Neoadjuvant Tislelizumab + Nab-Paclitaxel Followed by Distal Ureterectomy for Ureteral Cancer

NCT07125547 | Recruiting Phase 2

• 1 other identifier: TRUCE-U01
• Study Type: interventional
• Target: 35
• Locations: 1 country
• Sites: 1

Brief Summary

This study is designed as an open-label, single-arm, single-center, phase II clinical trial, aiming to evaluate the efficacy and safety of neoadjuvant Tislelizumab combined with Nab-Paclitaxel followed by distal ureterectomy for patients with non-metastatic ureteral cancer (UTC). Patients enrolled will receive 2-3 cycles of Tislelizumab in combination with Nab-Paclitaxel every 3 weeks and then undergo distal ureterectomy (DU). The assessment of efficacy is based on the histology of specimen from DU, and treatment-related adverse events (TRAEs) will be recorded and evaluated according to CTCAE 5.0.

Conditions

Ureteral Cancer; Neoadjuvant Therapy; PD-1 Inhibitor; Kidney-sparing; Tislelizumab; Nab-paclitaxel

Outcome Measures

Primary Outcomes (1)

• Pathological Complete Response (pCR)

  Defined as no residual tumor in the specimen from distal ureterectomy.

  At the time of distal ureterectomy completed (within 14 weeks of the treatment initiated)

Secondary Outcomes (8)

• Treatment-related adverse events (TRAEs)

  From neoadjuvant treatment initiation to 90 days after the last cycle of treatment.

• Pathological Downstaging (pDS)

  At the time of distal ureterectomy completed (within 14 weeks of the treatment initiated)

• Objective Response (OR)

  After completion of neoadjuvant therapy and before distal ureterotomy.

• Events-Free Survival (EFS)

  up to 5 years

• Overall Survival (OS)

  up to 5 years

Study Arms (1)

Arm 1

EXPERIMENTAL

Nab-Paclitaxel 125mg/m\^2 IV on day 1 in combination with Tislelizumab 200mg IV on day 1 every 3 weeks for 2-3 cycles and then followed by distal ureterectomy (Distal ureterectomy + Partial cystectomy +Psoas hitch procedure + Ureteral reimplantation into the bladder + Ipsilateral pelvic lymph node dissection).

Drug: PD-1 inhibitior; Drug: Nab-paclitaxel; Procedure: distal ureterectomy

Interventions

PD-1 inhibitior DRUG

Tislelizumab 200mg iv will be administered on Day 1 every 3 weeks for 2-3 cycles.

Arm 1

Nab-paclitaxel DRUG

Nab-Paclitaxel 125mg/m2 IV will be administered on Day 1 every 3 weeks for 2-3 cycles

Arm 1

distal ureterectomy PROCEDURE

Distal ureterectomy (Distal ureterectomy + Partial cystectomy +Psoas hitch procedure + Ureteral reimplantation into the bladder + Ipsilateral pelvic lymph node dissection) will be conducted after neoadjuvant treatment.

Arm 1

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Males or females aged no less than 18 years old;
• Ureteral cancer indicated by ureteroscopic biopsy and imageological examination (including CT, MRI, or PET-CT), without evidences of metastasis in chest CT scan and abdominal CT scan (T1-4N0-2M0).
• Histologically confirmed urothelial carcinoma or urothelial carcinoma as the major pathological component \>50% in the specimen from ureteroscopic biopsy;
• Suitable and planned to receive distal ureterectomy (including distal ureterectomy + partial cystectomy + ipsilateral pelvic lymph node dissection + psoas hitch procedure + ureteral reimplantation into the bladder).
• Expected survival time of more than 12 weeks;
• Eastern Cooperative Oncology Group (ECOG) Performance Status of 0-2;
• Agree to provide blood, urine, and tissue samples (for testing PD-L1 expression, tumor mutation burden, etc.); 7.The organ function levels must meet the following requirements: Hematological indicators: Absolute neutrophil count ≥1.5×10\^9/L, platelet count ≥80×10\^9/L, hemoglobin ≥6.0 g/dL (can be maintained through symptomatic treatment); Liver function: Total bilirubin ≤1.5 times the upper limit of normal, alanine transaminase and aspartate transaminase ≤2.5 times the upper limit of normal; Renal function: Baseline ECT renography indicates a total renal glomerular filtration rate (GFR) ≥15 ml/min, with the affected-side GFR \>10 ml/min, excluding the presence of a non-functional kidney (low-level decreasing curve on dynamic renal ECT imaging) on the affected side.
• Participants are willing to join the study and be able to sign and comply the protocol.

You may not qualify if:

• Concurrent primary malignancies in other sites are excluded, except for those with a history of other malignancies that have been treated and are currently stable.
• Confirmed bilateral upper tract urothelial carcinoma (UTUC).
• Presence of urothelial carcinoma in the renal pelvis or bladder is excluded, except for non-muscle-invasive bladder cancer that can be completely resected via transurethral resection of bladder tumor (TURBT).
• Received a live attenuated vaccine within 4 weeks before treatment or plan to receive during the study period;
• Active, known or suspected history of autoimmune disease;
• Known history of primary immunodeficiency;
• Known history of allogeneic organ transplantation and allogeneic hematopoietic stem cell transplantation;
• Pregnant or breastfeeding female patients;
• Untreated acute or chronic active Hepatitis B or Hepatitis C infection. Patients receiving antiviral therapy may be eligible if viral load is under monitored, at the discretion of the physician based on the patient's individual condition;
• Receiving immunosuppressive medication within 4 weeks prior to starting treatment, except nasal, inhaled, topical steroids, or systemic corticosteroids at physiological doses (i.e., not exceeding 10 mg/day of prednisone or equivalent dose of other corticosteroids);
• Known or suspected allergy to Tislelizumab or Nab-Paclitaxel;
• Active tuberculosis;
• Previous treatment with PD-1/PD-L1/CTLA-4 immune checkpoint inhibitors or other immunotherapies;
• Participation in another clinical study;
• Fertile men or women without effective contraception;

Sponsors & Collaborators

• Tianjin Medical University Second Hospital: lead

Study Sites (1)

The Second Hospital of Tianjin Medical University

Tianjin, Outside U.S., 300211, China

RECRUITING

MeSH Terms

Conditions

Ureteral Neoplasms

Interventions

130-nm albumin-bound paclitaxel

Condition Hierarchy (Ancestors)

Urologic Neoplasms; Urogenital Neoplasms; Neoplasms by Site; Neoplasms; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Ureteral Diseases; Urologic Diseases; Male Urogenital Diseases

Central Study Contacts

Hailong Hu, PhD

CONTACT

+86 13662096232; Huhailong@tmu.edu.cn

Study Design

• Study Type: interventional
• Phase: phase 2
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: August 9, 2025
• First Posted: August 15, 2025
• Study Start: July 5, 2025
• Primary Completion (Estimated): December 30, 2026
• Study Completion (Estimated): December 30, 2030
• Last Updated: August 15, 2025

Record last verified: 2025-04

Locations

CN (1)