Skip to content

Proton Pump Inhibitors and Dysbiosis in Cirrhosis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01458990
Enrollment
60
Registered
2011-10-25
Start date
2011-10-31
Completion date
2018-02-28
Last updated
2018-03-19

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

Conditions

Cirrhosis, Healthy

Brief summary

The purpose of this study is to find out whether the use of medications that suppress acid in your stomach can change the composition of your bowel bacteria.

Interventions

DRUGOmeprazole

20mg PO BID for 20 days

Sponsors

Hunter Holmes Mcguire Veteran Affairs Medical Center
Lead SponsorFED

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Intervention model description

PPI withdrawal (decompensated patients only) and PPI initiation (compensated and decompensated patients)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

for PPI initiation study: * Cirrhosis not on current PPI or acid suppressive therapy * No systemic antibiotics or probiotics

Exclusion criteria

for PPI initiation study: * On systemic antibiotics * On PPI or acid suppression therapy already * unable to give informed consent * Allergy to proton pump inhibitors Inclusion Criteria for PPI withdrawal study: * Cirrhosis on current PPI for an FDA-unapproved indication * No systemic antibiotics or probiotics

Design outcomes

Primary

MeasureTime frameDescription
Number of Patients With Overgrowth of Oral Microbiota in Their Stool After PPI Therapy Withdrawal or Initiation2 weeksAnalysis at baseline will be compared to that at 2 weeks using Multitagged sequencing. Number of patients with overgrowth of oral microbiota in their stool after PPI therapy withdrawal or initiation were specifically analyzed.

Secondary

MeasureTime frameDescription
Number of Patients With Adverse Events During Initiation or Withdrawal of PPI Therapy2 weeksAnalysis at baseline will be compared to that at 2 weeks. This will be specifically, changes in those with PPI withdrawal compared to those with PPI initiation

Countries

United States

Participant flow

Recruitment details

Participants recruited from McGuire VAMC hepatology clinics

Participants by arm

ArmCount
PPI Inititation
Adding 40mg omeprazole QD for 14 days
45
PPI Withdrawal
The intervention here is systematically withdrawing chronic PPI for 14 days
15
Total60

Baseline characteristics

CharacteristicPPI WithdrawalTotalPPI Inititation
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
1 Participants6 Participants5 Participants
Age, Categorical
Between 18 and 65 years
14 Participants54 Participants40 Participants
Age, Continuous59 years
STANDARD_DEVIATION 6.7
58 years
STANDARD_DEVIATION 7
58 years
STANDARD_DEVIATION 7.6
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
6 Participants22 Participants16 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
9 Participants38 Participants29 Participants
Region of Enrollment
United States
15 participants60 participants45 participants
Sex: Female, Male
Female
1 Participants4 Participants3 Participants
Sex: Female, Male
Male
14 Participants56 Participants42 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 450 / 15
other
Total, other adverse events
0 / 450 / 15
serious
Total, serious adverse events
0 / 450 / 15

Outcome results

Primary

Number of Patients With Overgrowth of Oral Microbiota in Their Stool After PPI Therapy Withdrawal or Initiation

Analysis at baseline will be compared to that at 2 weeks using Multitagged sequencing. Number of patients with overgrowth of oral microbiota in their stool after PPI therapy withdrawal or initiation were specifically analyzed.

Time frame: 2 weeks

Population: Comparison were made between groups on/off PPI therapy using Linear discriminant analysis effect size (LEFSe) and using the Quantitative Insights Into Microbial Ecology (QIIME) pipeline and also the relative proportion (%) of oral-origin microbiota were studied

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PPI InititationNumber of Patients With Overgrowth of Oral Microbiota in Their Stool After PPI Therapy Withdrawal or Initiation45 Participants
PPI WithdrawalNumber of Patients With Overgrowth of Oral Microbiota in Their Stool After PPI Therapy Withdrawal or Initiation15 Participants
Secondary

Number of Patients With Adverse Events During Initiation or Withdrawal of PPI Therapy

Analysis at baseline will be compared to that at 2 weeks. This will be specifically, changes in those with PPI withdrawal compared to those with PPI initiation

Time frame: 2 weeks

Population: No safety or tolerability issues were seen during the study

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
PPI InititationNumber of Patients With Adverse Events During Initiation or Withdrawal of PPI Therapy0 Participants
PPI WithdrawalNumber of Patients With Adverse Events During Initiation or Withdrawal of PPI Therapy0 Participants

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026