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ClinicalTrials.gov 9 recruiting now official registry

Chronic Spontaneous Urticaria clinical trials

Every US clinical trial registered for Chronic Spontaneous Urticaria — phase mix, recruiting status, and the sponsors running them, straight from the NIH ClinicalTrials.gov registry.

19 US clinical trials · 9 currently recruiting

The research picture

Chronic Spontaneous Urticaria has 19 registered US clinical trials, 9 of them open to new participants right now — about 47% of the total.

9
recruiting participants now
47%
of trials open to enrollment
8
in Phase 3–4 (later-stage)
8
top sponsor: Novartis Pharmaceuticals

Counts reflect the public ClinicalTrials.gov registry as last mirrored by PlainTrial. Status and phase are reported by each study's sponsor. This is reference information, not medical advice.

Active & Recent Trials

RECRUITING 3,280 participants

Remibrutinib in Real-world Clinical Practice

Novartis Pharmaceuticals

NCT07358364

RECRUITING Phase 3 1,370 participants

Long-term Efficacy and Safety Extension (LTE) Study of Barzolvolimab in Participants With Chronic Spontaneous Urticaria

Celldex Therapeutics

NCT07256392

RECRUITING 505 participants

Remibrutinib in Real-world Clinical Practice - a US Sub-study

Novartis Pharmaceuticals

NCT07358780

RECRUITING 400 participants

A Study to Describe the Real-world Effectiveness, Safety and Patterns of Use of Dupilumab in Patients With Chronic Spontaneous Urticaria

Sanofi

NCT07316114

RECRUITING 350 participants

A Real-world Study of Remibrutinib in Chronic Spontaneous Urticaria Patients

Novartis Pharmaceuticals

NCT07408219

RECRUITING Phase 2 200 participants

A Study to Learn About Ritlecitinib for the Potential Treatment of Chronic Spontaneous Urticaria in Adults.

Pfizer

NCT07219615

RECRUITING Phase 2 160 participants

Phase 2b Study of EVO756 in Adults With Moderate to Severe Chronic Spontaneous Urticaria (CSU)

Evommune

NCT06873516

RECRUITING Phase 2 105 participants

Study of BLU-808 in Chronic Inducible Urticaria (CIndU) and Chronic Spontaneous Urticaria (CSU)

Blueprint Medicines Corporation

NCT06931405

RECRUITING Phase 3 100 participants

24 Weeks Double-blind Randomized Placebo-controlled Trial to Evaluate Efficacy, PK, Safety of LOU064 in Adolescents (12 - <18) With CSU and Inadequate Response to H1-antihistamine Followed by Optional 3 Years Open-label Extension and an Optional 3 Years Safety Long-term Treatment-free Follow-up

Novartis Pharmaceuticals

NCT05677451

ACTIVE NOT RECRUITING 15,000 participants

A Longitudinal Observational Study of Patients Undergoing Therapy for IMISC

Target PharmaSolutions

NCT03661866

ACTIVE NOT RECRUITING Phase 3 976 participants

A Phase 3 Study of Barzolvolimab in Participants With Chronic Spontaneous Urticaria (CSU)

Celldex Therapeutics

NCT06455202

ACTIVE NOT RECRUITING Phase 3 963 participants

A Phase 3 Study of Barzolvolimab in Participants With Chronic Spontaneous Urticaria

Celldex Therapeutics

NCT06445023

ACTIVE NOT RECRUITING Phase 3 696 participants

An Extension Study of Long-term Efficacy, Safety and Tolerability of Remibrutinib in Chronic Spontaneous Urticaria Patients Who Completed Preceding Studies With Remibrutinib

Novartis Pharmaceuticals

NCT05513001

ACTIVE NOT RECRUITING Phase 1 88 participants

Dose Escalation Trial Of Safety, Pharmacokinetic/Pharmacodynamic And Preliminary Clinical Activity of Briquilimab In Adult Patients With Chronic Spontaneous Urticaria (CSU)

Jasper Therapeutics

NCT06162728

COMPLETED Phase 3 1,078 participants

A Phase III Study of and Efficacy of Ligelizumab in the Treatment of CSU in Adolescents and Adults Inadequately Controlled With H1-antihistamines.

Novartis Pharmaceuticals

NCT03580356

COMPLETED Phase 2 229 participants

An Open-label Extension Study to Evaluate the Long-term Safety and Tolerability of LOU064 in Subjects With CSU

Novartis Pharmaceuticals

NCT04109313

COMPLETED Phase 3 144 participants

A Multicenter, Open-label Phase 3 Study: Ambulatory Blood Pressure Monitoring in Adult Patients With Chronic Spontaneous Urticaria Inadequately Controlled by H1-antihistamines Treated With Remibrutinib up to 12 Weeks.

Novartis Pharmaceuticals

NCT05795153

COMPLETED Phase 1 29 participants

Open-Label Extension Study for Subjects With H1 Antihistamine Refractory Chronic Spontaneous Urticaria Completing Study AK006-001

Allakos

NCT06577116

COMPLETED Phase 3 15 participants

A Study to Investigate the Pharmacokinetics and Safety of Dupilumab in Participants ≥2 Years to <12 Years of Age With Uncontrolled Chronic Spontaneous Urticaria (CSU) (LIBERTY-CSU CUPIDKids)

Sanofi

NCT05526521

Phase Distribution

PhaseTrial count
Phase 1 2
Phase 2 4
Phase 3 8

Top Sponsors

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

Reading the Chronic Spontaneous Urticaria Trial Landscape

ClinicalTrials.gov lists 19 US studies indexed under Chronic Spontaneous Urticaria, and 9 of those are currently open to recruitment — roughly 47% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Chronic Spontaneous Urticaria shows 8 late-stage studies (Phase 3 and Phase 4 combined) alongside 6 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Chronic Spontaneous Urticaria is led by Novartis Pharmaceuticals with 8 indexed trials, alongside 8 other organizations in the top contributor list. The list on this page surfaces up to 19 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Chronic Spontaneous Urticaria?

PlainTrial tracks 19 US clinical trials for Chronic Spontaneous Urticaria, of which 9 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Chronic Spontaneous Urticaria?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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