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Locally Advanced or Metastatic Urothelial Cell CarcinomaPhase 1/2FIERCE-22NCT03123055

A Study of B-701 in Combination With Pembrolizumab in Treatment of Locally Advanced or Metastatic Urothelial Cell Carcinoma

A Phase 1/2 study testing B-701 and Pembrolizumab in people with Locally Advanced or Metastatic Urothelial Cell Carcinoma and Urinary Bladder Disease, run by Rainier Therapeutics at 52 sites in 17 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
Search all trials

Trial summary

This is a Phase 1b/2 multi-center, open-label study to establish the initial safety and to determine a recommended Phase 2 dose of B-701 in combination with pembrolizumab, and to determine safety, tolerability and efficacy of B-701 (vofatamab) plus pembrolizumab in the treatment of subjects with locally advanced or… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
B-701 and Pembrolizumab
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
52 sitesin 17 countries
Study dates
20 Apr 2017to 1 Dec 2019
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Have locally advanced (on TNM staging: T4b and any N, or any T and N2-3) or metastatic transitional cell carcinoma of the urothelium, including of the urinary bladder, urethra, ureter, and/or renal pelvis. The diagnosis must be histologically or cytologically confirmed.
  • Have progression during or following platinum-containing chemotherapy or within 12 months of neoadjuvant or adjuvant treatment with platinum-containing chemotherapy.
  • Have available archival tumor or be willing to undergo diagnostic biopsy at screening. Sample must be of suitable quality and quantity to satisfy group assignment and biomarker endpoints.
  • Have measurable disease according to Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST v1.1).
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) ≤ 1.

Who cannot join

  • Participants with a history of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or evidence of active pneumonitis on the Screening chest CT scan.
  • Prior therapy with an anti-programmed cell death 1 (PD-1) or anti-PD-Ligand 1 agent, or with an agent directed to another co-inhibitory T-cell receptor or FGFR inhibitor.
  • Patients with autoimmune disease or medical conditions that required systemic corticosteroids (> 10 mg/day prednisone or its equivalent) or other immunosuppressive medications or any other form of systemic immunosuppressive therapy within 7 days prior to the first dose of study treatment. Note: Replacement therapy (e.g. physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment.
  • Primary central nervous system (CNS) malignancy or CNS metastases.
  • History of clinically significant coagulation or platelet disorder in the past 12 months.

Trial locations and contacts

52 sites in 17 countries.

52 sites in 17 countries

United States8 sites
  • Research Site

    Cleveland, Ohio, 44195

  • Research Site

    Fort Wayne, Indiana, 46845

  • Research Site

    Germantown, Tennessee, 38138

  • Research Site

    Greenbrae, California, 94904

  • Research Site

    Houston, Texas, 77030

  • Research Site

    Louisville, Kentucky, 40202

  • Research Site

    Philadelphia, Pennsylvania, 19107

  • Washington University School of Medicine

    St Louis, Missouri, 63110

Other trials in United States

Germany6 sites
  • Research Site

    Dresden, 01307

  • Research Site

    Frankfurt, 60488

  • Research Site

    Heidelberg, 69120

  • Research Site

    Kassel, 34125

  • Research Site

    Munich, 81377

  • Research Site

    Münster, 48149

Other trials in Germany

Poland5 sites
  • Research Site

    Katowice, 40-514

  • Research Site

    Warsaw, 02-567

  • Research Site

    Warsaw, 02-781

  • Research Site

    Wieliszew, 05-135

  • Research Site

    Wroclaw, 53-413

Other trials in Poland

Serbia5 sites
  • Research Site

    Belgrade, 11000

  • Research Site

    Belgrade, 11070

  • Research Site

    Kamenitz, 21204

  • Research Site

    Kragujevac, 34000

  • Research Site

    Niš, 18000

Other trials in Serbia

Spain5 sites
  • Research Site

    Barcelona, 08035

  • Research Site

    Barcelona, 08036

  • Research Site

    Madrid, CA, 28050

  • Research Site

    Madrid, 28034

  • Research Site

    Madrid, 28041

Other trials in Spain

South Korea4 sites
  • Research Site

    Gwangju, 61469

  • Research Site

    Seongnam-si, 13620

  • Research Site

    Seoul, 03722

  • Research Site

    Seoul, 06351

Other trials in South Korea

Belgium3 sites
  • Research Site

    Brussels, 1000

  • Research Site

    Leuven, 3000

  • Research Team

    Yvoir, 5530

Other trials in Belgium

Russia3 sites
  • Research Site

    Moscow, 125284

  • Research Site

    Saint Petersburg, 197758

  • Research Team

    Ufa, 450000

Other trials in Russia

France2 sites
  • Research Site

    Bordeaux, 33076

  • Research Site

    Dijon, 21000

Other trials in France

Italy2 sites
  • Research Site

    Milan, 20133

  • Research Site

    Milan, 20141

Other trials in Italy

Turkey (Türkiye)2 sites
  • Research Site

    Ankara, 06100

  • Research Site

    Antalya, 07059

Other trials in Turkey (Türkiye)

