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lebrikizumab

Phase 3

Asthma | Small molecule | Respiratory |Roche Holding AG|Last Updated: Jul 17, 2026

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials9
Total Enrollment3,647

FDA Designations

No designations recorded

Clinical trial landscape

lebrikizumab · 16 trials · 6 indications

Phase 3 3Phase 2 11Phase 1 2
NCT02104674A Study Evaluating the Efficacy and Safety of Lebrikizumab in Adult Patients With Mild to Moderate AsthmaAsthma
COMPLETED313 Analytics
NCT01868061A Study of Lebrikizumab in Participants With Uncontrolled Asthma on Inhaled Corticosteroids and a Second Controller MedicationAsthma
COMPLETED1,068 Analytics
NCT01867125A Study of Lebrikizumab in Participants With Uncontrolled Asthma Who Are on Inhaled Corticosteroids and a Second Controller MedicationAsthma
COMPLETED1,081 Analytics
PHASE3COMPLETED
A Study Evaluating the Efficacy and Safety of Lebrikizumab in Adult Patients With Mild to Moderate Asthma
AsthmaUnlock trial analytics
PHASE3COMPLETED
A Study of Lebrikizumab in Participants With Uncontrolled Asthma on Inhaled Corticosteroids and a Second Controller Medication
AsthmaUnlock trial analytics
PHASE3COMPLETED
A Study of Lebrikizumab in Participants With Uncontrolled Asthma Who Are on Inhaled Corticosteroids and a Second Controller Medication
AsthmaUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in Pre-bronchodilator Forced Expiratory Volume in 1 Second (FEV1) at Week 12
Baseline through Week 12

FEV1 is the amount of air which can be forcibly exhaled from the lungs in the first second of a forced exhalation. The active comparator treatment arm of open-label montelukast was included in the study design so that the sensitivity of the study could be evaluated with respect to the primary outcome measure, FEV1. Two mixed-effect models of repeated measures (MMRM) were used to estimate the absolute change from baseline values: one for the lebrikizumab vs. placebo primary comparison and the second for the montelukast vs. placebo sensitivity comparison.

Rate of Asthma Exacerbations During the 52-Week Placebo-Controlled Period
Baseline up to Week 52
Adjusted Exacerbation Rate of Asthma During the 52-Week PCP
Baseline up to 52 weeks

Asthma exacerbation is defined as new or increased asthma symptoms (i.e., wheeze, cough, dyspnea, chest tightness, and/or night-time awakening due to these symptoms) that lead to systemic corticosteroid (CS) treatment (oral, intravenous (IV), or intramuscular (IM) CS for ≥ 3 days or an emergency department visit with at least one dose of IV or IM CS) or to hospitalization. Results are reported as a 'Number' representing the model-adjusted incidence rate of asthma exacerbations per person-year. To account for early discontinuation, for each patient, the time at risk (in years) was computed as the duration of this time period (last day minus first day \[in days\] plus 1) divided by 365.25. The 'first day' was the day of randomization to the PCP. For patients entering the ATE, the 'last day' was the day prior to ATE randomization. For patients not entering the ATE, the 'last day' was at the last study visit on/prior to Study Day 379 (365 days plus a 14-day window).

Absolute Change From Baseline in Pre-bronchodilator Forced Expiratory Volume (FEV1) at Week 12
Baseline, Week 12
Number of participants with treatment-emergent adverse events (TEAEs)
From baseline to week 12
Percentage of Participants Achieving a 50 Percent (%) Reduction From Baseline in Eczema Area and Severity Index (EASI) Score (EASI-50) at Week 12
Week 12
Relative Change From Baseline in the Number of Airway Submucosal Eosinophils per Surface Area of Basal Lamina (Cells per Square Millimeter [Cells/mm^2])
From Baseline to Week 12
Relative Change From Baseline in Daily OCS Dose at Week 44
Baseline, Week 44
Annualized Rate of Decrease in Percent Predicted Forced Vital Capacity (FVC) Over 52 Weeks
Baseline up to Week 52 (assessed at Baseline, Weeks 1, 4, 12, 24, 36, 44, and 52)

Annualized rates of decrease (slope throughout time from baseline to Week 52) for percent predicted FVC was assessed and reported. FVC is a standard pulmonary function test. FVC is defined as the volume of air that can forcibly be blown out after full inspiration in the upright position, measured in liters. Predicted FVC is based on sex, age, and height of a person. Percent predicted FVC (in %) = \[(observed FVC)/(predicted FVC)\]\*100.

