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    Summary
    EudraCT Number:2022-001786-12
    Sponsor's Protocol Code Number:CDX0159-08
    National Competent Authority:Germany - PEI
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2022-12-28
    Trial results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedGermany - PEI
    A.2EudraCT number2022-001786-12
    A.3Full title of the trial
    A Phase 2 Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of Barzolvolimab (CDX-0159) in Adults with Active Eosinophilic Esophagitis (The "EvolvE" Study)
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    A Placebo-Controlled Study to Assess the Efficacy and Safety of Barzolvolimab (CDX-0159) in Adults with Active Eosinophilic Esophagitis (The "EvolvE" Study)
    A.3.2Name or abbreviated title of the trial where available
    The "EvolvE" Study
    A.4.1Sponsor's protocol code numberCDX0159-08
    A.5.2US NCT (ClinicalTrials.gov registry) numberNCT05774184
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorCelldex Therapeutics, Inc.
    B.1.3.4CountryUnited States
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportCelldex Therapeutics, Inc.
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationCelldex Therapeutics, Inc.
    B.5.2Functional name of contact pointClinical Trials Information
    B.5.3 Address:
    B.5.3.1Street Address53 Frontage Road, Suite 220
    B.5.3.2Town/ cityHampton
    B.5.3.3Post codeNJ 08827
    B.5.3.4CountryUnited States
    B.5.6E-mailclinicaltrials@celldex.com
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation No
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product namebarzolvolimab
    D.3.2Product code CDX-0159
    D.3.4Pharmaceutical form Solution for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPSubcutaneous use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNbarzolvolimab
    D.3.9.1CAS number 2438203-51-9
    D.3.9.2Current sponsor codeCDX-0159
    D.3.9.3Other descriptive nameHumanised IgG1k monoclonal antibody against KIT
    D.3.9.4EV Substance CodeSUB219179
    D.3.10 Strength
    D.3.10.1Concentration unit mg/ml milligram(s)/millilitre
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number150
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin No
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) Yes
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) No
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product No
    D.3.11.3.3Tissue Engineered Product No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product No
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    D.8 Placebo: 1
    D.8.1Is a Placebo used in this Trial?Yes
    D.8.3Pharmaceutical form of the placeboSolution for injection
    D.8.4Route of administration of the placeboSubcutaneous use
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Eosinophilic esophagitis (EoE)
    E.1.1.1Medical condition in easily understood language
    Eosinophilic esophagitis (EoE) is an inflammatory disease of the food pipe that involves eosinophils, a type of white blood cell.
    E.1.1.2Therapeutic area Diseases [C] - Digestive System Diseases [C06]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.1
    E.1.2Level LLT
    E.1.2Classification code 10064220
    E.1.2Term Eosinophilic esophagitis
    E.1.2System Organ Class 10017947 - Gastrointestinal disorders
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To evaluate efficacy of barzolvolimab, compared to placebo, in reducing esophageal intraepithelial infiltration of mast cells as assessed by peak esophageal intraepithelial mast cell (PMC) count in EoE patients
    E.2.2Secondary objectives of the trial
    • To evaluate the efficacy of barzolvolimab, compared to placebo, in reducing symptoms of dysphagia as assessed by dysphagia symptom questionnaire (DSQ) in EoE patients
    • To evaluate efficacy of barzolvolimab, compared to placebo, in reducing esophageal intraepithelial infiltration of eosinophils as assessed by peak esophageal intraepithelial eosinophil (PEC) count in EoE patients
    • To evaluate the safety profile of barzolvolimab in EoE patients
    E.2.3Trial contains a sub-study Yes
    E.2.3.1Full title, date and version of each sub-study and their related objectives
    Dense Pharmacokinetic and Biomarker Sampling:

    In addition to the PK sampling for all patients as per the protocol scheldue of assessments, dense sampling will occur at select sites during the Active Treatment Phase. This sampling will provide supplementary PK and PD data to better characterize the absorption of barzolvolimab and the kinetics of tryptase suppression in the study population. Dense sampling will be conducted at select centers in approximately 12 patients who consent.
