Alpha Radiation Emitters Device (DaRT) for the Treatment of Cutaneous, Mucosal or Superficial Soft Tissue Neoplasia.
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ClinicalTrials.gov Identifier: NCT03889899 |
Recruitment Status :
Recruiting
First Posted : March 26, 2019
Last Update Posted : June 15, 2022
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Condition or disease | Intervention/treatment | Phase |
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Skin Cancer Mucosal Neoplasm of Oral Cavity Soft Tissue Neoplasm | Device: Radiation: Diffusing Alpha Radiation Emitters Therapy (DaRT) | Not Applicable |
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).
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 30 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Safety and Effectiveness Study of Intratumoral Diffusing Alpha Radiation Emitters for the Treatment of Malignant Cutaneous, Mucosal or Superficial Soft Tissue Neoplasia |
Actual Study Start Date : | October 21, 2020 |
Estimated Primary Completion Date : | June 2024 |
Estimated Study Completion Date : | September 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: DaRT Seeds
Intratumoral Diffusing alpha-emitters Radiation Therapy (DaRT) Seeds
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Device: 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. |
- Tumor response to DaRT [ Time Frame: 9-11 weeks after DaRT seed insertion. ]Assessment of the rate of malignant cutaneous, mucosal or superficial soft tissue tumors response using the Response Evaluation Criteria in Solid Tumors (RECIST) (Version 1.1)
- Adverse Events [ Time Frame: Time Frame: 9-11 weeks post DaRT insertion. ]The incidence, frequency, severity and causality of acute adverse events related to the DaRT treatment
- Assessment of the reduction in tumor volume [ Time Frame: 9-11 weeks follow-up visit. ]Assessment of the reduction in tumor volume based on CT / PET-CT measured tumor volume
- DaRT seeds placement. [ Time Frame: Day of insertion procedure. ]Assessment of the DaRT seeds placement by localization of the DaRT seeds in the tumor using CT imaging on the day of DaRT insertion.
- Change in quality of life [ Time Frame: Screening, DaRT removal and day 70 visits. ]Assessment of patient reported health-related Quality of Life outcome after DaRT, using QoL questionnaire Skindex-16 questionnaire score. An overall score ranging from 0 (best) to 100 (worst).
- Change in quality of life [ Time Frame: Screening, DaRT removal and day 70 visits. ]Assessment of patient reported health-related Quality of Life outcome after DaRT, using QoL questionnaire Skin Cancer Index (SCI) questionnaire score. An overall score ranging from 0 (best) to 100 (worst).

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
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.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03889899
Contact: Liron Dimnik | +972-2-373-7000 | LironD@alphatau.com |
Israel | |
RAMBAM Health Care Campus | Recruiting |
Haifa, Israel, 3109601 | |
Contact: Tomer Charas, MD +972-4-777-6505 t_charas@rmc.gov.il | |
Principal Investigator: Tomer Charas, MD |
Principal Investigator: | Tomer Charas, MD | Radiotherapy unit at Rambam Health Care Campus, Israel |
Responsible Party: | Alpha Tau Medical LTD. |
ClinicalTrials.gov Identifier: | NCT03889899 |
Other Study ID Numbers: |
CTP-CMN-03 |
First Posted: | March 26, 2019 Key Record Dates |
Last Update Posted: | June 15, 2022 |
Last Verified: | February 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Alpha radiation Squamous Cell Carcinoma SCC Skin Cancer Skin metastasis HNSCC Carcinoma, Squamous |
CMN Basal cell carcinoma Superficial sarcoma Kaposi sarcoma Cutaneous lesion Tongue cancer Lip cancer |
Neoplasms Skin Neoplasms Soft Tissue Neoplasms Mouth Neoplasms Neoplasms by Site |
Skin Diseases Head and Neck Neoplasms Mouth Diseases Stomatognathic Diseases |