Neoadjuvant Camrelizumab With Palbociclib for Resectable Esophageal Squamous Cell Carcinomas

March 27, 2026 updated by: Xingchen Peng, West China Hospital

The Safety and Feasibility of Neoadjuvant Camrelizumab With Palbociclib for the Treatment of Resectable Esophageal Squamous Cell Carcinoma：A Phase 1 Trial

The purpose of this study is to explore the safety and feasibility of anti-programmed cell death 1(PD-1) immunotherapy, Camrelizumab, combined with cyclin-dependent kinase 4/6 blockade, Palbociclib, as a new neoadjuvant treatment regimen for patients with resectable esophageal squamous cell carcinoma (ESCC).

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

6

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
    • Sichuan
      • Chengdu, Sichuan, China, 610041
        • West China Hospital, Sichuan University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients diagnosed with esophageal squamous cell cancer by gastroscopic biopsies.
  • The primary tumor should be located in the thorax and evaluated resectable( cT1b-T3N1-3M0, cT3N0M0) by CT/MRI/EUS
  • The patients should be at the range of 18-75 years old, Eastern Cooperative Oncology Group (ECOG) 0-1.
  • The patients should have no functional disorders in major organs. Blood routine tests, as well as lung, liver, kidney, and heart functions should be basically normal.
  • The patients should be able to understand our research and be willing to accept surgical treatment and sign the informed consent.

Exclusion Criteria:

  • The stage of tumor is T4b (AJCC/International Union Against Cancer (UICC) 8th Edition) and cannot be resected.
  • Currently undergoing other chemotherapy, radiotherapy, targeted therapy or immunotherapy.
  • History of other malignancies.
  • Have an active autoimmune disease requiring systemic treatment or a documented history of clinically severe autoimmune disease.
  • Any history of allergic disease, or a sever hypersensitivity reaction to drugs, or allergy to the study drug components.
  • Presence of serious medical diseases, such as grade II and above cardiac dysfunction (NYHA criteria), ischemic heart diseases, etc.
  • The patients with severe systematic intercurrent diseases, including active infection or poorly controlled diabetes, coagulation disorders, hemorrhagic tendency, or those undergoing thrombolysis or anticoagulant therapy etc. are excluded from the study.
  • Female participants who test positive for a serum pregnancy test, are in the lactation period, or are at a childbearing stage and unwilling to use contraception measures during the research are excluded.
  • Received any investigational drug within 4 weeks prior to the first dose, or concurrently enrolled in another clinical trial.
  • Any other factors that are not suitable for inclusion in this study judged by investigators.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Camrelizumab+Palbociclib(100mg) 3 patients
For palbociclib, there is 2 dose levels, 100mg qd and 125 mg qd, and if no patients experience DLT on 100mg level, 125mg level will be administered.
Drug: Camrelizumab
Camrelizumab will be given at at a dose of 200 mg intravenously on day 23 of a planned 28-day cycle, and two doses before surgery.
Drug: Palbociclib(100mg)
Palbociclib will be given at a dose of 100 mg every day orally with three weeks on and one week off. Four weeks is a cycle and it will be given for three cycles.
Experimental: Camrelizumab+Palbociclib(125mg) 3 patients
For palbociclib, there is 2 dose levels, 100mg qd and 125 mg qd, and if no patients experience DLT on 100mg level, 125mg level will be administered.
Drug: Camrelizumab
Camrelizumab will be given at at a dose of 200 mg intravenously on day 23 of a planned 28-day cycle, and two doses before surgery.
Drug: Palbociclib(125mg)
Palbociclib will be given at a dose of 125 mg every day orally with three weeks on and one week off. Four weeks is a cycle and it will be given for three cycles.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety of combination camrelizumab and palbociclib as assessed by number of participants who experience adverse events
Time Frame: up to 15 weeks
Number of participants who experience grade 1 or higher adverse events, as defined by Common Terminology Criteria for Adverse Events version 5.0 (CTCAE v5.0)
up to 15 weeks
Feasibility of combination camrelizumab and palbociclib as assessed by number of participants who experience adverse events
Time Frame: up to 15 weeks
Patients proceed to surgery without experiencing prolonged treatment-related delays. An extended treatment-related delay will be considered if it exceeds 37 days from the initially scheduled surgery date. In terms of feasibility, if there is any treatment toxicity of any grade that could adversely impact prognosis, as judged by the investigators, the planned operative date should be re-evaluated.
up to 15 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression free survival(PFS)
Time Frame: Up to 2 years
Proportion of participants who achieve progression free survival post treatment
Up to 2 years
Overall survival (OS)
Time Frame: Up to 2 years
Proportion of participants who achieve survival post treatment
Up to 2 years
Major Pathologic Response
Time Frame: up to 15 weeks
Major Pathologic Response (MPR) was defined as fewer than 10% viable tumor cells.
up to 15 weeks
Objective response rate (ORR)
Time Frame: up to 15 weeks
Proportion of participants with measurable disease at baseline and have been re-evaluated after at least 1 cycle of therapy with observed reduction in tumor burden as defined by RECIST and iRECIST criteria after 2 doses of Proportion of participants with measurable disease at baseline and have been re-evaluated after at least 1 cycle of therapy with observed reduction in tumor burden as defined by RECIST and iRECIST criteria after 2 doses of camrelizumab and palbociclib
up to 15 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

West China Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 27, 2024

Primary Completion (Actual)

June 3, 2025

Study Completion (Estimated)

February 7, 2027

Study Registration Dates

First Submitted

July 20, 2024

First Submitted That Met QC Criteria

October 22, 2024

First Posted (Actual)

October 23, 2024

Study Record Updates

Last Update Posted (Actual)

April 2, 2026

Last Update Submitted That Met QC Criteria

March 27, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2023-1551-E

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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