Meaningful improvement (≥25% reduction in pain or sensory deficits on validated scales) is reported in 45–60% of treated neuropathy patients in published series. Diabetic peripheral neuropathy shows higher response rates (55–65%) than idiopathic or chemotherapy-induced subtypes (40–50%). Functional gains (improved balance, reduced fall risk, return to independence) occur in 30–45% of responders. Complete symptom resolution is rare (<5%). Pain reduction is more consistently observed than objective sensory restoration (monofilament testing). Non-responders (35–50%) experience no meaningful change, with no pre-treatment biomarker yet identifying responders.
Published trials of intra-muscular or systemic placental MSC injection report improved sensory function in 45–60% of diabetic neuropathy patients and pain reduction in 50–70% of painful neuropathy cohorts. Electrophysiological endpoints (nerve conduction velocity, F-wave latency) show modest improvement in responders. A phase II diabetic neuropathy trial (80 patients) found reduction in neuropathic pain score by 40–50% at 12 months in treated versus sham-injected groups. Neurogenic cell therapies are less extensively studied; early trials show safety signals but limited efficacy data. Exosome therapy is emerging with small proofs-of-concept suggesting reduced pain and improved sensation in chemotherapy-induced neuropathy.
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Medically reviewed by StemCellAtlas’s editorial team with Kiian Nadiia, MD, PhD (Paediatric Neurologist · Medical Director, CSM Clinic Network · 12+ yrs in Autism Spectrum Disorders) of partner clinic Stem Plus (Sofia), against ISSCR, FDA & EMA guidance. Educational information, not medical advice; figures indicative.
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