Favorable efficacy and safety reported in a small sample of triple negative breast cancer ("TNBC") patients receiving INT230-6 prior to the standard of care ("SOC") compared to SOC alone in the INVINCIBLE-4 Study (as defined below)
Approval to resume enrollment obtained in the INVINCIBLE-4 Study; plans to resume enrollment in the second quarter of 2026
Decision to resume enrollment in a limited number of U.S. sites in the INVINCIBLE-3 Study (as defined below) by the third quarter of 2026
SHELTON, Conn., May 7, 2026 /PRNewswire/ -- Intensity Therapeutics, Inc. ("Intensity" or "the Company") (NASDAQ:INTS), a late-stage clinical biotechnology company focused on the discovery and development of novel intratumoral cancer therapies that are designed to kill tumors and increase immune system recognition of cancers using its proprietary non-covalent conjugation technology, announces first quarter 2026 financial results and provides a corporate update.
Corporate Update
INVINCIBLE-4 Study: Phase 2 randomized open-label, multicenter study to analyze the clinical activity, safety, and tolerability of INT230-6 given before administration of the SOC treatment in patients with early-stage, operable triple negative breast cancer and SOC alone.
In March 2026, the Company reported the following:
Preliminary observations of the INVINCIBLE-4 Study showed that five (5) out of seven (7) patients (71.4%) who received INT230-6 prior to SOC ("Cohort A") achieved a pathological complete response ("pCR") whereas two (2) out of six (6) (33%) patients in the SOC arm alone ("Cohort B") achieved a pCR, with one patient still to be evaluated.
Forty-four percent (44%) fewer grade 3 or higher adverse events were observed in Cohort A compared to Cohort B.
A protocol amendment was submitted to Swissmedic, Switzerland's regulatory authority, and the Switzerland Ethics Committee to resume enrollment. Full approval to resume enrollment was granted on March 26, 2026. The Company plans to resume enrollment in the second quarter of 2026.
The Company expects presentation of more detailed results for the seven (7) Cohort A patients at a future oncology conference.
INVINCIBLE-3 Study: Phase 3 open-label, randomized study testing INT230-6 as monotherapy compared to the SOC drugs in second- and third-line treatment for specific soft tissue sarcoma subtypes.
In March 2025, the Company paused new site activations and patient enrollments due to funding constraints. Before this pause, the trial had enrolled 21 patients. The Company has continued to treat patients enrolled in this study, maintain the database, conduct pharmacovigilance, and conduct other study-related activities in cooperation with its third-party contract research organizations at significantly reduced ongoing costs during this pause. In April 2026, the Company decided to resume enrollment in the INVINCIBLE-3 Study in a limited number of U.S. sites by the third quarter of 2026, and has prioritized commencing full patient enrollment and site activations in this study once sufficient incremental funding is obtained.
Lewis H. Bender, Founder, President, and CEO, stated, "The Company made excellent progress in the first quarter. We announced early data from the INVINCIBLE-4 Study, our randomized controlled study in TNBC, showing the possibilities for INT230-6 to increase efficacy while also potentially improving safety. We are now seeking additional patients in our INVINCIBLE-4 Study in Switzerland and expect to initiate enrollment in France in the second or third quarter of 2026. Further, after a successful funding campaign in 2025 and the establishment of a $60 million ATM facility in March 2026, we have made the decision to reinitiate enrollment of our INVINCIBLE-3 Study and plan to manage our cash burn judiciously. Both of our clinical trials focus on indications with high unmet medical need."
First Quarter 2026 Financial Results
Research and development expenses were $1.2 million for the three months ended March 31, 2026, compared to $2.2 million for the same period in 2025. The decrease was primarily due to lower INVINCIBLE-3 Study costs. In March 2025, the Company paused new site activations and patient enrollments in the INVINCIBLE-3 Study due to funding constraints. Prior to this pause, the trial had enrolled 21 patients. The Company has continued to treat all patients enrolled in this study in cooperation with our third-party contract research organizations during this pause. The Company plans to resume enrollment in the INVINCIBLE-3 Study in a limited number of U.S. sites by the third quarter of 2026, and has prioritized commencing full patient enrollment and site activations once sufficient funding is obtained. In addition, lower headcount-related costs in 2026 were entirely offset by an estimated bonus accrual during the three months ended March 31, 2026 compared to no bonus accrual during the three months ended March 31, 2025.
General and administrative expenses were $1.3 million for the three months ended March 31, 2026, compared to $1.2 million for the same period in 2025. The increase was due to an estimated bonus accrual during the three months ended March 31, 2026 compared to no bonus accrual during the three months ended March 31, 2025. This increase was partially offset by lower stock-based compensation and one-time expenses related to our reverse stock split in February 2026.
Overall, net loss was $2.4 million for the three months ended March 31, 2026, compared to a net loss of $3.3 million for the three months ended March 31, 2025.
As of March 31, 2026, cash and cash equivalents totaled $10.2 million.
About Triple Negative Breast Cancer in the Presurgical Setting
Women with aggressive forms of breast cancer, such as Triple Negative Breast Cancer ("TNBC"), are often counseled to undergo pre-surgical (neoadjuvant) systemic therapy in advance to reduce the risk of the disease returning. Having a pathological complete response, meaning the absence of live cancer at the time of surgery, has been shown to result in a lower risk of disease recurrence from 50% to 16% at 5 years. Approximately 11 to 17% of breast cancers test negative for estrogen receptors ("ER"), progesterone receptors (PR), and overexpression of human epidermal growth factor receptor 2 ("HER2") protein, qualifying ...
