COVID vaccine side effects in breast cancer patients: what 714 survivors reported

NCT ID NCT04872738

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study asked 714 breast cancer survivors about their experiences with the COVID-19 vaccine. Researchers wanted to understand if lymph node swelling—a common vaccine side effect—caused worry or raised the risk of lymphedema (arm swelling) in these patients. The study collected data on where patients got the shot, side effects, and how long they lasted.

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Conditions

The condition(s) this trial relates to.

breast cancer Breast Cancer Lymphedema breast neoplasm COVID-19 Lymphadenopathy

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Massachusetts General Hospital Cancer Center

    Boston, Massachusetts, 02114, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.