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Ligelizumab

Phase 3

Chronic Spontaneous Urticaria | Small molecule | Dermatology |Novartis AG|Last Updated: Jan 13, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials5
Total Enrollment2,491

FDA Designations

No designations recorded

Clinical trial landscape

Ligelizumab · 5 trials · 1 indication

Phase 3 3Phase 2 2
NCT03907878A Safety and Efficacy Study of Ligelizumab in the Treatment of CSU in Japanese Patients Inadequately Controlled With H1- AntihistaminesChronic Spontaneous Urticaria
COMPLETED66 Analytics
NCT03580356A Phase III Study of and Efficacy of Ligelizumab in the Treatment of CSU in Adolescents and Adults Inadequately Controlled With H1-antihistamines.Chronic Spontaneous Urticaria
COMPLETED1,078 Analytics
NCT03580369A Phase III Study of Safety and Efficacy of Ligelizumab in the Treatment of CSU in Adolescents and Adults Inadequately Controlled With H1-antihistaminesChronic Spontaneous Urticaria
COMPLETED1,072 Analytics
PHASE3COMPLETED
A Safety and Efficacy Study of Ligelizumab in the Treatment of CSU in Japanese Patients Inadequately Controlled With H1- Antihistamines
Chronic Spontaneous UrticariaUnlock trial analytics
PHASE3COMPLETED
A Phase III Study of and Efficacy of Ligelizumab in the Treatment of CSU in Adolescents and Adults Inadequately Controlled With H1-antihistamines.
Chronic Spontaneous UrticariaUnlock trial analytics
PHASE3COMPLETED
A Phase III Study of Safety and Efficacy of Ligelizumab in the Treatment of CSU in Adolescents and Adults Inadequately Controlled With H1-antihistamines
Chronic Spontaneous UrticariaUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety and Tolerability of Ligelizumab 120 mg q4w Treatment for 12 Months
64 weeks

Participants with treatment emergent adverse events (AEs) and serious adverse events (SAEs) summary for entire study (64 weeks) An AE is any untoward medical occurrence, unfavorable, or unintended sign (including an abnormal laboratory finding), symptom, disease, or injury, temporally associated with the use of a marketed or investigational medicinal product, gene therapy, theragnostic product, or medical device, in patients, clinical-trial subjects, device users, or other persons, whether or not it is considered to be related to or due to the product.

Mean Change From Baseline in UAS7 at Week 12 (Multiple Imputation) of Adult Subjects
Baseline, Week 12

The Urticaria Activity Score (UAS) is sum of the Hive Severity Score (HSS) and the Itch Severity Score (ISS). UAS7 is sum of the HSS7 and the ISS7 scores. Possible range of weekly UAS7 score is 0 to 42. Complete UAS7 response is UAS7 = 0. Hives Severity Score (HSS) scale is 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. Possible range of the weekly score is therefore 0 to 21. Hives Severity Score scale: 0 - None 1 - Mild (1-6 hives/12 hours) 2 - Moderate (7-12 hives/12 hours) 3 - Severe (\>12 hives/12 hours). Itch Severity Score (ISS) scale is 0 to 3. Score (ISS7) is derived by adding up average daily scores of 7 days preceding visit. Possible range of weekly score is therefore 0 to 21. Itch Severity Score scale: 0 - None 1 - Mild (minimal awareness, easily tolerated) 2 - Moderate (definite awareness, bothersome but tolerable) 3 - Severe (difficult to tolerate). Negative change from baseline indicates improvement

Mean Change From Baseline in UAS7 at Week 12 (Observed Data) of Adolescent Subjects (FAS)
Baseline, Week 12

The Urticaria Activity Score (UAS) is sum of the Hive Severity Score (HSS) and the Itch Severity Score (ISS). UAS7 is sum of the HSS7 and the ISS7 scores. Possible range of weekly UAS7 score is 0 to 42. Complete UAS7 response is UAS7 = 0. Hives Severity Score (HSS) scale is 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. Possible range of the weekly score is therefore 0 to 21. Hives Severity Score scale: 0 - None 1 - Mild (1-6 hives/12 hours) 2 - Moderate (7-12 hives/12 hours) 3 - Severe (\>12 hives/12 hours). Itch Severity Score (ISS) scale is 0 to 3. Score (ISS7) is derived by adding up average daily scores of 7 days preceding visit. Possible range of weekly score is therefore 0 to 21. Itch Severity Score scale: 0 - None 1 - Mild (minimal awareness, easily tolerated) 2 - Moderate (definite awareness, bothersome but tolerable) 3 - Severe (difficult to tolerate). Negative change from baseline indicates improvement

Change From Baseline of Weekly Urticaria Activity Score (UAS7) at Week 24
Baseline, week 24

UAS7 is a self-reported scoring system to evaluate urticaria signs and symptoms. UAS7 is the sum of daily urticaria activity scores (UAS) over a seven-day period. The possible range of UAS7 score is 0 to 42 (0 to 6 for daily UAS x 7 days). A higher urticaria activity score indicates more severe symptoms. A negative change score from baseline indicates improvement. Baseline was calculated using data from the 7 days prior to the first treatment date. To handle the missing data, if a participant had at least 4 non-missing daily scores within the 7 days prior to a study visit, the weekly score was calculated as the sum of the available scores in that week, divided by the number of days with daily scores available, multiplied by 7. However, if there were less than 4 non-missing daily scores within the prior 7 days, then the weekly score was missing for the week.

