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TerminatedNCT03341962CALDOSE-1Updated Mar 5, 2024Results posted

Phase 2 Dose-finding IMU-838 for Ulcerative Colitis

A Phase 2 interventional study of IMU-838 and Placebo in Ulcerative Colitis, sponsored by Immunic AG. Terminated at 131 sites in 19 countries. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-03-05.

Sponsored by Immunic AG · Phase 2, Interventional, and Treatment

Why this study was terminated
Considering the efficacy results of the induction phase (allowed use of corticosteroids as concomitant medication) in the study population and since IMU-838 did not show superiority over placebo, the OLE was prematurely closed by the sponsor.
Phase
Phase 2
Study type
Interventional
Enrollment
263
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This is a phase 2, multicenter, randomized, double-blind, placebo-controlled, dose-finding study to evaluate the efficacy and safety of IMU-838 for induction and maintenance therapy with an option for open-label treatment extension in moderate-to-severe ulcerative colitis (CALDOSE-1).

Read the detailed description

The investigational medicinal product (IMP) IMU-838 (vidofludimus calcium) is a new compound that selectively inhibits the human enzyme dihydroorotate dehydrogenase (DHODH). Dihydroorotate dehydrogenase plays a major role in the de-novo pyrimidine synthesis and is specifically expressed at high levels in proliferating or activated lymphocytes. Resting lymphocytes satisfy their pyrimidine requirements through a DHODH-independent salvage pathway. Thus, IMU-838-mediated DHODH inhibition selectively affects activated, rapidly proliferating lymphocytes. The metabolic stress secondary to DHODH inhibition leads to a reduction of pro-inflammatory cytokine release including interleukin (IL)-17 (IL-17A and IL-17F) and interferon gamma (IFNγ), and to an increased apoptosis in activated lymphocytes.

This is a phase 2, multicenter, randomized, double-blind, and placebo-controlled trial in patients with moderate-to-severe UC with an option for open-label treatment extension. The study comprises a blinded induction phase to establish the optimal dose of IMU-838 to induce response and remission, a blinded maintenance phase to evaluate the potential of IMU-838 to maintain remission until Week 50, and an open-label treatment extension arm for all patients who discontinue the blinded phase as scheduled or prematurely, subject to certain restrictions. A subset of patients will undergo a pharmacokinetic (PK) period at the start of the open-label period to establish a full single-dose PK profile.

02

Conditions studied

  • Ulcerative Colitis

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Keywords

  • Ulcerative Colitis
  • IMU-838
  • vidofludimus calcium
03

In context

Colitis, Ulcerative

1,853 studies on the registry are indexed under Colitis, Ulcerative; 472 are open to participants now.

This study's enrollment of 263 is above the median of 70 across 1,236 interventional studies indexed under Colitis, Ulcerative.

Browse Colitis, Ulcerative studies →

Lead sponsor

Immunic AG is the lead sponsor of 7 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Induction phase

  1. Male and female patients, aged 18 - 80 years
  2. UC diagnosed more than 3 months before Screening (Day-30) as documented in the medical chart
  3. Previous treatment failure defined as:

    1. Patient had an inadequate response with, lost response to, or was intolerant to approved or experimental immunomodulators (azathioprine, 6-mercaptopurine, 6-thioguanine, methotrexate, or tofacitinib) or biologics (no more than 2 treatment failures with biologic drugs i.e. anti-tumor necrosis factor α antibodies [infliximab, adalimumab, golimumab and their biosimilars], vedolizumab, or certain experimental antibodies [ustekinumab]); or
    2. Patient had an inadequate response to, was intolerant to, or is dependent (corticosteroid-dependent patients are defined as i) unable to reduce steroids below the equivalent of prednisolone 10 mg/day within 3 months of starting steroids, without recurrent active disease, or ii) who have a relapse within 3 months of stopping steroids.)
  4. Active disease defined as

    a. Mayo stool frequency score of ≥2 at Screening Visit 1 b. Mayo rectal bleeding score of ≥1 at Screening Visit 1 c. modified Mayo endoscopy subscore of ≥2 at the screening flexible sigmoidoscopy (endoscopy assessed by an independent central reader blinded to screening center and patient information)

  5. Endoscopic appearance typical for UC and extending >15 cm from the anal verge as confirmed by an independent central reader (blinded to screening center and patient information)
  6. Laboratory values: >1500 cells/µL, count ≥100 000 /mm3, serum creatinine \<1.5 x (ULN), total , (ALT), and gamma-glutamyl transferase (GGT) \<1.5 x ULN
  7. Female patients must:

    a. Be of non- i.e. surgically sterilized (hysterectomy, bilateral salpingectomy, bilateral oophorectomy at least 6 weeks before Screening) or (where postmenopausal is defined as no menses for 12 months without an alternative medical cause), or

    b. If of child-bearing potential, must have a negative pregnancy test at Screening (blood test) and before the first study drug administration (Day 0 urine test). They must agree not to attempt to become pregnant, must not donate ova, and must use a highly effective method 2 months before Screening, during treatment with IMU-838, and at least 3 months after the last dose of study therapy

    Highly effective forms of birth control are those with a failure rate less than 1% per year and include:

    • oral, intravaginal, or transdermal combined (estrogen and progestogen containing) hormonal contraceptives associated with inhibition of ovulation
    • oral, injectable, or implantable progestogen-only hormonal contraceptives associated with inhibition of ovulation
    • intrauterine device or intrauterine hormone-releasing system
    • bilateral tubal occlusion
    • vasectomized partner (i.e. the patient's male partner has undergone effective surgical sterilization before the female patient entered the clinical trial and he is the sole sexual partner of the female patient during the clinical trial)
    • sexual abstinence (acceptable only if it is the patient's usual form of birth control/lifestyle choice) 8. Male patients must agree not to father a child or to donate sperm starting at Screening and throughout the clinical trial and for 3 months after the last dose of study medication.
  8. Male patients must also either

    • abstain from sexual intercourse with a female partner (acceptable only if it is the patient's usual form of birth control/lifestyle choice), or
    • use adequate barrier contraception during treatment with IMU-383 and for at least 3 months after the last dose of study medication

    For Poland and the UK the following additional requirement apply:

    • if male patients have a female partner of childbearing potential, the partner should use a highly effective contraceptive method as outlined in inclusion criterion 7

    And additionally, for Poland only:

    • if male patients have a pregnant partner, they must use condoms while taking study medication to avoid exposure of the fetus to study medication
  9. Ability to understand and comply with study procedures and restrictions
  10. The patient is legally competent, has been informed of the nature, the scope and the relevance of the study, voluntarily agrees to participation and the study's provisions and has duly signed the form

Maintenance phase

  1. Symptomatic remission achieved at Week 10 or Week 22 of the induction phase

Open-label treatment extension arm

  1. Patient is in the induction phase, had received at least 6 weeks of blinded study treatment and completed the sigmoidoscopy (incl. ) regularly scheduled at Week 10/End of Induction, and has neither reached symptomatic remission nor symptomatic response

OR

Patient is in the extended induction phase, had completed all Week 10 assessments, and has not reached symptomatic remission during or at the end of the extended induction phase, Or Patient is in the maintenance phase and discontinues from the maintenance phase due to symptomatic UC relapse or other reasons with a flexible sigmoidoscopy performed at discontinuation (if the previous sigmoidoscopy had been performed more than 4 weeks before discontinuation)

OR

Patient has completed the maintenance phase as scheduled (including all Week 50 assessments)

Exclusion criteria

EXCLUSION CRITERIA:

Gastrointestinal exclusion criteria

  1. Diagnosis of Crohn's disease, inflammatory bowel disease type unclassified, ischemic colitis, microscopic colitis, radiation colitis or diverticular disease-associated colitis
  2. Ileostomy, colostomy, or known fixed symptomatic stenosis of the intestine
  3. History of colectomy with ileorectal anastomosis or ileal-pouch anal anastomosis or imminent need for colectomy (i.e. colectomy is being planned)
  4. Active therapeutically uncontrollable abscess or toxic megacolon
  5. Malabsorption or short bowel syndrome
  6. History of colorectal cancer or colorectal dysplasia (with the exception of dysplasia in polyps which have been removed)

    Infectious disease exclusion criteria

  7. Clostridium difficile (C. difficile) infection

    • Evidence of, or treatment for C. difficile infection within 30 days before first randomization
    • Positive C. difficile toxin B stool assay during the screening period
  8. Treatment for intestinal pathogens other than C. difficile within 30 days prior to first randomization
  9. Other chronic systemic infections

    • History of chronic systemic infections including but not limited to tuberculosis, (HIV), or C, within 6 months before Screening
    • Positive interferon-gamma release assay (IGRAs) for Mycobacterium tuberculosis at Screening
    • Positive HBsAg (hepatitis B virus surface antigen), HBcAb (hepatitis B core antibody), positive virus and/or HIV-antigen-antibody (HIV-Ag/Ab) test at Screening
  10. Any within 30 days prior to study drug administration except for the influenza vaccine

