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Determining the Link Between Dietary Patterns, Fecal Microbiome and Response to Neoadjuvant Chemotherapy

Determining the Link Between Dietary Patterns, Fecal Microbiome and Response to Neoadjuvant Chemotherapy in Pancreatic Ductal Adenocarcinoma Patients

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06595160
Enrollment
87
Registered
2024-09-19
Start date
2024-08-05
Completion date
2027-08-07
Last updated
2025-08-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Borderline Resectable Pancreatic Ductal Adenocarcinoma, Resectable Pancreatic Ductal Adenocarcinoma, Stage I Pancreatic Cancer AJCC v8

Brief summary

This study explores the relationship between pre-treatment dietary patterns, fecal microbiome, and response to chemotherapy in patients with pancreatic ductal adenocarcinoma.

Detailed description

PRIMARY OBJECTIVES: I. Evaluate the association between pre-treatment diversity of the fecal microbiome and major pathological response to neoadjuvant chemotherapy in operable pancreatic ductal adenocarcinoma patients. II. Evaluate the association between pre-treatment HEI-2015 dietary score and major pathological response to neoadjuvant chemotherapy in pancreatic ductal adenocarcinoma patients. III. Evaluate the association between pre-treatment HEI-2015 dietary score and diversity of the fecal microbiome in pancreatic ductal adenocarcinoma patients. OUTLINE: This is an observational study. Patients complete a dietary survey and undergo fecal sample collection on study.

Interventions

OTHERNon-Interventional Study

Non-interventional study

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Emory University
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* \* Age ≥ 18 years with signed informed consent form * Patients must have a histological diagnosis of PDAC * Resectable or borderline resectable PDAC on imaging

Exclusion criteria

* \* Patients with locally advanced and metastatic stage IV PDAC * Patients who have already received or completed neoadjuvant chemotherapy for PDAC * Patients with active malignancy receiving systemic therapy

Design outcomes

Primary

MeasureTime frameDescription
Fecal Microbiome Alpha DiversityThrough study completion, an average of two yearsContinuous variables will be presented as median with interquartile range and categorical variables will be presented as frequencies. Univariate logistic regression will be used to compare alpha diversity (mean inverse Simpson index) and relative abundance of operational taxonomic units up to species level in PDAC patients with and without major pathological response to neoadjuvant chemotherapy. Multivariable logistic regression analyses will be performed to identify significant factors associated with major pathological response after adjusting for age, gender, stage at presentation, and type of neoadjuvant chemotherapy and other factors based on univariate analyses or clinical significance.

Secondary

MeasureTime frameDescription
Pathological Response RateThrough study completion, an average of two yearsMajor pathological response rate in surgical specimen of operable PDAC patients after neoadjuvant chemotherapy

Countries

United States

Contacts

Primary ContactMihir M. Shah, MD, FACS, FSSO
mihir.m.shah@emory.edu404-778-3307

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026