Study of Zanzalintinib (XL092) + Pembrolizumab vs Pembrolizumab in Subjects With PD-L1 Positive Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma

NCT ID: NCT06082167

Last Updated: 2025-08-17

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

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE2/PHASE3

Total Enrollment

600 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-06-07

Study Completion Date

2029-03-31

Brief Summary

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This is a multicenter, randomized, double-blind, controlled Phase 2/3 trial of zanzalintinib in combination with pembrolizumab versus zanzalintinib-matched placebo in combination with pembrolizumab in subjects with programmed death-ligand 1 (PD-L1) positive recurrent or metastatic head and neck squamous cell carcinoma (R/M HNSCC) incurable by local therapies who have not received prior systemic therapy for recurrent or metastatic disease.

Detailed Description

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Conditions

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Head and Neck Squamous Cell Carcinoma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Zanzalintinib + Pembrolizumab

Subjects with R/M HNSCC will receive zanzalintinib + pembrolizumab

Group Type EXPERIMENTAL

Zanzalintinib

Intervention Type DRUG

Specified doses on specified days

Pembrolizumab

Intervention Type BIOLOGICAL

Specified doses on specified days

Zanzalintinib-Matched Placebo + Pembrolizumab

Subjects with R/M HNSCC will receive zanzalintinib-matched placebo + pembrolizumab

Group Type PLACEBO_COMPARATOR

Zanzalintinib-matched Placebo

Intervention Type DRUG

Specified doses on specified days

Pembrolizumab

Intervention Type BIOLOGICAL

Specified doses on specified days

Interventions

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Zanzalintinib

Specified doses on specified days

Intervention Type DRUG

Zanzalintinib-matched Placebo

Specified doses on specified days

Intervention Type DRUG

Pembrolizumab

Specified doses on specified days

Intervention Type BIOLOGICAL

Other Intervention Names

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XL092 XL092-matched Placebo KEYTRUDA®

Eligibility Criteria

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Inclusion Criteria

* Histologically or cytologically-confirmed R/M HNSCC that is considered incurable by local therapy.

* Should not have had prior systemic therapy administered in the recurrent or metastatic setting. Systemic therapy which was completed more than 6 months prior to randomization if given as part of multimodal treatment for locally advanced disease is allowed.
* The eligible primary tumor locations are the oropharynx, oral cavity, hypopharynx, and larynx.
* PD-L1 expression level Combined Positive Score (CPS) ≥ 1.
* Participants with oropharyngeal cancer must have human papillomavirus (HPV) status from tumor tissue.
* Measurable disease according to RECIST 1.1 as determined by the Investigator.
* Tumor samples (archival or fresh tumor biopsy) are required. If archival tissue is unavailable, must provide fresh tumor tissue biopsy prior to randomization.
* Recovery to baseline or ≤ Grade 1 severity (CTCAE v5) from adverse events (AEs) related to any prior treatments, unless AE(s) are clinically nonsignificant and/or stable on supportive therapy.
* Age 18 years (or the legal age of consent in your country, if higher than 18) or older on the day of consent.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
* Adequate organ and marrow function.

Exclusion Criteria

* Nasopharynx, salivary gland or occult primary site (regardless of p16 status).
* Has disease that is suitable for local therapy administered with curative intent.
* Has received prior therapy with zanzalintinib, any anti-PD-1, anti-PD-L1, or anti-PD-L2 agent or with an agent directed to another stimulatory or co-inhibitory T-cell receptor (for example, cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), OX-40, CD137).
* Life expectancy \< 3 months.
* Had progressive disease within 6 months of completion of curatively intended systemic treatment for locoregionally advanced HNSCC.
* Radiation therapy for bone metastases within 2 weeks, any other radiation therapy within 4 weeks prior to randomization.
* Known brain metastases or cranial epidural disease unless adequately treated with radiotherapy and/or surgery (including radiosurgery) and stable for at least 4 weeks prior to randomization.
* Positive hepatitis B surface antigen (HBsAg) test.
* Positive hepatitis C virus (HCV) antibody test.
* Major surgery (eg, GI surgery, removal or biopsy of brain metastasis) within 8 weeks prior to randomization. Complete wound healing from major or minor surgery must have occurred at least prior to randomization.
* Corrected QT interval calculated by the Fridericia formula (QTcF) \> 480 ms per electrocardiogram (ECG) within 28 days before randomization.
* Pregnant or lactating females.
* Administration of a live, attenuated vaccine within 30 days before randomization.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Merck Sharp & Dohme LLC

