Modern Immunotherapy in BCG-Unresponsive, BCG-Relapsing and High Risk BCG-Naive Non-Muscle Invasive Urothelial Carcinoma of the Bladder (ADAPT-BLADDER)

PhAse 1/2 StuDy of Modern ImmunotherApy in BCG-Unresponsive, BCG-RelaPsing, and High-Risk BCG-Naive Non-muscle Invasive UroThelial Carcinoma of the BLADDER

Upon successful screening and registration, enrollment to a cohort will begin. If DLT criteria are exceeded in a cohort, that cohort will close and will not proceed to Phase 2 of the study. Provided the safety of a cohort is established, enrollment will continue. Within BCG-containing cohorts, treatment will begin at full-dose BCG. If DLT criteria are exceeded with full-dose BCG, a one level dose reduction of BCG will be implemented. If DLT criteria are exceeded with reduced-dose BCG, the BCG-containing cohort will not proceed to Phase 2 of the study

Phase 1 Cohorts:

• Durvalumab Monotherapy (cohort 1); ENROLLMENT COMPLETE
• Durvalumab plus BCG (cohort 2); ENROLLMENT COMPLETE
• Durvalumab plus External Beam Radiotherapy (EBRT) (cohort 3); ENROLLMENT COMPLETE
• Durvalumab plus Intravesical Gemcitabine plus Intravesical Docetaxel (cohort 4); ENROLLMENT COMPLETE
• Durvalumab plus Tremelimumab plus Intravesical Gemcitabine plus Intravesical Docetaxel (cohort 5); ENROLLMENT DID NOT OCCUR
• Intravesical N-803NAI plus Intravesical Gemcitabine (cohort 6)
• Intravesical N-803NAI plus Intravesical Gemcitabine plus Intravesical Docetaxel (cohort 7)
• Subcutaneous N-803NAI plus Intravesical N-803NAI plus Intravesical Gemcitabine plus Intravesical Docetaxel (cohort 8)

If any of the combination regimen cohorts establishes a RP2D in Phase 1 of the study, enrollment to Phase 2 of the study may proceed within the individual phase 2 expansion cohorts defined by patient BCG exposure history. Upon successful screening and registration, Phase 2 subjects will be assigned to one of the treatment arms. Assignment will occur amongst the arms that are open to accrual at the time of subject registration. Phase 2 subjects will be administered treatment at the RP2D's established for each regimen within Phase 1 of the study.

However, within BCG-containing cohorts, the BCG dose will be reduced to Dose level -1 (1/3rd-dose BCG) even if the RP2D established in the Phase 1 of the study was full-dose BCG. The rationale for this stems from ongoing global BCG supply shortages that have arisen since the launch of the trial and multiple prior clinical trials demonstrating similar efficacy with decreased toxicity when reduced-dose BCG regimens are utilized compared to full-dose BCG therapy. This modification was deemed necessary to facilitate continued enrollment to the study while not sacrificing clinical efficacy or safety. This modification also aligns with recent AUA consensus guidelines on BCG dosing during BCG shortages.

It is anticipated that individual treatment cohorts will be closed and added during the conduct of the study as cohorts complete accrual, individual cohort safety data is analyzed, and new cohorts are added. Enrollment to Phase 2 cohorts will not begin until at least one cohort has successfully established a RP2D in the Phase 1 portion of the study and deemed safe to proceed to the Phase 2 portion of the trial.

Study Overview

• Status: Active, not recruiting
• Conditions: Bladder Cancer; Urothelial Carcinoma
• Intervention / Treatment: Drug: Durvalumab (Cohort 1-3); Biological: Bacillus Calmette-Guérin (BCG); Radiation: External Beam Radiotherapy (EBRT); Drug: Gemcitabine; Drug: Docetaxel; Drug: Durvalumab (Cohort 4/5); Biological: Tremelimumab; Other: To be determined; Drug: Intravesical NAI (Cohorts 6-7); Drug: Subcutaneous NAI (Cohort 8)

• Study Type: Interventional
• Enrollment (Estimated): 186
• Phase: Phase 2; Phase 1

