A Phase 2 Safety and Efficacy Study of PRA023 in Subjects With Moderately to Severely Active Ulcerative Colitis (ARTEMIS-UC)
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ClinicalTrials.gov Identifier: NCT04996797 |
Recruitment Status :
Active, not recruiting
First Posted : August 9, 2021
Last Update Posted : January 16, 2024
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The purpose of this study is to assess the safety and efficacy of PRA023 in participants with moderately to severely active Ulcerative Colitis.
The purpose of Cohort 2 of the study is to assess the safety and efficacy of PRA023 in participants with moderately to severely active ulcerative colitis who are companion diagnostic positive.
After the completion of the 12-week induction, all participants have the option to continue in the open-label extension for another 38 weeks.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Ulcerative Colitis | Drug: PRA023 IV Device: Companion Diagnostic (CDx) Testing Other: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 178 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Phase 2, Multi-Center, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of Induction Therapy With PRA023 in Subjects With Moderately to Severely Active Ulcerative Colitis |
Actual Study Start Date : | July 28, 2021 |
Actual Primary Completion Date : | June 6, 2023 |
Estimated Study Completion Date : | June 30, 2026 |
Arm | Intervention/treatment |
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Experimental: Cohort 1 PRA023
Participants randomized to receive PRA023 administered by intravenous (IV) infusion.
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Drug: PRA023 IV
PRA023 administered by IV infusion |
Placebo Comparator: Cohort 1 Placebo
Participant randomized to receive placebo administered by intravenous (IV) infusion.
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Other: Placebo
Placebo administered by IV infusion |
Experimental: CDx+ Expansion Cohort PRA023
Participants randomized to receive PRA023 administered by intravenous (IV) infusion.
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Drug: PRA023 IV
PRA023 administered by IV infusion Device: Companion Diagnostic (CDx) Testing PRA023 CDx Genotyping Assay |
Placebo Comparator: CDx+ Expansion Cohort Placebo
Participant randomized to receive placebo administered by intravenous (IV) infusion.
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Device: Companion Diagnostic (CDx) Testing
PRA023 CDx Genotyping Assay Other: Placebo Placebo administered by IV infusion |
- Induction of clinical remission [ Time Frame: Week 12 ]Proportion of participants achieving induction of clinical remission
- Safety and tolerability [ Time Frame: Week 12 ]Incidence of AE, SAE, AE leading to discontinuation
- Induction of endoscopic improvement [ Time Frame: Week 12 ]Proportion of participants achieving induction of endoscopic improvement
- Induction of clinical response [ Time Frame: Week 12 ]Proportion of participants achieving induction of clinical response
- Induction of clinical remission in CDx+ participants [ Time Frame: Week 12 ]Proportion of CDx+ participants achieving induction of clinical remission
- Induction of histologic remission [ Time Frame: Week 12 ]Proportion of participants achieving induction of histologic remission
- Induction of histologic-endoscopic mucosal improvement [ Time Frame: Week 12 ]Proportion of participants achieving induction of histologic- endoscopic mucosal improvement
- Induction of endoscopic improvement in CDx+ participants [ Time Frame: Week 12 ]Proportion of CDx+ participants achieving induction of endoscopic improvement
- Induction of clinical response in CDx+ participants [ Time Frame: Week 12 ]Proportion of CDx+ participants achieving induction of clinical response
- Induction of histologic remission in CDx+ participants [ Time Frame: Week 12 ]Proportion of CDx+ participants achieving induction of histologic remission
- Induction of histologic-endoscopic mucosal improvement in CDx+ participants [ Time Frame: Week 12 ]Proportion of CDx+ participants achieving induction of histologic-endoscopic mucosal
- Clinical remission in CDx+ vs. CDx- participants [ Time Frame: Week 12 ]Proportion of of CDx+ vs. CDx- participants achieving clinical remission
- Induction of mucosal healing [ Time Frame: Week 12 ]Proportion of participants achieving induction of mucosal healing
- Induction of mucosal healing in CDx+ participants [ Time Frame: Week 12 ]Proportion of CDx+ participants achieving induction of mucosal healing
- Change in IBDQ [ Time Frame: Week 12 ]Change from Baseline in IBDQ through Week 12
- Change in IBDQ in CDx+ participants [ Time Frame: Week 12 ]Change from Baseline in IBDQ through Week 12 in CDx+ participants
- Induction of Clinical remission in CDx+ participants per alternative algorithm [ Time Frame: Week 12 ]Proportion of CDx+ participants per alternative algorithm achieving induction of Clinical remission.
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Confirmed diagnosis of ulcerative colitis (UC)
- Moderately to severely active UC as defined by 3-component Modified Mayo score
- Must have corticosteroid dependence or have had no response, insufficient response, loss of response, and/or intolerance to at least one of the following therapies: corticosteroid, immunosuppressants, or an approved anti-TNF, anti-integrin, anti-IL12/23, JAK inhibitor, S1PR modulator.
- Able to provide written informed consent and understand and comply with the requirements of the study.
Exclusion Criteria:
- WOCBP and men with female partners of childbearing potential who are unwilling or unable to use two highly effective methods of contraception to avoid pregnancy for the entire study period and for up to 12 weeks after the last dose of study drug
- Diagnosis of Crohn's disease or indeterminate colitis
- Current evidence of fulminant colitis, toxic megacolon, bowel perforation, total proctocoloectomy or partial colectomy
- Current or impending need for colostomy or ileostomy
- Surgical bowel resection within 3 months before screening
- Past or current evidence of definite low-grade or high-grade colonic dysplasia not completely removed
- Subjects in the opinion of the investigator are at an unacceptable risk for participation in the study
- Subjects who meet the protocol criteria for important laboratory exclusion criteria
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04996797
Study Director: | Prometheus Biosciences | Clinicaltrials Call center |
Responsible Party: | Prometheus Biosciences, Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) |
ClinicalTrials.gov Identifier: | NCT04996797 |
Other Study ID Numbers: |
PR200-102 2021-000091-11 ( EudraCT Number ) |
First Posted: | August 9, 2021 Key Record Dates |
Last Update Posted: | January 16, 2024 |
Last Verified: | January 2024 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf |
URL: | http://engagezone.msd.com/ds_documentation.php |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | Yes |
Device Product Not Approved or Cleared by U.S. FDA: | Yes |
ARTEMIS-UC ARTEMIS Ulcerative Colitis |
Colitis Colitis, Ulcerative Ulcer Gastroenteritis Gastrointestinal Diseases |
Digestive System Diseases Colonic Diseases Intestinal Diseases Pathologic Processes Inflammatory Bowel Diseases |