Change in forced expiratory volume in 1 second (FEV1)
Baseline to Week 12
Late asthmatic response (LAR)
Day 92
Maximum observed concentration (Cmax) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Time to maximum concentration (Tmax) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Area under the concentration-time curve to the last measurable concentration (AUC0-last) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Area under the concentration-time curve extrapolated to infinity (AUC0-inf) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Apparent terminal elimination rate constant of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Apparent terminal elimination half-life (t1/2) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Apparent clearance (CL/F) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Apparent volume of distribution (Vz/F) of lebrikizumab
Pre-dose and post-dose from Day 1 until study completion or premature withdrawal (up to approximately 3 months)
Safety: Incidence of adverse events in healthy Japanese subjects
120 days
Pharmacokinetics in healthy Japanese subjects: Area under the concentration-time curve (AUC)
120 days

Secondary Endpoints

Lebrikizumab vs. Placebo: Change From Baseline in Asthma Reliever Medication Use at Week 12
Baseline through Week 12
Lebrikizumab vs. Placebo: Change From Baseline in the Standardized Asthma Quality of Life Questionnaire (AQLQ[S]) Overall Score at Week 12
Baseline through Week 12
Change From Baseline in Fractional Exhaled Nitric Oxide (FeNO) Levels at Week 12
Baseline, Week 12
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
LebrikizumabEXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
MontelukastACTIVE_COMPARATOR -
Lebrikizumab (125 mg)EXPERIMENTALParticipants will receive SC injection of lebrikizumab (125 mg) every 4 weeks for 104 weeks.
Lebrikizumab (37.5 mg)EXPERIMENTALParticipants will receive SC injection of lebrikizumab (37.5 mg) every 4 weeks for 104 weeks.
Lebrikizumab: Biomarker-highEXPERIMENTALLebrikizumab will be administered subcutaneously once in every 4 weeks up to 24 weeks to the participants considered as biomarker-high.
Lebrikizumab: Biomarker-lowEXPERIMENTALLebrikizumab will be administered subcutaneously once in every 4 weeks up to 24 weeks to the participants considered as biomarker-low.
Placebo: Biomarker-highPLACEBO_COMPARATORMatching placebo will be administered subcutaneously once in every 4 weeks up to 24 weeks to the participants considered as biomarker-high.
Placebo: Biomarker-lowPLACEBO_COMPARATORMatching placebo will be administered subcutaneously once in every 4 weeks up to 24 weeks to the participants considered as biomarker-low.
Group 1: Lebrikizumab Dose Level 1 MonotherapyEXPERIMENTALDuring the 2-week run-in period, participants will receive topical corticosteroid creams to be self-applied two times per day to active skin lesions only. During the 12-week treatment period, lebrikizumab monotherapy will be administered by subcutaneous (SC) injection, but participants assigned to this group will not receive topical corticosteroids. During the 8-week safety follow-up period, all participants will receive topical corticosteroids to be self-applied to active skin lesions as decided by the participant and study investigator.
Group 2: Topical Corticosteroid Creams OnlyACTIVE_COMPARATORDuring the 2-week run-in period and during the 12-week treatment period, participants assigned to this group will receive topical corticosteroid creams to be self-applied two times per day to active skin lesions only. During the 8-week safety follow-up period, all participants will receive topical corticosteroids to be self-applied to active skin lesions as decided by the participant and study investigator.
