Washed Microbiota Transplantation for Malnutrition After Nonphysiological Reconstruction of the Upper Gastrointestinal Tract

July 6, 2025 updated by: Faming Zhang, The Second Hospital of Nanjing Medical University

An Open-label, Multicenter, Randomized Clinical Trial for Malnutrition After Nonphysiological Reconstruction of the Upper Gastrointestinal Tract: Washed Microbiota Transplantation Via Mid-gut Tube Versus Colonic Transendoscopic Enteral Tube

This is a prospective, randomized, multicenter study to evaluate WMT in improving nutritional status in malnourished patients who underwent nonphysiological reconstruction of the upper gastrointestinal tract. In this multicenter trial, sixty-two patients will be enrolled in forteen Chinese sites. Participants will be randomized at a ratio of 1:1 to receive three WMTs through either mid-gut tube or colonic TET. After WMT, each participant will receive free diet plus home enteral nutrition. Home enteral nutrition should last for 2 months at home, with blood, urine and stool samples taken and stored at baseline and 2 months after WMT.

Study Overview

Status

Recruiting

Detailed Description

Background: Malnutrition is a common complication of nonphysiological reconstruction of the upper gastrointestinal tract. The potential of washed microbiota transplantation (WMT) in improving nutritional status have been reported. The surgery procedure alters the anatomy and physiology of the digestive tract, which might impact the efficacy and safety of WMT when choosing different delivery way. This study aims to explore the optimal delivery of WMT in malnourished patients after rerouting of the upper gastrointestinal tract.

Methods and design: This multicenter, open-label, and randomized controlled trial will be conducted at forteen hospitals in China. Enteral nutrition (EN) will be administrated at enrollment. Participants will be then randomized at a ratio of 1:1 to receive three WMTs through either mid-gut tube or colonic transendoscopic enteral tubing (TET). Then the patients will receive free diet coupled with home enteral nutrition (HEN) for 8 weeks in both groups, with blood, urine and stool samples taken and stored at baseline and 2 months after WMT. The observation duration is 8 weeks. The primary endpoint is nutritional status of the patients. The nutritional status data obtained at baseline and 8 weeks after discharge includes body mass index (BMI) and skeletal muscle index (SMI). The secondary endpoints are nutritional assessment, nutrition-based laboratory indices, 60-day readmission rate, quality of life, gastrointestinal symptom scale, the safety of WMT and further analysis of the biological specimens.

Conclusion: It is estimated that WMT would help improve nutrition status. Moreover, this trial has the potential to identify the optimal delivery of WMT for patients undergoing nonphysiological reconstruction of the upper gastrointestinal tract.

Study Type

Interventional

Enrollment (Estimated)

62

Phase

  • 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 Locations

    • Jiangsu
      • Nanjing, Jiangsu, China, 210000
        • Recruiting
        • The Second Affiliated Hospital of Nanjing Medical University
        • Contact:

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

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients undergone nonphysiological reconstruction of the gastrointestinal tract (such as Billroth-II, Roux-en-Y, Child, Whipple reconstruction)
  • Aged over 18 years old;
  • Malnutrition is assessed by Nutritional Risk Screening 2002 score≥3 and Patient Generated Subjective Global Assessment (PG-SGA) score≥4;
  • Written informed consent;

Exclusion Criteria:

  • Expected survival time < 3 months;
  • Still on anti-tumor therapy or it is expected during the visit;
  • Complicated with ascites or edema caused by malnutrition;
  • Known organic gastrointestinal disease (e.g., gastrointestinal infection, inflammatory bowel disease, or radiation enteritis);
  • Undergone other gastrointestinal surgery (e.g., enterectomy, enterostomy, or gastrostomy) except appendectomy or anal fistula surgery;
  • Complicated with contraindications of enteral nutrition such as ileus, active gastrointestinal bleeding, and shock;
  • Cannot tolerate gastroscopy or colonoscopy;
  • Severe comorbidities (e.g., diabetes, cardiopulmonary failure, severe liver or or kidney diseases);
  • Complicated with other wasting diseases (e.g., active tuberculosis, hyperthyroidism, diabetes, HIV, active hepatitis, hip fracture, craniocerebral injury, etc.);
  • A history of anti-infective treatment within 30 days before enrollment; or need anti-infective treatment at the time of enrollment; or unwilling to stop taking drugs that affect gut microbes, such as probiotics;
  • Can not tolerate oral enteral nutrition;
  • Women who are pregnant or breastfeeding;
  • Participating in another clinical trial;
  • Deemed unsuitable for inclusion by the investigators.

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
Intervention / Treatment
Experimental: midgut
A soft TET tube is inserted into the colon via the paraffin-lubricated gastroscope channel. If patients cannot tolerate endoscopy or anesthesia, or it is difficult to confirm the bypass intestine under endoscopy, a nasojejunal tube will be inserted under digital fluoroscopy.
Each patient will receive washed microbiota transplantation each day for three consecutive days. After WMT, participants will receive free diet plus home enteral nutrition (solution at a 750ml daily dosage that provides 750 kcal energy) at home for 8 weeks.
Other Names:
  • home enteral nutrition
Experimental: colonic
A soft TET tube is inserted into the colon via the paraffin-lubricated colonoscope channel.
Each patient will receive washed microbiota transplantation each day for three consecutive days. After WMT, participants will receive free diet plus home enteral nutrition (solution at a 750ml daily dosage that provides 750 kcal energy) at home for 8 weeks.
Other Names:
  • home enteral nutrition

