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Efficacy and Safety of Two Treatment Algorithms in Adults With Moderate to Severe Crohn's Disease (CALM)

Primary Purpose

Crohn's Disease

Status
Completed
Phase
Phase 3
Locations
Study Type
Interventional
Intervention
Adalimumab
Prednisone
Azathioprine
Sponsored by
AbbVie (prior sponsor, Abbott)
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Crohn's Disease

Eligibility Criteria

18 Years - 75 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Diagnosis of ileal, colonic (including rectal), or ileocolonic Crohn's disease (CD) confirmed using imaging technology or endoscopy not more than 6 years prior to Baseline.
  • CDAI score of greater than or equal to 220 and less than or equal to 450 at the Baseline visit in participants not receiving prednisone or equivalent at Baseline. CDAI score of greater than or equal to 200 and less than or equal to 450 at the Baseline visit if the participant is receiving prednisone less than or equal to 20 mg or equivalent for at least 7 days before Baseline. CDAI score of greater than 150 and less than or equal to 450 at the Baseline visit if the participant is receiving prednisone higher than 20 mg or equivalent for greater than or equal to 7 days before Baseline
  • Participant or his/her legal representative have voluntarily signed and dated an informed consent approved by and compliant with the requirements of this study protocol which has been approved by an Institutional Review Board (IRB)/Independent Ethics Committee (IEC).
  • Adequate cardiac, renal and hepatic function as determined by the Principal Investigator and demonstrated by Screening laboratory evaluations, questionnaires and physical examination results that do not indicate an abnormal clinical condition which would place the participant at undue risk and thus preclude participation in the study.
  • Participant must be able to self-inject and orally administer study medication or have a designee or Healthcare Professional who can assist

Exclusion Criteria:

  • Previous or current biologic use for Crohn's disease or participation in a biologic study
  • Previous or current use of immunomodulators (e.g., methotrexate, azathioprine, 6-mercaptopurine, JAK inhibitor, alpha-integrin) for Crohn's disease or participation in a Crohn's disease study with immunomodulator(s). Current use of immunomodulators for non-Crohn's disease at Baseline.
  • Greater than two previous courses of corticosteroid (systemic corticosteroid) or budesonide) for Crohn's Disease. A course is defined as 1) total duration for burst and taper ≥ 4 weeks and 2) prednisone or equivalent ≥ 40 mg (or budesonide ≥ 9 mg) for at least 2 weeks.
  • Participants with a poorly controlled medical condition such as: uncontrolled diabetes with documented history of recurrent infections, unstable ischemic heart disease, moderate to severe congestive heart failure (New York Heart Association [NYHA] class III or IV), recent cerebrovascular accident and any other condition which, in the opinion of the Investigator or the sponsor, would put the participant at risk by participation in the protocol
  • Participants with positive C. difficile stool assay at Screening.

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm Type

    Experimental

    Active Comparator

    Arm Label

    Tight Control Management

    Clinically Driven Management

    Arm Description

    Participants randomized to receive management of disease activity using criteria based on Crohn's Disease Activity Index (CDAI), high sensitivity C-reactive protein (hs-CRP), fecal calprotectin, and corticosteroid use. Participants received customized therapy that could include prednisone, adalimumab, and azathioprine. Participants who randomized at Week 9 meeting success criteria started with no therapy; participants who randomized prior to Week 9 or who randomized at Week 9 but did not meet the success criteria began treatment with adalimumab. Therapy was escalated according to pre-specified tight control criteria: At Key Visit 1 the success criteria were CDAI < 150, hs-CRP, < 5 mg/L, fecal calprotectin < 250 μg/g, and absence of prednisone use. At Key Visits 3, 4, and 5 (every 12 weeks after Key visit 1), the criteria were CDAI < 150, hs-CRP < 5 mg/L, fecal calprotectin < 250 μg/g, and absence of prednisone during the preceding week.

    Participants randomized to receive management of disease activity using criteria based on Crohn's Disease Activity Index (CDAI) and corticosteroid use. Participants received customized therapy that could include prednisone, adalimumab, and azathioprine. Participants who randomized at Week 9 meeting success criteria started with no therapy; participants who randomized prior to Week 9 or who randomized at Week 9 but did not meet the success criteria began treatment with adalimumab. Therapy was escalated according to pre-specified failure criteria using less stringent criteria: At Key Visit 1 the criteria for management of disease activity were a CDAI decrease ≥ 70 (CR-70) compared to Baseline or CDAI < 200 at 1 week prior to the visit. At Key Visits 3, 4, and 5 (every 12 weeks after Key visit 1), the criteria for a change in treatment were a CDAI decrease of ≥ 100 (CR-100) compared to Baseline or CDAI < 200, and absence of prednisone during the preceding week.

