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Efficacy Study of Recombinant Adenovirus for Non Muscle Invasive Bladder Cancer (BOND)

Primary Purpose

Transitional Cell Carcinoma, Bladder Cancer, Carcinoma in Situ

Status
Terminated
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
CG0070 Adenovirus Vector
Control Arm: Quadruple Choice
Sponsored by
CG Oncology, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Transitional Cell Carcinoma focused on measuring cancer, bladder cancer, transitional cell, virus, oncolytic, GM-CSF, adenovirus, intravesical, neoadjuvant, cystectomy, gene therapy, oncolytic virus, carcinoma in situ, carcinoma in situ concurrent with papillary tumors

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Patients must be considered high risk, with pathologically confirmed high grade disease (HG) WHO 2004
  2. Patients must have pathologically-proven unresectable, primary, secondary or concurrent carcinoma in situ disease, defined by having either Ta and/or T1 with CIS, or CIS
  3. Patients must have no evidence of muscle invasive disease
  4. Patient need to sign a specific informed consent acknowledging that a delay of cystectomy may lead to an increase chance of progression and/or metastasis with serious or sometimes fatal consequences.
  5. Patients must have received at least two or more prior courses of intravesical therapy. BCG must have been one of the prior therapies administered. Patients can have either failed BCG induction therapy within a six month period or have been successfully treated with BCG, but subsequently found to have recurrence. The standard course of intravesical therapy must include six weekly treatments (allowable range of instillations per course is 4-9). The second course of BCG can consist of three weekly treatments
  6. 18 years of age or older
  7. Residual disease at accrual
  8. Pathologically diagnosed transitional cell (urothelial) bladder cancer (further details in 10.) patients where radical cystectomy with curative intent is indicated for superficial bladder cancer that is resistant to treatment.
  9. Patients must be able to enter into the study within five weeks of their most recent diagnostic procedure, which is usually a diagnostic biopsy, a transurethral resection of bladder tumor (TURBT) procedure or other diagnostic scanning such as CT and PET procedures.
  10. Histopathologically confirmed, transitional cell (urothelial) carcinoma. Urothelial tumors with mixed histology (but with <50% variant) are eligible.
  11. No evidence of urethral or renal pelvis TCC by upper tract radiological imaging (e.g., intravenous pyelogram, CT urogram, or retrograde pyelogram) within the past 2 years.
  12. Eastern Cooperative Oncology Group (ECOG) performance status <2.
  13. Not pregnant or lactating
  14. Patients with child bearing potential must agree to use adequate contraception
  15. Agree to study specific informed consent and HIPAA authorization for release of personal health information
  16. Adequate baseline CBC, renal and hepatic function. Renal parameters as detailed above. Absolute lymphocyte count ≥ 1,000/μL before all doses of CG0070
  17. Patient to provide a tumor specimen for determination of RB pathway status

Exclusion Criteria:

