Accuracy of Coplanar Template Assisted Seed Implantation for Abdominal and Pelvic Cancer

July 30, 2022 updated by: Qiu Bin, Peking University Third Hospital

In recent years, template guidance has been applied and developed in the field of puncture related operations, such as template-assisted radioactive seed implantation. With the guidance of template, needle pathway of seed implantation, biopsy and fiducial marker implantation can be precisely planned actual operation, which is conducive to the accurate proceeding. Templates can be divided into coplanar templates and non-coplanar templates. The digital coplanar template coordinate puncture system has been developed in China and has been applied in clinical practice.

In previous studies, coplanar template assisted CT-guided radioactive seed implantation has good clinical feasibility for head and neck cancer. However, the accuracy of Coplanar Template Assisted Seed Implantation for Abdominal and Pelvic cancer are lacking in prospective studies. The study aims to prospectively observe the accuracy and safety of Coplanar Template Assisted Seed Implantation for Abdominal and Pelvic cancer.

Study Overview

Study Type

Observational

Enrollment (Anticipated)

34

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

    • Beijing
      • Beijing, Beijing, China
        • Recruiting
        • Peking University Third Hospital
        • 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

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with Abdominal and Pelvic cancer who are planned to undergo Coplanar Template Assisted Seed Implantation.

Description

Inclusion Criteria:

  1. Ages 18 to 85
  2. Single or multiple abdominal or pelvic tumors (solid, partially solid)
  3. Without taking drugs affecting coagulation and/or platelet aggregation are used; If used, the drug has been discontinued for a sufficient period of time (e.g. 1 week)
  4. KPS>60 points with expected survival >3 months, no serious or uncontrolled underlying diseases, clinical evaluation patients can tolerate puncture
  5. Planned seed implantation with applicable puncture path
  6. With informed consent.

Exclusion Criteria:

  1. Poor organ function (e.g. Liver decompensation)
  2. The lesion close to blood vessels and intestine, or there is portal vein hypertension and superior vena cava compression, etc., which are expected to have high risks of puncture bleeding and intestinal injury
  3. Poor compliance, unable to complete coordination
  4. Paticipant who is considered inappropriate or unwilling to participate in this clinical trial for other reasons.

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dosimetry (D90) between pre-plan and post-plan
Time Frame: From the starting to the ending of the seed implantation (generally within 1 week).
Dose covering 90% of target volume between pre-plan and post-plan
From the starting to the ending of the seed implantation (generally within 1 week).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Success rate of seed implantation
Time Frame: From the starting to the ending of the seed implantation (generally within 1 day).
Success rate of seed implantation
From the starting to the ending of the seed implantation (generally within 1 day).
Adverse event
Time Frame: Acute adverse event is defined as 1 month after seed implantation and beyond 1 month for chronic adverse event.
Such as pneumoperitoneum, subcutaneous emphysema, hemorrhage, infection, etc.
Acute adverse event is defined as 1 month after seed implantation and beyond 1 month for chronic adverse event.
Operating duration
Time Frame: From the starting to the ending of the seed implantation (generally within 2 hours)
Operating duration from the starting to the ending
From the starting to the ending of the seed implantation (generally within 2 hours)
Local progression-free survival
Time Frame: From date of seed implantation until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years
Local progression-free survival:Duration of the seed implantation to local tumor progression
From date of seed implantation until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Junjie Wang, M.D., Peking University Third 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)

April 1, 2022

Primary Completion (Anticipated)

March 31, 2024

Study Completion (Anticipated)

March 31, 2024

Study Registration Dates

First Submitted

July 18, 2022

First Submitted That Met QC Criteria

July 30, 2022

First Posted (Actual)

August 2, 2022

Study Record Updates

Last Update Posted (Actual)

August 2, 2022

Last Update Submitted That Met QC Criteria

July 30, 2022

Last Verified

July 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ChiECRCT20220009

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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