Behavioral Weight Loss Program for Cancer Survivors in Maryland

Inclusion Criteria:

* previously diagnosed with a malignant solid tumor,
* completed all required surgical, and/or chemotherapy and/or radiation curative intent therapy at least three months prior to enrollment,
* anticipated treatment-free life span of 12 months or longer.
* chemoprophylaxis with tamoxifen or aromatase inhibitors for breast cancer in women will be permitted
* anti- Luteinizing-hormone releasing therapy for prostate cancer in men will be permitted.
* BMI ≥ 25 kg/m2 (BMI ≥ 23 kg/m2 for Asians) and weight ≤ 400 lbs.
* have an email address for regular personal use

Additional criteria for participants in weight tracking (self-directed or app directed)

* willingness to record/transmit quarterly weights for 12 months

Additional criteria for App-Directed Program:

* willingness to change diet and increase physical activity and track weight, diet and physical activity
* have a smart phone for personal use
* sufficient data plan/Internet to support daily use of weight loss app\*

Additional Criteria for Coach-Directed Weight Loss Program

* willingness to lose weight by changing diet and physical activity habits
* willingness to track weight, diet and physical activity
* willingness to record/transmit quarterly weights for 12 months
* smart phone for personal use
* data plan/Internet to support daily use of weight loss app\*
* willingness to complete coaching calls (12 weekly calls and 3 monthly calls)
* sufficient call plan to support coaching calls

  * a corresponding website could be used, then daily Internet access is required for person use.

Exclusion Criteria:

* received any chemotherapy (unless anti-hormonal therapy) and/or radiation three months or less prior to the proposed program date
* women who are breastfeeding, pregnant, or planning pregnancy within the next year

Additional exclusion criteria for participants in weight tracking and/or Coach-Directed Program

* self-identification of uncontrolled concurrent medical condition likely to limit compliance with the program as determined by investigators.
* current involvement in another organized weight loss program
* current use of steroids or other medication known to affect body weight
* bariatric surgery scheduled within the next 6 months, or
* plan to move outside the continental US in the next 12 months