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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT04134000
Other study ID # BladderGATE
Secondary ID 2019-002061-36
Status Active, not recruiting
Phase Phase 1
First received
Last updated
Start date February 3, 2020
Est. completion date September 2024

Study information

Verified date May 2024
Source Fundacion Oncosur
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Patients with high-risk non-muscle invasive bladder cancer (NMIBC) are usually managed by transurethral resection of their bladder tumor (TURBT) alone plus additional intravesical therapy to deliver high local concentrations of a therapeutic agent within the bladder, potentially destroying viable tumor cells that remain following TURBT. Although the exact mechanism of bacillus Calmette-Guerin (BCG) antitumor action is unknown, its intravesical instillation triggers a variety of local immune responses, which appear to correlate with antitumor activity. BCG induction plus maintenance is the current, guideline-recommended standard of care for high-risk NMIBC. Both recent evidence and guidelines suggest that full-dose BCG maintenance after the first BCG dose of induction course as used in the SWOG 8507 and European Organization for Research and Treatment of Cancer (EORTC) 30911 and 30962 trials, is the most appropriate maintenance schedule. High-risk NMIBC patients following adequate treatment have a recurrence rate at 1 and 2 years of 25 and 30% respectively after treatment with the current standard (BCG), which is clearly unsatisfactory. Programmed death ligand 1 (PD-L1) is a surface glycoprotein that functions as an inhibitor of T-cells and plays a crucial role in suppression of cellular immune response. It is implicated in tumor immune escape by inducing apoptosis of activated antigen-specific CD8 T-cells, impairing cytokine production and diminishing the toxicity of activated T-cells. PD-L1 expression by immunohistochemistry using the Ventana SP142 assay on tumor-infiltrating immune cell (IC) status defined by the percentage of PD-L1 positive ICs: IC0 (<1%); IC1 (≥1% but<5%); and IC2/3 (≥5%PD-L1) has been demonstrated to be higher (IC2/3) in resection and TURBT specimens versus biopsies from primary lesions or metastatic sites. In patients with metastatic bladder cancer, treatment with the PD-L1 inhibitor atezolizumab (1200 mg, every 3 weeks) resulted in objective response rates of 26% in the IC2/3 group, 18% in the IC1/2/3 group and 15% in all patients. The median overall survival was 11.4 months in the IC2/3 group, 8.8 months in the IC1/2/3, and 7.9 months in all patients. Grade 3-4 related treatment-related adverse events occurred in 16% and grade 3-4 immune-mediated adverse events occurred in 5% of treated patients. In murine models with invasive bladder cancer, anti-PD-1 plus CpG has shown to increase survival in mice, with anti-PD-1 plus CpG being superior to either agent alone. Taken together, these results confirmed the clinical activity of atezolizumab in metastatic bladder cancer, which could be beneficial in patients with NMIBC in combination with standard approaches such as BCG.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 40
Est. completion date September 2024
Est. primary completion date June 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. Patients = 18 years old. 2. Signed Informed Consent Form 3. Histologically confirmed diagnosis of high risk non-muscle-invasive (T1, high grade Ta - G3- and / or carcinoma in situ) transitional cell carcinoma of the bladder 4. Never treated with BCG or stopped >3y ago 5. World Health Organization Performance Status (WHO PS) 0-1 6. No prior radiation to bladder 7. Life expectancy = 5 years 8. Adequate hematologic and end-organ function 9. The time elapsed between the TURBT and the start of the study treatment will not be less than 4 weeks or more than 12 weeks 10. Women who are not postmenopausal or surgically sterile must have a negative serum pregnancy test result within 14 days prior to the first dose of study treatment. 11. For women of childbearing potential: agreement to remain abstinent or use contraceptive methods that result in a failure rate of < 1% per year during the treatment period and for at least 150 days after the last dose of study drug. 12. Tumor tissue biopsy at study entry or availability of an archival specimen obtained within 2 months of study screening 13. Willingness to complete all study-related procedures including patient-reported questionnaires Exclusion Criteria: 1. Muscle-invasive, locally advanced non-resectable, or metastatic urothelial carcinoma (i.e., T2, T3, T4, and/or stage IV) 2. Previous BCG within a 3 years period 3. Life expectancy <5 years 4. WHO PS 2, 3 or 4 5. Known additional malignancy that is progressing or requires active treatment 6. Active autoimmune disease that has required systemic treatment in the past 2 years 7. Evidence of interstitial lung disease or active non-infectious pneumonitis 8. Active infection requiring systemic therapy 9. Pregnant or breastfeeding, or expecting to conceive within the projected duration of the trial through 150 days after the last dose of study treatment. 10. Prior therapy with an anti-programmed cell death 1 (PD-1), anti-PD-ligand 2 (L2) agent, or with an agent directed to another co-inhibitory T-cell receptor 11. Known human immunodeficiency virus (HIV) 12. Known active Hepatitis B or C infection or tuberculosis 13. Received a live virus vaccine within 30 days of planned start of study treatment 14. Treatment with any approved anti-cancer therapy, including chemotherapy , radiation therapy , or hormonal therapy within 3 weeks prior to the first dose of study treatment 15. Treatment with any other investigational agent or participation in another clinical trial with therapeutic intent within 4 weeks prior to the first dose of study treatment 16. Allergy or hypersensitivity to components of the atezolizumab or BCG formulation 17. Prior allogeneic stem cell or solid organ transplantation 18. History of idiopathic pulmonary fibrosis, organizing pneumonia , drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on screening chest CT scan. 19. Serum albumin < 2.5 g/dL 20. Severe infections within 4 weeks prior to the first dose of study treatment 21. Signs or symptoms of infection within 2 weeks prior to the first dose of study treatment 22. Treatment with therapeutic oral or IV antibiotics within 2 weeks prior to the first dose of study treatment 23. Significant cardiovascular disease, such as New York Heart Association cardiac disease (Class II or greater), myocardial infarction within the previous 3 months, unstable arrhythmias, or unstable angina 24. Major surgical procedure other than for diagnosis within 4 weeks prior to the first dose of study treatment, or anticipation of need for a major surgical procedure during the course of the study 25. Any other diseases, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the patient at high risk from treatment complications 26. History of prior systemic BCG infection

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Atezolizumab
1200 mg IV q3w until recurrence of disease, disease progression (e.g., muscle-invasive or metastatic UBC), symptomatic deterioration (i.e., uncontrollable pain secondary to disease or unmanageable ascites, etc.) attributed to disease progression as determined by the investigator, Intolerable toxicity related to atezolizumab, including development of an immune-mediated adverse event determined by the investigator to be unacceptable given the individual patient's potential response to therapy and severity of the event, any medical condition that may jeopardize the patient's safety if he or she continues on study treatment, use of another non-protocol anti-cancer therapy or pregnancy.
BCG
1 or 1/2 instillation per week until recurrence of disease, disease progression (e.g., muscle-invasive or metastatic UBC), symptomatic deterioration (i.e., uncontrollable pain secondary to disease or unmanageable ascites, etc.) attributed to disease progression as determined by the investigator, Intolerable toxicity related to atezolizumab, including development of an immune-mediated adverse event determined by the investigator to be unacceptable given the individual patient's potential response to therapy and severity of the event, any medical condition that may jeopardize the patient's safety if he or she continues on study treatment, use of another non-protocol anti-cancer therapy or pregnancy.

Locations

Country Name City State
Spain Hospital 12 de Octubre Madrid

Sponsors (2)

Lead Sponsor Collaborator
Fundacion Oncosur Apices Soluciones S.L.

Country where clinical trial is conducted

Spain, 

Outcome

Type Measure Description Time frame Safety issue
Primary Dose limiting toxicity (DLT) Incidence and nature of DLT of BCG plus atezolizumab combination in NMIBC, graded according to NCI CTCAE v5. Up to 24 months
Primary Recurrence free survival. Time from the date of start of treatment until the date of objective disease progression or death (by any cause in the absence of progression) regardless of whether the patient withdraws from therapy or receives another anticancer therapy prior to progression according to RECIST 1.1 as assessed by the Investigator Up to 24 months
Secondary Incidence of Treatment-Emergent Adverse Events Incidence of Adverse Events (AEs) per patient Up to 24 months
Secondary Patient reported outcome The change from baseline in patient-reported symptoms, function, and Health-related quality of life (HRQoL), as measured by the EORTC Quality of Life Questionnaire (QLQ)-C30. Up to 24 months
Secondary Patient reported outcome The change from baseline in patient-reported symptoms, function, and HRQoL, as measured by the EORTC Quality of Life Questionnaire (QLQ)-NMIBC24 Up to 24 months
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