Skip to content

A Multiple Ascending Dose, Phase 1b Study of YH35324 in Atopic Healthy Subjects or Subjects With Allergic Diseases

A Randomized, Double-Blind, Placebo/Active Controlled, Multiple Ascending Dose, Phase 1b Study to Evaluate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics Following Subcutaneous Injections of YH35324 in Atopic Healthy Subjects or Subjects With Allergic Diseases

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05564221
Enrollment
46
Registered
2022-10-03
Start date
2022-11-01
Completion date
2024-11-28
Last updated
2025-01-24

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

Conditions

Adult Subjects With Allergic Diseases, Atopic Healthy Subjects

Keywords

GI-301, YH35324, Allergic disease

Brief summary

This study aims to evaluate the safety, tolerability, pharmacokinetic (PK) and pharmacodynamic (PD) profiles following multiple subcutaneous injections of YH35324 in healthy subjects or subjects with allergic diseases, who have atopy.

Detailed description

YH35324 is a drug under development as a novel therapeutic agent for various IgE-mediated allergic diseases. Since YH35324 has a high binding affinity to human IgE, it prevents serum IgE from binding to receptors on mast cells and basophil, thereby inhibiting histamine release caused by degranulation when exposed to allergens. This study aims to evaluate the safety, tolerability, pharmacokinetic (PK) and pharmacodynamic (PD) profiles following multiple subcutaneous injections of YH35324 in healthy subjects or subjects with allergic diseases, who have atopy.

Interventions

Subcutaneous injection of YH35324

DRUGPlacebo

Subcutaneous injection of None of active ingredient

DRUGOmalizumab

Subcutaneous injection of Omalizumab

Sponsors

Yuhan Corporation
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Masking description

As the YH35324 group and placebo group will be double-blinded, YH35324 and placebo will have the same appearance and packaging. Therefore, the double-blind will apply to the subjects, investigators, study coordinators, and study personnel including study pharmacists. The active control omalizumab has a different appearance and packaging from YH35324 and placebo, and will be administered in an open-label manner.

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Male or female adults aged ≥ 19 to ≤ 55 years(Cohort 5, Mald or female adults ≥ 19) * Serum total IgE level ≥ 30 IU/mL or 30 to 700 IU/mL or \>700IU/mL(Not Applicable for Cohort 5) * Meeting the following cohort-specific disease severity criteria \[Cohorts 1-4\]: Healthy subjects without any pathological symptoms or findings from medical examination, or subjects with a history of mild allergic diseases (allergic rhinitis, atopic dermatitis, food allergy, urticaria, or allergic asthma) \[Cohort 5\]: Subject who have been diagnosed with moderate to severe atopic dermatitis

Exclusion criteria

* History of malignancy * Positive drug screen result * transaminase (AST) or alanine transaminase (ALT) level \> 2 X the upper limit of normal * Estimated glomerular filtration rate (eGFR) \< 60 mL/min/1.73 m2 using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formula * Allergy immunotherapy initiated or changed within 6 months prior to randomization(For Cohort 5, within 12 months prior to randomization) * History of participation in another clinical trial within 6 months prior to randomization

Design outcomes

Primary

MeasureTime frameDescription
Occurrence and severity of adverse events (AEs)Occurrence and severity of adverse events will be observed for 141 days after administration in Cohorts 1 to 5To evaluate the safety and tolerability following multiple administrations of YH35324