    Other medical history and concomitant disease exclusion criteria

  11. Known history of nephrolithiasis or underlying condition with a strong association of nephrolithiasis, including hereditary hyperoxaluria or hereditary hyperuricemia
  12. Diagnosis or suspected liver function impairment which may cause, as assessed by the investigator, a potential for fluctuating liver function tests during this trial
  13. Renal impairment i.e. estimated (eGFR) ≤60 mL/min/1.73m²
  14. Serum uric acid levels at Screening >1.2 x (for women >6.8 mg/dL, for men >8.4 mg/dL)
  15. History or clinical diagnosis of gout
  16. Known or suspected Gilbert syndrome
  17. Indirect (unconjugated) ≥1.2 x ULN at Screening (i.e. ≥ 1.1 mg/dL)
  18. Concurrent or prior malignancy within the previous 10 years except for the following: adequately-treated non-melanoma skin cancer and adequately-treated cervical cancer

    Therapy exclusion criteria

  19. Use of any product within 8 weeks or 5 x the respective half-life before first randomization, whatever is longer
  20. Use of the following medications within 2 weeks before first randomization:

    1. Tofacitinib
    2. Methotrexate
    3. Mycophenolate mofetil
    4. Any calcineurin inhibitors (e.g. tacrolimus, cyclosporine, or pimecrolimus)
    5. Oral systemic >20 mg/day prednisolone equivalent including beclomethasone dipropionate (at >5 mg/day) and budesonide (multi-matrix [MMX] at >9 mg/day)
    6. Oral aminosalicylates (e.g. mesalazines) >4 g/day
  21. Use of the following medications within 4 weeks before first randomization:

    1. Use of intravenous corticosteroids
    2. Use of thiopurines including azathioprine, mercaptopurine and 6-thioguanine
    3. Use of any rectal and topical aminosalicylates and/or budesonide
  22. Use of oral systemic corticosteroids ≤20 mg/day prednisolone equivalent including beclomethasone dipropionate (at ≤5 mg/day) and budesonide (MMX at ≤9 mg/day) unless they have been used for at least 4 weeks before first randomization and at a stable dose for at least 2 weeks before first randomization
  23. Oral aminosalicylates (e.g. mesalazines) ≤4 g/day unless they have been used for at least 6 weeks and with a stable dose for at least 3 weeks before first randomization
  24. Use of biologics as follows:

    1. anti-tumor necrosis factor α antibodies (infliximab, adalimumab, golimumab, including their biosimilars) within 4 weeks before first randomization
    2. vedolizumab and ustekinumab within 8 weeks before first randomization
  25. Use of the DHODH inhibitors leflunomide or teriflunomide within 6 months before first randomization
  26. Any use of natalizumab (Tysabri™) within 12 months before first randomization
  27. Use of the following concomitant medications is prohibited at Screening and throughout the duration of the trial:

    • any medication known to significantly increase urinary elimination of uric acid, in particular lesinurad (Zurampic™) as well as uricosuric drugs such as probenecid
    • treatments for any malignancy, in particular irinotecan, paclitaxel, tretinoin, bosutinib, sorafenib, enasidenib, erlotinib, regorafenib, pazopanib and nilotinib
    • any drug significantly restricting water diuresis, in particular vasopressin and vasopressin analogs
    • Rosuvastatin at doses ˃10 mg/day

    General exclusion criteria

  28. History of, or current serious, severe, or unstable (acute or progressive) physical or mental illness, or any medical condition, including laboratory anomalies or renal or hepatic impairment, that may require treatment or would put the patient in jeopardy if he/she was to participate in the study
  29. Known to DHODH inhibitors (teriflunomide, leflunomide) or any ingredient of the investigational product
  30. Pregnancy or breastfeeding
  31. History of drug or alcohol abuse during the past year
  32. Concurrent participation in any other clinical trial using an investigational medicinal product or medical device
  33. An employee of an investigator or sponsor or an immediate relative of an investigator

Exclusion criteria for open-label treatment extension arm

  1. Any ongoing, treatment-emergent (started during the IMU-838 treatment in the blinded treatment arms) adverse event (AE) or laboratory abnormality (including blood chemistry and urinalysis) as assessed by the investigator *
  2. Significant treatment or study non-compliance during induction and/or maintenance phase (as assessed by the investigator), and/or inability or unwillingness to follow instructions by study personnel as assessed by the investigator
  3. Significant protocol deviations during induction and/or maintenance phase that are assessed by the investigator to negatively affect further patient cooperation in this study

    • If treatment-emergent AEs are the reason for exclusion from the open-label extension arm, the eligibility can be re-assessed up to 30 days following the last treatment in the blinded treatment arms.
Terms in these criteria, in plain language(20)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
263 participants (actual)

Study arms

  • Experimental
    10 mg IMU-838 (Induction)

    Two 5 mg tablets once daily of IMU-838 for 10 to 22 weeks depending on symptomatic remission at Weeks 10 or 22. Patients will receive only half of their assigned full dose during the first week of treatment.

    Drug: IMU-838

  • Experimental
    30 mg IMU-838 (Induction)

    Two 15 mg tablets once daily of IMU-838 for 10 to 22 weeks depending on symptomatic remission at Weeks 10 or 22. Patients will receive only half of their assigned full dose during the first week of treatment.

    Drug: IMU-838

  • Experimental
    45 mg IMU-838 (Induction)

    Two 22.5 mg tablets once daily of IMU-838 for 10 to 22 weeks depending on symptomatic remission at Weeks 10 or 22. Patients will receive only half of their assigned full dose during the first week of treatment.

    Drug: IMU-838

  • Placebo comparator
    placebo (Induction)

    The placebo tablets will be identical to the IMU-838 tablets in terms of appearance, constitution of inactive ingredients, and packaging.

    Drug: Placebo

  • Experimental
    10 mg IMU-838 (Maintenance)

    Two 5 mg tablets once daily of IMU-838 until Week 50 or ulcerative colitis relapse.

    Drug: IMU-838

  • Experimental
    30 mg IMU-838 (Maintenance)

    Two 15 mg tablets once daily of IMU-838 until Week 50 or ulcerative colitis relapse.

    Drug: IMU-838

  • Placebo comparator
    placebo (Maintenance)

    The placebo tablets will be identical to the IMU-838 tablets in terms of appearance, constitution of inactive ingredients, and packaging. Patients who have received placebo during the induction phase will be 're-randomized' to continue to receive placebo (in a blinded fashion).

    Drug: Placebo

  • Experimental
    30 mg IMU-838 (Open-label)

    Two 15 mg tablets once daily of IMU-838 or one 30 mg tablet IMU-838 once daily for up to 10 years and up to 3 years in UK sites

    Drug: IMU-838

Interventions

  • IMU-838 tablet

    Also known as: IM90838, vidofludimus calcium

  • DrugPlacebo

    Tablets manufactured to mimic IMU-838 tablets

    Also known as: Placebo (for IMU-838)

06

What researchers measure

Primary outcomes

  1. Induction Phase: Symptomatic Remission and Endoscopic Healing at Week 10

    Composite endpoint: Proportion of patients with both, symptomatic remission (Mayo rectal bleeding subscore = 0, and Mayo stool frequency subscore of 0 or 1) and endoscopic healing (Modified Mayo endoscopy subscore of 0 or 1) at Week 10. All patients who were randomized to 30 mg/day and 45 mg/day were used for the assessment of the primary efficacy endpoint

    Time frame: 10 weeks

Secondary outcomes

  1. Induction Phase: Symptomatic Remission and Endoscopic Healing at Different Doses at Week 10

    Proportion of patients with both symptomatic remission and endoscopic healing at Week 10 (all individual IMU-838 doses were compared with one another and to placebo)

    Time frame: 10 weeks

  2. Induction Phase: Symptomatic Remission

    Proportion of patients achieving symptomatic remission (Mayo rectal bleeding subscore = 0, and Mayo stool frequency subscore of 0 or 1) during the induction phase

    Time frame: 22 weeks

  3. Induction Phase: Time to Achieving Symptomatic Remission

    Time to achieving symptomatic remission (Mayo rectal bleeding subscore = 0 and Mayo stool frequency subscore of 0 or 1) within the extended induction phase

    Time frame: 22 weeks

  4. Induction Phase: Proportion of Patients With Clinical Response

    Proportion of patients with clinical response (decrease from Baseline in the full Mayo score of at least 3 points and at least 30%, with an accompanying decrease in the subscore for rectal bleeding of at least 1 point or an absolute subscore for rectal bleeding of 0 or 1) at Week 10

    Time frame: 10 weeks

  5. Induction Phase: Proportion of Patients With Endoscopic Healing

    Proportion of patients with endoscopic healing (Modified Mayo endoscopy subscore of 0 or 1) at Week 10

    Time frame: 10 weeks

  6. Induction Phase: Proportion of Patients With Symptomatic Response

    Proportion of patients with symptomatic response (≥1-point decrease from Baseline in Mayo PRO-2 score) during the induction phase (including extended induction phase)

    Time frame: 22 weeks

  7. Induction Phase: Full Mayo Score

    Change in full Mayo Score from Baseline to Week 10. The full Mayo score is composed of 4 categories (bleeding, stool frequency, physician assessment, and endoscopic appearance) each rated from 0 to 3 that are added up to give a total score that ranges from 0 to 12. A higher score indicates a worse outcome.