Ukraine2 sites
  • Research Site

    Dnipro, 49102

  • Research Site

    Kyiv, 03022

Other trials in Ukraine

Denmark1 site
  • Research Team

    Copenhagen, 2100

Other trials in Denmark

Hungary1 site
  • Research Site

    Budapest, 1122

Other trials in Hungary

Moldova1 site
  • Research Site

    Chisinau, 2025

Other trials in Moldova

Netherlands1 site
  • Research Site

    Utrecht, 3584 CX

Other trials in Netherlands

Sweden1 site
  • Research Site

    Uppsala, 75185

Other trials in Sweden

About this study

Official title: A Multi-Center, Open-Label Phase 1b/2 Study of a Novel FGFR3 Inhibitor (B-701) Combined With Pembrolizumab in Subjects With Locally Advanced or Metastatic Urothelial Carcinoma Who Have Progressed Following Platinum-based Chemotherapy

This is a Phase 1b/2 multi-center, open-label study to establish the initial safety and to determine a recommended Phase 2 dose of B-701 in combination with pembrolizumab, and to determine safety, tolerability and efficacy of B-701 (vofatamab) plus pembrolizumab in the treatment of subjects with locally advanced or metastatic UCC, who have progressed following platinum-based chemotherapy and who have not received prior immune checkpoint inhibitor therapy.

Read the detailed description

This is a Phase 1b/2 multi-center, open-label study to determine the safety, tolerability, and efficacy of B-701 (vofatamab) plus pembrolizumab in the treatment of subjects with locally advanced or metastatic UCC, who have progressed following platinum-based chemotherapy and who have not received prior immune checkpoint inhibitor or FGFR inhibitor-targeted therapy. The study consists of 2 parts: a Phase 1b lead-in phase enrolling 6 to 18 subjects and a Phase 2 dose expansion phase enrolling up to a total of 74 subjects.

Subjects who discontinue B-701 (vofatamab) may continue on study and receive pembrolizumab alone until disease progression, death, withdrawal of patient consent, or study termination. Subjects who discontinue pembrolizumab may continue on study and receive B-701 (vofatamab) alone until disease progression, death, withdrawal of patient consent, or study termination.

Being tested
B-701, Pembrolizumab
Keywords
Urothelial Cell Carcinoma, UCC, bladder cancer, B-701, FGFR3, invasive bladder cancer, Transitional Cell Carcinoma, TCC, second line therapy, monoclonal antibody, combination therapy, Phase 1b, pembrolizumab, checkpoint inhibitor, Phase 2, Urothelial Carcinoma, Vofatamab
Medical subject headings
Urinary Bladder Diseases, Urologic Diseases, Urinary Bladder Neoplasms, Carcinoma, Transitional Cell

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • B-701Drug

    Also called MFGR1877S, Vofatamab

    B-701 (vofatamab) is a human IgG1 monoclonal antibody that is highly specific for the FGFR3 receptor.

  • PembrolizumabDrug

    Also called Keytruda

    Pembrolizumab is a humanized antibody used in cancer immunotherapy. Pembrolizumab targets and blocks a protein called PD-1 on the surface of certain immune cells called T-cells. Blocking PD-1 triggers the T-cells to find and kill cancer cells.

Study groups in NCT03123055
Study groupRoleWhat they receive
B-701 (vofatamab)ExperimentalB-701 (vofatamab, 25 mg/kg) will be administered via IV infusion on Cycle 0 Day 1 for a single 14-day cycle.
Receives: Drug: B-701
B-701 (vofatamab) plus pembrolizumabExperimentalB-701 (vofatamab, 25 mg/kg [or the recommended Phase 2 dose if different than 25 mg/kg]) plus pembrolizumab (200 mg) will be administered by IV infusion on Cycle 1 Day 1 once every 3 weeks.
Receives: Drug: B-701; Drug: Pembrolizumab

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Participants With Dose Limiting Toxicities Within a Period of 35 Days

    Number of Participants with Dose Limiting Toxicities within a period of 35 days will be analyzed reviewing the aggregate of adverse events (AEs) and serious adverse events (SAEs) by the B-701 program Safety Oversight Committee and will result in a recommended Phase 2 dose. Six subjects at a time are enrolled and observed for 35 days after the initial dose. If 2 or more subjects experience a DLT that dose will be declared intolerable and de-escalation of the dose will occur.

