Spots Global Cancer Trial Database for Breast Tumor Oxygenation During Exercise

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Trial Identification

Brief Title: Breast Tumor Oxygenation During Exercise

Official Title: Breast Tumor Oxygenation During Exercise

Study ID: NCT02340468

Conditions

Breast Tumor

Interventions

diffuse optical spectroscopy

Study Description

Brief Summary: In the field of cancer treatment, it is generally accepted that the enhancement of oxygen delivery to tumors can augment the effect of anti-cancer therapies. In the case of chemotherapy, this enhancement might lead to a larger amount of a given dose of treatment reaching the tumor and having an effect.

Detailed Description: While the benefits of exercise on overall health are widely documented, little is known about how exercise affects the progression or treatment of malignant neoplasms. Tumors have a complex vascular network which is likely affected by the global changes in hemodynamics and perfusion that occur during moderate exercise. Increased tumor oxygenation is clinically relevant as it may counteract the hypoxic tumor environment which is known to contribute to resistance to chemo- and radiation therapies, angiogenesis, invasiveness and metastasis, genomic instability, and resistance to cell death. The researcher can use noninvasive optical imaging technology called diffuse optical spectroscopy to safely and non-invasively quantify the dynamics of blood flow and metabolism in tumors and normal tissue of subjects undergoing supervised cycling exercise. The researcher can determine that exercise will measurably increase tumor oxygenation, and that this effect will be proportional to the intensity and/or duration of the exercise performed.