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Percutaneous Cryoablation Versus Partial Nephrectomy for T1b Renal Tumor

A Prospective, Non-randomized, in Parallel Groups Study Evaluating the Efficacy and Safety of Percutaneous Cryoablation and Partial Nephrectomy in Localized T1b Renal Tumor

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04506671
Enrollment
142
Registered
2020-08-10
Start date
2020-05-22
Completion date
2025-06-22
Last updated
2021-07-28

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

Conditions

Renal Tumor

Keywords

Cryoablation, Renal cancer, Partial nephrectomy

Brief summary

The aim of our study is to assess the long-term oncological and functional outcomes of cryoablation for T1b renal tumors, as well as such important parameters as the patient's quality of life after treatment, and to compare the results with those after partial nephrectomy.

Interventions

PROCEDURERenal biopsy

Renal biopsy will be performed prior to the cryoablation on the basis of the center and according to the current protocols

PROCEDURECryoablation

Cryoablation under CT guidance will be performed on the basis of the center and according to the current protocols

PROCEDUREPartial nephrectomy

Partial nephrectomy will be performed on the basis of the center and according to the current protocols

Sponsors

I.M. Sechenov First Moscow State Medical University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

•CT-confirmed renal mass \> 4 to 7 cm (T1b)

Exclusion criteria

* Multiple renal tumors; * Recurrence of renal tumor; * Intolerance to iodine-containing contrast agents; * Pregnancy; * Patients with Bosniak 4 cysts * Presence of other oncological diseases; * Impossibility of organ-preserving treatment due to the proximity of the tumor to the vessels or the calyx-pelvic system * Absence of malignant pathology based on prior biopsy.

Design outcomes

Primary

MeasureTime frameDescription
Local recurrence5 yearsLocal recurrance will be evaluated with CT after 6 months, a year, then annually - up to 5 years after the treatment

Secondary

MeasureTime frameDescription
Quality of life assessment: The European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ C-30)5 yearsQuality of life will be assessed using scales EORTC QLQ C-30, ranging from 1 to 100, where higher score indicating a better Quality of Life
Renal function5 yearsRenal function will be evaluated with eGFR
Rate of adverse events3 monthsRate of intra- and postoperative adverse events will be assessed according to Clavien-Dindo grade system
Metastatic progression5 yearsPresence of metastases will be evaluated with CT after 6 months, a year, then annually - up to 5 years after the treatment
Length of hospital stay1 monthNumber of days spent in hospital
Pain score5 yearsPain score will be assessed using visual analogue scale
Blood loss12 monthsPre- and postoperative Hb level

Countries

Russia

Outcome results

None listed

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