  1. Previous systemic chemotherapy or radiation for bladder cancer. Note: Prior immunotherapy or intravesical (administered within the bladder) chemotherapy for superficial disease is acceptable
  2. No bladder cancer residual disease, such as patients that are rendered disease free by TURBT
  3. History of anaphylactic reaction following exposure to humanized or human therapeutic monoclonal antibodies, hypersensitivity to GM-CSF or yeast derived products, clinically meaningful allergic reactions or any known hypersensitivity or prior reaction to any of the formulation excipients in the study drugs.
  4. Known infection with HIV, HBV or HCV.
  5. Anticipated use of chemotherapy, radiotherapy, or other immunotherapy not specified in the study protocol while on study
  6. Any underlying medical condition that, in the Investigator's opinion, will make the administration of study vaccine hazardous to the patient, would obscure the interpretation of adverse events, or surgical resection. Anticipated use of chemotherapy, radiotherapy, or other immunotherapy not specified in the study protocol while on study
  7. Systemic treatment on any investigational clinical trial within 28 days prior to registration.
  8. Concurrent treatment with immunosuppressive or immunomodulatory agents, including any systemic steroid (exception: inhaled or topically applied steroids, and acute and chronic standard dose NSAIDs, are permitted). Use of a short course (i.e., ≤ 1 day) of a glucocorticoid is acceptable to prevent a reaction to the IV contrast used for CT scans.
  9. Immunosuppressive therapy, including: cyclosporine, antithymocyte globulin, or tacrolimus within 3 months of study entry.
  10. History of prior experimental cancer vaccine treatment (e.g., dendritic cell therapy, heat shock vaccine)
  11. History of partial cystectomy in the setting of bladder cancer primary tumor.
  12. History of anaphylactic reaction following exposure to humanized or human therapeutic monoclonal antibodies, hypersensitivity to GM-CSF or yeast derived products, clinically meaningful allergic reactions or any known hypersensitivity or prior reaction to any of the formulation excipients in the study drugs.
  13. History of stage III or greater cancer, excluding urothelial cancer. Basal or squamous cell skin cancers must have been adequately treated and the subject must be disease-free at the time of registration. Subjects with a history of stage I or II cancer, must have been adequately treated and have been disease-free for ≥ 3 years at the time of registration.
  14. Concomitant active autoimmune disease (e.g., rheumatoid arthritis, multiple sclerosis, autoimmune thyroid disease, uveitis)
  15. Progressive viral or bacterial infection
  16. All infections must be resolved and the patient must remain afebrile for seven days without antibiotics prior to being placed on study
  17. Any underlying medical condition that, in the Investigator's opinion, will make the administration of study vaccine hazardous to the patient, would obscure the interpretation of adverse events, or not permit adequate surgical resection.
  18. Unwilling or unable to comply with the protocol or cooperate fully with the investigator and site personnel

Sites / Locations

  • BCG Oncology
  • University of California, San Diego- Moores Cancer Center
  • UCLA Institute of Urological Oncology
  • University of California, Davis- Cancer Center
  • University of Chicago, Department of Surgery, Section of Urology
  • Wake Forest University Health Sciences
  • Vanderbilt University Medical Center Department of Urologic Surgery

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

CG0070 oncolytic virus

Chemotherapy or Interferon

Arm Description

Interventions: CG0070 oncolytic virus intravesical instillations weekly X6 with each instillation lasting 45 minutes after prior transduction agent of DDM intravesically for 15 minutes

Quadruple Choice as interventions Mitomycin C Interferon Valrubicin Gemcitabine

Outcomes

Primary Outcome Measures

Complete Response Proportion (CR)
'CR' Proportion is confirmed by negative biopsy, cystoscopy, cytology weekly times 2 with the first assessment three months after first intravesical treatment and then assessed again at 9 month. Two consecutive positive urine cytologies to confirm a persistent or recurrent disease if visual and biopsy is negative. Random biopsy mandatory at the first assessment in the trigone, bladder dome, right, left , anterior and posterior of the bladder wall.
Durable Complete Response Proportion (DCR)
DCR proportion of DCR lasting 12 months or longer will be conducted after a follow up period of 15 months for each patient. The first complete response assessment will be at 3 month.

Secondary Outcome Measures

Progression rate to muscle invasive disease
The Progression rate to muscle invasive disease rate is based on analysis from comparing disease status at the time of enrollment versus disease status (for those patients with muscle invasion) at the time of cystectomy or TURBT
Complete Response Survival
The Complete Response Survival time to events of patients who have achieved a complete response at the 3 month assessment will be compared with a log rank test.
Safety Events
The number and percentage of patients experiencing one or more adverse events will be summarized by relationship to study drug, and severity.
Cystectomy Free Survival
The Cystectomy Free Survival time to events of patients will be compared with a log rank test.

Full Information

First Posted
September 19, 2011
Last Updated
April 12, 2021
Sponsor
CG Oncology, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT01438112
Brief Title
Efficacy Study of Recombinant Adenovirus for Non Muscle Invasive Bladder Cancer
Acronym
BOND
Official Title
An Integrated Phase II/III, Open Label, Randomized and Controlled Study of the Safety and Efficacy of CG0070 Adenovirus Vector Expressing GM-CSF in Patients With NMIBC With Carcinoma In Situ Disease Who Have Failed BCG
Study Type
Interventional

2. Study Status

Record Verification Date
April 2021
Overall Recruitment Status
Terminated
Why Stopped
Change in study design
Study Start Date
March 2014 (undefined)
Primary Completion Date
June 2016 (Actual)
Study Completion Date
June 2016 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
CG Oncology, Inc.

