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Breast NeoplasmsNCT00583843

Ultrasound Targeting for the Lumpectomy Cavity

An observational study of Breast Neoplasms, run by University of Iowa 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

Accurate targeting of treatment sites should increase local control by radiation therapy for breast-cancer lumpectomy patients. Currently, ultrasound localization is used for prostate cancer patients to locate the prostate before daily radiation treatments. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Breast Neoplasms
What is being tested?
Ultrasound
Type of treatment
Surgery or procedure
How many people
20 participants
Where
1 siteUnited States
Study dates
Jun 2006to Dec 2011
Phase
Observational
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

Study population: Women and men who have had lumpectomy for the definitive treatment of breast cancer and have a defined cavity from this procedure.

Who may be able to join

  • Ability to understand and the willingness to sign a written informed consent document.
  • Patients must have histologically or cytologically confirmed breast carcinoma with voluntarily elected breast conservation techniques (i.e., lumpectomy)
  • Age >18 years. Breast cancer, while not restricted only to adult women, is rare in the younger population.
  • Radiation indicated as a post-surgical adjuvant treatment for breast conservation.
  • Life expectancy of greater than 6 months.
  • Karnofsky of greater or equal to 60
  • The effects of radiation therapy on the developing human fetus at the recommended therapeutic dose can be abortifacient. For this reason, and because radiation therapy is known to be teratogenic, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.

Who cannot join

  • Patients who have not recovered from adverse events due to agents administered more than 4 weeks earlier.
  • The inability to visualize or reliably contour the lumpectomy cavity from the Radiation Oncology treatment planning CT scan.
  • Patients with known brain metastases should be excluded from this clinical trial because of their poor prognosis and because they often develop progressive neurologic dysfunction that would confound the evaluation of neurologic and other adverse events.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements in the opinion of the principal investigator.
  • Pregnant women are excluded from this study because radiation therapy has the potential for teratogenic or abortifacient effects. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with standard chemotherapeutic regimens (if applicable), breastfeeding should be discontinued if the mother is treated any adjuvant chemotherapy.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The University of Iowa Hospitals & Clinics

    Iowa City, Iowa, 52242

Other trials in United States

About this study

Official title: Evaluation of Change in the Lumpectomy Cavity During Radiation Therapy by Weekly Ultrasound and by Daily Ultrasound During the Radiation Boost Dose

Accurate targeting of treatment sites should increase local control by radiation therapy for breast-cancer lumpectomy patients. Currently, ultrasound localization is used for prostate cancer patients to locate the prostate before daily radiation treatments. There is now documented evidence that the lumpectomy site does change during the external radiation therapy. Thus, treatment efficacy should be increased by localizing the target, monitoring volume changes, and adjusting the radiation target prior to the boost radiation dose.

Read the detailed description

Study participants will have weekly ultrasounds performed of the lumpectomy cavity to determine shift and volume changed from the initial treatment-planning CT to the time of the radiation boost (approximately 4 weeks). These ultrasounds are done prior to their weekly doctor's appointment with Radiation Oncology.

When it is time to perform the radiation boost (when the radiation is more targeted to the lumpectomy cavity), the ultrasound will be done daily with the participant in treatment position. The SonArray system used for the ultrasound-driven targeting for prostate cancer will be utilized. If the lumpectomy cavity is observed, the ultrasound suggested shifts will be noted and compared to the shifts needed for standard clinical set up.

Once the subject has completed radiation therapy, the study participation is complete.

Being tested
Ultrasound
Keywords
Lumpectomy, Ultrasonography, Radiotherapy
Medical subject headings
Breast Neoplasms

What participants receive

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

  • UltrasoundProcedure or surgery

    Ultrasound weekly during initial fields of radiation, and daily during the boost phase.

Study groups in NCT00583843
Study groupRoleWhat they receive
UltrasoundThe group of women who are being followed by Ultrasound.
Receives: Procedure: Ultrasound

What is being measured

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

  1. Determine the volume change in lumpectomy cavity during the course of external beam radiation prior to delivery of the radiation boost.

    Measured: 7 weeks

Secondary outcomes (1)
  1. Determine by daily ultrasound if targeting of the CT-based boost field is inaccurate due to daily variation of subject position.

    Measured: 7 weeks

Timeline

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

  1. First posted31 Dec 2007 (estimated)
  2. Study startJun 2006
  3. Primary completionApr 2009
  4. Study completionDec 2011

Resources

More details

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

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00583843
Sponsor's protocol ID
200602784
Status last verified
Jan 2014
First submitted
20 Dec 2007
Last updated
16 Jan 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Jacobson G, Betts V, Smith B. Change in volume of lumpectomy cavity during external-beam irradiation of the intact breast. Int J Radiat Oncol Biol Phys. 2006 Jul 15;65(4):1161-4. doi: 10.1016/j.ijrobp.2006.02.009. Epub 2006 May 6.

    PubMed 16682143
  • Warszawski A, Baumann R, Karstens JH. Sonographic guidance for electron boost planning after breast-conserving surgery. J Clin Ultrasound. 2004 Sep;32(7):333-7. doi: 10.1002/jcu.20050.

    PubMed 15293299
  • Gilligan D, Hendry JA, Yarnold JR. The use of ultrasound to measure breast thickness to select electron energies for breast boost radiotherapy. Radiother Oncol. 1994 Sep;32(3):265-7. doi: 10.1016/0167-8140(94)90026-4.

    PubMed 7816945
  • Leonard C, Harlow CL, Coffin C, Drose J, Norton L, Kinzie J. Use of ultrasound to guide radiation boost planning following lumpectomy for carcinoma of the breast. Int J Radiat Oncol Biol Phys. 1993 Dec 1;27(5):1193-7. doi: 10.1016/0360-3016(93)90543-5.

    PubMed 8262847

Questions about this trial

What is this clinical trial studying?

An observational study of Breast Neoplasms, run by University of Iowa 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 7 inclusion and 5 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 16 Jan 2014. 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?

Determine the volume change in lumpectomy cavity during the course of external beam radiation prior to delivery of the radiation boost. (time frame: 7 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00583843, which also lists 4 linked publications.

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 16 Jan 2014.

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