Purpose

This study will test an experimental drug (enfortumab vedotin) alone and with different combinations of anticancer therapies. Pembrolizumab is an immune checkpoint inhibitor (CPI) that is used to treat patients with cancer of the urinary system (urothelial cancer). This type of cancer includes cancer of the bladder, renal pelvis, ureter or urethra. Some parts of the study will look at locally-advanced and metastatic urothelial cancer, which means the cancer has spread to nearby tissues or to other areas of the body. Other parts of the study will look at muscle-invasive bladder cancer (MIBC), which is cancer at an earlier stage that has spread into the muscle wall of the bladder. This study will look at the side effects of enfortumab vedotin alone and with other anticancer therapies. A side effect is a response to a drug that is not part of the treatment effect. This study will also test if the cancer shrinks with the different treatment combinations.

Conditions

Eligibility

Eligible Ages
Over 18 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Locally advanced or metastatic urothelial cancer (la/mUC) - Cohorts A, B, D, E, F, G and K
  • Histologically documented la/mUC, including squamous differentiation or mixed cell types.
  • An Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1 or 2
  • Participants with ECOG performance status of 2 must meet the following additional criteria: hemoglobin ≥10 g/dL, GFR ≥50 mL/min, may not have NYHA Class III heart failure.
  • Eligible for pembrolizumab (Dose-escalation cohorts, Cohorts A, B, G and K Combination Arm).
  • Dose-escalation cohorts: Ineligible for first-line cisplatin-based chemotherapy and no prior treatment for la/mUC, or have disease progression following at least 1 platinum-containing treatment.
  • Cohort A: Ineligible for cisplatin-based chemotherapy and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
  • Cohort B: Must have disease progression during/following treatment with at least 1 platinum-containing regimen for la/mUC or disease recurrence.
  • Cohort D: Eligible for cisplatin-based chemotherapy and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
  • Cohort E: Ineligible for cisplatin-based chemotherapy, eligible for carboplatin, and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
  • Cohort F: Ineligible for platinum-based chemotherapy, or disease progression during/following at least 1 prior treatment for la/mUC. Eligible for gemcitabine.
  • Cohort G: Eligible for platinum-based chemotherapy (either cisplatin or carboplatin) and no prior treatment for la/mUC. No prior adjuvant/neoadjuvant platinum-based therapy in at least 12 months.
  • Cohort K: Ineligible for cisplatin-based chemotherapy due to at least 1 of the following: Glomerular filtration rate (GFR) <60 mL/min and ≥30 mL/min, ECOG performance status of 2, NCI CTCAE Version 4.03 Grade ≥2 hearing loss, New York Heart Association (NYHA) Class III heart failure. No prior systemic treatment for locally advanced or metastatic disease. No adjuvant/neoadjuvant platinum-based therapy within 12 months prior to randomization.
  • Muscle Invasive Bladder Cancer (MIBC)- Cohorts H and J
  • Histologically confirmed muscle invasive bladder cancer at clinical stage cT2-T4a.
  • Medically fit (i.e. eligible for surgery) and scheduled for radical cystectomy.
  • ECOG performance status of 0, 1, or 2.
  • Participants with ECOG performance status of 2 must meet the following additional criteria: hemoglobin ≥10 g/dL, GFR ≥50 mL/min, may not have NYHA Class III heart failure.
  • Cohort H and J: Ineligible for cisplatin-based chemotherapy and no prior systemic treatment, chemoradiation, or radiation therapy for MIBC. May have received prior intravesical Bacillus Calmette-Guerin (BCG) or intravesical chemotherapy for non-muscle invasive bladder cancer.
  • Cohort J: Eligible for pembrolizumab.

Exclusion Criteria

  • la/mUC - Cohorts A, B, D, E, F, G, and K
  • Received any prior treatment with a PD-1 inhibitor, PD-L1 inhibitor, or PD-L2 inhibitor, except Cohort F.
  • Received any prior treatment with stimulatory or co-inhibitory T-cell receptor agents, such as CD137 agonists, OX-40 agonists, or cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) inhibitors (except Cohort F).
  • Ongoing sensory or motor neuropathy Grade 2 or higher.
  • Active central nervous system (CNS) metastases.
  • Ongoing clinically significant toxicity (Grade 2 or greater) associated with prior treatment (including radiotherapy or surgery).
  • Conditions requiring high doses of steroids or other immunosuppressive medications.
  • Prior treatment with enfortumab vedotin or other monomethyl auristatin E (MMAE)-based antibody-drug conjugates (ADCs).
  • Uncontrolled diabetes mellitus.
  • MIBC - Cohorts H and J
  • Received prior systemic treatment, chemoradiation, and/or radiation therapy of muscle invasive bladder cancer.
  • Received any prior treatment with a CPI.
  • Received any prior treatment with stimulatory or co-inhibitory T-cell receptor agents, such as CD137 agonists, CTLA-4 inhibitors, or OX-40 agonists.
  • Evidence of measurable nodal or metastatic disease.
  • Ongoing sensory or motor neuropathy Grade 2 or higher.
  • Conditions requiring high doses of steroids or other immunosuppressive medications.
  • Prior treatment with enfortumab vedotin or other MMAE-based ADCs for urothelial cancer.
  • History of another malignancy within 3 years before first dose of study drug.

