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A Phase 2 Randomized, Double-Blind, Placebo-Controlled, Dose ranging Study to Assess the Efficacy and Safety of CDX-0159 in Patients with Chronic Inducible Urticaria

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2021-006447-95-DE
Enrollment
180
Registered
2022-05-24
Start date
2022-09-07
Completion date
Unknown
Last updated
2024-12-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Inducible Urticaria MedDRA version: 23.0 Level: LLT Classification code 10012499 Term: Dermatographic urticaria System Organ Class: 10040785 - Skin and subcutaneous tissue disorders

Interventions

Product Name: CDX-0159 Product Code: CDX-0159 Pharmaceutical Form: Suspension for injection INN or Proposed INN: CDX-0159 CAS Number: 2438203-51-9 Current Sponsor code: CDX-0159 Other descriptive name

Sponsors

Celldex Therapeutics
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Males and females, >/= 18 years of age. 2.Diagnosis of ColdU or SD >/= 3 months. 3.Diagnosis of chronic ColdU or SD despite the use of a stable regimen of second generation non-sedating H1-antihistamine as defined by: a.The presence of recurrent pruritic wheals with or without angioedema for >/= 6 weeks at any time prior to Visit 1 despite the use of H1 antihistamines. b.Must be on a stable regimen of second generation non-sedating H1-antihistamine for >/= 4 weeks prior to study treatment. c.UCT of =65 years) yes F.1.3.1 Number of subjects for this age range 18

Exclusion criteria

Exclusion criteria: 1.Women who are pregnant or nursing. 2.Chronic spontaneous urticaria or other forms of CIndU besides ColdU or SD. 3.Active, pruritic skin condition in addition to CIndU. 4.Medical condition that would cause additional risk or interfere with study procedures. 5.Known HIV, hepatitis B or hepatitis C infection. 6.Vaccination of a live vaccine within 2 months prior to study treatment (subjects must agree to avoid vaccination during the study). Inactivated vaccines are allowed such as seasonal influenza injection or COVID-19 vaccine. 7.History of anaphylaxis

Design outcomes

Primary

MeasureTime frame
Main Objective: To evaluate the efficacy of different dose regimens of CDX-0159 compared to placebo, in achieving a negative provocation test in patients with H1AH refractory CIndU in each subtype (ColdU and SD). ;Secondary Objective: •To evaluate efficacy of different dose regimens of CDX-0159 compared to placebo, in improving provocation thresholds and itch triggered by provocation test in each CIndU subtype. •To evaluate efficacy of different dose regimens of CDX-0159 compared to placebo, in achieving a negative provocation test and improving itch triggered by provocation test in combined CIndU patients. •To evaluate the safety profile of different dose regimens of CDX-0159 compared to placebo, in each CIndU subtype, and combined CIndU patients. ;Primary end point(s): •Proportion (%) of patients with a negative provocation test at Week 12 in the ColdU subtype cohort oFor ColdU patients, a negative provocation test is defined as absence of wheals at the provocation site within 10 min after provocation using TempTest® •Proportion (%) of patients with a negative provocation test at Week 12 in the SD subtype cohort oFor SD patients, a negative provocation test is defined as absence of wheals at the provocation site within 10 min after provocation using the FricTest® ;Timepoint(s) of evaluation of this end point: Week 12

Secondary

MeasureTime frame
Secondary end point(s): •Mean change from baseline to Week 12 in CTT in the ColdU subtype cohort •Mean change from baseline to Week 12 in CFT in the SD subtype cohort •Mean change from baseline to Week 12 in WI-NRSprovo in the ColdU subtype cohort •Mean change from baseline to Week 12 in WI-NRSprovo in the SD subtype cohort •Proportion (%) of patients with a negative provocation test at Week 12 in the combined CIndU subtype cohorts •Mean change from baseline to Week 12 in WI-NRSprovo in the combined CIndU subtype cohorts •Proportion (%) of patients experiencing TEAEs over the 20-week treatment period by subtype cohort and in the combined CIndU subtype cohorts ;Timepoint(s) of evaluation of this end point: Week 12

Countries

Belgium, Bulgaria, Estonia, Georgia, Germany, Hungary, Latvia, Lithuania, Poland, Serbia, South Africa, Spain, United States

Contacts

Public ContactPhilip Golden

Celldex Therapeutics, Inc.

clinoperations@celldex.com17812348713

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026