An Observational Clinical Study Plan on the Effects of Radiotherapy on the Immune System of Patients With Malignant Tumors.

January 1, 2024 updated by: Yong Wu, Guangzhou First People's Hospital
To explore the impact of radiotherapy on peripheral blood myeloid-derived suppressor cells (MDSCs), T cells and extramedullary erythroid precursor cells in patients with malignant tumors, and to evaluate the correlation between changes in the proportion of these cells before and after radiotherapy and the efficacy of radiotherapy in patients.

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.

Detailed Description

To clarify the impact of radiotherapy (and/or other treatment combinations) on the proportion of myeloid-derived suppressor cells (MDSCs), T cells and extramedullary erythroid precursor cells in the peripheral blood of patients with malignant tumors, and to evaluate the changes in the proportion of these cells before and after radiotherapy and the relationship between the patients Correlation with the efficacy of radiotherapy. On this basis, it provides theoretical guidance for the determination of new clinical treatment plans.

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.
Observational

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.
200

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 Locations

  • China
    • Guangdong
      • Guangzhou, Guangdong, China, 510000
        • Recruiting
        • GuangzhouFPH
        • Contact:

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

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Probability Sample

Study Population

  1. Over 18 years old, diagnosed with breast cancer, nasopharyngeal cancer, colorectal cancer, cervical cancer, lung cancer, head and neck cancer and requiring radiotherapy, and the above malignant tumors have not metastasized.
  2. Complete inspection information.
  3. No other serious complications.
  4. No infectious diseases.
  5. Able and willing to take blood tests.
  6. All researchers gave informed consent and signed an informed consent form, which complied with the requirements of the Medical Ethics Committee.

Description

Inclusion Criteria:

  1. Over 18 years old, diagnosed with breast cancer, nasopharyngeal cancer, colorectal cancer, cervical cancer, lung cancer, head and neck cancer and requiring radiotherapy, and the above malignant tumors have not metastasized.
  2. Complete inspection information.
  3. No other serious complications.
  4. No infectious diseases.
  5. Able and willing to take blood tests.
  6. All researchers gave informed consent and signed an informed consent form, which complied with the requirements of the Medical Ethics Committee.

Exclusion Criteria:

  1. People with mental illness.
  2. People with autoimmune system diseases.
  3. Those combined with serious diseases of other organs.
  4. Those with severe alcoholism and drug abuse.
  5. Research subjects who voluntarily withdraw from the study.

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Before radiotherapy,
Samples were collected from patients with breast cancer, nasopharyngeal cancer, colorectal cancer, cervical cancer, lung cancer, and head and neck cancer. 5 ml of peripheral blood was extracted from these patients before radiotherapy, and flow cytometry was used to detect MDSCs, T cells, and erythroid precursor cells.
During radiotherapy
Samples were collected from patients with breast cancer, nasopharyngeal cancer, colorectal cancer, cervical cancer, lung cancer, and head and neck cancer. 5 ml of peripheral blood was extracted from these patients during radiotherapy, and flow cytometry was used to detect MDSCs, T cells, and erythroid precursor cells.
After radiotherapy
Samples were collected from patients with breast cancer, nasopharyngeal cancer, colorectal cancer, cervical cancer, lung cancer, and head and neck cancer. 5 ml of peripheral blood was extracted from these patients after radiotherapy, and flow cytometry was used to detect MDSCs, T cells, and erythroid precursor cells.
3 months after radiotherapy
Samples were collected from patients with breast cancer, nasopharyngeal cancer, colorectal cancer, cervical cancer, lung cancer, and head and neck cancer. 5 ml of peripheral blood was extracted from these patients 3 months after radiotherapy, and flow cytometry was used to detect MDSCs, T cells, and erythroid precursor cells.

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
Erythroid precursor cells increase after radiotherapy.
Time Frame: Erythroid precursor cells increase after radiotherapy.Erythroid precursor cells gradually decreased to the pre-radiation level after 3 months of radiotherapy.
Erythroid precursor cells increase after radiotherapy.Erythroid precursor cells gradually decreased to the pre-radiation level after 3 months of radiotherapy.
Erythroid precursor cells increase after radiotherapy.Erythroid precursor cells gradually decreased to the pre-radiation level after 3 months of radiotherapy.

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
Peripheral blood myeloid-derived suppressor cells (MDSCs) increase after radiotherapy.
Time Frame: Peripheral blood myeloid-derived suppressor cells (MDSCs) increase after radiotherapy.Peripheral blood myeloid-derived suppressor cells (MDSCs) gradually decreased to the pre-radiation level after 3 months of radiotherapy.
Peripheral blood myeloid-derived suppressor cells (MDSCs) increase after radiotherapy.Peripheral blood myeloid-derived suppressor cells (MDSCs) gradually decreased to the pre-radiation level after 3 months of radiotherapy.
Peripheral blood myeloid-derived suppressor cells (MDSCs) increase after radiotherapy.Peripheral blood myeloid-derived suppressor cells (MDSCs) gradually decreased to the pre-radiation level after 3 months of radiotherapy.

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.
Guangzhou First People's Hospital

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.
August 8, 2023

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.
December 1, 2024

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.
December 1, 2024

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 1, 2024

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.
January 1, 2024

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.
January 11, 2024

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.
January 11, 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.
January 1, 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.
January 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.
  • K-2023-093-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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