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Randomized
Intervention Model
Sequential Assignment
Intervention Model Description
multi-cohort, open-label, multicenter study
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
EV + Pembrolizumab in cisplatin-ineligible 1L and in 2L
Dose Escalation: Enfortumab vedotin on days 1 and 8 plus pembrolizumab on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: pembrolizumab
    IV infusion on day 1 every 21 days
    Other names:
    • Keytruda
Experimental
Cohort A: EV + Pembrolizumab in cisplatin-ineligible 1L
Enfortumab vedotin on days 1 and 8 plus pembrolizumab on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: pembrolizumab
    IV infusion on day 1 every 21 days
    Other names:
    • Keytruda
Experimental
Optional Cohort B: Enfortumab Vedotin + Pembrolizumab in 2L
Enfortumab vedotin on days 1 and 8 plus pembrolizumab on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: pembrolizumab
    IV infusion on day 1 every 21 days
    Other names:
    • Keytruda
Experimental
Cohort D: Enfortumab Vedotin + Cisplatin in 1L
Enfortumab vedotin on days 1 and 8 plus cisplatin on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: cisplatin
    IV infusion on day 1 every 21 days
Experimental
Cohort E: Enfortumab Vedotin + Carboplatin in 1L
Enfortumab vedotin on days 1 and 8 plus carboplatin on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: carboplatin
    IV infusion on day 1 every 21 days
Experimental
Optional Cohort F: Enfortumab Vedotin + Gemcitabine in 1L
Enfortumab vedotin and gemcitabine on days 1 and 8 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: gemcitabine
    IV infusion on days 1 and 8 every 21 days
Experimental
Cohort G: Enfortumab Vedotin + Platinum + Pembrolizumab in 1L
Enfortumab vedotin on days 1 and 8 plus cisplatin or carboplatin on day 1 plus pembrolizumab on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: pembrolizumab
    IV infusion on day 1 every 21 days
    Other names:
    • Keytruda
  • Drug: cisplatin
    IV infusion on day 1 every 21 days
  • Drug: carboplatin
    IV infusion on day 1 every 21 days
Experimental
Cohort H: Enfortumab vedotin in MIBC neoadjuvant setting
Enfortumab vedotin on days 1 and 8 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
Experimental
Cohort J: EV + Pembrolizumab in MIBC neoadjuvant setting
Enfortumab vedotin on days 1 and 8 plus pembrolizumab on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: pembrolizumab
    IV infusion on day 1 every 21 days
    Other names:
    • Keytruda
Experimental
Randomized Cohort K: Enfortumab Vedotin Monotherapy
Enfortumab vedotin on days 1 and 8 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
Experimental
Randomized Cohort K: Enfortumab Vedotin + Pembrolizumab
Enfortumab vedotin on days 1 and 8 plus pembrolizumab on day 1 every 21 days
  • Drug: enfortumab vedotin (EV)
    Intravenous (IV) infusion on days 1 and 8 every 21 days
    Other names:
    • ASG-22CE
    • ASG-22ME
    • PADCEV
  • Drug: pembrolizumab
    IV infusion on day 1 every 21 days
    Other names:
    • Keytruda

Recruiting Locations

University of Kansas Cancer Center
Westwood, Kansas 66205

More Details

Status
Recruiting
Sponsor
Astellas Pharma Global Development, Inc.

Study Contact

Seattle Genetics Trial Information Support
866-333-7436
clinicaltrials@seagen.com

Detailed Description

This study will examine the safety and anticancer activity of enfortumab vedotin (EV) given intravenously as monotherapy and in combination with other anticancer therapies as first line (1L) and second line (2L) treatment for patients with urothelial cancer. The primary goal of the study is to determine the safety, tolerability, and efficacy of enfortumab vedotin alone and in combination with pembrolizumab and/or chemotherapy. The study will be conducted in multiple parts:

Locally advanced or metastatic urothelial cancer:

- Dose escalation

- Expansion

- Part 1: Cohorts A and Optional B

- Part 2: Cohorts D, E, and Optional F

- Part 3: Cohort G.

- Randomized Cohort K

- EV Monotherapy Arm

- EV Combination Arm

Muscle invasive bladder cancer:

- Cohort H

- Cohort J

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.