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Defining Predictors of RT Response to Vedolizumab in IBD

Defining Predictors of Radiological Transmural Response to Vedolizumab in Small Bowel Crohn's Disease Through Serum Proteomic Biomarkers

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03142321
Enrollment
48
Registered
2017-05-05
Start date
2018-06-08
Completion date
2024-10-28
Last updated
2025-09-17

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

Conditions

Crohn Disease of Small Intestine

Brief summary

The overall goal of the study is to develop data that can convincingly guide clinicians on the use and efficacy of vedolizumab in patients with small bowel CD. There is an unmet need to identify response to vedolizumab in small bowel CD using objective endpoints. Current data suggest that MR enterography may meet this unmet need. There is an additional unmet need to develop predictive models incorporating both clinical and baseline radiological and endoscopic variables with higher discriminatory performance in identifying longer term clinical remission with vedolizumab. Finally, this proposal is strengthened by the exploratory studies which may identify new proteomic biomarkers that correlate with longer term radiological response with vedolizumab reflecting its latency of response. If successful, these serum biomarkers may guide a personalized approach to the treatment of small bowel CD with vedolizumab, allowing early identification of PNR, monitoring disease activity and the pharmacodynamics of vedolizumab.

Interventions

Sponsors

Washington University School of Medicine
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Moderate to severe disease activity small bowel CD (small bowel only or ileocecal only) visible on MRE * Initiated on Vedolizumab with/without thiopurines or methotrexate * ≥18 years old

Exclusion criteria

* Pregnancy * Age \<18 * Planned surgery prior to the first follow-up MRE * Inability to provide informed consent. * Perianal CD will be excluded since assessment requires performance of additional MRI of the pelvis. * Individuals with colonic involvement other than involvement of the ascending colon and cecum. * Inpatient scans will only be included if this is a MRE and adequate small bowel distension with appropriate contrast has been achieved * If unable to provide informed consent * Contraindications for MRE including chronic kidney disease that precludes contrast administration, implanted medical devices that are contraindicated for MRE.

Design outcomes

Primary

MeasureTime frameDescription
Radiological Response24±2 weeksRadiological Transmural Response will be defined per-lesion and per-patient. Per-lesion TR will be defined as a decrease in the length of inflamed small bowel lesion from baseline or improvement in any imaging findings associated with severe mural inflammation, i.e., restricted diffusion, mural thickness, intramural T2 hyperintensity, peri-enteric T2 signal, and luminal ulcerations, without development of a new penetrating or stricturing complication. Worsened lesions will be fined as those with an increased score of any imaging parameter associated with severe mural inflammation. Unchanged lesions will be defined as those with unchanged (without worsening or improving) inflammatory parameters associated with severe mural inflammation. Patients will be then classified for TR as responders if all individual lesions improved and non-responders if any of the lesions worsened, a new lesion developed at the 4 month MRE and all other scenarios not meeting definition of response.

Countries

United States

Participant flow

Participants by arm

ArmCount
Vedolizumab 300 MG Injection [Entyvio]
Vedolizumab will be initiated at 300 mg intravenous (IV) dosing at 0, 2 and 6 weeks followed by the 1st maintenance with 300 mg IV at week 14. Patients who have not achieved clinical response at week 14 will be eligible to undergo dose escalation to 4 weekly dosing of vedolizumab depending on the judgement of the treating gastroenterologist. Vedolizumab 300 MG Injection \[Entyvio\]: Vedolizumab Injection
48
Total48