Contacts and Locations

Study Locations

• United States
  • Arizona
    • Phoenix, Arizona, United States, 85032
      • BCG Oncology
  • Indiana
    • Indianapolis, Indiana, United States, 46202
      • Indiana University Melvin and Bren Simon Cancer Center
  • Iowa
    • Iowa City, Iowa, United States, 52242
      • University of Iowa Hospitals and Clinics
  • Maryland
    • Baltimore, Maryland, United States, 21231
      • Johns Hopkins University: Sidney Kimmel Comprehensive Cancer Center
  • Missouri
    • St Louis, Missouri, United States, 63110
      • Washington University School of Medicine
  • Nebraska
    • Omaha, Nebraska, United States, 68198
      • University of Nebraska Medical Center
  • New York
    • New York, New York, United States, 10032
      • Columbia University Irving Medical Center
  • North Carolina
    • Chapel Hill, North Carolina, United States, 27599
      • University of North Carolina at Chapel Hill
  • Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19111
      • Fox Chase Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria (All Patients):

Subject must meet all of the following applicable criteria to participate in this study:

• Histologically confirmed non-muscle invasive urothelial carcinoma of the bladder (Ta, T1, or Tis stage) on TURBT obtained within 60 days of registration.

NOTE: Mixed histologies are permitted, provided a component of urothelial carcinoma is present. Patients with histologically confirmed non- muscle invasive urothelial carcinoma of the bladder (Ta, T1, or Tis stage) on prior TURBT who undergo re-resection of the tumor base to confirm the diagnosis and/or exclude the presence of muscle-invasive disease (T2 or greater) who do not have appreciable tumor in the re-resection TURBT are eligible to enroll provided their re-resection was obtained within 60 days of registration and they meet all other eligibility criteria.

• ECOG (WHO) performance status 0 or 1
• Age ≥ 18 years old at time of consent

• Adequate hematologic, hepatic, and renal function as defined by the following laboratory parameters:

  • White blood cell count (WBC) > 3.0 K/mm3
  • Absolute neutrophil count (ANC) ≥ 1.5 K/mm3
  • Platelets ≥ 100 K/mm3
  • Hemoglobin (Hgb) ≥ 9 g/dL
  • Serum total bilirubin: ≤ 1.5 x ULN
  • ALT and AST ≤ 2.5 x ULN
  • Serum creatinine clearance (CrCl) ≥ 30 mL/min using the modified Cockcroft- Gault equation
• Subjects who give a written informed consent obtained according to local guidelines

Inclusion Criteria (Phase 1 Only):

In addition to the inclusion criteria required of all patients above, the following inclusion criteria are also required of patients enrolling to Phase 1 of the study.

• BCG-unresponsive disease defined by any of the following:

• Persistent or recurrent CIS with or without the presence of concurrent Ta or T1 tumors within 12 months of completion of adequate BCG therapy
• Recurrent high-grade Ta or T1 tumors within 6 months of completion of adequate BCG therapy.

NOTE: In recognition of the fact that procedure scheduling factors beyond the control of the patient or treating physician may cause unintended delays in disease evaluations, patients with pure papillary tumors (Ta or T1) with no components of CIS with recurrence documented within 9 months of completion of adequate BCG therapy who meet all other eligibility criteria may be considered for enrollment after consultation with the study chair.

• Persistent T1 high-grade tumors at the first disease evaluation (e.g. 3- month post-treatment evaluation) following an adequate BCG induction course
• Prostatic urethra involvement of NMIBC

• Adequate BCG therapy is defined as at least one of the following:

  • At least 5 of 6 doses of an initial induction BCG course plus at least 2 of 3 doses of maintenance therapy
  • At least 5 of 6 doses of an initial induction BCG course plus at least 2 of 6 doses of a second induction course.