    Time frame: 10 weeks

  8. Induction Phase: Partial Mayo Score

    Change in partial mayo score over 10 or 22 weeks. The partial Mayo score includes only the non-invasive Mayo subscores, ie, stool frequency, rectal bleeding, and physician's global assessment (each rated from 0 to 3 that are added up to give a total score that ranges from 0 to 9). A higher score indicates a worse outcome.

    Time frame: 22 weeks

  9. Induction Phase: Patient Reported Outcome (PRO)-2 Mayo Score

    Change in PRO-2 Mayo score over 10 or 22 weeks. Mayo PRO-2 score, ie, stool frequency and rectal bleeding score each rated from 0 to 3 that are added up to give a total score that ranges from 0 to 6. A higher score indicates a worse outcome.

    Time frame: 22 weeks

  10. Induction Phase: Fecal Calprotectin (fCP)

    Time course of biomarker fCP in stool samples during extended induction phase

    Time frame: 22 weeks

  11. Induction Phase: C-reactive Protein (CRP)

    Time course of biomarker CRP in blood samples during extended induction phase

    Time frame: 22 weeks

  12. Safety: Adverse Events

    Incidence and Severity of AEs during the induction and maintenance phases

    Time frame: 50 weeks

  13. Safety: Number of Participants With Clinically Significant Findings During Physical Examination

    The emergence of any clinically significant findings compared to screening captured during the induction and maintenance phases

    Time frame: 50 weeks

  14. Safety: Body Weight

    Changes in body weight during the induction and maintenance phases

    Time frame: 50 weeks

  15. Safety: Blood Pressure

    Changes in blood pressure (mm Hg) during the induction and maintenance phases

    Time frame: 50 weeks

  16. Safety: Heart Rate

    Changes in heart rate (beats per minute) during the induction and maintenance phases

    Time frame: 50 weeks

  17. Safety: 12-lead Electrocardiogram (ECG)

    Number of patients with clinically significant changes in ECG

    Time frame: 50 weeks

  18. Safety: Hematology

    Number of participants with abnormal hematology laboratory values (treatment-emergent adverse events \[TEAEs\] related to hematological abnormalities)

    Time frame: up to Week 50

  19. Safety: Blood Chemistry

    Number of participants with abnormal blood chemistry laboratory values (TEAES related to clinical chemistry abnormalities)

    Time frame: 50 weeks

  20. Safety: Coagulation

    Number of participants with clinically significant abnormal coagulation laboratory values

    Time frame: 10 weeks

  21. Safety: Urinalysis

    Number of participants with abnormal urinalysis laboratory values (TEAEs related to urinalysis)

    Time frame: 50 weeks

  22. Safety: Micro Ribonucleic Acid-122 Expression

    Micro ribonucleic acid-122 (miR-122) expression (before first dose and 24 hours after first dose - foldchange of normalized expression values )

    Time frame: 24 hours

  23. Pharmacodynamics (PK): IMU-838 Trough Level

    Measurement of pre-dose (trough) blood plasma levels of IMU-838 throughout the induction period

    Time frame: Day 0, Day 1, Day 7, Week 2 and Week 10

  24. PK: IMU-838 Plasma Level

    Measurement of post-dose blood plasma levels of IMU-838 at Week 2

    Time frame: 2 weeks

  25. PK: Area Under the Drug Concentration-time Curve (AUC) From Time Zero to 24 Hours (AUC0-24h)

    Single-dose PK measurement of AUC0-24h in a subset of patients in the open-label phase

    Time frame: pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

  26. PK: AUC Time Zero to Last Measurable Concentration (AUC0-t)

    Single-dose PK measurement of AUC0-t in a subset of patients in the open-label phase

    Time frame: pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

  27. PK: AUC Time Zero to Infinity (AUC0-inf)

    Single-dose PK measurement of AUC0-inf in a subset of patients in the open-label phase

    Time frame: pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

  28. PK: Maximum Plasma Concentration (Cmax)

    Single-dose PK measurement of Cmax in a subset of patients in the open-label phase

    Time frame: pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

  29. PK: Time to Cmax (Tmax)

    Single-dose PK measurement of Tmax in a subset of patients in the open-label phase

    Time frame: pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

  30. Maintenance Phase: Proportion of Patients in Symptomatic Remission

    Proportion of patients in symptomatic remission (Mayo rectal bleeding subscore = 0, and Mayo stool frequency subscore of 0 or 1) by visit up to Week 50 in maintenance phase

    Time frame: Week 14, Week 30, Week 50

  31. Maintenance Phase: Mayo PRO-2 Score

    Time course of Mayo PRO-2 score until Week 50. Mayo patient-reported outcome score, ie, stool frequency and rectal bleeding score each rated from 0 to 3 3 that are added up to give a total score that ranges from 0 to 6. A higher score indicates a worse outcome.

    Time frame: 50 weeks

  32. Maintenance Phase: Time to Relapse

    Time to symptomatic ulcerative colitis (UC) relapse

    Time frame: 50 weeks

  33. Maintenance Phase: Proportion of Patients Without Relapse

    Proportion of patients without symptomatic UC relapse until Week 50

    Time frame: 50 weeks

  34. Maintenance Phase: fCP

    Timecourse of biomarker fCP in stool samples

    Time frame: 50 weeks

  35. Maintenance Phase: CRP

    Timecourse of biomarker CRP in blood samples

    Time frame: 50 weeks

  36. Maintenance Phase: Proportion of Patients With Endoscopic Healing

    Proportion of patients with endoscopic healing (Modified Mayo endoscopy subscore of 0 or 1) at Week 50 of maintenance phase

    Time frame: 50 weeks

  37. Maintenance Phase: Proportion of Patients With Microscopic Healing

    Proportion of patients with microscopic healing (Geboes score of =\< 3.1) at Week 50 of maintenance phase

    Time frame: 50 weeks

  38. Maintenance Phase: Corticosteroid-free Remission

    Corticosteroid-free clinical remission (clinical remission and no receipt of systemic or local corticosteroids) at Week 50 in patients receiving corticosteroids at Baseline

    Time frame: 50 weeks

  39. Open-label Phase: Symptom Control

    Proportion of patients with symptom control

    Time frame: up to 4 years

  40. Open-label Phase: fCP

    Timecourse of biomarker fCP in stool samples. Visits were scheduled every 4 weeks (+/-7 days) until 50 weeks of total study participation (ie induction + extended induction, if applicable, maintenance + open-label part) and every 10 weeks (+/-7 days) thereafter. The visit schedule in the OLE after 50 weeks of overall study treatment was changed from a 10-week schedule to a 24 week (+/-14 days) schedule after Protocol Version 6.0 came into force. Because the study was terminated early, EoT varied between patients depending on when patients entered the study and the time a patient participated in the induction and maintenance phases before switching to the OLE.

    Time frame: Baseline, Week 4 OLE, Week 8 OLE, EoT up to 4 years (variable)

  41. Open-label Phase: CRP

    Timecourse of biomarker CRP in blood samples. Visits were scheduled every 4 weeks (+/-7 days) until 50 weeks of total study participation (ie induction + extended induction, if applicable, maintenance + open-label part) and every 10 weeks (+/-7 days) thereafter. The visit schedule in the OLE after 50 weeks of overall study treatment was changed from a 10-week schedule to a 24 week (+/-14 days) schedule after Protocol Version 6.0 came into force. Because the study was terminated early, EoT varied between patients depending on when patients entered the study and the time a patient participated in the induction and maintenance phases before switching to the OLE.

    Time frame: Baseline, Week 4 OLE, Week 8 OLE, Week 10 OLE, Week 12 OLE, Week 16 OLE, Week 20 OLE, Week 24 OLE, Week 28 OLE, Week 32 or 38 OLE (depending if entry was after extended induction phase), EoT up to 4 years (variable)

07

Results

Posted Mar 5, 2024

Participant flow

The study had 3 phases, induction, maintenance and open-label. Patients who achieved symptomatic remission at Week 10 or 22 (extended) of induction phase (IP) could proceed to maintenance phase (MP). Patients who were treated for at least 6 weeks in the induction phase and fulfilled further eligibility criteria could proceed into the open label treatment extension phase (OLE).

