Clinical trial • Phase II • Oncology
PETOSEMTAMAB for Non-small cell lung cancer
Phase II trial of PETOSEMTAMAB for Non-small cell lung cancer. None/Not specified-controlled. 90 participants.
Overview
- Trial Therapeutic Area
- Oncology
- Trial Disease
- Non-small cell lung cancer
- Trial Stage
- Phase II
- Drug Modality
- Other antibody | Monoclonal antibody
Key dates
- Initial CTIS Submission Date
- 27-11-2025
- First CTIS Authorization Date
- 09-04-2026
Trial design
None/Not specified-controlled Phase II trial in Belgium, France, Italy and others.
- Comparator
- None/Not specified
- Target Sample Size
- 90
Eligibility
Recruits 90 No vulnerable populations selected. Participants must be adults (Age ≥ 18) and able to provide written informed consent; assent/parental consent is not applicable..
- Vulnerable Population
- No vulnerable populations selected. Participants must be adults (Age ≥ 18) and able to provide written informed consent; assent/parental consent is not applicable.
Inclusion criteria
- {"criterion_text":"- 1. Able to provide written informed consent and is willing and able to comply with all study procedures and contraception requirements (see Appendix 4)\n- 6. Adequate hematologic function as defined below: a. Platelet count ≥ 100 × 109/L (without transfusion within the past 7 days) b. ANC ≥ 1.5 × 109/L c. Hemoglobin ≥ 9 g/dL (without transfusion within the past 7 days)\n- 7. Creatinine clearance ≥ 60 mL/min calculated according to the Cockroft and Gault formula\n- 2. Age ≥ 18 years at the signing of ICF\n- 3. At least 1 measurable lesion as defined by RECIST 1.1 by radiologic methods and confirmed by the Investigator to meet both of the following criteria: a. Non-nodal lesion that measures ≥ 10 mm in the longest diameter or lymph node lesion that measures ≥ 15 mm in the short axis b. The lesion is suitable for repeat measurement using CT/MRI. Lesions that have had external beam radiotherapy or locoregional therapy must show radiographic evidence of subsequent growth.\n- 4. ECOG performance status of 0 or 1\n- 5. Life expectancy ≥ 12 weeks, in the opinion of the Investigator\n- 8. Please refer to the protocol for further criteria"}
Exclusion criteria
- {"criterion_text":"- 1. Has untreated CNS metastases and/or carcinomatous meningitis a. Participants whose brain metastases have been treated may participate provided they show radiographic stability (defined as 2 brain images, both obtained after treatment to the brain metastases at least 4 weeks apart, that show no evidence of intracranial progression) b. In addition, any neurologic symptoms that developed either as a result of the brain metastases or their treatment must have returned to baseline or resolved. Any steroids administered as part of this therapy must be completed at least 3 days prior to study medication.\n- 2. Participation in an interventional clinical study with any investigational drug within 4 weeks prior to the first dose of study treatment OR participation in any clinical study with petosemtamab at any time prior to the first dose of study treatment, regardless of whether petosemtamab was received\n- 3. Please refer to the protocol for further criteria"}
Endpoints
Primary endpoints
- {"endpoint_text":"- ORR per Investigator assessment using RECIST 1.1","definition_or_measurement_approach":"Investigator assessment using RECIST 1.1"}
Secondary endpoints
- {"endpoint_text":"- DoR per Investigator assessment using RECIST 1.1\n- DCR per Investigator assessment using RECIST 1.1\n- CBR per Investigator assessment using RECIST 1.1\n- PFS per Investigator assessment using RECIST 1.1\n- OS\n- AEs\n- Clinical laboratory data\n- Integrated analysis using population PK model approach\n- Please refer to Protocol for further secondary end points","definition_or_measurement_approach":"DoR/DCR/CBR/PFS: per Investigator assessment using RECIST 1.1; OS: overall survival (time-to-event); AEs: adverse event reporting per safety procedures; Clinical laboratory data: clinical laboratory assessments; Integrated analysis: using population PK model approach; 'Please refer to Protocol' - no definition provided here."}
Recruitment
- Planned Sample Size
- 90
- Recruitment Window Months
- 60
- Consent Approach
- Written informed consent required from each participant (must be able to provide written informed consent). Subject information and informed consent form documents are provided (multiple language versions available as listed, including French, Dutch, Italian, Spanish, Polish and English).
Geography
- Total Number Of Sites
- 38
- Total Number Of Participants
- 90
Belgium
- Earliest CTIS Part Ii Submission Date
- 23-03-2026
- Latest Decision Or Authorization Date
- 09-04-2026
- Processing Time Days
- 17
- Number Of Sites
- 2
- Number Of Participants
- 15
Sites
- Site Name
- Institut Jules Bordet
- Department Name
- Lung Oncology
- Contact Person Name
- Mariana Brandão
- Contact Person Email
- mariana.brandao@hubruxelles.be
- Site Name
- UZ Leuven
- Department Name
- Respiratory Oncology
- Contact Person Name
- Els Wauters
- Contact Person Email
- els.wauters@uzleuven.be
France
- Earliest CTIS Part Ii Submission Date
- 24-02-2026
- Latest Decision Or Authorization Date
- 13-04-2026
- Processing Time Days
- 48
- Number Of Sites
- 12
- Number Of Participants
- 15
Sites
- Site Name
- Assistance Publique Hopitaux De Paris
- Department Name
- Oncology Thoracic Unit
- Contact Person Name
- Marie Wislez
- Contact Person Email
- marie.wislez@aphp.fr
- Site Name
- Institut Paoli Calmettes
- Department Name
- Medical Oncology
- Contact Person Name
- Anne Madroszyk-Flandin
- Contact Person Email
- madroszyka@ipc.unicancer.fr
- Site Name
- Fondation Hopital Saint Joseph
- Department Name
- Oncology
- Contact Person Name
- Carole Helissey
- Contact Person Email
- chelissey@ghpsj.fr
- Site Name
- Centre Hospitalier Universitaire De Nantes
- Department Name
- Oncology
- Contact Person Name
- Elvire Pons-Tostivint
- Contact Person Email
- elvire.pons@chu-nantes.fr
- Site Name
- Centre Hospitalier Intercommunal Creteil
- Department Name
- Pneumology
- Contact Person Name
- Jean Bernard Auliac
- Contact Person Email
- Jean-Bernard.auliac@chicreteil.fr
- Site Name
- Institut Regional Du Cancer De Montpellier
- Department Name
- Medical Oncology
- Contact Person Name
- Quentin Thomas
- Contact Person Email
- Quentin.Thomas@icm.unicancer.fr
- Site Name
- Centre Hospitalier Regional Et Universitaire De Brest
- Department Name
- Oncology
- Contact Person Name
- Gilles Quere
- Contact Person Email
- gilles.quere@chu-brest.fr
- Site Name
- Centre Hospitalier Universitaire De Rennes
- Department Name
- Pneumology
- Contact Person Name
- Hervé Lena
- Contact Person Email
- herve.lena@chu-rennes.fr
- Site Name
- Institut De Cancerologie De L Ouest
- Department Name
- Medical Oncology
- Contact Person Name
- Sandrine Hiret
- Contact Person Email
- sandrine.hiret@ico-unicancer.fr
- Site Name
- Centre Hospitalier Universitaire Grenoble Alpes
- Department Name
- Oncology
- Contact Person Name
- Denis Moro-Sibilot
- Contact Person Email
- DMoro-Sibilot@chu-grenoble.fr
- Site Name
- Institut Curie
- Department Name
- Pneumology
- Contact Person Name
- Nicolas Girard
- Contact Person Email
- nicolas.girard2@curie.fr
- Site Name
- Centre Hospitalier Universitaire De Bordeaux
- Department Name
- Oncology
- Contact Person Name
- Charlotte Domblides
- Contact Person Email
- charlotte.domblides@chu-bordeaux.fr
Italy
- Earliest CTIS Part Ii Submission Date
- 23-02-2026
- Latest Decision Or Authorization Date
- 09-04-2026
- Processing Time Days
- 45
- Number Of Sites
- 5
- Number Of Participants
- 15
Sites
- Site Name
- ASST Grande Ospedale Metropolitano Niguarda
- Department Name
- Falck Oncology Complex Structure
- Contact Person Name
- Diego Signorelli
- Contact Person Email
- diego.signorelli@ospedaleniguarda.it
- Site Name
- Azienda Ospedaliero Universitaria Careggi
- Department Name
- D.O.S. Oncological Radiotherapy
- Contact Person Name
- Lorenzo Livi
- Contact Person Email
- lorenzo.livi@unifi.it
- Site Name
- I.F.O. Istituti Fisioterapici Ospitalieri
- Department Name
- Oncology Medicine 2
- Contact Person Name
- Federico Cappuzzo
- Contact Person Email
- federico.cappuzzo@ifo.it
- Site Name
- Azienda Ospedaliero-Universitaria Di Bologna IRCCS Istituto Di Ricerca E Di Cura A Carattere Scientifico
- Department Name
- Oncology-Hematology
- Contact Person Name
- Francesco Gelsomino
- Contact Person Email
- francesco_gelsomino@aosp.bo.it
- Site Name
- Humanitas Mirasole S.p.A.
- Department Name
- Medical Oncology and Hematology
- Contact Person Name
- Luca Toschi
- Contact Person Email
- luca.toschi@cancercenter.humanitas.it
Spain
- Earliest CTIS Part Ii Submission Date
- 05-03-2026
- Latest Decision Or Authorization Date
- 09-04-2026
- Processing Time Days
- 35
- Number Of Sites
- 12
- Number Of Participants
- 15
Sites
- Site Name
- H.C. Hospitales S.L.
- Department Name
- Oncology
- Contact Person Name
- José Manuel Trigo
- Contact Person Email
- jmtrigo@seom.org
- Site Name
- Complejo Hospitalario Universitario Insular Materno Infantil
- Contact Person Name
- Delvys Rodriguez Abreu
- Contact Person Email
- delvysra@yahoo.com
- Site Name
- Hospital Universitario 12 De Octubre
- Department Name
- Oncology
- Contact Person Name
- Luis Gonzaga Paz-Ares
- Contact Person Email
- lpazaresr@seom.org
- Site Name
- Area Sanitaria Da Coruna E Cee
- Department Name
- Oncology
- Contact Person Name
- Maria Rosario Garcia Campelo
- Contact Person Email
- ma.rosario.garcia.campelo@sergas.es
- Site Name
- Fundacion Rioja Salud
- Department Name
- CIBIR
- Contact Person Name
- Maria De Miguel
- Contact Person Email
- maria.demiguel@startrioja.com
- Site Name
- Hospital Universitari Vall D Hebron
- Department Name
- Oncology
- Contact Person Name
- Laura Masfarre
- Contact Person Email
- lauramasfarre@vhio.net
- Site Name
- Institut Catala D'oncologia
- Department Name
- oncology
- Contact Person Name
- Enric Carcereny
- Contact Person Email
- ecarcereny@iconcologia.net
- Site Name
- Hospital Alvaro Cunqueiro
- Department Name
- oncology
- Contact Person Name
- Martin Emilio Lazaro Quintela
- Contact Person Email
- Martin.Emilio.Lazaro.Quintela@sergas.es
- Site Name
- Clinica Universidad De Navarra
- Department Name
- oncology
- Contact Person Name
- Miguel Fernandez de Sanmamed
- Contact Person Email
- msanmamed@unav.es
- Site Name
- Hospital Quironsalud Malaga
- Department Name
- oncology
- Contact Person Name
- Manuel Cobo
- Contact Person Email
- manuel.cobo.co@quironsalud.es
- Site Name
- Fundacion Instituto De Investigacion Sanitaria De Navarra
- Department Name
- Oncology
- Contact Person Name
- Hugo Arasanz
- Contact Person Email
- info.idisna@navarra.es
- Site Name
- Hospital Universitario Lucus Augusti
- Department Name
- Oncology
- Contact Person Name
- Sergio Vazquez
- Contact Person Email
- sergio.vazquez.estevez@sergas.es
Netherlands
- Earliest CTIS Part Ii Submission Date
- 10-03-2026
- Latest Decision Or Authorization Date
- 13-04-2026
- Processing Time Days
- 34
- Number Of Sites
- 1
- Number Of Participants
- 15
Sites
- Site Name
- Leids Universitair Medisch Centrum (LUMC)
- Department Name
- Pulmonary Diseases
- Contact Person Name
- Egbert Frederik Smit
- Contact Person Email
- e.f.smit@lumc.nl
Poland
- Earliest CTIS Part Ii Submission Date
- 27-03-2026
- Latest Decision Or Authorization Date
- 13-04-2026
- Processing Time Days
- 17
- Number Of Sites
- 6
- Number Of Participants
- 15
Sites
- Site Name
- Mazowieckie Centrum Leczenia Chorob Pluc I Gruzlicy
- Department Name
- Oddział III Chorób Płuc
- Contact Person Name
- Aleksandra Szczęsna
- Contact Person Email
- aszczesna@otwock-szpital.pl
- Site Name
- Uniwersyteckie Centrum Kliniczne
- Department Name
- Ośrodek Badań Klinicznych Wczesnych Faz
- Contact Person Name
- Hanna Liberek
- Contact Person Email
- hliberek@uck.gda.pl
- Site Name
- Centrum Medyczne Damiana Holding Sp. z o.o.
- Department Name
- Dom Lekarski - Ambulatorium Struga
- Contact Person Name
- Bartosz Dąbek
- Contact Person Email
- bdabek@gmail.com
- Site Name
- I Przychodnia Lekarska Komed Roman Karaszewski
- Department Name
- Przychodnia lekarska „Komed”
- Contact Person Name
- Bogusława Karaszewska
- Contact Person Email
- komed.badania@gmail.com
- Site Name
- Uniwersytecki Szpital Kliniczny W Poznaniu
- Department Name
- Oddział Chemioterapii
- Contact Person Name
- Rodryg Ramlau
- Contact Person Email
- rramlau@gmail.com
- Site Name
- Narodowy Instytut Onkologii Im. Marii Sklodowskiej-Curie Panstwowy Instytut Badawczy
- Department Name
- Oddział Zachowawczy Kliniki Nowotworów Płuca i Klatki Piersiowej
- Contact Person Name
- Dariusz Kowalski
- Contact Person Email
- dariusz.kowalski@pib-nio.pl
Sponsor
Primary sponsor
- Full Name
- Merus B.V.
- Organisation Type
- Pharmaceutical company
- Country Of Registered Address
- Netherlands
Investigational products
- Investigational Product Name
- petosemtamab (MCLA-158 / PB10651)
- Active Substance
- PETOSEMTAMAB
- Modality
- Other antibody
- Routes Of Administration
- IV INFUSION
- Route
- IV INFUSION
- Authorisation Status
- Not authorised / Investigational
- Maximum Dose
- max daily 1500 mg; max total 90000 mg
- Investigational Product Name
- KEYTRUDA 25 mg/mL concentrate for solution for infusion (pembrolizumab)
- Active Substance
- PEMBROLIZUMAB
- Modality
- Monoclonal antibody
- Routes Of Administration
- IV INFUSION
- Route
- IV INFUSION
- Authorisation Status
- Marketing authorisation (authorized product) - EU marketing authorisation present
- Maximum Dose
- max daily 400 mg; max total 9000 mg
- Combination Treatment
- Yes
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