NOTE: In cohorts that administer intravenous systemic therapy as part of the treatment regimen (cohorts 1-5), patients with concurrent non-muscle high-grade invasive tumors (CIS, Ta, T1) in the prostatic urethra and/or concurrent non-invasive high-grade tumors (CIS, Ta) in the upper urinary tracts (ureter, renal pelvis) are permitted to enroll in Phase 1 of the study. Patients with concurrent high-grade T1 tumors in the upper urinary tracts (ureter, renal pelvis) are not eligible to enroll in Phase 1 of the study.

In cohorts that do not administer intravenous systemic therapy as part of the treatment regimen (cohorts 6-8), patients with concurrent non-muscle invasive high-grade tumors (CIS, Ta, T1) in the prostatic urethra and/or concurrent non-muscle invasive high-grade tumors (CIS, Ta, T1) in the upper urinary tracts (ureter, renal pelvis) are not eligible to enroll in Phase 1 of the study.

Patients who have met the BCG-unresponsive criteria at any time point in their treatment history are permitted to enroll in Phase 1 of the study regardless of the time frame between their most recent BCG treatment administration and study registration dates.

Inclusion Criteria (Phase 2 Only):

In addition to the inclusion criteria required of all patients above, the following inclusion criteria are also required of patients enrolling to Phase 2 of the study.

• High-risk NMIBC defined according to modified EORTC risk criteria summarized as follows: NOTE: Intermediate- and Low-risk tumors as defined below are not eligible. NOTE: At least half of the subjects enrolled to each cohort must have a component of CIS present.

• Low-risk Tumors: Initial or recurrent tumor > 12 months after resection with all of the following:

  • Solitary tumor
  • Low-grade
  • < 3 cm
  • No CIS

• Intermediate-Risk Tumors

  --- All tumors not defined in the two adjacent categories (between the category of low and high risk)

• High-risk Tumors. Any of the following:

  --- T1 tumor

  • High-grade
  • CIS
  • Multiple and recurrent and large (> 3 cm) Ta low-grade tumors (all conditions must be met for this point on Ta low-grade tumors) • BCG-unresponsive, BCG-relapsing, BCG-persistent, or high-risk BCG-naïve NMIBC defined as follows: NOTE: Patients enrolling to phase 2 will enroll separately into a maximum of three expanded cohorts defined by the BCG exposure population eligibility criteria defined below (BCG-unresponsive, BCG-relapsing, BCG-persistent, and high-risk BCG-naïve). The three possible cohorts for each regimen expanded to phase 2 enrollment will be: BCG-unresponsive, BCG-relapsing and/or BCG-persistent (combined within a single cohort), and high-risk BCG-naïve. It is not anticipated that all three possible phase 2 expansion cohort populations will be pursued for every regimen entering phase 2 expansion. Questions regarding phase 2 expansion cohort populations and patient eligibility should be directed to the study chair. The individual eligibility for phase 2 expanded cohorts according to BCG exposure history are summarized below.

• BCG-unresponsive NMIBC phase 2 expanded cohort. BCG-unresponsive NMIBC is defined by any of the following:

  • Persistent or recurrent CIS with or without the presence of concurrent Ta or T1 tumors within 12 months of completion of adequate BCG therapy
  • Recurrent high-grade Ta or T1 tumors within 6 months of completion of adequate BCG therapy.

NOTE: In recognition of the fact that procedure scheduling factors beyond the control of the patient or treating physician may cause unintended delays in disease evaluations, patients with pure high-grade papillary tumors (Ta or T1) with no components of CIS with recurrence documented within 9 months of completion of adequate BCG therapy who meet all other eligibility criteria may be considered for enrollment after consultation with the study chair.

• Persistent T1 high-grade tumors at the first disease evaluation (e.g. 3-month post-treatment evaluation) following an adequate BCG induction course

• Prostatic urethra involvement of NMIBC

  o Adequate BCG therapy is defined as at least one of the following:

• At least 5 of 6 doses of an initial induction BCG course plus at least 2 of 3 doses of maintenance therapy

• At least 5 of 6 doses of an initial induction BCG course plus at least 2 of 6 doses of a second induction course NOTE: Patients who satisfy the above definition of BCG-unresponsive NMIBC continue to be considered BCG-unresponsive regardless of the receipt of any intervening or additional non-BCG based intravesical therapies (e.g. chemotherapy, non-BCG investigational agents)

  • BCG-relapsing and/or BCG-persistent NMIBC phase 2 expanded Cohort. BCG-relapsing and/or BCG-persistent NMIBC is defined by either of the following:

    • BCG-relapsing NMIBC is defined as recurrent high-risk NMIBC after achievement of a complete response to BCG induction therapy which does not meet any of the BCG-unresponsive criteria outlined in the protocol.

