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NCT03528694 · CITED IN SOURCE DOCUMENTS

Assessment of Efficacy and Safety of Durvalumab Plus BCG Compared to the Standard Therapy With BCG in Non-muscle Invasive Bladder Cancer

An NCI or FDA source cites this study. A citation does not establish that it applies to an individual diagnosis.

Phase
PHASE3
Status at capture
ACTIVE NOT RECRUITING
Registry last update
2026-07-07

This is a randomized, open-label, multi-center, global, phase III study to determine the efficacy and safety of Durvalumab + BCG combination therapy in the treatment of patients with non-muscle-invasive bladder cancer

Open the original ClinicalTrials.gov record → · Download preserved record

What did the study report?

Outcomes, safety and baseline populations are separate source sections. Quality-of-life measures appear under their original outcome titles.

No posted result sections were captured. Registered plans do not establish that a treatment works.

Who could take part
eligibility Criteria
Inclusion Criteria: For inclusion in the study, patients should fulfill the following criteria: * Aged at least 18 years * BCG-naïve (patients who have not received prior intravesical BCG or who previously received but stopped BCG more than 3 years before study entry are eligible) * Local histological confirmation (based on pathology report) of high-risk transitional cell carcinoma of the urothelium of the urinary bladder confined to the mucosa or submucosa. A high risk tumor is defined as one of the following * T1 tumor * High grade/ G3 tumor * CIS * Multiple and recurrent and large (with diameter of largest tumor ≥3 cm) tumors (all conditions must be met in this point) * Complete resection of all Ta/T1 papillary disease prior to randomization, with the TURBT removing high-risk NMIBC performed not more than 4 months before randomization in the study. Patients with residual CIS after TURBT are eligible * No prior radiotherapy for bladder cancer * No prior exposure to immune-mediated therapy of cancer including, but not limited to, other anti CTLA-4, anti-PD-1, anti-PD-L1, and anti-programmed cell death ligand 2 antibodies. Patients who have been treated with anticancer vaccines will be excluded Exclusion Criteria: Patients should not enter the study if any of the following exclusion criteria are fulfilled: * Evidence of muscle-invasive, locally advanced, metastatic, and/or extra vesical bladder cancer (ie, T2, T3, T4, and / or stage IV) * Concurrent extravesical (ie, urethra, ureter, or renal pelvis), non-muscle-invasive transitional cell carcinoma of the urothelium * Previous investigational product (IP) assignment in the present study * Any concurrent chemotherapy, IP, biologic, or hormonal therapy for cancer treatment. Concurrent use of hormonal therapy for noncancer related conditions (eg, hormone replacement therapy) is acceptable. Chemotherapy for previous instances of NMIBC is acceptable. * Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease \[eg, colitis or Crohn's disease\], diverticulitis \[with the exception of diverticulosis\], systemic lupus erythematosus, Sarcoidosis syndrome, or Wegener syndrome \[granulomatosis with polyangiitis, Graves' disease, rheumatoid arthritis, hypophysitis, uveitis, etc\]). The following are exceptions to this criterion: * Patients with vitiligo or alopecia * Patients with hypothyroidism (e.g., following Hashimoto syndrome) stable on hormone replacement * Any chronic skin condition that does not require systemic therapy * Patients without active disease in the last 5 years may be included but only after consultation with the Study Physician * Patients with celiac disease controlled by diet alone * History of another primary malignancy except for * Malignancy treated with curative intent and with no known active disease ≥ 2 years before the first dose of IP and of low potential risk for recurrence during the study period * Adequately treated nonmelanoma skin cancer or lentigo maligna withoutevidence of disease * Adequately treated CIS without evidence of disease * Prostate cancer (tumor/node/metastasis stage) of stage ≤ T2cN0M0 without biochemical recurrence or progression that in the opinion of the Investigator does not require active intervention * Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab. The following are exceptions to this criterion: * Intranasal, inhaled, topical steroids, or local steroid injections (eg, intra articular injection) * Systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or its equivalent * Steroids as premedication for hypersensitivity reactions (eg, computed tomography \[CT\] scan premedication)
healthy Volunteers
false
maximum Age
130 Years
minimum Age
18 Years
sex
ALL
std Ages
  1. ADULT
  2. OLDER_ADULT
Treatment arms and interventions
arm Groups
  1. description
    Durvalumab (MEDI4736) plus Bacillus Calmette-Guerrin (BCG) combination therapy
    intervention Names
    1. Biological: Durvalumab (MEDI4736)
    2. Biological: Bacillus Calmette-Guerin (BCG)
    label
    Durvalumab plus BCG (induction + maintenance)
    type
    EXPERIMENTAL
  2. description
    Durvalumab (MEDI4736) plus Bacillus Calmette-Guerrin (BCG) combination therapy
    intervention Names
    1. Biological: Durvalumab (MEDI4736)
    2. Biological: Bacillus Calmette-Guerin (BCG)
    label
