A Phase II Single-arm Study of Tazemetostat With Docetaxel, Cisplatin, and 5-fluorouracil as Preoperative Treatment for Locally Advanced Potentially Resectable SMARCB1 (INI-1)- Deficient Sinonasal Carcinoma
Overview
- Phase
- Phase 2
- Status
- Not yet recruiting
- Sponsor
- Dr. Victor H.F. Lee
- Enrollment
- 30
- Primary Endpoint
- Best objective response
Overview
Brief Summary
SMARCB1-deficient sinonasal carcinoma is very locally advanced malignancy at diagnosis which often precluded upfront radical resection. The investigators are now proposing a phase II single-arm study on tazemetostat in combination with docetaxel, cisplatin and 5-FU (known as TPF regimen) as preoperative therapy for locally advanced non-metastatic SMARCB1 (INI-1)-deficient sinonasal carcinoma, followed by radical resection and/or post-operative radiation therapy (with or without concurrent chemotherapy), and tazemetostat for another 6 months. It is hypothesized that addition of tazemetostat will improve objective response rate, resectability rate, orbit preservation rate after surgery, and hopefully survival outcomes with manageable safety profiles.
Detailed Description
SMARCB1 (INI-1)-deficient sinonasal carcinoma is a rare but locally aggressive malignancy of the nasal cavity and paranasal sinuses, representing about only 1 % of all head and neck malignancies. It is characterized by loss of INI-1 in the tumour cells under immunohistochemical staining. The overwhelming majority of INI-1 deficient sinonasal carcinoma presents very late at diagnosis, owing to its very similar clinical presentation to other benign conditions like allergic rhinitis, nasal polyps, chronic sinusitis, and some more common malignancies like human papilloma virus-associated squamous cell carcinoma, extranodal NK/T cells lymphoma, mucosal melanoma. Therefore, complete surgical removal remains very challenging and most of the time impossible.
Currently, aggressive multimodality treatment of INI-1-deficient sinonasal carcinomas is based on experience with other sinonasal malignancies including case series of sinonasal undifferentiated carcinoma. Upfront surgical resection for potentially resectable cases, followed by adjuvant radiation therapy or adjuvant chemoradiation. Also under investigation is the use of induction chemotherapy followed by surgery and adjuvant radiation in the treatment of sinonasal malignancy.
In view of the above, the investigators are now proposing a phase II single-arm study on tazemetostat in combination with TPF as preoperative therapy for locally advanced non-metastatic SMARCB1 (INI-1)-deficient sinonasal carcinoma, followed by radical resection and/or post-operative radiation therapy (with or without concurrent chemotherapy), and tazemetostat for another 6 months. It is hypothesized that addition of tazemetostat will improve objective response rate, resectability rate, orbit preservation rate, and hopefully survival outcomes with manageable safety profiles.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Treatment
- Masking
- None
Masking Description
No masking
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Males or females are \>18 years of age with body weight ≥40kg at the time of providing voluntary written informed consent.
- •Voluntarily sign the written informed consent and demonstrated willingness and ability to comply with all aspects of the protocol which includes compliance with the requirements and restrictions listed in the informed consent form (ICF), and undergoing treatment and scheduled visits and examinations including follow up during the study period,
- •Histologically and/or cytologically confirmed locally advanced (T3-T4bN0-N3M0) non-metastatic SMARCB1 (INI-1)-deficient sinonasal carcinoma
- •For subjects who have experienced any clinically significant toxicity related to a prior anticancer treatment (i.e., chemotherapy, immunotherapy, and/or radiotherapy): at the time the subject provides voluntary written informed consent, all toxicities have either resolved to grade 1 per NCI CTCAE Version 5.0 OR are clinically stable and no longer clinically significant.
- •Have measurable disease as defined by RECIST 1.
- •Eastern Cooperative Oncology Group (ECOG) performance status of 0, 1, or
- •Must have a life expectancy of at least 12 weeks before enrollment.
- •Time between prior anticancer therapy and first dose of tazemetostat as follows:
- •Cytotoxic chemotherapy - At least 21 days Noncytotoxic chemotherapy (e.g., small molecule inhibitor) - At least 14 days. Nitrosoureas - At least 6 weeks. Monoclonal antibody - At least 28 days.