  • BCG-persistent NMIBC is defined as persistent high-risk NMIBC at the first disease evaluation after initial BCG induction therapy (with no intervening achievement of complete response) for which a second course of BCG induction therapy is considered a standard of care (e.g. CIS or high grade Ta tumors) which does not meet any of the BCG-unresponsive criteria outlined in the protocol.
  • High-risk BCG-naive NMIBC cohort. High-risk BCG-naive NMIBC is defined as high-risk NMIBC in a patient that has never received intravesical BCG therapy. NOTE: Patients who satisfy the above definition of BCG-unresponsive NMIBC continue to be considered BCG-unresponsive regardless of the receipt of any intervening or additional non-BCG based intravesical therapies (e.g. chemotherapy, non-BCG investigational agents)

Primary Exclusion Criteria:

Exclusion Criteria (All Patients):

• Subjects with muscle-invasive (i.e. T2, T3, T4) locally advanced unresectable, or metastatic urothelial carcinoma as assessed on baseline radiographic imaging obtained within 60 days prior to study registration. The required radiographic imaging includes:

  • Abdomen/Pelvis - CT scan
  • Chest - chest x-ray or CT scan
• Subjects with another active second malignancy other than non-melanoma skin cancers and biochemical relapsed prostate cancer. Subjects that have completed all necessary therapy and are considered to be at less than 30% risk of relapse are not considered to have an active second malignancy and are eligible for enrollment.
• Subjects who have received the last administration of an anti-cancer therapy including chemotherapy, immunotherapy, and monoclonal antibodies ≤ 4 weeks prior to starting study drug, or who have not recovered from the side effects of such therapy.

• Any unresolved toxicity NCI CTCAE v4.03 for Cohorts 1-3 and v5.0 for cohorts 4-8 Grade ≥ 2 from previous anticancer therapy with the exception of alopecia, vitiligo, and the laboratory values defined in the inclusion criteria

  • Patients with Grade ≥ 2 neuropathy will be evaluated on a case-by- case basis after consultation with the sponsor-investigator.
  • Patients with irreversible toxicity not reasonably expected to be exacerbated by treatment with durvalumab may be included only after consultation with the sponsor-investigator.
• Subjects who have received prior therapy with PD-1, PD-L1, or CTLA-4 directed agents.
• Subjects who have had any prior radiation to the prostate or pelvis. NOTE: The exclusion of patients who have had any prior radiation to the prostate or pelvis applies to both phase 1 and 2 of the trial only within radiation containing study regimens. Patients with a prior history of prostate or pelvic radiation who meet all other eligibility criteria may be considered for phase 1 and phase 2 enrollment to non-radiation containing study regimens after consultation with the study chair.
• Subjects who have undergone major surgery (e.g. intra-thoracic, intra- abdominal or intra-pelvic), open biopsy or significant traumatic injury ≤ 4 weeks prior to starting study drug, or subjects who have had minor procedures (i.e. TURBT), percutaneous biopsies or placement of vascular access device ≤ 1 week prior to starting study drug, or who have not recovered from side effects of such procedure or injury

• Subjects with any of the following concurrent severe and/or uncontrolled medical conditions which could compromise participation in the study:

  • Clinically significant cardiac diseases, including any of the following:

    --- History or presence of serious uncontrolled ventricular arrhythmias

    --- Clinically significant resting bradycardia

    • Any of the following within 3 months prior to starting study drug: myocardial infarction (MI), severe/unstable angina, Coronary Artery Bypass Graft (CABG), Congestive Heart Failure (CHF), Cerebrovascular Accident (CVA), Transient Ischemic Attack (TIA), Pulmonary Embolism (PE)
    • Uncontrolled hypertension defined by a SBP ≥ 160 mm Hg and/or DBP ≥ 100 mm Hg, with or without anti-hypertensive medication(s)
  • Cirrhosis

