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RecruitingNCT05528133Updated Sep 25, 2026

Genomically Guided Radiation Therapy in the Management of Triple Negative Breast Cancer

A Phase 2 interventional study of Genomically Guided Radiation Therapy and Genomically Guided Radiation Therapy in Triple Negative Breast Cancer, sponsored by H. Lee Moffitt Cancer Center and Research Institute. Recruiting at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-25.

Sponsored by H. Lee Moffitt Cancer Center and Research Institute · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Jan 2023; still recruiting 3 years 9 months later.
Updated Sep 25, 2026Primary completion movedStudy completion movedGo to Updates ↓
Phase
Phase 2
Study type
Interventional
Enrollment
86
Allocation
Non-randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of the study is to determine the feasibility of genomically guided radiation therapy (RT) in people with triple negative (HER2 negative, hormone receptor negative) breast cancer undergoing breast conservation therapy.

02

Conditions studied

  • Triple Negative Breast Cancer

Keywords

  • Breast Cancer
  • Genomically Guided Radiation
03

In context

Triple Negative Breast Neoplasms

1,219 studies on the registry are indexed under Triple Negative Breast Neoplasms; 446 are open to participants now.

This study's planned enrollment of 86 is above the median of 60 across 1,053 interventional studies indexed under Triple Negative Breast Neoplasms.

Browse Triple Negative Breast Neoplasms studies →

Lead sponsor

H. Lee Moffitt Cancer Center and Research Institute is the lead sponsor of 540 studies on the registry; 75 are open to participants now.

Of its 99 completed or terminated interventional studies of FDA-regulated products, 57 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Participants should have undergone breast conservation therapy with a lumpectomy and axillary evaluation to consist of a sentinel node or axillary dissection
  • Confirmation of Triple Negative (TN) breast cancer by tissue biopsy
  • Adequate tissue to calculate RSI
  • To fulfill the requirement of - disease, a breast cancer must not demonstrate, at initial diagnosis or upon subsequent biopsy, overexpression of HER2 by either IHC or in-situ hybridization as defined by the ASCO / CAP Guidelines
  • To fulfill the requirement of hormone receptor (HR)- disease, a breast cancer must express (\<10%), by immunohistochemistry (IHC), the hormone receptors (estrogen receptor [ER] and progesterone receptor [PR]) as defined in the American Society of Clinical Oncology (ASCO) / College of American Pathologists (CAP) Guidelines
  • >16 weeks
  • ≥ 70
  • Age ≥ 18 years
  • Participants with surgery within 14 days should have recovered from all effects of the surgery and be cleared by their surgeon
  • There is no limit on prior systemic therapies
  • Women of and sexually active males must commit to the use of effective while on study
  • Ability to sign an form, which can be signed by a family member or health care proxy. Informed consent must be given before study enrollment

Exclusion criteria

Exclusion Criteria:

  • Major surgery or significant traumatic injury that has not been recovered from 14 days before study initiation
  • Women who are pregnant or breastfeeding
  • Positive surgical margins
  • History of allergy or to any of the study drugs or study drug components
  • breast cancer
Terms in these criteria, in plain language(9)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

HER2

HER2 is a protein, made from the ERBB2 gene, that drives the growth of some cancers. A study may look for a level of the protein, extra copies of the gene, or a particular change in it.

In breast cancer, protein tests are read as HER2-positive, HER2-low or HER2-negative; other cancers use their own rules. Check which test result the study requires.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
86 participants (estimated)

Study arms

  • Experimental
    Radiosensitivity Index optimized

    Participants will be assigned to optimized arm based on their RSI score. Participants will receive whole breast radiation therapy with or without regional lymph node irradiation as appropriate with or without a boost to the lumpectomy cavity.

    Radiation: Genomically Guided Radiation Therapy

  • Active comparator
    Radiosensitivity Index not optimized

    Participants will receive standard of care whole breast radiation therapy with or without regional lymph node irradiation as appropriate with a boost to the lumpectomy cavity.

    Radiation: Genomically Guided Radiation Therapy

Interventions

  • RadiationGenomically Guided Radiation Therapy

    Participants will receive treatment 5 days per week, in once daily fractions. The total dose will be 50 Gy in 25 fractions or 42.56 Gy in 16 fractions with or without a boost of 10 Gy in 5 fractions to the cavity.

  • RadiationGenomically Guided Radiation Therapy

    Participants will receive treatment 5 days per week, in once daily fractions. The total dose will be 50 Gy in 25 fractions or 42.56 Gy in 16 fractions with a boost of 10 Gy in 5 fractions to the cavity.

06

What researchers measure

Primary outcomes

  1. Local Control

    Local control will be defined as lack of progression in the ipsilateral breast as documented by response assessment imaging

    Time frame: At 3 Years

Secondary outcomes

  1. Overall Survival (OS)

    OS will be measured from the date of study initiation to the date of death due to any cause.

    Time frame: Up to 5 Years

  2. Progression Free Survival (PFS)

    PFS is measured from the date of first treatment to the date of first observation of PD or death due to any cause.

    Time frame: Up to 5 years

  3. Distant Control

    Distant control will be defined by lack of progression outside the irradiated treatment field

    Time frame: Up to 5 Years

  4. Quality of Life following Genomically Guided Dose Personalization

    Quality of life (QOL) will be assessed through the completion of the Functional Assessment of Cancer Therapy for Breast Cancer questionnaire (FACT-B). This quality of life questionnaire contains questions from the FACT-General (G) questionnaire in the domains of physical, social/family, emotional, and functional well-being as well as additional questions pertaining to patients with breast cancer. The questionnaire will be completed at screening, during protocol therapy and at follow-up visits

    Time frame: Up to 5 Years

07

Study locations

2 of 2 sites recruiting
  • Morton Plant Hospital - Baycare Health System
    Clearwater, Florida 33756, United States
    Recruiting
  • Moffitt Cancer Center
    Tampa, Florida 33612, United States
    Recruiting
    • Kamran Ahmed, MD · Principal investigator
    • Ronica H Nanda, MD · Principal investigator
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

1 registry update since Sep 25, 2026
Primary completion
May 2028→Sep 2029
Sep 25, 2026
Study completion
May 2028→Sep 2029
Sep 25, 2026
Show all 1 update
  1. Sep 25, 2026
    Primary completion May 2028→Sep 2029
    Study completion May 2028→Sep 2029
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT05528133
Responsible party
Sponsor
First posted
Sep 6, 2022
Start date
Jan 25, 2023
Primary completion
Sep 2029 (estimated)
Completion
Sep 2029 (estimated)
Last update
Sep 25, 2026

Study contacts

Robin Dowell
Contact
Robin.Dowell@moffitt.org
813-745-0393
Kamran Ahmed, MD
Contact
Kamran.Ahmed@moffitt.org
813-745-3320
Kamran Ahmed, MD
principal investigator · Moffitt Cancer Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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