Alpha Tau Announces Alpha DaRT™ Treatment of First Two Patients in its Pivotal Multicenter Recurrent Skin Cancer (ReSTART) Trial

Alpha Tau Announces Alpha DaRT™ Treatment of First Two Patients in its Pivotal Multicenter Recurrent Skin Cancer (ReSTART) Trial

First two US patients with recurrent cutaneous squamous cell carcinoma have been treated at University Cancer Center in Houston, Texas

-Up to 86 patients to be enrolled in the U.S., Canada, Europe and Israel to assess the efficacy and safety of intratumoral Alpha DaRT for the treatment of patients with recurrent cutaneous squamous cell carcinoma

JERUSALEM, March 08, 2023 (GLOBE NEWSWIRE) — Alpha Tau Medical Ltd. (“Alpha Tau”, or the “Company”)  (NASDAQ: DRTS, DRTSW), the developer of the innovative alpha-radiation cancer therapy Alpha DaRT™, announced that the first two patients were enrolled and treated today in its pivotal multicenter trial, known as the ReSTART trial (Recurrent SCC Treatment with Alpha DaRT Radiation Therapy), for the treatment of recurrent cutaneous squamous cell carcinoma (cSCC). The patients were treated at the University Cancer Center in Houston, Texas.

The trial is intended to enroll up to 86 participants who have biopsy-proven recurrent cSCC who are not otherwise indicated for surgery or standard radiation therapy, and for whom no curative systemic treatment is available. The primary study endpoints include overall objective response rate, based on best overall response, duration of response at 6-months from initial observation of a response to Alpha DaRT insertion, and safety of the Alpha DaRT treatment. The study’s secondary objectives are to assess the progression-free survival and overall survival at 1-year following Alpha DaRT treatment, overall duration of response, local control, and quality of life. Additional information about the trial can be found at

Alpha Tau CEO Uzi Sofer commented, “Today marks an important milestone for the Company and paves our path forward towards our ultimate goal of U.S. regulatory approval. Moreover, being able to enroll the first two patients simultaneously in one site demonstrates the high unmet need in this patient population and is an important boost in our recruitment efforts. We are hopeful that the results of this study, together with the Breakthrough Device Designation from the FDA for the treatment of this indication, will allow us to gain FDA approval and make the Alpha DaRT treatment available as quickly as possible for patients who suffer from recurrent cSCC. In the coming year, we will continue to focus our efforts on three main areas: swift recruitment in the ongoing ReSTART study, targeting initial results from our internal organ clinical program such as the treatment of pancreatic and prostate cancers, and continued scale-up of our production capacity to allow for smooth and efficient production.”

“We remain committed to bringing new hope to patients in this very difficult to treat population. We would like to thank Dr. Mark D’Andrea and Dr. Lawrence Clarke and the dedicated staff at University Cancer Center in Houston for enrolling and treating the first patients in the ReSTART trial and look forward to the forthcoming results,” said Alpha Tau Chief Medical Officer, Dr. Robert Den.

Dr. Mark A. D’Andrea, radiation oncologist at University Cancer Center in Houston, commented, “I believe that Alpha DaRT can be a real breakthrough in the treatment of recurrent cSCC. These patients have exhausted the effective treatment options available to them, and Alpha DaRT may give these patients additional hope for a successful outcome. In my experience as a radiation oncologist, treatment with the Alpha DaRT is a quick and straightforward procedure that can often be done in the office setting or procedure room in the clinic without the need for hospitalization or a shielded radiation suite. The procedure is often done using a local anesthetic, with the patient returning after 2 weeks for removal of the sources. The patient should then be able to return to a normal daily routine quickly.”