Induction Phase
Participant flow — Induction Phase
Milestone10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-383 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)
Started676766630000
Completed534850520000
Not completed141916110000
Maintenance Phase
Participant flow — Maintenance Phase
Milestone10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-383 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)
Started00004540270
Completed00003529210
Not completed0000101160
Open-label Phase
Participant flow — Open-label Phase
Milestone10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-383 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)
Started0000000190
Completed00000000
Not completed0000000190

Outcome measures

PrimaryInduction Phase: Symptomatic Remission and Endoscopic Healing at Week 10

Composite endpoint: Proportion of patients with both, symptomatic remission (Mayo rectal bleeding subscore = 0, and Mayo stool frequency subscore of 0 or 1) and endoscopic healing (Modified Mayo endoscopy subscore of 0 or 1) at Week 10. All patients who were randomized to 30 mg/day and 45 mg/day were used for the assessment of the primary efficacy endpoint

Time frame:
10 weeks
Reported as:
Count of participants · Participants
Induction Phase: Symptomatic Remission and Endoscopic Healing at Week 10
ParticipantsCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)
Induction Phase: Symptomatic Remission and Endoscopic Healing at Week 10168
Statistical analysis
  • Combined IMU-838 (30 or 45 mg IMU-838, Induction Phase) vs Placebo (Induction Phase) · Cochran-Mantel-Haenszel · p = 0.5836 · Odds ratio (or): 1.01881-sided exact test adjusted for stratification factors (prior use of any biologics and concurrent use of corticosteroids), α=0.097
SecondaryInduction Phase: Symptomatic Remission and Endoscopic Healing at Different Doses at Week 10

Proportion of patients with both symptomatic remission and endoscopic healing at Week 10 (all individual IMU-838 doses were compared with one another and to placebo)

Time frame:
10 weeks
Reported as:
Count of participants · Participants
Induction Phase: Symptomatic Remission and Endoscopic Healing at Different Doses at Week 10
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)
Induction Phase: Symptomatic Remission and Endoscopic Healing at Different Doses at Week 1010798
SecondaryInduction Phase: Symptomatic Remission

Proportion of patients achieving symptomatic remission (Mayo rectal bleeding subscore = 0, and Mayo stool frequency subscore of 0 or 1) during the induction phase

Time frame:
22 weeks
Reported as:
Count of participants · Participants
Induction Phase: Symptomatic Remission
ParticipantsCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Induction Phase: Symptomatic Remission5628382531
SecondaryInduction Phase: Time to Achieving Symptomatic Remission

Time to achieving symptomatic remission (Mayo rectal bleeding subscore = 0 and Mayo stool frequency subscore of 0 or 1) within the extended induction phase

Time frame:
22 weeks
Reported as:
Mean · days
Induction Phase: Time to Achieving Symptomatic Remission
daysCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Induction Phase: Time to Achieving Symptomatic Remission108.8 ± 5.5119.6 ± 7.198 ± 7.7115.9 ± 7.4101.9 ± 8.1
SecondaryInduction Phase: Proportion of Patients With Clinical Response

Proportion of patients with clinical response (decrease from Baseline in the full Mayo score of at least 3 points and at least 30%, with an accompanying decrease in the subscore for rectal bleeding of at least 1 point or an absolute subscore for rectal bleeding of 0 or 1) at Week 10

Time frame:
10 weeks
Reported as:
Count of participants · Participants
Induction Phase: Proportion of Patients With Clinical Response
ParticipantsCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Induction Phase: Proportion of Patients With Clinical Response5027312327
SecondaryInduction Phase: Proportion of Patients With Endoscopic Healing

Proportion of patients with endoscopic healing (Modified Mayo endoscopy subscore of 0 or 1) at Week 10

Time frame:
10 weeks
Reported as:
Count of participants · Participants
Induction Phase: Proportion of Patients With Endoscopic Healing
ParticipantsCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Induction Phase: Proportion of Patients With Endoscopic Healing2812181414
SecondaryInduction Phase: Proportion of Patients With Symptomatic Response

Proportion of patients with symptomatic response (≥1-point decrease from Baseline in Mayo PRO-2 score) during the induction phase (including extended induction phase)

Time frame:
22 weeks
Reported as:
Count of participants · Participants
Induction Phase: Proportion of Patients With Symptomatic Response
ParticipantsCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Induction Phase: Proportion of Patients With Symptomatic Response10149555249
SecondaryInduction Phase: Full Mayo Score

Change in full Mayo Score from Baseline to Week 10. The full Mayo score is composed of 4 categories (bleeding, stool frequency, physician assessment, and endoscopic appearance) each rated from 0 to 3 that are added up to give a total score that ranges from 0 to 12. A higher score indicates a worse outcome.

Time frame:
10 weeks
Reported as:
Mean · score on a scale
Induction Phase: Full Mayo Score
score on a scaleCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Baseline9.1 ± 1.49.1 ± 1.49.0 ± 1.69.1 ± 1.49.1 ± 1.4
Change from Baseline to Week 10-2.6 ± 2.7-2.3 ± 2.7-3.0 ± 2.6-2.5 ± 2.7-2.8 ± 2.7
SecondaryInduction Phase: Partial Mayo Score

Change in partial mayo score over 10 or 22 weeks. The partial Mayo score includes only the non-invasive Mayo subscores, ie, stool frequency, rectal bleeding, and physician's global assessment (each rated from 0 to 3 that are added up to give a total score that ranges from 0 to 9). A higher score indicates a worse outcome.

Time frame:
22 weeks
Reported as:
Mean · score on a scale
Induction Phase: Partial Mayo Score
score on a scaleCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Baseline (all patients)6.6 ± 1.26.5 ± 1.16.4 ± 1.46.5 ± 1.26.6 ± 1.2
Change from Baseline to Week 10 (all patients)-2.2 ± 2.2-1.9 ± 2.2-2.4 ± 2.2-1.9 ± 2.0-2.4 ± 2.3
Baseline (only patients who entered extended induction phase)6.6 ± 1.26.5 ± 1.06.6 ± 1.36.6 ± 1.26.7 ± 1.2
Change from Baseline to Week 22 (only patients who entered extended induction phase)-3.5 ± 2.1-3.6 ± 2.2-3.4 ± 2.3-3.7 ± 2.2-3.3 ± 2.0
SecondaryInduction Phase: Patient Reported Outcome (PRO)-2 Mayo Score

Change in PRO-2 Mayo score over 10 or 22 weeks. Mayo PRO-2 score, ie, stool frequency and rectal bleeding score each rated from 0 to 3 that are added up to give a total score that ranges from 0 to 6. A higher score indicates a worse outcome.

Time frame:
22 weeks
Reported as:
Mean · score on a scale
Induction Phase: Patient Reported Outcome (PRO)-2 Mayo Score
score on a scaleCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Baseline (all patients)4.3 ± 1.04.3 ± 0.94.1 ± 1.24.3 ± 1.04.3 ± 1.0
Change from Baseline to Week 10 (all patients)-1.6 ± 1.7-1.4 ± 1.7-1.7 ± 1.6-1.4 ± 1.6-1.8 ± 1.7
Baseline (only patients who entered extended induction phase)4.3 ± 1.04.3 ± 0.84.2 ± 1.14.3 ± 1.14.3 ± 1.0
Change from Baseline to Week 22 (only patients who entered extended induction phase)-2.5 ± 1.6-2.6 ± 1.6-2.4 ± 1.8-2.7 ± 1.6-2.3 ± 1.6
SecondaryInduction Phase: Fecal Calprotectin (fCP)

Time course of biomarker fCP in stool samples during extended induction phase

Time frame:
22 weeks
Reported as:
Median · mg/kg
Induction Phase: Fecal Calprotectin (fCP)
mg/kgCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Day 0 (all patients)799.0 (9 to 10437)899.0 (39 to 5323)697.0 (3 to 4064)711.5 (55 to 10437)992.0 (9 to 8310)
Week 10 (all patients290.0 (13 to 6731)405.0 (9 to 17819)384.0 (3 to 19955)301.5 (13 to 5269)265.0 (17 to 6731)
Day 0 (Only patients who entered extended induction phase)616.5 (9 to 10437)1039.0 (46 to 5323)603.0 (60 to 2536)547.0 (115 to 10437)856.5 (9 to 8310)
Week 22 (Only patients who entered extended induction phase)332.0 (6 to 6699)387.0 (38 to 4183)353.0 (20 to 1515)314.0 (6 to 1124)576.0 (16 to 6699)
SecondaryInduction Phase: C-reactive Protein (CRP)

Time course of biomarker CRP in blood samples during extended induction phase

Time frame:
22 weeks
Reported as:
Median · mg/L
Induction Phase: C-reactive Protein (CRP)
mg/LCombined IMU-838 (30 or 45 mg IMU-838, Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Day 0 (all patients)3.50 (0.3 to 122.3)3.2 (0.3 to 81.1)5.30 (0.3 to 79.8)3.70 (0.3 to 122.3)3.50 (0.3 to 80.0)
Week 10 (all patients)3.40 (0.3 to 33.9)1.85 (0.3 to 50.8)4.00 (0.3 to 46.0)3.50 (0.3 to 26.3)2.75 (0.3 to 33.9)
Day 0 (Only patients who entered extended induction phase)3.65 (0.3 to 113.8)2.40 (0.3 to 78.6)5.55 (0.3 to 61.4)3.05 (0.3 to 113.8)7.85 (0.3 to 80.0)
Week 22 (Only patients who entered extended induction phase)2.70 (0.3 to 23.7)1.25 (0.3 to 69.9)2.80 (0.3 to 17.8)2.00 (0.3 to 13.0)2.75 (0.3 to 23.7)
SecondarySafety: Adverse Events

