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Nuzefatide pevedotin

Phase 2

Pancreatic Ductal Adenocarcinoma (PDAC) | ADC | Oncology |Bicycle Therapeutics plc|Trials Updated: Oct 16, 2026

Nuzefatide pevedotin development status

Highest phase Phase 2
Registered trials 1 across 1 sponsor since Jul 2026

Nuzefatide pevedotin target and mechanism

Molecular targetEphA2
Target class-Tide (Peptide)
ModalityADC

Also known as BT5528, nuzefatide pevedotin (BT5528)

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials2
Total Enrollment327

FDA Designations

No designations recorded

Nuzefatide pevedotin clinical trials

Nuzefatide pevedotin · 2 trials · 8 indications

Phase 2 1Phase 1 1
NCT07450859A Study of Nuzefatide Pevedotin (BT5528) in Patients With Metastatic Pancreatic Ductal Adenocarcinoma (PDAC)Pancreatic Ductal Adenocarcinoma (PDAC)
RECRUITING39 Analytics
PHASE2RECRUITING
A Study of Nuzefatide Pevedotin (BT5528) in Patients With Metastatic Pancreatic Ductal Adenocarcinoma (PDAC)
Pancreatic Ductal Adenocarcinoma (PDAC)Unlock trial analytics

Study Endpoints

Primary Endpoints

Objective Response Rate (ORR)
Up to approximately 3 years

Percentage of participants who achieve a confirmed complete response (CR) or partial response (PR) per Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as assessed by the Investigator

Part A-1 and A-2(escalations): Number of participants receiving BT5528 alone and in combination with nivolumab with treatment-emergent adverse events
From Cycle 1 Day 1 (each cycle is 28 days) until 30 days post last dose

Safety reported as incidence of treatment-emergent adverse events

Part A-1 and A-2 (escalations): Maximum tolerated dose (MTD) by the number of participants with dose limiting toxicities from BT5528 treatment alone and in combination with nivolumab
At the end of Cycle 1 (each cycle is 28 days)

Maximum Tolerated Dose (MTD)

Part B: Objective response rate by RECIST 1.1 in participants with solid tumors historically known for high expression of EphA2 tumor expression receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until disease progression or death or new anti-cancer therapy or loss of follow-up or withdrawal of consent (assessed every 8 weeks during study treatment)

Objective Response Rate (ORR)

Part B: Duration of response by RECIST 1.1 in participants with solid tumors historically known for high expression of EphA2 receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until disease progression or death or new anti-cancer therapy or loss of follow-up or withdrawal of consent (assessed every 8 weeks during study treatment)

Duration of Response (DOR)

Part B: Clinical benefit rate by RECIST 1.1 in participants with solid tumors historically known for high expression of EphA2 receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until disease progression or death or new anti-cancer therapy or loss of follow-up or withdrawal of consent (assessed every 8 weeks during study treatment)

Clinical benefit rate

Part B: Time to tumor progression by RECIST 1.1 in participants solid tumors historically known for high expression of EphA2 receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until disease progression or death or new anti-cancer therapy or loss of follow-up or withdrawal of consent (assessed every 8 weeks during study treatment)

Time to Progression (TTP)

Part B: Progression-free survival by RECIST 1.1 in participants solid tumors historically known for high expression of EphA2 receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until disease progression or death or new anti-cancer therapy or loss of follow-up or withdrawal of consent (assessed every 8 weeks during study treatment)

Progression free survival (PFS)

Part B: PFS at 6 months by RECIST 1.1 in participants with solid tumors historically known for high expression of EphA2 receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until disease progression or death or new anti-cancer therapy or loss of follow-up or withdrawal of consent (assessed every 8 weeks up to 6 months)

Progression free survival (PFS)

Part B: Overall survival (OS) at 1 year in participants solid tumors historically known for high expression of EphA2 receiving BT5528 treatment
From Cycle 1 Day 1 (each cycle is 28 days) until death or loss of follow-up or withdrawal of consent

Overall survival (OS)

