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Tibulizumab

Phase 2

Systemic Sclerosis (SSc) | Monoclonal antibody | Immunology |Zura Bio Limited|Last Updated: Jul 20, 2026

Target and mechanism

Molecular targetIL17A, TNFSF13B
Target classInhibitor
ModalityMonoclonal antibody

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment80

FDA Designations

No designations recorded

Clinical trial landscape

Tibulizumab · 1 trial · 2 indications

Phase 2 1
NCT06843239Tibulizumab Systemic Sclerosis Understanding and Response Evaluation (TibuSURE)Systemic Sclerosis (SSc)
ACTIVE NOT_RECRUITING80 Analytics
PHASE2ACTIVE NOT_RECRUITING
Tibulizumab Systemic Sclerosis Understanding and Response Evaluation (TibuSURE)
Systemic Sclerosis (SSc)Unlock trial analytics

Study Endpoints

Primary Endpoints

[Period 1] Change from baseline in modified Rodnan Skin Score (mRSS) at 24 weeks
Week 24

The mRSS assesses skin thickness at 17 different cutaneous sites across the body using a scale from 0 (normal skin) to 3 (severe thickening), with a total score ranging from 0 (no thickening) to 51 (severe thickening in all 17 areas)

[Period 2] Safety and tolerability of tibulizumab
Week 52

Assessed by the incidence of all treatment-emergent adverse events (TEAEs), as well as changes from baseline in vital signs, electrocardiogram (ECG) parameters, and laboratory results

Secondary Endpoints

[Period 1] Change from baseline in quantitative interstitial lung disease (QILD) obtained with high-resolution quantitative tomography (HRCT) in the whole lung in participants with SSc-interstitial lung disease (ILD)
Week 24
[Period 1] Change from baseline in forced vital capacity (FVC) in participants with SSc-ILD
Week 24
[Period 1] Change from baseline in Health Assessment Questionnaire Disability Index (HAQ-DI)
Week 24
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
TibulizumabEXPERIMENTALSubcutaneous injection
PlaceboPLACEBO_COMPARATORSubcutaneous injection

Interventions

NameTypeDescription
TibulizumabBIOLOGICALAnti BAFF/IL-17 antibody
PlaceboOTHERPlacebo (inactive)
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo
Study Sites60

Inclusion Criteria: * Male or female, 18 to 75 years of age * Body mass index between 18.0 and 38.0 kg/m² * Fulfills classification criteria for SSc according to ACR/EULAR 2013 criteria * Has diffuse cutaneous SSc, defined as mRSS \>0 over at least one skin area proximal to the elbows and/or knees,...

Countries:United StatesArgentinaChileHungaryMexicoPolandRomaniaSerbiaSpainUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMJul 20, 2026NCT06843239Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJul 20, 2026NCT06843239Status: RECRUITING → ACTIVE_NOT_RECRUITING

Frequently asked questions about Tibulizumab

What is Tibulizumab used for in Systemic Sclerosis?

Tibulizumab is an investigational monoclonal antibody being developed for the treatment of Systemic Sclerosis (SSc), also known as scleroderma. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities. The drug is being studied in patients with this autoimmune connective tissue disease.

What does Tibulizumab target?

Tibulizumab targets and inhibits two molecular targets: IL17A and TNFSF13B. IL17A is a pro-inflammatory cytokine involved in immune responses, while TNFSF13B, also known as B-cell activating factor, plays a role in B-cell survival and function. By inhibiting both targets, the drug aims to modulate inflammatory and autoimmune pathways relevant to Systemic Sclerosis.

Who makes Tibulizumab?

Tibulizumab is being developed by Zura Bio Limited, a biopharmaceutical company traded on the stock exchange under the ticker symbol ZURA. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational therapy for Systemic Sclerosis.

What phase is Tibulizumab in?

Tibulizumab is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet received approval from regulatory agencies such as the FDA. The ongoing Phase 2 trial is designed to assess its effects in patients with Systemic Sclerosis.

What clinical trials is Tibulizumab in?

Tibulizumab is being evaluated in a Phase 2 clinical trial with the identifier NCT06843239, titled 'Tibulizumab Systemic Sclerosis Understanding and Response Evaluation (TibuSURE)'. This randomized, double-blind, placebo-controlled study enrolls approximately 80 participants across multiple countries, including the United States, Argentina, Chile, Hungary, Mexico, Poland, Romania, Serbia, Spain, and the United Kingdom.

Is Tibulizumab the same as any other drug?

Tibulizumab is a distinct investigational monoclonal antibody and no alternative names have been reported for this drug. It is being studied under the name Tibulizumab in clinical trials for Systemic Sclerosis, and no other brand or generic names have been associated with it in the available information.