Study of Taxane-Platinum followed by a maintenance with avelumab and cetuximab in First Line Recurrent or Metastatic Squamous Cell Carcinoma of the Head and Neck.

2023-510559-41-00 Protocol GORTEC 2024-01 Therapeutic exploratory (Phase II) Temporarily halted

Start 2 Jan 2025 · Status Temporarily halted · 1 EU/EEA countries · 25 sites · Protocol GORTEC 2024-01

Overview

Sponsor-declared trial summary

Phase Therapeutic exploratory (Phase II)
Status Temporarily halted
Participants planned 73
Countries 1
Sites 25

Recurrent or Metastatic Squamous Cell Carcinoma of the Head and Neck

To estimate the efficacy in terms of overall survival.

Key facts

Sponsor
Groupe Oncologie Radiotherapie Tete Cou
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04]
Trial duration
2 Jan 2025 → ongoing
Decision date (initial)
2024-11-12
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
No

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy, Safety

To estimate the efficacy in terms of overall survival.

Secondary objectives 2

  1. To estimate the efficacy in terms of Progression Free Survival (PFS).
  2. To assess the safety of maintenance avelumab-cetuximab after PCC regimen

Conditions and MedDRA coding

Recurrent or Metastatic Squamous Cell Carcinoma of the Head and Neck

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 10

  1. Adult men and women ≥ 18 years and < 75 years.
  2. Histologically confirmed recurrent and/or metastatic SCCHN (oral cavity, pharynx, larynx), not amenable to local therapy with curative intent (surgery or radiation therapy with or without chemotherapy); squamous cell carcinoma of unknown primary if HPV positive.
  3. Detection of PD-L1 protein expression in formalin-fixed, paraffin-embedded (FFPE) SCCHN tissue samples determined by Combined Positive Score (CPS) ≥1 using local IHC assay.
  4. Patients with Eastern Cooperative Oncology Group (ECOG) performance status ≤1.
  5. Patients without contra indication to PCC (either with cisplatin or carboplatin), to paclitaxel, cetuximab and to immunotherapy (avelumab).
  6. Documentation of p16 status as surrogate of human papillomavirus (HPV) status of tumor for SCC of the oropharynx.
  7. Measurable disease by CT or MRI per RECIST 1.1 criteria.
  8. In case of radiotherapy given without systemic treatment, prior curative radiation therapy must have been completed at least 4 weeks before PCC administration and/or prior palliative radiotherapy must have been completed at least 2 weeks before PCC administration.
  9. Screening laboratory values must meet the following criteria (using NCI-CTCAE v5) and should be obtained within 14 days prior to eligibility check: a. WBC > 2000/μL b. Polynuclear neutrophils >1.5 x 109/L c. Platelets > 100 x 109/L d. Hemoglobin > 9.0 g/dL e. ALAT/ASAT< 3.0 x ULN in the absence of liver metastases or < 5x ULN in the presence of liver metastases f. Bilirubin < 1.5 x ULN (except Gilbert Syndrome: < 3.0 mg/dL) g. Creatinine clearance > 60 mL/min (measured or calculated by preferably Cockcroft and Gault formula) for cisplatin administration and creatinine clearance ≥ 40 mL/min (measured or calculated by preferably Cockcroft and Gault formula) for carboplatin administration.
  10. Calcium levels must be normalized and maintained within normal limits for study entry. Medical management of calcium levels is permitted. Note: Normal calcium levels may be based on ionized calcium or adjusted for albumin.