    Outcomes

    Primary Outcome Measures

    Percentage of Participants With Mucosal Healing and No Deep Ulcerations
    Percentage of participants with mucosal healing (defined as Crohn's disease endoscopy Index of severity [CDEIS] < 4) and no deep ulcerations on ileocolonoscopy (defined as the absence of all deep ulcerations in all segments explored in CDEIS) at 48 weeks after randomization (48 weeks after the 1st Key visit). The ileocolonoscopies were evaluated by the site. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon (ileum, ascending colon, transverse colon, descending colon and sigmoid loop, and rectum). The score ranges from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing data 48 weeks after Randomization were counted as non-responders.

    Secondary Outcome Measures

    Percentage of Participants in Deep Remission 48 Weeks After Randomization
    Deep remission was defined as CDAI < 150, discontinuation from steroids for at least 8 weeks, absence of draining fistula, CDEIS < 4 and no deep ulcerations. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing data 48 weeks after randomization were counted as non-responders.
    Percentage of Participants in Biologic Remission 48 Weeks After Randomization
    Biologic remission was defined as high sensitivity C-reactive protein (hs-CRP) < 5 mg/L, fecal Calprotectin < 250 μg/g, and CDEIS < 4 at 48 weeks after randomization. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after Randomization were counted as non-responders.
    Percentage of Participants With Mucosal Healing 48 Weeks After Randomization
    Percentage of participants with mucosal healing (defined as a CDEIS < 4) at 48 weeks after randomization (48 weeks after the 1st Key visit). The ileocolonoscopies were evaluated by the site. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after Randomization were counted as non-responders.
    Percentage of Participants With Mucosal Healing and CDEIS < 4 in Every Segment 48 Weeks After Randomization
    Percentage of participants with mucosal healing (defined as CDEIS < 4) and CDEIS < 4 in every segment on ileocolonoscopy at 48 weeks after randomization. The ileocolonoscopies were evaluated by the site. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after randomization were counted as non-responders.
    Percentage of Participants With Complete Mucosal Healing 48 Weeks After Randomization
    Complete mucosal healing was defined as CDEIS = 0. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after randomization were counted as non-responders.
    Percentage of Participants With Endoscopic Response 48 Weeks After Randomization
    Endoscopic response was defined as a decrease CDEIS > 5 points. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after Randomization were counted as non-responders.
    Change From Baseline in CDEIS at 48 Weeks After Randomization
    CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon (ileum, ascending colon, transverse colon, descending colon and sigmoid loop, and rectum). The score ranges from 0 to 44 where higher scores indicate more severe endoscopic activity. A negative change from Baseline indicates improvement.
    Change From Baseline in CDAI Over Time
    The Crohn's Disease Activity Index (CDAI) is a research tool used to quantify the symptoms of patients with Crohn's disease. Participants were asked to record the frequency of stools, abdominal pain and general well-being on a daily basis. In addition to the diary data, the investigator assessed the following for the calculation of CDAI: presence of complications (arthritis/arthralgia, iritis/uveitis, erythema nodosum/pyoderma gangrenosum/aphthous stomatitis, anal fissure/fistula/abscess, other fistula, and fever), the use of antidiarrheal medicines, presence of an abdominal mass, hematocrit, and body weight. The CDAI is the sum of the products of each item multiplied by a weighting factor and generally ranges from 0 up to 600, where remission of Crohn's disease is defined as CDAI < 150, and severe disease is defined as CDAI > 450. A negative change from Baseline indicates improvement.
    Time to Crohn's Disease Flare
    Time to Crohn's disease flare, where flare is defined as an increase in CDAI ≥ 70 points compared to Week 8 or Early Randomization CDAI, and a CDAI > 220.
    Time to Clinical Remission
    Clinical remission was defined as CDAI < 150. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI scores generally range from 0 to 600 where higher scores indicate more severe disease.
    Time to Steroid-free Remission
    Steroid-free remission was defined as CDAI < 150 and discontinuation from steroids for at least 8 weeks. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease.
    Percentage of Participants in Clinical Remission Over Time
    Clinical remission was defined as CDAI < 150. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease. Participants with missing data at each time point were counted as non-responders.
    Percentage of Participants in Steroid-free Remission Over Time
    Steroid-free remission was defined as CDAI < 150 and discontinuation from steroids for at least 8 weeks. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease. Participants with missing data at each time point were counted as non-responders.
    Time to All-cause Hospitalization
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic.
    Time to Crohn's Disease-related Hospitalization or Hospitalization Due to Adverse Event Relating to Study Medication
    Crohn's disease-related hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic for reasons related to Crohn's disease (CD). Hospitalization for adverse events relating to study medication, i.e., prednisone, azathioprine or adalimumab, were according to Investigator's clinical judgment.
    Number of Major Crohn's Disease-related Surgeries After Randomization
    Major Crohn's disease-related intra-abdominal surgery included: bowel resection ostomy by-pass strictureplasty drainage of abdominal or pelvic abscess (surgical drainage or percutaneous drainage by interventional radiology). The following were excluded: debridement exploration laparotomy abdominal surgery for other reason perineal related surgery abscess drainage placement of setons fistulotomy Total parental nutrition (TPN) use
    Number of Crohn's Disease-related Hospitalizations After Randomization
    Any hospitalization with an overnight stay in hospital/clinic related to Crohn's disease.
    Number of All-cause Hospitalizations After Randomization
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic.
    Total Length of Stay in Hospital for All-cause Hospitalizations
    Total Length of Stay in Hospital for Crohn's Disease-related Hospitalizations
    Number of Crohn's Disease-related Surgical Procedures After Randomization
    The total number of CD-related surgical procedures included major CD-related surgery, debridement, perineal related surgery - abscess drainage, seton placement, fistulotomy, and TPN.
    Time to Crohn's Disease-related Hospitalization Due to Emergency
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic. Hospitalization due to emergency was defined as a hospitalization admitted through the emergency department.
    Number of Crohn's Disease-related Hospitalizations Due to Emergency
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic. Hospitalization due to emergency was defined as a hospitalization admitted through the emergency department.
    Change in Crohn's Disease Behavior According to Montreal Classification
    Participants' Crohn's Disease was classified according to the Montreal Classification which classifies CD according to its predominant phenotypic elements (age at diagnosis, location, and disease behavior) based on the results of clinical examination and endoscopy. Disease behavior was classified according to the following: B1 = non-stricturing, non-penetrating; B2 = structuring; B3 = penetrating; P = perianal disease modifier. The change in Montreal Classification is presented in three categories: no change, deterioration, and improvement. Deterioration was defined as an increase in behavior index between 1 and 3, or development of perianal disease. Participants with missing data at Week 48 were classified as deterioration.
    Change From Baseline in High Sensitivity C-Reactive Protein (Hs-CRP) Over Time
    High sensitivity C-reactive protein was analyzed by a central laboratory.
    Change in Fecal Calprotectin From Baseline to 48 Weeks After Randomization
    Stool samples were analyzed by a central laboratory for fecal calprotectin qualitative measurement (< 250 or ≥ 250 μg/g). Results are reported for participants in each category at Baseline and 48 weeks after Randomization. Participants with missing data 48 weeks after Randomization were counted as having fecal calprotectin ≥ 250µg/g.
    Total Dose of Prednisone
    The total dose of prednisone each participant received during both the run-in phase and post-randomization treatment phase.
    Change From Baseline in Quality of Life in Inflammatory Bowel Disease Questionnaire (IBDQ) Total Score
    The IBDQ measures the effects of inflammatory bowel disease on daily function and quality of life. The IBDQ consists of 32 questions which address symptoms as a result of Crohn's disease, feeling in general, and mood. Each question is answered on a scale from 1 (all of the time) to 7 ( none of the time); the total score ranges from 7 (worst) to 224 (best). A positive change from baseline indicates improvement.
    Change From Baseline in Work Productivity Activity Index - Crohn's Disease (WPAI:CD)
    The WPAI:CD questionnaire was used to assess impairments in both paid work and unpaid work due to symptoms of Crohn's Disease. The self-administered questionnaire consisted of 6 questions. Work time missed was defined as the percentage of time absent from work due to Crohn's disease in the past week. Impairment while working is the participant's assessment of the degree to which Crohn's disease affected productivity while working in the past 7 days. Total work productivity impairment takes into account both hours missed due to Crohn's disease symptoms and the patient's assessment of the degree to which Crohn's disease affected their productivity while working. Total activity impairment is the percent impairment of non-work related activities due to Crohn's disease. WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity. A negative change from Baseline indicates improvement.
    Change From Baseline in Patient Health Questionnaire - 9 (PHQ9)
    The PHQ-9 is a 9-item questionnaire for assessing the severity of depression. Each question is answered on a scale from 0 (not at all) to 3 (nearly every day). The total score ranges from 0 to 27, where higher scores indicate more severe depression. A negative change from Baseline score indicates improvement.
    Change From Baseline in Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) Score
    The FACIT-Fatigue scale is a 13-item self-administered questionnaire that assesses both the physical and functional consequences of fatigue. Each question is answered on a 5-point scale, from 0 (not at all) to 4 (very much). The FACIT-Fatigue score ranges from 0 to 52, with higher scores denoting lower levels of fatigue. A positive change from Baseline score indicates an improvement. .
    Change From Baseline in Short-Form 36 (SF-36) Physical Component Summary and Mental Component Summary Scores
    The Medical Outcome Study Short Form 36-Item Health Survey (SF-36), Version 2 is a self-administered instrument that measures the impact of disease on overall quality of life and consists of 36 questions in eight domains (physical function, pain, general and mental health, vitality, social function, physical and emotional health). The physical component summary (PCS) score summarizes the subscales physical functioning, role-physical, bodily pain, and general health. The mental component summary (MCS) score summarizes the subscales vitality, social functioning, role-emotional, and mental health. Each score ranges from 0 to 100 where higher scores indicate a better quality of life. A positive change from Baseline score indicates an improvement.