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The use of a designed viral vector that can destroy cancer cells while leaving normal cells largely unharmed. The virus also stimulates an immunological response by producing a special factor (GM-CSF) to attract and promote the development of dendritic and T effector cells. It forms the hypothesis that this regimen may be used for people who have failed current forms of treatment and are recommended for cystectomy. It is with hope that this novel therapy will be able to delay or potentially avoid cystectomy for this patient population. Bladder instillation of this agent causes little long lasting side effects and may drastically improve the stimulation of the immune system for local cancer cell death as well as destroying those tumor cells that may have travelled to regional lymph nodes or distant organs.
Detailed Description
After the phase I/II CG0070 trial review, it became apparent that the use of CG0070 oncolytic vaccine as an intravesical agent for oncolytic lysis of tumor cells, together with the transcription of GM-CSF on site, may have distinct advantages. This first study showed excellent tumor response rates of 48-77% depending on the dose schedule administered. All of these patients had residual non-muscle invasive bladder cancer who have previously failed BCG therapy at the time of treatment. With the addition of a transduction agent such as DDM, the intravesical instillation of CG0070 enabled uniform distribution of viral particles and exposure to the tumor during those 30-60 minutes instillations as contrast to the intra-tumor injection, intra-arterial or intravenous injection of viral particles in other oncolytic viral trials. Some or most of these delivering methodologies have obvious intrinsic imperfections and potential toxicity. This unique opportunity of an relatively easy intravesical tumor exposure is difficult to duplicate in other solid tumor models. The replication of CG0070 in the majority of patients during the first phase I/II trial indicated tumor lysis with release of tumor specific or tumor associated antigens that have been stably expressed, in abundant quantities during tumor cell death. Release of tumor antigens have been the key elements, together with sufficient on-site GM-CSF, in stimulating strong cross-presentation and confirmation signals to the antigen presenting cells such as dendritic cells interacting with CD4+ and CD8+ T cells. This concept of a "real time" vaccine like regimen is expected to compare favorably with other forms of cancer immunotherapy treatment such as BCG in this patient population. It is with this thought that CG0070 may find a success in this setting because of a reasonably and proven complete response rate in residual and failed BCG bladder cancer patients in the first phase I/II study (some cases with only one instillation). Of importance as well, is the demonstration in the study data of a strong GM-CSF expression during its replication phase. Those patients with carcinoma in situ disease and those with RB pathway dysfunction were particularly responsive. It is therefore, desirable to formulate a protocol to encompass the specialty of this oncolytic vaccine and the unique intravesical delivery to prove the efficacy by a randomized controlled study. This opportunity allows a study on the CG0070's beneficial effects, if any, on the standard of care for carcinoma in situ non muscle invasive bladder cancer patients after they failed BCG therapy. The prognosis of this group presently depends mainly on early radical cystectomy, which carries a high morbidity and decrease of quality of life generally viewed as unacceptable for this group of older patients.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Transitional Cell Carcinoma, Bladder Cancer, Carcinoma in Situ, Carcinoma in Situ Concurrent With Papillary Tumors
Keywords
cancer, bladder cancer, transitional cell, virus, oncolytic, GM-CSF, adenovirus, intravesical, neoadjuvant, cystectomy, gene therapy, oncolytic virus, carcinoma in situ, carcinoma in situ concurrent with papillary tumors

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2, Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
22 (Actual)

8. Arms, Groups, and Interventions

Arm Title
CG0070 oncolytic virus
Arm Type
Experimental
Arm Description
Interventions: CG0070 oncolytic virus intravesical instillations weekly X6 with each instillation lasting 45 minutes after prior transduction agent of DDM intravesically for 15 minutes
Arm Title
Chemotherapy or Interferon
Arm Type
Active Comparator
Arm Description
Quadruple Choice as interventions Mitomycin C Interferon Valrubicin Gemcitabine
Intervention Type
Biological
Intervention Name(s)
CG0070 Adenovirus Vector
Other Intervention Name(s)
oncolytic virus, CG0070, GM-CSF expression, adenoviral vector
Intervention Description
CG0070 adenoviral vector with GM-CSF expression given intravesically 1x10e12 viral particles for each instillations, weekly times six
Intervention Type
Other
Intervention Name(s)
Control Arm: Quadruple Choice
Other Intervention Name(s)
Mitomycin C, Interferon, Valrubicin, Gemcitabine
Intervention Description
Quadruple Choice Treatment Options: (same as listed above)
Primary Outcome Measure Information:
Title
Complete Response Proportion (CR)
Description
'CR' Proportion is confirmed by negative biopsy, cystoscopy, cytology weekly times 2 with the first assessment three months after first intravesical treatment and then assessed again at 9 month. Two consecutive positive urine cytologies to confirm a persistent or recurrent disease if visual and biopsy is negative. Random biopsy mandatory at the first assessment in the trigone, bladder dome, right, left , anterior and posterior of the bladder wall.
Time Frame
9 months (Phase II)
Title
Durable Complete Response Proportion (DCR)
Description
DCR proportion of DCR lasting 12 months or longer will be conducted after a follow up period of 15 months for each patient. The first complete response assessment will be at 3 month.
Time Frame
15 months (Phase III)
Secondary Outcome Measure Information:
Title
Progression rate to muscle invasive disease
Description
The Progression rate to muscle invasive disease rate is based on analysis from comparing disease status at the time of enrollment versus disease status (for those patients with muscle invasion) at the time of cystectomy or TURBT
Time Frame
Throughout the study with expected average of 12 months
Title
Complete Response Survival
Description
The Complete Response Survival time to events of patients who have achieved a complete response at the 3 month assessment will be compared with a log rank test.
Time Frame
15 months
Title
Safety Events
Description
The number and percentage of patients experiencing one or more adverse events will be summarized by relationship to study drug, and severity.
Time Frame
Expected average of two years throughout the study
Title
Cystectomy Free Survival
Description
The Cystectomy Free Survival time to events of patients will be compared with a log rank test.
Time Frame
15 month