Exclusion criteria 8

  1. Prior systemic chemotherapy for the head and neck carcinoma, except if given as part of a multimodal treatment for locally advanced disease which was completed more than 6 months prior to study entry.
  2. Histologically confirmed recurrent or metastatic carcinomas of the nasopharynx, squamous cell carcinoma of unknown HPV negative primary, or salivary gland or non-squamous histologies (e.g., mucosal melanoma) are not allowed.
  3. Any serious or uncontrolled medical disorder that, in the opinion of the investigator, may increase the risk associated with study participation or study drug administration, impair the ability of the subject to receive protocol therapy, or interfere with the interpretation of study results.
  4. Prior malignancy active within the previous 3 years except for head and neck cancers and locally curable cancers that have been apparently cured, such as basal or squamous cell skin cancer, superficial bladder cancer, or carcinoma in situ of the prostate, cervix, or breast.
  5. Subjects with active, known or suspected autoimmune disease. Subjects with stabilized type I diabetes mellitus under treatment, residual hypothyroidism due to autoimmune condition only requiring hormone replacement, psoriasis not requiring systemic treatment, or conditions not expected to recur in the absence of an external trigger are permitted to enroll.
  6. Subjects with a condition requiring systemic chronic administration of corticosteroids (> 10 mg daily prednisone equivalents) or other immunosuppressive medications within 14 days of eligibility check. Inhaled or topical steroids and adrenal replacement doses > 10 mg daily prednisone equivalents are permitted in the absence of active autoimmune disease.
  7. Patients having received prior therapy with anti-PD1, anti-PD-L1(or any other antibody or drug specifically targeting T-cell co-stimulation or checkpoint pathways).
  8. Prior anti-EGFR treatment received less than 6 months before eligibility check.

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Overall survival (OS) defined as the time between inclusion and death from any cause or the last follow-up contact for patients who are alive.

Secondary endpoints 2

  1. Progression free survival (PFS) defined as the time between inclusion and first progression according to RECIST 1.1.
  2. Incidence and severity of adverse events and serious adverse events during maintenance by the combination of cetuximab and avelumab and until 3 months after the last administration of maintenance (or until the start of a second line treatment if it starts before 3 months) as graded by the NCI Common Terminology Criteria of Adverse Events (NCI-CTCAE) v 5.0.

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 2

Bavencio 20 mg/mL concentrate for solution for infusion

PRD5432093 · Product

Active substance
Avelumab
Substance synonyms
MSB0010718C, Recombinant human monoclonal IgG1 antibody against programmed death ligand-1, MSB 0010718C
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INFUSION
Max daily dose
10 mg/kg milligram(s)/kilogram
Max total dose
860 mg/kg milligram(s)/kilogram
Max treatment duration
43 Month(s)
Authorisation status
Authorised
ATC code
L01FF04 — -
Marketing authorisation
EU/1/17/1214/001
MA holder
MERCK EUROPE B.V.
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
Yes
Modification description
Avelumab is used for another therapeutic indication

Erbitux 5 mg/mL solution for infusion

PRD327539 · Product

Active substance
Cetuximab
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INFUSION
Max daily dose
250 mg/m2 milligram(s)/sq. meter
Max total dose
43000 mg/m2 milligram(s)/sq. meter
Max treatment duration
43 Month(s)
Authorisation status
Authorised
ATC code
L01FE01 — -
Marketing authorisation
EU/1/04/281/003
MA holder
MERCK EUROPE B.V.
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Auxiliary 4

Carboplatin Accord Healthcare 10 mg/ml, solution à diluer pour de perfusion

PRD2005397 · Product

Active substance
Carboplatin
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INFUSION
Max daily dose
750 mg milligram(s)
Max total dose
3000 mg milligram(s)
Max treatment duration
84 Day(s)
Authorisation status
Authorised
ATC code
L01XA02 — CARBOPLATIN
Marketing authorisation
BE 421811
MA holder
ACCORD HEALTHCARE B.V.
MA country
Belgium
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Cisplatin 1 mg/ml concentrate for solution for Infusion

PRD11279891 · Product

Active substance
Cisplatin
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INFUSION
Max daily dose
75 mg/m2 milligram(s)/sq. meter
Max total dose
300 mg/m2 milligram(s)/sq. meter
Max treatment duration
84 Day(s)
Authorisation status
Authorised
ATC code
L01XA01 — CISPLATIN
Marketing authorisation
PL 49445/0179
MA holder
AMAROX LIMITED
MA country
XI
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Erbitux 5 mg/mL solution for infusion