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes of weight and height
Time Frame: baseline, 8 weeks post transplantation
Weight and height will be combined to report BMI in kg/m^2.
baseline, 8 weeks post transplantation
Changes of the third lumbar vertebrae skeletal muscle mass and height
Time Frame: baseline, 8 weeks post transplantation
The third lumbar vertebrae skeletal muscle mass represents the sum of the cross-sectional areas of the skeletal muscles at the L3 level, including the psoas major, the erector spinae, the quadratus lumborum, the musculus transversus abdominis, the obliquus externus abdominis and the obliquus internus abdominis. Skeletal muscle mass and height will be combined to report the third lumbar vertebrae skeletal muscle mass index(L3 SMI) in cm^2/m^2.
baseline, 8 weeks post transplantation
Changes of weight
Time Frame: baseline, 8 weeks post transplantation
baseline, 8 weeks post transplantation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes of Patient-Generated Subjective Global Assessment (PG-SGA)
Time Frame: baseline, 8 weeks post transplantation
Patient-Generated Subjective Global Assessment (PG-SGA) includes patient-generated historical components (Weight History, Food Intake, Symptoms and Activities and Function) and the professional part (Diagnosis, Age, Metabolic stress, and Physical Exam).
baseline, 8 weeks post transplantation
Changes of the Gastrointestinal Symptom Rating Scale(GSRS)
Time Frame: baseline, 4 weeks, 8 weeks post transplantation
GSRS is a 13-item test to make a comprehensive assessment of common gastrointestinal symptom and each item receives a value from 0 to 3, with higher value indicating worse gastrointestinal condition.
baseline, 4 weeks, 8 weeks post transplantation
60-day readmission rate
Time Frame: From enrollment to the end of treatment at 8 weeks
The 60-day readmission is recorded and defined as nonelective readmission within 60 days after the treatment.
From enrollment to the end of treatment at 8 weeks
The incidence of treatment-related adverse events (AE) assessed by CTCAE, Version 5.0
Time Frame: From enrollment to the end of treatment at 8 weeks
The severity of AE was graded as mild (grade 1), moderate (grade 2), severe/disabling (grade 3), life threatening (grade 4), and death (grade 5). All AE were divided in definitely, probably and possibly related to treatment. The treatment-related AE we focused on included microbiota-related AEs (e.g., infection, diarrhea, abdominal pain, etc.) and route of delivery related AEs (e.g., nausea, vomiting, etc.).
From enrollment to the end of treatment at 8 weeks
Changes of the 5-level EuroQoL Group's 5-dimension (EQ-5D-5L)
Time Frame: baseline, 4 weeks, 8 weeks post transplantation
EQ-5D-5L is a 5-dimension questionnaire measuring health state and each dimension represents the level from 1 to 5, with higher level indicating worse health state.
baseline, 4 weeks, 8 weeks post transplantation
Changes of the Pittsburgh Sleep Quality Index (PSQI)
Time Frame: baseline, 4 weeks, 8 weeks post transplantation
PSQI is a self-rated questionnaire which assesses sleep quality over a 1-month time interval. Nineteen items generate seven component scores: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleeping medication, and daytime dysfunction. The sum of scores for seven components yields one global score, with higher score indicating worse sleep quality.
baseline, 4 weeks, 8 weeks post transplantation
Changes of the Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue)
Time Frame: baseline, 4 weeks, 8 weeks post transplantation
FACIT-Fatigue is a 13-item test measuring fatigue and each item receives a value from 0 to 4, with higher value indicating worse fatigue state.
baseline, 4 weeks, 8 weeks post transplantation
The difference of the gut microbiota composition before and after washed microbiota transplantation
Time Frame: baseline, 8 weeks post transplantation
The composition of the gut microbiota is evaluated by sequencing faecal metagenome. We evaluate the differences in the structure of the flora and its metabolism.
baseline, 8 weeks post transplantation
Change of insulin-like growth factor I(IGF-I)
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for Insulin-like growth factor I.
baseline, 8 weeks post transplantation
Changes of hemoglobin
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for hemoglobin
baseline, 8 weeks post transplantation
Changes of albumin
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for albumin
baseline, 8 weeks post transplantation
Changes of prealbumin
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for prealbumin
baseline, 8 weeks post transplantation
Changes of cholesterol
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for cholesterol
baseline, 8 weeks post transplantation
Changes of transferrin
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for transferrin
baseline, 8 weeks post transplantation
Changes of C-reactive protein
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for C-reactive protein
baseline, 8 weeks post transplantation
Changes of full spectrum of bile acidsare
Time Frame: baseline, 8 weeks post transplantation
Blood is tested for full spectrum of bile acidsare, including Cholic acid, deoxycholic acid, chenodeoxycholic acid, urs/hyodeoxycholic acid, lithocholic acid, glycocholic acid, glycolithocholic acid, glycodeoxycholic acid, glycochenodeoxycholic acid, glycouran Deoxycholic acid, taurocholic acid, taurolithocholic acid, taurodeoxycholic acid, taurochenodeoxycholic acid, tauroursodeoxycholic acid.
baseline, 8 weeks post transplantation
Changes of glucose breath testing
Time Frame: baseline, 8 weeks post transplantation
A baseline breath sample was obtained, patients drank 50g glucose dissolved in 8 ounces of water, and breath samples were obtained at 15-minute intervals for 2 hours. Samples were analyzed to calculate breath H2 and/or breath CH4.
baseline, 8 weeks post transplantation

Collaborators and Investigators

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

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

October 20, 2024

Primary Completion (Estimated)

October 31, 2025

Study Completion (Estimated)

October 31, 2025

Study Registration Dates

First Submitted

June 19, 2022

First Submitted That Met QC Criteria

June 26, 2022

First Posted (Actual)

June 30, 2022

Study Record Updates

Last Update Posted (Actual)

July 10, 2025

Last Update Submitted That Met QC Criteria

July 6, 2025

Last Verified

October 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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