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Briquilimab

Phase 1

Chronic Spontaneous Urticaria | Monoclonal antibody | Dermatology |Jasper Therapeutics, Inc.|Last Updated: Aug 6, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment87

FDA Designations

ORPHAN_DRUGRARE_PEDIATRIC_DISEASE

Clinical trial landscape

Briquilimab · 1 trial · 1 indication

Phase 1 1
NCT06162728Dose Escalation Trial Of Safety, Pharmacokinetic/Pharmacodynamic And Preliminary Clinical Activity of Briquilimab In Adult Patients With Chronic Spontaneous Urticaria (CSU)Chronic Spontaneous Urticaria
COMPLETED87 Analytics
PHASE1COMPLETED
Dose Escalation Trial Of Safety, Pharmacokinetic/Pharmacodynamic And Preliminary Clinical Activity of Briquilimab In Adult Patients With Chronic Spontaneous Urticaria (CSU)
Chronic Spontaneous UrticariaUnlock trial analytics

Study Endpoints

Primary Endpoints

Evaluate the safety and tolerability of briquilimab
From signing the informed consent form (ICF) through end of trial (EOT) visit (up to 48 weeks)

Incidence and severity of treatment emergent AEs/SAEs

Secondary Endpoints

Evaluate the preliminary efficacy of briquilimab-- UAS7 Score
Change from baseline to Week 12 and all assessment time points through Week 48
Evaluate the preliminary efficacy of briquilimab - Urticaria Control Test (UCT)
Change from baseline to Week 12 and all assessment time points through Week 48
Maximum serum concentration (Cmax)
Up to 12 weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
BriquilimabEXPERIMENTALThis trial will be performed as a three-part dose escalating clinical trial where Parts 1 is open label and Parts 2 and 3 are randomized, double-blinded, and placebo-controlled.
PlaceboPLACEBO_COMPARATORPlacebo Comparator

Interventions

NameTypeDescription
BriquilimabDRUGSubcutaneous Administration
PlaceboOTHERPlacebo Comparator
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites23

Inclusion Criteria: 1. Written informed consent after the nature of the trial has been fully explained and before performing any trial related assessments 2. Males and females, ≥18 years old 3. i. For Cohorts 1, 2, 3, 4a, 4b, 5, 5b, 6 and 7: Diagnosis of symptomatic CSU despite treatment as defined...

Countries:United StatesGermany
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Recent Changes (Last 90 Days)

MEDIUMSep 6, 2026NCT06162728TRIAL_REMOVED: changed
MEDIUMSep 6, 2026NCT06162728TRIAL_REMOVED: changed
MEDIUMSep 6, 2026NCT06162728TRIAL_REMOVED: changed
HIGHAug 6, 2026NCT06162728Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHAug 6, 2026NCT06162728Status: ACTIVE_NOT_RECRUITING → COMPLETED

Frequently asked questions about Briquilimab

What is Briquilimab used for?

Briquilimab is an investigational monoclonal antibody being developed for chronic spontaneous urticaria, a dermatologic condition marked by recurring hives without an identifiable trigger. It is also associated with orphan drug and rare pediatric disease designations. It is not yet approved for any indication and remains in clinical development.

Who makes Briquilimab?

Briquilimab is developed by Jasper Therapeutics, Inc., which trades under the ticker JSPR. The company is the sponsor of the clinical program evaluating the drug in chronic spontaneous urticaria.

What phase is Briquilimab in?

Briquilimab is in Phase 1 development. The program includes one completed Phase 1 trial in chronic spontaneous urticaria, and no active trials are currently listed. It is investigational and has not been approved by the FDA for any use.

What clinical trials is Briquilimab in?

Briquilimab has been studied in a single Phase 1 trial, NCT06162728, titled a dose escalation trial of safety, pharmacokinetic and pharmacodynamic and preliminary clinical activity in adults with chronic spontaneous urticaria. The trial enrolled 87 participants across the United States and Germany and is completed.

Is Briquilimab FDA approved?

No, Briquilimab is not FDA approved. It is an investigational monoclonal antibody still in clinical development, with one completed Phase 1 trial in chronic spontaneous urticaria. It holds orphan drug and rare pediatric disease designations, which are separate from marketing approval.

What were the design features of the Briquilimab trial in chronic spontaneous urticaria?

The Phase 1 trial NCT06162728 was randomized, double blind, and placebo controlled, enrolling 87 adults aged 18 years and older of all sexes. It was conducted in the United States and Germany and did not include healthy volunteers.