spinal Cord Injury Spine Injury Spinal Cord Trauma AST-OPC1 SCiStar OPC1 Neural cell Trauma spinal cord stemcell transplant Cervical spine injury Paralysis Quadriplegia Tetraplegia oligodendrocyte progenitor cell Subacute spinal cord injury Wounds and Injuries Spinal Cord Injuries Spinal Injuries


For people ages 18-69

Major Inclusion Criteria:

  • Sensorimotor complete, traumatic SCI (ASIA Impairment Scale A) for cohorts 1,2,3
  • Sensorimotor incomplete, traumatic SCI (ASIA Impairment Scale B) for cohorts 4,5
  • Last fully preserved single neurological level (SNL) from C-4 to C-7
  • From 18 through 69 years of age at time of injury
  • Single spinal cord lesion on a post-stabilization magnetic resonance imaging (MRI)scan, with sufficient visualization of the spinal cord injury epicenter and lesion margins to enable post-injection safety monitoring
  • Informed consent for this protocol and the companion long term follow-up protocol must be provided and documented (i.e., signed informed consent forms) no later than 37 days following injury
  • Able to participate in an elective surgical procedure to inject AST-OPC1 21-42 days following SCI

Major Exclusion Criteria:

  • SCI due to penetrating trauma
  • Traumatic anatomical transection or laceration of the spinal cord based on prior surgery or MRI
  • Any concomitant injury that interferes with the performance, interpretation or validity of neurological examinations
  • Inability to communicate effectively with neurological examiner such that the validity of patient data could be compromised
  • Significant organ damage or systemic disease that would create an unacceptable risk for surgery or immunosuppression
  • History of any malignancy (except non-melanoma skin cancers)
  • Pregnant or nursing women
  • Body mass index (BMI) > 35 or weight > 300 lbs.
  • Active participation in another experimental procedure/intervention


  • Univ. of California at San Diego
    La Jolla California 92093 United States
  • Rancho Los Amigos/USC
    Los Angeles California United States


in progress, not accepting new patients
Start Date
Completion Date
Asterias Biotherapeutics, Inc.
Phase 1/2
Study Type
Last Updated