E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
Atopic dermatitis (AD) is a common and chronic inflammatory skin disorder that affects a broad demographic, with an increasing prevalence worldwide. |
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E.1.1.2 | Therapeutic area | Diseases [C] - Skin and Connective Tissue Diseases [C17] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 21.1 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10003639 |
E.1.2 | Term | Atopic dermatitis |
E.1.2 | System Organ Class | 100000004858 |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To evaluate the clinical efficacy of 3 dosage regimens of CC-93538 (720 mg once weekly [QW], 720 mg every other week [Q2W], and 360 mg Q2W), compared with placebo on the change in the core clinical outcome measure, Eczema Area and Severity Index (EASI), in subjects with moderate to severe atopic dermatitis (AD). |
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E.2.2 | Secondary objectives of the trial |
- To evaluate the effect of 3 CC-93538 dosage regimens, compared with placebo on additional clinical outcome measures and patient reported outcomes in subjects with moderate to severe AD
- To evaluate the safety and tolerability, including characterization of the immunogenicity profile, of 3 dosage regimens of CC-93538, compared with placebo in subjects with moderate to severe AD
-To assess the serum trough concentration of CC-93538 in subjects with moderate to severe AD |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
Participants must satisfy the following criteria to be enrolled in the study:
1. Participant must be ≥ 18 years and ≤ 70 years of age and have a body weight of ≥ 55 kg (121lb) at the time of signing the informed consent form (ICF)and re-confirmed prior to dosing at the baseline visit ( Day 1).
2. Participant has chronic atopic dermatitis (AD) as defined by Hanifin and Rajka that has been present for ≥ 1 year prior to the baseline visit (Day 1).
3. Participant has moderate to severe, active, and symptomatic AD defined by meeting all of the following criteria on the day of the baseline visit (Day 1):
a. Body Surface Area (BSA) ≥ 10%, and
b. EASI score ≥ 16, and
c. vIGA-AD ≥ 3, and
d. Pruritus Numeric Rating Scale (NRS) severity score ≥ 4.
4. Participant must have a documented history of inadequate response to treatment with topical medications for at least 4 weeks, unless topical treatments are otherwise medically inadvisable or has required systemic therapy for control of disease.
5. Participant must be willing to apply a stable dose of topical emollient (eg, over-the-counter moisturizer, non-medicated emollient, etc.) twice daily for ≥ 7 days prior to the Baseline
visit and continue application throughout the study.
6. Participant must commit to avoid prolonged exposure to the sun and not to use tanning booths, sun lamps or other ultraviolet light sources during the study.
7. Participants currently receiving concomitant medications for any reason other than AD, such as inhaled corticosteroids, leukotriene receptor antagonists (eg, montelukast), or mast cell stabilizers (eg, cromolyn sodium) for asthma, must be on a stable regimen, which is defined as not starting a new drug, changing, or stopping dosage within 7 days or 5 half-lives (whichever is longer) prior to Day 1 and through the treatment duration of the study.
8. Female participants of childbearing potential must agree to practice a highly effective method of contraception. |
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E.4 | Principal exclusion criteria |
1. The presence of any of the following will exclude a participant from enrollment: Evidence of an active and/or concurrent inflammatory skin condition (eg, seborrheic dermatitis, psoriasis, acute allergic contact dermatitis, etc.) that would interfere with the Investigator or participant-driven evaluations of AD.
2. Evidence of acute AD flare between the Screening and Baseline/ Randomization (eg, doubling of the EASI score between Screening and Baseline).
3. Use of topical treatments that could affect the assessment of AD (eg, corticosteroids, calcineurin inhibitors, tars, antibiotic creams, topical antihistamines) within 7 days of the Day 1 visit.
4. Received phototherapy narrowband UVB (NB-UVB) or broad band phototherapy within 4 weeks prior to the Baseline visit.
5. Evidence of immunosuppression, participant is receiving, or has received systemic immunosuppressive or immunomodulating drugs (eg, azathioprine, cyclosporine, systemic corticosteroids, interferon gamma (IFN-γ), Janus kinase inhibitors, methotrexate, mycophenolate-mofetil, etc.) within 4 weeks prior to the Baseline visit.
6. Treatment with immunomodulatory biologics
7. Concurrent treatment with another IP
8. Received a live attenuated vaccine within 1 month prior to the first Screening Visit or anticipates the need to be vaccinated with a live attenuated vaccine during the study.
