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Baricitinib

Phase 3

Atopic Dermatitis | Small molecule | Immunology |Eli Lilly and Company|Last Updated: Apr 24, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials8
Total Enrollment4,792
FDA Designations
No designations recorded
Clinical Trials (8)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT03952559A Study of Baricitinib (LY3009104) in Children and Adolescents With Atopic DermatitisPHASE3 ACTIVE NOT_RECRUITING 516May 24, 2019May 1, 2026Apr 24, 202678 Argentina, Australia +15
NCT03733301A Study of Baricitinib (LY3009104) in Combination With Topical Corticosteroids in Adults With Moderate to Severe Atopic DermatitisPHASE3 COMPLETED 329Nov 16, 2018Aug 22, 2019Aug 11, 202068 Argentina, Australia +8
NCT03428100A Long-term Study of Baricitinib (LY3009104) With Topical Corticosteroids in Adults With Moderate to Severe Atopic Dermatitis That Are Not Controlled With Cyclosporine or for Those Who Cannot Take Oral Cyclosporine Because it is Not Medically AdvisablePHASE3 COMPLETED 463May 15, 2018Apr 20, 2023May 14, 2024103 Austria, Belgium +12
NCT03334435A Study of Long-term Baricitinib (LY3009104) Therapy in Atopic DermatitisPHASE3 COMPLETED 1,645Mar 28, 2018Jul 12, 2023Sep 3, 2024185 Argentina, Australia +17
NCT03435081A Study of Baricitinib (LY3009104) in Adult Participants With Moderate to Severe Atopic DermatitisPHASE3 COMPLETED 440Feb 20, 2018Aug 16, 2021Sep 9, 202281 United States, Canada +1
NCT03334422Study of Baricitinib (LY3009104) in Patients With Moderate to Severe Atopic DermatitisPHASE3 COMPLETED 615Nov 27, 2017Dec 12, 2018Jan 22, 202080 Argentina, Australia +8
NCT03334396A Study of Baricitinib (LY3009104) in Patients With Moderate to Severe Atopic DermatitisPHASE3 COMPLETED 660Nov 23, 2017Aug 16, 2019Aug 18, 202093 Czechia, Denmark +8
NCT02576938A Study of Baricitinib (LY3009104) in Participants With Moderate-to-Severe Atopic DermatitisPHASE2 COMPLETED 124Feb 1, 2016Mar 1, 2017Jun 17, 202013 United States, Japan
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Study Endpoints
Primary Endpoints
Percentage of Participants Achieving Investigator's Global Assessment (IGA) of 0 or 1 With a ≥2 Point Improvement
Week 16

Percentage of participants achieving IGA of 0 or 1 with a ≥2 point improvement is presented. The IGA measures the investigator's global assessment of the participant's overall severity of their Atopic Dermatitis, based on a static, numeric 5-point scale from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, papulation/induration, oozing/crusting, and lichenification.

Open Label Population Pharmacokinetics (Pop PK): Maximum Observed Drug Concentration at Steady State (Cmax,ss) of LY3009104
Predose; 0.25 hours (h); 0.5 h; 1 h; 2-4 h; 4 h and 4-6 h post dose

Open label Pop PK: Cmax,ss was derived by a population pharmacokinetics approach.

Open Label Pop PK: Area Under the Concentration-Time Curve for Dosing Interval at Steady State (AUCtau,ss) of LY3009104
Predose; 0.25 h; 0.5 h; 1 h; 2-4 h; 4 h and 4-6 h post dose

Open label Pop PK: AUCtau,ss was derived by a population pharmacokinetics approach.

Percentage of Participants Achieving Investigator's Global Assessment (IGA) of 0 or 1 With a ≥ 2 Point Improvement
Week 16

The IGA measures investigators global assessment of the participant's overall severity of their atopic dermatitis (AD), based on a static, numeric 5-point scale from 0 (clear skin) 4 (severe disease). The score is based on an overall assessment of the degree of erythema, papulation/induration, oozing/crusting, and lichenification.

Percentage of Participants Achieving Eczema Area and Severity Index 75 (EASI75) (Placebo, 2 mg or 4 mg Baricitinib)
Week 16

The EASI assesses objective physician estimates of 2 dimensions of atopic dermatitis - 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 (no disease) to 72 (severe disease). The EASI75 is defined as a ≥ 75% improvement from baseline in the EASI score.