    E.3Principal inclusion criteria
    1. Read, understood, and provided written informed consent, after the nature of the study has been fully explained.
    2. Male or female, ≥ 18 years of age at the time of signing the informed consent.
    3. Documented diagnosis of EoE by endoscopy.
    4. Esophageal intraepithelial eosinophilic infiltration, with peak esophageal intraepithelial eosinophil count (PEC) of ≥ 15 per high power field (hpf) from at least 2 of 3 levels (proximal, mid, and distal) of the esophagus at the Screening/Baseline esophagogastroduodenoscopy (EGD) at the Screening Visit.
    5. Must be symptomatic, defined as:
    a. History (by patient report) of an average of at least 2 days per week with dysphagia with intake of solid foods during 1 month prior to the Screening
    Visit and
    b. At least 4 days with dysphagia (answer of “Yes” to DSQ Question #2) within the last 2 weeks immediately prior to randomization.
    6. Must have been on a stable diet which includes solid foods for at least 2 months prior to the Screening Visit and throughout the study.
    Note: Stable diet is defined as no initiation or elimination of single or multiple food groups or reintroduction of previously eliminated food groups.
    7. Have had inadequate response to or is inappropriate for and/or intolerant to a standard-of-care treatment for EoE (e.g., PPI, swallowed topical corticosteroids, or dietary elimination) based on the investigator’s clinical judgment.
    E.4Principal exclusion criteria
    1. Diagnosis of hypereosinophilic syndrome or Churg-Strauss syndrome (or eosinophilic granulomatosis with polyangiitis).
    2. History of a clinicopathologic diagnosis of eosinophilic gastritis or eosinophilic duodenitis.
    3. Known active Helicobacter pylori infection.
    4. History of coagulation disorders or esophageal varices.
    5. History of achalasia, Crohn’s disease, ulcerative colitis or celiac disease.
    6. Esophageal dilation within 3 months prior to the Screening Visit or a planned/elective esophageal dilation anytime during the study.
    7. Avoiding solid foods or using feeding tube.
    8. Non-biologic systemic (oral or injectable) agents within 4 weeks or 5 half-lives, whichever is longer, prior to the Screening Visit.
    9. Biologic therapy within 5 half-lives (or detectable serum level), prior to the Screening Visit.
    10. Diagnosis of idiopathic anaphylaxis or other severe allergic reactions that in the opinion of the investigator, could increase the patient’s risk for systemic hypersensitivity reactions; or any known contraindications or hypersensitivity to any component of study treatments, drugs of similar chemical classes (i.e., to murine, chimeric or human antibodies) or antihistamines.
    11. Women who are pregnant or nursing. All female patients with reproductive potential must have a negative pregnancy test prior to starting study treatment.
    E.5 End points
    E.5.1Primary end point(s)
    • Absolute change from baseline to Week 12 in the PMC/high power field (hpf)
    E.5.1.1Timepoint(s) of evaluation of this end point
    Screening (baseline), week 12
    E.5.2Secondary end point(s)
    • Absolute changes from baseline to Week 12 in DSQ
    • Absolute change from baseline to Week 12 in PMC/hpf among patients with baseline PMC ≥ 12/hpf
    • Absolute change from baseline to Week 12 in PEC/hpf
    • Percent (%) change from baseline to week 12 in PMC7hpf
    • Incidence of TEAEs
    E.5.2.1Timepoint(s) of evaluation of this end point
    Screening (baseline), week 12

    TEAEs: continuously until end of study visit.
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic Yes
    E.6.7Pharmacodynamic Yes
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others No
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled Yes
    E.8.1.1Randomised Yes
    E.8.1.2Open No
    E.8.1.3Single blind No
    E.8.1.4Double blind Yes
    E.8.1.5Parallel group Yes
    E.8.1.6Cross over No
    E.8.1.7Other No
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo Yes
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial2
    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.8.4.1Number of sites anticipated in Member State concerned4
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA20
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Australia
    Canada
    United Kingdom
    United States
    Germany
    Italy
    Poland
    Spain
    E.8.7Trial 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
    LVLS
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years2
    E.8.9.1In the Member State concerned months3
    E.8.9.1In the Member State concerned days
    E.8.9.2In all countries concerned by the trial years2
    E.8.9.2In all countries concerned by the trial months5
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) No
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 60
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 15
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations Yes
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception Yes
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state6
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 24
    F.4.2.2In the whole clinical trial 75
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    None
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2023-03-15
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2023-03-31
    P. End of Trial
    P.End of Trial StatusOngoing
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