    Full Information

    First Posted
    November 4, 2010
    Last Updated
    December 15, 2017
    Sponsor
    AbbVie (prior sponsor, Abbott)
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    1. Study Identification

    Unique Protocol Identification Number
    NCT01235689
    Brief Title
    Efficacy and Safety of Two Treatment Algorithms in Adults With Moderate to Severe Crohn's Disease
    Acronym
    CALM
    Official Title
    An Open-Label, Multicenter, Efficacy and Safety Study to Evaluate Two Treatment Algorithms in Subjects With Moderate to Severe Crohn's Disease
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    December 2017
    Overall Recruitment Status
    Completed
    Study Start Date
    February 11, 2011 (Actual)
    Primary Completion Date
    November 3, 2016 (Actual)
    Study Completion Date
    January 3, 2017 (Actual)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Sponsor
    Name of the Sponsor
    AbbVie (prior sponsor, Abbott)

    4. Oversight

    Data Monitoring Committee
    No

    5. Study Description

    Brief Summary
    The primary objective of this study was to demonstrate that tight control of disease activity, using stringent criteria based on Crohn's disease activity Index (CDAI), biomarkers (high sensitivity C-reactive protein [hs-CRP] and fecal calprotectin), and corticosteroid use, improves the rate of mucosal healing 48 weeks after randomization compared with management using less stringent criteria based only on CDAI and corticosteroid use.
    Detailed Description
    The study included a 1- to 3-week screening period, up to 8 weeks of prednisone run-in treatment, a 48-week post-randomization treatment period, and a 70 day follow-up phone call or clinic visit, for a total duration of up to 69 weeks. Participants who met entry criteria were enrolled and initiated an oral prednisone regimen at Baseline (Week 0). At the first key visit, participants were randomized into 1 of 2 groups (Tight Control group or Clinically Driven group), with stratification according to screening smoking status, weight, and disease duration. The first key visit was the randomization visit; subsequent key visits occurred every 12 weeks following the first key visit. Randomization normally took place 9 weeks after Baseline. However, participants who fulfilled the early randomization criteria may have been randomized as early as the Baseline (Week 0) visit. Therapeutic option changes, if appropriate, occurred at key visits based on results from previous success criteria visits.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Crohn's Disease

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Phase 3
    Interventional Study Model
    Parallel Assignment
    Masking
    None (Open Label)
    Allocation
    Randomized
    Enrollment
    252 (Actual)