Incidence and Severity of AEs during the induction and maintenance phases

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Safety: Adverse Events
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Any TEAE28303023161612
Any mild TEAE2321241511128
Any moderate TEAE7101113574
Any severe TEAE2320220
SecondarySafety: Number of Participants With Clinically Significant Findings During Physical Examination

The emergence of any clinically significant findings compared to screening captured during the induction and maintenance phases

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Safety: Number of Participants With Clinically Significant Findings During Physical Examination
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenace Phase)30 mg IMU-383 (Maintenance Phase)Placebo (Maintenance Phase)
Safety: Number of Participants With Clinically Significant Findings During Physical Examination0340212
SecondarySafety: Body Weight

Changes in body weight during the induction and maintenance phases

Time frame:
50 weeks
Reported as:
Mean · kg
Safety: Body Weight
kg10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Induction phase - Day 073.881 ± 19.47972.436 ± 15.34873.959 ± 13.91570.141 ± 15.754———
Induction phase - Week 1073.747 ± 20.03071.457 ± 14.52275.094 ± 14.14871.437 ± 15.998———
Induction phase - Week 2270.310 ± 13.64074.689 ± 15.14375.188 ± 18.20269.635 ± 14.425———
Maintenance phase - Baseline————74.431 ± 13.08170.490 ± 16.48072.441 ± 13.259
Maintenance phase - Week 50————75.743 ± 13.45273.986 ± 18.06970.310 ± 11.458
SecondarySafety: Blood Pressure

Changes in blood pressure (mm Hg) during the induction and maintenance phases

Time frame:
50 weeks
Reported as:
Mean · mmHg
Safety: Blood Pressure
mmHg10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Induction phase - Day 0 (systolic blood pressure)123.2 ± 14.2125.1 ± 12.8123.2 ± 11.4121.9 ± 11.8———
Induction phase - Week 10 (systolic blood pressure)123.1 ± 11.4123.8 ± 13.2121.7 ± 9.7122.0 ± 12.8———
Induction phase - Week 22 (systolic blood pressure)118.3 ± 10.2126.7 ± 12.3119.8 ± 6.6121.8 ± 12.3———
Induction phase - Day 0 (diastolic blood pressure)76.2 ± 10.878.1 ± 10.379.5 ± 9.474.9 ± 8.2———
Induction phase - Week 10 (diastolic blood pressure)76.1 ± 9.179.5 ± 9.277.3 ± 7.975.5 ± 7.9———
Induction phase - Week 22 (diastolic blood pressure)72.0 ± 7.677.6 ± 7.475.4 ± 6.574.2 ± 9.8———
Maintenance phase - baseline (systolic blood pressure)————121.3 ± 10.6123.7 ± 12.2124.1 ± 13.0
Maintenance phase - Week 50 (systolic blood pressure)————122.0 ± 13.0125.3 ± 14.3122.6 ± 9.2
Maintenance phase - baseline (diastolic blood pressure)————75.2 ± 8.776.5 ± 9.575.1 ± 8.8
Maintenance phase - Week 50 (diastolic blood pressure————76.5 ± 9.977.1 ± 9.074.7 ± 6.4
SecondarySafety: Heart Rate

Changes in heart rate (beats per minute) during the induction and maintenance phases

Time frame:
50 weeks
Reported as:
Mean · beats per minute
Safety: Heart Rate
beats per minute10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Induction phase - Day 074.7 ± 13.677.4 ± 12.373.6 ± 8.973.5 ± 9.0———
Induction phase - Week 1076.1 ± 13.974.1 ± 10.473.6 ± 9.073.9 ± 10.8———
Induction phase - Week 2269.6 ± 13.071.9 ± 9.171.6 ± 6.270.8 ± 7.1———
Maintenance phase -Baseline————73.0 ± 9.273.4 ± 7.572.4 ± 9.7
Maintenance phase - Week 50————73.0 ± 8.673.2 ± 6.575.4 ± 10.7
SecondarySafety: 12-lead Electrocardiogram (ECG)

Number of patients with clinically significant changes in ECG

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Safety: 12-lead Electrocardiogram (ECG)
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Safety: 12-lead Electrocardiogram (ECG)0100000
SecondarySafety: Hematology

Number of participants with abnormal hematology laboratory values (treatment-emergent adverse events \[TEAEs\] related to hematological abnormalities)

Time frame:
up to Week 50
Reported as:
Count of participants · Participants
Safety: Hematology
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Anemia3643122
Leukopenia1100000
Neutropenia1000000
Thrombocytosis0101001
Hemoglobin decreased0290100
Platelet count increased0100000
Leukocytosis0000011
Microcytic anemia0000010
Neutrophil count increased0000001
White blood cell count increased0000001
SecondarySafety: Blood Chemistry

Number of participants with abnormal blood chemistry laboratory values (TEAES related to clinical chemistry abnormalities)

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Safety: Blood Chemistry
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-383 (Maintenance Phase)Placebo (Maintenance Phase)
Alanine transferase increased2001000
Amylase increased0000100
Aspartate aminotransferase increased0000001
Blood bilirubin increased0001000
Blood bilirubin unconjugated increased0001000
Blood calcium decreased0001000
Blood cholesterol increased0100000
Blood creatinine increased0000001
Blood creatine phosphokinase MB increased1100000
Blood creatine phosphokinase increased1200001
Blood potassium increased1011000
Blood triglycerides increased0101000
C-reactive protein increased0210000
Fecal calprotectin increased0000100
Gamma-glutamyltransferase increased0000001
Hepatic enzyme increased0011001
Hyperbilirubinemia0100000
Hyperkalemia0010000
Hyperlipasemia0001000
Hypertriglyceridemia0100000
Hyperuricemia0010000
Hypokalemia1000000
Hypophosphatasemia0001001
Liver function test abnormal1000000
Lipase increased0000111
SecondarySafety: Coagulation

Number of participants with clinically significant abnormal coagulation laboratory values

Time frame:
10 weeks
Reported as:
Count of participants · Participants
Safety: Coagulation
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)
Safety: Coagulation0000
SecondarySafety: Urinalysis

Number of participants with abnormal urinalysis laboratory values (TEAEs related to urinalysis)

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Safety: Urinalysis
Participants10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Blood urine present0000010
Creatinine urine increased0010000
Crystalluria0200000
Hematuria0051020
Hemorrhage urinary tract0010000
Hyperoxaluria0010000
Hyperuricosuria0010000
Ketonuria0000010
Micturition urgency0001000
Proteinuria0000010
Red blood cells urine positive0110001
Renal colic0010000
Renal Cyst0100000
SecondarySafety: Micro Ribonucleic Acid-122 Expression

Micro ribonucleic acid-122 (miR-122) expression (before first dose and 24 hours after first dose - foldchange of normalized expression values )

Time frame:
24 hours
Reported as:
Mean · fold change
Safety: Micro Ribonucleic Acid-122 Expression
fold change10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)
Safety: Micro Ribonucleic Acid-122 Expression2.0276 ± 2.77473.5573 ± 10.88521.8842 ± 3.53462.5739 ± 5.2723
SecondaryPharmacodynamics (PK): IMU-838 Trough Level

Measurement of pre-dose (trough) blood plasma levels of IMU-838 throughout the induction period

Time frame:
Day 0, Day 1, Day 7, Week 2 and Week 10
Reported as:
Median · µg/mL
Pharmacodynamics (PK): IMU-838 Trough Level
µg/mL10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
Day 00.00 (0.00 to 0.00)0.00 (0.00 to 7.34)0.00 (0.00 to 0.00)
Day 10.30 (0.00 to 1.74)0.94 (0.00 to 3.75)1.41 (0.00 to 5.63)
Day 70.58 (0.00 to 2.13)1.71 (0.00 to 8.82)2.77 (0.70 to 8.29)
Week 20.97 (0.00 to 3.00)3.24 (0.00 to 8.54)5.23 (1.30 to 11.0)
Week 101.17 (0.00 to 3.43)3.32 (0.00 to 9.32)5.03 (0.93 to 11.80)
SecondaryPK: IMU-838 Plasma Level

Measurement of post-dose blood plasma levels of IMU-838 at Week 2

Time frame:
2 weeks
Reported as:
Median · µg/mL
PK: IMU-838 Plasma Level
µg/mL10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)
PK: IMU-838 Plasma Level2.30 (0.00 to 4.23)6.05 (0.00 to 12.40)10.70 (1.68 to 23.40)
SecondaryPK: Area Under the Drug Concentration-time Curve (AUC) From Time Zero to 24 Hours (AUC0-24h)

Single-dose PK measurement of AUC0-24h in a subset of patients in the open-label phase

Time frame:
pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

No measurements were reported for this outcome.

SecondaryPK: AUC Time Zero to Last Measurable Concentration (AUC0-t)

Single-dose PK measurement of AUC0-t in a subset of patients in the open-label phase

Time frame:
pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

No measurements were reported for this outcome.