  • Active Infection (includes chronic active and chronic persistent)

    --- Tuberculosis

    --- Hepatitis B (known positive HBV surface antigen (HbsAg). Patients with a past or resolved HBV infection (defined as the presence of hepatitis B core antibody [anti-HBc] and absence of HbsAg) are eligible

    • Hepatitis C. Patients positive for hepatitis C (HCV) antibody are eligible only if polymerase chain reaction is negative for HCV RNA.
    • Known diagnosis of human immunodeficiency virus (HIV/positive HIV 1/2 antibodies) infection (HIV testing is not mandatory)

  • Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease [e.g., 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

  • Other concurrent severe and/or uncontrolled concomitant medical conditions (e.g. active or uncontrolled infection, uncontrolled diabetes) that could cause unacceptable safety risks or compromise compliance with the protocol

• Current or prior use of immunosuppressive medication within 14 days before the first dose of durvalumab. The following are exceptions to this criterion:

  o Intranasal, inhaled, topical steroids, or local steroid injections (e.g., intra articular injection)

  o Systemic corticosteroids at physiologic doses not to exceed 10 mg/day of prednisone or its equivalent

  • Steroids as premedication for hypersensitivity reactions (e.g., CT scan premedication)
  • Usage of non-steroidal anti-inflammatory medications (NSAIDS) for the treatment of osteoarthritis and uric acid synthesis inhibitors for the treatment of gout are permitted. For questions, please consult the sponsor-investigator.
• Pregnant or breast-feeding women. Women of child-bearing potential must have a negative serum test ≤ 14 days prior to starting study drug.
• Women of child-bearing potential, who are biologically able to conceive, and not employing contraception as described in the protocol.
• Fertile males not willing to use contraception, as stated in the protocol.
• Subjects unwilling or unable to comply with the protocol
• Receipt of live attenuated vaccine within 30 days prior to the first dose of IP.

NOTE: Patients, if enrolled, should not receive live vaccine whilst receiving study drugs and up to 30 days after the last dose of study drug.

• Known allergy or hypersensitivity to any of the study drugs or any of the study drug excipients.

3.2.2 Exclusion Criteria (Cohorts 4, 5, 7, and 8 Only)

• Subjects who have received prior intravesical therapy with BOTH gemcitabine and docetaxel NOTE: Patients who have received either intravesical gemcitabine or intravesical docetaxel (or other taxanes) but not both remain eligible. For example, patients receiving post-TURBT single dose intravesical gemcitabine administration are eligible. Similarly, patients treated with intravesical gemcitabine induction and/or maintenance are eligible. While we typically do not see patients treated with intravesical docetaxel (or other taxanes) monotherapy, if such a patient were identified and screened, they would be eligible. Patients who have received treatment with separate courses of intravesical gemcitabine monotherapy and intravesical docetaxel (or other taxanes) monotherapy are not eligible, unless such therapies occurred more than 24 months ago.

3.2.3 Exclusion Criteria (Cohort 6 Only)

• Subjects who have received prior intravesical induction therapy with gemcitabine NOTE: Patients treated with single-dose post-TURBT intravesical gemcitabine are eligible. Patients who have received intravesical induction therapy with gemcitabine are not eligible. While we typically do not see patients treated with intravesical docetaxel (or other taxanes) monotherapy, if such a patient were identified and screened, they would be eligible.

Exclusion Criteria (Phase 1 Only) In Phase 1 of the study, there are no additional exclusion criteria beyond those described of all patients above.

Exclusion Criteria (Phase 2 Only) In addition to the exclusion criteria described of all patients above, the following exclusion criteria apply to patients enrolling to Phase 2 of the study.

