E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
active bullous pemphigoid |
|
E.1.1.1 | Medical condition in easily understood language |
active bullous pemphigoid |
|
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 | 14.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10006567 |
E.1.2 | Term | Bullous pemphigoid |
E.1.2 | System Organ Class | 10040785 - Skin and subcutaneous tissue disorders |
|
E.1.3 | Condition being studied is a rare disease | Yes |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
The objective of this clinical trial is to evaluate whether DF2156A has a potential in improving the clinical outcome in patients with active blistering BP to warrant its further development. The safety of DF2156A in the specific clinical setting will be also evaluated. |
|
E.2.2 | Secondary objectives of the trial |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
To be eligible for inclusion into this study, each patient must fulfil the following inclusion criteria.
- Male and female patients aged >50 years.
- Patients with newly diagnosed or relapsing bullous pemphigoid based on clinical diagnosis to be confirmed by direct immunofluorescence and indirect immunofluorescence on salt-spit skin (or BP180 and/or BP230 ELISA). Confirmation by laboratory tests will be obtained ideally before or anyway within one week after enrolment.
For the purpose of this study, clinical relapses are defined as re-appearance of clinical symptoms after the patient had attained remission lasting for more than 3 months without immunosuppressive treatment. In patients with relapsing BP, clinical diagnosis will be confirmed by indirect immunofluorescence or BP180 and/or BP230
ELISA only.
- Patients with mild to moderate active blistering disease (total number of blisters between 1 and 30) whether associated or not with urticarial/eczematous lesions.
- Patients with modified ABSIS score ≤50
- Patients free from any systemic treatments that may affect the course of the disease with the following off-period prior to enrolment:
- 3 weeks: steroids, dapsone, tetracyclines, nicotinamide,
- 3 months: azathioprine, mycofenolate mofetil, cyclophosphamide,
methotrexate, intravenous immunoglobulins, immunoadsorption, TNF
antagonists
- 12 months: rituximab, leflunomide
- Patients free from any topical treatments other than topical antibiotics and antiseptics in the 4 days prior to enrolment.
- Patients able to comply with the protocol procedures for the duration of the study, including scheduled follow-up visits and examinations.
- Patients able to provide informed consent. |
|
E.4 | Principal exclusion criteria |
- Patients with a Karnofsky rating score <40%.
- Patients with mucosal involvementPatients with moderate to severe renal impairment as per calculated creatinine clearance (CLcr) < 50 mL/min according to the Cockcroft-Gault formula (Cockcroft- Gault, 1976).
- Patients with hepatic dysfunction defined by increased ALT/AST > 3 x upper limit of normal (ULN) and increased total bilirubin > 3 mg/dL [>51.3 μmol/L].
- Patients with hypoalbuminemia defined as serum albumin < 3 g/dL.
- Patients with a baseline (day 0/1, pre-dose) QTcF > 470 msec.
- Patients who had a myocardial infarction in the 6 months prior to enrolment.
- Patients on treatment with phenytoin, warfarin, sulphanylurea hypoglycemics (e.g. tolbutamide, glipizide, glibenclamide/glyburide, glimepiride, nateglinide) and high dose of amitriptyline (> 50 mg/day).
- Patients with known hypersensitivity to non-steroidal antiinflammatory drugs.
- Patients using any investigational agent within 12 months prior to enrolment.
- Pregnant or breast feeding women. Unwillingness to use effective contraceptive measures up to 2 months after the end of study drug administration (females and males).
Patients with hypokalemia defined as serum potassium < 3.5 mmol/L.
- Patients with clinically relevant bradycardia (heart rate < 50 beats/min)
- Patients with a complete left bundle branch block.
- Patients with a history of uncontrolled or labile hypertension
- Patients with a history of congestive heart failure.
- Patients with a history of cardiomiopathy.
- Patients with unstable angina pectoris
- Patients with a personal or family history of congenital or documented acquired QT interval prolongation
- Patients with a significant atrial or ventricular arrhythmia or symptomatic arrhythmia in the past. |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Total number of blisters and percent change from baseline; Modified ABSIS score and percent change from baseline; Physician Global Assessment (PGA) score measured on a 0-10 scale; Absolute value and % change from baseline; Pruritus measured on a 10 cm visual analogue scale. Absolute value and percent change from baseline; Eosinophil blood count. Absolute number and percent change from baseline; Number and percentage of patients with treatment failure (drug discontinuation due to disease worsening); Number and percentage of patients completely free from blisters; Number of patients who are still free from blisters without requiring any systemic or topical rescue treatment - Optional |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
time frame: day 0/1 (predose), 8 and 15; time frame: day 0/1 (predose), 8 and 15; time frame: day 0/1 (predose), 8 and 15; time frame: screenitime frame: day 8ng and day 15; time frame: day 8; time frame: day 30 |
|
E.5.2 | Secondary end point(s) |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
|
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 | 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 | No |
E.8.1.1 | Randomised | No |
E.8.1.2 | Open | No |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | No |
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 | No |
E.8.2.3 | Other | No |
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 | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 4 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | No |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.7 | Trial has a data monitoring committee | No |
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 | 1 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 0 |
E.8.9.2 | In all countries concerned by the trial months | 0 |
E.8.9.2 | In all countries concerned by the trial days | 0 |