Radiotherapy in Patients With Metastatic Esophageal Cancer Responding to PD-1 Inhibitor Plus Chemotherapy

Radiotherapy in Patients With Metastatic Esophageal Cancer Responding to PD-1 Inhibitor Plus Chemotherapy: a Patient Preference Multicenter Randomized Phase II Trial

The treatment efficacy for stage IVb esophageal cancer has been improved through chemotherapy combined with immunotherapy recently.

On this basis, the investigators intend to conduct a prospective, multicenter phase II clinical trial to assess whether radiotherapy could further improve the survival of patients with metastatic esophageal cancer responding to PD-1 Inhibitor plus chemotherapy.

Accompanied tissue samples, blood samples and urine samples will be analyzed by molecular biological detection (Including Whole Exome Sequencing and proteomics) to explore potential biomarkers for predicting outcomes, efficacy and toxicity.

Study Overview

Detailed Description

Esophageal cancer (EC) is one of the most common carcinomas with high morbidity and mortality worldwide. More than 30% of the patients were stage IV when diagnosed. Fluoropyrimidine plus platinum-based chemotherapy is recommended as first-line treatment for patients with metastatic EC for approximately four decades, however, only minimal improvement has been reached in overall survival (OS).

Recently, immune checkpoint inhibitors have shown effective antitumor activity in patients with unresectable, advanced or metastatic EC. Several randomized trials have demonstrated the PD-1 inhibitor could further improve the OS in patients with advanced esophageal squamous cell carcinoma (ESCC) on the basis of chemotherapy. Chemotherapy combined with immunotherapy has become one of the the standard treatment modality for metastatic EC.

As reported, for the patients with metastatic lung cancer or EC, locoregional radiotherapy could improve survival, especially in those who responding to systemic therapy. However, high-level evidence is still needed to assess whether these patients can benefit from local radiotherapy.

The efficacy of immunotherapy combined with chemotherapy is obviously better than that of chemotherapy alone. On this basis, locoregional radiotherapy may help those patients with metastatic EC responding to systemic therapy improve local control, relieve the local symptoms, and even improve survival.

Therefore, the investigators intend to conduct a prospective, multicenter phase II trial to assess the efficiency and safety of radiotherapy with chemotherapy and immunotherapy for patients with metastatic EC. Accompanied tissue samples, blood samples and urine samples will be analyzed by molecular biological detection to explore potential biomarkers for predicting outcomes, efficacy and toxicity.

Study Type

Interventional

Enrollment (Estimated)

120

Phase

  • Phase 2

Contacts and Locations

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

Study Contact

Study Locations

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:

  • 1. ≥18 years, any gender
  • 2. Histologically or cytologically confirmed squamous cell carcinoma of esophageal cancer. The initial clinical stage is IVb (2018 AJCC Cancer Staging Manual, 8th Edition) or recurrent patients with recurrence after radical treatment (radical treatment includes surgery and radiotherapy, but the recurrence site cannot be located in the previous radiotherapy field).
  • 3. ECOG performance status <= 1. Patients aged 65 years and over need to complete G8 screening or Comprehensive Geriatric Assessment, and the final evaluation is good;
  • 4.There was no significant abnormality in laboratory routine indicators such as blood routine and liver and kidney function;
  • 5.For patients after definitive or preoperative radiotherapy, no recurrence was in the prior radiation filed;
  • 6.Expected survival is more than 12 weeks;
  • 7.Informed consent provided;
  • 8.With response to 2-4 cycles of the first-line chemotherapy combined with immunotherapy.

Exclusion Criteria:

  • 1.Patients with other cancer history except hypopharyngeal carcinoma in situ, non-malignant skin cancer and cervical carcinoma in situ.
  • 2.Received surgery (except ostomy), chemotherapy or other anti-tumor treatment before enrollment;
  • 3. Active infection currently exists . The following conditions occurred within 6 months before randomization: myocardial infarction, cerebrovascular accident, or received gastrointestinal, neurological, cardiopulmonary surgery;
  • 4. History of allergy to chemotherapy drugs or autoimmune disease;
  • 5. Participate in other clinical trials at present or within 4 weeks before enrollment;
  • 6.There are factors such as high risk of fistula that radiotherapy cannot be safely carried out as assessed by the radiation oncologist.

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Consolidation radiotherapy
This treatment group will be receive radiotherapy on the basis of standard first-line treatment, after all planned cycles of chemotherapy combined with PD-1 inhibitor completed.

A maximum of six cycles was recommended for chemotherapy.

  • Fluoropyrimidine (fluorouracil or capecitabine) with carboplatin or cisplatin;
  • Paclitaxel (or Albumin-bound paclitaxel) with carboplatin or cisplatin.
Other Names:
  • Chemotherapy
IMRT/VMAT technique. Patients receive radiotherapy once daily, 5 days a week for an average of 5 weeks. Radiotherapy is delivered to achieve a dosage of 49.22Gy/23f or 50Gy/25f to PGTV for lymphnode metastasis only patients and 40.66Gy/19f or 40Gy/20f for organ metastasis patients. Radiation treatment is planned after chemotherapy completed.
Other Names:
  • Planned Radiotherapy
Nivolumab or Pembrolizumab or Tislelizumab or Serplulimab or Toripalimab or Sintilimab or Camrelizumab
Other Names:
  • Immunotherapy
Experimental: Salvage radiotherapy
This treatment group will be receive salvage radiotherapy on the basis of standard first-line treatment, when disease progressed and salvage radiotherapy is recommended by multidisciplinary team.

A maximum of six cycles was recommended for chemotherapy.

  • Fluoropyrimidine (fluorouracil or capecitabine) with carboplatin or cisplatin;
  • Paclitaxel (or Albumin-bound paclitaxel) with carboplatin or cisplatin.
Other Names:
  • Chemotherapy
Nivolumab or Pembrolizumab or Tislelizumab or Serplulimab or Toripalimab or Sintilimab or Camrelizumab
Other Names:
  • Immunotherapy
IMRT/VMAT technique. Patients receive radiotherapy once daily, 5 days a week for an average of 5 weeks. Radiotherapy is delivered to achieve a dosage of 49.22Gy/23f or 50Gy/25f to PGTV for lymphnode metastasis only patients and 40.66~49.22Gy/19f ~23f or 40~50Gy/20~25f for organ metastasis patients. Radiation treatment is planned after disease progression when recommended by multidisciplinary team.
Other Names:
  • Radiotherapy when needed

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
EFFICACY:1-year overall survival probability
Time Frame: 12 month
Overall survival was defined as the time from first dose to death due to any cause. Participants without documented death at the time of the final analysis were censored at the date of the last follow-up. OS is reported for all participants of the Intent-To-Treat (ITT) population. The Kaplan-Meier method was used to calculated the 1-year survival probability.
12 month

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
EFFICACY: Median progression-free survival (PFS)
Time Frame: 12 month
Median progression-free survival (PFS), was defined as the time from first dose to the first documented progressive disease (PD) per RECIST 1.1 as assessed by the investigator, or death due to any cause, whichever occurred first.
12 month
SAFETY: Acute toxicity rate
Time Frame: One month within the end of one specific treatment
Acute toxicity Rate, was defined as the frequency of toxicities related to the treatment, which arises within one month after administration, according to National Cancer Institute Common Terminology Criteria for Adverse Event,Version 5.0 (CTC AE5.0).
One month within the end of one specific treatment
SAFETY: Late toxicity rate
Time Frame: One month after the end of one specific treatment.
Late toxicity rate, was defined as the frequency of toxicities related to the treatment, which arises after one month after administration, according to National Cancer Institute Common Terminology Criteria for Adverse Event,Version 5.0 (CTC AE5.0).
One month after the end of one specific treatment.
QUALITY OF LIFE: Change From Baseline in the EORTC QLQ-C30 Subscale Scores in Participants
Time Frame: 24 month
The score of the participants evaluated by The EORTC core quality of life questionnaire (QLQ-C30). All of the scales and single-item measures range in score from 0 to100.A high scale score represents a higher response level. Thus a high score for a functional scale represents a high/healthy level of functioning.
24 month
QUALITY OF LIFE: Change From Baseline in the EORTC QLQ-OES18 Subscale Scores in Participants
Time Frame: 24 month
The score of the participants evaluated by The EORTC Quality of Life Questionnaire - Oesophageal Cancer Module (EORTC QLQ-OES18). All of the scales and single-item measures range in score from 0 to100.A high scale score represents a higher response level. Thus a high score for a functional scale represents a high/healthy level of functioning.
24 month

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Biomarkers for the predicting of efficacy
Time Frame: 24 month
To explore the dynamic changes of circulating tumor DNA (the frequency of specific mutations by Next-generation sequencing Methodology) from baseline, before and after radiotherapy.
24 month

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Wen-Yang Liu, MD, Cancer Institute and Hospital, Chinese Academy of Medical Sciences
  • Principal Investigator: Zhi-Hao Lu, MD, Peking University Cancer Hospital & Institute

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.

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 16, 2023

Primary Completion (Estimated)

April 26, 2026

Study Completion (Estimated)

October 26, 2028

Study Registration Dates

First Submitted

September 19, 2023

First Submitted That Met QC Criteria

October 12, 2023

First Posted (Actual)

October 16, 2023

Study Record Updates

Last Update Posted (Actual)

June 14, 2024

Last Update Submitted That Met QC Criteria

June 12, 2024

Last Verified

June 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Data obtained through this study may be provided to qualified researchers with academic interest in esophageal cancer. Data or samples shared will be coded, with no PHI included. Approval of the request and execution of all applicable agreements (i.e. a material transfer agreement) are prerequisites to the sharing of data with the requesting party.

IPD Sharing Time Frame

Data requests can be submitted starting 12 months after article publication and the data will be made accessible for up to 24 months. Extensions will be considered on a case-by-case basis

IPD Sharing Access Criteria

Access to trial IPD can be requested by qualified researchers engaging in independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). For more information or to submit a request, please contact liuwenyang@cicams.ac.cn

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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