    Durvalumab plus BCG (induction only)
    type
    EXPERIMENTAL
  3. description
    Bacillus Calmette-Guerrin (BCG) standard of care treatment
    intervention Names
    1. Biological: Bacillus Calmette-Guerin (BCG)
    label
    BCG treatment (Standard of care therapy)
    type
    ACTIVE_COMPARATOR
interventions
  1. arm Group Labels
    1. Durvalumab plus BCG (induction + maintenance)
    2. Durvalumab plus BCG (induction only)
    description
    Investigational product
    name
    Durvalumab (MEDI4736)
    type
    BIOLOGICAL
  2. arm Group Labels
    1. BCG treatment (Standard of care therapy)
    2. Durvalumab plus BCG (induction + maintenance)
    3. Durvalumab plus BCG (induction only)
    description
    Standard of care
    name
    Bacillus Calmette-Guerin (BCG)
    type
    BIOLOGICAL
Study design
allocation
RANDOMIZED
intervention Model
PARALLEL
masking Info
masking
NONE
primary Purpose
TREATMENT
Enrollment
count
1018
type
ACTUAL
Registered outcome plans (not posted results)
primary Outcomes
  1. description
    Disease-free survival using Investigator disease assessments.
    measure
    The efficacy of Durvalumab + BCG (induction plus maintenance) combination therapy compared to SoC in terms of Disease free survival (DFS) in patients with NMIBC
    time Frame
    Up to 4 years
secondary Outcomes
  1. description
    Proportion of patients alive and disease free at 24 months using Investigator disease assessments. DFS24 is defined as the proportion of patients alive and disease-free at 24 months after randomization, per Investigator disease assessment.
    measure
    To assess the efficacy of durvalumab + BCG (induction and maintenance) combination therapy compared to BCG (induction and maintenance) alone in terms of DFS 24 months
    time Frame
    Up to 4 years
  2. description
    Overall survival at 5 years. Overall survival (OS) is defined as the time from the date of randomization until death due to any cause regardless of whether the patient withdraws from randomized therapy or receives another anti-cancer therapy (i.e. date of death or censoring - date of randomization +1). Any patient not known to have died at the time of analysis will be censored based on the last recorded date on which the patient was known to be alive
    measure
    To assess the efficacy of durvalumab + BCG (induction and maintenance) combination therapy compared to BCG (induction and maintenance) alone in terms of OS5
    time Frame
    Up to 7 years
  3. description
    Any disease-free survival using Investigator disease assessments. Any disease-free survival (aDFS) is defined similarly as DFS, except that aDFS includes recurrence of low/medium risk NMIBC. This will be based on Investigator disease assessments.
    measure
    To assess the efficacy of durvalumab + BCG (induction and maintenance) combination therapy compared to BCG (induction and maintenance) alone in terms of any disease-free survival
    time Frame
    Up to 7 years
  4. description
    Time to MIBC and/or metastatic disease using Investigator disease assessments. Time to MIBC and/or metastatic disease is defined as the time from the date of randomization until the date of first documented MIBC and/or metastatic disease as assessed by Investigator. Time to MIBC and/or metastatic disease does not include deaths. If patients died without MIBC and/or metastatic disease, they will be censored at the time of death. All other censoring rules per DFS analysis will be applied including censoring patients with an event after 2 missed visits and patients with no evaluable disease assessments or no baseline data.
    measure
    To assess the efficacy of durvalumab + BCG (induction and maintenance) combination therapy compared to BCG (induction and maintenance) alone in terms of Time to MIBC and/or Metastatic Disease
    time Frame
    Up to 4 years
  5. description
    Time to cystectomy using Investigator disease assessments. Time to cystectomy is defined as the time from the date of randomization until the date of cystectomy as reported by Investigator. Patients who died prior to cystectomy will be censored at the time of death. Patients who have not had a cystectomy at the time of analysis will be censored at the last recorded date on which the patient was known to be alive. No other censoring rules per the DFS analysis will be applied.
    measure
    To assess the efficacy of durvalumab + BCG (induction and maintenance) combination therapy compared to BCG (induction and maintenance) alone with respect to time to cystectomy
    time Frame
    Up to 4 years
  6. description
    Time to development of upper tract urothelial carcinoma using Investigator disease assessments. Time to development of upper tract urothelial carcinoma (TTUTUC) is defined as the time from the date of randomization until the date of development of upper tract urothelial carcinoma as assessed by Investigator using CT urography or ureteroscopy (less common). TTUTUC does not include deaths. Patients who died without upper tract urothelial carcinoma will be censored at the time of death. Other censoring rules per DFS analysis will be applied, including censoring patients with no baseline data but excluding censoring patients with an event after 2 missed visits as evaluation of the upper urinary tract is not part of regular disease assessment and is performed as clinically indicated.