Responder and Partial Responders (RPR): Percentage of Participants From Monotherapy Studies (JAHL, JAHM) Who Achieved a Response of Investigator's Global Assessment (IGA) 0 or 1
Weeks 16, 36 and 52

The IGA measures the investigator's global assessment of the participant's overall severity of their atopic dermatitis (AD), based on a static, numeric 5-point scale from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, papulation/induration, oozing/crusting, and lichenification. The results were analyzed using non-responder imputation (NRI). All participants who either discontinued the study treatment or discontinued the study for any reason at any time were defined as non-responders for the NRI analysis for categorical variables such as IGA 0/1.

RPR: Percentage of Participants From Combination Therapy Study (JAIY) Who Achieved a Response of IGA 0 or 1
Weeks 16, 36, and 52

The IGA measures the investigator's global assessment of the participant's overall severity of their atopic dermatitis (AD), based on a static, numeric 5-point scale from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, papulation/induration, oozing/crusting, and lichenification. The results were analyzed using NRI. All participants who either discontinued the study treatment or discontinued the study for any reason at any time were defined as non-responders for the NRI analysis for categorical variables such as IGA 0/1.

Percentage of Participants Achieving Eczema Area and Severity Index 75 (EASI75) (2 mg Baricitinib)
Week 16

The EASI assesses objective physician estimates of 2 dimensions of atopic dermatitis - 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 EASI75 is defined as a ≥ 75% improvement from baseline in the EASI score.

Percentage of Participants Achieving Investigator's Global Assessment (IGA) of 0 or 1 With a ≥ 2 Point Improvement (Placebo, 2mg and 4mg Baricitinib)
16 Weeks

The IGA measures the investigator's global assessment of the participants overall severity of their atopic dermatitis (AD), based on a static, numeric 5-point scale from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, papulation/induration, oozing/crusting, and lichenification.

Percentage of Participants Achieving Investigator's Global Assessment (IGA) of 0 or 1 With a ≥ 2 Point Improvement (Placebo, 2 mg, or 4 mg Baricitinib)
16 Weeks

The IGA measures the investigator's global assessment of the participant's overall severity of their atopic dermatitis (AD), based on a static, numeric 5-point scale from 0 (clear skin) to 4 (severe disease). The score is based on an overall assessment of the degree of erythema, papulation/induration, oozing/crusting, and lichenification.

Percentage of Participants With a 50% or Greater Reduction in the Eczema Area and Severity Index (EASI 50)
Week 16

The EASI 50, defined as ≥ 50% reduction from baseline in EASI score, assesses extent of disease based on dividing the skin into 4 regions (head/neck, trunk, upper limbs, and lower limbs) and measures the following clinical signs: (1) erythema, (2) edema/papulation, (3) excoriation, and (4) lichenification each on a scale of 0 to 3.The EASI confers a maximum score of 72 with 0 = clear; 0.1 -1 = almost clear; 1.1 -7 = mild; 7.1 - 21 = moderate; 21.1 - 50 = severe; 50.1 - 72 = very severe.