PRD327543 · Product

Active substance
Cetuximab
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INFUSION
Max daily dose
400 mg/m2 milligram(s)/sq. meter
Max total dose
3400 mg/m2 milligram(s)/sq. meter
Max treatment duration
84 Day(s)
Authorisation status
Authorised
ATC code
L01FE01 — -
Marketing authorisation
EU/1/04/281/005
MA holder
MERCK EUROPE B.V.
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Paclitaxel Accord Healthcare 6 mg/ml solution à diluer pour perfusion

PRD11127635 · Product

Active substance
Paclitaxel
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
SOLUTION FOR INFUSION
Max daily dose
80 mg/m2 milligram(s)/sq. meter
Max total dose
960 mg/m2 milligram(s)/sq. meter
Max treatment duration
84 Day(s)
Authorisation status
Authorised
ATC code
L01CD01 — PACLITAXEL
Marketing authorisation
2024020033
MA holder
ACCORD HEALTHCARE B.V.
MA country
Luxembourg
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Groupe Oncologie Radiotherapie Tete Cou

Sponsor organisation
Groupe Oncologie Radiotherapie Tete Cou
Address
4 B Rue Emile Zola
City
Tours
Postcode
37000
Country
France

Scientific contact point

Organisation
Groupe Oncologie Radiotherapie Tete Cou
Contact name
Dr Caroline EVEN

Public contact point

Organisation
Groupe Oncologie Radiotherapie Tete Cou
Contact name
Adeline PECHERY

Locations

1 EU/EEA country · 25 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Temporarily halted 73 25
Rest of world 0

Investigational sites

France

25 sites · Temporarily halted
Centre Hospitalier Regional De Marseille
Medical Oncology, 80 Rue Brochier, 13005, Marseille
Centre Hospitalier Saint Nazaire
Medical Oncoloy, 11 Boulevard Georges Charpak, Bp 414, Saint Nazaire Cedex
Clinique Victor Hugo
Oncoloy-Radiotherapy, Centre De Cancerologie De La Sarthe, 64 Rue De Degre, Le Mans
Centre Regional Lutte Contre Le Cancer
Medical Oncology, Batiment Icans, 17 Rue Albert Calmette, Strasbourg
Institut De Cancerologie De L Ouest
Medical Oncology, Boulevard Jacques Monod, 44805, Saint-Herblain Cedex
Centr Georges Francois Leclerc
Medical oncology, 1 Rue Professeur Marion, 21000, Dijon
Institut Gustave Roussy
Medical Oncology, 114 Rue Edouard Vaillant, 94800, Villejuif
Institut De Cancerologie De Lorraine
Medical Oncology, 6 Avenue De Bourgogne, Cs 30519, Vandoeuvre Les Nancy Cedex
Centre Hospitalier Regional Et Universitaire De Brest
Medical oncology, 2 Avenue Marechal Foch, 29200, Brest
Centre Marie Curie ARRAS
Oncology Radiotherapy, 1 Place de la Préfecture, 62000, ARRAS
Centre Hospitalier Universitaire Grenoble Alpes
Medical Oncology, Boulevard De La Chantourne, Cs 10217, Grenoble Cedex 9
Institut Sainte Catherine
Oncology Radiotherapy, 250 Chemin De Baigne Pieds, 84000, Avignon
Centre Guillaume Le Conquérant
Oncology-Radiotherapy, 61 Rue Denfert Rochereau, 76600, LE HAVRE
Oncopole Claudius Regaud
Medical oncology, 1 Avenue Irene Joliot Curie, 31059, Toulouse Cedex 9
Centre Antoine Lacassagne
Medical oncology, 33 Avenue De Valombrose, 06189, Nice Cedex 2
Centre Henri Becquerel
Medical oncology, Rue D Amiens, 76038, Rouen Cedex
Centre Hospitalier Departemental Vendee
Onco-hematology, Boulevard Stephane Moreau, 85925, La Roche Sur Yon Cedex 9
Centre Oscar Lambret
Medical Oncology, 3 Rue Frederic Combemale, 59000, Lille
Centre Hospitalier Universitaire Amiens Picardie
Medical Oncology, 1 Place Victor Pauchet, 80080, Amiens
Institut Regional Du Cancer De Montpellier
Medical Oncology, 208 Avenue Des Apothicaires, 34298, Montpellier Cedex 5
Centre Leon Berard
Medical Oncolgy, 28 Rue Laennec, 69008, Lyon
Centre Hospitalier Universitaire De Nimes
Medical oncology, Place Du Professeur Robert Debre, 30029, Nimes Cedex 9
Assistance Publique Hopitaux De Paris
Medical Oncology, 43 Boulevard De L Hopital, 75013, Paris
Institut De Cancerologie De L Ouest
Medical Oncology, 15 Rue Andre Boquel, 49100, Angers
University Hospital Of Clermont-Ferrand
Medical Oncology, 58 Rue Montalembert, 63000, Clermont-Ferrand

