CHASIT
EU CTIS ID: 2024-516940-24-00
What this study is testing
To demonstrate the benefit of sequential chemo-immunotherapy in increasing the number of patients reaching a pathological complete response (pCR) at radical surgery in patients with locally advanced irresectable (stage cT4bNxM0) or clinically node-positive (stage cTxN1-N3M0) UC whose disease did not progress on or following completion of platinum-containing chemotherapy.
- Therapeutic exploratory (Phase II)
A plain-language read of the study's public EU CTIS listing. The study team confirms the details.
Who can take part
You may be able to join if
- Age ≥ 18 years.
- Adequate renal function, defined as estimated creatinine clearance ≥30 mL/min as calculated by the CKD-EPI eGFR.
- Adequate liver function, including: a. Total serum bilirubin <1.5 x upper limit of normal (ULN); b. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) <2.5 x ULN.
- Have histologically confirmed urothelial carcinoma of the bladder, upper urinary tract or urethra; a maximum of 50% of aberrant histology is allowed.
- Have clinical stage cT4bNxM0 or cTxN1-N3M0 as assessed by bimanual examination under anaesthesia, CT scan, MRI scan or PET-CT scan.
- Have at least stable disease after a minimum of 3 or a maximum of 4 cycles of induction chemotherapy with cisplatin / carboplatin + gemcitabine according to RECIST v1.1.
You likely can't join if
- Predominant (>50%) non-urothelial carcinoma histology in the diagnostic endoresection specimen of the bladder, urethra or upper urinary tract.
- Current use of immunosuppressive medication, EXCEPT the following: a. Intranasal, inhaled, topical steroids, or local steroid injections (eg, intra-articular injection); b. Systemic corticosteroids at (equivalent) doses of maximum 10 mg prednisone; c. Steroids as premedication for hypersensitivity reactions (eg, CT scan premedication).
- Diagnosis of prior immunodeficiency or organ transplant requiring immunosuppressive therapy, or known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness.
- Any test for hepatitis B virus (HBV) or hepatitis C virus (HCV) indicating acute or chronic infection.
- Vaccination within 4 weeks of the first dose of study treatment and while on trial is prohibited except for administration of inactivate vaccines (for example, inactivated influenza vaccines) or mRNA vaccines (for example, COVID-19 vaccines).
- Have an estimated creatinin clearance as assessed by the CKD-EPI eGFR of <30 ml/min.
See the full eligibility criteria
- Age ≥ 18 years.
- Adequate renal function, defined as estimated creatinine clearance ≥30 mL/min as calculated by the CKD-EPI eGFR.
- Adequate liver function, including: a. Total serum bilirubin <1.5 x upper limit of normal (ULN); b. Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) <2.5 x ULN.
- Have histologically confirmed urothelial carcinoma of the bladder, upper urinary tract or urethra; a maximum of 50% of aberrant histology is allowed.
- Have clinical stage cT4bNxM0 or cTxN1-N3M0 as assessed by bimanual examination under anaesthesia, CT scan, MRI scan or PET-CT scan.
- Have at least stable disease after a minimum of 3 or a maximum of 4 cycles of induction chemotherapy with cisplatin / carboplatin + gemcitabine according to RECIST v1.1.
- Are fit and willing to undergo radical surgery with removal of lymph node template including all affected lymph nodes and the primary tumor.
- World Health Organisation performance status of 0-2.
- Provide written informed consent.
- Negative pregnancy test in women with childbearing potential.
- Adequate bone marrow function, including: a. Absolute neutrophil count (ANC) ≥1,500/mm3 or 1.5 x 109/L; b. Platelets ≥100 x 109/L; c. Hemoglobin ≥5.6 mmol/L (may have been transfused).
- Predominant (>50%) non-urothelial carcinoma histology in the diagnostic endoresection specimen of the bladder, urethra or upper urinary tract.
- Current use of immunosuppressive medication, EXCEPT the following: a. Intranasal, inhaled, topical steroids, or local steroid injections (eg, intra-articular injection); b. Systemic corticosteroids at (equivalent) doses of maximum 10 mg prednisone; c. Steroids as premedication for hypersensitivity reactions (eg, CT scan premedication).
- Diagnosis of prior immunodeficiency or organ transplant requiring immunosuppressive therapy, or known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness.
- Any test for hepatitis B virus (HBV) or hepatitis C virus (HCV) indicating acute or chronic infection.
- Vaccination within 4 weeks of the first dose of study treatment and while on trial is prohibited except for administration of inactivate vaccines (for example, inactivated influenza vaccines) or mRNA vaccines (for example, COVID-19 vaccines).
- Have an estimated creatinin clearance as assessed by the CKD-EPI eGFR of <30 ml/min.
- Prior exposure to immune-mediated therapy with exclusion of Bacillus-Calmette Guérin intravesical instillations, including but not limited to other anti-CTLA-4, anti PD1, anti PD-L1, or anti-PD-L2 antibodies.
- Persisting toxicity related to prior chemotherapy (Grade >2 NCI CTCAE v5.0).
- A diagnosis of any other malignancy within 2 years prior to inclusion, except for adequately treated basal cell or squamous cell skin cancer or carcinoma in situ of the breast or of the cervix, low grade prostate cancer on surveillance without any plans for treatment intervention, or prostate cancer that has been adequately treated with prostatectomy or radiotherapy and currently with no evidence of disease.
- ≤2 cycles of induction platinum-based chemotherapy received.
- Progression of disease during or following induction platinum-based chemotherapy, as assessed by RECIST v1.1.
- Previous pelvic radiation therapy.
- Distant metastatic disease.
- Other severe acute or chronic medical conditions including colitis, inflammatory bowel disease, and pneumonitis; psychiatric condition including recent (within the past year) or active suicidal ideation or behaviour; or laboratory abnormality that may increase the risk associated with study participation or study treatment administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for entry into this study.
- Breastfeeding women.
- Bilateral upper urinary tract urothelial carcinoma.
- Active autoimmune disease that might deteriorate when receiving an immunostimulatory agent. Patients with diabetes type I, vitiligo, psoriasis, or hypo- or hyperthyroid disease not requiring immunosuppressive treatment are eligible.
- Any of the following in the previous 6 months: myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident, transient ischemic attack or symptomatic pulmonary embolism.
- Active infection requiring systemic therapy.
- Known severe hypersensitivity reactions to monoclonal antibodies (Grade 3), any history of anaphylaxis, or uncontrolled asthma (ie, 3 or more features of asthma symptom control per the Global Initiative for Asthma 2015).
- Known prior or suspected hypersensitivity to avelumab.
The study team makes the final eligibility decision.
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 18-64 years, 65+ years. The study team makes the final eligibility decision.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from EU CTIS; the study team decides eligibility.