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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT06840483




Registration number
NCT06840483
Ethics application status
Date submitted
18/02/2025
Date registered
21/02/2025
Date last updated
16/09/2025

Titles & IDs
Public title
Study of Zelenectide Pevedotin in Participants With Advanced Breast Cancer
Scientific title
Phase 2 Study of Zelenectide Pevedotin in Participants With NECTIN4 Amplified Advanced Breast Cancer
Secondary ID [1] 0 0
2024-517868-33-00
Secondary ID [2] 0 0
BT8009-201 (Duravelo-3)
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Breast Cancer 0 0
Condition category
Condition code
Cancer 0 0 0 0
Breast

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Zelenectide pevedotin (BT8009)

Experimental: Cohort A (HR+/HER2-negative breast cancer) -

Experimental: Cohort B (TNBC) -


Treatment: Drugs: Zelenectide pevedotin (BT8009)
Participants will receive zelenectide pevedotin on Days 1, and 8 of every 21-day cycle.

Intervention code [1] 0 0
Treatment: Drugs
Comparator / control treatment
Control group

Outcomes
Primary outcome [1] 0 0
Objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors per RECIST version 1.1 as assessed by the Investigator
Timepoint [1] 0 0
Up to approximately 3 years
Secondary outcome [1] 0 0
Number of participants reporting adverse events (AEs) and Serious adverse events (SAEs)
Timepoint [1] 0 0
Up to approximately 3 years
Secondary outcome [2] 0 0
Duration of Response (DOR) per RECIST v1.1 as assessed by the Investigator
Timepoint [2] 0 0
Up to approximately 3 years
Secondary outcome [3] 0 0
Disease Control Rate (DCR) per RECIST v1.1 as assessed by the Investigator
Timepoint [3] 0 0
Up to approximately 3 years
Secondary outcome [4] 0 0
Clinical Benefit Rate (CBR) per RECIST v1.1 as assessed by the Investigator
Timepoint [4] 0 0
Up to approximately 3 years
Secondary outcome [5] 0 0
Progression Free Survival (PFS) per RECIST v1.1 as assessed by the Investigator
Timepoint [5] 0 0
Up to approximately 3 years
Secondary outcome [6] 0 0
Overall Survival
Timepoint [6] 0 0
Up to approximately 4 years
Secondary outcome [7] 0 0
Time To Progression (TTP) per RECIST v1.1 as assessed by the Investigator
Timepoint [7] 0 0
Up to approximately 4 years

Eligibility
Key inclusion criteria
Inclusion Criteria

* Archival or fresh tumor tissue comprised of TNBC or HR+/HER2-negative invasive breast cancer available for NECTIN4 gene amplification testing.
* Confirmed NECTIN4 gene amplification by an analytically validated clinical trial assay (CTA).
* Measurable disease as defined by RECIST v1.1.
* Life expectancy = 12 weeks.
* Eastern Cooperative Oncology Group Performance Status (ECOG PS) of = 1.

1. Cohort A Specific Histologically or cytologically confirmed HR+/HER2-negative endocrine resistant/refractory breast cancer according to ASCO-CAP guidelines and received at least 1 and up to 3 prior lines of non-endocrine-based therapy for advanced disease.
2. Cohort B Specific Histologically or cytologically confirmed TNBC, including ER-low positive breast cancers (1-10% of cells expressing hormonal receptors by IHC), according to ASCO-CAP guidelines and have received at least 1 and up to 3 prior lines of systemic therapy for advanced disease.
Minimum age
18 Years
Maximum age
No limit
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
Exclusion Criteria

* Prior treatment with any antibody drug conjugate (ADC) containing an Monomethyl Auristatin E (MMAE) (vedotin) payload or other MMAE-based therapy.
* Known hypersensitivity or allergy to any of the ingredients of any of the study interventions, or to MMAE.
* Previously tested HER2-positive (IHC 3+ or ISH+) on prior pathology testing (per ASCO-CAP guidelines).
* Active keratitis or corneal ulcerations.
* Active or untreated central nervous system (CNS) metastases.
* Uncontrolled diabetes or hypertension.
* Uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures (once monthly or more frequently).
* Active interstitial lung disease or pneumonitis requiring ongoing treatment with steroids (>10mg/day of prednisone or equivalent) or other immunosuppressive medications.
* Requirement, while on study, for treatment with strong inhibitors or strong inducers of human cytochrome P450 3A (CYP3A) or inhibitors of P-glycoprotein (P-gp) including herbal- or food-based inhibitors.
* Prior treatment with any systemic anticancer therapy within 28 days or 5 half-lives, whichever is shorter, prior to first dose of study treatment

Note: Additional protocol defined Inclusion/Exclusion criteria apply

Study design
Purpose of the study
Treatment
Allocation to intervention
Non-randomised trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Phase 2
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Recruiting
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
Sample size
Target
Accrual to date
Final
Recruitment in Australia
Recruitment state(s)
VIC
Recruitment hospital [1] 0 0
Peter MacCallum Cancer Centre - Melbourne
Recruitment postcode(s) [1] 0 0
3000 - Melbourne
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Colorado
Country [2] 0 0
United States of America
State/province [2] 0 0
Connecticut
Country [3] 0 0
United States of America
State/province [3] 0 0
Massachusetts
Country [4] 0 0
United States of America
State/province [4] 0 0
Michigan
Country [5] 0 0
United States of America
State/province [5] 0 0
Missouri
Country [6] 0 0
United States of America
State/province [6] 0 0
New York
Country [7] 0 0
United States of America
State/province [7] 0 0
North Carolina
Country [8] 0 0
United States of America
State/province [8] 0 0
Oregon
Country [9] 0 0
United States of America
State/province [9] 0 0
Tennessee
Country [10] 0 0
United States of America
State/province [10] 0 0
Texas
Country [11] 0 0
United States of America
State/province [11] 0 0
Virginia
Country [12] 0 0
United States of America
State/province [12] 0 0
Washington
Country [13] 0 0
France
State/province [13] 0 0
Lyon
Country [14] 0 0
France
State/province [14] 0 0
Rennes
Country [15] 0 0
France
State/province [15] 0 0
Toulouse
Country [16] 0 0
Italy
State/province [16] 0 0
Forli/Cesena
Country [17] 0 0
Italy
State/province [17] 0 0
Ancona
Country [18] 0 0
Italy
State/province [18] 0 0
Milan
Country [19] 0 0
Spain
State/province [19] 0 0
Barcelona
Country [20] 0 0
Spain
State/province [20] 0 0
Madrid
Country [21] 0 0
United Kingdom
State/province [21] 0 0
London
Country [22] 0 0
United Kingdom
State/province [22] 0 0
Sutton

Funding & Sponsors
Primary sponsor type
Commercial sector/industry
Name
BicycleTx Limited
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
BicycleTx Limited
Address 0 0
Country 0 0
Phone 0 0
617-945-8155
Fax 0 0
Email 0 0
Contact person for scientific queries

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
No/undecided IPD sharing reason/comment


What supporting documents are/will be available?

No Supporting Document Provided


Results publications and other study-related documents

No documents have been uploaded by study researchers.