The purpose of this study is to evaluate safety and tolerability of JNJ 66525433 compared with placebo after administration of: 1) single ascending oral doses of JNJ 66525433 administered to healthy participants (Part 1), 2) multiple, ascending oral doses of JNJ 66525433, administered to healthy participants once daily over 14 consecutive days (Part 2), and 3) multiple oral doses of JNJ 66525433, administered once daily over 14 consecutive and once daily over 42 consecutive days in participants with ulcerative colitis (UC) (Part 3).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
82
Participants will receive JNJ-66525433 oral capsules.
Participants will receive matching placebo oral capsules.
Charite Research Organisation GmbH
Berlin, Germany
Part 1, 2 and 3: Number of Participants with Treatment-emergent Adverse Events (TEAEs) as a Measure of Safety and Tolerability
An adverse event (AE) is any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product. Any AE occurring at or after the initial administration of study intervention through the day of last dose plus 30 days will be considered as TEAE.
Time frame: Up to 224 Days
Part 1, 2 and 3: Number of Participants with Vital Sign Abnormalities
Number of participants with vital sign abnormalities (temperature), pulse/heart rate, respiratory rate and blood pressure) will be reported.
Time frame: Up to 224 Days
Part 1, 2 and 3: Number of Participants with Physical Examination Abnormalities
Number of participants with physical examination abnormalities will be reported.
Time frame: Up to 224 Days
Part 1, 2 and 3: Number of Participants with Hematology Laboratory Abnormalities
Number of participants with hematology laboratory abnormalities will be reported.
Time frame: Up to 224 Days
Part 1, 2 and 3: Number of Participants with Chemistry Laboratory Abnormalities
Number of participants with chemistry laboratory abnormalities will be reported.
Time frame: Up to 224 Days
Part 1, 2 and 3: Number of Participants with Urinalysis Laboratory Abnormalities
Number of participants with abnormalities in urinalysis will be reported.
Time frame: Up to 224 Days
Part 2 and 3: Number of Participants with Abnormalities in High Sensitivity C- Reactive Protein (hs-CRP)
Number of participants with abnormalities in hs-CRP will be reported using a validated, high sensitivity CRP assay.
Time frame: Up to 224 Days
Part 2 and 3: Number of Participants with Abnormalities in Fecal Calprotectin
Assays for fecal calprotectin will be performed using a validated method.
Time frame: Up to 224 Days
Part 2 and 3: Incidence of Enteric Pathogens in Stool Samples
Stool culture and Clostridium difficile toxin assay will be used for enteric pathogen assessment.
Time frame: Up to 224 Days
Part 1, 2 and 3: Number of Participants with Electrocardiogram (ECG) Abnormalities
Number of participants with ECG abnormalities will be reported.
Time frame: Up to 224 Days
Part 1, 2 and 3: Plasma Concentrations of JNJ-66525433
Plasma concentrations of JNJ-66525433 will be reported.
Time frame: Up to 224 Days
Part 1: Plasma Concentrations of JNJ-66525433 After Fasted or Fed Dosing
Plasma concentrations of JNJ-66525433 after fasted or fed dosing will be reported.
Time frame: Up to Day 14
Part 3: Mayo Score
Mayo scoring system is used for assessment of ulcerative colitis activity. The Mayo score consists of 4 subscores (stool frequency, rectal bleeding, physician's global assessment, and endoscopy findings) each ranges from 0 to 3. The Mayo score is calculated as the sum of these 4 subscores and can range between 0 and 12, where higher score indicates severe disease.
Time frame: Up to Day 84
Part 3: Partial Mayo Score
Partial Mayo score is calculated as the sum of 3 subscores (stool frequency, rectal bleeding, and physician's global assessment) and ranges from 0 to 9 points. Higher score indicates severe disease.
Time frame: Up to Day 70
Part 3: Endoscopic Subscore
Endoscopy sub-score ranges from 0 to 3 where; 0 = normal or inactive disease; 1 = mild disease (erythema, decreased vascular pattern, mild friability); 2 = moderate disease (marked erythema, absent vascular pattern, friability, erosions); 3 = severe disease (spontaneous bleeding, ulceration).
Time frame: Up to Day 84
Part 3: Inflammatory Bowel Disease Questionnaire (IBDQ) Total Score
IBDQ18 is a validated, 32-item, self-reported questionnaire for participants with inflammatory bowel disease (IBD) that will be used to evaluate the disease-specific health-related quality of life across 4 dimensional scores: bowel symptoms (loose stools, abdominal pain), systemic functions (fatigue, altered sleep pattern), social function (work attendance, need to cancel social events), and emotional function (anger, depression, irritability). Scores range from 32 to 224, with higher scores indicating better outcomes.
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Time frame: Days 1, 7, 14, 28, 43, 70 and 84
Part 2 and 3: Target Engagement of Messenger Ribonucleic Acid (mRNA) Levels
Levels of mRNA knockdown will be reported to assess target engagement in biopsy tissue by dose level over time.
Time frame: Up to 182 Days
Part 2 and 3: Tissue Biopsy JNJ-66525433 Concentrations
Tissue biopsy concentrations of JNJ-66525433 will be reported.
Time frame: Up to 182 Days
Plasma Concentrations of JNJ-66525433 After Two Meal Timing Conditions
Plasma concentrations of JNJ-66525433 after two meal timing condition (fed state to modified fasted state) will be reported (if conducted).
Time frame: Up to 22 Days
Faecal Concentrations of JNJ-66525433 After Two Meal Timing Conditions
Stool assessment will be done to characterize the presence of JNJ-66525433 after two meal timing conditions (fed state to modified fasted state) will be reported (if conducted).
Time frame: Predose, up to 120 hours postdose