Secondary Endpoints

Duration of Response (DoR) per RECIST v1.1
Up to approximately 3 years
Overall Survival (OS)
Up to approximately 3 years
Disease Control Rate (DCR) per RECIST v1.1
Up to approximately 3 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
nuzefatide pevedotin (BT5528) MonotherapyEXPERIMENTAL -
Phase I - Dose escalation (BT5528)EXPERIMENTALCohorts of participants will receive increasing doses of BT5528. It is expected that up to 72 participants will participate in this dose escalation arm.
Phase I - Dose escalation combination (BT5528 & nivolumab)EXPERIMENTALCohorts of participants will receive increasing doses of BT5528 and a standard dose of nivolumab. It is expected that up to 24 participants will participate in this dose-escalation combination arm.
Phase II - Dose expansion 1 (BT5528)EXPERIMENTALA cohort of participants will receive the selected dose of BT5528 as a monotherapy. It is expected that up to 164 patients have solid tumors (Cohort 1: urothelial cancers, Cohort 2: ovarian cancer, Cohort 3: non-small cell lung cancer, Cohort 4: head and neck cancer, Cohort 5: triple-negative breast cancer, and Cohort 6: gastric/upper gastrointestinal cancer) historically known for high expression of EphA2 will participate in this dose-expansion arm, Cohort 7: urothelial MMAE exposed, Cohort 8: head and neck squamous cell carcinoma

Interventions

NameTypeDescription
nuzefatide pevedotin (BT5528)DRUGParticipants will receive nuzefatide pevedotin (BT5528) via intravenous (IV) infusion every 2 weeks (Q2W)
BT5528DRUGParticipants will receive a 60-minute intravenous infusion of BT5528 once a week (Days 1, 8, 15, and 22) or every other week (Days 1 and 15) on a 4-week cycle at the selected dose.
NivolumabDRUGParticipants will receive nivolumab at 480mg intravenous infusion every 4 weeks.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites8

Inclusion Criteria * At least 18 years of age at the time of signature of the informed consent form (or at least 19 years where locally defined as minimum age of consent). * Measurable disease as defined by RECIST v1.1. * Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1. * Lif...

Countries:United StatesSouth KoreaBelgiumSpainUnited Kingdom
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Recent Changes (Last 90 Days)

MEDIUMOct 16, 2026NCT04180371primaryCompletionDate: changed
MEDIUMOct 16, 2026NCT04180371primaryCompletionDate: changed
LOWSep 19, 2026NCT07450859lastUpdatePostDate: changed
LOWSep 19, 2026NCT07450859lastUpdatePostDate: changed
LOWSep 19, 2026NCT07450859lastUpdatePostDate: changed
LOWSep 17, 2026NCT07450859lastUpdatePostDate: changed
LOWSep 17, 2026NCT07450859lastUpdatePostDate: changed
LOWAug 14, 2026NCT07450859lastUpdatePostDate: changed
LOWAug 14, 2026NCT07450859lastUpdatePostDate: changed
LOWAug 14, 2026NCT07450859lastUpdatePostDate: changed
LOWAug 1, 2026NCT07450859lastUpdatePostDate: changed
LOWAug 1, 2026NCT07450859lastUpdatePostDate: changed
LOWAug 1, 2026NCT07450859lastUpdatePostDate: changed

Frequently asked questions about Nuzefatide pevedotin

What is nuzefatide pevedotin used for?

Nuzefatide pevedotin is an investigational antibody-drug conjugate being studied in oncology for advanced solid tumors historically known for high EphA2 expression and for pancreatic ductal adenocarcinoma (PDAC). It is not approved for any indication and remains in clinical development.

What does nuzefatide pevedotin target?

Nuzefatide pevedotin targets EphA2, a receptor tyrosine kinase that is overexpressed in several solid tumor types. The agent is an antibody-drug conjugate built on Bicycle Therapeutics' bicyclic peptide, or -tide, platform, which delivers a cytotoxic payload to EphA2-expressing tumor cells.

Who is developing nuzefatide pevedotin?

Nuzefatide pevedotin is being developed by Bicycle Therapeutics plc, which trades on Nasdaq under the ticker BCYC. The company is the sponsor of the clinical program evaluating the agent in EphA2-associated solid tumors and in pancreatic ductal adenocarcinoma.

What phase is nuzefatide pevedotin in?

Nuzefatide pevedotin is in Phase 1 development, with a Phase 2 study also recruiting in metastatic pancreatic ductal adenocarcinoma. It is an investigational agent and has not been approved by the FDA or any other regulatory authority for commercial use.

What clinical trials is nuzefatide pevedotin in?

Nuzefatide pevedotin is being evaluated in NCT04180371, a Phase 1 study in advanced solid tumors associated with EphA2 expression that is active but no longer recruiting, and in NCT07450859, a recruiting Phase 2 study in metastatic pancreatic ductal adenocarcinoma conducted in the United States and South Korea.

Is nuzefatide pevedotin the same as BT5528?

Yes. Nuzefatide pevedotin is also known as BT5528, and the two names refer to the same investigational antibody-drug conjugate from Bicycle Therapeutics. Publications, trial records, and company materials use both designations interchangeably for this EphA2-targeted agent.