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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT07044336




Registration number
NCT07044336
Ethics application status
Date submitted
23/06/2025
Date registered
30/06/2025
Date last updated
28/08/2025

Titles & IDs
Public title
Puxitatug Samrotecan (AZD8205) Monotherapy vs Chemotherapy in B7-H4-selected Endometrial Cancer (Bluestar-Endometrial01)
Scientific title
Puxitatug Samrotecan (AZD8205) Monotherapy vs Chemotherapy in B7-H4 Selected Advanced/Metastatic Endometrial Cancer Who Progressed On or After Platinum Based Chemotherapy and Anti-PD-1/Anti-PD-L1 Therapy (Bluestar-Endometrial01)
Secondary ID [1] 0 0
D6900C00003
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Endometrial Cancer 0 0
Malignant Solid Tumour 0 0
Condition category
Condition code
Cancer 0 0 0 0
Womb (Uterine or endometrial cancer)

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Treatment: Drugs - Puxitatug Samrotecan
Treatment: Drugs - Doxorubicin
Treatment: Drugs - Paclitaxel

Experimental: Puxitatug Samrotecan - P-Sam IV (intravenous) Q3W .

Active comparator: Chemotherapy - Physician's choice of chemotherapy

Doxorubicin IV Q3W or Paclitaxel IV on Days 1, 8, and 15 in 28 day cycles.


Treatment: Drugs: Puxitatug Samrotecan
2.4 mg/kg on Day 1 Q3W Route of administration: IV infusion

Treatment: Drugs: Doxorubicin
60 mg/m2 on Day 1 Q3W Route of administration: IV

Treatment: Drugs: Paclitaxel
80 mg/m2 on Days 1, 8, and 15 in 28-day cycles Route of Administration: IV

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

Outcomes
Primary outcome [1] 0 0
Progression Free Survival (PFS) for Arm A vs Arm B
Timepoint [1] 0 0
Approximately 3 years
Primary outcome [2] 0 0
Overall survival (OS) for Arm A vs Arm B
Timepoint [2] 0 0
Approximately 3 years
Secondary outcome [1] 0 0
Assessment of Overall Response Rate (ORR) for Arm A vs Arm B
Timepoint [1] 0 0
Approximately 3 years
Secondary outcome [2] 0 0
Assessment of Duration of response (DoR) for Arm A vs Arm B
Timepoint [2] 0 0
Approximately 3 years
Secondary outcome [3] 0 0
Assessment of progression-free survival 2 (PFS2) for Arm A vs Arm B
Timepoint [3] 0 0
Approximately 3 years
Secondary outcome [4] 0 0
Time until first subsequent anticancer therapy after discontinuation of the randomized treatment, or death (TFST) for Arm A vs Arm B
Timepoint [4] 0 0
Approximately 3 years
Secondary outcome [5] 0 0
Time until the second subsequent anticancer therapy after discontinuation of the first subsequent treatment, or death (TSST) for Arm A vs Arm B
Timepoint [5] 0 0
Approximately 3 years
Secondary outcome [6] 0 0
Time until discontinuation of treatment for any reason, or death (TDT) for Arm A vs Arm B
Timepoint [6] 0 0
Approximately 3 years
Secondary outcome [7] 0 0
Worsening in endometrial symptoms for Arm A vs Arm B
Timepoint [7] 0 0
Approximately 3 years

Eligibility
Key inclusion criteria
The main inclusion criteria include but are not limited to the following:

* Histologically confirmed diagnosis of endometrial carcinoma or carcinosarcoma.
* Recurrent/metastatic EC ie, with radiological or objective evidence of recurrence or progression.
* Has received prior platinum-based chemotherapy and anti-programmed cell death 1 protein (PD-1)/anti- programmed cell death ligand 1 (PD-L1) therapy, either separately or in combination.
* A WHO/ECOG performance status of 0 or 1 at Screening.
* Has radiographically measurable disease by RECIST 1.1

The main exclusion criteria include but are not limited to the following:

* Had uterine sarcomas or uterine neuroendocrine carcinoma.
* Has had a recurrence of endometrial carcinoma or carcinosarcoma more than > 12 months after completing platinum-based therapy administered in the curative-intent setting without any additional platinum-based therapy received in the recurrent setting.
* Had previously received treatment with any therapy (approved or investigational) that contained a TOP1i including ADCs .
* Had previously received treatment with AZD8205 or another B7-H4 targeting agent.
* History of (non-infectious) ILD/pneumonitis that required steroids, has current ILD/pneumonitis, or where suspected ILD/pneumonitis cannot be ruled out by imaging at screening.
* Has clinically severe pulmonary compromise resulting from intercurrent pulmonary illnesses.
* Active or previously documented autoimmune or inflammatory disorders
Minimum age
18 Years
Maximum age
No limit
Sex
Females
Can healthy volunteers participate?
No
Key exclusion criteria

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled 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
Blinded (masking used)
Who is / are masked / blinded?


