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A Study of Endoscopic Cryoablation for Kidney-Sparing Treatment of Upper Tract Urothelial Cancer

Clinical Application of Endoscopic Cryoablation for Kidney-Sparing Treatment of Upper Tract Urothelial Carcinoma: A Multicenter, Prospective, Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600129706
Enrollment
Unknown
Registered
2026-08-07
Start date
2026-08-07
Completion date
Unknown
Last updated
2026-08-10

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

Conditions

Upper tract urothelial carcinoma, including urothelial carcinoma of the renal pelvis, renal calyces, and ureter

Interventions

Holmium Laser Ablation plus Intracavitary Cryoablation Group:Endoscopic Holmium Laser Ablation Combined with Intracavitary Cryoablation
Holmium Laser Ablation Control Group:Endoscopic Holmium Laser Ablation

Sponsors

Huashan Hospital, Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1.Clinically diagnosed ureteral or renal pelvic tumor, with urothelial carcinoma, or a tumor predominantly composed of urothelial carcinoma, confirmed by lesion biopsy or urinary exfoliative cytology within 3 months before screening. 2; 2.No more than two lesions, with the maximum diameter of each lesion not exceeding 3 cm; 3.The participant has a strong preference for kidney-sparing treatment; 4.Male or female participants aged 18 to 80 years; 5.Good general condition, with an Eastern Cooperative Oncology Group performance status of 0–2 and a Karnofsky Performance Status score greater than 40; 6.The participant or the participant’s legally authorized representative is able to understand the study and voluntarily signs the informed consent form;

Exclusion criteria

Exclusion criteria: 1.Preoperative imaging indicates invasion of adjacent organs, the pelvic wall or abdominal wall, corresponding to T3–T4 disease, or the presence of lymph node metastasis (N1–N2) or distant metastasis (M1); 2.The investigator considers that complete lesion ablation cannot be achieved during a single endoscopic procedure, including unresectable concomitant bladder cancer of stage T2 or higher, or lesions located in sites unsuitable for complete endoscopic ablation, such as the lower renal calyx; 3.Receipt of intraluminal chemotherapy, systemic chemotherapy, or immunotherapy within 6 months before enrollment; 4.Presence of severe infectious disease, including bacteremia or toxemia; 5.Decompensated renal insufficiency before surgery, with a glomerular filtration rate below 60 mL/min; 6.Severe coagulation disorder, agranulocytosis, or serious cardiac, cerebral, pulmonary, hepatic, renal, or other disease that makes the participant unable to tolerate surgery or drug treatment; 7.Presence of another malignancy for which treatment was completed less than 2 years previously, except for a prior history of urothelial carcinoma; 8.Severe urethral stenosis, ureteral stenosis, or another condition that prevents or precludes ureteroscopic surgery; 9.Pregnant or breastfeeding women; 10.Positive hepatitis B surface antigen or positive hepatitis C virus antibody; 11.Positive test for human immunodeficiency virus; 12.Presence of a hematologic disorder, including leukemia, lymphoma, myeloma, or myelodysplastic syndrome; 13.Previous bone marrow transplantation, stem cell transplantation, or organ transplantation; 14.Presence of an immunodeficiency disorder or autoimmune disease other than vitiligo; 15.Allergic constitution, particularly a history of hypersensitivity to heterologous proteins; 16.Chronic disease requiring long-term immunosuppressive treatment or systemic corticosteroid therapy, excluding topical or inhaled corticosteroids;

Design outcomes

Primary

MeasureTime frame
3-Month Local Control Rate;

Secondary

MeasureTime frame
2-Year Intravesical Recurrence-Free Survival Rate;3-Month Objective Response Rate;2-Year Recurrence-Free Survival Rate;Incidence of Adverse Events;2-Year Progression-Free Survival Rate;

Countries

China

Contacts

Public ContactHaowen Jiang

Huashan Hospital, Fudan University

urology_hs@163.com+86 21 52887080

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Aug 25, 2026