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APG777

Phase 2

Atopic Dermatitis | Small molecule | Dermatology |Apogee Therapeutics, Inc.|Trials Updated: Oct 13, 2026

APG777 development status

Highest phase Phase 2
Registered trials 4 across 1 sponsor since May 2024

APG777 target and mechanism

Molecular targetIL-13
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials4
Total Enrollment937

FDA Designations

No designations recorded

APG777 clinical trials

APG777 · 4 trials · 2 indications

Phase 2 2Phase 1 2
NCT07003425A Long-term Safety and Efficacy Study Evaluating APG777 in Atopic DermatitisAtopic Dermatitis
RECRUITING350 Analytics
NCT06395948A Study Evaluating APG777 in Atopic DermatitisAtopic Dermatitis
ACTIVE NOT_RECRUITING470 Analytics
PHASE2RECRUITING
A Long-term Safety and Efficacy Study Evaluating APG777 in Atopic Dermatitis
Atopic DermatitisUnlock trial analytics
PHASE2ACTIVE NOT_RECRUITING
A Study Evaluating APG777 in Atopic Dermatitis
Atopic DermatitisUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Treatment Emergent Adverse Events
Up to 3 years
Part A: Percent Change From Baseline in Eczema Area and Severity Index (EASI)
Baseline and at Week 16
Part B: Proportion of participants who achieve EASI 75 at Week 16
At Week 16
Number of Participants with Treatment Emergent Adverse Events (TEAEs)
Up to 24 weeks
Number of Participants with Abnormal Laboratory Findings
Up to 52 weeks
Number of Participants with Abnormal Vital Signs
Up to 52 weeks
Number of Participants with Abnormal Electrocardiograms (ECGs)
Up to 52 weeks
Number of Participants with Abnormal Physical Examination Findings
Up to 52 weeks

Secondary Endpoints

Percentage of Participants who achieve Eczema Area and Severity Index (EASI) 50, 75, 90, and 100 calculated based on Parent Study Baseline
Through Extended Treatment Period, an average of 2 years
Percentage of Participants who achieve a validated Investigator Global Assessment Atopic Dermatitis (vIGA AD) score of 0 (clear) or 1 (almost clear) and a ≥ 2-point reduction as calculated based on Parent Study Baseline.
Through Extended Treatment Period, an average of 2 years
Percentage of Participants who achieve ≥ 4-point improvement in the weekly mean of the daily Itch Numeric Rating Scale (I-NRS) as calculated based on Parent Study Baseline
Through Extended Treatment Period, an average of 2 years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
APG777 - Long Term Extension Treatment - 12 WeeksEXPERIMENTALParticipants who achieve EASI 75 or a vIGA-AD (0, 1) at the end of the Parent Study Treatment Period, and who did not use topical rescue medication during the Parent Study will maintain the same dose regimen (dose and frequency of injections) from the Maintenance Period of the Parent Study (APG777-201).
APG777 - Long Term Extension Treatment - 24 WeeksEXPERIMENTALParticipants who achieve EASI 75 or a vIGA-AD (0, 1) at the end of the Parent Study Treatment Period, and who did not use topical rescue medication during the Parent Study, will maintain the same dose regimen (dose and frequency of injections) from the Maintenance Period of the Parent Study (APG777-201).
APG777 - Open Label Escape ArmEXPERIMENTALParticipants who do not achieve EASI 75 or a vIGA-AD (0, 1) at the end of the Parent Study Treatment Period, or who used topical rescue medication during the Parent Study, will be assigned to the open-label Escape Arm and will receive APG777 per protocol defined dosing regimen.
Part A: Induction Period: APG777EXPERIMENTALParticipants will receive APG777 per protocol defined dosing regimen
Part A: Induction Period: PlaceboPLACEBO_COMPARATORParticipants will receive matching Placebo injections per protocol defined dosing regimen
Part A: Maintenance Period: APG777EXPERIMENTALParticipants will receive 1 of 2 maintenance regimens of APG777 per protocol defined dosing regimen
Part B: Induction Period: APG777EXPERIMENTALParticipants will receive APG777 in 1 of 3 regimens per protocol defined dosing regimen
Part B: Induction Period: PlaceboPLACEBO_COMPARATORParticipants will receive matching placebo injections per protocol defined dosing regimen
Part B: Maintenance Period: APG777EXPERIMENTALParticipants will receive APG777 per protocol defined dosing regimen
APG777 + APG990EXPERIMENTALParticipants will receive protocol specified combination dose of APG777 + APG990
DupilumabACTIVE_COMPARATORParticipants will receive protocol specified dose of Dupilumab
APG777EXPERIMENTALParticipants will receive protocol specified dose of APG7777
PlaceboPLACEBO_COMPARATORParticipants will receive matching placebo

