Actively Recruiting

Phase Not Applicable
Age: 18Years +
All Genders
NCT05047094

Alpha Radiation Emitters Device (DaRT) in Combination With Check Point Inhibitor for the Treatment of Recurrent Unresectable or mHNSCC

Led by Alpha Tau Medical LTD. · Updated on 2026-04-06

48

Participants Needed

3

Research Sites

291 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

A unique combinational treatment for cancer employing intratumoral diffusing alpha radiation emitter device with check point inhibitor for recurrent unresectable or metastatic Head and Neck Squamous Cell Carcinoma

CONDITIONS

Official Title

Alpha Radiation Emitters Device (DaRT) in Combination With Check Point Inhibitor for the Treatment of Recurrent Unresectable or mHNSCC

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Pathologically confirmed metastatic or recurrent unresectable squamous cell carcinoma of the head and neck
  • Ability to provide a tissue sample from archive or fresh biopsy
  • Target lesion suitable for DaRT seed implantation
  • Brachytherapy indication approved by multidisciplinary team
  • Target lesion meets criteria according to RECIST v1.1
  • Age 18 years or older
  • ECOG Performance Status of 2 or less
  • Life expectancy longer than 6 months
  • White Blood Count at least 3500/µl and granulocytes at least 1500/µl
  • Platelet count at least 100,000/µl
  • Hemoglobin level at least 9 g/dl
  • Creatinine clearance at least 60 cc/min
  • AST and ALT levels less than or equal to 2.5 times upper limit normal or up to 5 times for liver metastases
  • INR less than 1.4 for patients not on Warfarin
  • Willingness and ability to sign informed consent
  • Women of childbearing potential must have negative pregnancy test before Ra-224 implantation and use acceptable contraception for 3 months after brachytherapy
Not Eligible

You will not qualify if you...

  • Previous treatment for metastatic disease (allowed for recurrent unresectable disease if at least 6 months have passed since prior treatment)
  • Presence of brain metastases
  • Combined Positive Scores (CPS) less than 1
  • Known contraindications to radiotherapy
  • Prior therapy with anti-PD-L1, anti-PD-L2, anti-CTLA-4 antibodies, or similar
  • History of severe hypersensitivity to monoclonal antibodies
  • Known hypersensitivity to any components of DaRT
  • Active tuberculosis infection
  • Additional progressing malignancy requiring active treatment, except certain skin or cervical cancers
  • Immunodeficiency or current immunosuppressive therapy including prednisone over 10 mg/day within 14 days prior
  • Significant cardiovascular disease or recent myocardial infarction within 12 months
  • Uncontrolled illnesses or psychiatric/substance abuse disorders interfering with trial participation
  • Treatment requirement conflicting with study endpoints
  • Known HIV infection
  • Active hepatitis B or C infection
  • Pregnancy or breastfeeding
  • Failure to agree to use adequate contraception before and during study and for 6 months after last Pembrolizumab dose

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 3 locations

1

Sharett institute, Hadassah University Hospital - Ein-Kerem

Jerusalem, Israel, 91120

Actively Recruiting

2

Sheba Medical Center

Ramat Gan, Israel

Actively Recruiting

3

Tel-Aviv Medical Center

Tel Aviv, Israel

Not Yet Recruiting

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Research Team

T

Tami Granot

CONTACT

L

Liron Dimnik

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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