Lymphatic OMT protocol for healthy individuals: A crossover self-controlled clinical trial

The Lymphatic OMT Protocol for Healthy Individuals is a crossover self-controlled clinical trial supported by a $25,000 grant from the American Osteopathic Foundation (AOF) awarded in 2023 and conducted under the College of Osteopathic Medicine (COMP) research program. The 12-month study period, running from December 21, 2023, to December 18, 2024, is designed to evaluate whether osteopathic manipulative treatment (OMT), specifically lymphatic-focused techniques, can modulate immune function in otherwise healthy adults. By using a crossover self-controlled design, the study seeks to isolate the specific physiological effects attributable to OMT by directly comparing outcomes within the same participants across different interventions.

This approach reduces between-subject variability and strengthens the ability to detect intervention-specific changes in immune markers. The protocol compares three interventions: OMT, light touch, and exercise. Light touch serves as an attention-control modality to account for the non-specific effects of physical contact and clinician interaction, while exercise functions as an active comparator to evaluate whether observed immune changes are unique to OMT or are general responses to physical activity. The core outcomes of interest include immune cell activity and cytokine levels, which are key biomarkers of immune function and intercellular signaling. Tracking these measures will help determine if OMT has measurable effects on immune cell behavior or cytokine profiles beyond those seen with light touch or exercise, thereby clarifying the mechanism and specificity of OMT’s influence on the immune system. The investigators anticipate that findings will expand understanding of how manual therapies, and lymphatic-focused OMT in particular, may support overall immune health and potentially serve as a non-pharmacologic adjunct in preventive medicine.

By elucidating whether OMT can meaningfully alter immune parameters in healthy individuals, the trial aims to inform evidence-based recommendations for incorporating OMT into wellness and preventive care strategies. The study’s outcomes could have implications for clinical practice and for future research investigating OMT’s role in contexts where immune function is critical, including vaccine responsiveness, infection recovery, and chronic inflammatory conditions. The funding supports the operational needs of the trial across the one-year study window, enabling recruitment, standardized intervention delivery, and laboratory assessment of immune endpoints.

As a rigorously designed crossover self-controlled clinical trial housed within COMP’s NMM/OMM research portfolio, this project contributes to a broader programmatic effort to generate high-quality evidence on osteopathic manipulative medicine and its biological effects. The trial’s methodological choices—within-subject comparisons, inclusion of both attention-control and active-comparator arms, and focus on quantifiable immune biomarkers—reflect an emphasis on experimental control and translational relevance. Ultimately, the study seeks to provide robust data on whether lymphatic OMT exerts distinct, measurable modulatory effects on immune function in healthy adults, offering a foundation for further clinical and mechanistic investigations.