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CBP-201

Phase 3

Undisclosed | Biologics | Other |Connect Biopharma Holdings Limited|Trials Updated: Nov 4, 2026

CBP-201 development status

Highest phase Phase 3 (NCT05614817)
Phase scored for CNTBPhase 1
Registered trials 9 across 1 sponsor since Jun 2020

CBP-201 target and mechanism

ModalityBiologics

Also known as Rademikibart, Rademikibart in prefilled syringe

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials4
Total Enrollment683

FDA Designations

No designations recorded

CBP-201 clinical trials

CBP-201 · 4 trials · 4 indications

Phase 2 3Phase 1 1
NCT07705737Rademikibart IV for Acute Asthma and COPD ExacerbationAsthma Acute
RECRUITING40 Analytics
NCT06940154Rademikibart Add-on Treatment of an Acute COPD Exacerbation (Seabreeze STAT COPD)COPD Acute Exacerbation
COMPLETED159 Analytics
NCT06940141Rademikibart Add-on Treatment of an Acute Asthma Exacerbation (Seabreeze STAT Asthma)Asthma Acute
COMPLETED160 Analytics
PHASE2RECRUITING
Rademikibart IV for Acute Asthma and COPD Exacerbation
Asthma AcuteUnlock trial analytics
PHASE2COMPLETED
Rademikibart Add-on Treatment of an Acute COPD Exacerbation (Seabreeze STAT COPD)
COPD Acute ExacerbationUnlock trial analytics
PHASE2COMPLETED
Rademikibart Add-on Treatment of an Acute Asthma Exacerbation (Seabreeze STAT Asthma)
Asthma AcuteUnlock trial analytics

Study Endpoints

Primary Endpoints

Change from baseline in post-BD FEV1
1 week
Treatment failure rate
28 days

Treatment failure is defined as death due to any cause, (re)admission to a hospital for COPD, ED (re)visit or unscheduled medical visit for worsening of COPD symptoms, or the necessity to intensify pharmacologic treatment (including second course of systemic steroids for COPD exacerbation) within 28 days after randomization.

Treatment failure rate within 28 days after randomization
28 days

Treatment failure is defined as death due to any cause, (re)admission to a hospital for asthma, ED (re)visit or unscheduled medical visit for worsening of asthma symptoms, or the necessity to intensify pharmacologic treatment (including second course of systemic steroids for asthma exacerbation) within 28 days after randomization.

Cmax: Maximum concentration
Pre-dose and 6hour, 24hour, 48hour, 72hour, 96hour, 120hour, Day8, Day10, Day11, Day12, Day15, Day18, Day22, Day29, Day36, Day43, Day57 post-dose

Pharmacokinetics similarity evaluation for test drug T1, test drug T2 and reference drug R

AUC0-t: Area under the plasma concentration-time curve from the start of administration to the last measurable concentration time point T
Pre-dose and 6hour, 24hour, 48hour, 72hour, 96hour, 120hour, Day8, Day10, Day11, Day12, Day15, Day18, Day22, Day29, Day36, Day43, Day57 post-dose

Pharmacokinetics similarity evaluation for test drug T1, test drug T2 and reference drug R

AUC0-inf: Area under the plasma concentration-time curve from the start of administration to infinity
Pre-dose and 6hour, 24hour, 48hour, 72hour, 96hour, 120hour, Day8, Day10, Day11, Day12, Day15, Day18, Day22, Day29, Day36, Day43, Day57 post-dose

Pharmacokinetics similarity evaluation for test drug T1, test drug T2 and reference drug R

Secondary Endpoints

Change from baseline in post-BD FEV1 at scheduled timepoints
Days 1, 2, 3, 14, 28, and 42
Incidence of treatment-emergent adverse events
42 days
Absolute change from baseline (CFB) in post-bronchodilator (BD) forced expiratory volume in 1 second (FEV1) at Week 1
Week 1
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
RademikibartEXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
Test drug (T1): CBP-201 injection (pre-filled syringe, 150 mg/1 mL)EXPERIMENTALStrength: pre-filled syringe, 150 mg/1 mL
Test drug (T2): CBP-201 injection (pre-filled syringe, 300 mg/2 mL)EXPERIMENTALStrength: pre-filled syringe, 300 mg/2 mL
Reference drug (R): CBP-201 injection (vial, 150 mg/1 mL)ACTIVE_COMPARATORStrength: vial, 150 mg/1 mL

