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A Study of LY3454738 in the Treatment of Adult Participants With Moderate-to-Severe Atopic Dermatitis

A Phase 2, Randomized, Double-Blind, Parallel-Group, Placebo-Controlled, 52 Week Study to Evaluate the Efficacy and Safety of LY3454738 in the Treatment of Adult Patients With Moderate-to-Severe Atopic Dermatitis

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05911841
Enrollment
234
Registered
2023-06-22
Start date
2023-06-21
Completion date
2025-03-14
Last updated
2025-12-02

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

Conditions

Atopic Dermatitis

Brief summary

The main purpose of this study is to describe the efficacy and safety of LY3454738 in adult participants with moderate-to-severe atopic dermatitis (AD).

Interventions

Administered SC

DRUGPlacebo

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Are candidates for systemic therapy. ISA specific: * Have moderate-to-severe AD, defined as meeting all of the following criteria, at the first dosing visit: * EASI score greater than or equal to (≥)16 * vIGA-AD score ≥3, and * ≥10% of BSA involvement (per EASI BSA). * Have applied at least 1 emollient every day for at least 2 weeks before the day of the first dose of study intervention in this ISA and agree to daily use of at least 1 emollient continuously throughout the study.

Exclusion criteria

ISA specific: * Have, in the screening period, any of the skin conditions, infections, or medical conditions listed under master IMMB. * Are currently being treated with topical or systemic therapy * Recent treatment with experimental (biologics and/or small molecules) - doesn't apply for subset of participants who must have been exposed to biologics and/or small molecules.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Biologic and Small Molecule Naive Participants Achieving Eczema Area and Severity Index (EASI) 75 (≥75% Reduction in EASI Score) at Week 16Week 16The EASI assesses objective physician estimates of 2 dimensions of atopic dermatitis - disease extent, i.e., percentage of skin affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI-75 score was obtained by weight-averaging these 4 scores and will range from 0 (none) to 72 (severe). The EASI-75 responder is defined as a participant who achieves a ≥ 75% improvement from baseline in the EASI score.

