Plain-English translation of NCT04690439 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Breast Cancer research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
This trial is testing photobiomodulation therapy (a treatment using specific wavelengths of light) combined with manual lymphatic drainage (gentle massage techniques) to help reduce arm swelling and related problems in people who have developed lymphedema after breast cancer surgery and radiation. Lymphedema is a common side effect where fluid builds up in the arm, causing swelling and discomfort. The researchers want to see if this light therapy, when combined with the standard drainage massage, works better than the massage alone.
Breast cancer survivors often develop arm swelling and pain after surgery and radiation, which can limit their ability to work and enjoy daily activities. Current treatments help, but doctors are looking for ways to make these treatments more effective and help patients feel better faster.
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You will visit the clinic twice a week for 18 weeks total. Half of you will receive light therapy sessions combined with manual lymphatic drainage massage for the first 9 weeks, then massage alone for the second 9 weeks; the other half will do the reverse order. The researchers will measure your arm size, ask about your pain and daily activities, and check in on your quality of life immediately after treatment and again at 12 months. They will also follow up on your safety for up to 5 years after treatment ends.
AI-generated summary from trial data · Jun 18, 2026 · Not medical advice
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