Secondary Endpoints
Percentage of Participants Achieving Eczema Area and Severity Index 75 (EASI75)
Week 16
Percentage of Participants Achieving EASI90
Week 16
Change From Baseline in EASI Score
Baseline, Week 16
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Baricitinib Open Label High Dose (PK Lead-in)EXPERIMENTALParticipants 10 to \< 18 years received Baricitinib high dose (4 mg) administered orally in tablet form QD. Participants 2 to \< 10 years received Baricitinib high dose (2 mg) administered as oral suspension (1 mL) QD.
Baricitinib High DoseEXPERIMENTALParticipants 10 to \< 18 years received Baricitinib high dose (4 mg) and placebo to maintain the blind, administered orally in tablet form QD. Participants 2 to \< 10 years received Baricitinib high dose (2 mg) administered as oral suspension QD or placebo oral suspension QD to maintain the blind.
Baricitinib Medium DoseEXPERIMENTALParticipants 10 to \< 18 years received Baricitinib low dose (1 mg) and placebo to maintain the blind, administered orally in tablet form QD. Participants 2 to \< 10 years received Baricitinib low dose (0.5 mg) administered as oral suspension QD or placebo oral suspension QD to maintain the blind.
Baricitinib Low DoseEXPERIMENTALParticipants 10 to \< 18 years received Baricitinib low dose (1 mg) and placebo to maintain the blind, administered orally in tablet form QD. Participants 2 to \< 10 years received Baricitinib low dose (0.5 mg) administered as oral suspension QD or placebo oral suspension QD to maintain the blind.
PlaceboPLACEBO_COMPARATORParticipants 10 to \< 18 years received placebo tablets. Participants 2 to \< 10 years received placebo as oral suspension.
4 Milligram (mg) BaricitinibEXPERIMENTAL4 mg Baricitinib administered orally once daily in combination with topical corticosteroids (TCS). Placebo administered orally once daily to match 2 mg Baricitinib.
2 mg BaricitinibEXPERIMENTAL2 mg Baricitinib administered orally once daily in combination with TCS. Placebo administered orally once daily to match 4 mg Baricitinib.
4 mg BaricitinibEXPERIMENTAL4 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
1 mg BaricitinibEXPERIMENTAL1 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
Long Term Extension(LTE) Substudy 4mg Baricitinib to 4mg Baricitinib (Responders/Partial Responders)EXPERIMENTAL4 mg Baricitinib administered orally once daily (continued previous dose) in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE Substudy 4 mg Baricitinib to 2 mg Baricitinib (Responders/Partial Responders)EXPERIMENTAL4 mg Baricitinib rerandomized to 2 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE Substudy 2 mg Baricitinib to 2 mg Baricitinib (Responders/Partial Responders)EXPERIMENTAL2 mg Baricitinib rerandomized to 2 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE Substudy 2 mg Baricitinib to 1 mg Baricitinib (Responders/Partial Responders)EXPERIMENTAL2 mg Baricitinib rerandomized to 1 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 4 mg Baricitinib (Responders/Partial Responders) - Did Not Enter SubstudyEXPERIMENTAL4 mg Baricitinib administered orally once daily (continued previous dose) in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 2 mg Baricitinib (Responders/Partial Responders) - Did Not Enter SubstudyEXPERIMENTAL2 mg Baricitinib administered orally once daily (continued previous dose) in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 1 mg Baricitinib (Responders/Partial Responders) - Did Not Enter SubstudyEXPERIMENTAL1 mg administered orally once daily (continued previous dose) in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE Placebo (Responders/Partial Responders) - Did Not Enter SubstudyPLACEBO_COMPARATORPlacebo administered orally once daily (continued previous dose) in combination with topical corticosteroids. Additional placebo administered orally to maintain the blind.
LTE 4 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTAL4 mg administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 2 mg Baricitinib to 2 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTAL2 mg Baricitinib rerandomized to 2 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 2 mg Baricitinib to 4 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTAL2 mg Baricitinib rerandomized to 4 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 1 mg Baricitinib to 2 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTAL1 mg Baricitinib rerandomized to 2 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE 1 mg Baricitinib to 4 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTAL1 mg Baricitinib rerandomized to 4 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE Placebo to 2 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTALPlacebo rerandomized to 2 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
LTE Placebo to 4 mg Baricitinib (Non-responders) - Did Not Enter SubstudyEXPERIMENTALPlacebo rerandomized to 4 mg Baricitinib administered orally once daily in combination with topical corticosteroids. Placebo administered orally to maintain the blind.
