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Breast CancerNCT00003404

Radiation Therapy After Surgery in Treating Women With Phyllodes Tumor of the Breast

A study testing Adjuvant Radiotherapy in people with Breast Cancer, run by Dartmouth-Hitchcock Medical Center 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

PURPOSE: This phase II trial studied how well radiation therapy works after surgery in treating women with phyllodes tumor of the breast. RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Read more about this study

Who is it for?
Ages 18 to 120 years, women only
Conditions the study is for
Breast Cancer
What is being tested?
Adjuvant Radiotherapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
46 participants
Where
1 siteUnited States
Study dates
Jan 1998to 17 Nov 2008
Phase
Interventional
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 18 to 120 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

DISEASE CHARACTERISTICS:

  1. Histologically proven phyllodes tumors of the breast with borderline or malignant grade, defined as 1 of the following:
  2. Borderline, defined as 5-9 mitoses/10 high power fields (HPF), pushing or infiltrating margins, 2+ atypia
  3. Malignant, defined as 10 or more mitoses/10 HPF, predominantly infiltrating margins, usually 3+ atypia with occasional 2+ atypia
  4. Must have been excised with breast-conserving resection and no positive margins
  5. Local recurrence of a previously excised phyllodes tumor allowed if the recurrence is in the area of the prior excision
  6. No prior breast carcinoma or ductal carcinoma in situ in the ipsilateral breast
  7. Hormone receptor status: Not specified

PATIENT CHARACTERISTICS:

  1. Age: 18 and over
  2. Sex: Female
  3. Menopausal status: Not specified
  4. Performance status: Not specified
  5. Life expectancy: Not specified
  6. Hematopoietic: Not specified
  7. Hepatic: Not specified
  8. Renal: Not specified
  9. Other:
  10. Not pregnant
  11. Negative pregnancy test
  12. Fertile patients must use effective contraception

PRIOR CONCURRENT THERAPY:

  1. Biologic therapy: Not specified
  2. Chemotherapy: Not specified
  3. Endocrine therapy: Not specified
  4. Radiotherapy: No prior radiotherapy to the ipsilateral breast
  5. Surgery: See Disease Characteristics

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical Center

    Lebanon, New Hampshire, 03756-0002

Other trials in United States

About this study

Official title: A Prospective Study of Adjuvant Radiation Therapy After Resection of Borderline and Malignant Phyllodes Tumors

PURPOSE: This phase II trial studied how well radiation therapy works after surgery in treating women with phyllodes tumor of the breast.

RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Radiation therapy following surgery may be effective in treating patients with phyllodes tumor of the breast.

Read the detailed description

OBJECTIVES:

  • Determine the local recurrence rate in women with phyllodes tumors of the breast previously treated with local excision with negative margins and are now treated with adjuvant radiotherapy.
  • Determine the survival rate in patients treated with this regimen.

METHODS: Within 12 weeks after prior local excision or breast reexcision, patients underwent adjuvant radiotherapy 5 days a week for a total of 28 treatments. Patients were then followed every 6 months for 10 years.

Conditions
Breast Cancer
Being tested
Adjuvant Radiotherapy
Keywords
recurrent breast cancer, phyllodes tumor
Medical subject headings
Breast Neoplasms, Phyllodes Tumor

What participants receive

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

  • Adjuvant RadiotherapyRadiation

    Adjuvant radiation therapy

Study groups in NCT00003404
Study groupRoleWhat they receive
Adjuvant RadiotherapyExperimentalAdjuvant radiation was started within 12 weeks of local excision or breast re-excision.
Receives: Radiation: Adjuvant Radiotherapy

What is being measured

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

  1. Local Recurrence Rate

    Local recurrence rate of phyllodes tumors

    Measured: 36 months after initial excision

Secondary outcomes (1)
  1. Survival Rate

    Survival will be tracked for 10 years after initial resection of first participant treated.

    Measured: Approximately 5 years

Timeline

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

  1. First posted27 Jan 2003 (estimated)
  2. Study startJan 1998
  3. Primary completion17 Nov 2008
  4. Study completion17 Nov 2008

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
46 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00003404
Sponsor's protocol ID
D9801 CDR0000066410
Other IDs
P30CA023108, DMS-9801, DMS-12752, NCI-V98-1442
Status last verified
Dec 2018
First submitted
1 Nov 1999
Last updated
22 Jan 2019
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes

Publications

  • Barth RJ Jr, Wells WA, Mitchell SE, Cole BF. A prospective, multi-institutional study of adjuvant radiotherapy after resection of malignant phyllodes tumors. Ann Surg Oncol. 2009 Aug;16(8):2288-94. doi: 10.1245/s10434-009-0489-2. Epub 2009 May 8.

    PubMed 19424757

Questions about this trial

What is this clinical trial studying?

A study testing Adjuvant Radiotherapy in people with Breast Cancer, run by Dartmouth-Hitchcock Medical Center 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?

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 22 Jan 2019. 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?

Yes. Results are posted in the registry (first posted 22 Jan 2019). 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?

Local Recurrence Rate (time frame: 36 months after initial excision). 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 NCT00003404, which also lists 1 linked publication.

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 22 Jan 2019.

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