Comparison Between Partial Nephrectomy and Ablation for Renal Tumor

NCT ID: NCT03094949

Last Updated: 2017-03-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-07-01

Study Completion Date

2017-09-01

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The therapeutic effectiveness of ultrasound guided cooled-probe microwave ablation and laparoscopic partial nephrectomy on T1a renal cell carcinoma is compared to find a better approach for renal tumor.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Renal Cell Carcinoma

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Partial Nephrectomy

a kind of operation for renal tumor

Group Type ACTIVE_COMPARATOR

Partial Nephrectomy

Intervention Type PROCEDURE

The renal capsule is cut in a monopolar fashion around the tumor. After the renal artery is clamped with a bulldog clamp, cold cutting by scissors into the renal parenchymal boundary of the tumor is performed with an optimal surgical margin (a few millimeters). After retrograde injection of diluted indigo carmine, continuous suturing of the opened collecting system and transection of the major vessels is performed with intracorporeal knot-tying. Parenchymal suturing is performed in a continuous fashion. The 20-30 cm length of thread is used, and a knot is made at the end of the thread. A large Hem-o-lok polymer clip (Weck Closure System, Research Triangle Park, NC) is attached on the proximal side of the knot. Before the thread is tightened or cinched, the parenchyma is sutured in a running fashion with three or four stitches without any bolster so that the renal bed is kept in its natural position during the suturing.

microwave ablation

a kind of minimally invasive therapy by using microwave device for renal tumors

Group Type EXPERIMENTAL

microwave ablation

Intervention Type PROCEDURE

Microwave ablation is a technique that uses thermal therapy to induce complete necrosis of tumor in situ by using microwave ablation device.Antenna in the microwave ablation device was percutaneously inserted into the tumor and placed at designated place under US guidance. For tumors less than 1.5 cm, one antenna was inserted and for tumors measuring 1.5 cm or greater, two antennae were inserted in parallel with an inter-antenna distance of 1.0-2.5 cm, which were used simultaneously during MWA to obtain larger ablation zone. A 20G thermocouple was inserted about 0.5-1 cm away from the tumor for real-time temperature monitoring during MWA. MW emission didn't stop until the heat-generated hyperechoic water vapor completely encompassed the entire tumor and the measured temperature reached 60°C or remained above 54°C for at least three minutes.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Partial Nephrectomy

The renal capsule is cut in a monopolar fashion around the tumor. After the renal artery is clamped with a bulldog clamp, cold cutting by scissors into the renal parenchymal boundary of the tumor is performed with an optimal surgical margin (a few millimeters). After retrograde injection of diluted indigo carmine, continuous suturing of the opened collecting system and transection of the major vessels is performed with intracorporeal knot-tying. Parenchymal suturing is performed in a continuous fashion. The 20-30 cm length of thread is used, and a knot is made at the end of the thread. A large Hem-o-lok polymer clip (Weck Closure System, Research Triangle Park, NC) is attached on the proximal side of the knot. Before the thread is tightened or cinched, the parenchyma is sutured in a running fashion with three or four stitches without any bolster so that the renal bed is kept in its natural position during the suturing.

Intervention Type PROCEDURE

microwave ablation

Microwave ablation is a technique that uses thermal therapy to induce complete necrosis of tumor in situ by using microwave ablation device.Antenna in the microwave ablation device was percutaneously inserted into the tumor and placed at designated place under US guidance. For tumors less than 1.5 cm, one antenna was inserted and for tumors measuring 1.5 cm or greater, two antennae were inserted in parallel with an inter-antenna distance of 1.0-2.5 cm, which were used simultaneously during MWA to obtain larger ablation zone. A 20G thermocouple was inserted about 0.5-1 cm away from the tumor for real-time temperature monitoring during MWA. MW emission didn't stop until the heat-generated hyperechoic water vapor completely encompassed the entire tumor and the measured temperature reached 60°C or remained above 54°C for at least three minutes.

Intervention Type PROCEDURE

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Patients with the RCC of ≤4 cm maximum diameter were included in the study.

Exclusion Criteria

* Patients having RCCs with vascular invasion, extrarenal spread or with benign renal tumors were excluded.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Chinese PLA General Hospital

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Ping Liang

Prof.

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Chinese PLA General Hospital

Beijing, Beijing Municipality, China

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

China

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Jie Yu, Dr

Role: CONTACT

8610-66939530

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Jie Yu, Doctor

Role: primary

8610-66939530

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

301jrcs

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

RFA vs. SBRT for Small HCC
NCT03898921 UNKNOWN PHASE3