PD-1 Inhibitor Therapy Versus Radiotherapy in pCR Patients With Locally Advanced HNSCC After Neoadjuvant Immunochemotherapy

NCT ID: NCT05980715

Last Updated: 2023-08-08

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: PHASE3
• Total Enrollment: 324 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-01-01
• Study Completion Date: 2030-12-31

Brief Summary

In patients with locally advanced head and neck squamous cell carcinoma undergoing standard surgical treatment after neoadjuvant immunochemotherapy, can PD-1 inhibitor therapy be used instead of adjuvant radiotherapy for both primary and lymph node pathology? To provide further evidence-based medical evidence for the late precision treatment of HNSCC patients after neoadjuvant immunochemotherapy. Avoid the side effects caused by excessive radiotherapy, especially avoid the occurrence of second primary cancer, radiation osteonecrosis and other diseases.

1. Main study endpoint:

A randomized controlled, non-inferiority, multicentre Phase III trial was conducted to investigate the difference in 5-year overall survival (OS) between experimental group (Group B) and control group (group A) in patients undergoing standard surgical treatment after neoadjuvant immunochemotherapy for locally advanced HNSCC, with both primary and lymph node pathology revealed by pCR. At the same time, adverse events and safety were evaluated according to NCI-CTCAE 5.0 criteria and RTOG later radiotherapy damage evaluation criteria.

Safety indicators focused on late radiotherapy toxicity and the incidence of grade 3 and 4 adverse reactions in NCI-CTC AE 5.0 and RTOG. The differences in the incidence of grade 3 and 4 adverse events were compared between the experimental group and the control group.

2. Secondary study endpoint:

The differences in 2-year disease-free survival (DFS), regional relapse-free survival (RRFS), distant metastasis free survival (DMFS), safety and adverse events were compared.

Safety evaluation NCI-CTC AE 5.0 standard was used to evaluate the acute safety index of radiotherapy, and RTOG late-stage damage evaluation standard was used to evaluate the late-stage safety index of radiotherapy.

4) Exploratory goals The influence of prognostic laboratory indicators, clinical risk factors were analyzed. To explore the factors that influence the efficacy of radiotherapy after pCR immunotherapy.

Conditions

HNSCC; Radiotherapy; PD-1

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Arm 1（PD-1）

Radiotherapy free treatment: the experimental group took PD-1 inhibitor maintenance regimen.

Group Type: EXPERIMENTAL

PD-1inhibitor

Intervention Type: DRUG

The PD-1 monoclonal antibody was the same as the neoadjuvant therapy before surgery, and the postoperative level was maintained at Q3\*6.

Arm 2（radiotherapy）

conventional radiotherapy (chemoradiotherapy) regimen, and received comprehensive treatment according to the guidelines (radiotherapy or platinum-based concurrent chemoradiotherapy as stipulated in the guidelines).

Group Type: ACTIVE_COMPARATOR

concurrent chemoradiotherapy

Intervention Type: RADIATION

According to the guidelines, concurrent chemoradiotherapy is required, and carboplatin (50mg/m2) plus concurrent radiotherapy or cisplatin (30mg/m2) plus concurrent radiotherapy is optional.

Interventions

PD-1inhibitor

The PD-1 monoclonal antibody was the same as the neoadjuvant therapy before surgery, and the postoperative level was maintained at Q3\*6.

Intervention Type: DRUG

concurrent chemoradiotherapy

According to the guidelines, concurrent chemoradiotherapy is required, and carboplatin (50mg/m2) plus concurrent radiotherapy or cisplatin (30mg/m2) plus concurrent radiotherapy is optional.

Intervention Type: RADIATION

Eligibility Criteria

Inclusion Criteria

• In this study, patients with locally advanced head and neck squamous cell carcinoma (AJCC 8th) who underwent standard surgical treatment after neoadjuvant immunochemotherapy and showed pCR in both primary lesions and lymph node pathology were selected. Locally advanced squamous cell carcinoma of head and neck includes: i) T3, N0, M0; 2) T1-T3, N1-N2, M0; 3) T4a, N0-2, M0.
• No history of other malignant tumors
• Ages 18-65
• Normal baseline inspection:

1. The absolute value of neutrophil granulocyte (ANC) ≥1.5x109/L in the last 14 days without the use of granulocyte colony stimulating factor;

2. Platelets ≥100×109/L without blood transfusion in the past 14 days;

3. Hemoglobin &gt without blood transfusion or use of erythropoietin within the last 14 days; 9g/dL;

4. Total bilirubin ≤1.5× upper limit of normal value (ULN);

5. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤2.5×ULN (ALT or AST ≤5×ULN in patients with liver metastasis);

6. Serum creatinine ≤1.5×ULN and creatinine clearance (calculated by Cockcroft-Gault formula) ≥60 ml/min;

7. Good coagulation function, defined as International Standardized ratio (INR) or prothrombin time (PT) ≤1.5 times ULN;

8. Normal thyroid function, defined as thyroid stimulating hormone (TSH) within the normal range. Subjects whose baseline TSH is outside the normal range can be enrolled if total T3 (or FT3) and FT4 are within the normal range;

