BR01: Proton Therapy for Lymph Nodes in Breast Cancer

Sponsor
University of Florida (Other)
Overall Status
Completed
CT.gov ID
NCT01365845
Collaborator
(none)
18
1
2
73.7
0.2

Study Details

Study Description

Brief Summary

The purpose of this study is to determine if proton radiation therapy will reduce the amount of heart that is exposed to radiation, thereby decreasing the frequency and/or severity of any cardiac side effects.

Condition or Disease Intervention/Treatment Phase
  • Radiation: Photon
  • Radiation: 3D-Proton/Conventional plan or 3D-proton only
N/A

Study Design

Study Type:
Interventional
Actual Enrollment :
18 participants
Allocation:
Non-Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Proton Therapy for Peripheral Lymph Nodes in Breast Cancer
Actual Study Start Date :
Apr 1, 2012
Actual Primary Completion Date :
Mar 1, 2014
Actual Study Completion Date :
May 23, 2018

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: 1

Conventional photon plan

Radiation: Photon
50.4 Gy to the breast/chest wall and peripheral lymph nodes at 1.8 Gy per fraction

Experimental: 2

3D-Proton/Conventional plan or 3D-proton only

Radiation: 3D-Proton/Conventional plan or 3D-proton only
50.4 Cobalt Gray Equivalent/Gray to the breast/chest wall and peripheral lymph nodes at 1.8 Cobalt Gray Equivalent/Gray per fraction

Outcome Measures

Primary Outcome Measures

  1. Volume of Heart Receiving ≥ 5 Gray (Gy)/Cobalt Gray Equivalent (CGE) [2 weeks prior to starting radiation therapy.]

    A reduction of 50% in heart volume exposed to radiation doses ≥ 5 Gy/CGE was considered preferred outcome in this study plan.

Secondary Outcome Measures

  1. Secondary Dosimetric Endpoint [2 weeks prior to starting radiation therapy.]

    Assess improvements in other dosimetry endpoints including lung dose (mean lung dose, V20, V5), heart dose (mean heart, V20, V5), mean dose to the thyroid, mean esophageal dose, D95 coverage for axillary, supraclavicular and internal mammary nodes, maximal spinal cord dose (Dmax) and skin Dmax.

  2. Assessment of Acute Side Effects [Participants will be assessed weekly during radiation therapy for an expected average of 7 weeks.]

    Assess acute toxicities including pericarditis, pneumonitis, dermatitis, fatigue, and nausea.

  3. Assessment of Longterm Side Effects and Disease Specific End Points. [1 month following completion of treatment, then every 6 months for 5 years, then annually thereafter.]

    Assess late toxicities including clinical and sub-clinical heart disease, pulmonary fibrosis, soft tissue fibrosis, rib fracture, and secondary malignancies. Analyze local control, progression-free survival, and overall survival.

  4. Assessment of Cardiac Function Markers [after treatment]

    Assess levels of cardiac function markers Troponin and Brain Naturietic Peptide before and after treatment.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 100 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • Pathologically confirmed invasive adenocarcinoma of the breast stage I-III (TX, T0-4, N0-3) with medially located tumor and/or axillary node invasion.

  • Patients must have undergone either mastectomy or breast conservation surgery.

  • Patients are required to have axillary staging which can include sentinel node biopsy alone if sentinel node is negative.

  • Patient must require peripheral lymph node radiation per physician discretion.

Exclusion Criteria:
  • Evidence of distant metastasis (M1).

  • Prior radiotherapy to the area of interest.

  • Prior history of cardiovascular disease per physician discretion.

  • Prior or concurrent cancer other than non-melanomatous skin cancer unless disease free for at least 5 years.

  • Collagen vascular disease, specifically dermatomyositis with a CPK level above normal or with an active skin rash, systemic lupus erythematosis or scleroderma.

Contacts and Locations

Locations

Site City State Country Postal Code
1 University of Florida Proton Therapy Institute Jacksonville Florida United States 32206

Sponsors and Collaborators

  • University of Florida

Investigators

  • Principal Investigator: Julie A Bradley, MD, University of Florida Proton Therapy Institute

Study Documents (Full-Text)

None provided.