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
France 2025-01-02 2025-01-16 2025-05-27

Oversight and notifications

Regulatory notifications under CTR Articles 38, 52, 53, 54 and 77

Temporary halts 1 · Art. 38 CTR

Temporary halt TH-84401

Halt date
2025-05-27
Member states concerned
France
Publication date
2025-05-28
Reason
Sponsor decision, Safety related (clinical or pre-clinical results)
Explanation
To minimize patient risk and prevent recurrence of septic shock associated with febrile neutropenia
Follow-up measures
Description of the Measure Taken: Temporary Suspension of Enrollment
• To prioritize patient safety and allow for the implementation of targeted risk mitigation strategies, the Sponsor has enacted an immediate temporary suspension of new patient screening and enrollment in study protocol GORTEC 2023-510559-41-00 as of 27-MAY-2025.
Note: This suspension applies only to new screening and enrollment. Patients currently enrolled will continue treatment per protocol, with the enhanced safety measures now in place.
• Flag as a signal under evaluation in the Clinical Trial Information System (CTIS)
• A Dear Investigator Letter (DIL) highlighting will be distributed after the safety meeting on 27-05-2025:
o Risk of GI toxicity preceding febrile neutropenia
o Warning signs (e.g., vomiting, diarrhea, fever before neutropenia)
Benefit-risk balance changed
Yes
Treatment stopped
No

Urgent safety measures 1 · Art. 54 CTR

Urgent safety measure US-77155

Event date
2025-03-31
Submission date
2025-03-31
In response to
SUSAR
Member states affected
France
Event description
A patient in the TATIANA study, receiving a combination of cisplatin, docetaxel, and cetuximab, developed Grade 4 neutropenia despite receiving Pegfilgrastim 24 hours after chemotherapy. In addition to Grade 3 diarrhea and Grade 2 vomiting, the patient’s condition worsened, progressing to Grade 4 febrile neutropenia one week later. This rapidly escalated to septic shock, requiring intensive care unit (ICU) admission. Unfortunately, the patient passed away due to febrile neutropenia complicated by septic shock. This incident raises concerns regarding the effectiveness of current risk mitigation strategies, particularly the use of Pegfilgrastim as a preventive measure.
Measures taken
The following points justify the immediate implementation of the urgent safety measures (USM):
• Serious and life-threatening nature of the event: The development of septic shock despite standard prophylaxis represents an unexpectedly severe complication that requires urgent action to protect patient safety.
• Potential risk to other patients: The severity of this adverse event suggests that other participants in the study could be at risk of similar or more severe neutropenia-related complications, necessitating a comprehensive reassessment of current safety measures.
• Insufficient current risk minimization strategies: The failure of Pegfilgrastim to prevent Grade 4 neutropenia, and its progression to septic shock, indicates a need to evaluate alternative prophylactic strategies or adjustments to improve patient safety and mitigate risks.
• Regulatory and ethical obligations: In accordance with Directive 2001/20/EC (EU) and national regulations, the sponsor has a duty to implement immediate corrective actions when unforeseen, serious risks to trial participants emerge.

