New research suggests that a noninvasive therapy targeting specific brain networks with electromagnetic pulses may help reduce disability after stroke. The preliminary findings, based on an analysis of two small clinical trials, were presented at the American Stroke Association’s International Stroke Conference 2026 in New Orleans.
The therapy, called electromagnetic network-targeted field (ENTF) therapy, delivers electromagnetic pulses to brain pathways that become disorganized after a stroke. When combined with physical therapy, ENTF therapy significantly improved functional recovery compared to sham stimulation plus physical therapy, according to the study led by Dr. Jeffrey L. Saver of the David Geffen School of Medicine at UCLA.
“These neural networks show electrical disorganization after a stroke. Stimulating these networks with electromagnetic pulse patterns derived from studies in people who have not had a stroke can model and facilitate the reestablishment of normal network organization,” Saver said in a news release. “This therapy has shown beneficial effects upon organized brain electrical activity and, most importantly, was associated with improved functional recovery for patients after stroke.”
The analysis combined data from 124 ischemic stroke survivors enrolled in two double-blind, randomized, sham-controlled trials. Participants had moderate to severe disability at baseline, with an average modified Rankin Scale (mRS) score of 3.9. They began treatment an average of 14 days after stroke, receiving 40 to 45 sessions of ENTF or sham therapy over 8 to 12 weeks, along with physical therapy. Sessions started in the hospital and continued at home using portable kits.
After three months, the ENTF group showed a 22% higher rate of freedom from disability (mRS 0-1) compared to the sham group (33.8% vs. 11.9%). Improvements were seen across all disability levels, with less moderate to severe disability (mRS 3-5) and less moderate disability (mRS 2). No serious adverse effects were reported in the ENTF group.
“It’s clear that we need more effective rehabilitation therapies to fully improve patient outcomes. This promising potential therapy is unique in that it would be able to be conducted at home by the stroke survivor using a portable kit,” Saver said.
Dr. Joseph P. Broderick, a professor at the University of Cincinnati’s Gardner Neuroscience Institute and an American Stroke Association volunteer expert not involved in the study, noted that the results are preliminary and require larger trials with balanced groups. “ENTF showed no safety issues, and there’s a strong demand for new recovery methods post-stroke,” Broderick said.
Stroke remains a leading cause of long-term disability in the United States. According to the American Heart Association’s Heart Disease and Stroke Statistics 2026 Update, stroke is the fourth leading cause of death and a major cause of disability. Motor impairment is the most common complication, often affecting arm and leg movement and daily activities.
The study’s main limitation is its reliance on data from two small pilot trials. A single, larger trial is needed to confirm these results. The findings are considered preliminary until published in a peer-reviewed journal.
For more information on stroke recovery, visit the American Stroke Association’s recovery resources.
