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A Clinical Study to Assess the Efficacy and Safety of Alpha DaRT224 for the Treatment of Patients With Recurrent Cutaneous Squamous Cell Carcinoma

Launched by ALPHA TAU MEDICAL LTD. · Apr 11, 2022

Trial Information

Current as of September 12, 2025

Recruiting

Keywords

Squamous Cell Carcinoma Recurrent Squamous Cell Carcinoma Alpha Emitting Radiation Carcinoma, Squamous Skin Cancer Brachytherapy

ClinConnect Summary

This clinical trial is studying a new treatment called Alpha DaRT224 for patients with recurrent skin cancer known as cutaneous squamous cell carcinoma (SCC). The goal is to see how effective and safe this treatment is in shrinking tumors and improving the quality of life for patients who have not responded to other therapies. Up to 86 participants will be enrolled in this study, which will measure how well the treatment works over six months and monitor any side effects.

To be eligible for this trial, patients must be at least 18 years old and have a confirmed diagnosis of recurrent cutaneous SCC that has not improved with standard treatment options like surgery or radiation. The tumors should be small enough to be treated with the DaRT technique—specifically, they must be less than 7 cm in size, and participants should be able to undergo CT scans. During the trial, participants will receive the DaRT treatment and will be closely monitored for their response to the therapy, any potential side effects, and their overall health and quality of life. It's important for potential participants to discuss any medical conditions or treatments they are currently receiving with their healthcare provider to see if they qualify for this study.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • 1. Patients with recurrent cutaneous SCC histologically confirmed who have failed at least first line standard of care therapy who are not indicated for surgery and standard radiation therapy, or non alpha radiation brachytherapy technologies, and for whom no curative systemic treatment is available
  • 2. Central histopathological confirmation within 6 months of enrollment provided no tumor treatment occurred between the biopsy and enrollment
  • 3. Measurable disease according to RECIST v 1.1.
  • 4. Ability to undergo a CT scan
  • 5. Tumor size ≤7 cm, at the longest diameter.
  • 6. Single lesion per subject.
  • 7. Targeted lesion must be technically amenable for complete coverage (including margins) by the DaRT seeds.Targets will be deemed technically amenable for complete coverage if there are entry and exit vectors for placement that are not hindered by bone or major vessels or other vital organs (eg. eye).
  • 8. Interstitial implant indication validated by multidisciplinary team.
  • 9. Eastern Cooperative Oncology Group (ECOG) Performance Status ≤2.
  • 10. Life expectancy ≥12 months.
  • 11. Subjects male/ female ≥18.
  • 12. Willing and have the ability to provide signed Informed Consent.
  • 13. Patients, male and female, with reproductive potential (including women who are menopausal for less than a year and not surgically sterilized), must practice acceptable effective methods of birth control, such as barrier methods, condom or diaphragm with spermicide or abstinence. Birth control should be continued for 3 months after the DaRT insertion visit.
  • 14. Women with childbearing potential must provide a negative pregnancy test during the screening period and up to V1, prior to the DaRT insertion procedure.
  • 15. Blood tests values:
  • Leucocytes ≥3000mm3,
  • Absolute neutrophil count ≥1500mm3,
  • Platelets ≥100,000 mm3,
  • Total bilirubin ≤ 1.5xULN (upper limit of normal)
  • Aspartate Aminotransferase (AST) ≤2.5xULN,
  • Serum Glutamic-Oxaloacetic Transaminase (SGOT) ≤2.5xULN,
  • Serum Glutamic-Pyruvic Transaminase (SGPT) ≤2.5xULN,
  • Alkaline Phosphatase ≤2.5xULN.
  • Creatinine ≤ 2.0xULN or Creatinine Clearance ≥60 ml/min.
  • INR (International Normalized Ratio) or Prothrombin time ≤1.5xULN.
  • Exclusion Criteria:
  • 1. Distant or nodal metastatic disease (according to the TNM \[tumor, nodes , and metastases\] staging system - N+ or M1 patients are excluded).
  • 2. T4 disease or perineural spread of disease
  • 3. Previously untreated cutaneous SCC indicated for surgery or radiation.
  • 4. Mucosal, vulvar, anal and penile SCC.
  • 5. Inability to fully cover the entire volume with DaRT seeds
  • 6. Inability to place DaRT seeds into tumor due to inaccessibility by presence of bones or major vessels or vital organs
  • 7. Inability to undergo a CT scan
  • 8. Patients undergoing systemic immunosuppressive therapy excepting intermittent, brief use of systemic corticosteroids.
  • 9. Patients receiving any of the following within 4 weeks of enrollment:
  • 1. Antineoplastic systemic chemotherapy or biological therapy
  • 2. Immunotherapy
  • 3. Investigational agents other than the study intervention
  • 4. Radiation therapy
  • 5. Live vaccines within 30 days prior to the first dose of trial treatment and while participating in the trial.
  • 10. Longest tumor diameter \>7 cm.
  • 11. Tumor with keratoacanthoma histology.
  • 12. Known hypersensitivity to any component of treatment.
  • 13. Clinically significant cardiovascular disease e.g., cardiac failure of New York Heart Association class III-IV, uncontrolled coronary artery disease, cardiomyopathy, uncontrolled arrhythmia, uncontrolled hypertension, history of myocardial infarction in the last 12 months.
  • 14. Any medical or Psychiatric illness, which in the opinion of the investigator would compromise the patient's ability to tolerate treatment and to adhere to the clinical trial protocol.
  • 15. Serious medical comorbidities that, in the opinion of the investigator, may affect subject compliance and/or interpretation of treatment safety or effectiveness.
  • 16. High probability of protocol non-compliance (in opinion of investigator).
  • 17. Volunteers participating in another interventional study in the past 30 days which might conflict with the endpoints of this study or the evaluation of response or toxicity of DaRT.
  • 18. Has a known additional malignancy that is progressing or requires active treatment. Exceptions include basal cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer.
  • 19. Patients do not agree to use adequate contraception (vasectomy or barrier method of birth control) prior to study entry and for 3 months after the DaRT insertion visit.
  • 20. Breastfeeding or pregnant women
  • 21. Tattoos or other identifying marks which can not be adequately hidden on digital photos

