IV Ketamine Infusion Therapy for Treatment-Resistant Depression: What a Harvard Study Reveals
IV ketamine infusion therapy for treatment-resistant depression is gaining attention as a powerful alternative when traditional antidepressants have not provided relief. A groundbreaking study from Harvard Medical School and McLean Hospital directly compared IV ketamine infusions to intranasal esketamine in patients with severe depression who had exhausted standard treatment options. The study found that IV ketamine produced stronger symptom reduction and earlier improvement, supporting its emerging role as an evidence-based therapeutic option.
Key Findings from the Harvard Ketamine Study
The study followed 153 adults with severe depression who had not improved with traditional antidepressants.
Participants received either IV ketamine infusions or intranasal esketamine over four to five weeks.
By the end of the study:
- IV ketamine led to a 49% reduction in depression symptoms
- Intranasal esketamine led to a 39% reduction
- IV patients often showed improvement after their first session, while intranasal patients typically needed several treatments to feel results
Read the full Harvard Gazette article here:
First study to compare two ketamine therapies for patients with severe depression
https://news.harvard.edu/gazette/story/2025/09/first-study-to-compare-two-ketamine-therapies-for-patients-with-severe-depression/
Why IV Ketamine Infusion Therapy Stands Out
IV ketamine works differently from traditional antidepressants, which often take weeks to take effect. Ketamine targets glutamate receptors, helping repair and strengthen communication pathways in the brain that regulate mood and emotional balance.
Because of its controlled dosage and precise administration, IV therapy offers:
- Greater consistency in therapeutic effect
- Immediate absorption (no need for the medication to pass through the digestive system)
- Customizable dosing under direct medical supervision
These benefits make IV ketamine an especially valuable option for people with treatment-resistant depression.
Safe, Physician-Led Ketamine Therapy at WOW Spine
At WOW Spine, patient safety is our highest priority.
Every ketamine infusion is administered under medical supervision in a setting that meets the standards of an ambulatory surgery anesthesia site of service.
This means our infusion environment is equipped for the same level of monitoring and safety procedures used in outpatient surgical care — including:
- Continuous heart rate, blood pressure, and oxygen monitoring
- Staff trained in anesthesia and sedation safety
- Clear emergency protocols and readiness systems
- A designated recovery space with discharge criteria and follow-up monitoring
This level of clinical oversight is not standard at all ketamine providers.
Our approach ensures that patients are treated with precision, safety, and respect for the whole person.
Beyond depression treatment, WOW Spine offers an integrated care model that supports both emotional well-being and physical function. Many patients also find ketamine therapy helpful in managing:
- Chronic pain
- PTSD
- Anxiety-related conditions
For more information check out our Infusion Ketamine Services page or contact us today!
