A Study Evaluating APG777 in Atopic Dermatitis

NCT ID: NCT06395948

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2

Total Enrollment

470 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-29

Study Completion Date

2028-06-30

Brief Summary

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This is a two-part study that will evaluate the safety and efficacy of APG777 in participants with moderate-to-severe Atopic Dermatitis (AD). Part A (Proof-of-concept) and Part B (Dose-regimen Finding) will evaluate the safety and efficacy of various induction and maintenance dose regimens of APG777 compared to placebo. The study duration for any individual participant will be up to 106 weeks which includes: screening, induction, maintenance, and post-treatment follow-up periods. Participants randomized in Part A are not permitted to participate in Part B.

Detailed Description

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Conditions

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Atopic Dermatitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
The Sponsor's study staff will also be blinded in the study.

Study Groups

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Part A: Induction Period: APG777

Participants will receive APG777 per protocol defined dosing regimen

Group Type EXPERIMENTAL

APG777

Intervention Type DRUG

APG777 subcutaneous injection

Part A: Induction Period: Placebo

Participants will receive matching Placebo injections per protocol defined dosing regimen

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matching placebo subcutaneous injection

Part A: Maintenance Period: APG777

Participants will receive 1 of 2 maintenance regimens of APG777 per protocol defined dosing regimen

Group Type EXPERIMENTAL

APG777

Intervention Type DRUG

APG777 subcutaneous injection

Part B: Induction Period: APG777

Participants will receive APG777 in 1 of 3 regimens per protocol defined dosing regimen

Group Type EXPERIMENTAL

APG777

Intervention Type DRUG

APG777 subcutaneous injection

Part B: Induction Period: Placebo

Participants will receive matching placebo injections per protocol defined dosing regimen

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matching placebo subcutaneous injection

Part B: Maintenance Period: APG777

Participants will receive APG777 per protocol defined dosing regimen

Group Type EXPERIMENTAL

APG777

Intervention Type DRUG

APG777 subcutaneous injection

Interventions

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APG777

APG777 subcutaneous injection

Intervention Type DRUG

Placebo

Matching placebo subcutaneous injection

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Have a diagnosis of AD that has been present for \>=1 year prior to the Screening visit
* Moderate-to-severe AD at Screening and Baseline visits
* History of inadequate response to treatment with topical medications, or medical determination that topical therapies are inadvisable
* Applied a stable dose of non-medicated over-the-counter emollient/moisturizer of their choice on their skin for \>=14 days prior to Baseline visit and agrees to continue using the same moisturizer throughout the study except the day of the study visits.
* Have completed itch questionnaires in the electronic diary for \>=4 of 7 days prior to Baseline visit

Exclusion Criteria

* Participation in a prior study with APG777.
* Prior treatment with protocol-specified monoclonal antibodies (mAbs)
* Has used any AD-related topical medications within 7 days prior to Baseline visit.
* Has used systemic treatments (other than biologics) and/or phototherapies and/or laser therapy that could affect AD within 4 weeks prior to Baseline visit
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Apogee Therapeutics, Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Investigational Site

Fountain Valley, California, United States

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Los Angeles, California, United States

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San Diego, California, United States

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New Haven, Connecticut, United States

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Coral Gables, Florida, United States

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Jacksonville, Florida, United States

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Margate, Florida, United States

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Douglasville, Georgia, United States

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Chicago, Illinois, United States

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Skokie, Illinois, United States

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West Lafayette, Indiana, United States

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Bowling Green, Kentucky, United States

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Rockville, Maryland, United States

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Detroit, Michigan, United States

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Troy, Michigan, United States

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Portsmouth, New Hampshire, United States

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New York, New York, United States

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Wilmington, North Carolina, United States

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Boardman, Ohio, United States

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Mason, Ohio, United States

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Portland, Oregon, United States

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Pittsburgh, Pennsylvania, United States

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Charleston, South Carolina, United States

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Nashville, Tennessee, United States

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Dallas, Texas, United States

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Dallas, Texas, United States

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San Antonio, Texas, United States

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Norfolk, Virginia, United States

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Mill Creek, Washington, United States

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Calgary, Alberta, Canada

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Calgary, Alberta, Canada

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Edmonton, Alberta, Canada

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Vancouver, British Columbia, Canada

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Winnipeg, Manitoba, Canada

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Fredericton, New Brunswick, Canada

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Ajax, Ontario, Canada

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Markham, Ontario, Canada

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Mississauga, Ontario, Canada

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Ottawa, Ontario, Canada

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Peterborough, Ontario, Canada

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Toronto, Ontario, Canada

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Toronto, Ontario, Canada

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Toronto, Ontario, Canada

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Montreal, Quebec, Canada

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Québec, Quebec, Canada

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Prague, , Czechia

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Prague, , Czechia

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Prague, , Czechia

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Prague, , Czechia

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Prague, , Czechia

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Rouen, Normandy, France

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Martigues, , France

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Nantes, , France

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Freiburg im Breisgau, Baden-Wurttemberg, Germany

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Heidelberg, Baden-Wurttemberg, Germany

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Tübingen, Baden-Wurttemberg, Germany

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Augsburg, Bavaria, Germany

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München, Bavaria, Germany

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Blankenfelde-Mahlow, Brandenburg, Germany

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Darmstadt, Hesse, Germany

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Frankfurt am Main, Hesse, Germany

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Bad Bentheim, Lower Saxony, Germany

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Münster, North Rhine Westfalia, Germany

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Dresden, Saxony, Germany

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Kiel, Schleswig-Holstein, Germany

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Lübeck, Schleswig-Holstein, Germany

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Berlin, , Germany

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Hamburg, , Germany

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Hamburg, , Germany

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Debrecen, Hajdú-Bihar, Hungary

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Budapest, , Hungary

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Szeged, , Hungary

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Wroclaw, Lower Silesian Voivodeship, Poland

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Wroclaw, Lower Silesian Voivodeship, Poland

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Lublin, Lublin Voivodeship, Poland

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Warsaw, Masovian Voivodeship, Poland

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Warsaw, Masovian Voivodeship, Poland

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Gdansk, Pomeranian Voivodeship, Poland

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Katowice, Silesian Voivodeship, Poland

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Sosnowiec, Silesian Voivodeship, Poland

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Szczecin, West Pomeranian Voivodeship, Poland

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Krakow, Woj. Małopolskie, Poland

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Lodz, Łódź Voivodeship, Poland

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Santiago de Compostela, A Coruña, Spain

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Badalona, Barcelona, Spain

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Las Palmas de Gran Canaria, Canary Islands, Spain

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Alicante, , Spain

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Barcelona, , Spain

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Madrid, , Spain

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Madrid, , Spain

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Zaragoza, , Spain

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Salford, Greater Manchester, United Kingdom

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Dudley, West Midlands, United Kingdom

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London, , United Kingdom

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Countries

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United States Canada Czechia France Germany Hungary Poland Spain United Kingdom

Other Identifiers

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APG777-201

Identifier Type: -

Identifier Source: org_study_id