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Radioactive seeds zaps tumors from the inside

NCT ID NCT03889899

Disease control Sponsor: Alpha Tau Medical LTD. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study is testing a device called DaRT that delivers alpha radiation directly into tumors. It is for people with certain skin cancers, mouth cancers, or soft tissue sarcomas that are up to 7 centimeters in size. The goal is to see if the tumors shrink and to check for side effects. About 30 participants will be enrolled.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Diffusing Alpha Radiation Emitters Therapy (DaRT) device
What this could lead to
If it works, this could offer a new, targeted radiation option for certain skin and soft tissue cancers that are hard to treat.
What could go wrong
This is an early study with only 30 people, so results may not apply to everyone. The treatment involves inserting radioactive seeds, which carries risks like infection or incomplete tumor response.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 30 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2020

Expected to finish

Sep 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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.

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Conditions

The condition(s) this trial relates to.

basal cell carcinoma Kaposi's sarcoma lip cancer oral cavity neoplasm skin cancer skin neoplasm soft tissue neoplasm Soft Tissue Neoplasms soft tissue sarcoma squamous cell carcinoma Squamous Cell Carcinoma of Head and Neck tongue cancer

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Mucosal neoplasm of oral cavity Skin cancer Soft tissue neoplasm

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • RAMBAM Health Care Campus

    RECRUITING

    Haifa, 3109601, Israel

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