Alpha Radiation Emitters Device (DaRT) for the Treatment of Cutaneous, Mucosal or Superficial Soft Tissue Neoplasia.

NCT ID: NCT03889899

Last Updated: 2025-12-02

Basic Information

• Recruitment Status: RECRUITING
• Clinical Phase: NA
• Total Enrollment: 30 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-10-21
• Study Completion Date: 2026-09-30

Brief Summary

A unique approach for cancer treatment employing intratumoral diffusing alpha radiation emitter device for superficial cutaneous, mucosal or soft tissue neoplasia

Detailed Description

This will be a prospective, open label, single arm, controlled study, assessing the safety and efficacy of diffusing alpha emitters radiation therapy (DaRT) delivered through radioactive seeds inserted into the tumor.

This approach combines the advantages of local intratumoral irradiation of the tumor, as used in conventional brachytherapy, with the power of the alpha radiation emitting atoms, that will be introduced in quantities considerably lower than radiation therapy already used in patients.

Superficial lesions with histopathological confirmation of malignancy will be treated using DaRT seeds.

Reduction in tumor size 70 days after DaRT insertion will be assessed. Safety will be assessed by the incidence, severity and frequency of all Adverse Events (AE).

Conditions

Skin Cancer; Mucosal Neoplasm of Oral Cavity; Soft Tissue Neoplasm

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

DaRT Seeds

Intratumoral Diffusing alpha-emitters Radiation Therapy (DaRT) Seeds

Group Type: EXPERIMENTAL

Radiation: Diffusing Alpha Radiation Emitters Therapy (DaRT)

Intervention Type: DEVICE

An intratumoral insertion of a seed(s), loaded with Radium-224, securely fixed in the seeds. The seeds release by recoil into the tumor short-lived alpha-emitting atoms.

Interventions

Radiation: Diffusing Alpha Radiation Emitters Therapy (DaRT)

An intratumoral insertion of a seed(s), loaded with Radium-224, securely fixed in the seeds. The seeds release by recoil into the tumor short-lived alpha-emitting atoms.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Subjects with histopathological confirmation of primary or secondary malignant cutaneous neoplastic lesions, or oral cavity mucosal tumors, or superficial soft tissue sarcoma.
• Subjects with a tumor size ≤ 7 centimeters in the longest diameter.
• Measurable disease according to RECIST v1.1.
• Subjects over 18 years old.
• Subjects' ECOG Performance Status Scale is < 2.
• Subjects' life expectancy is more than 6 months.
• Platelet count ≥100,000/mm3.
• International normalized ratio of prothrombin time ≤1.8.
• Creatinine ≤1.9 mg/dL.
• Women of childbearing potential (WOCBP) will have evidence of negative pregnancy test.
• Subjects are willing to sign an informed consent form.

Exclusion Criteria

• Subject has a tumor of Keratoacanthoma histology.
• Patients with significant comorbidities that the treating physician deems may conflict with the endpoints of the study (e.g., poorly controlled autoimmune diseases, vasculitis, etc.)
• Patients undergoing systemic immunosuppressive therapy excepting intermittent, brief use of systemic corticosteroids
• 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.
• High probability of protocol non-compliance (in opinion of investigator).
• Subjects not willing to sign an informed consent.
• Women who are pregnant or breastfeeding.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Alpha Tau Medical LTD.

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Tomer Charas, MD

Role: PRINCIPAL_INVESTIGATOR

Radiotherapy unit at Rambam Health Care Campus, Israel

Locations

RAMBAM Health Care Campus

Haifa, , Israel

Site Status: RECRUITING

Countries

Israel

Central Contacts

Liron Dimnik

Role: CONTACT

LironD@alphatau.com

+972-2-373-7000

Facility Contacts

Tomer Charas, MD

Role: primary

t_charas@rmc.gov.il

+972-4-777-6505

Other Identifiers

CTP-CMN-03

Identifier Type: -

Identifier Source: org_study_id