Donega V, van Velthoven CT, Nijboer CH, Kavelaars A, Heijnen CJ The endogenous regenerative capacity of the damaged newborn brain: boosting neurogenesis with mesenchymal stem cell treatment. J Cereb Blood Flow Metab. 2013 May;33(5):625-34. doi: 10.1038/jcbfm.2013.3. Epub 2013 Feb 13.
van Velthoven CT, Kavelaars A, Heijnen CJ Mesenchymal stem cells as a treatment for neonatal ischemic brain damage. Pediatr Res. 2012 Apr;71(4 Pt 2):474-81. doi: 10.1038/pr.2011.64. Epub 2012 Feb 8.
van Velthoven CT, Kavelaars A, van Bel F, Heijnen CJ Mesenchymal stem cell transplantation changes the gene expression profile of the neonatal ischemic brain. Brain Behav Immun. 2011 Oct;25(7):1342-8. doi: 10.1016/j.bbi.2011.03.021. Epub 2011 Apr 5.
van Velthoven CT, Kavelaars A, van Bel F, Heijnen CJ Mesenchymal stem cell treatment after neonatal hypoxic-ischemic brain injury improves behavioral outcome and induces neuronal and oligodendrocyte regeneration. Brain Behav Immun. 2010 Mar;24(3):387-93. doi: 10.1016/j.bbi.2009.10.017. Epub 2009 Oct 31.
van Velthoven CT, Kavelaars A, van Bel F, Heijnen CJ Nasal administration of stem cells: a promising novel route to treat neonatal ischemic brain damage. Pediatr Res. 2010 Nov;68(5):419-22. doi: 10.1203/PDR.0b013e3181f1c289.
van Velthoven CT, Kavelaars A, van Bel F, Heijnen CJ Regeneration of the ischemic brain by engineered stem cells: fuelling endogenous repair processes. Brain Res Rev. 2009 Jun;61(1):1-13. doi: 10.1016/j.brainresrev.2009.03.003. Epub 2009 Apr 5.
van Velthoven CT, Kavelaars A, van Bel F, Heijnen CJ Repeated mesenchymal stem cell treatment after neonatal hypoxia-ischemia has distinct effects on formation and maturation of new neurons and oligodendrocytes leading to restoration of damage, corticospinal motor tract activity, and sensorimotor function. J Neurosci. 2010 Jul 14;30(28):9603-11. doi: 10.1523/JNEUROSCI.1835-10.2010.
Wagenaar N, Nijboer CH, van Bel F Repair of neonatal brain injury: bringing stem cell-based therapy into clinical practice. Dev Med Child Neurol. 2017 Oct;59(10):997-1003. doi: 10.1111/dmcn.13528. Epub 2017 Aug 8.
Adult Mesenchymal Stromal Cells to Regenerate the Neonatal Brain: the PASSIoN Trial (Perinatal Arterial Stroke Treated With Stromal Cells IntraNasally)
Interventional studies are often prospective and are specifically tailored to evaluate direct impacts of treatment or preventive measures on disease.
Observational studies are often retrospective and are used to assess potential causation in exposure-outcome relationships and therefore influence preventive methods.
Expanded access is a means by which manufacturers make investigational new drugs available, under certain circumstances, to treat a patient(s) with a serious disease or condition who cannot participate in a controlled clinical trial.
Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.
Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.
