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Low Dose Radiation Therapy

Phase 1

Alzheimer Dementia | Unknown | Neurology |Precision BioSciences, Inc.|Last Updated: Jul 9, 2026

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLEDDMC
Total Trials1
Total Enrollment50

FDA Designations

No designations recorded

Clinical trial landscape

Low Dose Radiation Therapy · 1 trial · 5 indications

Phase 1 1
NCT07693140Low-Dose Radiotherapy for Alzheimer's DiseaseAlzheimer Dementia
RECRUITING50 Analytics
PHASE1RECRUITING
Low-Dose Radiotherapy for Alzheimer's Disease
Alzheimer DementiaUnlock trial analytics

Study Endpoints

Primary Endpoints

Safety, As Measured By Incidence of Grade 3 or Higher Treatment-Related Adverse Events
From the first induction radiotherapy fraction through 30 days after the final monthly maintenance fraction (acute monitoring period), approximately 13 to 15 months

The primary endpoint is the proportion of participants who experience at least one treatment-related adverse event of Grade 3 or higher, graded per the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0. Adverse events are assessed continuously and attributed to study treatment (induction plus monthly maintenance low-dose whole-brain radiotherapy) by the investigator. Feasibility is defined by an acceptable rate of Grade 3 or higher treatment-related events: 15% or lower during the Phase I lead-in (first 10 participants) and 20% or lower across the full study population (N=50). Safety is monitored continuously using a Bayesian Beta-Binomial model; the study pauses for Data Safety Monitoring Board review if the posterior probability that the true Grade 3 or higher rate exceeds 20% reaches 0.80 or greater.

Secondary Endpoints

Cognitive Preservation, As Measured By Change in Montreal Cognitive Assessment (MoCA) Score From Baseline to Month 12
Baseline to Month 12, with MoCA assessed longitudinally across the maintenance period and at a standalone Month 12 cognitive endpoint visit
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Treatment GroupEXPERIMENTALLow dose radiotherapy in 10 induction treatments followed by 10 maintenance treatments spread across each month starting at 2 month post- induction

Interventions

NameTypeDescription
Low Dose Radiation TherapyRADIATIONLow dose whole brain radiotherapy delivered as an induction course of 10 fractions followed by 12 months of monthly maintenance LDRT in 10 fractions starting 2 months post-induction
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Eligibility Criteria

Age Range50 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: 1. Age ≥50 years at time of enrollment 2. Externally confirmed diagnosis by a neurologist or geriatric psychiatrist (at Renaissance Institute, collaborating neurologist Dr. Sherif Makar, MD of Charis Neurology is available for diagnostic consultation) of one of the following: a....

Countries:United States
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Frequently asked questions about Low Dose Radiation Therapy

What is Low Dose Radiation Therapy used for in Alzheimer Dementia?

Low Dose Radiation Therapy is an investigational treatment being studied for Alzheimer Dementia. It is currently in Phase 1 clinical development. The therapy is being evaluated in a clinical trial enrolling 50 participants with Alzheimer's disease and related dementias in the United States.

Who is developing Low Dose Radiation Therapy?

Low Dose Radiation Therapy is being developed by Precision BioSciences, Inc., a biopharmaceutical company traded on the NASDAQ under the ticker symbol DTIL. The company is conducting a Phase 1 clinical trial of this therapy for Alzheimer Dementia.

What phase is Low Dose Radiation Therapy in?

Low Dose Radiation Therapy is in Phase 1 clinical development. It is an investigational therapy and has not been approved by regulatory authorities. The ongoing Phase 1 trial is currently recruiting participants in the United States.

What clinical trials is Low Dose Radiation Therapy in?

Low Dose Radiation Therapy is being studied in a single Phase 1 clinical trial with the identifier NCT07693140, titled "Low-Dose Radiotherapy for Alzheimer's Disease." The trial is recruiting 50 participants aged 50 years and older with Alzheimer Dementia in the United States.

Is Low Dose Radiation Therapy being studied in a randomized controlled trial?

No, the Phase 1 clinical trial of Low Dose Radiation Therapy for Alzheimer Dementia is not randomized and does not use a control group. It is an uncontrolled, open-label study. The trial is not double-blind and does not involve a placebo or active comparator.