Interventions

NameTypeDescription
APG777DRUGAPG777 subcutaneous injection
PlaceboDRUGMatching placebo subcutaneous injection
APG990DRUGSC injection
DupilumabDRUGSC injection
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites78

Inclusion Criteria: * Participants who have completed the Treatment Period in a prior APG777 study and were, in the Investigator's opinion, compliant with the study protocol * Participants who, in the Investigator's opinion, would benefit from long-term treatment with APG777 * Use the same non-pres...

Countries:United StatesCanadaCzechiaFranceGermanyHungaryPolandSpainUnited KingdomAustraliaNew Zealand
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Recent Changes (Last 90 Days)

LOWOct 13, 2026NCT07003425lastUpdatePostDate: changed
LOWOct 13, 2026NCT06395948lastUpdatePostDate: changed
LOWOct 13, 2026NCT07027527lastUpdatePostDate: changed
LOWOct 13, 2026NCT06920901lastUpdatePostDate: changed
LOWOct 13, 2026NCT07003425lastUpdatePostDate: changed
LOWOct 13, 2026NCT07027527lastUpdatePostDate: changed
LOWOct 13, 2026NCT06920901lastUpdatePostDate: changed
LOWOct 13, 2026NCT06395948lastUpdatePostDate: changed
LOWOct 7, 2026NCT07027527lastUpdatePostDate: changed
LOWOct 7, 2026NCT07027527lastUpdatePostDate: changed
LOWOct 6, 2026NCT06395948lastUpdatePostDate: changed
LOWOct 6, 2026NCT06395948lastUpdatePostDate: changed
LOWSep 24, 2026NCT06920901primaryCompletionDate: changed
LOWSep 24, 2026NCT06920901primaryCompletionDate: changed
LOWSep 23, 2026NCT07003425lastUpdatePostDate: changed
LOWSep 23, 2026NCT07003425lastUpdatePostDate: changed
LOWSep 10, 2026NCT06395948lastUpdatePostDate: changed
LOWSep 10, 2026NCT06395948lastUpdatePostDate: changed
LOWSep 8, 2026NCT07003425lastUpdatePostDate: changed
LOWSep 8, 2026NCT07027527primaryCompletionDate: changed

Frequently asked questions about APG777

What is APG777?

APG777 is an investigational small molecule being developed by Apogee Therapeutics, Inc. for asthma and atopic dermatitis. It is in Phase 1 clinical development and targets IL-13. It has not been approved by the FDA and remains under study in clinical trials.

What is APG777 used for in atopic dermatitis and asthma?

APG777 is being studied for the treatment of atopic dermatitis and asthma. Clinical trials are enrolling or have enrolled adults with moderate-to-severe atopic dermatitis and adults with asthma. It is investigational and has not been approved for any indication.

What does APG777 target?

APG777 targets IL-13, an inflammatory cytokine involved in type 2 immune responses. By binding IL-13, the small molecule is designed to interfere with signaling that contributes to inflammation in conditions such as atopic dermatitis and asthma.

Who is developing APG777?

APG777 is being developed by Apogee Therapeutics, Inc., which trades on the Nasdaq under the ticker APGE. The company is running multiple clinical studies of APG777 in atopic dermatitis and asthma.

What phase is APG777 in?

APG777 is in Phase 1 clinical development, with additional Phase 2 studies ongoing in atopic dermatitis. It is investigational and has not received FDA approval. The program includes three active trials and no completed trials.

What clinical trials is APG777 in?

APG777 is being evaluated in NCT06395948 and NCT07003425 in atopic dermatitis, NCT06920901 in asthma, and NCT07027527, which studies APG777 combined with APG990 in moderate-to-severe atopic dermatitis. These trials are randomized, double-blind, and placebo-controlled, with enrollment totaling 906 participants.