Secondary

MeasureTime frameDescription
Area Under the Serum Concentration-Time Curve during dosing interval at steady-state (AUCtau)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Change in Eczema Area and Severity Index (EASI)Change in Eczema Area and Severity Index (EASI) will be observed for 141 days after administration in Cohorts 5To explore the clinical efficacy following multiple administrations of YH35324
Change in Validated Investigator Global Assessment (vIGA-AD)Change in Validated Investigator Global Assessment (vIGA-AD) will be observed for 141 days after administration in Cohorts 5To explore the clinical efficacy following multiple administrations of YH35324
Change in SCORing Atopic Dermatitis (SCORAD)Change in SCORing Atopic Dermatitis (SCORAD) will be observed for 141 days after administration in Cohorts 5To explore the clinical efficacy following multiple administrations of YH35324
Change in Pruritus-Numerical Rating Scale (NRS)Change in Pruritus-Numerical Rating Scale (NRS) will be observed for 141 days after administration in Cohorts 5To explore the clinical efficacy following multiple administrations of YH35324
Change in body surface area (BSA) of atopic dermatitis involvementChange in body surface area (BSA) of atopic dermatitis involvement will be observed for 141 days after administration in Cohorts 5To explore the clinical efficacy following multiple administrations of YH35324
Number of days of rescue treatment (TCS or TCI) usedNumber of days of rescue treatment (TCS or TCI) used will be observed for 141 days after administration in Cohorts 5To explore the clinical efficacy following multiple administrations of YH35324
Area Under the Serum Concentration-Time Curve from Zero to the Time of the Last Quantitative Concentration (AUClast)Serum concentrations of YH35324 will be observed for 141 days after administrationin in Cohorts 1 to 4To evaluate the PK profile of YH35324
Area Under the Serum Concentration-Time Curve from Zero to Infinity (AUCinf)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Maximum Serum Concentration(Cmax)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Time to Maximum Serum Concentration (Tmax)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Terminal Elimination Rate Constant, Apparent Terminal Elimination Half-life (t1/2)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Apparent Serum Clearance (CL/F)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Apparent Volume of Distribution (Vz/F)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Maximum Serum Concentration at steady-state (Cmax,ss)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Time to Maximum Serum Concentration at steady-state (Tmax,ss)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Accumulation ratio (Rac)Serum concentrations of YH35324 will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PK profile of YH35324
Change in serum free IgE levelChange in serum Free IgE will be observed for 141 days after administration in Cohorts 1 to 5To evaluate the PD profile on serum IgE following multiple administrations of YH35324
Change in serum total IgE levelChange in serum Total IgE will be observed for 141 days after administration in Cohorts 1 to 4To evaluate the PD profile on serum IgE following multiple administrations of YH35324
Serum concentrations of YH35324Serum concentrations of YH35324 will be observed for 99 days after administration in Cohorts 5To evaluate the PK profile of YH35324

Other

MeasureTime frameDescription
Changes in serum allergen specific IgE levelChanges in allergen-induced serum allergen specific IgE level will be observed for 141 days after administration in Cohorts 1 to 5To explore inhibition on allergens (allergy antigens) following multiple administrations of YH35324
Incidence of serum anti-YH35324 antibodiesIncidence of serum Anti-YH35324 antibodies will be observed for 141 Days after administration in Cohorts 1 to 5To explore the immunogenicity following multiple administrations of YH35324
Changes in serum Thymus and Activation-Regulated Chemokine (TARC, CCL17) and Macrophage-Derived Chemokine (MDC, CCL22)Changes in serum Thymus and Activation-Regulated Chemokine and Macrophage-Derived Chemokine will be observed for 141 Days after administration in Cohorts 5To explore the PD following multiple administrations of YH35324
Changes in serum cytokines (IL-4, IL-5, IL-10, IL-18, IL-22, IL-13, IL-31, IL-33, and IFN-γ) levelsChanges in serum cytokines levels will be observed for 141 Days after administration in Cohorts 5To explore the PD following multiple administrations of YH35324
Changes in allergen-induced skin prick wheal responseChanges in allergen-induced skin prick wheal response will be observed for 113 days in Cohorts 1 to 5To explore inhibition on allergens (allergy antigens) following multiple administrations of YH35324
Changes in FcεRI expression on basophil surfaceChanges in FcεRI expression will be observed for 141days after administrationin in Cohorts 1 to 4To explore the PD profile on serum basophil following multiple administrations of YH35324

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026