    8. Arms, Groups, and Interventions

    Arm Title
    Tight Control Management
    Arm Type
    Experimental
    Arm Description
    Participants randomized to receive management of disease activity using criteria based on Crohn's Disease Activity Index (CDAI), high sensitivity C-reactive protein (hs-CRP), fecal calprotectin, and corticosteroid use. Participants received customized therapy that could include prednisone, adalimumab, and azathioprine. Participants who randomized at Week 9 meeting success criteria started with no therapy; participants who randomized prior to Week 9 or who randomized at Week 9 but did not meet the success criteria began treatment with adalimumab. Therapy was escalated according to pre-specified tight control criteria: At Key Visit 1 the success criteria were CDAI < 150, hs-CRP, < 5 mg/L, fecal calprotectin < 250 μg/g, and absence of prednisone use. At Key Visits 3, 4, and 5 (every 12 weeks after Key visit 1), the criteria were CDAI < 150, hs-CRP < 5 mg/L, fecal calprotectin < 250 μg/g, and absence of prednisone during the preceding week.
    Arm Title
    Clinically Driven Management
    Arm Type
    Active Comparator
    Arm Description
    Participants randomized to receive management of disease activity using criteria based on Crohn's Disease Activity Index (CDAI) and corticosteroid use. Participants received customized therapy that could include prednisone, adalimumab, and azathioprine. Participants who randomized at Week 9 meeting success criteria started with no therapy; participants who randomized prior to Week 9 or who randomized at Week 9 but did not meet the success criteria began treatment with adalimumab. Therapy was escalated according to pre-specified failure criteria using less stringent criteria: At Key Visit 1 the criteria for management of disease activity were a CDAI decrease ≥ 70 (CR-70) compared to Baseline or CDAI < 200 at 1 week prior to the visit. At Key Visits 3, 4, and 5 (every 12 weeks after Key visit 1), the criteria for a change in treatment were a CDAI decrease of ≥ 100 (CR-100) compared to Baseline or CDAI < 200, and absence of prednisone during the preceding week.
    Intervention Type
    Biological
    Intervention Name(s)
    Adalimumab
    Other Intervention Name(s)
    ABT-D2E7, Humira
    Intervention Description
    If adalimumab was initiated, it was administered subcutaneously as a 160 mg induction dose the first week, followed by 80 mg 2 weeks later, followed by 40 mg every other week as a maintenance dose. The dose of adalimumab was increased from 40 mg eow to 40 mg every week in participants with an inadequate response and de-escalated to 40 mg eow in participants who met success criteria.
    Intervention Type
    Drug
    Intervention Name(s)
    Prednisone
    Intervention Description
    The suggested regimen for participants initiating prednisone consisted of a maximum dose of prednisone 40 mg/day for 2 weeks, followed by a fixed taper for 6 weeks.
    Intervention Type
    Drug
    Intervention Name(s)
    Azathioprine
    Intervention Description
    Participants with normal thiopurine methyltransferase (TPMT) enzyme activity could receive oral azathioprine 2.5 mg/kg/day. In participants with intermediate TPMT enzyme activity azathioprine was initiated at a dose of 1.25 mg/kg/day. The dose of azathioprine was adjusted according to abnormalities of white blood cell (WBC) count, platelet count, liver function tests (LFTs; i.e. alanine transaminase [ALT], aspartate transaminase [AST], alkaline phosphatase), lipase, blood urea nitrogen (BUN), and serum creatinine.
    Primary Outcome Measure Information:
    Title
    Percentage of Participants With Mucosal Healing and No Deep Ulcerations
    Description
    Percentage of participants with mucosal healing (defined as Crohn's disease endoscopy Index of severity [CDEIS] < 4) and no deep ulcerations on ileocolonoscopy (defined as the absence of all deep ulcerations in all segments explored in CDEIS) at 48 weeks after randomization (48 weeks after the 1st Key visit). The ileocolonoscopies were evaluated by the site. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon (ileum, ascending colon, transverse colon, descending colon and sigmoid loop, and rectum). The score ranges from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing data 48 weeks after Randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Secondary Outcome Measure Information:
    Title
    Percentage of Participants in Deep Remission 48 Weeks After Randomization
    Description
    Deep remission was defined as CDAI < 150, discontinuation from steroids for at least 8 weeks, absence of draining fistula, CDEIS < 4 and no deep ulcerations. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing data 48 weeks after randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Title
    Percentage of Participants in Biologic Remission 48 Weeks After Randomization
    Description
    Biologic remission was defined as high sensitivity C-reactive protein (hs-CRP) < 5 mg/L, fecal Calprotectin < 250 μg/g, and CDEIS < 4 at 48 weeks after randomization. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after Randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Title
    Percentage of Participants With Mucosal Healing 48 Weeks After Randomization
    Description
    Percentage of participants with mucosal healing (defined as a CDEIS < 4) at 48 weeks after randomization (48 weeks after the 1st Key visit). The ileocolonoscopies were evaluated by the site. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after Randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Title
    Percentage of Participants With Mucosal Healing and CDEIS < 4 in Every Segment 48 Weeks After Randomization
    Description
    Percentage of participants with mucosal healing (defined as CDEIS < 4) and CDEIS < 4 in every segment on ileocolonoscopy at 48 weeks after randomization. The ileocolonoscopies were evaluated by the site. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Title
    Percentage of Participants With Complete Mucosal Healing 48 Weeks After Randomization
    Description
    Complete mucosal healing was defined as CDEIS = 0. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Title