9. Active parasitic/helminthic infection or a suspected parasitic/helminthic infection.
10. Ongoing infection
11. A history of idiopathic anaphylaxis or a major immunologic reaction (such as anaphylactic reaction, anaphylactoid reaction, or serum sickness) to an immunoglobulin G (IgG) containing agent. A known hypersensitivity to any ingredient in the investigational product (IP) is also exclusionary. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Percent change in EASI from Baseline at Week 16: The Eczema Area and Severity Index (EASI) is a composite scoring system assessed by the Investigator based on the proportion of each of the 4 body regions (head and neck, upper limbs, lower limbs, and trunk) affected with Atopic Dermatitis (AD). |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
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E.5.2 | Secondary end point(s) |
1.Proportion of participants with an vIGAAD score from Baseline at Week 16: The Validated Investigator Global Assessment (vIGA)-AD is a validated 5-point assessment intended to assess the global severities of key acute clinical signs of AD, including erythema, induration/papulation, oozing/crusting (lichenification excluded).
2. Proportion of participants with at least a 75% improvement from Baseline in Eczema Area and Severity Index (EASI-75) at Week 16: The EASI is a composite scoring system assessed by the Investigator based on the proportion of each of the 4 body regions (head and neck, upper limbs, lower limbs, and trunk) affected with AD.
3. Percent change from Baseline in Pruritus Numerical Rating Scale (NRS) at Week 16: Pruritus NRS is a single item, participant reported outcome (PRO) of itch severity.
4. Proportion of participants with Pruritus NRS change of ≥ 4 points from Baseline at Week 16: Pruritus NRS is a single item, participant reported outcome (PRO) of itch severity.
5. Time to achieve at least 4 points of improvement in the severity of pruritus NRS scale in the first 16 weeks of treatment: Pruritus NRS is a single item, participant reported outcome (PRO) of itch severity.
6. Proportion of participants with at least a 90% improvement from Baseline in Eczema Area and Severity Index (EASI-90) at Week 16: The Eczema Area and Severity Index (EASI) is a composite scoring system assessed by the Investigator based on the proportion of each of the 4 body regions (head and neck, upper limbs, lower limbs, and trunk) affected with Atopic Dermatitis (AD).
7. Mean change in SCORAD Scores from Baseline at Week 16: The Scoring Atopic Dermatitis Index (SCORAD) is a validated scoring index for atopic dermatitis, which combines extent (0 to 100), severity (0 to 18), and subjective symptoms (0 to 20) based on pruritus and sleep loss, each scored (0 to 10).
8. Percent change in BSA involved with AD from baseline at Week 16: Percentage body surface area of the skin that displays signs or symptoms consistent with atopic dermatitis.
9. Incidence of Adverse Events (AEs) Up tp week 32: An AE is any noxious, unintended, or untoward medical occurrence that may appear or worsen in a participant during the course of a study. It may be a new intercurrent illness, a worsening concomitant illness, an injury, or any concomitant impairment of the participant’s health, including laboratory test values, regardless of etiology. Any worsening (ie, any clinically significant adverse change in the frequency or intensity of a preexisting condition) should be considered an AE.
10. Assessment of Immunogenicity through measurement of serum concentrations of anti-drug antibodies to CC-93538. Up to week 32. Evaluated by the presence of anti-drug antibodies to CC-93538.
11. Pharmacokinetics-Cthrough. Up to 32 weeks. Serum trough concentration of
CC-93538 |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
week 16 for secondary endpoints 1-8; Up to week 32 for secondary endpoint 9.
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | Yes |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | Yes |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | Yes |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | No |
E.8.2.2 | Placebo | Yes |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 4 |
E.8.3 |
The trial involves single site in the Member State concerned
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 8 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 22 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Canada |
Czechia |
Japan |
Poland |
United States |
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E.8.7 | Trial has a data monitoring committee | Yes |
E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
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The End of Study is defined as either the date of the last visit of the last subject to complete the post-treatment follow-up, or the date of receipt of the last data point from the last subject that is required for primary, secondary, and/or exploratory analysis, as pre-specified in the protocol, whichever is the later date. |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 1 |
E.8.9.1 | In the Member State concerned months | 7 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 7 |
E.8.9.2 | In all countries concerned by the trial days | 0 |