Secondary

MeasureTime frameDescription
Percentage of Biologic and Small Molecule Naive Participants Achieving EASI-90 (≥ 90% Reduction in EASI Score) at Week 16Week 16The EASI assesses objective physician estimates of 2 dimensions of AD - disease extent and clinical signs affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI score was obtained by weight-averaging these 4 scores and will range from 0 to 72 (severe). The EASI-90 responder is defined as a participant who achieves a ≥ 90% reduction from baseline in the EASI score.
Percentage of Biologic and Small Molecule Naive Participants Achieving SCORing Atopic Dermatitis (SCORAD) 75 at Week 16Week 16The SCORAD index uses the rule of nines to assess disease extent and evaluates 6 clinical characteristics to determine disease severity: (1) erythema, (2) edema/papulation, (3)oozing/crusts, (4) excoriation, (5) lichenification, and (6) dryness on a scale of 0 to 3 (0=absence, 1=mild, 2=moderate, 3=severe). The SCORAD index also assesses subjective symptoms of pruritus and sleep loss with a visual analogue scales (VAS) where 0 is no itching or no trouble sleeping and 10 is unbearable itching or a lot of trouble sleeping. These 3 aspects: extent of disease (A: 0-1-2), disease severity (B: 0-18), & subjective symptoms (C: 0-20) combine using A/5 + 7\*B/2+ C to give a maximum possible score of 103, where 0 = no disease and 103 = severe disease. The SCORAD75 responder is defined as a participant who achieves a ≥ 75% improvement from baseline in the SCORAD score.
Percentage of Biologic and Small Molecule Naive Participants Achieving SCORAD-90 at Week 16Week 16The SCORAD index uses the rule of nines to assess disease extent and evaluates 6 clinical characteristics to determine disease severity: (1) erythema, (2) edema/papulation, (3)oozing/crusts, (4) excoriation, (5) lichenification, and (6) dryness on a scale of 0 to 3 (0=absence, 1=mild, 2=moderate, 3=severe). The SCORAD index also assesses subjective symptoms of pruritus and sleep loss with a visual analogue scales (VAS) where 0 is no itching or no trouble sleeping and 10 is unbearable itching or a lot of trouble sleeping. These 3 aspects: extent of disease (A: 0-1-2), disease severity (B: 0-18), & subjective symptoms (C: 0-20) combine using A/5 + 7\*B/2+ C to give a maximum possible score of 103, where 0 = no disease and 103 = severe disease. The SCORAD90 responder is defined as a participant who achieves a ≥ 90% improvement from baseline in the SCORAD score.
Percentage of Biologic and Small Molecule Naive Participants Achieving Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 at Week 16Week 16vIGA-AD is a standardized clinical tool used to measure the severity of AD. It is a static 5-point scale ranging from 0 to 4, used to grade overall disease severity. Higher viGA-AD scores represent more severe disease. The scale is as below: * 0-Clear: No inflammatory signs of atopic dermatitis (erythema, induration/papulation, lichenification, oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present. * 1-Almost Clear: Barely perceptible erythema, induration/papulation, and/or lichenification. No oozing/crusting. * 2-Mild: Slight but definite erythema (pink), induration/papulation, and/or lichenification. No oozing/crusting. * 3-Moderate: Clearly perceptible erythema (dull red), induration/papulation, and/or lichenification. Oozing and crusting may be present. * 4-Severe: Marked erythema (deep or bright red), induration/papulation, and/or lichenification. Disease is widespread in extent. Oozing or crusting may be present.
Percentage of Biologic and Small Molecule Naive Participants Achieving EASI-50 (≥ 50% Reduction in EASI Score) at Week 16Week 16The EASI assesses objective physician estimates of 2 dimensions of AD - disease extent and clinical signs affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI score was obtained by weight-averaging these 4 scores and will range from 0 to 72 (severe). The EASI-50 responder is defined as a participant who achieves a ≥ 50% reduction from baseline in the EASI score.
Mean Percent Change From Baseline in EASI in Biologic and Small Molecule Naive ParticipantsBaseline, Week 16Mean percent change from baseline in EASI in biologic and small molecule naive participants was reported.
Mean Percent Change From Baseline in SCORAD in Biologic and Small Molecule Naive ParticipantsBaseline, Week 16Mean percent change from baseline in SCORAD in biologic and small molecule naive participants was reported.
Percentage of Biologic and Small Molecule Experienced Participants Achieving EASI-75 at Week 16Week 16The EASI assesses objective physician estimates of 2 dimensions of atopic dermatitis - disease extent, i.e., percentage of skin affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI-75 score was obtained by weight-averaging these 4 scores and will range from 0 (none) to 72 (severe). The EASI-75 responder is defined as a participant who achieves a ≥ 75% improvement from baseline in the EASI score.
Pharmacokinetics (PK): Serum Trough Concentrations of LY3454738 at Week 16Day 113 post Day 1 DosePK: Serum trough concentrations of LY3454738 were reported.
Percentage of Biologic and Small Molecule Naive Participants Achieving ≥4-point Improvement From Baseline in Itch Numeric Rating Scale (NRS) in the Subset of Biologic and Small Molecule Naive Participants With ≥4-point Itch NRS at BaselineBaseline, Week 16Percentage of biologic and small molecule naive participants achieving ≥4-point improvement from baseline in Itch NRS in the Subset of biologic and small molecule naive participants with ≥4-point Itch NRS at Baseline were reported. The Itch NRS is a an 11-point scale used by participants to rate their worst itch severity over the past 24 hours with 0 indicating No itch and 10 indicating Worst itch imaginable.

Countries

Canada, China, Hungary, Japan, Mexico, Poland, South Korea, Taiwan, United States

Participant flow

Recruitment details

Induction Period (16 weeks): Participants were randomly assigned to receive 75 mg or 300 mg or 800 mg of LY3454738 or placebo every 2 weeks (Q2W) subcutaneously (SC). Maintenance Period (28 weeks): At Week 16, participants who achieved a ≥50% improvement in EASI \[EASI-50\]) (responders) were reassigned as follows, continuing treatment through Week 40: • Responders from the 800 mg Q2W group were re-randomized to receive either 800 mg LY3454738 every 4 weeks (Q4W) or placebo Q4W. (continued)

Pre-assignment details

* Responders from 300 mg Q2W arm received 300 mg LY3454738 Q4W. * Responders from 75 mg Q2W arm received 150 mg LY3454738 Q4W. * Responders from placebo Q2W arm received placebo Q4W. Escape Arm: Participants who didn't achieve EASI-50 at Week 16 (induction non-responders) or who didn't achieve ≥25% improvement from baseline in EASI at Week 20, 24, 28, 32, or 36 (maintenance non-responders) were assigned to Escape Arm. These participants received LY3454738 800 mg Q4W through Week 40.