    Percentage of Participants With Endoscopic Response 48 Weeks After Randomization
    Description
    Endoscopic response was defined as a decrease CDEIS > 5 points. CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon. The range of the score is from 0 to 44 where higher scores indicate more severe endoscopic activity. Participants with missing values 48 weeks after Randomization were counted as non-responders.
    Time Frame
    48 weeks after Randomization
    Title
    Change From Baseline in CDEIS at 48 Weeks After Randomization
    Description
    CDEIS is an index for determining the severity of Crohn's disease. The CDEIS considers deep ulcerations, superficial ulcerations, ulcerated and non-ulcerated surface, and the presence of ulcerated/non-ulcerated stenosis evaluated in 5 pre-defined segments of the colon (ileum, ascending colon, transverse colon, descending colon and sigmoid loop, and rectum). The score ranges from 0 to 44 where higher scores indicate more severe endoscopic activity. A negative change from Baseline indicates improvement.
    Time Frame
    Baseline and 48 weeks after Randomization
    Title
    Change From Baseline in CDAI Over Time
    Description
    The Crohn's Disease Activity Index (CDAI) is a research tool used to quantify the symptoms of patients with Crohn's disease. Participants were asked to record the frequency of stools, abdominal pain and general well-being on a daily basis. In addition to the diary data, the investigator assessed the following for the calculation of CDAI: presence of complications (arthritis/arthralgia, iritis/uveitis, erythema nodosum/pyoderma gangrenosum/aphthous stomatitis, anal fissure/fistula/abscess, other fistula, and fever), the use of antidiarrheal medicines, presence of an abdominal mass, hematocrit, and body weight. The CDAI is the sum of the products of each item multiplied by a weighting factor and generally ranges from 0 up to 600, where remission of Crohn's disease is defined as CDAI < 150, and severe disease is defined as CDAI > 450. A negative change from Baseline indicates improvement.
    Time Frame
    Baseline and 4 and 8 weeks during the prednisone run-in, and 2, 6, 11, 14, 18, 23, 26, 30, 35, 38, 42, and 48 weeks after Randomization.
    Title
    Time to Crohn's Disease Flare
    Description
    Time to Crohn's disease flare, where flare is defined as an increase in CDAI ≥ 70 points compared to Week 8 or Early Randomization CDAI, and a CDAI > 220.
    Time Frame
    From Randomization to 48 weeks after Randomization
    Title
    Time to Clinical Remission
    Description
    Clinical remission was defined as CDAI < 150. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI scores generally range from 0 to 600 where higher scores indicate more severe disease.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Time to Steroid-free Remission
    Description
    Steroid-free remission was defined as CDAI < 150 and discontinuation from steroids for at least 8 weeks. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Percentage of Participants in Clinical Remission Over Time
    Description
    Clinical remission was defined as CDAI < 150. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease. Participants with missing data at each time point were counted as non-responders.
    Time Frame
    Baseline and 4 and 8 weeks during the prednisone run-in, and 2, 6, 11, 14, 18, 23, 26, 30, 35, 38, 42, and 48 weeks after Randomization.
    Title
    Percentage of Participants in Steroid-free Remission Over Time
    Description
    Steroid-free remission was defined as CDAI < 150 and discontinuation from steroids for at least 8 weeks. CDAI is a tool used to quantify the symptoms of patients with Crohn's disease. The score includes the frequency of stools, abdominal pain and general well-being as well as the presence of complications, use of antidiarrheals, presence of abdominal mass, hematocrit and weight. CDAI generally ranges from 0 to 600 where higher scores indicate more severe disease. Participants with missing data at each time point were counted as non-responders.
    Time Frame
    11, 14, 18, 23, 26, 30, 35, 38, 42, and 48 weeks after Randomization.
    Title
    Time to All-cause Hospitalization
    Description
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Time to Crohn's Disease-related Hospitalization or Hospitalization Due to Adverse Event Relating to Study Medication
    Description
    Crohn's disease-related hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic for reasons related to Crohn's disease (CD). Hospitalization for adverse events relating to study medication, i.e., prednisone, azathioprine or adalimumab, were according to Investigator's clinical judgment.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Number of Major Crohn's Disease-related Surgeries After Randomization
    Description
    Major Crohn's disease-related intra-abdominal surgery included: bowel resection ostomy by-pass strictureplasty drainage of abdominal or pelvic abscess (surgical drainage or percutaneous drainage by interventional radiology). The following were excluded: debridement exploration laparotomy abdominal surgery for other reason perineal related surgery abscess drainage placement of setons fistulotomy Total parental nutrition (TPN) use
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Number of Crohn's Disease-related Hospitalizations After Randomization
    Description
    Any hospitalization with an overnight stay in hospital/clinic related to Crohn's disease.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Number of All-cause Hospitalizations After Randomization
    Description
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Total Length of Stay in Hospital for All-cause Hospitalizations
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Total Length of Stay in Hospital for Crohn's Disease-related Hospitalizations
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Number of Crohn's Disease-related Surgical Procedures After Randomization
    Description
    The total number of CD-related surgical procedures included major CD-related surgery, debridement, perineal related surgery - abscess drainage, seton placement, fistulotomy, and TPN.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Time to Crohn's Disease-related Hospitalization Due to Emergency
