Effect of FMD on Colorectal Cancer Patients (FCRC22)

June 10, 2026 updated by: Changhong Miao, Fudan University

Effect of Perioperative Dietary Restriction Strategy on Postoperative Recovery and Outcomes of Patients With Colorectal Cancer : a Multicenter Prospective, Randomized, Controlled Study

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
602

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: Changhong Miao, PhD
  • Phone Number: +8618217755229
  • Email: miaochh1@126.com

Study Locations

  • China
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200032
        • Fudan University Shanghai Cancer Center
      • Shanghai, Shanghai Municipality, China, 200032
        • Fudan University Huashan Hospital
      • Shanghai, Shanghai Municipality, China, 200032
        • Fudan University,ZhongShan Hospital
      • Shanghai, Shanghai Municipality, China, 200032
        • Shanghai Changhai Hospital, Naval Medical University,
      • Shanghai, Shanghai Municipality, China, 200032
        • Shanghai First People's Hospital,Shanghai Jiaotong University
      • Shanghai, Shanghai Municipality, China, 200032
        • Shanghai Tongji Hospital,Tongji University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

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

Exclusion Criteria:

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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Fasting mimicking diet
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
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.
No Intervention: regular diet

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Disease-free Survival
Time Frame: 3 years
DFS is defined as the time from randomisation to the first occurrence of locoregional recurrence, distant metastasis, or death from any cause, whichever occurs first. The data of participants without an event will be censored at the date of the last follow-up. Follow-up of survival will be conducted at least every 3 months beginning at 6 months after surgery. Postoperative recurrence or metastasis will be determined on the basis of imaging studies, endoscopic examination, or histopathological assessment of biopsy specimens, with a review also performed by an expert panel.
3 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Overall Survival
Time Frame: 3 years
OS is defined as the time from randomisation to death from any cause. The data of participants who are alive at the end of follow-up will be censored at the date of the last follow-up.
3 years
Weight and BMl
Time Frame: Dietary intervention phase (up to 4 months) and 6 months after surgery
Weight will be measured to the nearest 0.1 kg using a calibrated electronic scale. Measurements will be performed in the morning after an overnight fast and voiding, with participants in light clothing and without shoes. Height will be measured to the nearest 1 cm without shoes. BMI is calculated as weight divided by height squared (kg/m²). Measurements will be performed before surgery, after surgery, and at 1, 2, 3, 4 and 6 months.
Dietary intervention phase (up to 4 months) and 6 months after surgery
upper arm circumference and waist circumference
Time Frame: Dietary intervention phase (up to 4 months) and 6 months after surgery
Upper arm circumference and waist circumference will be measured to the nearest 0.1 cm using a non-stretchable tape, in the morning after an overnight fast and with the arms abducted to horizontal. Measurements will be performed before surgery, after surgery, and at 1, 2, 3, 4 and 6 months.
Dietary intervention phase (up to 4 months) and 6 months after surgery
plasma albumin
Time Frame: Dietary intervention phase (up to 4 months) and 6 months after surgery
Plasma albumin concentration will be measured in the morning after an overnight fast by accredited clinical laboratories, with results reported in g/L. Measurements will be performed before surgery, after surgery, and at 1, 2, 3, 4 and 6 months.
Dietary intervention phase (up to 4 months) and 6 months after surgery
Nutritional status
Time Frame: Dietary intervention phase (up to 4 months) and 6 months after surgery
Nutritional status will be assessed using the Patient-Generated Subjective Global Assessment (PG-SGA) score. Higher scores (0-53 scale) indicate a worse nutritional status. Assessments will be performed before surgery, after surgery, and at 1, 2, 3, 4 and 6 months.
Dietary intervention phase (up to 4 months) and 6 months after surgery
Quality of life (QOL)
Time Frame: Dietary intervention phase (up to 4 months) and 6 months after surgery
QoL will be assessed using the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30). Higher total scores for the level 4 rating items, on a scale of 0-112, indicate a worse QoL. Assessments will be performed before surgery, after surgery, and at months 1, 2, 3, 4 and 6 months.
Dietary intervention phase (up to 4 months) and 6 months after surgery
Exercise tolerance
Time Frame: Dietary intervention phase (up to 4 months) and 6 months after surgery
Exercise tolerance will be assessed using metabolic equivalent of task (MET) values. The MET values will be derived from patient-reported daily physical activities and with reference to the 2011 Compendium of Physical Activities Higher scores (1-23 scale) indicate a better exercise tolerance. Assessments will be conducted before surgery, after surgery, and at months 1, 2, 3, 4 and 6 months.
Dietary intervention phase (up to 4 months) and 6 months after surgery
Chemotherapy-related toxicities
Time Frame: within 2 weeks after each chemotherapy cycle
In participants receiving postoperative adjuvant chemotherapy, chemotherapy-related toxicities, including haematological, gastrointestinal, neurological and other adverse events, will be recorded after each chemotherapy cycle and graded according to the Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0).
within 2 weeks after each chemotherapy cycle
insulin-like growth factor 1 (IGF-1)
Time Frame: 4 months
IGF-1 will be measured in the morning after an overnight fast by accredited clinical laboratories, with results reported in ng/mL. Measurements will be conducted before surgery, after surgery, and after dietary intervention .
4 months
Fasting serum glucose (FG)
Time Frame: 4 months
FG will be measured in the morning after an overnight fast by accredited clinical laboratories, with results reported in mmol/L. Measurements will be conducted before surgery, after surgery, and after dietary intervention.
4 months
Fasting insulin (FI)
Time Frame: 4 months
FI will be measured in the morning after an overnight fast by accredited clinical laboratories, with results reported in uU/mL. Measurements will be conducted before surgery, after surgery, and after dietary intervention.
4 months
C-peptide
Time Frame: 4 months
C-peptide will be measured in the morning after an overnight fast by accredited clinical laboratories, with results reported in ng/mL. Measurements will be conducted before surgery, after surgery, and after dietary intervention.
4 months

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Safety outcome
Time Frame: Dietary intervention phase (up to 4 months)
Safety will be assessed in participants following at least one administration of the FMD regimen. Adverse events occurring during the intervention period will be recorded at each follow-up contact and graded according to CTCAE v5.0. The investigators will assess the severity of each event and its potential relationship with FMD intervention. Safety outcomes will include the frequency and severity of FMD-related adverse events. Predefined FMD-related adverse events include headache, weakness, fatigue, hunger, gastrointestinal symptoms, hypoglycemia, electrolyte abnormalities, and clinically significant weight loss.
Dietary intervention phase (up to 4 months)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Fudan University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Changhai Hospital
Shanghai Zhongshan Hospital
Huashan Hospital
Tongji Hospital
Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
Shanghai Cancer Hospital, China

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Miaomiao Guo, Dr, Shanghai Zhongshan Hospital
  • Principal Investigator: Meilin Weng, PhD, Shanghai Zhongshan Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 8, 2022

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 30, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 30, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 13, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 19, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 20, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 12, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • B2020-063(2)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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