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NCT04649476: NEOPBOSCC

Neoadjuvant PD-1 Blockade in Resectable Oral Squamous Cell Carcinoma

Completed Phase 2 Results posted Last updated 10 January 2025
What this trial tests

Phase 2 trial testing Camrelizumab in Oral Squamous Cell Carcinoma in 68 participants. Completed in 10 August 2024.

Timeline
22 March 2021
Primary endpoint
10 August 2022
10 August 2024

Quick facts

Lead sponsorHospital of Stomatology, Wuhan University
PhasePhase 2
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingnone
Primary purposetreatment
Enrollment68
Start date22 March 2021
Primary completion10 August 2022
Estimated completion10 August 2024
Sites1 location across China

Drugs / interventions tested

Conditions studied

Sponsor

Hospital of Stomatology, Wuhan University

Who can join

Adults 18 to 70, any sex, with Oral Squamous Cell Carcinoma. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Pathologic Response. Primary · 8 weeks.

Pathologic response of resected tumors and lymph nodes to neoadjuvant PD-1 blockade alone or neoadjuvant PD-1 blockade plus TPF induction chemotherapy. Hematoxylin and eosin (H\&E)-stained slides of entire tumor and all sampled lymph nodes were scanned and assessed by two independent pathologists. The entire tumor bed and all sampled lymph nodes were examined histologically in patients who had pathological complete response (pCR), which was defined as the absence of viable tumor in all slides. MPR was defined as the presence of 10% or less viable residual tumor in the resected tumor specimens.

GroupValue95% CI
Neoadjuvant PD-1 Blockade Alone25
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy2
Neoadjuvant PD-1 Blockade Alone4
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy4
Neoadjuvant PD-1 Blockade Alone5
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy26
Neoadjuvant PD-1 Blockade Alone0
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy2
Radiographic Response. Secondary · 8 weeks.

Radiographic response of tumors and lymph nodes to neoadjuvant PD-1 blockade alone or neoadjuvant PD-1 blockade plus TPF induction chemotherapy were evaluated by enhanced computed tomography examinations and defined by Response Evaluation Criteria In Solid Tumors (RECIST) version 1.1. Complete Response (CR) was defined as disappearance of all target lesions. Partial Response (PR) was defined as \>=30% decrease in the sum of the longest diameter of target lesions. Stable disease (SD) was defined as \<20% increase and \<30% decrease in the sum of the longest diameter of target lesions. Progressi

GroupValue95% CI
Neoadjuvant PD-1 Blockade Alone0
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy0
Neoadjuvant PD-1 Blockade Alone3
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy16
Neoadjuvant PD-1 Blockade Alone20
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy14
Neoadjuvant PD-1 Blockade Alone11
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy1

Adverse events — posted to ClinicalTrials.gov

Time frame: The specific period of time over which adverse events were collected is initiated from the begining of neoadjuvant treatment and end up with the adjuvant radiotherapy after surgery, up to 4 months. Reporting threshold: 5%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Neoadjuvant PD-1 Blockade Alone
Serious: 2/34 (6%)
Deaths: 0/34
Neoadjuvant PD-1 Blockade Plus TPF Induction Chemotherapy
Serious: 11/34 (32%)
Deaths: 1/34

Serious adverse events (6 terms)

ReactionSystemNeoadjuvant PD-1 Blockade …Neoadjuvant PD-1 Blockade …
Neutrophil count decreasedBlood and lymphatic system disorders
White blood cell decreasedBlood and lymphatic system disorders
Lymphocyte count decreasedBlood and lymphatic system disorders
Alanine aminotransferase increasedHepatobiliary disorders
Creatine kinase increasedCardiac disorders
Creatinine increasedRenal and urinary disorders
Other adverse events (15 terms — click to expand)