SecondaryPK: AUC Time Zero to Infinity (AUC0-inf)

Single-dose PK measurement of AUC0-inf in a subset of patients in the open-label phase

Time frame:
pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

No measurements were reported for this outcome.

SecondaryPK: Maximum Plasma Concentration (Cmax)

Single-dose PK measurement of Cmax in a subset of patients in the open-label phase

Time frame:
pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

No measurements were reported for this outcome.

SecondaryPK: Time to Cmax (Tmax)

Single-dose PK measurement of Tmax in a subset of patients in the open-label phase

Time frame:
pre-dose, 1, 2, 3, 4, 5, 6 hours post PK dose; 24 hours post PK dose; 48 hours post PK dose; 72 hours post PK dose

No measurements were reported for this outcome.

SecondaryMaintenance Phase: Proportion of Patients in Symptomatic Remission

Proportion of patients in symptomatic remission (Mayo rectal bleeding subscore = 0, and Mayo stool frequency subscore of 0 or 1) by visit up to Week 50 in maintenance phase

Time frame:
Week 14, Week 30, Week 50
Reported as:
Count of participants · Participants
Maintenance Phase: Proportion of Patients in Symptomatic Remission
Participants10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Week 1416147
Week 30332319
Week 50272416
SecondaryMaintenance Phase: Mayo PRO-2 Score

Time course of Mayo PRO-2 score until Week 50. Mayo patient-reported outcome score, ie, stool frequency and rectal bleeding score each rated from 0 to 3 3 that are added up to give a total score that ranges from 0 to 6. A higher score indicates a worse outcome.

Time frame:
50 weeks
Reported as:
Mean · score on a scale
Maintenance Phase: Mayo PRO-2 Score
score on a scale10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance phase Baseline0.8 ± 0.50.9 ± 0.80.7 ± 0.5
Change from Baseline to Week 500.1 ± 0.90.2 ± 1.10.4 ± 0.9
SecondaryMaintenance Phase: Time to Relapse

Time to symptomatic ulcerative colitis (UC) relapse

Time frame:
50 weeks
Reported as:
Mean · days
Maintenance Phase: Time to Relapse
days10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance Phase: Time to Relapse231.7 ± 10221.9 ± 16.2186.6 ± 10.2
SecondaryMaintenance Phase: Proportion of Patients Without Relapse

Proportion of patients without symptomatic UC relapse until Week 50

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Maintenance Phase: Proportion of Patients Without Relapse
Participants10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance Phase: Proportion of Patients Without Relapse322418
SecondaryMaintenance Phase: fCP

Timecourse of biomarker fCP in stool samples

Time frame:
50 weeks
Reported as:
Median · mg/kg
Maintenance Phase: fCP
mg/kg10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance phase Baseline256.5 (3 to 1948)207.0 (3 to 16359)335.0 (9 to 4183)
Week 1499.0 (16 to 611)145.0 (12 to 2386)353.0 (19 to 2529)
Week 30149.0 (3 to 3169)217.0 (22 to 2431)210.0 (2 to 1694)
Week 50181.0 (11 to 1931)147.0 (27 to 5777)364.0 (18 to 1617)
SecondaryMaintenance Phase: CRP

Timecourse of biomarker CRP in blood samples

Time frame:
50 weeks
Reported as:
Median · mg/L
Maintenance Phase: CRP
mg/L10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance phase Baseline1.30 (0.3 to 105.7)2.50 (0.3 to 38.2)1.10 (0.3 to 5.2)
Week 141.10 (0.3 to 19.2)1.50 (0.3 to 23.4)1.90 (0.3 to 7.6)
Week 301.30 (0.3 to 48.3)2.05 (0.3 to 172.3)1.00 (0.3 to 21.0)
Week 501.10 (0.3 to 12.2)3.60 (0.3 to 56.0)1.95 (0.3 to 18.6)
SecondaryMaintenance Phase: Proportion of Patients With Endoscopic Healing

Proportion of patients with endoscopic healing (Modified Mayo endoscopy subscore of 0 or 1) at Week 50 of maintenance phase

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Maintenance Phase: Proportion of Patients With Endoscopic Healing
Participants10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance Phase: Proportion of Patients With Endoscopic Healing15196
SecondaryMaintenance Phase: Proportion of Patients With Microscopic Healing

Proportion of patients with microscopic healing (Geboes score of =\< 3.1) at Week 50 of maintenance phase

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Maintenance Phase: Proportion of Patients With Microscopic Healing
Participants10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance Phase: Proportion of Patients With Microscopic Healing252012
SecondaryMaintenance Phase: Corticosteroid-free Remission

Corticosteroid-free clinical remission (clinical remission and no receipt of systemic or local corticosteroids) at Week 50 in patients receiving corticosteroids at Baseline

Time frame:
50 weeks
Reported as:
Count of participants · Participants
Maintenance Phase: Corticosteroid-free Remission
Participants10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)
Maintenance Phase: Corticosteroid-free Remission10165
SecondaryOpen-label Phase: Symptom Control

Proportion of patients with symptom control

Time frame:
up to 4 years
Reported as:
Count of participants · Participants
Open-label Phase: Symptom Control
Participants30 mg IMU-838 (Open-label Phase)
Open-label Phase: Symptom Control55
SecondaryOpen-label Phase: fCP

Timecourse of biomarker fCP in stool samples. Visits were scheduled every 4 weeks (+/-7 days) until 50 weeks of total study participation (ie induction + extended induction, if applicable, maintenance + open-label part) and every 10 weeks (+/-7 days) thereafter. The visit schedule in the OLE after 50 weeks of overall study treatment was changed from a 10-week schedule to a 24 week (+/-14 days) schedule after Protocol Version 6.0 came into force. Because the study was terminated early, EoT varied between patients depending on when patients entered the study and the time a patient participated in the induction and maintenance phases before switching to the OLE.

Time frame:
Baseline, Week 4 OLE, Week 8 OLE, EoT up to 4 years (variable)
Reported as:
Median · mg/kg
Open-label Phase: fCP
mg/kg30 mg IMU-838 (Open-label Phase)
Entry in OLE after (extended) induction phase - Baseline542.0 (6 to 19955)
Entry in OLE after (extended) induction phase - Visit 1 (Week 4 OLE)557.0 (98 to 4774)
Entry in OLE after (extended) induction phase - Visit 2 (Week 8 OLE)467.0 (55 to 2271)
Entry in OLE after (extended) induction phase - end of treatment (up to 4 years, variable)234.0 (5 to 9906)
Entry in OLE after maintenance phase - Baseline221.0 (8 to 5777)
Entry in OLE after maintenance phase - end of treatment (up to 4 years, variable)168.0 (3 to 5256)
SecondaryOpen-label Phase: CRP

Timecourse of biomarker CRP in blood samples. Visits were scheduled every 4 weeks (+/-7 days) until 50 weeks of total study participation (ie induction + extended induction, if applicable, maintenance + open-label part) and every 10 weeks (+/-7 days) thereafter. The visit schedule in the OLE after 50 weeks of overall study treatment was changed from a 10-week schedule to a 24 week (+/-14 days) schedule after Protocol Version 6.0 came into force. Because the study was terminated early, EoT varied between patients depending on when patients entered the study and the time a patient participated in the induction and maintenance phases before switching to the OLE.

Time frame:
Baseline, Week 4 OLE, Week 8 OLE, Week 10 OLE, Week 12 OLE, Week 16 OLE, Week 20 OLE, Week 24 OLE, Week 28 OLE, Week 32 or 38 OLE (depending if entry was after extended induction phase), EoT up to 4 years (variable)
Reported as:
Median · mg/L
Open-label Phase: CRP
mg/L30 mg IMU-838 (Open-label Phase)
Entry in OLE after (extended) induction phase - Baseline5.20 (0.3 to 69.9)
Entry in OLE after (extended) induction phase - Visit 1 (Week 4 OLE)3.30 (0.3 to 41.8)
Entry in OLE after (extended) induction phase - Visit 2 (Week 8 OLE)2.30 (0.3 to 71.9)
Entry in OLE after (extended) induction phase - Visit 3 (Week 12 OLE)2.40 (0.3 to 37.3)
Entry in OLE after (extended) induction phase - Visit 4 (Week 16 OLE)2.60 (0.3 to 178.9)
Entry in OLE after (extended) induction phase - Visit 5 (Week 20 OLE)3.60 (0.3 to 46.1)
Entry in OLE after (extended) induction phase - Visit 6 (Week 24 OLE)3.40 (0.3 to 26.0)
Entry in OLE after (extended) induction phase - Visit 7 (Week 28 OLE)2.80 (0.3 to 39.5)
Entry in OLE after (extended) induction phase - Visit 8 (Week 32 or 38 OLE)2.20 (0.3 to 49.9)
Entry in OLE after (extended) induction phase - end of treatment (up to 4 years, variable)2.45 (0.3 to 46.5)
Entry in OLE after maintenance phase - Baseline1.90 (0.3 to 56.0)
Entry in OLE after maintenance phase - Visit 1 (Week 10 OLE)1.55 (0.3 to 79.8)
Entry in OLE after maintenance phase - Visit 2 (Week 20 OLE)1.25 (0.3 to 16.3)