    Description
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic. Hospitalization due to emergency was defined as a hospitalization admitted through the emergency department.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Number of Crohn's Disease-related Hospitalizations Due to Emergency
    Description
    Hospitalization was defined as a visit to hospital/clinic resulting in admission and overnight stay in hospital/clinic. Hospitalization due to emergency was defined as a hospitalization admitted through the emergency department.
    Time Frame
    From Randomization through 48 weeks after Randomization
    Title
    Change in Crohn's Disease Behavior According to Montreal Classification
    Description
    Participants' Crohn's Disease was classified according to the Montreal Classification which classifies CD according to its predominant phenotypic elements (age at diagnosis, location, and disease behavior) based on the results of clinical examination and endoscopy. Disease behavior was classified according to the following: B1 = non-stricturing, non-penetrating; B2 = structuring; B3 = penetrating; P = perianal disease modifier. The change in Montreal Classification is presented in three categories: no change, deterioration, and improvement. Deterioration was defined as an increase in behavior index between 1 and 3, or development of perianal disease. Participants with missing data at Week 48 were classified as deterioration.
    Time Frame
    From Baseline to 48 weeks after Randomization
    Title
    Change From Baseline in High Sensitivity C-Reactive Protein (Hs-CRP) Over Time
    Description
    High sensitivity C-reactive protein was analyzed by a central laboratory.
    Time Frame
    Baseline and 8 weeks during the prednisone run-in, and 11, 23, 35, and 48 weeks after Randomization.
    Title
    Change in Fecal Calprotectin From Baseline to 48 Weeks After Randomization
    Description
    Stool samples were analyzed by a central laboratory for fecal calprotectin qualitative measurement (< 250 or ≥ 250 μg/g). Results are reported for participants in each category at Baseline and 48 weeks after Randomization. Participants with missing data 48 weeks after Randomization were counted as having fecal calprotectin ≥ 250µg/g.
    Time Frame
    Baseline and 48 weeks after Randomization
    Title
    Total Dose of Prednisone
    Description
    The total dose of prednisone each participant received during both the run-in phase and post-randomization treatment phase.
    Time Frame
    From Baseline through 48 weeks after Randomization
    Title
    Change From Baseline in Quality of Life in Inflammatory Bowel Disease Questionnaire (IBDQ) Total Score
    Description
    The IBDQ measures the effects of inflammatory bowel disease on daily function and quality of life. The IBDQ consists of 32 questions which address symptoms as a result of Crohn's disease, feeling in general, and mood. Each question is answered on a scale from 1 (all of the time) to 7 ( none of the time); the total score ranges from 7 (worst) to 224 (best). A positive change from baseline indicates improvement.
    Time Frame
    Baseline and 48 weeks after Randomization
    Title
    Change From Baseline in Work Productivity Activity Index - Crohn's Disease (WPAI:CD)
    Description
    The WPAI:CD questionnaire was used to assess impairments in both paid work and unpaid work due to symptoms of Crohn's Disease. The self-administered questionnaire consisted of 6 questions. Work time missed was defined as the percentage of time absent from work due to Crohn's disease in the past week. Impairment while working is the participant's assessment of the degree to which Crohn's disease affected productivity while working in the past 7 days. Total work productivity impairment takes into account both hours missed due to Crohn's disease symptoms and the patient's assessment of the degree to which Crohn's disease affected their productivity while working. Total activity impairment is the percent impairment of non-work related activities due to Crohn's disease. WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity. A negative change from Baseline indicates improvement.
    Time Frame
    Baseline and 48 weeks after Randomization
    Title
    Change From Baseline in Patient Health Questionnaire - 9 (PHQ9)
    Description
    The PHQ-9 is a 9-item questionnaire for assessing the severity of depression. Each question is answered on a scale from 0 (not at all) to 3 (nearly every day). The total score ranges from 0 to 27, where higher scores indicate more severe depression. A negative change from Baseline score indicates improvement.
    Time Frame
    Baseline and 48 weeks after Randomization
    Title
    Change From Baseline in Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-Fatigue) Score
    Description
    The FACIT-Fatigue scale is a 13-item self-administered questionnaire that assesses both the physical and functional consequences of fatigue. Each question is answered on a 5-point scale, from 0 (not at all) to 4 (very much). The FACIT-Fatigue score ranges from 0 to 52, with higher scores denoting lower levels of fatigue. A positive change from Baseline score indicates an improvement. .
    Time Frame
    Baseline and 48 weeks after Randomization
    Title
    Change From Baseline in Short-Form 36 (SF-36) Physical Component Summary and Mental Component Summary Scores
    Description
    The Medical Outcome Study Short Form 36-Item Health Survey (SF-36), Version 2 is a self-administered instrument that measures the impact of disease on overall quality of life and consists of 36 questions in eight domains (physical function, pain, general and mental health, vitality, social function, physical and emotional health). The physical component summary (PCS) score summarizes the subscales physical functioning, role-physical, bodily pain, and general health. The mental component summary (MCS) score summarizes the subscales vitality, social functioning, role-emotional, and mental health. Each score ranges from 0 to 100 where higher scores indicate a better quality of life. A positive change from Baseline score indicates an improvement.
    Time Frame
    Baseline and 48 weeks after Randomization