About Alpha Tau Medical Ltd.

Alpha Tau Medical Ltd. is a pioneering healthcare company specializing in innovative cancer treatment solutions, particularly through its proprietary Alpha DaRT (Diffusing Alpha-Emitters Radiation Therapy) technology. Focused on advancing the field of oncology, the company is dedicated to developing targeted therapies that enhance patient outcomes while minimizing side effects. With a commitment to rigorous clinical research and collaboration with leading medical institutions, Alpha Tau Medical aims to revolutionize cancer care by providing effective and efficient treatment options.

Locations

Rochester, Minnesota, United States

Columbus, Ohio, United States

Tampa, Florida, United States

Miami, Florida, United States

Little Rock, Arkansas, United States

Los Angeles, California, United States

Charlottesville, Virginia, United States

Haifa, Israel

Miami, Florida, United States

Atlanta, Georgia, United States

Albuquerque, New Mexico, United States

Boca Raton, Florida, United States

Jerusalem, Israel

Ramat Gan, Israel

Phoenix, Arizona, United States

Teaneck, New Jersey, United States

Germantown, Tennessee, United States

Cooperstown, New York, United States

Haifa, Israel

Toronto, Ontario, Canada

Hollywood, Florida, United States

Los Angeles, California, United States

Uniondale, New York, United States

Des Moines, Iowa, United States

West Palm Beach, Florida, United States

Houston, Texas, United States

Delray Beach, Florida, United States

Bellevue, Washington, United States

Petah Tikva, Israel

Gilbert, Arizona, United States

Miami, Florida, United States

Hackensack, New Jersey, United States

Phoenix, Arizona, United States

Queens, New York, United States

Houston, Texas, United States

Smithtown, New York, United States

Deland, Florida, United States

Delray Beach, Florida, United States

Rockaway Park, New York, United States

Patients applied

0 patients applied

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported

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