The LYMPH Trial - Surgical Versus Conservative Complex Physical Decongestion Therapy for Chronic Breast Cancer-Related Lymphedema: A Pragmatic, Randomized, Multicenter Superiority Trial

Title: The LYMPH Trial - Microsurgical versus Conservative Therapy for Breast Cancer-Related Lymphedema Purpose of the Study: The LYMPH trial compares two treatments for chronic breast cancer-related lymphedema (BCRL)-a condition where fluid builds up and causes swelling, usually in the arm, after breast cancer treatment. The study is testing whether microsurgical treatments (lymphatic surgery) are more effective than the current conservative therapy (called CDT) in improving quality of life for women with this condition. What is BCRL? After surgery or radiotherapy for breast cancer, some women develop swelling in the arm (lymphedema) due to damaged lymphatic vessels. This condition can cause pain, heaviness, infections, reduced mobility, and emotional distress. It can also impact daily activities and work life. Treatment Approaches: Conservative Decongestion Therapy (CDT): Includes manual lymphatic drainage (massage), compression bandaging/garments, skin care, and exercise. It is currently the standard treatment, but it\'s time-consuming, lifelong, and does not cure the condition. Microsurgical Treatment: Lymphovenous Anastomosis (LVA): Creates tiny bypasses between lymphatic vessels and veins to drain excess fluid. Vascularized Lymph Node Transfer (VLNT): Transfers healthy lymph nodes to the affected area to help restore drainage. Sometimes liposuction is added to remove built-up fat caused by long-term lymphedema. These surgeries aim to fix the underlying problem, not just manage the symptoms. How the Study Works: Participants: 280 women aged 18 or older who have had breast cancer and suffer from chronic BCRL. Groups: Participants are randomly assigned to one of two groups: Group A: Receives lymphatic surgery. Group B: Continues with CDT. Follow-Up: All participants are followed for 2 years, with some follow-up continuing for up to 10 years. They complete questionnaires about quality of life, pain, arm swelling, and daily impact. Crossover Option: After the main follow-up (15 months), women in the CDT group may choose to switch to surgical treatment. Goals and Benefits: The main goal is to see whether women who have surgery report better quality of life than those who continue with CDT. Other goals include measuring pain, arm swelling, infections, and the impact on daily life and costs. This study also hopes to support broader access to lymphatic surgery, as many health insurers currently do not cover it. Safety and Ethics: All treatments are already used in clinical practice. Risks of surgery (like infection or bleeding) are rare and manageable. The study meets international ethical and safety standards. Where is the Study Taking Place? The study is being carried out in more than 30 hospitals across Europe, North and South America, and Asia, including Belgium. Why This Matters: Chronic BCRL can have a serious impact on daily life and emotional well-being. By comparing two valid treatment options in a high-quality scientific study, this trial hopes to identify the most effective and sustainable way to help women live better after breast cancer.