NCT05384444

Brief Summary

Extensive preclinical evidence suggests that short-term fasting and fasting mimicking diets (FMDs) can protect healthy cells and render cancer cells more vulnerable to chemotherapy and other therapies. However, fasting is difficult for the old and frail subjects.Therefore, FMDs may be more suitable for postoperative dietary intervention in cancer patients. Colorectal tumors have high glucose consumption, which makes tumor cells very sensitive to changes in nutritional metabolism of the surrounding environment (such as diet restriction / fasting). Previous studies have shown that cyclic FMDs are safe and feasible for cancer patients receiving chemotherapy alone. However, the effects of the FMD in patients under radical surgery for colorectal cancer have not been evaluated so far. This study aims to evaluate the impact of FMDs on postoperative recovery and outcomes of patients with colorectal cancer.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
602

participants targeted

Target at P75+ for not_applicable

Timeline
18mo left

Started Jun 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

6 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress73%
Jun 2022Oct 2027

First Submitted

Initial submission to the registry

April 13, 2022

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 20, 2022

Completed
19 days until next milestone

Study Start

First participant enrolled

June 8, 2022

Completed
5.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 30, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2027

Last Updated

May 6, 2026

Status Verified

April 1, 2026

Enrollment Period

5.4 years

First QC Date

April 13, 2022

Last Update Submit

April 30, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Disease-free Survival

    DFS is defined as the interval between the date of first treatment and the date of recurrence or metastasis or secondary primary tumor or death.

    3 years

Secondary Outcomes (12)

  • Overall Survival

    3 years

  • Weight and BMl

    Dietary intervention phase (up to 4 months) and 6 months after surgery

  • upper arm circumference and waist circumference

    Dietary intervention phase (up to 4 months) and 6 months after surgery

  • plasma albumin

    Dietary intervention phase (up to 4 months) and 6 months after surgery

  • Nutritional status score

    Dietary intervention phase (up to 4 months) and 6 months after surgery

  • +7 more secondary outcomes

Other Outcomes (1)

  • Safety outcome

    Dietary intervention phase (up to 4 months)

Study Arms (2)

Fasting mimicking diet

EXPERIMENTAL

The cyclic FMD diet consists of a 5 day regimen: day 1 diet of the diet supplies \~1000 kcal (10% protein, 56% fat, 34% carbohydrate), day 2-5 are identical in formulation and provide 800 kcal (9% protein, 44% fat, 47% carbohydrate). At least 4 cyclic FMDs will be performed after operation.

Other: Fasting mimicking diet

regular diet

NO INTERVENTION

regular diet

Interventions

The fasting mimicking diet consists of a 5 day regimen: day 1 diet of the diet supplies \~1000 kcal (10% protein, 56% fat, 34% carbohydrate), day 2-5 are identical in formulation and provide 800 kcal (9% protein, 44% fat, 47% carbohydrate). At least 4 cyclic FMDs will be performed after operation.

Fasting mimicking diet

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 \~ 80 years old
  • Patients undergoing radical colorectal cancer resection for the first time
  • Preoperative clinical tumor stage III
  • ASA grade I-III grade
  • With BMI 19-32 kg/m2
  • Adequate liver function, adequate renal function and normal cardiac function
  • Willing to participate in the research of the subject and agree to follow up regularly

You may not qualify if:

  • Evidence of distant metastasis before surgery
  • Before surgery, have received treatment of neoadjuvant chemotherapy
  • Type 1 diabetes or intensive insulin therapy
  • Allergies for FMD content
  • Combined with severe primary diseases such as severe immune system or autoimmune system or long-term using of glucocorticoids or immunosuppressant
  • History of opioid abuse, mental illness or cognitive impairment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (6)

Fudan University Huashan Hospital

Shanghai, Shanghai Municipality, 200032, China

Location

Fudan University Shanghai Cancer center

Shanghai, Shanghai Municipality, 200032, China

Location

Fudan University,ZhongShan Hospital

Shanghai, Shanghai Municipality, 200032, China

Location

Shanghai Changhai Hospital, Naval Medical University,

Shanghai, Shanghai Municipality, 200032, China

Location

Shanghai First People's Hospital,Shanghai Jiaotong University

Shanghai, Shanghai Municipality, 200032, China

Location

Shanghai Tongji Hospital,Tongji University

Shanghai, Shanghai Municipality, 200032, China

Location

MeSH Terms

Conditions

Colorectal Neoplasms

Condition Hierarchy (Ancestors)

Intestinal NeoplasmsGastrointestinal NeoplasmsDigestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesColonic DiseasesIntestinal DiseasesRectal Diseases

Study Officials

  • Miaomiao Guo, Dr

    Shanghai Zhongshan Hospital

    PRINCIPAL INVESTIGATOR
  • Meilin Weng, PhD

    Shanghai Zhongshan Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
Allocation concealment:an independent researcher implements the randomized allocation scheme to ensure that the subjects and the researchers who screen the subjects are unable to know the subsequent subjects in advance
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Concealed allocation: the statisticians formulate the randomization scheme and generates the random number.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director

Study Record Dates

First Submitted

April 13, 2022

First Posted

May 20, 2022

Study Start

June 8, 2022

Primary Completion (Estimated)

October 30, 2027

Study Completion (Estimated)

October 30, 2027

Last Updated

May 6, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations