INBRX-106 in Combination With Pembrolizumab in First-line PD-L1 CPS≥20 HNSCC

NCT ID: NCT06295731

Last Updated: 2025-11-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE2/PHASE3

Total Enrollment

410 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-05-14

Study Completion Date

2029-05-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

This seamless phase 2/3 randomized controlled study will evaluate the efficacy and safety of the hexavalent OX40 agonist antibody INBRX-106 combined with the anti-PD-1 antibody pembrolizumab versus pembrolizumab (+ placebo in phase 3) as first-line treatment for patients with locally advanced recurrent or metastatic head and neck squamous cell carcinoma (R/M HSNSCC) incurable by local therapies, expressing PD-L1 with a combined proportion score (CPS) ≥20.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Head and Neck Squamous Cell Carcinoma (HNSCC)

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators
Phase 2: open label; Phase 3: double-blind

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

INBRX-106 plus pembrolizumab

Participants will receive INBRX-106 plus pembrolizumab, both given by intravenous (IV) infusion every 3 weeks (QW3)

Group Type EXPERIMENTAL

INBRX-106

Intervention Type DRUG

INBRX-106 by intravenous (IV) infusion, given every 3 weeks (QW3)

Pembrolizumab

Intervention Type DRUG

Pembrolizumab 200 mg by intravenous (IV) infusion, given every 3 weeks (QW3)

pembrolizumab monotherapy (+ placebo in phase 3 part)

Participants will receive pembrolizumab (plus placebo in Phase 3), given by intravenous (IV) infusion every 3 weeks (QW3)

Group Type ACTIVE_COMPARATOR

INBRX-106

Intervention Type DRUG

INBRX-106 by intravenous (IV) infusion, given every 3 weeks (QW3)

Pembrolizumab

Intervention Type DRUG

Pembrolizumab 200 mg by intravenous (IV) infusion, given every 3 weeks (QW3)

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

INBRX-106

INBRX-106 by intravenous (IV) infusion, given every 3 weeks (QW3)

Intervention Type DRUG

Pembrolizumab

Pembrolizumab 200 mg by intravenous (IV) infusion, given every 3 weeks (QW3)

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

Hexavalent OX40 agonist antibody Keytruda

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Has histologically or cytologically confirmed diagnosis of metastatic, recurrent head and neck squamous cell carcinoma (HNSCC) that is considered incurable by local therapies.
* Has tumor PD-L1 expression of CPS ≥20. Tumor tissue must be provided for PD-L1 biomarker analysis.
* Has human papilloma virus (HPV) testing results for oropharyngeal cancer by p16 immunohistochemistry (IHC) testing.
* Has measurable disease per RECIST 1.1 guidelines.
* Has the primary tumor location of the oral cavity, oropharynx, hypopharynx, or larynx.
* Has an Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
* Female patients of childbearing potential must have a negative highly sensitive pregnancy test within 72 hours prior to randomization and must not be breastfeeding.
* Male and female patients of childbearing potential must be willing to completely abstain from heterosexual sex or agree to use a highly effective method of contraception.

Exclusion Criteria

* Has primary tumor site (any histology) of nasopharynx or salivary glands or occult primary site.
* Has received prior systemic therapy (eg, prior chemo-, immune-, or biologic therapy) for locally advanced unresectable or metastatic HNSCC.

* Prior systemic therapy completed \>6 months prior to signing informed consent is allowed if given as part of multimodal treatment for locoregionally advanced disease with curative intent, and no PD/recurrence occurred within 6 months of its completion. Prior systemic immunotherapy in the locoregionally advanced disease with curative intent, including but not limited to anti-PD-(L)1 agents, is allowed if PD/recurrence occurred ≥12 months after its completion.
* Has clinically active central nervous system metastases and/or carcinomatous meningitis.
* Has a diagnosis of immunodeficiency or is receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the first dose of study treatment.
* Rapidly progressing disease or with features that may confer a high risk of tumor-associated hemorrhage or uncontrolled tumor pain.
* Current or history of immune-related disease that required systemic treatment in past 2 years, except for replacement therapy.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Inhibrx Biosciences, Inc

INDUSTRY

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Clinical Lead

Role: STUDY_DIRECTOR

Inhibrx Biosciences, Inc

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

City of Hope Medical Center

Duarte, California, United States

Site Status RECRUITING

Los Angeles Cancer Network (LACN)