    Measured: 1 year

  2. Number of Subjects Experiencing Adverse Events (AEs and SAEs)

    Evaluate the safety and tolerability of B-701 (vofatamab) plus pembrolizumab in subjects with UCC as assessed by number of subjects experiencing adverse events (AEs and SAEs), physical examination findings, laboratory test results, and vital signs over time. This outcome is measured by a safety monitoring committee who regularly met and reviewed aggregate trends of reports AEs, lab ranges, physical exams etc. and determined if the drug was safe to continue.

    Measured: 2.5 years

  3. Efficacy of B-701 (Vofatamab) Plus Pembrolizumab Measured by ORR

    Evaluate the efficacy of B-701 (vofatamab) plus pembrolizumab in subjects with UCC as measured by objective response rate (ORR) by RECIST 1.1. ORR is defined as the percentage of subjects who have baseline measurable disease and who achieve a best response of either complete response (CR) or partial response (PR).

    Measured: 2 years

Secondary outcomes (6)
  1. Assessment of Changes in Biomarkers Induced by B-701 (Vofatamab)

    Whole blood (PBMCs), serum, and plasma samples for biomarker analyses will be obtained prior to infusion of B-701 at pre-defined visit days.

    The effects of B-701 on the downstream signaling of the FGFR3 pathway, tumor sub-type and on the immune surveillance of UCC tumors will be monitored using techniques that include gene expression profiling (such as whole transcriptome RNAseq), sequencing of T-cell receptors, and immunohistochemistry.

    Measured: 2.5 years

  2. Efficacy of B-701 (Vofatamab) in Combination With Pembrolizumab as Measured by DOR

    Evaluate the efficacy of B-701 (vofatamab) in combination with pembrolizumab in the treatment of subjects with UCC as measured by duration of objective response (DOR), defined as the time from first occurrence of a documented, objective response until the time of relapse or death from any cause (RECIST 1.1).

    Measured: 2 years

  3. Efficacy of B-701 (Vofatamab) in Combination With Pembrolizumab as Measured by DCR

    Evaluate the efficacy of B-701 in combination with pembrolizumab in the treatment of subjects with UCC as measured by disease control rate (DCR), defined as the percentage of subjects who achieve either complete response (CR) or partial response (PR) or stable disease (SD) according to RECIST 1.1.

    Measured: 2 years

  4. Efficacy of B-701 (Vofatamab) in Combination With Pembrolizumab as Measured by PFS

    Evaluate the efficacy of B-701 (vofatamab) in combination with pembrolizumab in the treatment of subjects with UCC as measured by progression-free survival (PFS), defined as the time from a first study treatment dose to first occurrence of disease progression (per RECIST 1.1) or death from any cause, whichever occurs first.

    Measured: 2 years

  5. Efficacy of B-701 (Vofatamab) in Combination With Pembrolizumab as Measured by OS

    Evaluate the efficacy of B-701 (vofatamab) in combination with pembrolizumab in the treatment of subjects with UCC as measured by overall survival (OS), defined as the time from first study drug administration to death from any cause (RECIST 1.1)

    Measured: 2.5 years

  6. Change in Subject Reported Quality of Life

    Evaluate the efficacy of B-701 (vofatamab) in combination with pembrolizumab in the treatment of subjects with UCC as measured by the change over time in subject reported quality of life as measured by the European Organization for Research and Treatment Quality of Life Questionnaire (EORTC QLQ-C30).

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Apr 2017
  2. Study start20 Apr 2017
  3. Primary completion1 Dec 2019
  4. Study completion1 Dec 2019

Why it stopped: program has been put on hold by the sponsor

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
B-701 (vofatamab) as monotherapy for first 2 weeks followed by B-701 (vofatamab) in combination with pembrolizumab thereafter.
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03123055
Sponsor's protocol ID
B-701-U22
Other IDs
2017-001292-23, 2017
Acronym
FIERCE-22
Status last verified
Feb 2020
First submitted
11 Apr 2017
Last updated
18 Mar 2020
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing B-701 and Pembrolizumab in people with Locally Advanced or Metastatic Urothelial Cell Carcinoma and Urinary Bladder Disease, run by Rainier Therapeutics at 52 sites in 17 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 18 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 52 sites in United States, Germany, Poland, Serbia, Spain and 12 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Mar 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Dose Limiting Toxicities Within a Period of 35 Days (time frame: 1 year). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Mar 2020.

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