More Information

Additional Information:

Publications

Responsible Party:
University of Florida
ClinicalTrials.gov Identifier:
NCT01365845
Other Study ID Numbers:
  • IRB201701740
  • UFPTI 1016-BR01
First Posted:
Jun 3, 2011
Last Update Posted:
Jun 29, 2018
Last Verified:
May 1, 2018
Individual Participant Data (IPD) Sharing Statement:
Undecided
Plan to Share IPD:
Undecided
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by University of Florida
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail
Arm/Group Title Induction Phase Conventional Photon Plan 3D-Proton/Conventional Plan or 3D-proton Only
Arm/Group Description During this phase, each patient will have both a proton and conventional radiation plan performed. The superior plan in regard to minimizing dose to heart will be the plan actually chosen for treating the patient. Conventional (photon): 50.4 Gray (Gy) to the breast/chest wall and peripheral lymph nodes at 1.8 Gy per fraction This number will automatically be equal to 0 during the 'induction phase' period and will only have a count in the 'treatment phase' period if a patient was actually assigned to this treatment. 3D-Proton/Conventional plan or 3D-proton only: 50.4 Cobalt Gray Equivalent (CGE)/Gray (Gy) to the breast/chest wall and peripheral lymph nodes at 1.8 CGE/Gy This number will automatically be equal to 0 during the 'induction phase' period and will only have a count in the 'treatment phase' period if a patient was actually assigned to this treatment.
Period Title: Induction Phase
STARTED 18 0 0
COMPLETED 18 0 0
NOT COMPLETED 0 0 0
Period Title: Induction Phase
STARTED 0 0 18
COMPLETED 0 0 18
NOT COMPLETED 0 0 0

Baseline Characteristics

Arm/Group Title Breast Patients Planned With Both Proton & Conventional Plans
Arm/Group Description Each patient is planned with both proton and conventional plans and the superior plan is chosen for treatment. Conventional plan: 50.4 Gy to the breast/chest wall and peripheral lymph nodes at 1.8 Gy per fraction Proton plan: 50.4 Cobalt Gray Equivalent/Gray to the breast/chest wall and peripheral lymph nodes at 1.8 Cobalt Gray Equivalent/Gray per fraction
Overall Participants 18
Age (Years) [Median (Full Range) ]
Median (Full Range) [Years]
52
Age (Count of Participants)
<=18 years
0
0%
Between 18 and 65 years
15
83.3%
>=65 years
3
16.7%
Sex: Female, Male (Count of Participants)
Female
18
100%
Male
0
0%
Region of Enrollment (participants) [Number]
United States
18
100%

Outcome Measures

1. Primary Outcome
Title Volume of Heart Receiving ≥ 5 Gray (Gy)/Cobalt Gray Equivalent (CGE)
Description A reduction of 50% in heart volume exposed to radiation doses ≥ 5 Gy/CGE was considered preferred outcome in this study plan.
Time Frame 2 weeks prior to starting radiation therapy.

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Conventional Photon Plan 3D-Proton/Conventional Plan or 3D-proton Only
Arm/Group Description Photon: 50.4 Gray (Gy) to the breast/chest wall and peripheral lymph nodes at 1.8 Gy per fraction 3D-Proton/Conventional plan or 3D-proton only: 50.4 Cobalt Gray Equivalent (CGE)/Gray (Gy) to the breast/chest wall and peripheral lymph nodes at 1.8 CGE/Gy per fraction
Measure Participants 18 18
Median (Full Range) [% of heart receiving >= 5 Gray (Gy)]
34.7
2.7
Statistical Analysis 1
Statistical Analysis Overview Comparison Group Selection Conventional Photon Plan, 3D-Proton/Conventional Plan or 3D-proton Only
Comments
Type of Statistical Test Superiority or Other
Comments
Statistical Test of Hypothesis p-Value 0.0078
Comments
Method Wilcoxon (Mann-Whitney)
Comments
Method of Estimation Estimation Parameter Non-parametric paired t-test (Wilcoxon)
Estimated Value 29.1
Confidence Interval () %
to
Parameter Dispersion Type:
Value:
Estimation Comments
2. Secondary Outcome
Title Secondary Dosimetric Endpoint
Description Assess improvements in other dosimetry endpoints including lung dose (mean lung dose, V20, V5), heart dose (mean heart, V20, V5), mean dose to the thyroid, mean esophageal dose, D95 coverage for axillary, supraclavicular and internal mammary nodes, maximal spinal cord dose (Dmax) and skin Dmax.
Time Frame 2 weeks prior to starting radiation therapy.

