Manuka Honey in Preventing Esophagitis-Related Pain in Patients Receiving Chemotherapy and Radiation Therapy For Lung Cancer

NCT01262560 — Phase 2, Completed, 163 participants, Radiation Therapy Oncology Group

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Phase II Randomized Trial of Prophylactic Manuka Honey for the Reduction of Chemoradiation Therapy Induced Esophagitis-Related Pain During the Treatment of Lung Cancer

RegistryNCT01262560
StatusCompleted
PhasePhase 2
Study typeInterventional; randomized, parallel, masking: none, supportive care
Enrollment163 (Actual)
SponsorRadiation Therapy Oncology Group (Network); collaborators: National Cancer Institute (NCI), NRG Oncology
ConditionsDysphagia, Lung Cancer, Pain, Esophagitis
InterventionsManuka honey in liquid form, Manuka honey in lozenge form, Standard supportive care (Drug)
Datesstart 2012-02-01, primary completion 2014-02-01, completion 2014-11-01, first posted 2010-12-17, last updated 2017-08-31
Locations59 sites in United States

Related Papers Related Patents Related Grants Related Experts
All trials for Dysphagia All trials for Lung Cancer All trials of Manuka honey in liquid form All trials of Manuka honey in lozenge form

-Summary

RATIONALE: Manuka honey may prevent or reduce esophagitis-related pain caused by chemotherapy and radiation therapy. It is not yet known whether Manuka honey is more effective than standard care in preventing pain.

PURPOSE: This randomized phase II clinical trial is studying Manuka honey to see how well it works in preventing esophagitis-related pain in patients receiving chemotherapy and radiation therapy for lung cancer.

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+Detailed description

OBJECTIVES:

Primary

* Evaluate the relative efficacy of 4 times a day consumption of liquid or lozenge Manuka honey to delay or prevent radiation esophagitis-related pain (during combined chemotherapy and radiation therapy for lung cancer) as compared to standard supportive treatment, as measured at week 4 by Numerical Rating Pain Scale (NRPS) for pain upon swallowing.

Secondary

* Evaluate the trend of severity of radiation esophagitis-related pain during combined chemotherapy and radiation therapy for lung cancer using weekly measurements of the NRPS.
* Evaluate the adverse events associated with Manuka honey, as measured by CTCAE, v. 4.
* Evaluate the severity of radiation esophagitis (grade 3-4, CTCAE, v. 4).
* Assess weight loss (percent weight change from baseline to 4 weeks).
* Assess quality of life (QOL) and pain, as measured by the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ-30) global QOL score and pain symptom subscale.
* Assess patient-reported dysphagia via a daily patient log.
* Assess nutritional status, as measured by the mean change in serum prealbumin levels from baseline to 4 weeks.
* Assess opioid use by collecting the patient's narcotic use in the previous 24-hour period at each weekly evaluation.
* Evaluate patient-reported adverse events associated with Manuka honey using the Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE).

OUTLINE: This is a multicenter study. Patients are stratified according to the percentage of esophagus in the radiation field (V60 < 30% vs V60 ≥ 30%). Patients are randomized to 1 of 3 treatment arms.

* Arm I: Patients receive standard supportive care for esophagitis-related pain as needed during chemoradiotherapy.
* Arm II: Patients swallow liquid Manuka honey slowly over 3-5 minutes. Patients must refrain from eating and drinking for 1 hour after administration. Treatment continues 4 times per day during chemoradiotherapy.
* Arm III: Patients place Manuka honey lozenges in their mouth one at a time and swallow the honey as it dissolves (no chewing or swallowing it whole). Patients must refrain from eating and drinking for 1 hour after administration. Treatment continues 4 times per day during chemoradiotherapy.

Patients complete quality of life, pain swallowing diary, and pain assessments (Numerical Rating Pain Scale, EORTC QLQ-30 and Pain Subscale, and PRO-CTCAE) periodically during study treatment.

