Clinical Trail of Neoadjuvant of Tislelizumab Combined With Palbociclib in Patients With Platinum-refractory Bladder Urothelial Carcinoma

NCT06364956 · Status: RECRUITING · Phase: PHASE1/PHASE2 · Type: INTERVENTIONAL · Enrollment: 36

Last updated 2025-08-11

No results posted yet for this study

Summary

In order to explore the safety and antitumor efficacy of different doses of CDK4/6 inhibitor Palbociclib in combination with the Tislelizumab in platinum-refractory cT2-4aN0M0 bladder urothelial carcinoma, a phase Ib/II study was conducted.

This study will adopt a 3+3 design and include two predefined dose groups of palbociclib: 100mg QD, 125mg QD. Initially, Tislelizumab, 200 mg administered by intravenous infusion on Day 1 of each 21-day will be administered in combination. The trial will use the first cycle (28 days) as the observation period for tolerability, observing and evaluating the occurrence of DLTs after medication and determining the maximum tolerated dose/maximum administered dose (MTD/MAD) and recommended phase 2 dose (RP2D) of the combination therapy (30 patients) .

This study provide further evidence for improving the efficacy of neoadjuvant treatment forplatinum-refractory cT2-4aN0M0 bladder urothelial carcinoma and to offer new options for precision treatment of bladder cancer.

Conditions

Interventions

DRUG

Tislelizumab combined with two predefined dose groups of palbociclib

Tislelizumab, 200mg q3W, combined with two predefined dose groups of palbociclib: 100mg QD and 125mg QD, separately.

DRUG

RP2D dose Of Tislelizumab combined with palbociclib was selected for phase II clinical trial.

After the exploration of Tislelizumab, 200mg q3W combined with palbociclib, and the maximal tolerated dose (MTD) was determined, then RP2D dose of Tislelizumab combined with palbociclib was selected for phase II clinical trial.

Sponsors & Collaborators

  • Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

    lead OTHER

Principal Investigators

  • Tianxin Lin, Ph.D · Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-05-15
Primary Completion
2026-06-30
Completion
2026-06-30
FDA Drug
Yes

Countries

  • China

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06364956 on ClinicalTrials.gov