Adverse events

Collected over Adverse events were collected during each study period: induction phase up to 22 weeks, maintenance phase up to 50 weeks, open-label phase up to 4 years. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
10 mg IMU-838 (Induction Phase)0/67 (0%)2/67 (3%)8/67 (11.9%)
30 mg IMU-838 (Induction Phase)0/67 (0%)5/67 (7.5%)7/67 (10.4%)
45 mg IMU-838 (Induction Phase)0/66 (0%)5/66 (7.6%)12/66 (18.2%)
Placebo (Induction Phase)0/63 (0%)0/63 (0%)13/63 (20.6%)
10 mg IMU-838 (Maintenance Phase)0/45 (0%)3/45 (6.7%)7/45 (15.6%)
30 mg IMU-838 (Maintenance Phase)0/40 (0%)2/40 (5%)6/40 (15%)
Placebo (Maintenance Phase)0/27 (0%)1/27 (3.7%)2/27 (7.4%)
30 mg IMU-838 (Open-label Phase)0/190 (0%)14/190 (7.4%)24/190 (12.6%)
Most frequent serious events
Showing 10 of 35
Most frequent serious events
Event10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)
Tubulointerstitial nephritisRenal and urinary disorders0/670/670/660/630/450/401/270/190
AnaemiaBlood and lymphatic system disorders1/671/671/660/630/451/400/270/190
Abortion spontaneousPregnancy, puerperium and perinatal conditions0/670/670/660/630/451/400/270/190
CholecystitisHepatobiliary disorders0/670/670/660/631/450/400/270/190
Clostridium difficile infectionInfections and infestations0/670/670/660/631/450/400/270/190
Acute coronary syndromeCardiac disorders0/670/670/660/631/450/400/270/190
Diarrhea hemorrhagicGastrointestinal disorders0/671/670/660/630/450/400/273/190
Large intestine perforationGastrointestinal disorders0/670/671/660/630/450/400/270/190
VolvulusGastrointestinal disorders0/670/671/660/630/450/400/270/190
Colon gangreneInfections and infestations0/670/671/660/630/450/400/270/190
Most frequent other events
Most frequent other events
Event10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase)30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)
COVID-19Infections and infestations2/671/672/662/635/451/400/2714/190
HaematuriaRenal and urinary disorders0/670/675/661/630/452/400/272/190
AnaemiaBlood and lymphatic system disorders2/675/673/663/631/451/402/275/190
HeadacheNervous system disorders3/671/671/664/630/451/400/275/190
Urinary tract infectionInfections and infestations0/671/671/661/631/452/400/273/190
VomitingGastrointestinal disorders1/670/670/663/630/450/400/271/190

Baseline characteristics

In the IP, one patient received erroneously 30 mg IMU-838 instead of placebo and was included in the 30 mg IMU-838 group for the safety analysis set (SAF), as in participant flow, but in the placebo group for the full analysis set (FAS). Demographics and baseline characteristics were analyzed for the FAS. Not all participants who completed or discontinued the IP continued to the MP or OLE. Patients were re-randomized at the start of MP (except the placebo group).

Age, Continuous
Age, Continuous(years)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Induction Phase40.0 (19 to 73)41.0 (21 to 77)40.5 (21 to 76)38.5 (18 to 73)————40.0 (18 to 77)
Maintenance phase————37.0 (19 to 76)39.5 (22 to 77)38.0 (20 to 73)—38.0 (19 to 77)
Open-label phase———————39.5 (18 to 77)39.5 (18 to 77)
Sex: Female, Male
Sex: Female, Male(Participants)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Induction phase — Female32262631————115
Induction phase — Male35404033————148
Maintenance phase — Female————15259—49
Maintenance phase — Male————301518—63
Open-label phase — Female———————8383
Open-label phase — Male———————107107
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Induction phase — Hispanic or Latino0103————4
Induction phase — Not Hispanic or Latino67656661————259
Induction phase — Unknown or Not Reported0000————0
Maintenance phase — Hispanic or Latino————000—0
Maintenance phase — Not Hispanic or Latino————454027—112
Maintenance phase — Unknown or Not Reported————000—0
Open-label phase — Hispanic or Latino———————33
Open-label phase — Not Hispanic or Latino———————187187
Open-label phase — Unknown or Not Reported———————00
Race (NIH/OMB)
Race (NIH/OMB)(Participants)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Induction phase — American Indian or Alaska Native0000————0
Induction phase — Asian1010————2
Induction phase — Native Hawaiian or Other Pacific Islander0000————0
Induction phase — Black or African American2000————2
Induction phase — White64666464————258
Induction phase — More than one race0010————1
Induction phase — Unknown or Not Reported0000————0
Maintenance phase — American Indian or Alaska Native————000—0
Maintenance phase — Asian————000—0
Maintenance phase — Native Hawaiian or Other Pacific Islander————000—0
Maintenance phase — Black or African American————000—0
Maintenance phase — White————454027—112
Maintenance phase — More than one race————000—0
Maintenance phase — Unknown or Not Reported————000—0
Open-label phase — American Indian or Alaska Native———————00
Open-label phase — Asian———————11
Open-label phase — Native Hawaiian or Other Pacific Islander———————00
Open-label phase — Black or African American———————11
Open-label phase — White———————187187
Open-label phase — More than one race———————11
Open-label phase — Unknown or Not Reported———————00
Region of Enrollment
Region of Enrollment(participants)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Romania001000001
United States5313000812
Czechia413101199
Ukraine212118252014146685
United Kingdom4204102910
Belarus312022046
Portugal010100112
Albania3235043213
Russia351084412026
Spain001000001
Netherlands102100024
North Macedonia5221110610
Poland112012129944255
Bulgaria101100133
Serbia54524401116
Bosnia and Herzegovina122041035
Croatia023000045
Duration of disease
Duration of disease(years)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Mean7.5 ± 7.65.8 ± 5.47.1 ± 7.45.2 ± 4.6————6.4 ± 6.4
Current tobacco users
Current tobacco users(Participants)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Induction phase2524————13
Maintenance phase————100—1
Open-label phase———————1010
Mayo PRO-2 Score at Basline
Mayo PRO-2 Score at Basline(units on a scale)10 mg IMU-838 (Induction Phase)30 mg IMU-838 (Induction Phase)45 mg IMU-838 (Induction Phase)Placebo (Induction Phase)10 mg IMU-838 (Maintenance Phase30 mg IMU-838 (Maintenance Phase)Placebo (Maintenance Phase)30 mg IMU-838 (Open-label Phase)Total
Induction phase4.1 ± 1.24.3 ± 1.04.3 ± 1.04.3 ± 0.9————4.2 ± 1.0
Maintenance phase————0.8 ± 0.50.9 ± 0.80.7 ± 0.5—0.8 ± 0.6
Open-label phase (Entry in open label after induction phase)———————3.9 ± 1.23.9 ± 1.2
Open-label phase (Entry in open label after maintenance phase)———————1.6 ± 1.71.6 ± 1.7
08