9. The myocardial enzyme profile was within the normal range (if the researchers comprehensively judged that the simple laboratory abnormality was not clinically significant, it was also allowed to be included);

10. For female subjects of childbearing age, a urine or serum pregnancy test should be tested negative within 3 days prior to receiving the first study drug administration (day 1 of Cycle 1). If the urine pregnancy test results cannot be confirmed negative, a blood pregnancy test is requested. Women of non-reproductive age were defined as at least one year after menopause or having undergone surgical sterilization or hysterectomy;

11. If there is a risk of conception, all subjects (male or female) shall use contraception with an annual failure rate of less than 1% for the entire duration of treatment up to 120 days after the last study drug administration (or 180 days after the last chemotherapeutic drug administration).

5 Sign informed consent

Exclusion Criteria

• 1 HNSCC is not the initial diagnosis of other malignant tumors or neoadjuvant therapy.
• Prior to treatment An active autoimmune immune disease requiring systemic therapy (e.g. the use of disease-modifying drugs, glucocorticoids, or immunosuppressants) has occurred in the last 2 years. Alternative therapies (such as thyroxine, insulin, or physiologic glucocorticoids for adrenal or pituitary insufficiency) are not considered systemic therapy;
• Known allogeneic organ transplantation (except corneal transplantation) or allogeneic hematopoietic stem cell transplantation;
• Known history of human immunodeficiency virus (HIV) infection (i.e. HIV 1/2 antibody positive);
• Untreated active hepatitis B (defined as HBsAg positive and HBV-DNA copy number detected greater than the upper limit of normal value in the laboratory of the study center);

Note: Hepatitis B subjects who meet the following criteria can also be enrolled:

1) HBV viral load &lt before initial administration; At 1000 copies /ml (200 IU/ml), subjects should receive anti-HBV therapy to avoid viral reactivation throughout the study treatment period 2) For subjects with anti-HBC (+), HBsAg (-), anti-HBS (-), and HBV viral load (-), prophylactic anti-HBV therapy is not required, but close monitoring of viral reactivation is required

• Active HCV infected subjects (HCV antibody positive and HCV-RNA level above the lower limit);
• Pregnant or lactating women;
• The presence of any serious or uncontrolled systemic disease, such as:

1. The resting electrocardiogram (ECG) presents significant and severely uncontrollable abnormalities in rhythm, conduction or morphology, such as complete left bundle branch block, Ⅱ degree or above heart block, ventricular arrhythmia or atrial fibrillation;

2. Unstable angina pectoris, congestive heart failure, and NYHA grade ≥ 2 chronic heart failure;

3. Any arterial thrombosis, embolism or ischemia, such as myocardial infarction, unstable angina pectoris, cerebrovascular accident or transient ischemic attack, occurred within 6 months before treatment;

4. Poor blood pressure control (systolic > 140 mmHg, diastolic > 90 mmHg);

5. A history of non-infectious pneumonia requiring glucocorticoid therapy or clinically active interstitial lung disease within 1 year prior to initial administration;

6. Active pulmonary tuberculosis;

7. There is an active or uncontrolled infection that requires systemic treatment;

8. Clinically active diverticulitis, abdominal abscess, gastrointestinal obstruction;

9. Liver diseases such as cirrhosis, decompensated liver disease, acute or chronic active hepatitis;

10. Poor diabetes control (fasting blood glucose (FBG) > 10mmol/L);

11. Urine routine indicated urine protein ≥++, and confirmed 24 hours urine protein quantity > 1.0 g;

12. Patients with mental disorders and unable to cooperate with treatment;

• Medical history or evidence of disease that may interfere with test results, prevent subjects from fully participating in the study, abnormal values of treatment or laboratory tests, or other conditions that the investigator considers unsuitable for enrollment. The investigator considers other potential risks unsuitable for participation in the study.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 65 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

First People's Hospital of Foshan

OTHER

Sponsor Role: collaborator

First Affiliated Hospital, Sun Yat-Sen University

OTHER

Sponsor Role: collaborator

Affiliated Cancer Hospital & Institute of Guangzhou Medical University

OTHER

Sponsor Role: collaborator

Affiliated Cancer Hospital of Shantou University Medical College

OTHER

Sponsor Role: collaborator

Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

Sun yat-sen memorial hospital

Guangzhou, Guangdong, China

Site Status: RECRUITING

Countries

China

Central Contacts

Jinsong Li, MD

Role: CONTACT

caobleat@hotmail.com

008618583879908

Haotian Cao, MD

Role: CONTACT

Facility Contacts

Haotian Cao, MD

Role: primary

caobleat@hotmail.com

008618583879908

Jinsong Li, MD

Role: backup

Other Identifiers

SYSKY-2023-463-02

Identifier Type: -

Identifier Source: org_study_id