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Colitis, UlcerativePhase 3MUNIXNCT00984568

Conventional Step-Up Versus Infliximab Monotherapy in Patients With Ulcerative Colitis (P05553)

A Phase 3 study testing Infliximab, Prednisolone and 5-aminosalicylic acid in people with Colitis, Ulcerative, run by Merck Sharp & Dohme LLC.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study will be performed to compare the efficacy and safety of the classical "Step-Up" approach for treatment of moderate-to-severe active ulcerative colitis using oral prednisolone + oral 5-aminosalicylic acid (5-ASA) or oral prednisolone + oral azathioprine (AZA) with a more intensive and early "Top-Hold"… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colitis, Ulcerative
What is being tested?
Infliximab, Prednisolone and 5-aminosalicylic acid
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
No sites listed yet
Study dates
Nov 2009to Mar 2012
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Any race or ethnicity
  • Must have a diagnosis of moderate-to-severe active ulcerative colitis (UC) with inflammation present beyond the rectum and including more than 20 cm of the colon (Mayo score of 6 to 12 points, inclusive ≥ 2 in the endoscopy subscore)
  • Must have responded inadequately to oral (with or without topical) 5-ASA treatment (prerequisite oral: at a minimum 4 g/d for 7 days) and must be considered for the first course of systemic corticosteroids; Participants with a UC and a Mayo score of ≥ 9 are also eligible without prior 5-ASA treatment
  • Must agree to use acceptable methods of contraception for at least 2 weeks prior to starting any study treatment and to continue until at least 6 months after the last doses of study drugs
  • Laboratory results must be within specified limits
  • Must be negative for colorectal cancer or any associated lesions
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  • Must have a negative tuberculosis (TB) test
  • Must have a chest x-ray within the 3 months with no clinically significant abnormality, or evidence of current active TB or latent TB
  • Must have a negative stool culture

Who cannot join

  • Pregnant, nursing, or planning pregnancy
  • Had received previous treatment for UC with the corticosteroids, infliximab, azathioprine/
  • 6-mercaptopurine (6-MP), cyclosporine, tacrolimus, methotrexate, sirolimus, mycophenolate, any tumor necrosis factor-alpha (TNF-α) inhibitor or receptor constructs that bind to ΤΝF-α (e.g., etanercept or adalimumab) and any other biologic agents
  • Frequent (chronic) use of non-steroidal anti-inflammatory drugs (NSAIDs)
  • Use of laxatives or any murine recombinant product
  • Had surgery for active gastrointestinal bleeding, peritonitis, intestinal obstruction, or intra-abdominal or pancreatic abscess requiring surgical drainage in previous 2 months
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  • History of colonic obstruction within the previous 6 months
  • History of mucosal dysplasia, fistula or colonic resection, adenomatous polyps or stoma, severe, fixed symptomatic stenosis of the large or small intestine
  • Had serious infection with previous 2 months, including human immunodeficiency virus (HIV) and hepatitis
  • Had organ transplant (with the exception of a corneal transplant)
  • Any malignancy within 5 years, including lymphoma
  • History of demyelinating disease such as multiple sclerosis or optic neuritis
  • Presence or history of congestive heart failure
  • Requires chronic and frequent use of antimotility agents for control of diarrhea
  • Requires total parenteral nutrition
  • Had participated in any other clinical trial within 30 days or intention to participate in another clinical trial during participation in this study

About this study

Official title: Conventional Step-Up Versus Infliximab Monotherapy in Patients With Active Moderate to Severe Ulcerative Colitis. A Randomized, Open Label, Prospective, Multicenter Study

This study will be performed to compare the efficacy and safety of the classical "Step-Up" approach for treatment of moderate-to-severe active ulcerative colitis using oral prednisolone + oral 5-aminosalicylic acid (5-ASA) or oral prednisolone + oral azathioprine (AZA) with a more intensive and early "Top-Hold" approach with intravenous infliximab (5 mg/kg) administered at Weeks 0, 2, and 6 and 8 weeks thereafter.

Read the detailed description

Participants will be randomized to receive either intravenous (IV) infliximab monotherapy (Top-Hold approach) starting at a dose of 5 mg/kg at Weeks 0, 2, and 6 and thereafter every 8 weeks in Level 1, or classical Step-Up treatment starting with oral prednisolone (40 mg/day for at least 3 days and at most 2 weeks followed by 1 mg/kg/day for a minimum of 7 days and up to 2 weeks in the case the participant does not show an improvement in clinical symptoms under 40 mg/day treatment) + oral 5-aminosalicylic acid (5-ASA) at a dose of 2 g/day in Level 1.

Participants receiving Step-Up treatment who have not achieved adequate response during the first 4 weeks of prednisolone treatment will directly enter Level 3 treatment after endoscopy is performed to confirm treatment eligibility. Furthermore, participants that have not achieved response at Week 4 will also directly enter Level 3 and be switched to treatment with IV infliximab.

If a participant experiences a first flare after initial response, participants in the Step-Up group will start prednisolone treatment at the last effective dose (i.e., participants that previously responded to prednisolone 40 mg/day will receive a dose of 40 mg/day for at least 3 days and up to 2 weeks; participants that previously responded to prednisolone 1 mg/kg/day will receive a dose of 1 mg/kg/day for a minimum of 7 days and up to 2 weeks). If the last effective dose was 40 mg/day and the participant does not respond within 14 days, the dose will be adjusted to 1 mg/kg/day for a minimum of 7 days and up to 2 weeks. In case the participant does not respond to prednisolone (i.e., does not return to their individual baseline partial Mayo score obtained at study Week 4), the participant will enter Level 3 and receive treatment with IV infliximab.