INDUSTRY

Sponsor Role collaborator

Exelixis

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Exelixis Clinical Site #2

Fullerton, California, United States

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Exelixis Clinical Site #1

Orange City, Florida, United States

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Exelixis Clinical Site #163

Tampa, Florida, United States

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Exelixis Clinical Site #123

Athens, Georgia, United States

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Exelixis Clinical Site #82

Atlanta, Georgia, United States

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Exelixis Clinical Site #19

Chicago, Illinois, United States

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Exelixis Clinical Site #62

Des Moines, Iowa, United States

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Exelixis Clinical Site #100

Iowa City, Iowa, United States

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Exelixis Clinical Site #4

St Louis, Missouri, United States

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Exelixis Clinical Site #148

Lebanon, New Hampshire, United States

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Exelixis Clinical Site #158

Camden, New Jersey, United States

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Exelixis Clinical Site #3

Shirley, New York, United States

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Exelixis Clinical Site #95

Durham, North Carolina, United States

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Exelixis Clinical Site #117

Wilson, North Carolina, United States

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Exelixis Clinical Site #43

Roanoke, Virginia, United States

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Exelixis Clinical Site #73

Rosario, Santa Fe Province, Argentina

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Exelixis Clinical Site #91

Buenos Aires, , Argentina

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Exelixis Clinical Site # 47

Ciudad Autonoma de Buenos Aire, , Argentina

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Exelixis Clinical Site #53

Ciudad Autonoma de Buenos Aire, , Argentina

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Exelixis Clinical Site #93

Córdoba, , Argentina

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Exelixis Clinical Site #64

Córdoba, , Argentina

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Exelixis Clinical Site #157

Pergamino, , Argentina

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Exelixis Clinical Site #92

Santa Fe, , Argentina

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Exelixis Clinical Site #57

Port Macquarie, New South Wales, Australia

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Exelixis Clinical Site # 46

Adelaide, , Australia

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Exelixis Clinical Site #154

Bedford Park, , Australia

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Exelixis Clinical Site #137

Camperdown, , Australia

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Exelixis Clinical Site #39

Murdoch, , Australia

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Exelixis Clinical Site #156

Linz, , Austria

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Exelixis Clinical Site #42

Salzburg, , Austria

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Exelixis Clinical Site #166

Vienna, , Austria

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Exelixis Clinical Site #22

Brussels, , Belgium

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Exelixis Clinical Site #106

Charleroi, , Belgium

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Exelixis Clinical Site #14

Libramont, , Belgium

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Exelixis Clinical Site #37

Sint-Niklaas, , Belgium

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Exelixis Clinical Site #68

Passo Fundo, Rio Grande do Sul, Brazil

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Exelixis Clinical Site #90

Porto Alegre, Rio Grande do Sul, Brazil

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Exelixis Clinical Site #110

Jaú, São Paulo, Brazil

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Exelixis Clinical Site #65

Santo André, São Paulo, Brazil

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Exelixis Clinical Site #83

São José do Rio Preto, São Paulo, Brazil

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Exelixis Clinical Site #116

Barretos, , Brazil

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Exelixis Clinical Site #75

Curitiba, , Brazil

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Exelixis Clinical Site #101

Curitiba, , Brazil

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Exelixis Clinical Site #97

Porto Alegre, , Brazil

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Exelixis Clinical Site #102

Recife, , Brazil

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Exelixis Clinical Site #87

Rio de Janeiro, , Brazil

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Exelixis Clinical Site #76

São Paulo, , Brazil

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Exelixis Clinical Site #77

São Paulo, , Brazil

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Exelixis Clinical Site #67

São Paulo, , Brazil

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Exelixis Clinical Site #98

São Paulo, , Brazil

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Exelixis Clinical Site #88

São Paulo, , Brazil

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Exelixis Clinical Site #25

Plovdiv, , Bulgaria

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Exelixis Clinical Site #94

Rousse, , Bulgaria

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Exelixis Clinical Site #15

Sofia, , Bulgaria

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Exelixis Clinical Site #11

Sofia, , Bulgaria

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Exelixis Clinical Site #54

Sofia, , Bulgaria

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Exelixis Clinical Site #33

Santiago, , Chile

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Exelixis Clinical Site #52

