| Eligibility |
Inclusion Criteria:
1. Male or female participants with successful completion or early termination due to
lack of efficacy from Study D5271C00001 (Legacy #3150-301-008).
Meets 1 of the following criteria for successful completion or early termination due
to lack of efficacy from Study D5271C00001 (Legacy #3150-301-008):
1. A participant is considered to have completed the D5271C00001 (Legacy
#3150-301-008) study if they have received scheduled study interventions,
completed scheduled visits, and completed Week 52 assessments.
2. A participant in Study D5271C00001 (Legacy #3150-301-008) who discontinued from
the study due to lack of efficacy after a minimum of 12 weeks of double-blind
treatment and met criteria for the use of rescue treatment in the lead-in
protocol.
2. Criterion deleted as part of Amendment.
3. Each participant must have had the ileocolonoscopic procedure at the final visit (Week
52, Week 12, or early termination after Week 12 of Study D5271C00001 (Legacy #
3150-301-008).
4. Female participants of childbearing potential must have a negative urine pregnancy
test prior to administration of study intervention and must agree to use a highly
effective method of birth control (confirmed by the investigator) from signing the ICF
throughout the study duration and for at least 18 weeks after last dose of study
intervention.
5. Women not of childbearing potential are defined as women who are either permanently
sterilized (hysterectomy, bilateral oophorectomy, or bilateral salpingectomy), or who
are postmenopausal. Women will be considered postmenopausal if they have been
amenorrhoeic for 12 months prior to signing the ICF without an alternative medical
cause.
6. Nonsterilized males who are sexually active with a female partner of childbearing
potential must comply with the methods of contraception during treatment and until the
end of relevant systemic exposure in the male participant, plus a further 18 weeks.
7. Capable of giving signed informed consent which includes compliance with the
requirements and restrictions listed in the ICF and in this protocol.
8. Written informed consent from the participant has been obtained prior to any study
related procedures.
9. Legally authorized representative consent has been obtained (if applicable).
10. Written documentation has been obtained in accordance with the relevant country and
local privacy requirements, where applicable.
11. Demonstration of adequate compliance with the study procedures in Study D5271C00001
(Legacy #3150 301-008) in the opinion of the investigator and/or sponsor.
12. Willingness and ability to attend all study visits, comply with the study procedures,
read and write in order to complete questionnaires, and be able to complete the study.
Complete inclusion criteria are in the study protocol
Exclusion Criteria:
1. Any participant with an unresolved AE from the Study D5271C00001 (Legacy #3150
301-008) that would limit the participant's ability to participate in or complete this
study.
2. Current diagnosis of ischemic colitis, colonic mucosal dysplasia, or primary
sclerosing cholangitis.
3. Organ or cell-based transplantation (eg, islet cell transplantation or autologous stem
cell transplantation) with the exception of corneal transplant.
4. Any other condition or finding that, in the investigator's or sponsor's opinion, would
either confound proper interpretation of the study or expose a participant to
unacceptable risk.
5. History of cancer except for basal cell and/or squamous cell carcinoma of the skin,
and carcinoma in situ of the cervix within 12 months of screening.
6. Participant meets criteria for discontinuation of study intervention during prior the
D5271C00001 (Legacy #3150 301-008) study (excluding lack of efficacy).
7. Criterion deleted as part of Amendment.
8. Known history of primary immunodeficiency, splenectomy, or any underlying condition
that predisposes the subject to infection, including HIV infection.
9. Prolonged QTcF interval (QTc >450 msec or QTC >480 for participants with bundle branch
block; determined by central ECG), or conditions leading to additional risk for QT
prolongation (eg, congenital long-QT syndrome).
10. Clinically significant kidney disease including but not limited to:
(a) Chronic kidney disease with an estimated glomerular filtration rate of less than
30 ml/min calculated by MDRD equation, as applicable, by the central laboratory at
screening are excluded.
11. Participant requires additional immunosuppressive therapy (aside from permitted
concomitant medication), biological treatment, or prohibited treatment.
12. Participant received a Bacille Calmette-Guérin vaccination within 12 months of Week 0
(Visit 1) or any other live vaccine < 4 weeks prior to Week 0 (Visit 1) or is planning
to receive any such vaccine over the course of the study.
13. Participant received a prohibited medication during participation in the lead-in study
or during screening for this study.
14. Participant is planning to receive an investigational drug (other than study
intervention) or investigational device at any time during Study D5271C00002 (Legacy
#3150-303-008) with the exception of "registry" or "cohort" trials.
15. Participants with a known hypersensitivity to brazikumab or any of the excipients of
the product.
16. Protocol-defined abnormal laboratory results at screening. 17. Females who are
pregnant, nursing, or planning a pregnancy during the study OR females who are of
childbearing potential and do not agree to use a highly effective method of
contraception consistently and correctly.
18 Participant is directly or indirectly involved in the conduct and administration of this
study as an investigator, subinvestigator, study coordinator, other study staff member, or
employee of AstraZeneca, or the participant is a first-degree family member, significant
other, or relative residing with one of the above persons involved directly or indirectly
in the study; or the participant is enrolled in this study at another clinical study site.
19 Involvement in the planning and/or conduct of the study (applies to both AstraZeneca
staff and/or staff at the study site).
20 Judgment by the investigator that the participant should not participate in the study if
the participant is unlikely to comply with study procedures, restrictions, and
requirements.
21 Previous participation in the present study.
Complete exclusion criteria are in the study protocol
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