Participants by arm

ArmCount
Induction - Placebo Q2W
Induction Period: (Baseline - Week 16): Participants received SC injections of Placebo Q2W from Baseline until Week 14.
65
Induction - LY3454738 75 mg Q2W
Induction Period (Baseline - Week 16): Participants received 75 mg of LY3454738 given SC Q2W from Baseline until Week 14.
31
Induction - LY3454738 300 mg Q2W
Induction Period (Baseline - Week 16): Participants received 300 mg of LY3454738 given SC Q2W from Baseline until Week 14.
45
Induction - LY3454738 800 mg Q2W
Induction Period (Baseline - Week 16): Participants received 800 mg of LY3454738 given SC Q2W from Baseline until Week 14.
93
Total234

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009
Escape PeriodAdverse Event0000000001
Escape PeriodDiscontinued Due to Failure to Achieve an EASI-50 Response0000000004
Escape PeriodLack of Efficacy00000000031
Escape PeriodLost to Follow-up0000000001
Escape PeriodSite Terminated by Sponsor0000000001
Escape PeriodStudy Terminated by Sponsor00000000034
Escape PeriodWithdrawal by Subject00000000010
Induction PeriodAdverse Event3120000000
Induction PeriodAssigned Treatment by Mistake0101000000
Induction PeriodLack of Efficacy3033000000
Induction PeriodLost to Follow-up0011000000
Induction PeriodStudy Terminated by Sponsor20146000000
Induction PeriodWithdrawal by Subject4346000000
Maintenance PeriodAdverse Event0000000100
Maintenance PeriodEnrolled to Escape Arm0000003440
Maintenance PeriodLack of Efficacy0000101000
Maintenance PeriodStudy Terminated by Sponsor00001151770
Maintenance PeriodWithdrawal by Subject0000010100

Baseline characteristics

CharacteristicInduction - LY3454738 75 mg Q2WInduction - LY3454738 300 mg Q2WInduction - Placebo Q2WInduction - LY3454738 800 mg Q2WTotal
Age, Continuous37.3 years
STANDARD_DEVIATION 12.4
36.1 years
STANDARD_DEVIATION 13.9
38.0 years
STANDARD_DEVIATION 13.4
35.2 years
STANDARD_DEVIATION 12.6
36.4 years
STANDARD_DEVIATION 13
Ethnicity (NIH/OMB)
Hispanic or Latino
7 Participants2 Participants7 Participants12 Participants28 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants40 Participants57 Participants80 Participants201 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants3 Participants1 Participants1 Participants5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
5 Participants3 Participants4 Participants5 Participants17 Participants
Race (NIH/OMB)
Asian
12 Participants25 Participants27 Participants49 Participants113 Participants
Race (NIH/OMB)
Black or African American
0 Participants2 Participants6 Participants1 Participants9 Participants
Race (NIH/OMB)
More than one race
1 Participants1 Participants1 Participants1 Participants4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
13 Participants14 Participants26 Participants37 Participants90 Participants
Region of Enrollment
Canada
3 Participants6 Participants5 Participants9 Participants23 Participants
Region of Enrollment
China
4 Participants1 Participants4 Participants8 Participants17 Participants
Region of Enrollment
Hungary
3 Participants0 Participants3 Participants5 Participants11 Participants
Region of Enrollment
Japan
2 Participants9 Participants8 Participants13 Participants32 Participants
Region of Enrollment
Mexico
7 Participants2 Participants4 Participants6 Participants19 Participants
Region of Enrollment
Poland
6 Participants8 Participants17 Participants22 Participants53 Participants
Region of Enrollment
South Korea
1 Participants9 Participants3 Participants10 Participants23 Participants
Region of Enrollment
Taiwan
2 Participants4 Participants8 Participants11 Participants25 Participants
Region of Enrollment
United States
3 Participants6 Participants13 Participants9 Participants31 Participants
Sex: Female, Male
Female
13 Participants21 Participants28 Participants39 Participants101 Participants
Sex: Female, Male
Male
18 Participants24 Participants37 Participants54 Participants133 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
deaths
Total, all-cause mortality
0 / 650 / 310 / 450 / 930 / 220 / 130 / 80 / 200 / 190 / 105
other
Total, other adverse events
35 / 6519 / 3120 / 4552 / 9313 / 227 / 134 / 87 / 206 / 1939 / 105
serious
Total, serious adverse events
3 / 651 / 311 / 451 / 931 / 221 / 130 / 81 / 200 / 190 / —