If a participant experiences a second flare after initial response at Week 4 (Level 1), the participant will enter treatment Level 2. In Level 2, participants will receive a prednisolone induction at the same effective dose as previously used in Level 1 + maintenance treatment with oral azathioprine (AZA) at a dose of 2.0-2.5 mg/kg/day. Participants that do not respond to this treatment at Level 2 or that develop a further flare after initial response at Level 2 will enter Level 3 and will receive treatment with IV infliximab following endoscopy to confirm treatment eligibility.

If at any time during treatment, a participant becomes prednisolone dependent (i.e., flare during tapering phase of prednisolone), the participant will enter Level 3 treatment with IV infliximab.

Participants in Level 1 of the Top-Hold treatment group (IV infliximab at Week 0, 2, and 6 and every 8 weeks thereafter) that have not achieved response at Week 4 will receive IV infliximab 5 mg/kg at reduced intervals of 4 weeks (Level 2) starting with the Week 10 infusion. Participants suffering a flare after initial response in Level 1 will be switched to to Level 2. Participants that do not respond to treatment at reduced intervals after 3 infusions (12 weeks), or that develop a further flare after initial response at Level 2, will be switched to treatment with oral prednisolone + AZA (Level 3) following colonoscopy to confirm eligibility.

When a participant responds to treatment with IV infliximab in Level 2, they will return to treatment with IV infliximab every 8 weeks when response is achieved at 3 consecutive visits.

Being tested
Infliximab, Prednisolone, 5-aminosalicylic acid, Azathioprine
Medical subject headings
Colitis, Ulcerative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • InfliximabBiological

    Also called Remicade; SCH 215596

    Infliximab intravenous infusion at a dose of 5 mg/kg.

  • PrednisoloneDrug

    Also called Decortin

    Oral prednisolone 40 mg/day or 1 mg/kg/day depending upon participant response.

  • 5-aminosalicylic acidDrug

    Also called 5-ASA, Pentasa

    5-ASA administered orally at a dose of 2 g/day.

  • AzathioprineDrug

    Also called AZA, Imurek

    AZA administered orally at a dose of 2.0-2.5 mg/kg/day.

Study groups in NCT00984568
Study groupRoleWhat they receive
Top-HoldExperimentalLevel 1: Infliximab IV 5 mg/kg at Weeks 0, 2, and 6, and every 8 weeks thereafter. Level 2: Infliximab IV 5 mg/kg every 4 weeks. Level 3: Prednisolone induction + AZA 2.0-2.5 mg/kg/day.
Receives: Biological: Infliximab; Drug: Prednisolone; Drug: Azathioprine
Step-UpActive comparatorLevel 1: Oral prednisolone (40 mg/day or 1 mg/kg/day in the case of non-response) + oral 5-aminosalicylic acid (5-ASA) 2 g/day. Level 2: Oral prednisolone (40 mg/day or 1 mg/kg/day in the case of non-response) + oral azathioprine (AZA) at a dose of 2.0-2.5 mg/kg/day. Level 3: Infliximab 5 mg/kg at Weeks 0, 2, and 6 and every 8 weeks thereafter.
Receives: Biological: Infliximab; Drug: Prednisolone; Drug: 5-aminosalicylic acid; Drug: Azathioprine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Response at Week 4 and Steroid-Free Remission at Week 50

    Response at Week 4 was defined as a minimum decrease from baseline in Mayo score of 3 points and 30%. Steroid-free remission at Week 50 was defined as a total Mayo score (including endoscopic assessment) of 2 points or lower and no individual subscore exceeding 1. The Mayo score consists of the following 4 subscores: stool frequency; rectal bleeding; endoscopy results; physician's global assessment. Each subscore is rated on a scale from 0 (best) to 3 (worst). The total Mayo score is calculated as the sum of the 4 subscores and ranges from 0 (best) to 12 (worst).

    Measured: Week 50

Secondary outcomes (1)
  1. Number of Participants Achieving Treatment Response

    Response was defined as a minimum decrease from baseline in total Mayo score of 3 points and 30% up to and including 4 weeks after the start of treatment. The Mayo score consists of the following 4 subscores: stool frequency; rectal bleeding; endoscopy results; physician's global assessment. Each subscore

    is rated on a scale from 0 (best) to 3 (worst). The total Mayo score is calculated as the sum of the 4 subscores and ranges from 0 (best) to 12 (worst).

    Measured: Up to Week 4

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Sep 2009 (estimated)
  2. Study startNov 2009
  3. Primary completionMar 2012
  4. Study completionMar 2012

Why it stopped: Due to slow recruitment the study was stopped prematurely.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00984568
Sponsor's protocol ID
P05553
Other IDs
2009-010065-23, 2009
Acronym
MUNIX
Status last verified
Mar 2017
First submitted
24 Sep 2009
Last updated
13 Apr 2017
Data monitoring committee
No
Individual data sharing
Yes: http://www.merck.com/clinical-trials/pdf/Merck%20Procedure%20on%20Clinical%20Trial%20Data%20Access%20Final\_Updated%20July\_9\_2014.pdf http://engagezone.msd.com/ds\_documentation.php

Publications

  • Hasskamp J, Meinhardt C, Patton PH, Timmer A. Azathioprine and 6-mercaptopurine for maintenance of remission in ulcerative colitis. Cochrane Database Syst Rev. 2025 Feb 27;2(2):CD000478. doi: 10.1002/14651858.CD000478.pub5.

    PubMed 40013523

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Infliximab, Prednisolone and 5-aminosalicylic acid in people with Colitis, Ulcerative, run by Merck Sharp & Dohme LLC.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 13 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Apr 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Response at Week 4 and Steroid-Free Remission at Week 50 (time frame: Week 50). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00984568, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Apr 2017; AzTrials last refreshed its copy on 7 Nov 2026.

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