• Subjects with prostatic urethra or concurrent upper urinary tract (i.e. ureter, renal pelvis) high-grade urothelial carcinoma. NOTE: Subjects with concurrent low-grade non-invasive (Ta) prostatic urethra or upper urinary tract urothelial carcinoma are eligible. Similarly, patients with a history of high-grade prostatic urethra or upper tract urothelial carcinoma that has been definitively treated with at least one post-treatment disease assessment (i.e. cytology, biopsy, imaging) that demonstrates no evidence of residual disease are eligible.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

10

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Phase 1: Cohort 1; Durvalumab monotherapy	Drug: Durvalumab (Cohort 1-3); Durvalumab 1120 mg intravenously Day 1 every 21 days x 8 cycles.; Other Names: Imfinzi
Experimental: Phase 1: Cohort 2; Durvalumab plus BCG	Drug: Durvalumab (Cohort 1-3); Durvalumab 1120 mg intravenously Day 1 every 21 days x 8 cycles.; Other Names: Imfinzi; Biological: Bacillus Calmette-Guérin (BCG); Dose level 0 (starting dose) = Full-dose Dose level-1 = 1/3rd-dose BCG. Dose level -1 is expected to be utilized during the phase II portion of the study due to the ongoing and persistent shortage of BCG in the US.
Experimental: Phase 1: Cohort 3; Durvalumab plus External Beam Radiotherapy (EBRT) (BCG re-treatment) - Cross-over to Durvalumab Monotherapy	Drug: Durvalumab (Cohort 1-3); Durvalumab 1120 mg intravenously Day 1 every 21 days x 8 cycles.; Other Names: Imfinzi; Radiation: External Beam Radiotherapy (EBRT); EBRT 6 Gy x 3; Cycle 1 Day 1, 3, and 5
Experimental: Phase 1: Cohort 4; Durvalumab + Gemcitabine/Intravesical Docetaxel (Gem/Doc) The sequence of administration is flexible to allow for scheduling of both the infusion and intravesical treatments.	Drug: Gemcitabine; Gemcitabine 1000 mg intravesical weekly (+/- 2 days) x 6 doses; Other Names: Gemzar; Drug: Docetaxel; Docetaxel 37.5 mg intravesical weekly (+/- 2 days) x 6 doses.; Other Names: Taxotere; Drug: Durvalumab (Cohort 4/5); Durvalumab 1500 mg intravenously Day 1 (+/- 2 days) every 28 days x 6 cycles.; Other Names: Imfinzi
Experimental: Phase 1: Cohort 5; NOTE: Cohort 5 was abandoned prior to any patients enrolled. Durvalumab + Tremelimumab + Gem/Doc The sequence of administration is flexible to allow for scheduling of both the infusion and intravesical treatments. For the intravenous medications, durvalumab should be administered first followed by tremelimumab.	Drug: Gemcitabine; Gemcitabine 1000 mg intravesical weekly (+/- 2 days) x 6 doses; Other Names: Gemzar; Drug: Docetaxel; Docetaxel 37.5 mg intravesical weekly (+/- 2 days) x 6 doses.; Other Names: Taxotere; Drug: Durvalumab (Cohort 4/5); Durvalumab 1500 mg intravenously Day 1 (+/- 2 days) every 28 days x 6 cycles.; Other Names: Imfinzi; Biological: Tremelimumab; Tremelimumab 75 mg intravenously Day 1 (+/- 2 days) every 28 days x 4 cycles.
Experimental: Phase 2: Cohort 4 Expansion; Durvalumab + Gemcitabine/Intravesical Docetaxel (Gem/Doc) The sequence of administration is flexible to allow for scheduling of both the infusion and intravesical treatments.	Drug: Gemcitabine; Gemcitabine 1000 mg intravesical weekly (+/- 2 days) x 6 doses; Other Names: Gemzar; Drug: Docetaxel; Docetaxel 37.5 mg intravesical weekly (+/- 2 days) x 6 doses.; Other Names: Taxotere; Drug: Durvalumab (Cohort 4/5); Durvalumab 1500 mg intravenously Day 1 (+/- 2 days) every 28 days x 6 cycles.; Other Names: Imfinzi
Experimental: Phase 1: Cohort 6; Intravesical NAI plus Gemcitabine	Drug: Gemcitabine; Gemcitabine 1000 mg intravesical weekly (+/- 2 days) x 6 doses; Other Names: Gemzar; Drug: Intravesical NAI (Cohorts 6-7); For all cohorts containing intravesical NAI treatment, starting in Week 1, induction intravesical NAI 400 ug will be administered weekly x 6 doses via a foley catheter into an empty bladder and maintained in the bladder for 60 minutes.
Experimental: Phase 1: Cohort 7; Intravesical NAI plus Gemcitabine and Docetaxel	Drug: Gemcitabine; Gemcitabine 1000 mg intravesical weekly (+/- 2 days) x 6 doses; Other Names: Gemzar; Drug: Docetaxel; Docetaxel 37.5 mg intravesical weekly (+/- 2 days) x 6 doses.; Other Names: Taxotere; Drug: Intravesical NAI (Cohorts 6-7); For all cohorts containing intravesical NAI treatment, starting in Week 1, induction intravesical NAI 400 ug will be administered weekly x 6 doses via a foley catheter into an empty bladder and maintained in the bladder for 60 minutes.
Experimental: Phase 1: Cohort 8; Subcutaneous NAI plus Intravesical NAI plus Gemcitabine and Docetaxel	Drug: Gemcitabine; Gemcitabine 1000 mg intravesical weekly (+/- 2 days) x 6 doses; Other Names: Gemzar; Drug: Docetaxel; Docetaxel 37.5 mg intravesical weekly (+/- 2 days) x 6 doses.; Other Names: Taxotere; Drug: Intravesical NAI (Cohorts 6-7); For all cohorts containing intravesical NAI treatment, starting in Week 1, induction intravesical NAI 400 ug will be administered weekly x 6 doses via a foley catheter into an empty bladder and maintained in the bladder for 60 minutes.; Drug: Subcutaneous NAI (Cohort 8); For all cohorts containing subcutaneous NAI treatment, starting in Week 1, NAI 10 ug/kg will be administered biweekly for 3 doses via subcutaneous injection.
Experimental: Phase 1: Cohort 9; Additional Regimens TBD	Other: To be determined; Other regimens to be determined