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients must be considered high risk, with pathologically confirmed high grade disease (HG) WHO 2004 Patients must have pathologically-proven unresectable, primary, secondary or concurrent carcinoma in situ disease, defined by having either Ta and/or T1 with CIS, or CIS Patients must have no evidence of muscle invasive disease Patient need to sign a specific informed consent acknowledging that a delay of cystectomy may lead to an increase chance of progression and/or metastasis with serious or sometimes fatal consequences. Patients must have received at least two or more prior courses of intravesical therapy. BCG must have been one of the prior therapies administered. Patients can have either failed BCG induction therapy within a six month period or have been successfully treated with BCG, but subsequently found to have recurrence. The standard course of intravesical therapy must include six weekly treatments (allowable range of instillations per course is 4-9). The second course of BCG can consist of three weekly treatments 18 years of age or older Residual disease at accrual Pathologically diagnosed transitional cell (urothelial) bladder cancer (further details in 10.) patients where radical cystectomy with curative intent is indicated for superficial bladder cancer that is resistant to treatment. Patients must be able to enter into the study within five weeks of their most recent diagnostic procedure, which is usually a diagnostic biopsy, a transurethral resection of bladder tumor (TURBT) procedure or other diagnostic scanning such as CT and PET procedures. Histopathologically confirmed, transitional cell (urothelial) carcinoma. Urothelial tumors with mixed histology (but with <50% variant) are eligible. No evidence of urethral or renal pelvis TCC by upper tract radiological imaging (e.g., intravenous pyelogram, CT urogram, or retrograde pyelogram) within the past 2 years. Eastern Cooperative Oncology Group (ECOG) performance status <2. Not pregnant or lactating Patients with child bearing potential must agree to use adequate contraception Agree to study specific informed consent and HIPAA authorization for release of personal health information Adequate baseline CBC, renal and hepatic function. Renal parameters as detailed above. Absolute lymphocyte count ≥ 1,000/μL before all doses of CG0070 Patient to provide a tumor specimen for determination of RB pathway status Exclusion Criteria: Previous systemic chemotherapy or radiation for bladder cancer. Note: Prior immunotherapy or intravesical (administered within the bladder) chemotherapy for superficial disease is acceptable No bladder cancer residual disease, such as patients that are rendered disease free by TURBT History of anaphylactic reaction following exposure to humanized or human therapeutic monoclonal antibodies, hypersensitivity to GM-CSF or yeast derived products, clinically meaningful allergic reactions or any known hypersensitivity or prior reaction to any of the formulation excipients in the study drugs. Known infection with HIV, HBV or HCV. Anticipated use of chemotherapy, radiotherapy, or other immunotherapy not specified in the study protocol while on study Any underlying medical condition that, in the Investigator's opinion, will make the administration of study vaccine hazardous to the patient, would obscure the interpretation of adverse events, or surgical resection. Anticipated use of chemotherapy, radiotherapy, or other immunotherapy not specified in the study protocol while on study Systemic treatment on any investigational clinical trial within 28 days prior to registration. Concurrent treatment with immunosuppressive or immunomodulatory agents, including any systemic steroid (exception: inhaled or topically applied steroids, and acute and chronic standard dose NSAIDs, are permitted). Use of a short course (i.e., ≤ 1 day) of a glucocorticoid is acceptable to prevent a reaction to the IV contrast used for CT scans. Immunosuppressive therapy, including: cyclosporine, antithymocyte globulin, or tacrolimus within 3 months of study entry. History of prior experimental cancer vaccine treatment (e.g., dendritic cell therapy, heat shock vaccine) History of partial cystectomy in the setting of bladder cancer primary tumor. History of anaphylactic reaction following exposure to humanized or human therapeutic monoclonal antibodies, hypersensitivity to GM-CSF or yeast derived products, clinically meaningful allergic reactions or any known hypersensitivity or prior reaction to any of the formulation excipients in the study drugs. History of stage III or greater cancer, excluding urothelial cancer. Basal or squamous cell skin cancers must have been adequately treated and the subject must be disease-free at the time of registration. Subjects with a history of stage I or II cancer, must have been adequately treated and have been disease-free for ≥ 3 years at the time of registration. Concomitant active autoimmune disease (e.g., rheumatoid arthritis, multiple sclerosis, autoimmune thyroid disease, uveitis) Progressive viral or bacterial infection All infections must be resolved and the patient must remain afebrile for seven days without antibiotics prior to being placed on study Any underlying medical condition that, in the Investigator's opinion, will make the administration of study vaccine hazardous to the patient, would obscure the interpretation of adverse events, or not permit adequate surgical resection. Unwilling or unable to comply with the protocol or cooperate fully with the investigator and site personnel
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Alex W Yeung, MBBS
Organizational Affiliation
CG Oncology, Inc.
Official's Role
Study Chair
Facility Information:
Facility Name
BCG Oncology
City
Phoenix
State/Province
Arizona
ZIP/Postal Code
85032-2129
Country
United States
Facility Name
University of California, San Diego- Moores Cancer Center
City
La Jolla
State/Province
California
ZIP/Postal Code
92093
Country
United States
Facility Name
UCLA Institute of Urological Oncology
City
Los Angeles
State/Province
California
ZIP/Postal Code
90024
Country
United States
Facility Name
University of California, Davis- Cancer Center
City
Sacramento
State/Province
California
ZIP/Postal Code
95817
Country
United States
Facility Name
University of Chicago, Department of Surgery, Section of Urology
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60637
Country
United States
Facility Name
Wake Forest University Health Sciences
City
Winston-Salem
State/Province
North Carolina
ZIP/Postal Code
27157
Country
United States
Facility Name
Vanderbilt University Medical Center Department of Urologic Surgery
City
Nashville
State/Province
Tennessee
ZIP/Postal Code
37232
Country
United States

12. IPD Sharing Statement

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Efficacy Study of Recombinant Adenovirus for Non Muscle Invasive Bladder Cancer

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