Clinical trial • Phase I • Oncology

XmAb541 for Advanced solid tumors

Phase I trial of XmAb541 for Advanced solid tumors. 182 participants.

Overview

Trial Therapeutic Area
Oncology
Trial Disease
Advanced solid tumors
Trial Stage
Phase I

Key dates

Initial CTIS Submission Date
04-07-2025
First CTIS Authorization Date
27-10-2025

Trial design

Phase I trial across 15 sites in Belgium, Denmark, France and others.

Target Sample Size
182

Eligibility

Recruits 182 Vulnerable population selected; no details on consent or assent provided.

Vulnerable Population
Vulnerable population selected; no details on consent or assent provided

Recruitment

Planned Sample Size
182
Recruitment Window Months
23

Geography

Total Number Of Sites
15
Total Number Of Participants
70

Belgium

Earliest CTIS Part Ii Submission Date
29-09-2025
Latest Decision Or Authorization Date
29-10-2025
Processing Time Days
30
Number Of Sites
4
Number Of Participants
20

Sites

Site Name
UZ Leuven
Department Name
Gynecologic Oncology
Principal Investigator Name
Toon Van Gorp
Principal Investigator Email
Toon.Vangorp@uzleuven.be
Contact Person Name
Toon Van Gorp
Contact Person Email
Toon.Vangorp@uzleuven.be
Site Name
Centre hospitalier universitaire de Liege
Department Name
Medical Oncology
Principal Investigator Name
Charles Pottier
Principal Investigator Email
Charles.Pottier@chuliege.be
Contact Person Name
Charles Pottier
Contact Person Email
Charles.Pottier@chuliege.be
Site Name
Institut Jules Bordet
Department Name
Gynecologic Oncology
Principal Investigator Name
Laetitia Collet
Principal Investigator Email
laetitia.collet@hubruxelles.be
Contact Person Name
Laetitia Collet
Contact Person Email
laetitia.collet@hubruxelles.be
Site Name
Algemeen Ziekenhuis Groeninge
Department Name
Medical Oncology
Principal Investigator Name
Philip R Debruyne
Principal Investigator Email
philip.debruyne@azgroeninge.be
Contact Person Name
Philip R Debruyne
Contact Person Email
philip.debruyne@azgroeninge.be

Denmark

Earliest CTIS Part Ii Submission Date
17-10-2025
Latest Decision Or Authorization Date
27-10-2025
Processing Time Days
10
Number Of Sites
3
Number Of Participants
15

Sites

Site Name
Rigshospitalet
Department Name
Clinical Oncology
Principal Investigator Name
Kristoffer Staal Rohrberg
Principal Investigator Email
kristoffer.staal.rohrberg@regionh.dk
Contact Person Name
Kristoffer Staal Rohrberg
Site Name
Odense University Hospital
Department Name
Gynecologic Oncology
Principal Investigator Name
Trine Lembrecht Jorgensen
Principal Investigator Email
Trine.Joergensen@rsyd.dk
Contact Person Name
Trine Lembrecht Jorgensen
Contact Person Email
Trine.Joergensen@rsyd.dk
Site Name
Region Hovedstaden
Department Name
Oncology- Phase 1 Lead
Principal Investigator Name
Rikke Løvendahl Eefsen
Principal Investigator Email
rikke.helene.loevendahl.eefsen@regionh.dk
Contact Person Name
Rikke Løvendahl Eefsen

France

Earliest CTIS Part Ii Submission Date
24-09-2025
Latest Decision Or Authorization Date
03-11-2025
Processing Time Days
40
Number Of Sites
3
Number Of Participants
15

Sites

Site Name
Institut Gustave Roussy
Department Name
Gynecologic Oncology
Principal Investigator Name
Kaissa Ouali
Principal Investigator Email
kaissa.OUALI@gustaveroussey.fr
Contact Person Name
Kaissa Ouali
Contact Person Email
kaissa.OUALI@gustaveroussey.fr
Site Name
Hospices Civils De Lyon
Department Name
Gynecologic Medical Oncology
Principal Investigator Name
Benoit You
Principal Investigator Email
benoit.you@laposte.net
Contact Person Name
Benoit You
Contact Person Email
benoit.you@laposte.net
Site Name
Institut Paoli Calmettes
Department Name
Oncology
Principal Investigator Name
Cecile Vicier
Principal Investigator Email
VICIERC@ipc.unicancer.fr
Contact Person Name
Cecile Vicier
Contact Person Email
VICIERC@ipc.unicancer.fr

Spain

Earliest CTIS Part Ii Submission Date
15-09-2025
Latest Decision Or Authorization Date
30-10-2025
Processing Time Days
45
Number Of Sites
5
Number Of Participants
20

Sites

Site Name
Hospital Quironsalud Barcelona
Department Name
Medical Oncology
Principal Investigator Name
Guzman Alonso Casal
Principal Investigator Email
galonso@nextoncology.eu
Contact Person Name
Guzman Alonso Casal
Contact Person Email
galonso@nextoncology.eu
Site Name
Hospital Universitario Quironsalud Madrid
Department Name
Gynecologic Oncology
Principal Investigator Name
Valentina Boni
Principal Investigator Email
vboni@nextoncology.eu
Contact Person Name
Valentina Boni
Contact Person Email
vboni@nextoncology.eu
Site Name
Clinica Universidad De Navarra (Madrid)
Department Name
Gastrointestinal Oncology-Phase 1 Unit
Principal Investigator Name
Ignacio Matos García
Principal Investigator Email
imatos@unav.es
Contact Person Name
Ignacio Matos García
Contact Person Email
imatos@unav.es
Site Name
Vall D Hebron Institute Of Oncology
Department Name
Medical Oncology- Phase 1 Clinical Trials Unit
Principal Investigator Name
Alberto Hernando Calvo
Principal Investigator Email
albertohernando@vhio.net
Contact Person Name
Alberto Hernando Calvo
Contact Person Email
albertohernando@vhio.net
Site Name
Clinica Universidad De Navarra (Pamplona)
Department Name
Gastrointestinal Oncology-Phase 1 Unit
Principal Investigator Name
Ignacio Matos García
Principal Investigator Email
imatos@unav.es
Contact Person Name
Ignacio Matos García
Contact Person Email
imatos@unav.es

Sponsor

Primary sponsor

Full Name
Xencor Inc.
Organisation Type
Pharmaceutical company
Country Of Registered Address
United States

Investigational products

Investigational Product Name
XmAb541

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