An interventional study of prolonged overnight fasting and usual care in Childhood Cancer Survivors, sponsored by Memorial Sloan Kettering Cancer Center. Active, not recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-01.
Sponsored by Memorial Sloan Kettering Cancer Center · Not applicable, Interventional, and Prevention
The purpose of this study is to test whether regularly not eating for at least 14 hours overnight ("intermittent fasting") is feasible and can improve blood sugar.
392 studies on the registry are indexed under Fasting; 63 are open to participants now.
This study's enrollment of 28 is below the median of 45 across 311 interventional studies indexed under Fasting.
Browse Fasting studies →Memorial Sloan Kettering Cancer Center is the lead sponsor of 1,964 studies on the registry; 327 are open to participants now.
Of its 135 completed or terminated interventional studies of FDA-regulated products, 71 (53%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants randomized to the fasting arm will be instructed on how to use the SMS texting app to indicate the beginning and end of the nightly fast. In the first 2-4 weeks following the first overnight fast, intervention participants will complete three phone calls with study staff trained in motivational interviewing. These calls will be used to reinforce the prolonged overnight fasting instructions, identify barriers to prolonged overnight fasting, and support successes where they have occurred.
Other: prolonged overnight fasting
Participants randomized to the usual care arm will be instructed to eat a heart-healthy diet and exercise for at least 30 minutes five days a week, which is usual counseling in our clinics.
Other: usual care
Three phone calls using motivational interviewing, support via SMS text.
Eat a heart-healthy diet and exercise for at least 30 minutes five days a week
Participation completion
Proportion of registered participants who successfully complete the 6-month intervention
Time frame: 6 months
measure of glucose metabolism
Assess the effect of prolonged overnight fasting on glucose metabolism, measured by glycosylated hemoglobin (HbA1c).
Time frame: 6 months
Started Apr 2018 (actual). Primary completion is estimated for Apr 2027, 108 months after the start.
Of 144 non-industry interventional studies with no phase under Fasting, half reached primary completion within 19 months of starting (the median), counting those still running; a quarter within 6 and three quarters within 40. This study's planned 108 months is above that.
Counting every sponsor, half of 149 studies reached it within 18 months; a quarter within 6 and three quarters within 40.
How these figures are worked out, and which studies are left out of them.
This study is active, not recruiting, as verified in Jun 2026. You cannot join it, but the record below documents what was studied.
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