Los Angeles, California, United States

Site Status RECRUITING

Sutter Health

Sacramento, California, United States

Site Status RECRUITING

UC Davis

Sacramento, California, United States

Site Status RECRUITING

Medical Oncology Associates of San Diego

San Diego, California, United States

Site Status RECRUITING

Sarcoma Oncology Center

Santa Monica, California, United States

Site Status RECRUITING

ChristianaCare Health Services

Newark, Delaware, United States

Site Status RECRUITING

University of Florida UF Health Cancer Center

Gainesville, Florida, United States

Site Status RECRUITING

The Oncology Institute of Hope & Innovation

Miami, Florida, United States

Site Status RECRUITING

Mid Florida Hematology and Oncology Center

Orange City, Florida, United States

Site Status RECRUITING

Cleveland Clinic Florida, The Maroone Cancer Center

Weston, Florida, United States

Site Status RECRUITING

University of Illinois Cancer Center

Chicago, Illinois, United States

Site Status RECRUITING

Norton Cancer Institute

Louisville, Kentucky, United States

Site Status RECRUITING

Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status RECRUITING

Karmanos Cancer Institute

Detroit, Michigan, United States

Site Status RECRUITING

Washington University St. Louis

St Louis, Missouri, United States

Site Status RECRUITING

Intermountain Health, St. Vincent Regional Hospital, Cancer Centers of Montana

Billings, Montana, United States

Site Status RECRUITING

Oncology Hematology West, PC dba Nebraska Cancer Specialists

Omaha, Nebraska, United States

Site Status RECRUITING

Comprehensive Cancer Centers of Nevada

Las Vegas, Nevada, United States

Site Status RECRUITING

Christus St. Vincent Regional Cancer Center

Santa Fe, New Mexico, United States

Site Status RECRUITING

UNC Lineberger Comprehensive Cancer Center

Chapel Hill, North Carolina, United States

Site Status RECRUITING

Oklahoma University Stephenson Cancer Center

Oklahoma City, Oklahoma, United States

Site Status RECRUITING

Oregon Health & Science University

Portland, Oregon, United States

Site Status RECRUITING

UPMC Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status RECRUITING

CHRISTUS Spohn Cancer Center

Corpus Christi, Texas, United States

Site Status RECRUITING

VCU Massey Comprehensive Cancer Center

Richmond, Virginia, United States

Site Status RECRUITING

Royal Adelaide Hospital

Adelaide, South Australia, Australia

Site Status RECRUITING

Antwerp University Hospital

Edegem, Antwerp, Belgium

Site Status RECRUITING

University Hospital Brussels

Jette, , Belgium

Site Status RECRUITING

Chu Ucl Namur Site De Sainte-Elisabeth

Namur, , Belgium

Site Status RECRUITING

Vitaz

Sint-Niklaas, , Belgium

Site Status RECRUITING

Multiprofile Hospital for Active Treatment - "Uni Hospital" Ltd, Medical Oncology Dept

Panagyurishte, , Bulgaria

Site Status RECRUITING

Complex Oncological Center Plovdiv EOOD Dept of Med Oncology and Oncological Diseases in Hematology

Plovdiv, , Bulgaria

Site Status RECRUITING

Uni Multiprofile Hospital for Active Treatment Tsaritsa Yoanna - ISUL EAD Clinic of Medical Oncology

Sofia, , Bulgaria

Site Status RECRUITING

Multiprofile Hospital for Active Treatment Sveta Sofia, Department of Medical Oncology

Sofia, , Bulgaria

Site Status RECRUITING

CH Annecy Genevois

Annecy, Epagny Metz Tessy, France

Site Status RECRUITING

UNEOS-Hopital R.SCHUMAN

Metz, Moselle, France

Site Status RECRUITING

Centre Jean Perrin

Clermont-Ferrand, , France

Site Status RECRUITING

Cenre Oscar Lambret

Lille, , France

Site Status RECRUITING

Centre Leon Berard

Lyon, , France

Site Status RECRUITING

Istituto Nazionale Tumori IRCCS - Fondazione Giovanni Pascale (National Cancer Institute)

Napoli, Naples, Italy

Site Status RECRUITING

Istituto Nazionale Tumori IRCCS - (National Cancer Institute)

Milan, , Italy

Site Status RECRUITING

European Institute of Oncology

Milan, , Italy

Site Status RECRUITING

Fondazione IRCCS Policlinico San Matteo

Pavia, , Italy

Site Status RECRUITING

Hospital Universiti Sains Malaysia

Kubang Kerian, Kelantan, Malaysia

Site Status RECRUITING

Hospital Canselor Tuanku Muhriz (HCTM) UKM

Cheras, Kuala Lumpur, Malaysia

Site Status RECRUITING

Sarawak General Hospital

Kuching, Sarawak, Malaysia

Site Status RECRUITING

Thomson Hospital Kota Damansara

Petaling Jaya, Selangor, Malaysia

Site Status RECRUITING

Beacon Hospital

Petaling Jaya, , Malaysia

Site Status RECRUITING

Institut Kanser Negara

Putrajaya, , Malaysia

Site Status RECRUITING

Narodowy Instytut Onkologii im. Marii Skłodowskiej-Curie Państwowy Instytut Badawczy Oddział w Gliwicach

Gliwice, , Poland

Site Status RECRUITING

Przychodnia Lekarska KOMED

Konin, , Poland

Site Status RECRUITING

Provita Profamilia

Piotrkow Trybunalski, , Poland

Site Status RECRUITING

Sc Oncolab Srl

Craiova, Dolj, Romania

Site Status RECRUITING

Sc Centrul de Oncologie Sf Nectarie Srl

Craiova, Dolj, Romania

Site Status RECRUITING

ARENSIA Clinic Oncology Institute Bucharest

Bucharest, , Romania

Site Status RECRUITING

Arensia Exploratory Medicine S.R.L in collaboration with "Prof. Dr. Ion Chiricuta" Oncology Institute

Cluj-Napoca, Cluj, , Romania

Site Status RECRUITING

The Catholic University of Korea, Eunpyeong St. Mary's Hospital

Seoul, Eunpyeong-gu, South Korea

Site Status RECRUITING

Pusan National University Yangsan Hospital

Yangsan, Gyeongsangnam-do, South Korea

Site Status RECRUITING

Gachon University Gil Medical Center of Korea

Seoul, Incheon, South Korea

Site Status RECRUITING

Keimyung University Dongsan Hospital of Korea

Daegu, , South Korea

Site Status RECRUITING

Korea Cancer Center Hospital

Seoul, , South Korea

Site Status RECRUITING

Korea University Anam Hospital

Seoul, , South Korea

Site Status RECRUITING

Severance Hospital, Yonsei University Health System

Seoul, , South Korea

Site Status RECRUITING

Korea University Guro Hospital

Seoul, , South Korea

Site Status RECRUITING

Hospital Clinico Universitario de Santiago de Compostela

Santiago, A Coruña, Spain

Site Status RECRUITING

Intituto Catalán de Oncología

Barcelona, Catalonia, Spain

Site Status RECRUITING

IOB / Institute of Oncology, Hospital Quirónsalud Barcelona

Barcelona, Gracia, Spain

Site Status RECRUITING

Hospital Universitario de Navarra

Pamplona, Navarre, Spain

Site Status RECRUITING

Hospital Universitario Gregorio Marañón

Madrid, Retiro, Spain

Site Status RECRUITING

Complexo Hospitalario Universitario A Coruña

A Coruña, , Spain

Site Status RECRUITING

Hospital Clinic de Barcelona

Barcelona, , Spain

Site Status RECRUITING

MD Anderson Cancer Centre

Madrid, , Spain

Site Status RECRUITING

Hospital Universitario y Politécnico La Fe

Valencia, , Spain

Site Status RECRUITING

Taipei Veterans General Hospital

Taipei, Beitou District / R.o.c., Taiwan

Site Status RECRUITING

Taichung Veterans General Hospital

Taichung, China, Taiwan

Site Status RECRUITING

Changhua Christian Medical Foundation Changhua Christian Hospital

Changhua, , Taiwan

Site Status RECRUITING

Kaohsiung Medical University Chung-Ho Memorial Hospital

Kaohsiung City, , Taiwan

Site Status RECRUITING

National Cheng Kung University Hospital

Tainan, , Taiwan

Site Status RECRUITING

National Taiwan University Hospital

Taipei, , Taiwan

Site Status RECRUITING

The Royal Marsden NHS Foundation Trust, Chelsea

Chelsea, London, United Kingdom

Site Status RECRUITING

Mount Vernon Cancer Centre

Northwood, Middlesex, United Kingdom

Site Status RECRUITING

The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Northern Centre for Cancer Care, Freeman Hospital

Newcastle upon Tyne, Northumbria, United Kingdom

Site Status RECRUITING

The Royal Marsden NHS Foundation Trust, Sutton

Sutton, Surrey, United Kingdom

Site Status RECRUITING

NHS Grampian / Aberdeen Royal Infirmary

Aberdeen, , United Kingdom

Site Status RECRUITING

Addenbrooke's Hospital

Cambridge, , United Kingdom

Site Status RECRUITING

The Christie NHS Foundation Trust

Manchester, , United Kingdom

Site Status RECRUITING

Norwich and Norfolk University Hospital

Norwich, , United Kingdom

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States Australia Belgium Bulgaria France Italy Malaysia Poland Romania South Korea Spain Taiwan United Kingdom