The people assessing the outcomes
Intervention assignment
Parallel
Other design features
Phase
Phase 3
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)
Recruitment hospital [1] 0 0
Research Site - Melbourne
Recruitment hospital [2] 0 0
Research Site - Randwick
Recruitment hospital [3] 0 0
Research Site - Westmead
Recruitment postcode(s) [1] 0 0
3000 - Melbourne
Recruitment postcode(s) [2] 0 0
2031 - Randwick
Recruitment postcode(s) [3] 0 0
2145 - Westmead
Recruitment outside Australia
Country [1] 0 0
United States of America
State/province [1] 0 0
Florida
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United States of America
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Hawaii
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United States of America
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Illinois
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Indiana
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United States of America
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Maine
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United States of America
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Maryland
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Michigan
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Minnesota
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New Jersey
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New Mexico
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New York
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North Carolina
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Ohio
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Pennsylvania
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South Dakota
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Texas
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Virginia
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Washington
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West Virginia
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United States of America
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Wisconsin
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Argentina
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Buenos Aires
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Argentina
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Capital Federal
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Argentina
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La Rioja
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Argentina
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Pergamino
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Austria
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Graz
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Austria
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Vienna
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Belgium
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Brussels
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Belgium
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Charleroi
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Belgium
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Edegem
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Ghent
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Belgium
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Leuven
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Liège
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Belgium
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Namur
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Brazil
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Rio de Janeiro
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Brazil
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Sorocaba
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Canada
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Alberta
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Canada
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Quebec
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China
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Beijing
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China
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Chengdu
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China
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Chongqing
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China
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Jinan
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China
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China
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Shenyang
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China
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Tianjin
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Czechia
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Brno
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Czechia
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Prague
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Czechia
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V Uvalu 84
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Tampere
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Lille
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Paris
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France
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Plerin SUR MER
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France
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Toulouse
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Georgia
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Batumi
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Germany
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Heidelberg
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Germany
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Münster
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Greece
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Athens
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Greece
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Thessaloniki
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Hungary
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Budapest
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Hungary
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Debrecen
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Hungary
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Gyor
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Israel
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Haifa
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Holon
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Israel
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Jerusalem
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Israel
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Ramat Gan
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Israel
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Tel Aviv
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Italy
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Bologna
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Catania
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Florence
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Milan
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Monza
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Napoli
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Parma
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Pisa
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Italy
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Ponderano
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Torino
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Chuoku
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Hidaka-shi
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Isehara-shi
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Kotoku
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Japan
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Kurume-shi
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Matsuyama
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Japan
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Minatoku
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Nagoya
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Okayama
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Japan
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Sapporo
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Japan
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Suita
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Japan
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Sunto-gun
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Japan
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Toon-Shi
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Japan
State/province [98] 0 0
Yokohama
Country [99] 0 0
Slovenia
State/province [99] 0 0
Ljubljana
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Slovenia
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Maribor
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South Korea
State/province [101] 0 0
Goyang-si
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South Korea
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Gwangjin-gu
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South Korea
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Seoul
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South Korea
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Songpa-gu
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Spain
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Barcelona
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Spain
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Córdoba
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Spain
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Hospitalet DEL Llobregat
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Spain
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Madrid
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Spain
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Santiago de Compostela
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Spain
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Seville
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Taiwan
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New Taipei City
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Taiwan
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Taichung
Country [113] 0 0
Taiwan
State/province [113] 0 0
Tainan City
Country [114] 0 0
Taiwan
State/province [114] 0 0
Taipei

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

Ethics approval
Ethics application status

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

Contacts
Principal investigator
Name 0 0
Brian Slomovitz, MD
Address 0 0
Icahn School of Medicine at Mount Sinai
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
AstraZeneca Clinical Study Information Center
Address 0 0
Country 0 0
Phone 0 0
1-877-240-9479
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)?
Yes
What data in particular will be shared?
Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

Supporting document/s available: Study protocol, Statistical analysis plan (SAP)
When will data be available (start and end dates)?
AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA PhRMA Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Available to whom?
When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.
Available for what types of analyses?
How or where can data be obtained?
IPD available at link: https://vivli.org/


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.