NCT05433116

Brief Summary

Open-label, two-arm, prospective multicenter phase II clinical trial to determine the efficacy and safety of combined pembrolizumab and lenvatinib compared to pembrolizumab alone as maintenance therapy after definitive radiochemotherapy of locally advanced head and neck squamous cell carcinoma (HNSCC).

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for phase_2

Timeline
8mo left

Started May 2023

Typical duration for phase_2

Geographic Reach
1 country

10 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress82%
May 2023Jan 2027

First Submitted

Initial submission to the registry

June 15, 2022

Completed
12 days until next milestone

First Posted

Study publicly available on registry

June 27, 2022

Completed
11 months until next milestone

Study Start

First participant enrolled

May 25, 2023

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2026

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2027

Expected
Last Updated

December 2, 2025

Status Verified

October 1, 2025

Enrollment Period

2.6 years

First QC Date

June 15, 2022

Last Update Submit

November 24, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Event-free survival (EFS) rate

    To study efficacy of pembrolizumab/lenvatinib maintenance therapy versus pembrolizumab alone after definitive RCT of locally advanced HNSCC to prolong the event-free survival (EFS) rate at 2 years.

    2 years

Secondary Outcomes (3)

  • Event-free survival (EFS) (continuous)

    2 years

  • Locoregional control

    Restaging 12-13 weeks after completion of radiotherapy; Follow-up every 24 weeks

  • Toxicity of Pembrolizumab/lenvatinib

    until safety follow-up (1 year treatment + 30 days)

Study Arms (2)

pembrolizumab + lenvatinib

OTHER

combined pembrolizumab (200mg q3w) and lenvatinib treatment (20mg once daily)

Drug: PembrolizumabDrug: Lenvatinib

pembrolizumab

OTHER

pembrolizumab (200mg q3w)

Drug: Pembrolizumab

Interventions

i.v., 200mg absolute, q3w, starting within 14 days after completion of radiochemotherapy

Also known as: Keytruda
pembrolizumabpembrolizumab + lenvatinib

20mg once daily orally, start concomitant to cycle 2 of pembrolizumab

Also known as: Lenvima
pembrolizumab + lenvatinib

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants are eligible to be included in the study only if all of the following criteria apply:
  • Male/female participants who are at least 18 years of age on the day of signing informed consent
  • Pathologically proven new diagnosis of squamous cell carcinoma (HNSCC) of the oral cavity, oropharynx, hypopharynx or supraglottic larynx stage III-IVB according to TMM 8th edition
  • PD-L1 combined positive score (CPS) ≥1 (in sample prior to radiochemotherapy) by central pathology review
  • Completed definitive radiochemotherapy up to at least 68Gy with at least 200mg/m² body surface area concomitant Cisplatin.
  • No progression during radiochemotherapy. Study screening CT has to be compared to radiochemotherapy baseline CT. (Study screening CT may be performed before the end of radiochemotherapy, whereas a minimum radiation dose of 50Gy has to be administered at the time point of the study screening CT.)
  • Male participants:
  • A male participant must agree to use a contraception as detailed in Appendix 3 of this protocol during the treatment period and for at least 120 days after the last dose of study treatment (pembrolizumab or lenvatinib, whichever is administered last) and refrain from donating sperm during this period. In addition, contraception has to be used for 180 days after the last dose of cisplatin.
  • Female participants:
  • A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies: a. Not a woman of childbearing potential (WOCBP) OR b. A WOCBP who agrees to follow the contraceptive guidance during the treatment period and for at least 120 days after the last dose of study treatment (pembrolizumab or lenvatinib, whichever is administered last). In addition, contraception has to be used for 180 days after the last dose of cisplatin.
  • The participant provides written informed consent for the trial.
  • Have measurable disease based on RECIST 1.1.
  • Have provided archival tumor tissue sample with sufficient tumor content. Formalin-fixed, paraffin embedded (FFPE) tissue blocks are preferred to slides.
  • Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. Evaluation of ECOG is to be performed within 7 days prior to the first dose of study intervention.
  • Have adequate organ function. Specimens must be collected within 10 days prior to the start of study intervention.

