Overview

Study of Mechanism of Action of Ligelizumab (QGE031) in Patients With Chronic Urticaria

Status:
Recruiting
Trial end date:
2023-03-14
Target enrollment:
0
Participant gender:
All
Summary
The purpose of the study is to investigate the mechanism of action for ligelizumab (QGE031) treatment in patients with chronic urticaria. The study has two parts. The study population will consist of approximately 68 male and female healthy volunteers and patients. In Part 1, approximately 20 healthy volunteers and patients with chornic urticaria will be enrolled. In Part 2 approximately 48 patients with chronic urticaria (spontaneous chronic urticaria, cholinergic urticaria or cold urticaria). Part 1 consists of a screening period up 2 weeks and a visit with skin tests; there is no treatment taken in Part 1. Part 2 is randomized, subject, investigator and sponsor blinded. It consists of a screening period up to 4 weeks, a 16 week treatment period and a 12-week follow-up period after last treatment. A follow-up call at Week 32 will be performed via telephone.
Phase:
Phase 1
Accepts Healthy Volunteers?
Accepts Healthy Volunteers
Details
Lead Sponsor:
Novartis Pharmaceuticals
Criteria
Inclusion Criteria:

Healthy volunteers • Healthy male and female subjects in good health as determined by past
medical history, physical examination, vital signs, electrocardiogram, and laboratory tests
at screening.

CSU and CINDU patients (cold and cholinergic urticaria)

• Part 2: Positive response to challenge test with ciprofloxacin 250 mg/ml or 125 mg/ml,
defined as a wheal formation with longest diameter of at least 3 mm and middle
perpendicular diameter of at least 2 mm at Day 1.

CSU patients

- Diagnosis of CSU, not adequately controlled with H1-AH at approved doses alone at the
time of randomization, as defined by all of the following:

- UAS7 score (range 0-42) ≥ 16 and HSS7 (range 0-21) ≥ 8 during 7 days prior to
randomization

- CSU for ≥ 6 months CINDU patients (cold and cholinergic urticaria)

- For patients with cold urticaria: Cold urticaria symptoms persisting for at least 6
months prior to study enrollment and a positive cold urticaria provocation test
defined as wheal response to TempTest 4.0® at Day 1.

- For patients with cholinergic urticaria: Cholinergic urticaria symptoms for at least 6
months prior to enrollment and a positive response in the challenge test defined as a
wheal response in the pulse controlled ergometry provocation test (30 minutes bicycle
challenge) at Day 1

Exclusion Criteria:

Healthy volunteers

- History of allergies or allergy to the challenge substances including ciprofloxacin,
icatibant, other quinolones or excipients of the substances being used in the study.

- Recent (within the last three years) and/or recurrent history of autonomic dysfunction
(e.g. recurrent episodes of fainting, palpitations, etc.).

- Donation or loss of 450 mL or more blood within eight weeks prior to initial dosing,
or longer if required by local regulations.

CSU and CINDU patients (cold and cholinergic urticaria)

- History of allergies or allergy to the challenge substances including ciprofloxacin,
icatibant (Part 1 only), other quinolones or excipients of the substances being used
in this study.

- Contraindications to or hypersensitivity to antihistamines (such as fexofenadine,
loratadine, cetirizine, rupatadine, bilastine) or epinephrine or any of the
ingredients.

- History or presence of renal disease and/or estimated glomerular filtration (eGFR)
rate of < 35 mL/min as calculated by the CKD-EPI formula at Screening.

- For subjects who enter Part 2: Patients with a history of or a risk of parasite
infections (recent stay in tropical/subtropical areas with low hygiene standards). To
allow enrollment of a patient at risk perform stool examinations for ova or parasites
and demonstrate absence of infection first.

- Diseases with possible signs and symptoms of urticaria or angioedema such as
urticarial vasculitis, erythema multiforme, cutaneous mastocytosis (urticaria
pigmentosa), and hereditary or acquired angioedema (e.g. due to C1 inhibitor
deficiency).

CSU patients • Clearly defined underlying etiology for chronic urticaria symptoms other
than CSU. This includes the following: CSU patients should not have inducible urticaria
forms impacting their daily symptoms in a relevant way, such as but not limited to
urticaria factitia, cold-, heat-, solar-, pressure-, delayed pressure, aquagenic-,
cholinergic-, or contact-urticaria.

CINDU patients (cold and cholinergic urticaria)

• Clearly defined underlying etiology for chronic urticaria symptoms other than CINDU. This
includes the following: CINDU patients should not have spontaneous urticaria impacting
their symptoms in a relevant way.

Other protocol-defined inclusion/exclusion criteria may apply .