Overview
Sponsor-declared trial summary
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
- To estimate the efficacy in terms of Progression Free Survival (PFS).
- 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
- Adult men and women ≥ 18 years and < 75 years.
- 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.
- 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.
- Patients with Eastern Cooperative Oncology Group (ECOG) performance status ≤1.
- Patients without contra indication to PCC (either with cisplatin or carboplatin), to paclitaxel, cetuximab and to immunotherapy (avelumab).
- Documentation of p16 status as surrogate of human papillomavirus (HPV) status of tumor for SCC of the oropharynx.
- Measurable disease by CT or MRI per RECIST 1.1 criteria.
- 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.
- 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.
- 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
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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).
- Prior anti-EGFR treatment received less than 6 months before eligibility check.
Endpoints
Primary and secondary outcome measures (English text)
Primary endpoints 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
- Progression free survival (PFS) defined as the time between inclusion and first progression according to RECIST 1.1.
- 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
| Country | MS status | Planned subjects | Sites |
|---|---|---|---|
| France | Temporarily halted | 73 | 25 |
| Rest of world | — | 0 | — |
Investigational sites
Country notifications
Trial-start, recruitment-start, end and early-termination notifications submitted per Member State
| Country | Trial start | Trial end | Recruitment start | Recruitment 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) <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.
| Type | Title | Version |
|---|---|---|
| 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
| # | Type | Code | Submitted | Reference MS | Conclusion | Decision 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 |