Responders and Partial Responders (RPR)-PlaceboPLACEBO_COMPARATORResponders or partial responders (RPR) \[Investigator's Global Assessment (IGA) of (0,1, or 2) at entry to study JAHN and never rescued in originating study\] participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY were assigned to remain in this arm to receive placebo orally.
RPR-Bari 1-milligram (mg)EXPERIMENTALRPR participants from previous Baricitinib monotherapy studies-JAHL and JAHM were assigned to remain in this arm to receive Baricitinib 1 mg orally.
RPR-Bari 2-mgEXPERIMENTALRPR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY were assigned to remain in this arm to receive Baricitinib 2 mg orally.
RPR-Bari 4-mgEXPERIMENTALRPR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY were assigned to remain in this arm to receive Baricitinib 4 mg orally.
Non-responders (NR): Bari 1 mg to 2 mgEXPERIMENTALNon-responder (NR) \[those not meeting definition of RPR\] participants from previous Baricitinib monotherapy studies-JAHL and JAHM who received Baricitinib 1 mg and were re-randomized to this arm to receive Baricitinib 2 mg orally.
NR: Bari 1 mg to 4 mgEXPERIMENTALNR participants from previous Baricitinib monotherapy studies-JAHL and JAHM who received Baricitinib 1 mg and were re-randomized to this arm to receive Baricitinib 4 mg orally.
NR: Bari 2 mg to 2 mgEXPERIMENTALNR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY who received Baricitinib 2 mg and were re-randomized to this arm to receive Baricitinib 2 mg orally.
NR: Bari 2 mg to 4 mgEXPERIMENTALNR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY who received Baricitinib 2 mg and were re-randomized to this arm to receive Baricitinib 4 mg orally.
NR: Bari 4 mg to 4 mgEXPERIMENTALNR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY who received Baricitinib 4 mg and were re-randomized to this arm to receive Baricitinib 4 mg orally.
NR: Placebo to Bari 2 mgEXPERIMENTALNR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY who received placebo and were re-randomized to this arm to receive Baricitinib 2 mg orally.
NR: Placebo to Bari 4 mgEXPERIMENTALNR participants from previous Baricitinib monotherapy studies-JAHL and JAHM and combination therapy study-JAIY who received placebo and were re-randomized to this arm to receive Baricitinib 4 mg orally.
Bari 1 mgEXPERIMENTALParticipants from previous Baricitinib monotherapy studies (JAHL, JAHM) were randomized or assigned to this arm to receive Baricitinib 1 mg orally.
Bari 2 mgEXPERIMENTALParticipants from previous Baricitinib monotherapy studies (JAHL, JAHM) and combination therapy study (JAIY) were randomized or assigned to this arm to receive Baricitinib 2 mg orally.
Bari 4 mgEXPERIMENTALParticipants from previous Baricitinib monotherapy studies (JAHL, JAHM) and combination therapy study (JAIY) were randomized or assigned to this arm to receive Baricitinib 4 mg orally.
Bari 2-mg Open-Label AddendumEXPERIMENTALParticipants were directly enrolled to this open-label arm to receive Baricitinib 2-mg orally.
2 milligram (mg) BaricitinibEXPERIMENTAL2 mg Baricitinib administered orally every day. Placebo administered orally to maintain the blind.
2mg BaricitinibEXPERIMENTAL2mg Baricitinib administered orally once daily. Placebo 1 mg and 4 mg administered orally every day to match.
1mg BaricitinibEXPERIMENTAL1mg Baricitinib administered orally once daily. Placebo 2 mg and 4 mg administered orally every day to match.
4 mg Baricitinib Maximum Extended Enrollment CohortEXPERIMENTAL4 mg Baricitinib administered orally once daily. Placebo 1 mg, and 2 mg administered orally every day to match.
2 mg Baricitinib Maximum Extended Enrollment CohortEXPERIMENTAL2 mg Baricitinib administered orally once daily. Placebo 1 mg and 4 mg administered orally every day to match.
1 mg Baricitinib Maximum Extended Enrollment CohortEXPERIMENTAL1 mg Baricitinib administered orally once daily. Placebo 2 mg and 4 mg administered orally every day to match.
Placebo Maximum Extended Enrollment CohortPLACEBO_COMPARATORPlacebo administered orally once daily.
BaricitinibEXPERIMENTALAdministered once daily in multiple oral dose cohorts for 16 weeks (Triamcinolone 0.1% topical also permitted)
Interventions
NameTypeDescription
BaricitinibDRUGAdministered orally
PlaceboDRUGAdministered orally
Topical corticosteroidDRUGAdministered as standard-of-care
Triamcinolone (Optional)DRUGAdministered topically
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Eligibility Criteria
Age Range2 Years — 17 Years
SexALL
Healthy VolunteersNo
Study Sites78

Inclusion Criteria: * At or above the 5th percentile of weight for age. * Have been diagnosed with moderate to severe atopic dermatitis for at least 12 months (if 6 years old or older) or at least 6 months (if 2 up to 6 years old). * Have had inadequate response or intolerance to existing topical (...

Countries:ArgentinaAustraliaAustriaBrazilCzechiaFranceGermanyHungaryIndiaIsraelJapanMexicoPolandRussiaSpainTaiwanUnited KingdomItalySouth KoreaBelgiumFinlandNetherlandsSwitzerlandDenmarkUnited StatesCanadaPuerto Rico
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT03952559primaryCompletionDate: changed
LOWMay 24, 2026NCT03952559studyFirstPostDate: changed