For the roughly 80% of chemotherapy patients who find themselves staring blankly at a grocery list or forgetting why they walked into a room - a phenomenon charmingly dubbed “chemo brain” - a new Phase II clinical trial offers a glimmer of hope from two surprisingly mundane sources: a brisk walk and a bottle of ibuprofen.
Published in CANCER, the American Cancer Society’s peer-reviewed journal, the study tested whether exercise and low-dose ibuprofen, alone or together, could ease the cognitive fog that plagues many undergoing treatment. Scientists have long suspected both interventions help the brain by reducing inflammation - each through its own biological back-alley - but their effects on cancer-related cognitive impairment had been largely unexplored.
Researchers enrolled 86 cancer patients already reporting cognitive difficulties and randomly assigned them to one of four six-week regimens: a home-based walking-and-resistance program called EXCAP plus low-dose ibuprofen, EXCAP plus a placebo, ibuprofen alone, or a placebo alone. After six weeks, the results were clear: exercise delivered the strongest punch. Patients in the EXCAP-plus-placebo group outperformed placebo-only participants on attention tests, and those taking just ibuprofen also showed better attention scores. Friends, family, and coworkers - often the unwitting observers of cognitive slips - noticed fewer problems in both EXCAP groups.
But ibuprofen wasn’t an unqualified hero. Patients taking the anti-inflammatory actually showed less improvement in short-term verbal memory than those who skipped it, a puzzling finding the researchers say needs more digging. “We are encouraged by the findings of this trial that suggest possible benefits of both interventions for some cognitive domains,” said lead author Michelle C. Janelsins, PhD, MPH, of the University of Rochester and the Wilmot Cancer Institute. “Clearly, we saw a more pronounced effect with exercise, which is notable considering the multiple health benefits of exercise for cancer survivors.”
Larger Phase III trials will be needed to confirm these results and figure out the ideal dose and duration for both interventions. For now, Dr. Janelsins advises patients to consult their healthcare provider before lacing up their sneakers or popping pills - because even the simplest fixes deserve a doctor’s nod.