    measure
    To assess the efficacy of durvalumab + BCG (induction and maintenance) combination therapy compared to BCG (induction and maintenance) alone in terms of time to development of upper tract urothelial carcinoma
    time Frame
    Up to 7 years
  7. description
    Any disease-free survival (aDFS) is defined similarly as DFS, except that aDFS includes recurrence of low/medium risk NMIBC. This will be based on Investigator disease assessments.
    measure
    To assess the efficacy of durvalumab + BCG (induction only) combination therapy compared to BCG (induction and maintenance) alone in terms of Disease-free survival
    time Frame
    Up to 7 years
  8. description
    Proportion of patients alive and disease free at 24 months using Investigator disease assessments. DFS24 is defined as the proportion of patients alive and disease-free at 24 months after randomization, per Investigator disease assessment
    measure
    To assess the efficacy of durvalumab + BCG (induction only) combination therapy compared to BCG (induction and maintenance) alone in terms of patients alive and disease free at 24 months
    time Frame
    Up to 24 months
  9. description
    Overall survival at 5 years. Overall survival (OS) is defined as the time from the date of randomization until death due to any cause regardless of whether the patient withdraws from randomized therapy or receives another anti-cancer therapy (i.e. date of death or censoring - date of randomization +1).
    measure
    To assess the efficacy of durvalumab + BCG (induction only) combination therapy compared to BCG (induction and maintenance) alone in terms of OS5
    time Frame
    up to 5 years
  10. description
    Any disease-free survival using Investigator disease assessments. Any disease-free survival (aDFS) is defined similarly as DFS, except that aDFS includes recurrence of low/medium risk NMIBC. This will be based on Investigator disease assessments.
    measure
    To assess the efficacy of durvalumab + BCG (induction only) combination therapy compared to BCG (induction and maintenance) alone in terms of any disease-free survival
    time Frame
    Up to 7 years
  11. description
    Time to MIBC and/or metastatic disease using Investigator disease assessments. Time to MIBC and/or metastatic disease is defined as the time from the date of randomization until the date of first documented MIBC and/or metastatic disease as assessed by Investigator. Time to MIBC and/or metastatic disease does not include deaths. If patients died without MIBC and/or metastatic disease, they will be censored at the time of death. All other censoring rules per DFS analysis will be applied including censoring patients with an event after 2 missed visits and patients with no evaluable disease assessments or no baseline data.
    measure
    To assess the efficacy of durvalumab + BCG (induction only) combination therapy compared to BCG (induction and maintenance) alone in terms of Time to MIBC and/or metastatic disease
    time Frame
    Up to 7 years
  12. description
    Time to cystectomy using Investigator disease assessments. Time to cystectomy is defined as the time from the date of randomization until the date of cystectomy as reported by Investigator. Patients who died prior to cystectomy will be censored at the time of death. Patients who have not had a cystectomy at the time of analysis will be censored at the last recorded date on which the patient was known to be alive. No other censoring rules per the DFS analysis will be applied.
    measure
    To assess the efficacy of durvalumab + BCG (induction only) combination therapy compared to BCG (induction and maintenance) alone in terms of time to cystectomy
    time Frame
    Up to 7 years
Full study description
brief Summary
This is a randomized, open-label, multi-center, global, phase III study to determine the efficacy and safety of Durvalumab + BCG combination therapy in the treatment of patients with non-muscle-invasive bladder cancer
detailed Description
Patients will be randomized in a 1:1:1 ratio to receive treatment with Durvalumab + BCG combination therapies, or Standard of Care (SoC) therapy.
Source references
references
  1. citation
    De Santis M, Palou Redorta J, Nishiyama H, Krawczynski M, Seyitkuliev A, Novikov A, Guerrero-Ramos F, Zukov R, Kato M, Kawahara T, Goeman L, Puente J, Hellmis E, Powles T, Radziszewski P, Gust KM, Vasey P, Bigot P, Fradet Y, Hunting J, Armstrong J, Boulos S, Hois S, Shore ND; POTOMAC Investigators. Durvalumab in combination with BCG for BCG-naive, high-risk, non-muscle-invasive bladder cancer (POTOMAC): final analysis of a randomised, open-label, phase 3 trial. Lancet. 2025 Nov 8;406(10516):2221-2234. doi: 10.1016/S0140-6736(25)01897-5. Epub 2025 Oct 17.
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        ="https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm">Drugs@FDA</a>.</p><h2>Efficacy and Safety</h2><p>Efficacy was evaluated in&nbsp;the POTOMAC study (NCT03528694), a randomized, open-label, multicenter trial that enrolled 1,018 patients with high-risk NMIBC following transurethral resection of bladder tumor. High-risk N
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    Preserved source evidence · Not medical advice