- •Adequate haematological functions at baseline before commencement of study medication as defined below:
Exclusion Criteria
- •Pre-existing or co-existing epithelioid sarcoma.
- •Has a prior history of T-Cell lymphoblastic lymphoma, T-cell acute lymphoblastic leukemia, myelodysplastic syndrome, acute myeloid leukemia, or myeloproliferative neoplasm.
- •Have undergone a solid organ transplant.
- •Prior malignancy in the past 5 years.
- •Confirm pregnant or breastfeeding.
- •Prior exposure to tazemetostat or other inhibitor(s) of EZH
- •On investigational therapy within 21 days at time of recruitment.
- •Uncontrolled central nervous system (CNS) metastases requiring steroids.
- •On medications that are known potent CYP3A4 inducers/inhibitors (including St. John's wort)
- •Unwilling to exclude Seville oranges, grapefruit juice, and grapefruit from their diet.
Arms & Interventions
Induction therapy followed by surgery and postoperative therapy
Induction chemotherapy with docetaxel 75mg/m2 on day 1, cisplatin 75mg/m2 on day 1, 5-FU 750mg from day 1 to day 5, given every 3 weeks for 3 cycles and tazemetostat 800mg twice daily orally for 3 cycles, followed by radical surgery or radical chemoradiation, and maintenance tazemetostat 800mg twice daily orally for 6 months
Intervention: Docetaxel (Drug)
Induction therapy followed by surgery and postoperative therapy
Induction chemotherapy with docetaxel 75mg/m2 on day 1, cisplatin 75mg/m2 on day 1, 5-FU 750mg from day 1 to day 5, given every 3 weeks for 3 cycles and tazemetostat 800mg twice daily orally for 3 cycles, followed by radical surgery or radical chemoradiation, and maintenance tazemetostat 800mg twice daily orally for 6 months
Intervention: Cis Platinum (Drug)
Induction therapy followed by surgery and postoperative therapy
Induction chemotherapy with docetaxel 75mg/m2 on day 1, cisplatin 75mg/m2 on day 1, 5-FU 750mg from day 1 to day 5, given every 3 weeks for 3 cycles and tazemetostat 800mg twice daily orally for 3 cycles, followed by radical surgery or radical chemoradiation, and maintenance tazemetostat 800mg twice daily orally for 6 months
Intervention: 5-FU (Drug)
Induction therapy followed by surgery and postoperative therapy
Induction chemotherapy with docetaxel 75mg/m2 on day 1, cisplatin 75mg/m2 on day 1, 5-FU 750mg from day 1 to day 5, given every 3 weeks for 3 cycles and tazemetostat 800mg twice daily orally for 3 cycles, followed by radical surgery or radical chemoradiation, and maintenance tazemetostat 800mg twice daily orally for 6 months
Intervention: Tazemetostat (Drug)
Induction therapy followed by surgery and postoperative therapy
Induction chemotherapy with docetaxel 75mg/m2 on day 1, cisplatin 75mg/m2 on day 1, 5-FU 750mg from day 1 to day 5, given every 3 weeks for 3 cycles and tazemetostat 800mg twice daily orally for 3 cycles, followed by radical surgery or radical chemoradiation, and maintenance tazemetostat 800mg twice daily orally for 6 months
Intervention: Surgery (Procedure)
Induction therapy followed by surgery and postoperative therapy
Induction chemotherapy with docetaxel 75mg/m2 on day 1, cisplatin 75mg/m2 on day 1, 5-FU 750mg from day 1 to day 5, given every 3 weeks for 3 cycles and tazemetostat 800mg twice daily orally for 3 cycles, followed by radical surgery or radical chemoradiation, and maintenance tazemetostat 800mg twice daily orally for 6 months
Intervention: Chemoradiation (Other)
Outcomes
Primary Outcomes
Best objective response
Time Frame: 48 months
Best objective response
R0 resection rate
Time Frame: 48 months
R0 resection rate
Secondary Outcomes
- Complete pathological response rate(48 months)
- Incidence of treatment-related side effects(48 months)
- R1 resection rate(48 months)
- Orbit preservation rate(48 months)
- Progression-free survival(48 months)
- Overall survival(48 months)
Investigators
Dr. Victor H.F. Lee
Clinical Associate Professor
The University of Hong Kong