Lebrikizumab 250 mg Single Dose + TCS CreamEXPERIMENTALParticipants will receive lebrikizumab 250 milligrams (mg) SC single dose on Day 1 followed by placebo on Week 4 and Week 8. Participants will continue to apply TCS cream (triamcenolone acetonide 0.1% or hydrocortisone 2.5% cream) twice daily to active skin lesions throughout the 12-week treatment period.
Lebrikizumab 125 mg Single Dose + TCS CreamEXPERIMENTALParticipants will receive lebrikizumab 125 mg SC single dose on Day 1 followed by placebo on Week 4 and Week 8. Participants will continue to apply TCS cream (triamcenolone acetonide 0.1% or hydrocortisone 2.5% cream) twice daily to active skin lesions throughout the 12-week treatment period.
Lebrikizumab 125 mg Q4W + TCS CreamEXPERIMENTALParticipants will receive lebrikizumab 125 mg SC every 4 weeks (Q4W) for a total of 3 doses. Participants will continue to apply TCS cream (triamcenolone acetonide 0.1% or hydrocortisone 2.5% cream) twice daily to active skin lesions throughout the 12-week treatment period.
Placebo Q4W + TCS CreamPLACEBO_COMPARATORParticipants will receive placebo Q4W for a total of 3 doses. Participants will continue to apply TCS cream (triamcenolone acetonide 0.1% or hydrocortisone 2.5% cream) twice daily to active skin lesions throughout the 12-week treatment period.
Lebrikizumab High DoseEXPERIMENTALParticipants will receive lebrikizumab at high dose level as subcutaneous (SC) injection every 4 weeks during the 44-week DBPC period, followed by a 32-week ATE period, and during the LTE period.
Lebrikizumab Low DoseEXPERIMENTALParticipants will receive lebrikizumab at low dose level as SC injection every 4 weeks during the 44-week DBPC period, followed by a 32-week ATE period, and during the LTE period.
Monotherapy (Cohort A): PlaceboPLACEBO_COMPARATORParticipants will receive monotherapy with placebo matched to lebrikizumab administered via subcutaneous (SC) injection once every 4 weeks up to 52 weeks during the placebo-controlled treatment period. Participants will be allowed to receive treatment with lebrikizumab at a dose of 250 mg administered via SC injection once every 4 weeks up to additional 52 weeks (that is, up to Week 104) in the open-label period.
Monotherapy (Cohort A): LebrikizumabEXPERIMENTALParticipants will receive monotherapy with lebrikizumab at a dose of 250 milligrams (mg) administered via SC injection once every 4 weeks up to 52 weeks during the placebo-controlled treatment period. Participants will be allowed to receive treatment with lebrikizumab at a dose of 250 mg administered via SC injection once every 4 weeks up to additional 52 weeks (that is, up to Week 104) in the open-label period.
Combination Therapy (Cohort B): Placebo + PirfenidonePLACEBO_COMPARATORParticipants will receive pirfenidone at a stable dose of 2403 mg per day (three 267 mg capsules three times a day \[9 capsules daily\] for a total of 2403 mg/day) or at maximum tolerated dose (MTD) administered orally along with placebo matched to lebrikizumab administered via SC injection once every 4 weeks up to 52 weeks during the placebo-controlled treatment period.
Combination Therapy (Cohort B): Lebrikizumab + PirfenidoneEXPERIMENTALParticipants will receive pirfenidone at a stable dose of 2403 mg per day (three 267 mg capsules three times a day \[9 capsules daily\] for a total of 2403 mg/day) or at MTD administered orally along with lebrikizumab at a dose of 250 mg administered via SC injection once every 4 weeks up to 52 weeks during the placebo-controlled treatment period.
lebrikizumab - highest doseEXPERIMENTAL -
lebrikizumab - lowest doseEXPERIMENTAL -
lebrikizumab - middle doseEXPERIMENTAL -
AEXPERIMENTAL -
BEXPERIMENTAL -
CEXPERIMENTAL -
DPLACEBO_COMPARATOR -
1EXPERIMENTAL -
2PLACEBO_COMPARATOR -
Treatment 1: Needle and SyringeEXPERIMENTALHealthy volunteers will receive a single SC injection of lebrikizumab, withdrawn from a vial and administered by a needle and syringe.
Treatment 2: PFS-NSDEXPERIMENTALHealthy volunteers will receive a single SC injection of lebrikizumab, administered by PFS-NSD.