Outcome results

Primary

Percentage of Biologic and Small Molecule Naive Participants Achieving Eczema Area and Severity Index (EASI) 75 (≥75% Reduction in EASI Score) at Week 16

The EASI assesses objective physician estimates of 2 dimensions of atopic dermatitis - disease extent, i.e., percentage of skin affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI-75 score was obtained by weight-averaging these 4 scores and will range from 0 (none) to 72 (severe). The EASI-75 responder is defined as a participant who achieves a ≥ 75% improvement from baseline in the EASI score.

Time frame: Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Eczema Area and Severity Index (EASI) 75 (≥75% Reduction in EASI Score) at Week 1614.3 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Eczema Area and Severity Index (EASI) 75 (≥75% Reduction in EASI Score) at Week 1620.0 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Eczema Area and Severity Index (EASI) 75 (≥75% Reduction in EASI Score) at Week 1617.2 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Eczema Area and Severity Index (EASI) 75 (≥75% Reduction in EASI Score) at Week 1618.3 Percentage of participants
Secondary

Mean Percent Change From Baseline in EASI in Biologic and Small Molecule Naive Participants

Mean percent change from baseline in EASI in biologic and small molecule naive participants was reported.

Time frame: Baseline, Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Induction - Placebo Q2WMean Percent Change From Baseline in EASI in Biologic and Small Molecule Naive Participants-25.2 Percent changeStandard Error 7.1
Induction - LY3454738 75 mg Q2WMean Percent Change From Baseline in EASI in Biologic and Small Molecule Naive Participants-37.2 Percent changeStandard Error 6.39
Induction - LY3454738 300 mg Q2WMean Percent Change From Baseline in EASI in Biologic and Small Molecule Naive Participants-25.3 Percent changeStandard Error 6.83
Induction - LY3454738 800 mg Q2WMean Percent Change From Baseline in EASI in Biologic and Small Molecule Naive Participants-40.1 Percent changeStandard Error 4.76
95% CI: [-30.6, 6.6]
95% CI: [-19.4, 19.2]
95% CI: [-31.6, 1.7]
Secondary

Mean Percent Change From Baseline in SCORAD in Biologic and Small Molecule Naive Participants

Mean percent change from baseline in SCORAD in biologic and small molecule naive participants was reported.

Time frame: Baseline, Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Induction - Placebo Q2WMean Percent Change From Baseline in SCORAD in Biologic and Small Molecule Naive Participants-16.6 Percent changeStandard Error 4.86
Induction - LY3454738 75 mg Q2WMean Percent Change From Baseline in SCORAD in Biologic and Small Molecule Naive Participants-21.0 Percent changeStandard Error 4.65
Induction - LY3454738 300 mg Q2WMean Percent Change From Baseline in SCORAD in Biologic and Small Molecule Naive Participants-15.2 Percent changeStandard Error 5.01
Induction - LY3454738 800 mg Q2WMean Percent Change From Baseline in SCORAD in Biologic and Small Molecule Naive Participants-26.6 Percent changeStandard Error 3.58
95% CI: [-17.6, 8.7]
95% CI: [-12.3, 15.1]
95% CI: [-21.8, 1.9]
Secondary

Percentage of Biologic and Small Molecule Experienced Participants Achieving EASI-75 at Week 16

The EASI assesses objective physician estimates of 2 dimensions of atopic dermatitis - disease extent, i.e., percentage of skin affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI-75 score was obtained by weight-averaging these 4 scores and will range from 0 (none) to 72 (severe). The EASI-75 responder is defined as a participant who achieves a ≥ 75% improvement from baseline in the EASI score.

Time frame: Week 16

Population: All biologic and small-molecule-experienced participants who were randomly assigned to study intervention and took at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Experienced Participants Achieving EASI-75 at Week 1620.0 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Experienced Participants Achieving EASI-75 at Week 160.0 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Experienced Participants Achieving EASI-75 at Week 166.2 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Experienced Participants Achieving EASI-75 at Week 1612.1 Percentage of participants
Secondary

Percentage of Biologic and Small Molecule Naive Participants Achieving ≥4-point Improvement From Baseline in Itch Numeric Rating Scale (NRS) in the Subset of Biologic and Small Molecule Naive Participants With ≥4-point Itch NRS at Baseline

Percentage of biologic and small molecule naive participants achieving ≥4-point improvement from baseline in Itch NRS in the Subset of biologic and small molecule naive participants with ≥4-point Itch NRS at Baseline were reported. The Itch NRS is a an 11-point scale used by participants to rate their worst itch severity over the past 24 hours with 0 indicating No itch and 10 indicating Worst itch imaginable.

