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Breast CancerPhase 1/2CK-SAPBINCT02365714

CyberKnife Stereotactic Accelerated Partial Breast Irradiation (SAPBI)

A Phase 1/2 study testing CK Stereotactic Accelerated Partial Breast Irradiation in people with Breast Cancer and DCIS, run by Georgetown University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study will prospectively evaluate the technical feasibility, acute toxicity, late effects and oncologic outcomes of CyberKnife Stereotactic Accelerated Partial Breast Irradiation (CK-SAPBI) in early stage breast cancer. Read more about this study

Who is it for?
Ages 50 to 99 years, women only
Conditions the study is for
Breast Cancer, DCIS, Invasive Ductal Carcinoma
What is being tested?
CK Stereotactic Accelerated Partial Breast Irradiation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
2 participants
Where
1 siteUnited States
Study dates
Feb 2015to Jan 2017
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 99 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • -Newly diagnosed Stage 0 or I breast cancer.
  • On histological examination, the tumor must be DCIS or invasive non-lobular carcinoma of the breast
  • Surgical treatment of the breast must have been wide excision, lumpectomy or partial mastectomy
  • Age 50 years or greater
  • ER positive: (≥1% of breast tumor cells express ER in their nuclei)
  • PR (progesterone receptor) positive: (≥ 1% of breast tumor cells express PR in their nuclei)
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  • Her2 negative (IHC 0-1+; for IHC 2+, FISH (fluorescence in situ hybridization) must be non-amplified)
  • Subjects with invasive tumors should undergo axillary sentinel lymph node evaluation or axillary lymph node dissection.
  • Negative inked surgical margins of excision or re-excision, clear of invasive tumor (no cells on ink) and DCIS by at least 1 mm
  • Negative post-excision or post-reexcision mammography if cancer presented with malignancy-associated microcalcifications with no remaining suspicious calcifications in the breast before radiotherapy. Alternatively, a specimen radiograph can be obtained showing all the suspicious calcifications.
  • No involved axillary lymph nodes, N0(i+) allowed
  • Enrollment and the plan to initiate of CyberKnife therapy within 12 weeks of the last breast cancer surgery.
  • Target lumpectomy cavity/whole breast reference volume must be <30% based on treatment planning CT
  • Signed study-specific informed consent form

Who cannot join

  • -Patients with invasive lobular carcinoma or nonepithelial breast malignancies such as sarcoma or lymphoma.
  • Patients with tumors greater than 2 cm
  • Patients with surgical margins which cannot be microscopically assessed or not cleared by at least 2mm at pathological evaluation.
  • Patients with multicentric carcinoma or with other clinically or radiographically suspicious areas in the ipsilateral breast unless confirmed to be negative for malignancy by biopsy. Breast MRI will be recommended to exclude multicentric disease and additional suspicious areas will require biopsy to exclude malignancy.
  • Patient with lymphovascular space invasion (LVSI).
  • Patients with involved axillary nodes.
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  • Patients with collagen vascular diseases.
  • Patient with known deleterious BRCA1/2 mutations or known mutations in other high penetrance genes (TP53, STK11, PTEN-phosphatase and tensin homolog, CDH1)
  • Patients with prior ipsilateral breast irradiation.
  • Patients with prior ipsilateral thoracic irradiation.
  • Patients with Paget's disease of the nipple.
  • Patients with diffuse suspicious microcalcifications.
  • Patients with suspicious microcalcifications remaining on the post-excision mammogram.
  • Patients receiving (neo)adjuvant systemic therapy other than hormonal therapy
  • Patients with oncoplastic reconstruction and absence of surgical clips

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Georgetown University Hospital

    Washington D.C., District of Columbia, 20008

Other trials in United States

About this study

Official title: A Pilot Study of Stereotactic Accelerated Partial Breast Irradiation (SAPBI) for Post-Menopausal Women (>50 y/o) With Ductal Carcinoma in Situ (DCIS) or Early Stage Breast Cancer

This study will prospectively evaluate the technical feasibility, acute toxicity, late effects and oncologic outcomes of CyberKnife Stereotactic Accelerated Partial Breast Irradiation (CK-SAPBI) in early stage breast cancer. It will evaluate quality of life (QOL) issues as they relate to treatment-related side effects and cosmetic results.

Read the detailed description

This study will determine the feasibility, acute and late toxicity as well as oncologic outcomes following CK-SAPBI.

Being tested
CK Stereotactic Accelerated Partial Breast Irradiation
Medical subject headings
Breast Neoplasms, Carcinoma, Intraductal, Noninfiltrating

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CK Stereotactic Accelerated Partial Breast IrradiationRadiation

    Also called CyberKnife, SAPBI

    Adjuvant radiation therapy will be delivered to the region of the lumpectomy cavity once daily for 5 treatments over 5-10 days.

Study groups in NCT02365714
Study groupRoleWhat they receive
Treatment-RadiationOtherCyberKnife (CK) Stereotactic Accelerated Partial Breast Irradiation. Adjuvant radiation therapy delivered to the region around the lumpectomy cavity. Patients will receive 30 Gy in 5 fractions over 5-14 days.
Receives: Radiation: CK Stereotactic Accelerated Partial Breast Irradiation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The Primary Endpoint for This Study is the Percentage of Enrolled Subjects in Whom CyberKnife SAPBI PBI is Technically Feasible to Deliver and Complete Treatment

    Only one of two patients were able to undergo CyberKnife SAPBI. We are measuring the percentage of enrolled subjects in whom CyberKnife SAPBI PBI is technically feasible to deliver and complete treatment

    Measured: Enrollment to 24 months

  2. Feasibility

    How many patients were able to undergo CK SAPBI

    Measured: 2 years

Secondary outcomes (1)
  1. Ipsilateral Breast Recurrence

    No patients have recurred to date.

    Measured: 1 month post radiation treatment through 5 years post treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Feb 2015 (estimated)
  2. Study startFeb 2015
  3. Primary completionJan 2017
  4. Study completionJan 2017

Why it stopped: Slow accrual

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
2 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02365714
Sponsor's protocol ID
CRC012015-02
Acronym
CK-SAPBI
Status last verified
Jun 2016
First submitted
11 Feb 2015
Last updated
13 Apr 2018
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing CK Stereotactic Accelerated Partial Breast Irradiation in people with Breast Cancer and DCIS, run by Georgetown University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 14 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 13 Apr 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Apr 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The Primary Endpoint for This Study is the Percentage of Enrolled Subjects in Whom CyberKnife SAPBI PBI is Technically Feasible to Deliver and Complete Treatment (time frame: Enrollment to 24 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Apr 2018; AzTrials last refreshed its copy on 5 Nov 2026.

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