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Evaluation of NM26-2198 in Healthy Subjects and in Patients With Moderate-to-severe Atopic Dermatitis (AD)

A Randomized, Double-blind, Placebo-controlled, Single- and Multiple-ascending Dose Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Immunogenicity, Pharmacodynamics and Exploratory Clinical Activity of NM26-2198 in Healthy Volunteers and in Adult Patients With Atopic Dermatitis

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05859724
Enrollment
126
Registered
2023-05-16
Start date
2023-05-10
Completion date
2024-10-17
Last updated
2026-07-06

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

Conditions

Atopic Dermatitis

Brief summary

This is a randomized, double-blind, placebo-controlled, single- and multiple ascending dose study of subcutaneous (SC) administration of NM26-2198 in healthy volunteers and adult patients with moderate to-severe AD to evaluate the safety, tolerability, pharmacokinetics (PK), and immunogenicity of single (SAD) and multiple doses (MAD) of NM26-2198.

Interventions

BIOLOGICALNM26-2198

IL-4R/IL-31 bispecific antibody for subcutaneous administration

OTHERPlacebo

Placebo for NM26-2198

Sponsors

Yellow Jersey Therapeutics AG
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

1. SAD: Non-Asian ethnicity with grandparents and parents of non-Asian descent or Japanese descent having all four Japanese grandparents born in Japan. 2. SAD and MAD in Healthy Volunteers: Male or female aged 18 to 55 years; MAD: Male or female ≥18 years of age. 3. ALL COHORTS: Weight of 45 kg to 100 kg and BMI of 18.0 to 30.0 kg/m2. 4. SAD and MAD in Healthy Volunteers: Non-childbearing, non-breastfeeding females or males willing to use double barrier contraception or abstention from sex and sperm donation during the study; MAD: Males willing to use double barrier contraception or abstention from sex and sperm donation during the study; non-childbearing females or females of childbearing potential using protocol-defined method contraception, and who is not pregnant, lactating, or breastfeeding. 5. MAD: Diagnosis of chronic AD. 6. MAD: EASI score ≥16. 7. MAD: vIGA-AD™ score of ≥3. 8. MAD: Atopic lesions cover ≥10% of body surface area (BSA). 9. MAD: PP-NRS score ≥4. 10. MAD: Daily use of non-prescription emollient. Note: Other protocol-defined Inclusion criteria apply.

Exclusion criteria

1. SAD and MAD in Healthy Volunteers: Any clinically-relevant medical history or lab abnormality, including positive test for SARS-CoV-2, Hepatitis B or C, or HIV; MAD: Clinically-significant, abnormal laboratory findings, or positive test for SARS-CoV-2, Hepatitis B or C, or HIV. 2. ALL COHORTS: Clinically important ECG abnormalities or history/evidence thereof. 3. SAD and MAD in Healthy Volunteers: Use of prescription or non-prescription medications (except occasional use of paracetamol). 4. MAD: Diagnosis of protocol-specified skin diseases other than AD, or history of other significant skin condition that could interfere with study assessments. 5. MAD: History or ongoing allergy/hypersensitivity or history, or history of hypersensitivity to biological drugs. 6. MAD: Recent receipt of immunoglobulin or blood products. 7. MAD: Recent treatment with protocol-specified investigational treatments, or any prior treatment with dupilumab, tralokinumab, lebrikizumab, nemolizumab, or other protocol-specified drugs. 8. MAD: AD with recent ocular involvement requiring chronic ocular corticosteroid treatment. 9. MAD: Chronic pruritis due to conditions other than AD. 10. MAD: Acute AD superinfection, recent superficial skin infection, or other chronic/acute infection requiring protocol-defined treatments. 11. MAD: Recent use of sedating antihistimines, systemic corticosteroids, cytotoxic treatments, other immunosuppressive/immunomodulating agents, and other protocol-specified prohibited medications. 12. MAD: Recent topical corticosteroid or prescription moisturizer use. Note: Other protocol-defined

Design outcomes

Primary

MeasureTime frameDescription
Percentage of participants with Treatment Emergent Adverse Events (TEAEs) [SAD]First dose through end of study (Day 57)TEAEs defined as AEs and SAEs developing or worsening during treatment period (time from the first dose of study drug up to the end of study visit \[Day 57 in SAD\]), and includes findings from vital signs, electrocardiogram (ECG), clinical laboratory tests, physical examinations, and injection site evaluations.
Percentage of participants with Treatment Emergent Adverse Events (TEAEs) [MAD]First dose through end of study (Day 85)TEAEs defined as AEs and SAEs developing or worsening during treatment period (time from the first dose of study drug up to the end of study visit \[Day 85 in MAD\]), and includes findings from vital signs, electrocardiogram (ECG), clinical laboratory tests, physical examinations, and injection site evaluations.