ReactionSystemNeoadjuvant PD-1 Blockade …Neoadjuvant PD-1 Blockade …
Reactive cutaneous capillary endothelial proliferation, RCCEPSkin and subcutaneous tissue disorders
AlopeciaSkin and subcutaneous tissue disorders
AnemiaBlood and lymphatic system disorders
Creatinine increasedRenal and urinary disorders
Lymphocyte count decreasedBlood and lymphatic system disorders
ALT increasedHepatobiliary disorders
VomitingGastrointestinal disorders
DiarrheaGastrointestinal disorders
Creatine kinase increasedCardiac disorders
Blood lactate dehydrogenase increasedHepatobiliary disorders
Mucositis oralSkin and subcutaneous tissue disorders
AST increasedHepatobiliary disorders
GGT increasedHepatobiliary disorders
Neutrophil count decreasedBlood and lymphatic system disorders
Platelet count decreasedBlood and lymphatic system disorders

Most-reported serious reactions: Neutrophil count decreased, White blood cell decreased, Lymphocyte count decreased, Alanine aminotransferase increased, Creatine kinase increased, Creatinine increased.

Data from ClinicalTrials.gov NCT04649476 adverse events section.

Sponsor's own description

The purpose of this study is to investigate the safety and feasibility of neoadjuvant PD-1 blockade alone or neoadjuvant PD-1 blockade plus TPF induction chemotherapy in subjects with resectable local advanced oral squamous cell carcinoma.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Neoadjuvant immunotherapy with or without chemotherapy in locally advanced oral squamous cell carcinoma: Randomized, two-arm, phase 2 trial.
    Liu HM, Xiong XP, Yu ZL, Shao Z, et al · · 2025 · cited 14× · PMID 39889711 · DOI 10.1016/j.xcrm.2025.101930
  2. USP2 inhibition unleashes CD47-restrained phagocytosis and enhances anti-tumor immunity.
    Dai P, Sun Y, Huang Z, Liu YT, et al · · 2025 · cited 11× · PMID 40379682 · DOI 10.1038/s41467-025-59621-5
  3. Salivary Microbiome Relates to Neoadjuvant Immunotherapy Response in OSCC.
    Wang XX, Liu YT, Ren JG, Liu HM, et al · · 2024 · cited 9× · PMID 39101654 · DOI 10.1177/00220345241262759
  4. Immune-featured stromal niches associate with response to neoadjuvant immunotherapy in oral squamous cell carcinoma.
    Liu YT, Liu HM, Ren JG, Zhang W, et al · · 2025 · cited 8× · PMID 40107247 · DOI 10.1016/j.xcrm.2025.102024
  5. Trends in immunotherapy for oral squamous cell carcinoma.
    Xue N, Wang Y, Wang Z, Zeng X, et al · · 2025 · cited 7× · PMID 40549116 · DOI 10.1007/s13402-025-01068-3
  6. Unravelling molecular mechanism of oral squamous cell carcinoma and genetic landscape: an insight into disease complexity, available therapies, and future considerations.
    Shebbo S, Alateyah N, Yassin E, Mahmoud DES, et al · · 2025 · cited 6× · PMID 40881676 · DOI 10.3389/fimmu.2025.1626243
  7. Spatial Heterogeneity of Intratumoral Microbiota: A New Frontier in Cancer Immunotherapy Resistance.
    Tan Q, Cao X, Zou F, Wang H, et al · · 2025 · cited 5× · PMID 40427087 · DOI 10.3390/biomedicines13051261
  8. PERK+ Macrophages Drive Immunotherapy Resistance in Lymph Node Metastases of Oral Squamous Cell Carcinoma.
    Zhang W, Li JB, Liu HM, Wang KM, et al · · 2025 · cited 3× · PMID 40036693 · DOI 10.1158/1078-0432.ccr-24-3135

Verify or expand the search:

Other trials of Camrelizumab

Trials testing the same drug.

Other recruiting trials for Oral Squamous Cell Carcinoma

Currently open trials in the same condition.

Other Hospital of Stomatology, Wuhan University trials

Trials by the same sponsor.

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