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Phase 2: Determine the complete response rate within individual phase 2 expansion cohorts of BCG-unresponsive, BCG-relapsing/persistent, and high-risk BCG-naïve NMIBC subjects treated with each study regimen	The complete response rate within each study arm is defined as the proportion of patients within each arm that demonstrate no evidence of recurrent or persistent high grade urothelial carcinoma of the bladder of any stage at any post-treatment disease assessment.	6 months
Phase 1: Determine the recommended phase 2 dose (RP2D) from BCG-unresponsive non-muscle invasive bladder cancer (NMIBC)	Determine the recommended phase 2 dose (RP2D) from BCG-unresponsive non-muscle invasive bladder cancer (NMIBC) patients treated with each of the following immunotherapy study regimens: Durvalumab (cohort 1) Durvalumab + intravesical BCG (cohort 2) Durvalumab + radiation (cohort 3) Durvalumab + intravesical Gemcitabine + intravesical Docetaxel (cohort 4) Durvalumab + Tremelimumab + intravesical Gemcitabine + intravesical Docetaxel (cohort 5) Intravesical NAI + intravesical Gemcitabine (cohort 6) Intravesical NAI + intravesical Gemcitabine + intravesical Docetaxel (cohort 7) Subcutaneous NAI + intravesical NAI + intravesical Gemcitabine + intravesical Docetaxel (cohort 8) The RP2D of each immunotherapy study arm is defined as the dose level at which < 2 out of 6, < 4 out of 9, or < 5 out of 12 patients enrolled within an individual study arm experience dose-limiting toxicity.	6 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Phase 1: Characterize the complete response rate of BCG-unresponsive NMIBC subjects treated with each study regimen	The complete response rate within each study arm is defined as the proportion of patients within each arm that demonstrate no evidence of recurrent or persistent high grade urothelial carcinoma of the bladder of any stage at any post-treatment disease assessment.	2 years (24 months)
Phase 1: Characterize the 12-month recurrence free survival (RFS) rate of BCG-unresponsive NMIBC subjects treated with each study regimen	The 12-month RFS rate of BCG-unresponsive NMIBC subjects treated within each study regimen is defined as the proportion of patients within each arm with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage at the 12-month post-treatment disease assessment.	12 month
Phase 2: Identify significant associations between complete response rates and 12-month RFS rates and baseline tumor immunohistochemistry staining patterns of PD-L1 and other relevant mechanism of action targets for each study regimen	Associations between complete response rate and 12-month RFS rates will be assessed by baseline tumor immunohistochemistry staining patterns of PD-L1 (assessed by the SP263 PD-L1 antibody) and other relevant mechanism of action targets for each drug.	12 months
Phase 2: Determine the 12-month RFS rate within individual phase 2 expansion cohorts of BCG-unresponsive, BCG-relapsing/persistent, and high-risk BCG-naive NMIBC subjects treated with each study regimen	The 12-month RFS rate of BCG-unresponsive, BCG-relapsing/persistent, and high-risk BCG-naive NMIBC subjects treated within each arm is defined as the proportion of patients within each arm with no evidence of recurrent high grade urothelial carcinoma of the bladder of any stage at the 12-month post-treatment assessment.	12 months
Phase 1: Assess Adverse Events	The safety profile of BCG-unresponsive NMIBC subjects treated within each study regimen will be assessed by NCI Common Terminology Criteria for Adverse Events (NCI CTCAE) v4.03 for Cohorts 1-3 and v5.0 for Cohorts 4-8.	6 months
Phase 2: Assess Adverse Events	The safety profile within individual phase 2 expansion cohorts of BCG-unresponsive, BCG-relapsing/persistent, and high-risk BCG-naive NMIBC subjects treated within each study arm will be assessed by NCI Common Terminology Criteria for Adverse Events (NCI CTCAE) v4.03 for Cohorts 1-3 and v5.0 for Cohorts 4-8.	6 months