You may not qualify if:

  • Participants are excluded from the study if any of the following criteria apply:
  • Have radiographic evidence of major blood vessel invasion/infiltration or tumor demonstrates \>90-degree abutment or encasement of a major blood vessel.
  • Had prior radical surgery for the head and neck cancer under study or induction chemotherapy with more than one cycle prior to definitive radiochemotherapy. Patients with single cycle induction chemotherapy prior radiochemotherapy can be included.
  • WOCBP who have a positive urine or serum pregnancy test within 72 hours prior to. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.
  • Have received prior therapy with an 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 (eg, CTLA-4, OX-40, CD137).
  • Have received prior systemic anti-cancer therapy including investigational agents within 4 weeks prior to study drug administration (except from cisplatin concomitant to radiochemotherapy).
  • Have received a live vaccine or live-attenuated vaccine within 30 days prior to the first dose of study drug. Administration of killed vaccines is allowed.
  • Are currently participating in or have participated in a study of an investigational agent or have used an investigational device within 4 weeks prior to the first dose of study intervention.
  • Have a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy (in dosing exceeding 10 mg daily of prednisone equivalent) or any other form of immunosuppressive therapy within 7 days prior to the first dose of study drug.
  • Have a known additional malignancy that is progressing or have required active treatment within the past 3 years. Participants with basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ (eg, breast carcinoma, cervical cancer in situ) that have undergone potentially curative therapy are not excluded.
  • Have distant metastases.
  • Have severe hypersensitivity (≥Grade 3) to pembrolizumab, lenvatinib and/or any of their excipients.
  • Have active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs). Replacement therapy (eg., thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment and is allowed.
  • Have a history of (non-infectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease.
  • Have an active infection requiring systemic therapy.
  • +15 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (10)

University Hospital Ulm, Otolaryngology & Head and Neck Surgery

Ulm, Baden-Wurttemberg, 89070, Germany

Location

University Hospital Augsburg, Radiation Oncology

Augsburg, Bavaria, 86156, Germany

Location

University Hospital Erlangen, Radiation Oncology

Erlangen, Bavaria, 91054, Germany

Location

University Hospital Regensburg, Clinic and Polyclinic for Radiotherapy

Regensburg, Bavaria, 93053, Germany

Location

University Hospital Frankfurt/M, Center for Radiology

Frankfurt am Main, Hesse, 60590, Germany

Location

University Hospital Giessen; Ear, nose and throat clinic

Giessen, Hesse, 35392, Germany

Location

University Hospital Düsseldorf, Radiation Oncology

Düsseldorf, North Rhine-Westphalia, 40225, Germany

Location

Saarland University Medical Center and Saarland University Faculty of Medicine, Clinic for Radiotherapy and Radiooncology

Homburg, Saarland, 66421, Germany

Location

Hospital Chemnitz, Radiation Oncology

Chemnitz, Saxony, 09116, Germany

Location

Gemeinschaftspraxis Hämatologie-Onkologie

Dresden, Saxony, 01307, Germany

Location

MeSH Terms

Conditions

Squamous Cell Carcinoma of Head and Neck

Interventions

pembrolizumablenvatinib

Condition Hierarchy (Ancestors)

Carcinoma, Squamous CellCarcinomaNeoplasms, Glandular and EpithelialNeoplasms by Histologic TypeNeoplasmsHead and Neck NeoplasmsNeoplasms by Site

Study Officials

  • Markus Hecht, Prof.

    Saarland University Medical Center, Clinic for Radiotherapy and Radiooncology

    PRINCIPAL INVESTIGATOR
  • Antoniu-Oreste Gostian, Prof.

    University Hospital Straubing, Clinic for Otolaryngology, Head and Neck and Facial Plastic Surgery

    STUDY CHAIR
  • Henning Kahl, MD

    University Hospital Augsburg, Radiation Oncology

    STUDY CHAIR
  • Rainer Fietkau, Prof.

    University Hospital Erlangen, Radiation Oncology

    STUDY CHAIR
  • Udo Gaipl, Prof.

    University Hospital Erlangen, Radiation Oncology

    STUDY CHAIR
  • Markus Eckstein, MD

    University Hospital Erlangen, Pathology

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 15, 2022

First Posted

June 27, 2022

Study Start

May 25, 2023

Primary Completion

January 1, 2026

Study Completion (Estimated)

January 1, 2027

Last Updated

December 2, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations