Modified Sandwich Therapeutic Regimen for Locally Advanced Rectal Cancer

April 19, 2024 updated by: Zhen-Hai Lu

Single Arm and Phase II Clinical Trial of a Sandwich Regimen as XELOX Regimen and Capecitabine Alternate Administration Combined With Preoperative Intensity Modulated Radiation Therapy for pMMR Locally Advanced Rectal Cancer

In the treatment of locally advanced rectal cancer, the short-term and long-term efficacy of the traditional sandwich regimen has not reached satisfactory efficacy. For this reason, the concept of reducing the dose of postoperative chemotherapy or directly moving forward the full amount of postoperative chemotherapy was proposed, which is called total neoadjuvant therapy (TNT). However, TNT also includes the high toxicity of oxaliplatin in the whole process and the long time interval between the end of radiotherapy and the operation, which leads to fibrosis of the surrounding tissue, which increases the difficulty of surgical resection and makes it difficult to ensure good surgical specimen quality. In addition to this, there are issues that may increase the risk of potential disease progression in patients with poor treatment withdrawal. Therefore, appropriately reducing the intensity of chemotherapy and controlling the total duration of preoperative neoadjuvant therapy during radiotherapy is expected to alleviate the side effects of neoadjuvant therapy. Here, the investigators synthesized the characteristics of TNT and sandwich regimens and proposed a XELOX regimen and capecitabine alternate administration combined with preoperative intensity modulated radiation therapy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
121

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China
        • Recruiting
        • Zhenhai Lu
        • Sub-Investigator:
          • Zhifan Zeng, M.D
        • Contact:
        • Contact:
        • Sub-Investigator:
          • Xiaojun Wu, M.D
        • Sub-Investigator:
          • Junzhong Lin, M.D
        • Sub-Investigator:
          • Rongxin Zhang, M.D
        • Sub-Investigator:
          • Weiwei Xiao, M.D
        • Sub-Investigator:
          • Yujing Fang, Ph.D
        • Sub-Investigator:
          • Fulong Wang, M.D
        • Sub-Investigator:
          • Jianhong Peng, M.D
        • Sub-Investigator:
          • Yuan Li, M.D
        • Sub-Investigator:
          • Qingjian Ou, M.D
        • Sub-Investigator:
          • Weili Zhang, M.D
        • Sub-Investigator:
          • Jiali Chen, M.D

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Pathological confirmed rectal adenocarcinoma.

Clinical stage T3-4 or T any N1.With or without MRF positivity, with or without EMVI positivity, R0 resection is estimated.

No metastasis

No signs of intestinal obstruction; or intestinal obstruction has been relieved after proximal colostomy surgery.

Age ranged from 18 to 75

No previous radiotherapy，surgery and chemotherapy.

Exclusion Criteria:

Multiple primary tumor

Cachexy

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Sandwich Regimen
All rectal patients in this group will receive standard surgical resection.
Drug: XELOX
Starting from the first day of radiotherapy (set as day 0), the patient received a total of 4 courses of XELOX chemotherapy on days -42, -21, 42, and 63, including oxaliplatin 130 mg/m2, intravenous administration, d1, repeat every 3 weeks; and capecitabine 1000mg/m2, twice daily, d1-d14, repeat every 3 weeks.
Drug: Capecitabine monotherapy
During radiotherapy (Monday to Friday), capecitabine was administered at 1650 mg/m2/d, twice a day.
Radiation: Radiation
The TV is expanded by 6-7mm to form PTV1, and the CTV is expanded by 6-7mm to form PTV2. The dose of PTV1 was 50Gy/25 times/35 days, and the dose of PTV2 was 45Gy/25 times/35 days, 5 times/week for a total of 5 weeks.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Rate of pCR
Time Frame: One week after surgery
rate of pathological complete remission
One week after surgery

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
OS
Time Frame: 5 years
overall survival
5 years
DFS
Time Frame: 3 years
Disease free survival
3 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Zhen-Hai Lu

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 2, 2022

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 22, 2022

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 7, 2022

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 8, 2022

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 22, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 19, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2021-FXY-494-Department of CRC

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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