Trial Outcomes & Findings for Oral OKT3 for the Treatment of Active Ulcerative Colitis (NCT NCT01287195)

NCT ID: NCT01287195

Last Updated: 2019-02-11

Results Overview

An adverse event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

6 participants

Primary outcome timeframe

From baseline to Week 10

Results posted on

2019-02-11

Participant Flow

Participant milestones

Participant milestones
Measure
Oral OKT3
Participants with ulcerative colitis received 1 milligram (mg) Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Overall Study
STARTED
6
Overall Study
COMPLETED
4
Overall Study
NOT COMPLETED
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Oral OKT3
Participants with ulcerative colitis received 1 milligram (mg) Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Overall Study
Withdrawal by Subject
2

Baseline Characteristics

Oral OKT3 for the Treatment of Active Ulcerative Colitis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Age, Continuous
39.5 years
STANDARD_DEVIATION 13.5 • n=5 Participants
Sex: Female, Male
Female
1 Participants
n=5 Participants
Sex: Female, Male
Male
5 Participants
n=5 Participants

PRIMARY outcome

Timeframe: From baseline to Week 10

Population: All participants enrolled in the study.

An adverse event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Number of Participants With Adverse Events
3 Participants

PRIMARY outcome

Timeframe: From baseline to Week 10

Population: All participants enrolled in the study.

Serum samples were obtained to measure anti-drug antibodies during the study.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Number of Participants With Anti-Drug Antibodies
0 Participants

PRIMARY outcome

Timeframe: Baseline, Week 5

Population: All participants enrolled in the study for whom data were available at both time points.

Peripheral blood mononuclear cells were (PBMCs) were isolated from blood samples taken from each participant at baseline and Week 5. PBMCs were stained with a panel of fluorochrome-conjugated antibodies against multiple surface and intracellular biomarkers, including Cluster of Differentiation (CD) 3, CD4, CD8, Forkhead box P3 protein (FOXP3) and latency-associated peptide (LAP). The percentage of T cells positive for each of these biomarkers was determined by fluorescence activated cell sorting (FACS) and the mean percentage of positive T cells for each biomarker for all analyzed participants is reported.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Percentage of Biomarker-positive Immune Cells
CD3, Baseline
38 percentage of biomarker-positive T cells
Standard Deviation 19
Percentage of Biomarker-positive Immune Cells
CD3, Week 5
30 percentage of biomarker-positive T cells
Standard Deviation 22
Percentage of Biomarker-positive Immune Cells
CD4, Baseline
59 percentage of biomarker-positive T cells
Standard Deviation 30
Percentage of Biomarker-positive Immune Cells
CD4, Week 5
75 percentage of biomarker-positive T cells
Standard Deviation 11
Percentage of Biomarker-positive Immune Cells
CD8, Baseline
31 percentage of biomarker-positive T cells
Standard Deviation 16
Percentage of Biomarker-positive Immune Cells
CD8, Week 5
24 percentage of biomarker-positive T cells
Standard Deviation 11
Percentage of Biomarker-positive Immune Cells
FOXP3, Baseline
5 percentage of biomarker-positive T cells
Standard Deviation 2.5
Percentage of Biomarker-positive Immune Cells
FOXP3, Week 5
4 percentage of biomarker-positive T cells
Standard Deviation 2
Percentage of Biomarker-positive Immune Cells
LAP, Baseline
0.9 percentage of biomarker-positive T cells
Standard Deviation 0.5
Percentage of Biomarker-positive Immune Cells
LAP, Week 5
0.5 percentage of biomarker-positive T cells
Standard Deviation 0.4

PRIMARY outcome

Timeframe: Baseline, Weeks 1, 3 and 5

Population: All participants enrolled in the study for whom data were available at each time point.

PBMCs isolated from whole blood obtained from participants at baseline, Weeks 1, 3, and 5 were assessed for proliferation in cell culture using a radioactive thymidine incorporation assay. A higher number indicates a higher level of proliferation.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
T Cell Proliferation of PBMCs in Cell Culture
Baseline
27470 radioactive counts of cells per minute
Standard Error 12340
T Cell Proliferation of PBMCs in Cell Culture
Week 1
49617 radioactive counts of cells per minute
Standard Error 17168
T Cell Proliferation of PBMCs in Cell Culture
Week 3
46575 radioactive counts of cells per minute
Standard Error 26762
T Cell Proliferation of PBMCs in Cell Culture
Week 5
20993 radioactive counts of cells per minute
Standard Error 15805

PRIMARY outcome

Timeframe: Baseline, Weeks 1, 3 and 5

Population: All participants enrolled in the study for whom data were available at each time point.