Patients are followed up at 12 weeks from the start of study treatment.

+Arms and interventions

ArmTypeInterventionsDescription
Supportive CareActive comparatorDrug: Standard supportive careStandard supportive care
Liquid Manuka HoneyExperimentalDrug: Manuka honey in liquid formManuka honey in liquid form
Lozenge Manuka HoneyExperimentalDrug: Manuka honey in lozenge formManuka honey in lozenge form
  • Manuka honey in liquid form (Drug): Patients swallow 10 cc (approximately 2 level teaspoons) of liquid Manuka honey 4 times per day while awake over an approximately 12 hour period (e.g. 8 a.m., Noon, 4 p.m., and 8 p.m.) 7 days/week during concurrent chemotherapy and radiation treatment.
  • Manuka honey in lozenge form (Drug): Patients place 2 lozenges (the equivalent of 10 cc of liquid Manuka honey), one at a time, in the mouth, allowing each lozenge to dissolve on the tongue/in the mouth, swallowing the honey as it dissolves. Patients do this 4 times per day while awake over an approximately 12 hour period (e.g. 8 a.m., Noon, 4 p.m., and 8 p.m.) 7 days/week during concurrent chemotherapy and radiation treatment.
  • Standard supportive care (Drug): Patients receive standard supporting care for esophagitis-related pain as needed during concurrent chemotherapy and radiation treatment. The following regimen is recommended, but the local standard of care is permitted. 1. A compound containing viscous lidocaine and magnesium aluminum oxide (Maalox®); 2. Liquid or solid oxycodone, 5-10 mg, every 3 hours as needed.

+Outcome measures

Primary outcomes

  • Change in Radiation Esophagitis-related Pain at 4 Weeks as Measured by the Numerical Rating Pain Scale for Pain on Swallowing (NRPS) [Baseline and 4 weeks from the start of treatment]: Esophagitis-related pain was measured using patient-reported pain on swallowing as assessed by the Numerical Rating Pain Scale (NRPS), an 11-point scale (0-10) in which 0 indicates no pain and 10 indicates the worst pain imaginable. Generally, scores of 1-4 indicate mild pain, scores of 5-6 indicate moderate pain, and scores of 7-10 indicate severe pain. Change was calculated by subtracting the baseline value from the 4-week value. The experimental arms (honey) were compared to the standard arm (supportive care).