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title
Arm/Group Description
3. Secondary Outcome
Title Assessment of Acute Side Effects
Description Assess acute toxicities including pericarditis, pneumonitis, dermatitis, fatigue, and nausea.
Time Frame Participants will be assessed weekly during radiation therapy for an expected average of 7 weeks.

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title
Arm/Group Description
4. Secondary Outcome
Title Assessment of Longterm Side Effects and Disease Specific End Points.
Description Assess late toxicities including clinical and sub-clinical heart disease, pulmonary fibrosis, soft tissue fibrosis, rib fracture, and secondary malignancies. Analyze local control, progression-free survival, and overall survival.
Time Frame 1 month following completion of treatment, then every 6 months for 5 years, then annually thereafter.

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title
Arm/Group Description
5. Secondary Outcome
Title Assessment of Cardiac Function Markers
Description Assess levels of cardiac function markers Troponin and Brain Naturietic Peptide before and after treatment.
Time Frame after treatment

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title
Arm/Group Description

Adverse Events

Time Frame From start of radiation therapy to date of last follow-up.
Adverse Event Reporting Description
Arm/Group Title Breast Patients Planned With Both Proton & Conventional Plans
Arm/Group Description All patients ultimately treated under the proton plan, so the denominator for all adverse events refers exclusively to the proton arm and not conventional. Each patient was planned with both proton and conventional plans and the superior plan was chosen for treatment. Conventional plan: 50.4 Gy to the breast/chest wall and peripheral lymph nodes at 1.8 Gy per fraction Proton plan: 50.4 Cobalt Gray Equivalent/Gray to the breast/chest wall and peripheral lymph nodes at 1.8 Cobalt Gray Equivalent/Gray per fraction
All Cause Mortality
Breast Patients Planned With Both Proton & Conventional Plans
Affected / at Risk (%) # Events
Total / (NaN)
Serious Adverse Events
Breast Patients Planned With Both Proton & Conventional Plans
Affected / at Risk (%) # Events
Total 6/18 (33.3%)
Infections and infestations
Skin infection 2/18 (11.1%) 2
Injury, poisoning and procedural complications
Radiation dermatitis 4/18 (22.2%) 4
Other (Not Including Serious) Adverse Events
Breast Patients Planned With Both Proton & Conventional Plans
Affected / at Risk (%) # Events
Total 11/18 (61.1%)
Gastrointestinal disorders
Esophagitis 5/18 (27.8%) 5
General disorders
Fatigue 7/18 (38.9%) 7
Nausea 1/18 (5.6%) 1
Infections and infestations
Wound infection 2/18 (11.1%) 2
Infection 1/18 (5.6%) 1
Reproductive system and breast disorders
Breast atrophy 1/18 (5.6%) 1
Breast pain 5/18 (27.8%) 5
Lymphedema 1/18 (5.6%) 1
Respiratory, thoracic and mediastinal disorders
Dyspnea 1/18 (5.6%) 1
Pneumonitis 1/18 (5.6%) 1
Skin and subcutaneous tissue disorders
Hyperpigmentation 1/18 (5.6%) 1
Skin ulceration 1/18 (5.6%) 1

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

All Principal Investigators ARE employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Dr. Julie Bradley
Organization University of Florida Proton Therapy Institute
Phone 904-588-1800
Email jbradley@floridaproton.org
Responsible Party:
University of Florida
ClinicalTrials.gov Identifier:
NCT01365845
Other Study ID Numbers:
  • IRB201701740
  • UFPTI 1016-BR01
First Posted:
Jun 3, 2011
Last Update Posted:
Jun 29, 2018
Last Verified:
May 1, 2018