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Fundamental Modification of the Gut Microbiota in the Treatment of Refractory Crohn's Disease

Fundamental Modification of the Gut Microbiota in the Treatment of Refractory Crohn's Disease

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02765256
Acronym
Holiday
Enrollment
8
Registered
2016-05-06
Start date
2016-08-31
Completion date
2018-12-31
Last updated
2024-02-06

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

Conditions

Crohn's Disease

Brief summary

To determine the effect of a novel gut microbiota-targeted therapeutic regimen (bowel lavage and antibiotics with or without an antifungal) in the management of active Crohn's Disease (CD) that is refractory to conventional, immunosuppressive therapy.

Interventions

DRUGFluconazole

400mg orally once daily (Day 1-14)

DRUGVancomycin

500mg oral suspension 4 times daily (Day 1-14)

neomycin 1000 mg orally three times daily (Days 1-3)

DRUGCiprofloxacin

ciprofloxacin 750 mg orally twice daily (Day 4-14)

DRUGPolyethylene Glycol 3350

238 g dissolved in 64 ounces of Gatorade or Crystal Lite on day 2

PRN (as needed) Promethazine 12.5mg up to every four hours (Days 1-3).

DRUGFluconazole placebo

Once daily

Sponsors

Children's Hospital of Philadelphia
CollaboratorOTHER
Crohn's and Colitis Foundation
CollaboratorOTHER
University of Pennsylvania
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Participant is capable of giving informed consent * Males or females 18-75 years of age * Normal kidney function (defined by normal serum creatinine \[male: \<1.27 mg/dL; female: \<1.03 mg/dL\]) * Normal aspartate aminotransferase \[AST\] (\<41 U/L), alanine aminotransferase \[ALT\] (\<63 U/L), and alkaline phosphatase (\<126 U/L) * Active CD defined as HBI ≥ 7 * CRP \> 5 mg/dL or hs-CRP \> 10mg/L (or 1mg/dL) or fecal calprotectin (FCP) \> - - 350 mcg/g (within one month of enrollment) * Have been treated with one of the following therapies\*\* for at least 8 weeks with primary nonresponse or an initial response, followed by loss of response \[LOR\] (self-reported worsening of symptoms for ≥ 7 days): azathioprine, 6-mercaptopurine, methotrexate, adalimumab, certolizumab, golimumab, infliximab, natalizumab, vedolizumab, or ustekinumab \*\*These medications must have been administered at standard, therapeutic dosages.

Exclusion criteria

* Known or suspected stricturing disease producing obstructive symptoms * Active Clostridium difficile infection * Unwillingness to provide informed consent * Allergy or intolerance to the medications used in this study * History of kidney disease * History of liver disease * Pregnant or lactating females * Baseline QTc interval on EKG \> 430 in males or \> 450 in females * Participants who, in the opinion of the investigator, may be non-compliant with study schedules or procedures

Design outcomes

Primary

MeasureTime frameDescription
Change in Disease Activity by Harvey Bradshaw Indexenrollment visit (baseline) and 15 daysThe primary endpoint will be the change in disease activity, as measured by Harvey-Bradshaw Index (HBI) score, between the enrollment visit and Day 15. All participants who withdraw for any reason prior to day 15 will be considered treatment failures. The HBI is a clinical score where points are given for each category below plus number of liquid bowel movements in previous day. A score of 3 or lower is considered remission. A score of 8 or higher is considered severe disease. General Well Being Very well 0 points Slightly below par 1 point Poor 2 points Very poor 3 points Terrible 4 points Abdominal Pain None 0 points Mild 1 point Moderate 2 points Severe 3 points Abdominal Mass None 0 points Dubious 1 point Definite 2 points Definite and tender 3 points Complications None 0 points Arthralgias +1 point Uveitis +1 point Erythema Nodosum + 1 point Aphthous ulcers +1 point Pyoderma Gangrenosum + 1 point Anal fissure + 1 point New fistula + 1
Change in Disease Activity by Fecal Calprotectin (FCP)enrollment visit (baseline) and 15 daysThe second primary outcome measure will be the change in disease activity, as measured by fecal calprotectin, between the enrollment visit and day 15. The fecal calprotectin is a stool test which measures intestinal inflammation.

Secondary

MeasureTime frameDescription
The Change in High-sensitivity C-reactive Protein (hsCRP)enrollment visit (baseline) and 15 daysA secondary outcome measure will be the change in high-sensitivity C-reactive protein between the enrollment visit and day 15. The high-sensitivity C-reactive protein is a blood test which measures systemic inflammation.
Safety and Tolerability of the Treatment Regimen Based on Medication Side Effects and/or Adverse Events (AEs).105 daysNumber of Medication Side Effects and/or Adverse Events (AEs)

