Study of Intratumoral REOLYSIN® in Combination With Gemcitabine and Cisplatin as Neoadjuvant Therapy in Muscle-invasive Transitional Cell Carcinoma of the Bladder
|ClinicalTrials.gov Identifier: NCT02723838|
Recruitment Status : Withdrawn (Company has reprioritized clinical plans to focus on later-stage studies.)
First Posted : March 31, 2016
Last Update Posted : March 7, 2017
|Condition or disease||Intervention/treatment||Phase|
|Muscle-invasive Transitional Cell Carcinoma of the Bladder||Biological: REOLYSIN® Drug: Gemcitabine Drug: Cisplatin||Phase 1|
Reovirus Serotype 3 - Dearing Strain (REOLYSIN®) is a naturally occurring, ubiquitous, non-enveloped human reovirus. Reovirus has been shown to replicate selectively in Ras-transformed cells causing cell lysis. Activating mutations in Ras or mutations in oncogenes signaling through the Ras pathway may occur in as many as 80% of human tumors. The specificity of the reovirus for Ras-transformed cells, coupled with its relatively nonpathogenic nature in humans, makes it an attractive anti-cancer therapy candidate.
This is an open-label study of intratumoral REOLYSIN® in combination with standard of care neoadjuvant cisplatin/gemcitabine in patients with histologically and clinically confirmed muscle-invasive bladder cancer (T2-4) with or without pelvic lymph node involvement (N1-2) in Stage III and IV with no distant metastases (M0) and no prior systemic therapy for bladder cancer.
Treatment with intratumoral REOLYSIN® and chemotherapy is planned for 3 cycles followed by radical cystectomy or until unacceptable toxicity or another discontinuation criterion is met.
Two sequential treatment cohorts will be enrolled.
Patients in Cohort 1 will receive intratumoral REOLYSIN® on Cycle 1 Day 1, then 7-14 days later patients will receive intratumoral REOLYSIN® on Cycle 2 Day 1 plus intravenous neoadjuvant chemotherapy for 2 cycles (every 3 weeks) starting from Cycle 2 Day 2 followed by radical cystectomy. Three patients will be enrolled in this cohort. If there is a Dose Limiting Toxicity the cohort will be expanded to an additional 3 patients.
Upon completion of Cohort 1, Cohort 2 will be open to enrollment of 3 patients to receive 3 cycles of standard neoadjuvant chemotherapy on Day 1 and Day 8 of each cycle and intratumoral REOLYSIN® on Day 2 of each cycle (every 3 weeks). If there is a Dose Limiting Toxicity the cohort will be expanded to an additional 3 patients.
An Expansion Cohort will follow with up to 12 patients to be enrolled following either Cohort 1 or Cohort 2 treatment regimen based on the results of Cohort 1 and Cohort 2.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||0 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||A Phase 1b Study of Intratumoral REOLYSIN® in Combination With Gemcitabine and Cisplatin as Neoadjuvant Therapy in Muscle-invasive Transitional Cell Carcinoma of the Bladder|
|Estimated Study Start Date :||February 28, 2017|
|Estimated Primary Completion Date :||September 30, 2017|
|Estimated Study Completion Date :||February 28, 2018|
- Biological: REOLYSIN®
3 cycles (each cycle = 21 days). Cohort 1: 3x10E10 TCID50 intratumoral via cystoscopy on Day 1 of each cycle. Cohort 2: 3x10E10 TCID50 intratumoral via cystoscopy on Day 2 of each cycle.
- Drug: Gemcitabine
3 cycles (each cycle = 21 days). Cohort 1: 1000mg/m2 intravenously on Day 2 and Day 9 of Cycle 2 and Cycle 3. Cohort 2: 1000mg/m2 intravenously on Day 1 and Day 8 of each cycle.
- Drug: Cisplatin
3 cycles (each cycle = 21 days). Cohort 1: 70 mg/m2 intravenously on Day 2 of Cycle 2 and Cycle 3. Cohort 2: 70 mg/m2 intravenously on Day 1 of each cycle.
- Incidence of Treatment-Emergent Adverse Events [ Time Frame: During treatment and up to 28 days after treatment ]Nature, frequency, severity and timing of Adverse Events.
- Pre- and post-treatment biopsies will be evaluated for tumor viability, percentage of necrosis, reovirus replication and tumor infiltration of immune cells and expression of PD-1 and PD-L1 [ Time Frame: Assessed at surgery conducted following 3 3-week study treatment cycles ]
- Time to Treatment Failure (TTF) [ Time Frame: By medical chart review until disease reoccurrence or 2 years from surgery, whichever occurs first first. ]
- Disease Free Survival (DFS) [ Time Frame: By medical chart review until disease reoccurrence or death or 2 years from surgery, whichever occurs first. ]