The lymphatic system, a critical network of vessels running alongside blood vessels, is essential for the human body’s waste removal, lipid metabolism, and immune function. Despite its importance, a study of 110 American medical schools found that most graduates spent just 45 minutes learning about lymphatic disease.
Now, a pioneering set of programs and policies is poised to transform the medical industry’s understanding of lymphatic disease. From the launch of the ARPA-H LIGHT program to the establishment of the National Commission on Lymphatic Diseases, we are on the verge of unprecedented advancements in diagnosing and managing conditions like lymphedema and lipedema. For the nearly 30 million Americans affected—mainly women and often breast cancer survivors—these efforts offer new hope for better health outcomes and an improved quality of life.
The LIGHT Program
Lymphedema and lipedema have long suffered from inadequate diagnostic tools and a lack of treatment strategies. The LIGHT program aims to change this by developing advanced technologies for diagnosing and treating lymphatic diseases within the next three to six years.
The LIGHT program, short for Lymphatic Imaging, Genomics, and pHenotyping Technologies, highlights the federal government’s commitment to addressing a crucial yet often overlooked aspect of human health. By focusing on biomarker discovery, advanced imaging technologies, and genetic and epigenetic models, LIGHT aims to provide accurate and timely diagnoses that can significantly improve patient outcomes.
A key element of the LIGHT program is its emphasis on collaborative research. ARPA-H recognizes that achieving the ambitious goals of this initiative will require teams with varied technical expertise. The federal government is currently reviewing proposals from prospective performers, encouraging the formation of multidisciplinary teams to tackle the complex challenges of lymphatic disease research. This collaborative approach is expected to foster innovation and expedite the development of effective diagnostic and treatment solutions. Winners of the research proposals will be announced later this summer, setting the stage for a new era of lymphatic disease management.
National Commission on Lymphatic Diseases
The establishment of the National Commission on Lymphatic Diseases (NCLD) by the National Heart, Lung, and Blood Institute (NHLBI) marks another monumental stride in advancing lymphatic disease research and treatment. Launched in December 2023, this commission was formed in response to a congressional directive and the advocacy of the lymphatic community led by the Lymphatic Education & Research Network (LE&RN). Its purpose is to identify gaps and opportunities in lymphatic science, spur research, and address the clinical, policy, and educational barriers to improving prevention, diagnosis, and treatment.
The NCLD comprises 15 members, including researchers, healthcare providers, and patients. It is co-chaired by LE&RN’s Co-Founder, Dr. Stanley Rockson of Stanford University. Commission members will serve two-year terms, meeting quarterly to develop comprehensive reports on the state of lymphatic diseases in the United States. These findings will be shared with the NHLBI Advisory Council and other NIH bodies to inform future research and policy decisions. The commission’s efforts are supported by the NIH’s multidisciplinary research portfolio and initiatives like the Human BioMolecular Atlas Program (HuBMAP), which aims to develop detailed maps of the lymphatic system. By evaluating existing knowledge gaps and coordinating multidisciplinary research efforts, the commission will revolutionize how healthcare professionals approach lymphatic diseases.
Addressing Critical Needs for Lymphedema Patients
For the millions of American women, men, and children who live with painful and damaging swelling from lymphedema, these initiatives offer hope for improved quality of life. The advancements made through the LIGHT program and the National Commission will push the boundaries of medical science in understanding and treating lymphatic diseases.
For medical professionals, these initiatives present numerous opportunities to engage with cutting-edge research and advancements in lymphatic disease treatment. The LIGHT program and the National Commission on Lymphatic Diseases will drive the development of new diagnostic tools and treatment methodologies, providing healthcare providers with better resources to care for patients. As education and awareness about lymphatic diseases improve, medical professionals will be better equipped to diagnose and manage these conditions effectively.
As these new initiatives get off the ground, organizations like LE&RN will continue fighting for those in the lymphatic disease community. Despite the promising advancements, a lot of help is still needed for this community, which has been overlooked for so long. Resources offered by LE&RN, such as our Global Patient Registry, live-stream symposiums given by leaders in research and medicine, and our LE&RN Resource Center, providing bountiful materials and an assistance hotline, are among the critical resources that support individuals who currently live with lymphatic diseases such as lymphedema, lipedema, and lymphatic anomalies.
As we learn more about the lymphatic system, we will continue to seek new treatments and cures for lymphatic diseases through our ongoing advocacy and support of all healthcare stakeholders.

William Repicci
William Repicci is the President & CEO of the Lymphatic Education and Research Network.