Countries

United States

Participant flow

Participants by arm

ArmCount
Fluconazole
Vancomycin 500 mg oral suspension four times daily (Day 1-14), plus neomycin 1000 mg orally three times daily (Days 1-3), plus ciprofloxacin 750 mg orally twice daily (Day 4-14), plus Polyethylene Glycol 3350 (Miralax) 238 g dissolved in 64 ounces of Gatorade or Crystal Lite on day 2, plus fluconazole 400 mg orally once daily (Day 1-14). PRN (as needed) Promethazine 12.5mg up to every four hours (Days 1-3). Fluconazole: 400mg orally once daily (Day 1-14) Vancomycin: 500mg oral suspension 4 times daily (Day 1-14) Neomycin: neomycin 1000 mg orally three times daily (Days 1-3) Ciprofloxacin: ciprofloxacin 750 mg orally twice daily (Day 4-14) Polyethylene Glycol 3350: 238 g dissolved in 64 ounces of Gatorade or Crystal Lite on day 2 Promethazine: PRN (as needed) Promethazine 12.5mg up to every four hours (Days 1-3).
4
Placebo
Vancomycin 500 mg oral suspension four times daily (Day 1-14), plus neomycin 1000 mg orally three times daily (Days 1-3), plus ciprofloxacin 750 mg orally twice daily (Day 4-14), plus Polyethylene Glycol 3350 (Miralax) 238 g dissolved in 64 ounces of Gatorade or Crystal Lite on day 2, plus placebo for fluconazole. PRN (as needed) Promethazine 12.5mg up to every four hours (Days 1-3). Vancomycin: 500mg oral suspension 4 times daily (Day 1-14) Neomycin: neomycin 1000 mg orally three times daily (Days 1-3) Ciprofloxacin: ciprofloxacin 750 mg orally twice daily (Day 4-14) Polyethylene Glycol 3350: 238 g dissolved in 64 ounces of Gatorade or Crystal Lite on day 2 Promethazine: PRN (as needed) Promethazine 12.5mg up to every four hours (Days 1-3). Fluconazole placebo: Once daily
4
Total8

Baseline characteristics

CharacteristicPlaceboTotalFluconazole
Age, Continuous32.5 years39.5 years44 years
Race and Ethnicity Not Collected0 Participants
Region of Enrollment
United States
4 participants8 participants4 participants
Sex: Female, Male
Female
0 Participants1 Participants1 Participants
Sex: Female, Male
Male
4 Participants7 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 40 / 4
other
Total, other adverse events
4 / 43 / 4
serious
Total, serious adverse events
0 / 40 / 4

Outcome results

Primary

Change in Disease Activity by Fecal Calprotectin (FCP)

The second primary outcome measure will be the change in disease activity, as measured by fecal calprotectin, between the enrollment visit and day 15. The fecal calprotectin is a stool test which measures intestinal inflammation.

Time frame: enrollment visit (baseline) and 15 days

ArmMeasureValue (MEDIAN)
FluconazoleChange in Disease Activity by Fecal Calprotectin (FCP)-16.5 mcg/g
PlaceboChange in Disease Activity by Fecal Calprotectin (FCP)-380.5 mcg/g
Primary

Change in Disease Activity by Harvey Bradshaw Index

The primary endpoint will be the change in disease activity, as measured by Harvey-Bradshaw Index (HBI) score, between the enrollment visit and Day 15. All participants who withdraw for any reason prior to day 15 will be considered treatment failures. The HBI is a clinical score where points are given for each category below plus number of liquid bowel movements in previous day. A score of 3 or lower is considered remission. A score of 8 or higher is considered severe disease. General Well Being Very well 0 points Slightly below par 1 point Poor 2 points Very poor 3 points Terrible 4 points Abdominal Pain None 0 points Mild 1 point Moderate 2 points Severe 3 points Abdominal Mass None 0 points Dubious 1 point Definite 2 points Definite and tender 3 points Complications None 0 points Arthralgias +1 point Uveitis +1 point Erythema Nodosum + 1 point Aphthous ulcers +1 point Pyoderma Gangrenosum + 1 point Anal fissure + 1 point New fistula + 1

Time frame: enrollment visit (baseline) and 15 days

ArmMeasureValue (MEDIAN)
FluconazoleChange in Disease Activity by Harvey Bradshaw Index-5 score on a scale
PlaceboChange in Disease Activity by Harvey Bradshaw Index-3 score on a scale
Secondary

Safety and Tolerability of the Treatment Regimen Based on Medication Side Effects and/or Adverse Events (AEs).

Number of Medication Side Effects and/or Adverse Events (AEs)

Time frame: 105 days

ArmMeasureValue (NUMBER)
FluconazoleSafety and Tolerability of the Treatment Regimen Based on Medication Side Effects and/or Adverse Events (AEs).31 Events
PlaceboSafety and Tolerability of the Treatment Regimen Based on Medication Side Effects and/or Adverse Events (AEs).12 Events
Secondary

The Change in High-sensitivity C-reactive Protein (hsCRP)

A secondary outcome measure will be the change in high-sensitivity C-reactive protein between the enrollment visit and day 15. The high-sensitivity C-reactive protein is a blood test which measures systemic inflammation.

Time frame: enrollment visit (baseline) and 15 days

ArmMeasureValue (MEDIAN)
FluconazoleThe Change in High-sensitivity C-reactive Protein (hsCRP)4.1 mg/dL
PlaceboThe Change in High-sensitivity C-reactive Protein (hsCRP)-2 mg/dL

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