Study locations

131 sites
  • Del Sol Research Management, LLC
    Tucson, Arizona 85710, United States
  • Axis Clinical Trials
    Los Angeles, California 90036, United States
  • Ventura Clinical Trials
    Ventura, California 93003, United States
  • Alliance Medical Research, LLC
    Lighthouse Point, Florida 33071, United States
  • Medley Research Associates
    Medley, Florida 33166, United States
  • Global Life Research LLC
    Miami, Florida 33155-4630, United States
  • Family Clinical Trials
    Pembroke Pines, Florida 33026-3240, United States
  • Clinical Research Trials of Florida, Inc.
    Tampa, Florida 33607, United States
  • Atlanta Gastroenterology Associates, LLC
    Atlanta, Georgia 30308, United States
  • McFarland Clinic, P.C.
    Ames, Iowa 50010, United States
  • Commonwealth Clinical Studies
    Brockton, Massachusetts 02302, United States
  • PMG Research of Salisbury, LLC
    Salisbury, North Carolina 28144, United States
  • Clinical Trials of South Carolina
    Charleston, South Carolina 29406-7132, United States
  • First Street Surgical Hospital
    Bellaire, Texas 77401, United States
  • Digestive Health Specialists
    Tacoma, Washington 98405, United States
  • Durres Regional Hospital
    Durres, 2001, Albania
  • Regional Hospital of Shkoder
    Shkoder, 4001, Albania
  • University Hospital Center Mother Teresa
    Tirana, 1000, Albania
  • Gomel Regional Clinical Hospital
    Gomel, 246029, Belarus
  • Republican Scientific and Practical Center for Radiation Medicine and Human Ecology
    Gomel, 246040, Belarus
  • Vitiebsk State Order of Peoples' Friendship Medical University
    Vitebsk, 210009, Belarus
  • University Clinical Centre of the Republic of Srpska, Internal Medicine Clinic, Department of Gastroenterology and Hepatology
    Banja Luka, 78000, Bosnia and Herzegovina
  • University Clinical Hospital Mostar, Internal Medicine Clinic, Department of Gastroenterology
    Mostar, 88000, Bosnia and Herzegovina
  • Multiprofile Hospital for Active Treatment Blagoevgrad AD
    Blagoevgrad, 2700, Bulgaria
  • Mhat Byala
    Byala, 187100, Bulgaria
  • Multiprofile Hospital for Active Treatment "Dr. Hristo Stambolski" EOOD
    Kazanlak, 6100, Bulgaria
  • Medical Center "Medconsult Pleven" OOD
    Pleven, 5800, Bulgaria
  • Medical Center Exacta Medica
    Pleven, 5800, Bulgaria
  • University Multiprofile Hospital for Active Treatment "Sveti Georgi" EAD, Plovdiv, Gastroenterology clinic
    Plovdiv, 4002, Bulgaria
  • Medical Center "Hera" EOOD
    Sofia, 1510, Bulgaria
  • Diagnostic-Consulting Center "Convex" EOOD
    Sofia, 1680, Bulgaria
  • General Hospital Bjelovar
    Bjelovar, 43000, Croatia
  • Clinical Hospital Center Osijek
    Osijek, 31000, Croatia
  • Clinical Hospital Center Rijeka
    Rijeka, 51000, Croatia
  • Clinical Hospital Center Split
    Split, 21000, Croatia
  • General Hospital Vukovar
    Vukovar, 32000, Croatia
  • Clinical Hospital Center Zagreb
    Zagreb, 10000, Croatia
  • Clinical Hospital Dubrava
    Zagreb, 10000, Croatia
  • Polyclinic Solmed Zagreb
    Zagreb, 10000, Croatia
  • Clinical Hospital Center Split
    Zagreb, 21000, Croatia
  • Asclepiades - Interna a gastroenterologie s.r.o. - Havířov
    Havířov, 73601, Czechia
  • Hepato-Gastroenterologie HK, s.r.o. Poliklinika III
    Hradec Králové, 50012, Czechia
  • Artroscan s.r.o.
    Ostrava - Třebovice, 72200, Czechia
  • FaraCol s.r.o. - Prague
    Praha, 10100, Czechia
  • MEDICON a.s. - Poliklinika Budějovická Gastroenterologie
    Praha, 14000, Czechia
  • Klinika ResTrial
    Praha, 14300, Czechia
  • Všeobecná fakultní nemocnice v Praze IV. interní klinika VFN a 1. LF UK
    Praha, 17004, Czechia
  • Academician Z.Tskhakaia West Georgia National Center of Interventional Medicine
    Kutaisi, 4600, Georgia
  • LTD Unimedi Kakheti - Caraps Medline
    Tbilisi, 0159, Georgia
  • Amsterdam UMC, locatie AMC
    Amsterdam, 1105 AZ, Netherlands
  • Albert Schweitzer Hospital
    Dordrecht, 3318 AT, Netherlands
  • Elisabeth-TweeSteden Hospital
    Tilburg, 5022 GC, Netherlands
  • City General Hospita 8th September
    Skopje, 1000, North Macedonia
  • University Clinic for Hematology - Skopje - Macedonian Hematology Association
    Skopje, 1131, North Macedonia
  • Centrum Usług Medycznych MaxMed
    Bochnia, 32700, Poland
  • Centrum Medyczne Pratia Gdynia
    Gdynia, 81338, Poland
  • Centrum Medyczne Endo-med Sp. z o.o.
    Karczew, 05480, Poland
  • Vita Longa Sp. z o.o.
    Katowice, 40748, Poland
  • GLOBE Badania Kliniczne Sp. z o.o.
    Kłodzko, 57300, Poland
  • Samodzielny Publiczny Szpital Kliniczny Nr 4 w Lublinie Oddział Gastroenterologii
    Lublin, 20954, Poland
  • Zakład leczniczy ALLMEDICA BADANIA KLINICZNE Sp. z o.o. Sp. K.
    Nowy Targ, 34400, Poland
  • Etyka Ośrodek Badań Klinicznych
    Olsztyn, 10117, Poland
  • Ars Medical - Szpital, Ars Medical - Ambulatorium
    Piła, 64920, Poland
  • SOLUMED Centrum Medyczne
    Poznań, 60529, Poland
  • Niepubliczny Zakład Opieki Zdrowotnej Centrum Medyczne HCP - Lecznictwo Stacjonarne
    Poznań, 61485, Poland
  • Endoskopia Sp. z o.o.
    Sopot, 81756, Poland
  • Klinika Medifem
    Warszawa, 02-884, Poland
  • Centrum Badawcze Współczesnej Terapii, Prywatny Gabinet Lekarski dr Anna Bochenek-Mularczyk
    Warszawa, 02679, Poland
  • Przychodnia Vistamed
    Wroclaw, 53149, Poland
  • Centrum Medyczne OMNI Clinic Sp. z o.o. Spółka Komandytowa
    Wrocław, 54204, Poland
  • Centrum Medyczne Med-Gastr Sp. z o.o. Spółka Komandytowa
    Łódz, 91034, Poland
  • Salve Medica Sp. z o.o. Spółka Komandytowa
    Łódź, 91211, Poland
  • Centro Hospitalar e Universitário de Coimbra, EPE - Hospitais da Universidade de Coimbra
    Coimbra, 3000-075, Portugal
  • Hospital da Senhora da Oliveira - Guimarães, EPE
    Guimarães, 4835-044, Portugal
  • Centro Hospitalar de Entre o Douro e Vouga, EPE - Hospital São Sebastião
    Santa Maria da Feira, 4520-211, Portugal
  • S.C. MEDLIFE S.A., Sectia Gastroenterologie
    Bucharest, 10719, Romania
  • Spitalul Clinic Colentina, Sectia Gastroenterologie
    Bucharest, 20125, Romania
  • Institutul Clinic Fundeni, Sectia Clinica Gastroenterologie III
    Bucharest, 22328, Romania
  • S.C. Cabinet Particular Policlinic Algomed SRL, Specialitatea Gastroenterologie
    Timisoara, 300002, Romania
  • Kazan State Medical University
    Kazan, 420012, Russian Federation
  • SEI HPE "Kuban State Medical University" of MoH and SD, CBHS Regional Clinical Hospital No.2
    Krasnodar, 350072, Russian Federation
  • Central Clinical Hospital of the Russian Academy of Sciences
    Moscow, 119435, Russian Federation
  • Federal Medical Biophysical Center n.a. Burnazyan
    Moscow, 123098, Russian Federation
  • Clinical Research Institution of Moscow Region named after M. F. Vladimirsky
    Moscow, 129110, Russian Federation
  • Novosibirskiy Gastrocenter, LLC
    Novosibirsk, 630007, Russian Federation
  • FSBEI HE "Military Medical Academy n.a. S.M. Kirov" under the Ministry of Defence of Russian Federation
    Saint Petersburg, 191015, Russian Federation
  • Hospital of Saint Martyr Elizaveta
    Saint Petersburg, 195257, Russian Federation
  • Research Center Eco-Safety, LLC
    Saint Petersburg, 196143, Russian Federation
  • Gastroenterological Center "Expert" LLC
    Saint Petersburg, 196620, Russian Federation
  • Saint Petersburg State Medical University named after I.P. Pavlov
    Saint Petersburg, 197101, Russian Federation
  • City Hospital No. 5 - Sochi
    Sochi, 354207, Russian Federation
  • Siberian State Medical University
    Tomsk, 634050, Russian Federation
  • Regional State Autonomous Healthcare Institution "Tomsk Regional Clinical Hospital"
    Tomsk, 634063, Russian Federation
  • Clinic for gastroenterohepatology
    Belgrade, 11000, Serbia
  • Clinical Hospital Center Zemun
    Belgrade, 11070, Serbia
  • University Hospital Center Bezaniska Kosa
    Belgrade, 11080, Serbia
  • Clinical Center Kragujevac
    Kragujevac, 34000, Serbia
  • General Hospital Leskovac
    Leskovac, 16000, Serbia
  • Clinical Center Nis
    Nis, 18000, Serbia
  • General Hospital Djordje Joanovic, Internal Deases Department, Gastroenterology
    Zrenjanin, 34000, Serbia

Showing the first 100 of 131 sites across 19 countries. Choose a country and city above to see the rest.

09

References and documents

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2018 to primary completion in Nov 2022, 56 months.

Results were first posted in Mar 2024, 1 year 3 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 8, 2017
First posted
Nov 14, 2017
StartActual
Mar 15, 2018
Primary completionActual
Nov 16, 2022
CompletionActual
Nov 16, 2022
Results first posted
Mar 5, 2024
Last update
Mar 5, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 5, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03341962
Lead sponsor
Immunic AG
Responsible party
Sponsor
First posted
Nov 14, 2017
Start date
Mar 15, 2018
Primary completion
Nov 16, 2022
Completion
Nov 16, 2022
Results posted
Mar 5, 2024
Last update
Mar 5, 2024

Study contacts

Andreas Muehler
study director · Immunic Therapeutics

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Feb 2024. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Vidofludimus-calcium

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