The description of the measures taken is mentioned in the communication sent to the investigators.

Unexpected events 1 · Art. 53 CTR

Note: SUSARs are reported via EudraVigilance, not CTIS — events shown here are CTIS-public notifications only.

Unexpected event UE-84398

Event date
2025-05-22
Date aware
2025-05-22
Submission date
2025-05-28
Member states affected
France
Clinical procedures
To minimize patient risk and prevent recurrence of septic shock associated with febrile neutropenia, the following risk mitigation measures have been implemented across all participating sites:
1. G-CSF Adjustment
GCSF Adjustment: Pegfilgrastim and Filgrastim Administration
Pegfilgrastim Administration
If a patient receiving pegfilgrastim develops febrile neutropenia and/or an absolute neutrophil count (ANC) &lt;500/mm³, chemotherapy dose reductions for docetaxel and cisplatin (or carboplatin) will be applied in the subsequent cycle, as outlined in Section 4.3.3.2.1 in the protocol and the patient will be transitioned to daily filgrastim for GCSF support in future cycles.
Daily Filgrastim Administration
For patients switched from pegfilgrastim or those receiving filgrastim as primary prophylaxis:
• Initiation: Begin filgrastim at 5 µg/kg/day starting on Day 2 of each chemotherapy cycle.
• Duration: Continue until the ANC exceeds 1000/mm³ for two consecutive days.
• Minimum Treatment Period: Administer for at least seven days, or longer if needed, to ensure adequate neutrophil recovery.

2. Enhanced Monitoring of Neutropenia
3. Chemotherapy Dose Adjustment
• In patients who develop Grade 4 neutropenia:
o Docetaxel and cisplatin doses are reduced by 20% in subsequent cycles.
o If carboplatin is used, its AUC is reduced from 5 to 4.
4. Patient Education and Emergency Instructions: Patients are now routinely educated on early signs of infection and the urgency of seeking care.
Event description
Serious Unexpected Safety Concern: Septic Shock associated with Febrile Neutropenia in Patients Receiving the TPEx Regimen (Docetaxel, Cisplatin/Carboplatin, Cetuximab).
A concerning cluster of fatal septic shock cases has been identified among participants enrolled in an ongoing clinical trial investigating the TPEx regimen, which includes cetuximab, cisplatin (or carboplatin), and docetaxel. These events were associated with febrile neutropenia and in both reported cases, were also preceded by episodes of vomiting and diarrhea. This pattern highlights the importance of early recognition and management of gastrointestinal symptoms, which may signal the onset of severe infectious complications in this patient population.

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 8 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol_FR 2023-510559-41-00_Public 3.1
Protocol (for publication) D4_Patient facing documents_patient card 2.0
Recruitment arrangements (for publication) K1_Recruitment arrangements 1
Subject information and informed consent form (for publication) L1_SIS and ICF adults_public 3.0
Subject information and informed consent form (for publication) L1_SIS and ICF adults_public_Addendum 2.0
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC Erbitux 1
Synopsis of the protocol (for publication) D1_Protocol synopsis_ENG 2023-510559-41-00 3.1
Synopsis of the protocol (for publication) D1_Protocol synopsis_FR 2023-510559-41-00 3.1

Application history

4 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2024-07-25 France Acceptable with conditions
2024-11-12
2024-11-12
2 SUBSTANTIAL MODIFICATION SM-1 2024-11-14 France Acceptable with conditions 2024-12-04
3 SUBSTANTIAL MODIFICATION SM-2 2025-04-03 France Acceptable
2025-05-23
2025-05-23
4 SUBSTANTIAL MODIFICATION SM-3 2025-10-27 France Acceptable
2026-02-13
2026-02-18