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Clinical Trial Summary

Prediabetes is a high-risk state for diabetes development, lifestyle modification is the cornerstone of diabetes prevention. Two novel types of intermittent fasting recently have received more attention: the 5:2 diet and time-restricted eating (TRE). TRE requires individuals to eat in a specified number of hours per day (typically 4 to 10 hours) without energy intake restriction. The 5:2 diet involves 5 feast days and 2 fast days per week; participants eat ad libitum without restriction on feast days while 25% of energy needs (approximately 500-800 kcal per day) are consumed on fast day. This randomized controlled trial aimed to evaluate the effect of TRE and the 5:2 diet on glucose homeostasis and cardiometabolic risk factors in prediabetes over 6 months compared to usual health care.


Clinical Trial Description

Prediabetes is a high-risk state for diabetes development, lifestyle modification is the cornerstone of diabetes prevention. Two novel types of intermittent fasting recently have received more attention: the 5:2 diet and time-restricted eating (TRE). TRE requires individuals to eat in a specified number of hours per day (typically 4 to 10 hours) without energy intake restriction. The 5:2 diet involves 5 feast days and 2 fast days per week; participants eat ad libitum without restriction on feast days while 25% of energy needs (approximately 500-800 kcal per day) are consumed on fast day. Preliminary evidence suggests that both TRE and the 5:2 diet have beneficial effects on glucose control in type 2 diabetes. No much is known about the effects and molecular mechanisms by TRE or the 5:2 diet improves glucose homeostasis in prediabetes. This randomized controlled trial aimed to evaluate the effect of TRE and the 5:2 diet on glucose homeostasis and cardiometabolic risk factors in prediabetes over 6 months compared to usual health care. All eligible participants will participate in an 8-week run-in phase in which they are fed the low-calorie-diet. Participants who pass the run-in phase will be randomly assigned 1:1:1 to one of the three study groups (TRE, the 5:2 diet and control groups). Participants in the TRE group will be instructed to eat during a window of 8 h/d (8 am to 4 pm) over 12 months. Participants in the 5:2 diet group will be instructed to consume 500-600 kcal/d on fast days and eat ad libitum on feast days. Participants in the control group were instructed to receive usual health care. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05717387
Study type Interventional
Source Nanfang Hospital, Southern Medical University
Contact Huijie Zhang, MD.PhD
Phone +86-020-61641635
Email Huijiezhang2005@126.com
Status Recruiting
Phase N/A
Start date April 11, 2023
Completion date December 2024

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