Baseline characteristics

CharacteristicVedolizumab 300 MG Injection [Entyvio]
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
48 Participants
Age, Continuous33.95 years
Baseline Crohn's Disease Activity Index Score143.00 units on a scale
Baseline EQ-5D Base_Anxiety
1 - Not anxious or depressed
22 Participants
Baseline EQ-5D Base_Anxiety
2 - Slightly anxious or depressed
6 Participants
Baseline EQ-5D Base_Anxiety
3 - Moderately anxious or depressed
6 Participants
Baseline EQ-5D Base_Anxiety
4 - Severely anxious or depressed
7 Participants
Baseline EQ-5D Base_Anxiety
5 - Extremely anxious or depressed
0 Participants
Baseline EQ-5D Base_Anxiety
NA
7 Participants
Baseline EQ-5D Base_Mobility
1 - No problem walking
36 Participants
Baseline EQ-5D Base_Mobility
2 - Slight problems walking
2 Participants
Baseline EQ-5D Base_Mobility
3 - Moderate problems walking
3 Participants
Baseline EQ-5D Base_Mobility
4 - Severe problems walking
0 Participants
Baseline EQ-5D Base_Mobility
5 - Unable to walk
0 Participants
Baseline EQ-5D Base_Mobility
NA
7 Participants
Baseline EQ-5D Base_Pain Discomfort
1 - No pain or discomfort
15 Participants
Baseline EQ-5D Base_Pain Discomfort
2 - Slight pain or discomfort
8 Participants
Baseline EQ-5D Base_Pain Discomfort
3 - Moderate pain or discomfort
10 Participants
Baseline EQ-5D Base_Pain Discomfort
4 - Severe pain or discomfort
6 Participants
Baseline EQ-5D Base_Pain Discomfort
5 - Extreme pain or discomfort
2 Participants
Baseline EQ-5D Base_Pain Discomfort
NA
7 Participants
Baseline EQ-5D Base_Self-Care
1 - No problems washing or dressing
37 Participants
Baseline EQ-5D Base_Self-Care
2 - Slight problems washing or dressing
3 Participants
Baseline EQ-5D Base_Self-Care
3 - Moderate problems washing or dressing
1 Participants
Baseline EQ-5D Base_Self-Care
4 - Severe problems washing or dressing
0 Participants
Baseline EQ-5D Base_Self-Care
5 - Unable to wash or dress
0 Participants
Baseline EQ-5D Base_Self-Care
NA
7 Participants
Baselin eEQ-5D Base_Usual Activities
1 - No problems doing usual activities
26 Participants
Baselin eEQ-5D Base_Usual Activities
2 - Slight problems doing usual activities
7 Participants
Baselin eEQ-5D Base_Usual Activities
3 - Moderate problems doing usual activities
7 Participants
Baselin eEQ-5D Base_Usual Activities
4 - Severe problems doing usual activities
1 Participants
Baselin eEQ-5D Base_Usual Activities
5 - Unable to do usual activities
0 Participants
Baselin eEQ-5D Base_Usual Activities
NA
7 Participants
Baseline EQ-5D Base_Your Health Today, 0-10080 units on a scale of 0-100
Baseline Harvey Bradshaw Index Score5 units on a scale
BMI28.10 kg/m^2
Montreal Age Classification
1 - Age of diagnosis at 16 years or younger
6 Participants
Montreal Age Classification
2 - Age of diagnosis at 17-40 years
32 Participants
Montreal Age Classification
3 - Age of diagnosis at >40 years
10 Participants
Montreal Behavior
B1 non-stricturing, non-penetrating
22 Participants
Montreal Behavior
B1p non-stricturing, non-penetrating with perianal disease
3 Participants
Montreal Behavior
B2p stricturing with perianal disease
1 Participants
Montreal Behavior
B2 stricturing
8 Participants
Montreal Behavior
B3 penetrating
7 Participants
Montreal Behavior
B3p penetrating with perianal disease
7 Participants
Montreal Location
L1 - terminal ileum
8 participants
Montreal Location
L3 - ileocolonic
40 participants
Perianal Involvement
No
37 Participants
Perianal Involvement
Perianal Involvement
11 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
7 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
38 Participants
Region of Enrollment
United States
48 participants
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
22 Participants
Upper GI Involvement
No
37 Participants
Upper GI Involvement
Yes
11 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 460 / 2
other
Total, other adverse events
0 / 460 / 2
serious
Total, serious adverse events
0 / 460 / 2

Outcome results

Primary

Radiological Response

Radiological Transmural Response will be defined per-lesion and per-patient. Per-lesion TR will be defined as a decrease in the length of inflamed small bowel lesion from baseline or improvement in any imaging findings associated with severe mural inflammation, i.e., restricted diffusion, mural thickness, intramural T2 hyperintensity, peri-enteric T2 signal, and luminal ulcerations, without development of a new penetrating or stricturing complication. Worsened lesions will be fined as those with an increased score of any imaging parameter associated with severe mural inflammation. Unchanged lesions will be defined as those with unchanged (without worsening or improving) inflammatory parameters associated with severe mural inflammation. Patients will be then classified for TR as responders if all individual lesions improved and non-responders if any of the lesions worsened, a new lesion developed at the 4 month MRE and all other scenarios not meeting definition of response.

Time frame: 24±2 weeks

ArmMeasureGroupValue (NUMBER)
Vedolizumab 300 MG Injection [Entyvio]Radiological ResponseTransmural Ulcer Healing21 participants
Vedolizumab 300 MG Injection [Entyvio]Radiological ResponseTransmural Remission16 participants
Primary

Radiological Response

Radiological Transmural Response will be defined per-lesion and per-patient. Per-lesion TR will be defined as a decrease in the length of inflamed small bowel lesion from baseline or improvement in any imaging findings associated with severe mural inflammation, i.e., restricted diffusion, mural thickness, intramural T2 hyperintensity, peri-enteric T2 signal, and luminal ulcerations, without development of a new penetrating or stricturing complication. Worsened lesions will be fined as those with an increased score of any imaging parameter associated with severe mural inflammation. Unchanged lesions will be defined as those with unchanged (without worsening or improving) inflammatory parameters associated with severe mural inflammation. Patients will be then classified for TR as responders if all individual lesions improved and non-responders if any of the lesions worsened, a new lesion developed at the 4 month MRE and all other scenarios not meeting definition of response.

Time frame: 52±2 weeks

ArmMeasureGroupValue (NUMBER)
Vedolizumab 300 MG Injection [Entyvio]Radiological ResponseTransmural Ulcer Healing12 participants
Vedolizumab 300 MG Injection [Entyvio]Radiological ResponseTransmural Remission9 participants

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