Phase II Study of Enasidenib in IDH2-mutated Malignant Sinonasal and Skull Base Tumors
National Cancer Institute (NCI)
Summary
Background: Cancers of the nasal cavity or skull base are rare. They often are not diagnosed until they are at an advanced stage, and they often spread to other parts of the body. These cancers may have mutations in a gene called IDH2. Researchers want to find out if a drug (enasidenib) that targets the IDH2 mutation can help people with these cancers. Objective: To test enasidenib in people with cancers of the nasal cavity or skull base. Eligibility: People aged 18 years and older with rare cancers of the nasal cavity or the base of the skull. Their cancer must have an IDH2 gene mutation, and it must have recurred locally or spread to other parts of the body. These cancers can include sinonasal undifferentiated carcinoma; olfactory neuroblastoma; sinonasal large-cell neuroendocrine carcinoma; poorly differentiated sinonasal adenocarcinoma; or chondrosarcoma. Design: Participants will be screened. They will have a physical exam with blood and urine tests and tests of their heart function. They will have imaging scans of their brain, skull base, neck, chest, abdomen, and pelvis. A sample of tumor tissue will be collected. Enasidenib is a tablet taken by mouth with a glass of water. Participants will take the drug once a day, every day, in 28-day cycles. They will not have resting periods between cycles. Participants will visit the clinic on the first day of each cycle to receive the tablets they will need to take at home until the beginning of the next cycle. They will keep a diary to record the time of each dose they take. Participants may remain in the study as long as the drug is helping them....
Description
Background: * Sinonasal undifferentiated carcinoma (SNUC) and olfactory neuroblastoma (ONB) are rare malignant sinonasal and skull base tumors, a group that also includes sinonasal adenocarcinoma, squamous cell carcinoma, large cell neuroendocrine carcinoma, sinonasal papilloma, chondrosarcoma (CS), chordoma and others. * These malignancies are often diagnosed at a locally advanced stage. They tend to invade locally and have high rates of regional spread to the neck, and distally to the lungs and bones. For early locoregional disease multimodality treatment is used: surgery with postoperative…
Eligibility
- Age range
- 18–120 years
- Sex
- All
- Healthy volunteers
- No
* INCLUSION CRITERIA: * Histologically or cytologically confirmed locally advanced or metastatic SNUC, ONB, LCNEC, SNAC, and CS with documented somatic (tumor) IDH2 mutations R140 or R172. Primary tumors must be located in the sinonasal cavity and/or skull base. * Locally advanced disease must not be amenable to potentially curative surgery/radiotherapy. * Must have recurred or progressed following prior systemic therapy administered in the recurrent or metastatic setting. Any number of prior systemic therapies is allowed. * Measurable disease, per RECIST 1.1. Lesions in a previously irradiate…
Interventions
- DrugEnasidenib
100mg PO (orally) once daily, on days 1-28 of a 28-day cycle
Location
- National Institutes of Health Clinical CenterBethesda, Maryland