The Gut Microbiome in FLT3-ITD+ AML Undergoing Allo-HSCT With Or Without Sorafenib Maintenance After Allo-HSCT

October 25, 2022 updated by: Xuanli, Nanfang Hospital of Southern Medical University

The Gut Microbiome Changes in FMS-like Tyrosine Kinase 3 (FLT3)-ITD Positive Acute Myeloid Leukemia Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplantation With or Without Sorafenib Maintenance Post-transplantation

This prospective trial investigates the effect of sorafenib maintenance therapy in FLT3-ITD AML patients after allo-HSCT in terms of gut microbiome.

Study Overview

Detailed Description

Hematopoietic stem cell transplantation (HSCT) is used as a potentially curative therapy for patients with hematopoietic malignancies. Sorafenib, an inhibitor of multiple kinases including FLT3, has shown promising activity in FLT3-ITD-positive AML. Our previous studies demonstrated that sorafenib maintenance post-transplantation could improve the outcomes of FLT3-ITD-positive AML patients, which is associated with sorafenib enhancing the graft-versus-leukemia (GVL) effect. Recent studies show that gut microbiome is associated with graft-versus-host-disease (GVHD) and GVL. However, the exact mechanism of sorafenib enhancing the GVL effect and the influence of gut microbiome on sorafenib maintenance after allo-HSCT remain unknown.

Study Type

Observational

Enrollment (Anticipated)

60

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 Locations

    • Guangdong
      • Guangzhou, Guangdong, China, 510515
        • Recruiting
        • Department of Hematology,Nanfang Hospital, Southern 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

16 years to 63 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

FLT3-ITD Positive AML Undergoing Allo-HSCT

Description

Inclusion Criteria:

  • FLT3-ITD Positive AML
  • Allo-HSCT Recipients

Exclusion Criteria:

  • Intolerance to sorafenib pre-transplantation
  • Cardiac dysfunction (particularly congestive heart failure)
  • Hepatic abnormalities (bilirubin ≥ 3 mg/dL, aminotransferase> 2 times the upper limit of normal)
  • Renal dysfunction (creatinine clearance rate < 30 mL/min)
  • Any abnormality in a vital sign (e.g., heart rate, respiratory rate, or blood pressure)
  • Patients with any conditions not suitable for the trial (according to the investigators' decision)

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
sorafenib group
FLT3-ITD+ AML patients who receive sorafenib maintenance therapy after Allo-HSCT. Sorafenib will be used from day 30 to 180 post-transplantation. The initial dose of sorafenib is 400 mg orally twice daily and is adjusted in case of suspected toxicity or resistance (dose range, 200-800 mg daily).
The initial dose of sorafenib is 400 mg orally twice daily and is adjusted in case of suspected toxicity or resistance (dose range, 200-800 mg daily).
Other Names:
  • BAY 43-9006
  • Nexavar
  • BAY-673472
  • BAY 545-9085
non-sorafenib group
FLT3-ITD+ AML patients who do not receive sorafenib maintenance therapy after Allo-HSCT.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Variation of Gut Microbiota Composition and Diversity
Time Frame: 3 months
Variation of gut microbiota composition and diversity, as determined by 16s rRNA sequencing of serial stool samples, during Sorafenib Maintenance Therapy.
3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
OS
Time Frame: 1 year
Overall survival
1 year
Variation of gut barrier integrity
Time Frame: 3 months
As determined by serum levels of zonulin, I-FABP, and citrulline or other potential candidates.
3 months
NRM
Time Frame: 1 year
Non-relapse mortality (NRM)
1 year
Acute GVHD
Time Frame: 100 days
Acute Graft-Versus-Host-Disease
100 days
Chronic GVHD
Time Frame: 1 year
Chronic Graft-Versus-Host-Disease
1 year
AEs
Time Frame: 1 year
Adverse Events
1 year
LFS
Time Frame: 1 year
Leukemia-free survival
1 year
Relapse
Time Frame: 1year
Cumulative incidence of relapse
1year

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Li Xuan, MD, Nanfang Hospital of Southern Medical University

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 1, 2022

Primary Completion (Anticipated)

December 31, 2023

Study Completion (Anticipated)

December 31, 2024

Study Registration Dates

First Submitted

October 25, 2022

First Submitted That Met QC Criteria

October 25, 2022

First Posted (Actual)

October 27, 2022

Study Record Updates

Last Update Posted (Actual)

October 27, 2022

Last Update Submitted That Met QC Criteria

October 25, 2022

Last Verified

October 1, 2022

More Information

Terms related to this study

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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