Interventions

NameTypeDescription
LebrikizumabDRUGLebrikizumab 125 mg subcutaneous (SC) injection given on Days 1, 29, and 57
MontelukastDRUG10 mg tablet given orally once daily for 12 weeks, according to the approved label.
PlaceboOTHERLebrikizumab-matched placebo SC injection given on Days 1, 29, and 57
Topical Corticosteroid Creams (Triamcinolone acetonide 0.1% and Hydrocortisone 2.5%)DRUGTriamcinolone acetonide 0.1% cream will be supplied as single 454-g jars to be used on the body. Hydrocortisone 2.5% cream will be supplied as single 28-g tubes to be used on the face and intertriginous areas as indicated.
TCS CreamDRUGTCS cream (triamcenolone acetonide 0.1% or hydrocortisone 2.5% cream) twice daily
Inhaled corticposteroids (ICS)DRUGParticipants will continue their ICS controller therapy, as they are receiving prior to screening, throughout the study. Protocol does not specify any particular ICS.
Second Asthma Controller MedicationDRUGParticipants will continue their asthma controller therapy, as they are receiving prior to screening, throughout the study.
PirfenidoneDRUGPirfenidone will be administered orally at a stable dose of 2403 mg per day or at MTD.
lebrikizumab (MILR1444A)DRUGSubcutaneous repeating dose
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites82

Inclusion Criteria: * Age 18-75 years old at study start * Asthma diagnosis for \>/= 12 months prior to study start * Bronchodilator response at screening * Pre-bronchodilator FEV1 of 60% - 85% predicted at both screening visits 2 and 3 * No other clinically significant lung disease as confirmed by...

Countries:United StatesBrazilBulgariaCanadaCzechiaNew ZealandPolandRomaniaRussiaSouth AfricaUnited KingdomArgentinaAustraliaBelgiumFranceGermanyHungaryIsraelItalyJapanMexicoPeruSerbiaSlovakiaSouth KoreaSpainUkraineChileColombiaTurkey (Türkiye)DenmarkFinlandNetherlandsSwitzerlandTaiwanIrelandSwedenPuerto RicoSlovenia
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Recent Changes (Last 90 Days)

MEDIUMAug 17, 2026NCT01867125TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT02104674TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT01867125TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT02104674TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT01867125TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT02104674TRIAL_REMOVED: changed

Frequently asked questions about lebrikizumab

What is Lebrikizumab used for?

Lebrikizumab is an investigational drug being studied for several conditions, including allergic asthma, asthma, atopic dermatitis, idiopathic pulmonary fibrosis, and chronic obstructive pulmonary disease. It has also been evaluated in healthy volunteers. As of the latest data, it is in Phase 2 clinical development and is not approved by the FDA.

What does Lebrikizumab target?

Lebrikizumab is a small molecule that targets interleukin-13 (IL-13), a cytokine involved in inflammatory responses. By modulating this pathway, it is being investigated for its potential to treat inflammatory and fibrotic conditions such as asthma, atopic dermatitis, and idiopathic pulmonary fibrosis.

Who makes Lebrikizumab?

Lebrikizumab is being developed by Roche Holding AG, which trades under the ticker RHHBY. The company is conducting clinical trials to evaluate the drug's safety and efficacy across multiple indications, including respiratory and dermatological conditions.

What phase is Lebrikizumab in?

Lebrikizumab is currently in Phase 2 clinical development. It has completed nine trials, with no active trials ongoing at this time. The drug is investigational and has not received FDA approval for any indication.

What clinical trials is Lebrikizumab in?

Lebrikizumab has been studied in several completed clinical trials, including NCT00781443 for allergic asthma, NCT01423318 in healthy volunteers, NCT01872689 for idiopathic pulmonary fibrosis, and NCT02486809, a bioequivalence study in healthy volunteers. These trials have collectively enrolled over 3,600 participants.

Is Lebrikizumab the same as MILR1444A?

Yes, Lebrikizumab is also known as MILR1444A. In clinical trial NCT00781443, the drug was referred to as MILR1444A, and it was evaluated for the prevention of allergen-induced airway obstruction in adults with mild allergic asthma.