Santiago, , Chile

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Exelixis Clinical Site #38

Santiago, , Chile

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Exelixis Clinical Site #109

Santiago, , Chile

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Exelixis Clinical Site #50

Talca, , Chile

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Exelixis Clinical Site #51

Valdivia, , Chile

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Exelixis Clinical Site #40

Viña del Mar, , Chile

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Exelixis Clinical Site #96

Barranquilla, , Colombia

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Exelixis Clinical Site #152

Bogotá, , Colombia

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Exelixis Clinical Site #103

Floridablanca, , Colombia

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Exelixis Clinical Site #146

Pasto, , Colombia

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Exelixis Clinical Site #149

Pereira, , Colombia

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Exelixis Clinical Site #49

Nový Jičín, , Czechia

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Exelixis Clinical Site #58

Olomouc, , Czechia

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Exelixis Clinical Site #151

Prague, , Czechia

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Exelixis Clinical Site #34

Prague, , Czechia

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Exelixis Clinical Site #48

Prague, , Czechia

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Exelixis Clinical Site #36

Prague, , Czechia

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Exelixis Clinical Site #28

Marseille, Bouches-du-Rhône, France

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Exelixis Clinical Site #16

Bordeaux, Gironde, France

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Exelixis Clinical Site #44

Rennes, Ille Et Vilaine, France

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Exelixis Clinical Site #108

Saint Priest En Jarez, Pays de la Loire Region, France

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Exelixis Clinical Site #70

Lyon, Rhone, France

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Exelixis Clinical Site #107

Le Mans, Sarthe, France

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Exelixis Clinical Site #66

Villejuif, Val De Marne, France

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Exelixis Clinical Site #144

Dijon, , France

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Exelixis Clinical Site #141

Grenoble, , France

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Exelixis Clinical Site #140

Lille, , France

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Exelixis Clinical Site #26

Paris, , France

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Exelixis Clinical Site #112

Pierre-Bénite, , France

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Exelixis Clinical Site #105

Poitiers, , France

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Exelixis Clinical Site #167

Giessen, , Germany

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Exelixis Clinical Site #155

Athens, , Greece

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Exelixis Clinical Site #129

Athens, , Greece

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Exelixis Clinical Site #159

Larissa, , Greece

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Exelixis Clinical Site #120

Thessaloniki, , Greece

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Exelixis Clinical Site #150

Thessaloniki, , Greece

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Exelixis Clinical Site #128

Thessaloniki, , Greece

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Exelixis Clinical Site #125

Budapest, , Hungary

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Exelixis Clinical Site #99

Kecskemét, , Hungary

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Exelixis Clinical Site #131

Salgótarján, , Hungary

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Exelixis Clinical Site #147

Szekszárd, , Hungary

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Exelixis Clinical Site #132

Haifa, , Israel

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Exelixis Clinical Site #85

Haifa, , Israel

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Exelixis Clinical Site #74

Jerusalem, , Israel

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Exelixis Clinical Site #122

Ramat Gan, , Israel

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Exelixis Clinical Site #86

Tel Aviv, , Israel

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Exelixis Clinical Site #21

Candiolo, Torino, Italy

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Exelixis Clinical Site #35

Brescia, , Italy

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Exelixis Clinical Site #45

Catania, , Italy

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Exelixis Clinical Site #81

Milan, , Italy

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Exelixis Clinical Site #55

Milan, , Italy

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Exelixis Clinical Site #18

Napoli, , Italy

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Exelixis Clinical Site #78

Rome, , Italy

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Exelixis Clinical Site #124

Rozzano, , Italy

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Exelixis Clinical Site #10

Verona, , Italy

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Exelixis Clinical Site #61

Putrajaya, Kuala Lumpur, Malaysia

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Exelixis Clinical Site #60

Kuala Lumpur, , Malaysia

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Exelixis Clinical Site #72

Kuala Lumpur, , Malaysia

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Exelixis Clinical Site #114

Guadalajara, Jalisco, Mexico

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Exelixis Clinical Site #119

San Juan del Río, Querétaro, Mexico

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Exelixis Clinical Site #168

Guadalajara, , Mexico

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Exelixis Clinical Site #89

Piotrków, Trybunalski, Poland

