Evidence Explorer · MS-N246 · Lifestyle, nutrition and exercise · weight and physical activity · Appraised November 5, 2026
The SUCCEED randomized trial found that a six-month diet-and-exercise counseling program produced modest sustained weight loss and increased physical activity in overweight or obese survivors of early endometrial cancer. It did not test recurrence or survival.
Evidence at a glance
- Benefit signal: About 4.4 to 4.6 kg greater weight loss and roughly 89 to 100 more minutes of activity per week at follow-up.
- Certainty: Moderate for one-year weight and activity change; low for other health outcomes because the trial was small and multicomponent.
- Risk context: Weight-loss goals should account for frailty, diabetes, lymphedema, nutritional adequacy and treatment-related limitations.
- Cancer-control relevance: No evidence of reduced endometrial-cancer recurrence or improved survival.
What was studied
Seventy-five overweight or obese survivors of early-stage endometrial cancer were randomized to a six-month education and counseling program addressing diet and exercise or usual care.
Reported adherence to the intervention was 84%; follow-up completion was 92% at six months and 79% at 12 months.
What the study found
Relative to usual care, body weight was 4.4 kg lower at six months and 4.6 kg lower at 12 months. Physical activity was approximately 100 minutes per week higher at six months and 89 minutes higher at 12 months.
The combined program cannot show how much of the effect came from dietary change, exercise, counseling contact or self-monitoring.
What this does not establish
Weight loss and activity are health-related outcomes, not evidence of cancer control. The study was not designed or powered to determine recurrence, cardiovascular events or survival.
Safety and practical context
Rapid, unintentional weight loss, poor intake or sarcopenia calls for nutrition assessment rather than routine calorie restriction.
Pelvic-floor symptoms, neuropathy, lymphedema and joint disease may change exercise choices. Diabetes medications may need review when activity and intake change.
Questions for the care team
- Is weight loss appropriate for me, and how will muscle mass be protected?
- Would oncology nutrition and exercise referrals be available together?
- Which metabolic and functional outcomes will we monitor beyond the scale?
Sources and identifiers
Funding and conflicts: Not fully verified from the accessible abstract.
Source access and dates: Primary abstract was appraised; complete adverse-event, funding and conflict details were not independently verified. Sources checked November 5, 2026. Last literature search November 5, 2026.
Educational evidence summary, not individualized medical advice. Exercise around cancer treatment should be adapted to symptoms, blood counts, bone health, cardiopulmonary status, surgical restrictions and the treating team’s guidance.