Cytokine production was assessed in cell cultures of PBMCs obtained from participants at baseline, Weeks 1, 3 and 5. The following cytokines were detected and are reported here: interferon gamma (IFN-gamma), interleukin (IL)-17A, IL-6, IL-1 beta, tumor necrosis factor (TNF) and IL-10.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Cytokine Production by PBMCs in Cell Culture
IFN gamma, Baseline
4935 picograms/milliliter (pg/mL)
Standard Deviation 5520
Cytokine Production by PBMCs in Cell Culture
IFN gamma, Week 1
11521 picograms/milliliter (pg/mL)
Standard Deviation 6659
Cytokine Production by PBMCs in Cell Culture
IFN gamma, Week 3
10178 picograms/milliliter (pg/mL)
Standard Deviation 11671
Cytokine Production by PBMCs in Cell Culture
IFN gamma, Week 5
2832 picograms/milliliter (pg/mL)
Standard Deviation 2569
Cytokine Production by PBMCs in Cell Culture
IL-17A, Baseline
69 picograms/milliliter (pg/mL)
Standard Deviation 93
Cytokine Production by PBMCs in Cell Culture
IL-17A, Week 1
114 picograms/milliliter (pg/mL)
Standard Deviation 117
Cytokine Production by PBMCs in Cell Culture
IL-17A, Week 3
181 picograms/milliliter (pg/mL)
Standard Deviation 368
Cytokine Production by PBMCs in Cell Culture
IL-17A, Week 5
74 picograms/milliliter (pg/mL)
Standard Deviation 95
Cytokine Production by PBMCs in Cell Culture
IL-6, Baseline
1470 picograms/milliliter (pg/mL)
Standard Deviation 21010
Cytokine Production by PBMCs in Cell Culture
IL-6, Week 1
2678 picograms/milliliter (pg/mL)
Standard Deviation 3270
Cytokine Production by PBMCs in Cell Culture
IL-6, Week 3
1978 picograms/milliliter (pg/mL)
Standard Deviation 3491
Cytokine Production by PBMCs in Cell Culture
IL-6, Week 5
567 picograms/milliliter (pg/mL)
Standard Deviation 57980
Cytokine Production by PBMCs in Cell Culture
IL-1 beta, Baseline
110 picograms/milliliter (pg/mL)
Standard Deviation 133
Cytokine Production by PBMCs in Cell Culture
IL-1 beta, Week 1
155 picograms/milliliter (pg/mL)
Standard Deviation 197
Cytokine Production by PBMCs in Cell Culture
IL-1 beta, Week 3
185 picograms/milliliter (pg/mL)
Standard Deviation 209
Cytokine Production by PBMCs in Cell Culture
IL-1 beta, Week 5
38 picograms/milliliter (pg/mL)
Standard Deviation 30
Cytokine Production by PBMCs in Cell Culture
TNF, Baseline
361 picograms/milliliter (pg/mL)
Standard Deviation 282
Cytokine Production by PBMCs in Cell Culture
TNF, Week 1
585 picograms/milliliter (pg/mL)
Standard Deviation 324
Cytokine Production by PBMCs in Cell Culture
TNF, Week 3
715 picograms/milliliter (pg/mL)
Standard Deviation 724
Cytokine Production by PBMCs in Cell Culture
TNF, Week 5
195 picograms/milliliter (pg/mL)
Standard Deviation 157
Cytokine Production by PBMCs in Cell Culture
IL-10, Baseline
63 picograms/milliliter (pg/mL)
Standard Deviation 79
Cytokine Production by PBMCs in Cell Culture
IL-10, Week 1
115 picograms/milliliter (pg/mL)
Standard Deviation 124
Cytokine Production by PBMCs in Cell Culture
IL-10, Week 3
120 picograms/milliliter (pg/mL)
Standard Deviation 97
Cytokine Production by PBMCs in Cell Culture
IL-10, Week 5
15 picograms/milliliter (pg/mL)
Standard Deviation 17

SECONDARY outcome

Timeframe: Baseline, Week 5

Population: All participants enrolled in the study for whom data were available at each time point.

The Mayo Score is determined by the investigator by assigning a score to the following four assessments: stool frequency, rectal bleeding, physician's global assessment and endoscopy. Total range for Mayo score is 0-12 with a higher score indicating a worse outcome.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Mayo Score
Baseline
8.8 score on a scale
Standard Error 1.6
Mayo Score
Week 5
7.5 score on a scale
Standard Error 1.7

SECONDARY outcome

Timeframe: Baseline, Week 5

Population: All participants enrolled in the study for whom data were available at each time point.

SCCAI is a symptom based questionnaire addressing five assessments, including bowel frequency day, bowel frequency night, urgency of defecation, blood in stool and general well-being. Score ranges from 0-15 with one additional point added for each manifestation of extracolonic features. A higher score indicates a worse outcome.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Simple Clinical Colitis Activity Index (SCCAI) Score
Baseline
7.7 score on a scale
Standard Error 1.6
Simple Clinical Colitis Activity Index (SCCAI) Score
Week 5
6 score on a scale
Standard Error 2.5

SECONDARY outcome

Timeframe: Baseline, Week 5

Population: All participants enrolled in the study for whom data were available at each time point.

Mucosal biopsies were obtained from the most inflamed area seen during flexible sigmoidoscopy and blindly scored by a single pathologist with scores ranging 0-3 with a higher score indicating a worse outcome.

Outcome measures

Outcome measures
Measure
Oral OKT3
n=6 Participants
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Score in Histologic Evaluation of Flexible Sigmoidoscopy
Baseline
2.2 score on a scale
Standard Error 0.7
Score in Histologic Evaluation of Flexible Sigmoidoscopy
Week 5
1.75 score on a scale
Standard Error 0.9

Adverse Events

Oral OKT3

Serious events: 2 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Oral OKT3
n=6 participants at risk
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Gastrointestinal disorders
Ulcerative colitis
16.7%
1/6 • From baseline up to Week 10
The safety population included all participants who received at least one dose of study medication.
Infections and infestations
Anorectal abscess
16.7%
1/6 • From baseline up to Week 10
The safety population included all participants who received at least one dose of study medication.

Other adverse events

Other adverse events
Measure
Oral OKT3
n=6 participants at risk
Participants with ulcerative colitis received 1 mg Oral OKT3 given with 20 mg oral Omeprazole once daily for 30 days.
Eye disorders
Periorbital edema
16.7%
1/6 • From baseline up to Week 10
The safety population included all participants who received at least one dose of study medication.

Additional Information

Scott B. Snapper, M.D., Ph.D.

Brigham and Women's Hospital

Phone: 617-919-4973

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place