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Exelixis Clinical Site #139

Gliwice, , Poland

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Exelixis Clinical Site #162

Torun, , Poland

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Exelixis Clinical Site #160

Bucharest, , Romania

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Exelixis Clinical Site #24

Cluj-Napoca, , Romania

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Exelixis Clinical Site #20

Craiova, , Romania

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Exelixis Clinical Site #104

Floreşti, , Romania

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Exelixis Clinical Site #127

Ploieşti, , Romania

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Exelixis Clinical Site #143

Timișoara, , Romania

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Exelixis Clinical Site #23

Košice, , Slovakia

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Exelixis Clinical Site #27

Trnava, , Slovakia

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Exelixis Clinical Site #121

Žilina, , Slovakia

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Exelixis Clinical Site #7

Busan, Gangwon-do, South Korea

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Exelixis Clinical Site #30

Suwon, Gyeonggi-do, South Korea

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Exelixis Clinical Site #17

Suwon, Gyeonggi-do, South Korea

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Exelixis Clinical Site #9

Yangsan, Gyeongsangnam-do, South Korea

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Exelixis Clinical Site #69

Jeonju, Jeollabuk-do, South Korea

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Exelixis Clinical Site #8

Jeonju, Jeollabuk-do, South Korea

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Exelixis Clinical Site #13

Busan, , South Korea

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Exelixis Clinical Site #5

Seoul, , South Korea

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Exelixis Clinical Site #63

Seoul, , South Korea

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Exelixis Clinical Site #12

Seoul, , South Korea

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Exelixis Clinical Site #6

Seoul, , South Korea

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Exelixis Clinical Site #29

Seoul, , South Korea

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Exelixis Clinical Site #130

A Coruña, , Spain

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Exelixis Clinical Site #115

Barcelona, , Spain

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Exelixis Clinical Site #113

Girona, , Spain

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Exelixis Clinical Site #134

Madrid, , Spain

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Exelixis Clinical Site #111

Madrid, , Spain

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Exelixis Clinical Site #32

Madrid, , Spain

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Exelixis Clinical Site #59

Madrid, , Spain

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Exelixis Clinical Site #31

Madrid, , Spain

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Exelixis Clinical Site #136

Pamplona, , Spain

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Exelixis Clinical Site #126

Seville, , Spain

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Exelixis Clinical Site #153

Valencia, , Spain

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Exelixis Clinical Site #41

Zaragoza, , Spain

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Exelixis Clinical Site #145

Kaohsiung City, , Taiwan

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Exelixis Clinical Site #164

Taichung, , Taiwan

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Exelixis Clinical Site #118

Taipei, , Taiwan

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Exelixis Clinical Site #142

Taipei, , Taiwan

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Exelixis Clinical Site #165

Taoyuan District, , Taiwan

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Exelixis Clinical Site #71

Bangkoknoi, Bangkok, Thailand

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Exelixis Clinical Site #79

Hat Yai, Changwat Songkhla, Thailand

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Exelixis Clinical Site #56

Chiang Mai, Chiang Mai, Thailand

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Exelixis Clinical Site #80

Bangkok, , Thailand

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Exelixis Clinical Site #135

London, England, United Kingdom

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Exelixis Clinical Site #84

Romford, Essex, United Kingdom

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Exelixis Clinical Site #138

Manchester, , United Kingdom

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Exelixis Clinical Site #133

Sutton, , United Kingdom

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Exelixis Clinical Site #161

Torquay, , United Kingdom

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Countries

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United States Argentina Australia Austria Belgium Brazil Bulgaria Chile Colombia Czechia France Germany Greece Hungary Israel Italy Malaysia Mexico Poland Romania Slovakia South Korea Spain Taiwan Thailand United Kingdom

References

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Saba NF, Harrington K, Licitra L, Machiels JP, He C, Jew T, Andrianov V, Haddad R. STELLAR-305: phase II/III study of zanzalintinib plus pembrolizumab versus pembrolizumab alone in patients with HNSCC. Future Oncol. 2025 May;21(11):1349-1356. doi: 10.1080/14796694.2025.2485015. Epub 2025 Apr 18.

Reference Type DERIVED
PMID: 40248950 (View on PubMed)

Other Identifiers

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EU CTR: 2023-506308-24-00

Identifier Type: OTHER

Identifier Source: secondary_id

KEYNOTE-G06

Identifier Type: OTHER

Identifier Source: secondary_id

MK-3475-G06

Identifier Type: OTHER

Identifier Source: secondary_id

XL092-305; KEYNOTE-G06

Identifier Type: -

Identifier Source: org_study_id

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