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Breast CancerNCT00388115

Radiofrequency Ablation in Treating Patients With Early Invasive Breast Cancer or Ductal Carcinoma in Situ

A study testing conventional surgery, neoadjuvant therapy and radiofrequency ablation in people with Breast Cancer, run by University of California, Davis at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

RATIONALE: Radiofrequency ablation uses a high-frequency, electric current to kill tumor cells. Giving radiofrequency ablation before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Breast Cancer
What is being tested?
conventional surgery, neoadjuvant therapy and radiofrequency ablation
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
1 siteUnited States
Study dates
Oct 2001to May 2007
Phase
Interventional
Are there results?
None posted in the registry

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Females of ages ≥18 years.
  • Core biopsy proven invasive breast cancer OR
  • Core biopsy proven low or intermediate grade DCIS.
  • Tumor less than or equal to 2.0 cm in diameter.
  • No prior surgical treatment for breast cancer within 30 days.
  • Life expectancy of > 10 years, not including the diagnosis of cancer.
Show all 9Show fewer
  • ECOG performance status of 0-2.
  • Informed consent given.
  • Multifocal invasive breast cancer patients are eligible. All tumors that are palpable or visualized by USS can be treated.

Who cannot join

  • Male subjects.
  • Ages < 18 years.
  • Breast tumor > 2.0 cm in diameter.
  • Evidence of distant metastatic disease.
  • Evidence of diffuse calcification suggestive of extensive or multifocal DCIS.
  • High grade DCIS or presence of comedo-necrosis because these lesions can be associated with invasive breast cancer, which would go undetected if the lesion is entirely destroyed by the RF ablation.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of California Davis Cancer Center

    Sacramento, California, 95817

Other trials in United States

About this study

Official title: A Pilot Study of Radiofrequency Ablation of Early Invasive and In Situ Breast Cancer

RATIONALE: Radiofrequency ablation uses a high-frequency, electric current to kill tumor cells. Giving radiofrequency ablation before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed.

PURPOSE: This clinical trial is studying how well radiofrequency ablation followed by surgery works in treating patients with early invasive breast cancer or ductal carcinoma in situ.

Read the detailed description

OBJECTIVES:

Primary

  • Determine the effectiveness of radiofrequency ablation (RFA), in terms of amount of tumor coagulated and viable cell count, in patients with early invasive breast cancer or low- or intermediate-grade ductal carcinoma in situ.

Secondary

  • Determine the size, configuration, and pathological features of human breast tumors after treatment with RFA.
  • Determine whether RFA energy applied to breast cancer will result in cancer cell death.
  • Determine whether tumor-free margins are achieved by RFA in these patients.
  • Determine the rate of acute toxicities to skin after surgery in patients treated with this regimen.

OUTLINE: This is a pilot study.

  • Pre-radiofrequency ablation (RFA) procedures: Patients undergo staging by MRI assessment to determine the size of their tumor. Patients with nonpalpable lesions must undergo placement of a metallic clip in the center of their tumor and a hook wire to guide surgical excision by intraoperative ultrasound imaging. Patients with invasive breast cancer undergo axillary lymph node dissection or sentinel lymph node biopsy (SLNB) for axillary lymph node staging. Patients with ductal carcinoma in situ proceed directly to RFA/resection since they do not require axillary staging.
  • RFA: Patients undergo RFA comprising insertion of a multiple-needle electrode into the breast tumor under direct guidance of ultrasonography and the metallic clip placed preoperatively in the lesion.
  • Surgical resection of RFA area: After RFA is completed, the electrode is removed and patients undergo wide local excision of the residual tumor or mastectomy.

After completion of study therapy, patients are followed periodically for up to 4 months.

PROJECTED ACCRUAL: A total of 30 patients will be accrued for this study.

Conditions
Breast Cancer
Being tested
conventional surgery, neoadjuvant therapy, radiofrequency ablation
Keywords
ductal breast carcinoma in situ, stage I breast cancer, stage II breast cancer, breast cancer in situ
Medical subject headings
Breast Neoplasms, Carcinoma, Intraductal, Noninfiltrating, Breast Carcinoma In Situ

What participants receive

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

  • conventional surgeryProcedure or surgery

    Standard of care lumpectomy or mastectomy following RFA

  • neoadjuvant therapyProcedure or surgery

    Standard of care lumpectomy or mastectomy following RFA

  • radiofrequency ablationProcedure or surgery

    Also called RFA

    A small diameter needle is inserted through the skin and directly into the tumor for the purpose of supplying RF current. Initial power of the RF generator will start at 5-10 watts. The power will increase by 5-10 watts every minute until impedance of the system automatically stops the RF treatment.

Study groups in NCT00388115
Study groupRoleWhat they receive
RFA prior to surgeryExperimentalNot described
Receives: Procedure: conventional surgery; Procedure: neoadjuvant therapy; Procedure: radiofrequency ablation

What is being measured

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

  1. Number and proportion of patients with viable cancer cells remaining in the resected specimen as measured by enzyme cell viability analysis and amount of tumor coagulated at post-treatment biopsy

    Measured: At completion of study

Secondary outcomes (3)
  1. Number and proportion of patients with uncoagulated tumor remnant at post-treatment biopsy

    Measured: At completion of study

  2. Number and proportion of patients with and without tumor in the margin

    Measured: At completion of study

  3. Rate of acute skin toxicity

    Measured: At completion of study

Timeline

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

  1. First posted13 Oct 2006 (estimated)
  2. Study startOct 2001
  3. Primary completionMay 2007
  4. Study completionMay 2007

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00388115
Sponsor's protocol ID
CDR0000505536
Other IDs
P30CA093373, UCD-123, UCD-200210277-6
Status last verified
Mar 2010
First submitted
12 Oct 2006
Last updated
29 Mar 2010
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing conventional surgery, neoadjuvant therapy and radiofrequency ablation in people with Breast Cancer, run by University of California, Davis 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 9 inclusion and 6 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: finished, as of the sponsor's last update on 29 Mar 2010. 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Number and proportion of patients with viable cancer cells remaining in the resected specimen as measured by enzyme cell viability analysis and amount of tumor coagulated at post-treatment biopsy (time frame: At completion of study). 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 29 Mar 2010.

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