Two phases, two research questions
Acute TBI (hours to days after injury): trials have tested intravenous bone marrow cells in children and adults to limit secondary injury. Results showed safety and some reduction in the need for intensive care interventions, but no clear improvement in neurologic outcome at later follow-up. This research is done only in hospital settings.
Chronic TBI (months to years later): a Phase 2 trial of a modified bone marrow-derived cell product surgically implanted next to the injury reported improved motor function in the treated group versus sham surgery, which attracted attention in 2024. It is one trial, with a surgical procedure, using a product not available outside the study. Larger confirmation is under way.
What the clinics sell
Intravenous umbilical cord or adipose MSCs, sometimes intrathecal, sometimes with hyperbaric oxygen and "neuro-peptide" infusions, often marketed to veterans with blast injuries and to former contact-sport athletes worried about CTE. None of it resembles the trial protocols. IV cells largely lodge in the lungs and do not cross the blood-brain barrier in meaningful numbers; see route of administration. There is no controlled evidence that any clinic protocol improves cognition, mood or function after TBI.
A note for veterans
The VA's Foreign Medical Program pays only for treatment of VA-rated service-connected conditions using accepted care. Stem cell therapy for TBI is experimental everywhere and is not reimbursable through FMP. Any clinic suggesting otherwise is wrong. The hub site covers FMP accurately in veterans and medical tourism.
What is supported by evidence for chronic TBI symptoms
- Multidisciplinary rehabilitation: physical, occupational, speech-language and cognitive therapy
- Treatment of sleep disorders and post-traumatic headache, which drive much of the disability
- Vestibular and vision therapy for balance and oculomotor symptoms
- Evidence-based psychotherapy and pharmacotherapy for mood and PTSD, which commonly co-occur
- Hyperbaric oxygen: heavily marketed; large randomized trials in service members showed no benefit over sham
Where Colombia fits
Comprehensive neurorehabilitation, sleep medicine and neuropsychology are available in Colombia's major cities at a fraction of US private cost. A brain injury survivor who has exhausted insurance-covered therapy hours can buy months of daily rehabilitation for the price of one US stem cell package. That is a defensible trip. An infusion is not; we do not refer for it. See neurological conditions in Colombia.
Regulatory status: FDA vs INVIMA
United States (FDA): The only FDA-approved stem cell products are hematopoietic (blood-forming) cell products for blood cancers and immune disorders. There is no approved stem cell therapy for stroke, cerebral palsy, brain injury, Parkinson's disease, macular degeneration or hearing loss. Legitimate access in the US is through registered clinical trials listed at ClinicalTrials.gov.
Colombia (INVIMA): Cell therapies fall under advanced-therapy regulation. Facilities need INVIMA habilitation and laboratory-processed cell products need product authorization or an approved research protocol. Verify the clinic's INVIMA status and the physician's ReTHUS registration. Neurologic indications are experimental everywhere; a Colombian clinic offering them outside a documented protocol should be treated with corresponding caution.
Frequently asked questions
Is there a stem cell treatment for TBI?
Not an established one. One Phase 2 surgical implant trial showed a motor signal in chronic TBI; the product is available only in trials. Clinic IV infusions have no controlled evidence.
Does hyperbaric oxygen help TBI?
Large randomized trials in military populations found no benefit over sham. It is frequently bundled with stem cells at clinics.
Can the VA pay for stem cells abroad?
No. The Foreign Medical Program covers accepted treatment for rated service-connected conditions; experimental therapy is excluded.
Living with a brain injury and out of covered therapy?
We can help you find intensive rehabilitation in Colombia at prices that make months of therapy possible. Ask us about it directly.
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