NCT04189393

Brief Summary

The MA-PPING is a multicenter prospective observational study that includes patients undergoing surgery for gastrointestinal cancer. The study aims to map the oral and gut microbiome of patients diagnosed with pancreatic, esophageal or colorectal cancer during their surgical patient journey from the moment of diagnosis until full recovery (three months after surgery).

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2020

Status
unknown

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

First Submitted

Initial submission to the registry

November 25, 2019

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 6, 2019

Completed
26 days until next milestone

Study Start

First participant enrolled

January 1, 2020

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2021

Completed
Last Updated

December 6, 2019

Status Verified

November 1, 2019

Enrollment Period

1.8 years

First QC Date

November 25, 2019

Last Update Submit

December 4, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Compositional changes of the oral and gut microbiome, assessed by alpha-diversity using 16S rRNA (ribosomal ribonucleic acid) sequencing, described in a surgical patient journey from moment of diagnosis until full recovery

    Changes of the microbiome composition during the surgical treatment quantified as alpha-diversity by 16S rRNA sequencing. Samples will be collected on 7 moments, starting one month before surgery until three months after surgery.

    4 months

Secondary Outcomes (5)

  • Compositional changes of the oral and gut microbiome, assessed by beta-diversity using 16S rRNA sequencing, correlated with neo-adjuvant therapy

    1 month

  • Compositional changes of the oral and gut microbiome, assessed by beta-diversity using 16S rRNA sequencing, correlated with antibiotic prophylaxis

    1 week

  • Compositional changes of the oral and gut microbiome, assessed by beta-diversity using 16S rRNA sequencing, correlated with bowel preparation

    1 week

  • Compositional changes of the oral and gut microbiome, assessed by beta-diversity using 16S rRNA sequencing, correlated with selective decontamination of the digestive tract (SDD)

    1 week

  • Compositional changes of the oral and gut microbiome, assessed by beta-diversity using 16S rRNA sequencing, correlated to the development of infectious complications (30-day)

    1 month

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All adult patients who are presented/present at the participating hospitals with a proven gastrointestinal malignancy and scheduled for surgery.

You may qualify if:

  • Patients with proven malignancy of the distal esophagus, pancreatic head/corpus, colon or rectum
  • Patients undergoing primary elective surgery with construction of an anastomosis of the gastrointestinal tract
  • Adult patients above age 18 years
  • Written informed consent

You may not qualify if:

  • History of chronic gastro-intestinal disease e.g. Crohns disease and ulcerative colitis
  • Presence of acute gastrointestinal infection
  • Chronic use of oral antibiotics (3 months or longer)
  • Patients undergoing gastrointestinal surgery for gastrointestinal cancer in acute setting
  • Patients undergoing construction of an end/loop colostomy or ileostomy (following primary resection)
  • Patients undergoing colon and/ or rectal resection without construction of an anastomosis
  • Patients who have insufficient knowledge of the Dutch language
  • Patients who are not able to give reliable answers to the questionnaires due to a (mental) disease or (cognitive) condition
  • Patients who are not able to collect microbiome samples due to a physical or mental condition

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Biospecimen

Retention: SAMPLES WITH DNA

Four types of samples will be collected for microbiome analysis: saliva, feces, intraoperative mucosal swabs and drain fluid.

MeSH Terms

Conditions

Gastrointestinal NeoplasmsColorectal NeoplasmsPancreatic NeoplasmsEsophageal NeoplasmsRectal NeoplasmsColonic NeoplasmsAnastomotic Leak

Condition Hierarchy (Ancestors)

Digestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesGastrointestinal DiseasesIntestinal NeoplasmsColonic DiseasesIntestinal DiseasesRectal DiseasesEndocrine Gland NeoplasmsPancreatic DiseasesEndocrine System DiseasesHead and Neck NeoplasmsEsophageal DiseasesPostoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Stefan AW Bouwense, MD PhD

    Radboud University Medical Center Nijmegen

    PRINCIPAL INVESTIGATOR
  • Martijn WJ Stommel, MD PhD

    Radboud University Medical Center Nijmegen

    PRINCIPAL INVESTIGATOR
  • Harry van Goor, MD PhD

    Radboud University Medical Center Nijmegen

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Melissa NN Arron, MD

CONTACT

Richard PG ten Broek, MD PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 25, 2019

First Posted

December 6, 2019

Study Start

January 1, 2020

Primary Completion

November 1, 2021

Study Completion

November 1, 2021

Last Updated

December 6, 2019

Record last verified: 2019-11