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IND Submission for Phase 3
In the fourth quarter of 2023, the Company submitted a new Investigational New Drug ("IND") to the Food and Drug Administration ("FDA"). The submission included the phase 3 protocol for a superiority trial of the Company's lead product INT230-6 used as monotherapy compared to the standard of care drugs in 2nd and 3rd line treatment for certain soft tissue sarcoma subtypes. The FDA provided the Company a "Study May Proceed" letter for phase 3 within the 30 day period following the IND submission. The study is an open-label, randomized phase 3 trial expected to enroll 333 patients. For every three patients enrolled, two will receive INT230-6 and one will receive standard of care drug(s) chosen by the investigators depending on the type of sarcoma. The Company is working with its contracted vendors to initiate the phase 3 trial in the first half of 2024.
Manufacturing
In the fourth quarter of 2023, the Company successfully developed the phase 3 quality analytical methods for measurement of the key INT230-6 components, validated those methods and manufactured a clinical batch of the drug product that met specifications. During the fourth quarter, the Company requested and was granted a meeting that was held with the FDA to review the INT230-6 chemical manufacturing and controls ("CMC") for INT230-6. The CMC discussion focused on the tasks necessary to initiate the phase 3 study and future product registration as part of a potential New Drug Application (NDA). During the meeting, the Company and FDA agreed upon a plan for the CMC set of activities for the active pharmaceutical ingredients and the drug product (INT230-6) necessary for the NDA.
"The FDA's 'Study May Proceed' letter is another important milestone towards achieving our mission to develop a new, safer, and more effective way to treat cancer patients especially in the difficult to treat types such as sarcoma. A head-to-head comparison of INT230-6 as monotherapy locally delivered in metastatic sarcoma against the active, systemically-delivered standard-of-care drugs may be a first-of-its kind clinical trial," said Lewis H. Bender, President and Chief Executive Officer of Intensity. "Current standard-of-care drugs used for sarcoma after progression of the first line therapies require extensive safety monitoring. The standard of care drugs cause severe toxicities and provide median overall survival of only between 12 and 15 months depending on the drug and sarcoma subtype used. New and more effective ways to treat these patients are desperately needed."
In November of 2023 at the annual Connective Tissue Oncology meeting held in Dublin, Christian Frederick Meyer, M.D., Ph.D., M.S., an Assistant Professor of Oncology at the Sidney Kimmel Cancer Center at Johns Hopkins University and an investigator for Intensity's Phase 1/2 clinical trial of INT230-6, presented that when compared to a synthetic control1, INT230-6 alone extended survival in refractory soft tissue sarcoma subjects by approximately 14.9 months. Dosing higher amounts of INT230-6 relative to a patient's presenting total tumor burden showed a potential further increase in survival when compared to the synthetic control.
Data on INT230-6 generated in metastatic patients indicated that INT230-6 has a favorable safety profile and is well tolerated with the majority of treatment-emergent adverse events (TEAEs) being grade 1 or 2 primarily localized pain, fatigue, and nausea.
In September of 2023 the Company announced that the US FDA's Office of Orphan Products Development granted orphan-drug designation for the treatment of soft tissue sarcoma (STS) to the three active moieties comprising INT230-6, cisplatin, vinblastine sulfate, and the diffusion enhancer SHAO-FA (8-((2-hydroxybenzoyl) amino) octanoate).
Posted In: INTS