Interventions

NameTypeDescription
RademikibartDRUGSingle 300 mg dose as a 2-minute IV push
Rademikibart in prefilled syringeCOMBINATION_PRODUCTParticipants receive 600 mg (4mL) of rademikibart administered subcutaneously.
Matching placebo in prefilled syringeDRUGParticipants receive 4mL of placebo matched to rademikibart administered subcutaneously.
Test drug (T1): CBP-201 injection (pre-filled syringe, 150 mg/1 mL)BIOLOGICALsubcutaneous injection of 2 doses on Day 1
Test drug (T2): CBP-201 injection (pre-filled syringe, 300 mg/2 mL)BIOLOGICALsubcutaneous injection of 1 dose on Day 1
Reference drug (R): CBP-201 injection (vial, 150 mg/1 mL)BIOLOGICALsubcutaneous injection of 2 doses on Day 1
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Eligibility Criteria

Age Range18 Years to 85 Years
SexALL
Healthy VolunteersNo
Study Sites3

Inclusion Criteria - Asthma cohort * Body weight of ≥40 kg and BMI ≤45 kg/m2 at SV1a. * Physician-diagnosed asthma * Currently receiving treatment with low, medium, to high dose ICS in combination with at least 1 additional asthma controller medication. * Must have experienced at least 1 asthma exa...

Countries:United StatesArgentinaAustraliaGeorgiaSerbiaUnited KingdomChina
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Recent Changes (Last 90 Days)

LOWNov 4, 2026NCT07705737lastUpdatePostDate: changed
LOWNov 4, 2026NCT07705737lastUpdatePostDate: changed
LOWOct 27, 2026NCT07705737lastUpdatePostDate: changed
LOWOct 27, 2026NCT07705737lastUpdatePostDate: changed
LOWOct 22, 2026NCT07705737lastUpdatePostDate: changed
LOWOct 22, 2026NCT07705737lastUpdatePostDate: changed
MEDIUMOct 17, 2026NCT06940154TRIAL_REMOVED: changed
MEDIUMOct 17, 2026NCT06940141TRIAL_REMOVED: changed
MEDIUMOct 17, 2026NCT06940154TRIAL_REMOVED: changed
MEDIUMOct 17, 2026NCT06940141TRIAL_REMOVED: changed
MEDIUMOct 17, 2026NCT06940154TRIAL_REMOVED: changed
MEDIUMOct 17, 2026NCT06940141TRIAL_REMOVED: changed
LOWOct 16, 2026NCT07705737lastUpdatePostDate: changed
LOWOct 16, 2026NCT07705737lastUpdatePostDate: changed
HIGHSep 16, 2026NCT06940141Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHSep 16, 2026NCT06940154Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHSep 16, 2026NCT06940141Status: ACTIVE_NOT_RECRUITING → COMPLETED
HIGHSep 16, 2026NCT06940154Status: ACTIVE_NOT_RECRUITING → COMPLETED
LOWAug 27, 2026NCT07705737Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 27, 2026NCT07705737Status: NOT_YET_RECRUITING → RECRUITING

Frequently asked questions about CBP-201

What is CBP-201?

CBP-201 is an investigational monoclonal antibody developed by Connect Biopharma Holdings Limited (ticker CNTB). It is being studied in clinical development and has been evaluated in a Phase 1 pharmacokinetics trial in healthy adult Chinese subjects. Its therapeutic indications have not been disclosed.

Who makes CBP-201?

CBP-201 is developed by Connect Biopharma Holdings Limited, which trades under the ticker CNTB. The company is the sponsor of the clinical program studying the monoclonal antibody.

What phase is CBP-201 in?

CBP-201 is in Phase 1 clinical development. It is investigational and has been studied in a completed Phase 1 trial. No later-phase trials are listed for this asset.

What clinical trials is CBP-201 in?

CBP-201 has been studied in one clinical trial, NCT05917782, titled A Study to Evaluate the Pharmacokinetics Similarity of CBP-201 in Healthy Adult Chinese Subjects. The Phase 1 trial was completed, enrolled 324 healthy adult participants in China, and used an active-controlled, randomized design.