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Maximum Age & Unit of Time
    75 Years
    Accepts Healthy Volunteers
    No
    Eligibility Criteria
    Inclusion Criteria: Diagnosis of ileal, colonic (including rectal), or ileocolonic Crohn's disease (CD) confirmed using imaging technology or endoscopy not more than 6 years prior to Baseline. CDAI score of greater than or equal to 220 and less than or equal to 450 at the Baseline visit in participants not receiving prednisone or equivalent at Baseline. CDAI score of greater than or equal to 200 and less than or equal to 450 at the Baseline visit if the participant is receiving prednisone less than or equal to 20 mg or equivalent for at least 7 days before Baseline. CDAI score of greater than 150 and less than or equal to 450 at the Baseline visit if the participant is receiving prednisone higher than 20 mg or equivalent for greater than or equal to 7 days before Baseline Participant or his/her legal representative have voluntarily signed and dated an informed consent approved by and compliant with the requirements of this study protocol which has been approved by an Institutional Review Board (IRB)/Independent Ethics Committee (IEC). Adequate cardiac, renal and hepatic function as determined by the Principal Investigator and demonstrated by Screening laboratory evaluations, questionnaires and physical examination results that do not indicate an abnormal clinical condition which would place the participant at undue risk and thus preclude participation in the study. Participant must be able to self-inject and orally administer study medication or have a designee or Healthcare Professional who can assist Exclusion Criteria: Previous or current biologic use for Crohn's disease or participation in a biologic study Previous or current use of immunomodulators (e.g., methotrexate, azathioprine, 6-mercaptopurine, JAK inhibitor, alpha-integrin) for Crohn's disease or participation in a Crohn's disease study with immunomodulator(s). Current use of immunomodulators for non-Crohn's disease at Baseline. Greater than two previous courses of corticosteroid (systemic corticosteroid) or budesonide) for Crohn's Disease. A course is defined as 1) total duration for burst and taper ≥ 4 weeks and 2) prednisone or equivalent ≥ 40 mg (or budesonide ≥ 9 mg) for at least 2 weeks. Participants with a poorly controlled medical condition such as: uncontrolled diabetes with documented history of recurrent infections, unstable ischemic heart disease, moderate to severe congestive heart failure (New York Heart Association [NYHA] class III or IV), recent cerebrovascular accident and any other condition which, in the opinion of the Investigator or the sponsor, would put the participant at risk by participation in the protocol Participants with positive C. difficile stool assay at Screening.
    Overall Study Officials:
    First Name & Middle Initial & Last Name & Degree
    Anne Robinson, Pharm.D.
    Organizational Affiliation
    AbbVie
    Official's Role
    Study Director

