NCT01542541

Brief Summary

Patients who undergo PET-CT scans to look for cancer are given an intravenous contrast (FDG) that is taken-up by active cells such as cancer cells. This contrast can then be seen in the body using the PET-CT scanner. However, cells in the colon also take up the FDG, and can produce "false positive" signals from the colon. Our hypothesis is that much of this signal comes from bacteria that are present in high concentrations in the colon. If this is the case, using an antibiotic to suppress the activity of bacteria may improve the ability of PET-CT to distinguish abnormal cells from normal cells in the colon.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
68

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2011

Geographic Reach
1 country

1 active site

Status
completed

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

Study Start

First participant enrolled

July 1, 2011

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

February 27, 2012

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 2, 2012

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2012

Completed
3.3 years until next milestone

Results Posted

Study results publicly available

January 27, 2016

Completed
Last Updated

December 13, 2017

Status Verified

November 1, 2017

Enrollment Period

1.3 years

First QC Date

February 27, 2012

Results QC Date

December 18, 2015

Last Update Submit

November 15, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • SUVmax of FDG in Each Colonic Segment

    Day 2

Secondary Outcomes (1)

  • SUVavg in Each Colonic Segment

    Day 2

Study Arms (2)

Rifaximin

EXPERIMENTAL
Drug: Rifaximin

Control

NO INTERVENTION

Randomly-selected matched PET-CT scans performed on same day as intervention group.

Interventions

550mg BID for 2 days

Also known as: Xifaxan
Rifaximin

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients undergoing clinically-indicated PET-CT scan for non-GI lymphoma

You may not qualify if:

  • Patients with known Inflammatory Bowel Disease
  • Patients with known colon cancer

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Beth Israel Deaconess Medical Center

Boston, Massachusetts, 02215, United States

Location

MeSH Terms

Interventions

Rifaximin

Intervention Hierarchy (Ancestors)

RifamycinsHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsLactams, MacrocyclicMacrocyclic CompoundsPolycyclic Compounds

Results Point of Contact

Title
Dr Alan Moss
Organization
BIDMC

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor of Medicine

Study Record Dates

First Submitted

February 27, 2012

First Posted

March 2, 2012

Study Start

July 1, 2011

Primary Completion

October 1, 2012

Study Completion

October 1, 2012

Last Updated

December 13, 2017

Results First Posted

January 27, 2016

Record last verified: 2017-11

Locations