Number of Participants With at Least One Treatment Emergent Adverse Event (AE)
Within 16 weeks after Week 48

The primary objective of this study was to assess the long-term safety of one-year treatment of QGE031 in adult Chronic Spontaneous Urticaria (CSU) patients who completed the core study CQGE031C2201 using the following evaluations: number of participants with treatment emergent AEs of non-serious and serious nature including any events of special interest.

Secondary Endpoints

UAS7 Change From Baseline Over Time
Baseline, Weeks 12, 24, 52, and 64
HSS7 Change From Baseline Over Time
Baseline, Weeks 12, 24, 52, and 64
ISS7 Change From Baseline Over Time
Baseline, Weeks 12, 24, 52, and 64
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Ligelizumab 120 mg per 1 mL qw4EXPERIMENTALSubjects received one subcutaneous injection every 4 weeks at 13 visits during the treatment period
Ligelizumab 120 mgEXPERIMENTALLigelizumab 120 mg arm: 1 injection of 1.0 mL ligelizumab + 1 injection of 1.0 mL ligelizumab placebo q4w
Ligelizumab 72 mgEXPERIMENTALLigelizumab 72 mg arm: 1 injection of 0.6 mL ligelizumab + 1 injection of 1.0 mL ligelizumab placebo q4w
Omalizumab 300 mgACTIVE_COMPARATOROmalizumab 300 mg arm: 2 injections of 1.2 mL omalizumab q4w
PlaceboPLACEBO_COMPARATORPlacebo-ligelizumab arm: 2 injections of 1.0mL of ligelizumab placebo from Week 0 through Week 20; 1 injection of 1.0mL of ligelizumab 120 mg + 1 injection of 1.0 mL ligelizumab placebo from Week 24 through Week 48
Ligelizumab 24 mgEXPERIMENTALParticipants received a dose of ligelizumab 24 mg (low dose) which consisted of one injection of 0.2 ml of ligelizumab 120 mg/ 1 ml vial every 4 weeks from Day 1 to Week 20 (inclusive).
Placebo + Ligelizumab 120 mgPLACEBO_COMPARATORParticipants received Placebo which consisted of one injection of 1 ml placebo every 4 weeks from Day 1 to Week 8 (inclusive). From week 12 to week 20 (inclusive), participants received a dose of ligelizumab 120 mg (high dose) which consisted of one injection of 1 ml of ligelizumab 120 mg/ 1 ml vial.
LigelizumabEXPERIMENTALQGE031 240 mg s.c. q4w x 13 treatments

Interventions

NameTypeDescription
LigelizumabBIOLOGICALLiquid in vial
OmalizumabBIOLOGICALLyophilized powder for solution in vial
PlaceboOTHERLiquid in vial
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites11

Key Inclusion Criteria: * Signed informed consent must be obtained prior to participation in the study * Male and female subjects ≥ 18 years of age at the time of screening * CSU diagnosis for ≥ 6 months * Diagnosis of CSU refractory to H1-AH at approved doses at the time of Baseline (Visit 110, Da...

Countries:JapanUnited StatesArgentinaAustraliaBelgiumBrazilChileEstoniaFinlandFranceGermanyIndiaIsraelItalyLebanonMexicoNetherlandsPhilippinesPolandRomaniaRussiaSlovakiaSpainTaiwanTunisiaUnited KingdomVietnamAustriaBulgariaCanadaColombiaCroatiaCzechiaDenmarkGreeceGuatemalaHungaryMalaysiaOmanPeruPuerto RicoSingaporeSouth AfricaSouth KoreaSwedenThailandTurkey (Türkiye)
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Frequently asked questions about Ligelizumab

What is Ligelizumab used for?

Ligelizumab is an investigational drug being developed for chronic spontaneous urticaria (CSU), a skin condition characterized by recurrent hives. It is being studied in patients whose symptoms are inadequately controlled with H1-antihistamines. The drug is in Phase 3 clinical development and has not been approved by regulatory authorities.

How does Ligelizumab work?

Ligelizumab is a small molecule that targets and inhibits the activity of immunoglobulin E (IgE), a key driver of allergic responses. By binding to IgE, it prevents the activation of mast cells and basophils, which are immune cells that release histamine and cause hives in chronic spontaneous urticaria.

Who is developing Ligelizumab?

Ligelizumab is being developed by Novartis AG, a global pharmaceutical company headquartered in Switzerland. Novartis trades on the New York Stock Exchange under the ticker symbol NVS. The company has conducted multiple clinical trials to evaluate the drug's safety and efficacy in chronic spontaneous urticaria.

What phase is Ligelizumab in?

Ligelizumab is in Phase 3 clinical development for chronic spontaneous urticaria. It is an investigational drug and has not been approved by the FDA or any other regulatory agency. The Phase 3 program includes studies in adults and adolescents whose symptoms are not adequately controlled with H1-antihistamines.

What clinical trials has Ligelizumab been in?

Ligelizumab has been studied in five completed clinical trials, including Phase 2 and Phase 3 studies. Key trials include NCT03580369, a Phase 3 study in adolescents and adults with CSU, and NCT03907878, a Phase 3 study in Japanese patients. Other trials include NCT02649218 and NCT03437278, which evaluated long-term safety and use in adolescents.

Is Ligelizumab the same as QGE031?

Yes, Ligelizumab is also known as QGE031. In earlier clinical trials, the drug was referred to by this code name. For example, NCT02649218 and NCT03437278 both use the QGE031 designation in their titles, while later Phase 3 studies use the name Ligelizumab.