    12. IPD Sharing Statement

    Citations:
    PubMed Identifier
    35919766
    Citation
    Lakatos PL, Kaplan GG, Bressler B, Khanna R, Targownik L, Jones J, Rahal Y, McHugh K, Panaccione R. Cost-Effectiveness of Tight Control for Crohn's Disease With Adalimumab-Based Treatment: Economic Evaluation of the CALM Trial From a Canadian Perspective. J Can Assoc Gastroenterol. 2022 Mar 10;5(4):169-176. doi: 10.1093/jcag/gwac001. eCollection 2022 Aug.
    Results Reference
    derived
    PubMed Identifier
    32224129
    Citation
    Ungaro RC, Yzet C, Bossuyt P, Baert FJ, Vanasek T, D'Haens GR, Joustra VW, Panaccione R, Novacek G, Reinisch W, Armuzzi A, Golovchenko O, Prymak O, Goldis A, Travis SP, Hebuterne X, Ferrante M, Rogler G, Fumery M, Danese S, Rydzewska G, Pariente B, Hertervig E, Stanciu C, Serrero M, Diculescu M, Peyrin-Biroulet L, Laharie D, Wright JP, Gomollon F, Gubonina I, Schreiber S, Motoya S, Hellstrom PM, Halfvarson J, Butler JW, Petersson J, Petralia F, Colombel JF. Deep Remission at 1 Year Prevents Progression of Early Crohn's Disease. Gastroenterology. 2020 Jul;159(1):139-147. doi: 10.1053/j.gastro.2020.03.039. Epub 2020 Mar 26.
    Results Reference
    derived
    PubMed Identifier
    31285357
    Citation
    Panaccione R, Colombel JF, Travis SPL, Bossuyt P, Baert F, Vanasek T, Danalioglu A, Novacek G, Armuzzi A, Reinisch W, Johnson S, Buessing M, Neimark E, Petersson J, Lee WJ, D'Haens GR. Tight control for Crohn's disease with adalimumab-based treatment is cost-effective: an economic assessment of the CALM trial. Gut. 2020 Apr;69(4):658-664. doi: 10.1136/gutjnl-2019-318256. Epub 2019 Jul 8.
    Results Reference
    derived
    PubMed Identifier
    29096949
    Citation
    Colombel JF, Panaccione R, Bossuyt P, Lukas M, Baert F, Vanasek T, Danalioglu A, Novacek G, Armuzzi A, Hebuterne X, Travis S, Danese S, Reinisch W, Sandborn WJ, Rutgeerts P, Hommes D, Schreiber S, Neimark E, Huang B, Zhou Q, Mendez P, Petersson J, Wallace K, Robinson AM, Thakkar RB, D'Haens G. Effect of tight control management on Crohn's disease (CALM): a multicentre, randomised, controlled phase 3 trial. Lancet. 2017 Dec 23;390(10114):2779-2789. doi: 10.1016/S0140-6736(17)32641-7. Epub 2017 Oct 31. Erratum In: Lancet. 2018 Dec 23;390(10114):2768.
    Results Reference
    derived
    Links:
    URL
    http://rxabbvie.com
    Description
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    Efficacy and Safety of Two Treatment Algorithms in Adults With Moderate to Severe Crohn's Disease

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