GammaPod Dose Escalation Radiation for Early Stage Breast Cancer
Public ClinicalTrials.gov record NCT04234386. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
GCC 1926- Phase Ib Dose Escalation of Single-Fraction Preoperative Stereotactic Partial-Breast Irradiation for Early-Stage Breast Cancer
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The GammaPod machine was made by Xcision Medical Systems and is already FDA cleared to deliver focused radiation within the breast. Unlike current radiation machines, the GammaPod was designed specifically for treating breast cancer. The GammaPod can pinpoint radiation to the tumor bed in the breast which lowers the amount of radiation to nearby tissues. The machine uses a breast cup system to hold the breast in place for the treatment. This breast cup system was tested at MSGCCC (Marlene Stewart Greenebaum Comprehensive Cancer Center). Patients reported this system was more comfortable than an MRI or mammogram. The cup system was able to securely position the breast for treatment in the correct location. Receiving radiation before surgery is not a new concept in cancer management. Preoperative radiation has proven to result in improved disease free survival in certain types of cancer. With this study treatment, the participants will receive a dose of breast radiation therapy before the lumpectomy surgery. The lumpectomy surgery is where they remove the participant's tumor. The purpose of this research study is to determine a safe and effective dose of pre-operative radiation to treat early stage breast cancer. The pre-operative radiation is delivered using the FDA approved, GammaPod machine. The study will also determine the cosmesis of pre-operative radiation at different doses. Cosmesis is another word for looking at skin changes. The research team will use questionnaires for patient and physicians to assess adverse cosmesis changes as accurately as possible. In addition, the investigators are going to assess radiation related changes using photo software analysis tools and patients quality of life.
Study identification
- NCT ID
- NCT04234386
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 50 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 45 Years and older
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 14, 2021
- Primary completion
- Nov 30, 2028
- Completion
- Nov 30, 2030
- Last update posted
- Feb 19, 2026
2021 – 2030
United States locations
- U.S. sites
- 4
- U.S. states
- 1
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UMMC | Baltimore | Maryland | 21201 | Recruiting |
| Upper Chesapeake Health | Bel Air | Maryland | 21014 | Recruiting |
| Central Maryland Oncology Center | Columbia | Maryland | 21044 | Recruiting |
| Baltimore Washington Medical Center | Glen Burnie | Maryland | 21061 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04234386, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 19, 2026 · Synced Sep 13, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04234386 live on ClinicalTrials.gov.