The Effects of Preoperative Bevacizumab on Perioperative Complications

March 5, 2021 updated by: Suzhanzhang, Second Affiliated Hospital, School of Medicine, Zhejiang University

The Effects of Preoperative Bevacizumab on Perioperative Complications in Patients With Tumor Undergoing Unexpected Operation

This is a nationwide multicenter,retrospective,observational real-world study.

  1. To assess the risk of perioperative complications in patients with tumor who received bevacizumab prior to unexpected operation.
  2. To assess the correlation of the interval time between the last dose of bevacizumab and operation and occurrence of perioperative complications.
  3. To explore the risk factors of perioperative comlications in patients with tumor received bevacizumab prior to unexpected operation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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

Avastin (bevacizumab) is a recombinant humanized monoclonal IgG1 antibody that binds to and inhibits the biologic activity of human vascular endothelial growth factor(VEGF) in in vitro and in vivo assay systems. Bevacizumab was first granted marketing approval in the United States on 26 February 2004 (international birth date) in combination with IV 5-fluorouracil(5-FU) based chemotherapy for the first-line treatment of patients with metastatic carcinoma of the colon or rectum (CRC). At present, bevacizumab is widely used in the treatment of solid tumors such as lung cancer ,colorectal cancer and so on. It has been reported in the literature that bevacizumab may adversely affect wound healing. To prevent postoperative complications, some guidelines state that the interval time between last dose of bevacizumab and operations should be at least 6 weeks, but the optimal time to discontinue bevacizumab before surgery has not been confirmed. This project aims to evaluate the risk of perioperative complications in cancer patients with a history of bevacizumab use within 6 weeks prior to unexpected operation.

This is a nationwide multicenter,retrospective,observational real-world study.The study will collect the medical records and prognosis in 30 days following surgery of patients with colorectal cancer and lung cancer who underwent unexpected operation within 6 weeks (including 6 weeks) of bevacizumab discontinuation from 01 Jan 2010 to 31 Dec 2019.All enrolled subjects aged 18-90 years old; Complete clinical data related to important indicators, including preoperative baseline data, surgical information and perioperative prognosis information. The patients who used anti-angiogenic agents other than bevacizumab within 6 weeks prior to surgery would be excluded.

Primary Evaluation Measures: To assess the risk of perioperative complications in patients with tumor who received bevacizumab prior to unexpected operation:to calculate the total incidence of perioperative complications in patients undergoing unexpected surgery after discontinuation of bevacizumab, including wound healing complications, non-wound-related infections, postoperative bleeding, thrombosis, gastrointestinal perforation, anastomotic leakage, secondary surgery, death and other perioperative adverse events;to calculate the incidence of each perioperative complication in patients undergoing unexpected operation after bevacizumab discontinuation.

SAS9.4 statistical analysis software will be used for analysis. Measurement indicators will be statistically described using number of cases, mean, median, standard deviation, minimum and maximum; categorical indicators will be statistically described using frequency and percentage. Unless otherwise specified, all statistical tests will adopt the two-sided test with α = 0.05, and the corresponding OR value and two-sided 95% confidence interval will be provided if applicable.

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 (Anticipated)

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.
100

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.
  • Name: Su Zhan Zhang, PhD
  • Phone Number: 008613600511585
  • Email: zrsj@zju.edu.cn

Study Locations

  • China
    • Zhejiang
      • Hangzhou, Zhejiang, China, 0571
        • The Second Affiliated Hospital Zhejiang University School of Medicine
        • Contact:
          • Zhang Su Zhan, Doctor
          • Phone Number: 008613600511585
          • Email: zrsj@zju.edu.cn

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 90 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Adult participants with colorectal canceror lung cancer who underwent unexpected operation within 6 weeks (including 6 weeks) of bevacizumab discontinuation.

Description

Inclusion Criteria:

  • 1.Patients with colorectal cancer and lung cancer who underwent unexpected operation from 01 Jan 2010 to 31 Dec 2019, and received bevacizumab within 6 weeks (including 6 weeks) before operation;
  • 2.Patients aged 18-90 years old;
  • 3.Complete clinical data related to important indicators, including preoperative baseline data, surgical information and perioperative prognosis information.

Exclusion Criteria:

  • Patients who used anti-angiogenic agents other than bevacizumab within 6 weeks prior to unexcepted operation.

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.
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.
Participants with CRC or lung cancer was performed unexpected operation
This is an observational study; thus, no intervention or treatment is required by the protocol. During the study, enrolled patients may be eligibled if bevacizumab was discontinued within 6 weeks prior to unexpected operation.
Drug: Bevacizumab
Enrolled patients may be eligibled if bevacizumab was discontinued within 6 weeks prior to unexpected operation.
Other Names:
  • Avastin

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
To assess the risk of perioperative complications in patients with tumor who received bevacizumab prior to unexpected operation.
Time Frame: 30 days after operation
To calculate the total incidence of perioperative complications in patients undergoing unexpected surgery after discontinuation of bevacizumab, including wound healing complications, non-wound-related infections, postoperative bleeding, thrombosis, gastrointestinal perforation, anastomotic leakage, secondary surgery, death and other perioperative adverse events;To calculate the incidence of each perioperative complication in patients undergoing unexpected operation after bevacizumab discontinuation.
30 days after operation

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
To assess the correlation of the interval time between the last dose of bevacizumab and operation and occurrence of perioperative complications.
Time Frame: 30 days after operation
According to the interval between the last dose of preoperative bevacizumab and surgery, the patients were divided into three groups: within 2 weeks (including 2 weeks), 2 weeks to 4 weeks (including 4 weeks), and 4 weeks to 6 weeks (including 6 weeks). If the number of patients actually enrolled in each group was too small to support subsequent analysis, the grouping was adjusted according to the interval between the last dose of preoperative bevacizumab and surgery, such as two groups: within 4 weeks, 4 weeks to 6 weeks, or the possibility of other grouping, depending on the actual enrollment.
30 days after operation

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.
Second Affiliated Hospital, School of Medicine, Zhejiang University

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Su Zhan Zhang, Second Affiliated Hospital, School of Medicine, Zhejiang University

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 (ANTICIPATED)

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.
April 1, 2021

Primary Completion (ANTICIPATED)

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 31, 2021

Study Completion (ANTICIPATED)

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.
July 31, 2021

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).
March 5, 2021

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.
March 5, 2021

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.
March 9, 2021

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.
March 9, 2021

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.
March 5, 2021

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.
March 1, 2021

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.
  • RWS-CRC-LC-S

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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