E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Moderate to severe atopic dermatitis |
|
E.1.1.1 | Medical condition in easily understood language |
Inflammation of the skin resulting in itchy, red, swollen and cracked skin. |
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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 | 20.0 |
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 characterize the dose-response relationship of ZPL389 in patients with moderate to severe AD assessed by Investigator's global assessment (IGA) response at week 16 . |
|
E.2.2 | Secondary objectives of the trial |
• To characterize the dose-response relationship of ZPL389 in patients with moderate to severe AD assessed using the percent change from baseline in Eczema Area and Severity Index (EASI) score after 16 weeks of treatment
• To evaluate the efficacy across different dose levels as assessed by EASI and IGA compared to placebo over time
• To assess the safety and tolerability of different doses of ZPL389 as compared to placebo |
|
E.2.3 | Trial contains a sub-study | Yes |
E.2.3.1 | Full title, date and version of each sub-study and their related objectives |
Title: Actigraphy substudy
Obbjective: Explore the effect of ZPL389 on sleep disturbance and noctural scratching in a subject of subjects. |
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E.3 | Principal inclusion criteria |
Eligible for inclusion in this study must fulfill all of the following criteria:
- Written informed consent
- Females and males aged 18 years or older
- Chronic atopic dermatitis (according to AADConsensus Criteria), that has been present for at least 1 year before the
Baseline visit.
- Moderate to severe atopic dermatitis defined as:
- Eczema Area and Severity Index ≥16 at Screening and ≥16 at Baseline
- Investigator's global assessment 3 or 4 on a 5-point scale (at screening and Baseline
- Body Surface Area involvement ≥10% at Screening and Baseline
- Average peak pruritis score ≥3 as assessed by NRS over the last 7 days prior to Baseline
- Documented recent history (within 6 months before the screening visit) of inadequate response to treatment with topical medications or for whom topical treatments are otherwise medically inadvisable (e.g., because of important side effects or safety risks)
- Candidate for systemic treatment
- Have applied a stable dose of bland topical emollient at least twice daily for at least the 7 consecutive days immediately before the baseline visit |
|
E.4 | Principal exclusion criteria |
- Any skin disease that, in the opinion of the investigator, including infection, would confound the diagnosis or evaluation of atopic dermatitis disease activity
- Current skin infection
- Use of other investigational drugs within 5 half-lives of enrollment, or within 30 days /until the expected pharmacodynamic effect has returned to baseline, whichever is longer.
- History of hypersensitivity to any of the study drugs or its excipients or to drugs of similar chemical classes.
- subjects taking prohibited medication as per protocol
- Risk factors for Torsades de Pointe including uncorrected hypokalemia or hypomagnesemia, history of cardiac failure, or history of clinically significant/symptomatic bradycardia or any of the following:
- Long QT syndrome, family history of idiopathic sudden death or congenital long QT syndrome
- Concomitant medication(s) with a “Known Risk of Torsades de Pointe” that cannot be discontinued or replaced by safe alternative medication.
- Resting QTcF ≥450 msec (male) or ≥470 msec (female) at screening or baseline or inability to determine the QTcF interval
- Cardiac or cardiac repolarization abnormality
- Subjects with pre-existing conditions that may confound ability to diagnose drug-induced liver injury or subjects with factors that increase susceptibility to DILI
- Subjects who have a laboratory abnormality at Screening
- History of lymphoproliferative disease or any known malignancy or history of malignancy of any organ system within the past 5 years
- Past medical history record of, or current infection with, human immunodeficiency virus
- Any surgical, medical, psychiatric or additional physical condition that the Investigator feels may jeopardize the subject in case of participation in this study
- Pregnant or nursing (lactating) women
- Women of child-bearing potential, defined as all women physiologically capable of becoming pregnant, unless they are using required methods of contraception during dosing and for 4 weeks after stopping of investigational medication.
- Sexually active males unless they use a condom during intercourse while taking drug and for 120 days after stopping investigational medication and should not father a child in this period.
- Prior exposure to ZPL389 treatment |
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E.5 End points |
E.5.1 | Primary end point(s) |
To characterize the dose-response relationship of ZPL389 in patients with moderate to severe AD assessed by Investigator's global assessment (IGA) response after 16 weeks of treatment |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
|
E.5.2 | Secondary end point(s) |
• To characterize the dose-response relationship of ZPL389 in patients with moderate to severe AD assessed using the percent change from baseline in Eczema Area and Severity Index (EASI) score after 16 weeks of treatment
• To evaluate the efficacy across different dose levels as assessed by EASI and IGA compared to placebo over time
• To assess the safety and tolerability of different doses of ZPL389 as compared to placebo |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
• Percent change from baseline EASI score at Week 16
• At each visit:
• IGA score
• IGA response
• EASI score as well as absolute and percent change from baseline EASI score
• EASI 50 response, EASI 75 response
• Frequency of adverse events |
|
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 | No |
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 | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | Yes |
E.6.13.1 | Other scope of the trial description |
Actigraphy Substudy :
A subset of approximately 100 subjects will participate in a substudy to measure movement during sleep. |
|
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 | 5 |
E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
E.8.4 | The trial involves multiple sites in the Member State concerned | No |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 33 |
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 |
Finland |
Germany |
Iceland |
Japan |
Netherlands |
Poland |
United Kingdom |
United States |
|
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
|
|
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 | 2 |
E.8.9.1 | In the Member State concerned days | 14 |
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 | 3 |