Two Fraction Prostate SBRT With DIL SIB

NCT ID: NCT05864196

Last Updated: 2026-01-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-17

Study Completion Date

2030-06-30

Brief Summary

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Phase I/Ib, single arm trial of Two-Fraction Stereotactic Body Radiation Therapy (SBRT) with an MRI directed, dominant intraprostatic lesion (DIL), simultaneous integrated boost (SIB) based on genomic classification in the treatment of localized prostate cancer. The primary purpose of this study is to determine the feasibility and safety of two fraction SBRT in patients with localized prostate cancer.

Detailed Description

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Conditions

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Prostate Cancer

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Men with low to intermediate risk prostate cancer

Once a patient is deemed eligible, they will be scheduled for treatment with SBRT, which should be completed within 14 days of screening. Follow up will occur 30 days post radiation and every 4 months, post- radiation for the first 2 years. After the first 2 years of follow up, visits will occur every 6 months until year 5.

Group Type EXPERIMENTAL

Two-Fraction Stereotactic Body Radiation Therapy (SBRT)

Intervention Type RADIATION

Two-fraction SBRT with an MRI directed, dominant intraprostatic lesion, simultaneous integrated boost (SIB) based on genomic classification in the treatment of localized prostate cancer.

Interventions

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Two-Fraction Stereotactic Body Radiation Therapy (SBRT)

Two-fraction SBRT with an MRI directed, dominant intraprostatic lesion, simultaneous integrated boost (SIB) based on genomic classification in the treatment of localized prostate cancer.

Intervention Type RADIATION

Eligibility Criteria

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Inclusion Criteria

* Patient age greater than or equal 18
* Localized adenocarcinoma of the prostate
* Biopsy-proven diagnosis of prostate adenocarcinoma
* Low to intermediate risk National Comprehensive Cancer Network (NCCN) disease

* TX-T2c-8th addition staging
* PSA\<20 ng/ml
* Grade group 3 or less
* Proper rectal space replacement required as determined by the treating radiation oncologist
* Prostate size less than 60cc defined at time of simulation based on MRI
* Patient ability to undergo MRI and documented dominant Prostate Imaging Reporting and Data System (PI-RADS) 3 or higher lesion

\-- Exception is very low risk, low risk, or favorable intermediate risk with a low to intermediate decipher score in which case an SIB is not utilized
* Androgen-deprivation therapy (ADT) is left to the discretion of the treating radiation oncologist
* Agreement to use effective contraceptive methods such as condoms and spermicidal foam, intrauterine device, or for their partner to use prescription birth control pills
* Ability to give informed consent

Exclusion Criteria

* High risk disease
* Pelvic lymph node involvement
* Prophylactic lymph node irradiation requirement as determined by the treating radiation oncologist
* Evidence of clinical or radiological extracapsular extension or seminal vesicle invasion
* Prior radiation to the pelvis
* Prior malignancies within the last 5 years
* Inability to meet pre-specified 2 fraction DVH constraints
* Prostate size \> 60cc as measures at treatment planning MRI
* Active significant inflammatory bowel disease (IBD) or rheumatological disease
* Prior prostate surgeries

* Previous uro lift
* Transurethral resection of the prostate (TURP) within 6 months of SBRT
* "Reasonable" urinary, bowel, and erectile function as defined by the pre-treatment EPIC questionnaire (\>50 overall summary score for each domain)
* Men of reproductive potential may not participate unless they agree to use an effective contraceptive method
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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NYU Langone Health

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jonathan Lischalk

Role: PRINCIPAL_INVESTIGATOR

NYU Langone Health

Locations

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NYU Langone Hospital - Long Island

Mineola, New York, United States

Site Status RECRUITING

NYCyberKnife at Perlmutter Cancer Center

New York, New York, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Vianca Santos, MPH

Role: CONTACT

212-496-5845

Other Identifiers

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22-01306

Identifier Type: -

Identifier Source: org_study_id

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