Pembrolizumab in Combination With Low-dose PFas Neoadjuvant Treatment for Locally Advanced HNSCC

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18-85
SponsorZhejiang Provincial People's Hospital

About this trial

A phase Ⅱ open label multi-cencter clinical trail to evaluate the efficacy and safety of pembrolizumab combined with low-dose PF (cisplatin + 5-fluorouracil) in the neoadjuvant treatment of locally advanced head and neck squamous cell carcinoma

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age ≥ 18 years old, ≤ 85 years old

Histologically or cytologically proven squamous cell carcinoma of the head and neck; Patients diagnosed with head and neck squamous cell carcinoma with stage III and IV A without distant metastasis according to AJCC staging (8th editon), including squamous cell carcinoma of oropharyngeal (P16-), oral cavity, hypopharyngeal and larynx

Measurable primary lesions per RECIST 1.1 criteria

Treatment-naive patients without any previous disease-related therapy (except for diagnostic biopsies on primary lesions)

Disqualifiers

Multiple organs failure

HPV p16 positive oropharyngeal cancer

Patients with local advanced head and neck squamous cell carcinoma stage T4B and/or N3

Patients with distant metastasis

Trial design

Design model

Single group

Treatments tested in this trial

  • pembrolizumab+cisplatin + 5-FU

    Combination product

    ivgtt, pembrolizumab 200mg d1+cisplatin20 mg/m2 qd d1-d3 + 5-fluorouracil 3000mg/m2 last for 120hours, six circles. Subjects will undergo surgery after receiving neoadjuvant chemotherapy within 3 weeks, followed by adjuvant therapy and pembrolizumab alone maintenance treatment.

Treatment groups

80 Participants
are divided into 1 treatment group
Group A: Pembrolizumab+cisplatin + 5-fluorouracilExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Primary site CR rate after neoadjuvant therapy

Measure the primary site CR rate after neoadjuvant therapy

Time frame
Up to 6 months

Secondary outcomes

1

Incidence of adverse reactions during neoadjuvant therapy

Incidence of adverse reactions during neoadjuvant therapy

Time frame
up to 2 years
2

The stages of descent after neoadjuvant therapy

The stage of the tumor after neoadjuvant therapy according to the American Joint Committee on Cancer (AJCC) TNM staging system (8th edition) will be evaluated by treating physicians.

Time frame
up to 6 months
3

Primary site pCR rate after neoadjuvant therapy

Primary site pCR rate after neoadjuvant therapy

Time frame
Up to 6 months
4

EFS

EFS is defined as the time from the initial treatment date to the first documented event date, including disease progression, local or distant metastasis as assessed by image or biopsy, or death from any cause, whichever comes first.

Time frame
up to 2 years

Other outcomes

1

Exploratory Outcome2

Pembrolizumab in combination with low-dose PF (cisplatin + 5-fluorouracil) stratified by CPS PD-L1 status (CPS PD-L1\<1, CPS PD-L1\>1, and CPS PD-L1 not evaluable/uncertain) ) for the primary CR rate of stage 1 neoadjuvant therapy for locally advanced HNSCC

Time frame
Up to 6 months
2

Exploratory Outcome:biomarkers and single-cell sequencing

Immune cell flow analysis, blood MRD detection analysis, single-cell sequencing analysis before and after immune neoadjuvant therapy.

Time frame
up to 2 years

Sponsors and contacts

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