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A Study of Mirikizumab (LY3074828) in Pediatric Participants With Crohn's Disease

A Phase 3, Multicenter, Randomized Clinical Study to Evaluate Mirikizumab in Pediatric Crohn's Disease

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05509777
Acronym
AMAY
Enrollment
90
Registered
2022-08-22
Start date
2024-03-13
Completion date
2028-04-01
Last updated
2026-08-24

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

Conditions

Crohn's Disease

Keywords

Inflammatory Bowel Disease

Brief summary

Study participants will be screened during the platform study and randomly assigned to receive mirikizumab or another intervention. The purpose of the mirikizumab study is to evaluate efficacy, safety, tolerability, and how well mirikizumab absorbs into the body of pediatric participants with Crohn's disease. Study periods for the intervention-specific appendix (ISA) will be as follows: * A 12-week induction period * A maintenance period from Week 12 to Week 52, and * A safety follow-up period up to 16 weeks. The study will last about 74 weeks and may include up to 19 visits.

Detailed description

Participants screened in the MACARONI-23 Platform study could be randomized to mirikizumab to participate in this intervention specific arm of the study.

Interventions

DRUGMirikizumab

Administered IV or SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
2 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* Participants must have a diagnosis of CD or fistulizing CD, with active colitis, ileitis, or ileocolitis, confirmed at any time in the past by clinical, endoscopic, and histologic criteria. * Participants have moderately to severely active CD (as defined by a baseline PCDAI score ≥30). * Participants must have endoscopy with evidence of active CD defined as SES-CD score ≥6 (or ≥4 for participants with isolated ileal disease) within 1 month of receiving study intervention at Week 0. * Participants must have a documented history of inadequate response, loss of response or intolerance to at least one medication used to treat CD, which may include immunomodulators, oral or IV corticosteroids, a biologic therapy or a JAK inhibitor.

Exclusion criteria

* Participants must not have complications of CD such as symptomatic strictures or stenosis, short gut syndrome, or any other manifestations that might be anticipated to require surgery. * Participants must not have an abscess. * Participants must not have any kind of bowel resection within 26 weeks or any other intra-abdominal surgery within 12 weeks of baseline.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants with Clinical Response by Pediatric Crohn's Disease Activity Index (PCDAI) at Week 12 and Endoscopic Response by Simple Endoscopic Score for CD (SES-CD) at Week 52Baseline to Week 52Clinical response based on PCDAI, and endoscopic response based on SES-CD.
Percentage of Participants with a Clinical Response by PCDAI at Week 12 and Clinical Remission by PCDAI at Week 52Baseline to Week 52Clinical response based on PCDAI, and clinical remission based on PCDAI.

Secondary

MeasureTime frameDescription
Percentage of Participants Achieving Clinical Response by PCDAIWeek 12Clinical response based on PCDAI.
Percentage of Participants Achieving Clinical Response by Clinical Disease Activity Index (CDAI)Week 12Clinical response based on CDAI for participants ≥12 years of age
Percentage of Participants Achieving Clinical Remission by PCDAIWeek 12Clinical remission based on PCDAI.
Percentage of Participants Achieving Clinical Remission by CDAIWeek 12Clinical remission based on CDAI for participants ≥12 years of age.
Percentage of Participants Who Achieve PCDAI Clinical Response at Week 12 and PCDAI Clinical Remission and Endoscopic Remission at Week 52Baseline to Week 52
Percentage of Participants Who Achieve PCDAI Clinical Remission and Endoscopic Remission at Week 52Week 52
Percentage of Participants Achieving Clinical Response by PCDAI at Week 12 and Endoscopic Remission by SES-CD at Week 52Baseline to Week 52
Change from Baseline in C-reactive Protein (CRP)Baseline, Week 12
Change from Baseline in CRPBaseline, Week 52
Change from Baseline in Fecal calprotectinBaseline, Week 12
Percentage of Participants Achieving Clinical Response PCDAI at Week 12 and Clinical Remission by CDAI at Week 52Baseline to Week 52Clinical response by PCDAI, CDAI for participants ≥12 years of age
Percentage of Participants Achieving Endoscopic ResponseWeek 52
Percentage of Participants Achieving Clinical Response by PCDAI at Week 12 and PCDAI Clinical Remission without the use of Corticosteroids and Who Did Not Have Crohn's Disease (CD)-Related Surgery at Week 52Baseline to Week 52Clinical response and clinical remission by PCDAI
Pharmacokinetics (PK): Clearance of MirikizumabBaseline through Week 52
Pharmacokinetics (PK): Volume of Distribution of MirikizumabBaseline through Week 52

Countries

Austria, Belgium, Brazil, Canada, France, Israel, Italy, Japan, Netherlands, Norway, Poland, Portugal, South Korea, Spain, United Kingdom, United States

Contacts

CONTACTTrial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
LillyTrials@Lilly.com1-317-615-4559
CONTACTPhysicians interested in becoming principal investigators please contact
clinical_inquiry_hub@lilly.com
STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 25, 2026