Time frame: Baseline, Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug in the subset of participants with ≥4-point Itch NRS at baseline.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving ≥4-point Improvement From Baseline in Itch Numeric Rating Scale (NRS) in the Subset of Biologic and Small Molecule Naive Participants With ≥4-point Itch NRS at Baseline12.9 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving ≥4-point Improvement From Baseline in Itch Numeric Rating Scale (NRS) in the Subset of Biologic and Small Molecule Naive Participants With ≥4-point Itch NRS at Baseline24.0 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving ≥4-point Improvement From Baseline in Itch Numeric Rating Scale (NRS) in the Subset of Biologic and Small Molecule Naive Participants With ≥4-point Itch NRS at Baseline5.3 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving ≥4-point Improvement From Baseline in Itch Numeric Rating Scale (NRS) in the Subset of Biologic and Small Molecule Naive Participants With ≥4-point Itch NRS at Baseline6.8 Percentage of participants
Secondary

Percentage of Biologic and Small Molecule Naive Participants Achieving EASI-50 (≥ 50% Reduction in EASI Score) at Week 16

The EASI assesses objective physician estimates of 2 dimensions of AD - disease extent and clinical signs affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI score was obtained by weight-averaging these 4 scores and will range from 0 to 72 (severe). The EASI-50 responder is defined as a participant who achieves a ≥ 50% reduction from baseline in the EASI score.

Time frame: Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-50 (≥ 50% Reduction in EASI Score) at Week 1628.6 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-50 (≥ 50% Reduction in EASI Score) at Week 1640.0 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-50 (≥ 50% Reduction in EASI Score) at Week 1624.1 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-50 (≥ 50% Reduction in EASI Score) at Week 1645.0 Percentage of participants
Secondary

Percentage of Biologic and Small Molecule Naive Participants Achieving EASI-90 (≥ 90% Reduction in EASI Score) at Week 16

The EASI assesses objective physician estimates of 2 dimensions of AD - disease extent and clinical signs affected: 0 = 0%; 1 = 1-9%; 2 = 10-29%; 3 = 30-49%; 4 = 50-69%; 5 = 70-89%; 6 = 90-100% and the severity of 4 clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3 (0 = none, absent; 1 = mild; 2 = moderate; 3 = severe) at 4 body sites (head/neck, trunk, upper limbs, and lower limbs). Half scores are allowed between severities 1, 2, and 3. The final EASI score was obtained by weight-averaging these 4 scores and will range from 0 to 72 (severe). The EASI-90 responder is defined as a participant who achieves a ≥ 90% reduction from baseline in the EASI score.

Time frame: Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-90 (≥ 90% Reduction in EASI Score) at Week 168.6 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-90 (≥ 90% Reduction in EASI Score) at Week 163.3 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-90 (≥ 90% Reduction in EASI Score) at Week 1610.3 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving EASI-90 (≥ 90% Reduction in EASI Score) at Week 1611.7 Percentage of participants
Secondary

Percentage of Biologic and Small Molecule Naive Participants Achieving SCORAD-90 at Week 16

The SCORAD index uses the rule of nines to assess disease extent and evaluates 6 clinical characteristics to determine disease severity: (1) erythema, (2) edema/papulation, (3)oozing/crusts, (4) excoriation, (5) lichenification, and (6) dryness on a scale of 0 to 3 (0=absence, 1=mild, 2=moderate, 3=severe). The SCORAD index also assesses subjective symptoms of pruritus and sleep loss with a visual analogue scales (VAS) where 0 is no itching or no trouble sleeping and 10 is unbearable itching or a lot of trouble sleeping. These 3 aspects: extent of disease (A: 0-1-2), disease severity (B: 0-18), & subjective symptoms (C: 0-20) combine using A/5 + 7\*B/2+ C to give a maximum possible score of 103, where 0 = no disease and 103 = severe disease. The SCORAD90 responder is defined as a participant who achieves a ≥ 90% improvement from baseline in the SCORAD score.

