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Medical Centre Asklepii OOD | Dupnitsa, Bulgaria

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A Study of Guselkumab in Participants With Moderately to Severely Active Ulcerative Colitis (QUASAR)

Janssen (J&J Innovative Medicine) logo

Janssen (J&J Innovative Medicine)

Status and phase

Active, not recruiting
Phase 3
Phase 2

Conditions

Ulcerative Colitis

Treatments

Drug: Guselkumab
Drug: Placebo

Study type

Interventional

Funder types

Industry

Identifiers

NCT04033445
CNTO1959UCO3001 (Other Identifier)
CR108657
2023-504718-31-00 (Registry Identifier)
2018-004002-25 (EudraCT Number)

Details and patient eligibility

About

The purpose of this study is to evaluate the efficacy and safety of guselkumab in participants with moderately to severely active ulcerative colitis (UC).

Enrollment

1,064 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Documented diagnosis of ulcerative colitis (UC)
  • Moderately to severely active UC, defined by modified Mayo score
  • Demonstrated inadequate response or intolerance to medical therapies specified in the protocol
  • Screening laboratory test results within the parameters specified in the protocol

Exclusion criteria

  • Diagnosis of indeterminate colitis, microscopic colitis, ischemic colitis, or Crohn's disease or clinical findings suggestive of Crohn's disease
  • UC limited to the rectum only or to less than (<) 20 centimeter (cm) of the colon
  • Presence of a stoma
  • Presence or history of a fistula
  • Receiving prohibited medications and/or treatment

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Double Blind

1,064 participants in 8 patient groups, including a placebo group

Induction Study 1: Guselkumab Dose 1
Experimental group
Description:
Participants will receive guselkumab dose 1 intravenously (IV) in Induction Study 1. Subsequent study treatment will be determined by the participant's clinical response status at Week 12.
Treatment:
Drug: Guselkumab
Induction Study 1: Guselkumab Dose 2
Experimental group
Description:
Participants will receive guselkumab dose 2 IV in Induction Study 1. Subsequent study treatment will be determined by the participant's clinical response status at Week 12.
Treatment:
Drug: Guselkumab
Induction Study 1: Placebo IV
Placebo Comparator group
Description:
Participants will receive matching placebo IV in Induction Study 1. Subsequent study treatment will be determined by the participant's clinical response status at Week 12. Clinical nonresponders will be administered guselkumab IV.
Treatment:
Drug: Placebo
Induction Study 2: Guselkumab IV
Experimental group
Description:
Participants will receive guselkumab IV in Induction Study 2. Subsequent study treatment will be determined by the participant's clinical response status at Week 12.
Treatment:
Drug: Guselkumab
Induction Study 2: Placebo IV
Placebo Comparator group
Description:
Participants will receive matching placebo IV in Induction Study 2. Subsequent study treatment will be determined by the participant's clinical response status at Week 12. Clinical nonresponders will be administered guselkumab IV.
Treatment:
Drug: Placebo
Maintenance Study: Maintenance Dose Regimen 1
Experimental group
Description:
Participants will receive guselkumab maintenance dose regimen 1 subcutaneously (SC) every 4 weeks (q4w).
Treatment:
Drug: Guselkumab
Maintenance Study: Maintenance Dose Regimen 2
Experimental group
Description:
Participants will receive guselkumab maintenance dose regimen 2 SC every 8 weeks (q8w).
Treatment:
Drug: Guselkumab
Maintenance Study: Placebo SC
Placebo Comparator group
Description:
Participants will receive matching placebo SC q4w.
Treatment:
Drug: Placebo

Trial documents
2

Trial contacts and locations

392

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Data sourced from clinicaltrials.gov

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