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 |
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E.1.1.2 | Therapeutic area | Diseases [C] - Immune System Diseases [C20] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10001761 |
E.1.2 | Term | Alopecia areata |
E.1.2 | System Organ Class | 10040785 - Skin and subcutaneous tissue disorders |
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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 |
Primary Safety: To assess I-V interwave latency on brainstem auditory evoked potentials (BAEPs) in adult participants with alopecia areata (AA) treated with PF-06651600.
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E.2.2 | Secondary objectives of the trial |
Safety: -To assess I-V interwave latency on BAEPs in adult participants with AA treated with PF-06651600. -To assess axonal dystrophy in intraepidermal nerve endings over time in adult participants with AA treated with PF 06651600 -To assess intraepidermal nerve fiber density (IENFD) over time in adult participants with AA treated with PF 06651600. -To assess wave V amplitude on BAEP over time in adult participants with AA treated with PF-06651600. - To assess presence of wave V on BAEP over time in adult participants with AA treated with PF-06651600. -To evaluate the safety and tolerability of PF-06651600 in adult participants with AA. Efficacy: -To evaluate response to PF-06651600 measured by the Severity of Alopecia Tool (SALT) in adult participants with AA. -To evaluate the response to PF-06651600 measured by the Patient’s Global Impression of Change (PGI-C) tool in adult participants with AA |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1.Have a clinical diagnosis of AA and ≥25% scalp hair loss (including AT and AU) due to AA. 2.Have normal hearing and BAEP assessments at screening. 3.Have a normal neurological examination by a neurologist at screening (unilateral carpal tunnel syndrome or median nerve neuropathy permitted). 4.Male or female (not pregnant or breastfeeding) subjects between18 to 50 years. 5.Female (not pregnant or breastfeeding) participants must be either be a WOCBP and using a highly effective contraceptive method or not be of childbearing potential (WOCBP).
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E.4 | Principal exclusion criteria |
1.Other medical or psychiatric condition, including recent (within the past year) or active suicidal ideation or behavior. 2.Any current hearing loss or current disease that can affect hearing. 3.Current or history of clinically significant central or peripheral neurological disease 4.First degree family history of hereditary neuropathy. 5.Any history of peripheral neuropathy (PN), including diabetic PN, chemotherapy-induced PN, drug-induced PN, genetic PN, idiopathic PN, etc. 6.Current or recent history of clinically significant severe, progressive, or uncontrolled renal, hepatic, hematological, gastrointestinal, metabolic, endocrine (particularly thyroid disease and parathyroid disease, which can be associated with hair loss), pulmonary, cardiovascular, psychiatric, immunologic (other than AA), rheumatologic, dermatologic or neurologic disease; or have any other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation 7.Any present malignancies or history of malignancies with the exception of adequately treated or excised non-metastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ. 8.History of any lymphoproliferative disorder. 9.History of disseminated herpes zoster or disseminated herpes simplex, or a recurrent (more than one episode of) localized, dermatomal herpes zoster. 10.History of systemic infection requiring hospitalization, parenteral antimicrobial therapy within 6 months prior to Day 1 11.Known immunodeficiency disorder or a first degree relative with a hereditary immunodeficiency. 12.History of HIV or positive serology for human immunodeficiency virus (HIV) at screening. 13.Considered in imminent need for surgery. 14.Active acute or chronic infection requiring treatment with oral antibiotics, antivirals, antiparasitics, antiprotozoals, or antifungals within 4 weeks prior to Day 1 15.Infection with hepatitis B or hepatitis C viruses. 16.Have evidence of untreated or inadequately treated active or latent Mycobacterium tuberculosis (TB) infection. 17.Abnormal findings on the screening chest radiographs (eg, chest x-ray) including, but not limited to, presence of active TB, infection, cardiomyopathy, or malignancy.
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E.5 End points |
E.5.1 | Primary end point(s) |
Change from baseline in I-V interwave latency on BAEP at a stimulus intensity of 80 decibels (dB) at Month 9. |
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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) |
•Change from baseline in I-V interwave latency on BAEP at a stimulus intensity of 80dB at Months 6, 9E, and 15E. •Change from baseline in axonal dystrophy in skin punch biopsies at Month 9 and Month 15E. •Change from baseline in IENFD in skin punch biopsies at Month 9 and Month 15E. •Change from baseline in amplitude of wave V on BAEP at a stimulus intensity of 80dB at Months 6, 9, 9E, and 15E. •Absence of wave V on BAEP at stimulus intensities ranging from 80dB to 40dB at Months 6, 9, 9E, and 15E. •Incidence of treatment emergent adverse events (TEAEs), treatment-emergent serious adverse events (TESAEs), and adverse events (AEs) leading to discontinuation; •Incidence of clinically significant abnormalities in vital signs and ECG; •Incidence of clinically significant abnormalities in clinical laboratory values. •Change from baseline in overall and AA SALTa score at Month 9 and other time points collected •PGI-C score response defined as greatly improved or moderately improved at Month 9 and other time points collected. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
80dB at Months 6, 9E, and 15E. |
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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 | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
E.6.11 | Pharmacogenomic | No |
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 | 2 |
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 | No |
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 |
Australia |
Canada |
United States |
Poland |
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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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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 2 |
E.8.9.1 | In the Member State concerned months | 7 |
E.8.9.1 | In the Member State concerned days | 23 |
E.8.9.2 | In all countries concerned by the trial years | 2 |
E.8.9.2 | In all countries concerned by the trial months | 10 |
E.8.9.2 | In all countries concerned by the trial days | 26 |