Time frame: Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORAD-90 at Week 162.9 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORAD-90 at Week 160.0 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORAD-90 at Week 160.0 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORAD-90 at Week 161.7 Percentage of participants
Secondary

Percentage of Biologic and Small Molecule Naive Participants Achieving SCORing Atopic Dermatitis (SCORAD) 75 at Week 16

The SCORAD index uses the rule of nines to assess disease extent and evaluates 6 clinical characteristics to determine disease severity: (1) erythema, (2) edema/papulation, (3)oozing/crusts, (4) excoriation, (5) lichenification, and (6) dryness on a scale of 0 to 3 (0=absence, 1=mild, 2=moderate, 3=severe). The SCORAD index also assesses subjective symptoms of pruritus and sleep loss with a visual analogue scales (VAS) where 0 is no itching or no trouble sleeping and 10 is unbearable itching or a lot of trouble sleeping. These 3 aspects: extent of disease (A: 0-1-2), disease severity (B: 0-18), & subjective symptoms (C: 0-20) combine using A/5 + 7\*B/2+ C to give a maximum possible score of 103, where 0 = no disease and 103 = severe disease. The SCORAD75 responder is defined as a participant who achieves a ≥ 75% improvement from baseline in the SCORAD score.

Time frame: Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORing Atopic Dermatitis (SCORAD) 75 at Week 165.7 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORing Atopic Dermatitis (SCORAD) 75 at Week 163.3 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORing Atopic Dermatitis (SCORAD) 75 at Week 163.4 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving SCORing Atopic Dermatitis (SCORAD) 75 at Week 166.7 Percentage of participants
Secondary

Percentage of Biologic and Small Molecule Naive Participants Achieving Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 at Week 16

vIGA-AD is a standardized clinical tool used to measure the severity of AD. It is a static 5-point scale ranging from 0 to 4, used to grade overall disease severity. Higher viGA-AD scores represent more severe disease. The scale is as below: * 0-Clear: No inflammatory signs of atopic dermatitis (erythema, induration/papulation, lichenification, oozing/crusting). Post-inflammatory hyperpigmentation and/or hypopigmentation may be present. * 1-Almost Clear: Barely perceptible erythema, induration/papulation, and/or lichenification. No oozing/crusting. * 2-Mild: Slight but definite erythema (pink), induration/papulation, and/or lichenification. No oozing/crusting. * 3-Moderate: Clearly perceptible erythema (dull red), induration/papulation, and/or lichenification. Oozing and crusting may be present. * 4-Severe: Marked erythema (deep or bright red), induration/papulation, and/or lichenification. Disease is widespread in extent. Oozing or crusting may be present.

Time frame: Week 16

Population: All biologic and small-molecule-naive participants who were randomly assigned to study intervention and took at least one dose of study drug.

ArmMeasureValue (NUMBER)
Induction - Placebo Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 at Week 168.6 Percentage of participants
Induction - LY3454738 75 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 at Week 166.7 Percentage of participants
Induction - LY3454738 300 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 at Week 166.9 Percentage of participants
Induction - LY3454738 800 mg Q2WPercentage of Biologic and Small Molecule Naive Participants Achieving Validated Investigator's Global Assessment for Atopic Dermatitis (vIGA-AD) of 0 or 1 at Week 1615.0 Percentage of participants
Secondary

Pharmacokinetics (PK): Serum Trough Concentrations of LY3454738 at Week 16

PK: Serum trough concentrations of LY3454738 were reported.

Time frame: Day 113 post Day 1 Dose

Population: All biologic and/or small molecule experienced or biologic-and-small-molecule naïve participants who were randomly assigned to study intervention and took at least 1 dose of LY3454738 and had evaluable PK data.

ArmMeasureValue (MEAN)Dispersion
Induction - Placebo Q2WPharmacokinetics (PK): Serum Trough Concentrations of LY3454738 at Week 1612.1 micrograms per milliliter (μg/mL)Standard Deviation 7.01
Induction - LY3454738 75 mg Q2WPharmacokinetics (PK): Serum Trough Concentrations of LY3454738 at Week 1656.2 micrograms per milliliter (μg/mL)Standard Deviation 18.5
Induction - LY3454738 300 mg Q2WPharmacokinetics (PK): Serum Trough Concentrations of LY3454738 at Week 16151 micrograms per milliliter (μg/mL)Standard Deviation 56.2

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026