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Study Director - Inhibrx

Role: CONTACT

858-500-7833

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Role: primary

800-826-4673

Role: primary

213-977-1214

Behl, MD

Role: primary

916-887-4678

Erica Huerta

Role: primary

916-734-5324

Caroline Nguyen

Role: backup

916-734-3416

Amanda Somo

Role: primary

858-637-7860

Role: primary

310-499-8851

Jennifer Knotts

Role: primary

302-623-4889

Alesa Flewellen

Role: primary

Role: primary

562-693-4477

Role: primary

866-977-6322

Filomaine Nealey

Role: primary

954-487-2259

Annette Kinsella

Role: primary

312-996-6275

Role: primary

502-629-3569

Role: primary

617-726-8054

Role: primary

313-576-9811

Role: primary

314-747-8092

Role: primary

406-238-6963

Role: primary

402-334-4773

Ann Lovelace

Role: primary

Lindsay Kondo

Role: backup

7029523406

Role: primary

505-913-8900

Jonathan Jackson

Role: primary

919-966-4432

Helan Mathai

Role: backup

919-966-4432

Shae Pfenning, RN

Role: primary

405-271-8001 ext. 18001

Beatrice Benjamin

Role: primary

503-418-5766

Chad Smith

Role: backup

503-494-0283

Jennifer Ruth

Role: primary

412-623-4522

Justin Siegel

Role: backup

412-623-4522

Role: primary

361-861-9721

Elisabeth Holmes

Role: primary

804-628-2622

Teresa Tin

Role: primary

+61466131383

Eline Vertigem

Role: primary

Lisa Jacobus

Role: primary

Dominique Crasson

Role: primary

Jenas Stevenheydens

Role: primary

Milena Kardaleva

Role: primary

Rositsa Natova

Role: primary

Monika Spirova

Role: primary

Marina Ivanova

Role: primary

Fanny Boche

Role: primary

Celine Quantin

Role: primary

Emilie Villeneuve

Role: primary

Fabienne Dumont

Role: primary

Maryem VAN DER MAESEN

Role: primary

Fabiana Raffaella Rampetta

Role: primary

Mariateresa Tangari

Role: primary

Francesca Lombardi

Role: primary

Francesca Pasi

Role: primary

Elina Husni Husni Tan

Role: primary

+601264769888

Nur Afiqah Unlong

Role: primary

Cindy Gumal

Role: primary

Shin Yee Wong

Role: primary

Yun Xin Toh

Role: primary

Xian Lerk Yong

Role: primary

Daria Pepel, MD

Role: primary

Beata Dopierała

Role: primary

Emilia Moruś-Urbańska

Role: primary

Ana Maria Leu

Role: primary

Augustin Gheorghe

Role: primary

Natalia Cojocaru

Role: primary

Diana Viman

Role: primary

+40 740 606 856

Jin-Sun Kim

Role: primary

Lee Mi Eon

Role: primary

Seonmi An

Role: primary

SongLee Han

Role: primary

Gyeongja Go

Role: primary

Hyunwoo Chae

Role: primary

Hwayoung Lee

Role: primary

Boram Shin

Role: primary

Samuel Gonzalez

Role: primary

Samia Guerche

Role: primary

Natalie Valazquez

Role: primary

(+34) 93 238 16 61

Laura Garcia

Role: backup

(+34) 635 98 92 68

Virginia Arrazubi

Role: primary

+34848425233

Cristina Gausinet

Role: primary

Fátima Nieto Pombo

Role: primary

Daniel Plana Sagrera

Role: primary

(+34) 687727892 ext. 383419

Fernando Lopez Criado

Role: primary

0034 917878600x2883

Cora Palanca

Role: primary

Ling-Ling Chiu

Role: primary

I-Chen Tsai

Role: primary

Yi-Fang Chou

Role: primary

Nina Yu

Role: primary

Tsai-Han Cheng

Role: primary

Yuan-Jing Hong

Role: primary

Sehar Mehmood

Role: primary

Meera Patel

Role: primary

Victoria Rowley

Role: primary

Amy Scott

Role: primary

Heather Cheyne

Role: primary

+44 (0)1223 554410

Lindsay Piper

Role: primary

Sarah-Ellen Smith

Role: primary

Lisa Hudig

Role: primary

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

EU CT

Identifier Type: OTHER

Identifier Source: secondary_id

INBRX106-01-201

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Iparomlimab and Tuvonralimab in HNSCC
NCT07090317 RECRUITING PHASE2