Collaborators and Investigators

• Sponsor: Noah Hahn, M.D.
• Collaborators: AstraZeneca; Hoosier Cancer Research Network; ImmunityBio, Inc.
• Investigators: Principal Investigator: Noah M. Hahn, MD, Hoosier Cancer Research Network

Publications and helpful links

Helpful Links

• Hoosier Cancer Research Network Website

Study record dates

Study Major Dates

• Study Start (Actual): November 21, 2017
• Primary Completion (Estimated): December 31, 2028
• Study Completion (Estimated): December 31, 2029

Study Registration Dates

• First Submitted: October 12, 2017
• First Submitted That Met QC Criteria: October 17, 2017
• First Posted (Actual): October 23, 2017

Study Record Updates

• Last Update Posted (Actual): July 15, 2026
• Last Update Submitted That Met QC Criteria: July 14, 2026
• Last Verified: July 1, 2026

More Information

Terms related to this study

• Keywords: immunotherapy; BCG; non-muscle invasive bladder cancer
• Additional Relevant MeSH Terms: Urogenital Diseases; Urogenital Neoplasms; Neoplasms by Site; Neoplasms; Male Urogenital Diseases; Urologic Diseases; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Neoplasms by Histologic Type; Neoplasms, Glandular and Epithelial; Urologic Neoplasms; Carcinoma; Urinary Bladder Diseases; Non-Muscle Invasive Bladder Neoplasms; Urinary Bladder Neoplasms; Carcinoma, Transitional Cell; Organic Chemicals; Heterocyclic Compounds, 1-Ring; Heterocyclic Compounds; Hydrocarbons; Cycloparaffins; Hydrocarbons, Alicyclic; Hydrocarbons, Cyclic; Terpenes; Taxoids; Cyclodecanes; Diterpenes; Deoxycytidine; Cytidine; Pyrimidine Nucleosides; Pyrimidines; Docetaxel; Gemcitabine; durvalumab; tremelimumab
• Other Study ID Numbers: HCRN GU16-243

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: Yes