This study is a randomized, active-controlled, open-label clinical trial for participants with newly diagnosed Stage III-IVb, resectable, locoregionally advanced head and neck squamous cell carcinoma (LA-HNSCC). The study consists of two experimental arms and one control arm. Participants in Experimental Arm A will receive two cycles of Toripalimab, albumin-bound paclitaxel, carboplatin, and cetuximab prior to surgery. Participants in Experimental Arm B will receive two cycles of Toripalimab, albumin-bound paclitaxel, and carboplatin before surgical intervention. Following the surgical procedure, individuals in both Experimental Arm A and B will continue to receive 15 cycles of Toripalimab. The Control Arm will undergo the current standard treatment without preoperative drug intervention. Postoperatively, participants will be administered postoperative radiotherapy or chemoradiotherapy based on their recurrence risk. The primary study hypotheses are that the treatments in the Experimental Arms will improve the 2-year event-free survival (EFS) rates compared to the standard control treatment.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
355
Specified dose on specified days
Specified dose on specified days
Specified dose on specified days
Specified dose on specified days
Specified dose on specified days
Low risk participants administered 2 Gray/day in 30 fractions. Administered using intensity modulated radiation therapy.
High risk participants administered 2 Gray/day in 33 fractions. Administered using intensity modulated radiation therapy.
Participants with gross residual disease administered 2 Gray/day in 35 fractions. Administered using intensity modulated radiation therapy.
ICT vs Control: Two-Year Event-free Survival (EFS) rate
Two-Year Event-free Survival (EFS) rate defined as the proportion of participants who have not experienced any EFS events by the 2-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Two-Year EFS rate in the ICT arm will be compared to the control arm as a pre-specified primary analysis of the Intent-To-Treat (ITT) population.
Time frame: Up to ~72 months
IC vs Control: Two-Year EFS rate
Two-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 2-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Two-Year EFS rate in the IC arm will be compared to the control arm as a pre-specified primary analysis of the Intent-To-Treat (ITT) population.
Time frame: Up to ~72 months
ICT vs Control: Overall Survival (OS)
OS is the time from randomization to death due to any cause. Per protocol, OS in the ICT arm will be compared to the control arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~96 months
IC vs Control: OS
OS is the time from randomization to death due to any cause. Per protocol, OS in the IC arm will be compared to the control arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~96 months
ICT vs IC: Major Pathological Response (MPR)
The percentage of participants with a major pathological response (MPR) as assessed by the Central Pathologist at the time of definitive surgery. MPR is defined as ≤10% invasive squamous cell carcinoma within the resected primary tumor specimen and all the sampled regional lymph nodes. Per protocol, MPR in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~40 months
ICT vs IC: Pathological Complete Response (PCR)
he percentage of participants with a pathological complete response (PCR) as assessed by the central pathologist at the time of definitive surgery. PCR is defined as having no residual invasive squamous cell carcinoma within the resected primary tumor specimen and all sampled regional lymph nodes. Per protocol, PCR in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~40 months
ICT vs IC: Objective Response Rate (ORR)
According to Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1), Objective Response Rate (ORR) assesses the proportion of subjects with complete response (CR) and partial response (PR). Per RECIST v1.1 criteria for target lesions and assessed by MRI or CT: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), \>=30% decrease in the sum of the longest diameter of target lesions; Per protocol, ORR in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~40 months
ICT vs Control: Three-Year EFS rate
Three-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 3-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Three-Year EFS rate in the ICT arm will be compared to the control arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~84 months
ICT vs Control: Five-Year EFS rate
Five-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 5-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Five-Year EFS rate in the ICT arm will be compared to the control arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~96 months
IC vs Control: Three-Year EFS rate
Three-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 3-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Three-Year EFS rate in the IC arm will be compared to the control arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~84 months
IC vs Control: Five-Year EFS rate
Five-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 5-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Five-Year EFS rate in the IC arm will be compared to the control arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~96 months
ICT vs IC: Two-Year EFS rate
Two-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 2-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Two-Year EFS rate in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~72 months
ICT vs IC: Three-Year EFS rate
Three-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 3-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Three-Year EFS rate in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~84 months
ICT vs IC: Five-Year EFS rate
Five-Year EFS rate defined as the proportion of participants who have not experienced any EFS events by the 5-year mark from randomization, out of all participants in the arm. EFS events: any progression of disease precluding surgery, progression or recurrence disease after surgery, death due to any cause, or occurrence of a second primary tumor. Participants who don't undergo surgery for reason other than progression will be considered to have an event at progression or death. EFS: The time from randomization, until the first documented occurrence of EFS event. Per protocol, Five-Year EFS rate in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~96 months
ICT vs IC vs Control: Locoregional recurrence-free survival (LRFS) rate
The Two-Year, Three-Year, and Five-Year LRFS rates refer to the proportions of participants who have not experienced locoregional recurrence and are still alive at 2, 3, and 5 years post-randomization, respectively, out of all participants in the arm. Per protocol, the LRFS rate will be compared between the ICT, IC, and Control arms.
Time frame: Up to ~96 months
ICT vs IC vs Control: Distant Disease-free Survival (DDFS) rate
Two-Year, Three-Year, and Five-Year DDFS rates refer to the proportion of patients who have not experienced distant metastasis and are still alive at 2, 3, and 5 years post-randomization, out of all participants in the arm. Per protocol, the DDFS rate will be compared between the ICT, IC, and Control arms.
Time frame: Up to ~96 months
ICT vs IC vs Control: Change From Baseline in Global Health Status/Quality of Life Scale (GHS/QoL)
Change from baseline in the combined score of global health status (GHS)/quality of life (QoL) using the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Core Questionnaire (EORTC QLQ-C30) items 29 and 30. Participant responses to questions regarding overall health/QoL will be scored on a 7-point scale (1=Very poor to 7=Excellent) with a higher score indicating better overall health status.
Time frame: Up to ~96 months
ICT vs IC vs Control: Change From Baseline in Global Health Status/Physical Functioning Scales
Change from baseline in the combined score of physical functioning scale using the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Core Questionnaire (EORTC QLQ-C30) items 1 through 5. Participant responses to questions regarding their physical functioning will be scored on a 4-point scale (1=Not at All to 4=Very Much) with a higher score indicating worse physical functioning.
Time frame: Up to ~96 months
ICT vs IC vs Control: Change from Baseline in Swallowing, Speech, and Pain Symptoms
Change from baseline in the combined score of swallowing, speech, and pain symptoms using the European Organization for Research and Treatment of Cancer Head and Neck Questionnaire (EORTC QLQ-H\&N35) items 31-38, 46, and 53-54. Participant responses to questions regarding problems with swallowing, speech and pain in the mouth will be scored on a 4-point scale (1=Not at all to 4=Very much) with a higher score indicating more problems.
Time frame: Up to ~96 months
ICT vs IC vs Control: Percentage of Participants Experiencing An Adverse Event (AEs)
Percentage of participants experiencing any sign, symptom, disease, or worsening of preexisting condition temporally associated with study therapy and irrespective of causality to study therapy.
Time frame: Up to ~96 months
ICT vs IC: Percentage of Participants Discontinuing Study Drug Due to AEs
Percentage of participants discontinuing study drug due to an AE.
Time frame: Up to ~48 months
ICT vs IC: OS
OS is the time from randomization to death due to any cause. Per protocol, OS in the ICT arm will be compared to the IC arm as a pre-specified secondary analysis of the ITT population.
Time frame: Up to ~96 months
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