Table 1 Examples of stem cell and botulin toxin A trials for SCI with inconsistent intervention categorization.

From: Ethics and accountability for clinical trials

ID

Title

Intervention/Treatment

ClinicalTrials.gov category

Discrepancy

Stem Cells

 NCT01772810 (USA)

Safety study of human spinal cord-derived neural stem cell transplantation for the treatment of chronic SCI

Human spinal cord stem cells

Drug

Categorized as a drug intervention

 NCT03505034 (China)

Intrathecal transplantation of UC-MSC in patients with late stage of chronic spinal cord injury

Umbilical cord mesenchymal stem cells

Drug

Categorized as a drug intervention

 NCT05054803 (Spain)

Cell therapy for chronic traumatic cervical incomplete spinal cord injury

WJ-MSC (XCEL-UMC-BETA)

Placebo

Drug

Drug

Categorized as a drug intervention

 NCT01769872 (Korea)

Safety and effect of adipose tissue derived mesenchymal stem cell implantation in patients with spinal cord injury

Autologous adipose tissue derived MSCs (mesenchymal stromal cell) transplantation

Procedure

Categorized as a procedural intervention

 NCT05671796 (Brazil)

Autologous bone marrow stem cell transplantation in patients with subacute spinal cord injury

Mesenchymal stem cell transplantation

Placebo

Genetic

Other

Categorized as a genetic intervention

Ambiguous categorization

Botulin Toxin A

 NCT02660138 (USA)

Dysport® Treatment of urinary incontinence in adults subjects with neurogenic detrusor overactivity (NDO) due to spinal cord injury or multiple sclerosis – Study 1

Botulinum toxin type A

Placebo

Biological

Drug

Categorized as a biological intervention

Categorized as a drug intervention

 NCT01911377 (Canada)

Botulinum toxin type A for treating allodynic pain in SCI and MS

Botulinum Toxin Type A

Normal saline for injection

Drug

Drug

Categorized as a drug intervention

Categorized as a drug intervention

 NCT02052024 (USA)

Myobloc Atrophy study

Botox

MYOBLOC

Drug

Drug

Categorized as drug interventions

  1. Examples are chosen to illustrate the range of countries with registered trials. Entries are verbatim.