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

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

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05483452
Enrollment
34
Registered
2022-08-02
Start date
2024-03-01
Completion date
2025-03-31
Last updated
2024-06-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

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

Keywords

Coplanar Template, Abdominal and Pelvic cancer, Seed Implantation

Brief summary

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.

Interventions

None listed

Sponsors

Peking University Third Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Dosimetry (D90) between pre-plan and post-planFrom 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

Secondary

MeasureTime frameDescription
Success rate of seed implantationFrom the starting to the ending of the seed implantation (generally within 1 day).Success rate of seed implantation
Adverse eventAcute 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.
Operating durationFrom the starting to the ending of the seed implantation (generally within 2 hours)Operating duration from the starting to the ending
Local progression-free survivalFrom 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 yearsLocal progression-free survival:Duration of the seed implantation to local tumor progression

Countries

China

Contacts

Primary ContactBin Qiu, M.D.
542122203@qq.com01082265968

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026