Secondary

MeasureTime frameDescription
Pharmacokinetics of NM26-2198: Peak Concentration (Cmax) [SAD]Pre-dose on Day 1 through Day 57Mean maximum concentration of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Peak Concentration (Cmax) [MAD]Pre-dose on Day 1 through Day 85Mean maximum concentration of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Trough Concentration (Ctrough) [MAD]Pre-dose on Day 1 through Day 85Mean trough concentrations of NM26-2198 with multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Time of Peak Concentration (Tmax) [SAD]Pre-dose on Day 1 through Day 57Mean time of maximum concentration of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Time of Peak Concentration (Tmax) [MAD]Pre-dose on Day 1 through Day 85Mean time of maximum concentration of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Last Area Under the Curve (AUClast) [SAD]Pre-dose on Day 1 through Day 57Mean area under the curve from the time of dosing to the last measurable concentration of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Last Area Under the Curve (AUClast) [MAD]Pre-dose on Day 1 through Day 85Mean area under the curve from the time of dosing to the last measurable concentration of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Area Under the Curve During the Dosing Interval (AUCtau) [SAD]Pre-dose on Day 1 through Day 7Mean area under concentration-time curve over dosing interval of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Area Under the Curve During the Dosing Interval (AUCtau) [MAD]Pre-dose on Day 1 through Day 29Mean area under concentration-time curve over dosing interval of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Estimated Total Exposure (AUCinf) [SAD]Pre-dose on Day 1 through Day 57Mean estimated total exposure to NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Estimated Total Exposure (AUCinf) [MAD]Pre-dose on Day 1 through Day 85Mean estimated total exposure to NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Time-Averaged Concentration (AUC%extrap) [SAD]Pre-dose on Day 1 through Day 57Mean time-averaged concentration of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Time-Averaged Concentration (AUC%extrap) [MAD]Pre-dose on Day 1 through Day 85Mean time-averaged concentration of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Time of last quantifiable concentration (tlast) [SAD]Pre-dose on Day 1 through Day 57Mean estimated time to last quantificable concentration of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Time of last quantifiable concentration (tlast) [MAD]Pre-dose on Day 1 through Day 85Mean estimated time to last quantificable concentration of NM26-2198 after multiple dose administration in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Terminal Elimination Rate (λz) [SAD]Pre-dose on Day 1 through Day 57Mean terminal elimination rate of NM26-2198 after single dose administrations in healthy subjects.
Pharmacokinetics of NM26-2198: Terminal Elimination Rate (λz) [MAD]Pre-dose on Day 1 through Day 85Mean terminal elimination rate of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Terminal elimination half-life (t1/2) [SAD]Pre-dose on Day 1 through Day 57Mean terminal elimination half-life of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Terminal elimination half-life (t1/2) [MAD]Pre-dose on Day 1 through Day 85Mean terminal elimination half-life of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Total body clearance (CL/F) [SAD]Day 1Mean total body clearance of NM26-2198 after single dose administration in healthy subjects.
Pharmacokinetics of NM26-2198: Total body clearance (CL/F) [MAD]Day 1 and Day 22Mean total body clearance of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Apparent volume of distribution (Vz/F) [SAD]Day 1Mean apparent volume of distribution of NM26-2198 after single dose administrations in healthy subjects.
Pharmacokinetics of NM26-2198: Apparent volume of distribution (Vz/F) [MAD]Day 1 and Day 22Mean apparent volume of distribution of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Accumulation ratio of last dose Cmax (Racc,cmax) [MAD]Day 1 through Day 22Mean accumulation ratio of last dose Cmax of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Pharmacokinetics of NM26-2198: Accumulation ratio of last dose AUCtau (Racc,AUCtau) [MAD]Day 1 through Day 22Mean accumulation ratio of last dose AUCtau of NM26-2198 after multiple dose administrations in healthy volunteers and in patients with AD.
Percentage of subjects developing treatment-emergent anti-drug antibodies (ADAs) [SAD]Pre-dose on Day 1 through Day 57
Percentage of subjects developing treatment-emergent anti-drug antibodies (ADAs) [MAD]Pre-dose on Day 1 through Day 85
Percentage of subjects developing treatment-enhanced anti-drug antibodies (ADAs) [SAD]Pre-dose on Day 1 through Day 57
Percentage of subjects developing treatment-enhanced anti-drug antibodies (ADAs) [MAD]Pre-dose on Day 1 through Day 85
Mean ADA titers [SAD]Pre-dose on Day 1 through Day 57
Mean ADA titers [MAD]Pre-dose on Day 1 through Day 85

Countries

Canada, Germany, Poland, United States

Contacts

STUDY_DIRECTORYellow Jersey Therapeutics AG Clinical trial

Yellow Jersey Therapeutics AG

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 7, 2026