Secondary outcomes

  • Radiation Esophagitis-related Pain During Treatment as Measured During Treatment and 12 Weeks by the Numerical Rating Pain Scale (NRPS) [Baseline, weekly during treatment, and 12 weeks from the start of treatment]: Esophagitis-related pain was measured using patient-reported pain on swallowing as assessed by the Numerical Rating Pain Scale (NRPS), an 11-point scale (0-10) in which 0 indicates no pain and 10 indicates the worst pain imaginable. Generally, scores of 1-4 indicate mild pain, scores of 5-6 indicate moderate pain, and scores of 7-10 indicate severe pain. Change was calculated by subtracting the baseline value from values at the later time points. The experimental arms (honey) were compared to the standard arm (supportive care).
  • Dysphagia Via Daily Patient Log [Weekly during treatment and 12 weeks from the start of treatment]: Dysphagia, as reported by the patient, was measured by the patient swallowing diary. Swallowing score has increasing severity 1-5, where 1 = "none" and 5 = "cannot swallow liquids".
  • Quality of Life and Pain, as Measured by the EORTC QLQ-30 Global QOL Score and Pain Symptom Subscale at 4 and 12 Weeks [Baseline, 4 and 12 weeks from the start of treatment]: The pain symptom subscale (2 items) evaluated pain and the global score (30 items) evaluated quality of life. Each ranges from 0-100 with lower scores indicating lesser burden and improved symptoms or quality of life.
  • Percentage of Participants With Radiation Esophagitis Grade 3-4 (CTCAE v. 4) [Up to 12 weeks from the start of treatment]: Adverse events are graded using CTCAE v3.0. Grade refers to the severity of the AE. The CTCAE v3.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild AE, Grade 2 Moderate AE, Grade 3 Severe AE, Grade 4 Life-threatening or disabling AE, Grade 5 Death related to AE. For esophagitis specifically, Grade 3 criteria includes severely altered eating/swallowing, tube feeding, total parenteral nutrition (TPN) or hospitalization indicated. Grade 4 criteria include life-threatening consequences, urgent operative intervention indicated.
  • Percent Change in Weight From Baseline to 4 Weeks [Baseline and 4 weeks from the start of treatment]
  • Nutritional Status (Change in Serum Prealbumin Levels From Baseline to 4 Weeks) [Baseline and 4 weeks from the start of treatment]
  • Percentage of Patients Using Opioids [Baseline, 4 weeks, end of radiation treatment, and 12 weeks from the start of treatment]: The percentage of patients using opioid analgesics is reported. Use of opioid analgesics was assessed for a 24-hour period before completing the assessment. Patients with at least one reported administration of opioid analgesic were considered to have received opioid analgesics.
  • Adverse Events Associated With Manuka Honey Using CTCAE v4.0 [Until 12 weeks from the start of treatment]: Adverse events are graded using CTCAE v4.0. Grade refers to the severity of the AE. The CTCAE v4.0 assigns Grades 1 through 5 with unique clinical descriptions of severity for each AE based on this general guideline: Grade 1 Mild AE, Grade 2 Moderate AE, Grade 3 Severe AE, Grade 4 Life-threatening or disabling AE, Grade 5 Death related to AE.
  • Patient Reported Difficulty in Swallowing Associated With Manuka Honey Using the Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) [Baseline and 4 weeks from the start of treatment]: Change from baseline to four weeks in patient-reported difficulty in swallowing via the PRO-CTCAE. PRO-CTCAE is an item bank consisting of individual items to assess adverse symptom events from the patient perspective. There are 78 symptoms included in the survey but the primary item of interest assesses difficulty swallowing. For each AE in the PRO-CTCAE, between 1 and 3 items are included to assess the frequency, severity, and/or interference with activities related to that AE. Frequency questions have responses ranging from never, which is scored as a 0, to almost constantly, which is scored as a 4. Severity questions have responses ranging from none, which is scored as a 0, to very severe, which is scored as a 4. Interference questions have responses ranging from not at all, which is scored as a 0, to very much, which is scored as a 4. Difficulty in swallowing only has a severity question.

+Eligibility

Sex: All, ages: 18 Years to any

DISEASE CHARACTERISTICS:

* Patients being treated with combination chemotherapy (definitive or adjuvant) and radiation therapy once daily for small cell or non-small cell lung cancer (primary population for the trial)

  * Patients can receive chemoradiotherapy while on a Radiation Therapy Oncology Group (RTOG) lung trial or while not being on a clinical trial
  * No patients receiving chemoradiotherapy while enrolled on a single institution trial or trials coordinated by other cooperative groups
* No patients with metastatic disease
* At least 5 cm of the esophagus must be in the 60 Gy isodose volume in 1.6 to 2.0 Gy fractions

PATIENT CHARACTERISTICS:

* Age 18 and up
* Able to swallow thick liquids prior to treatment
* Able to speak English or Spanish in order to complete required forms (verbal completion is adequate)
* No patients with poorly controlled diabetes
* No known hypersensitivity to honey

PRIOR CONCURRENT THERAPY:

* See Disease Characteristics
* No patients who have received prior chemotherapy or radiation therapy
* No patients receiving more than once daily treatments
* Therapeutic use of honey other than the Manuka honey provided for this trial is not allowed while patients are on study
* Patients must also avoid honey-flavored medical products and/or sugary, viscous substances
* Amifostine is not permitted

+Posted results

Participant flow

MilestoneSupportive CareLiquid Manuka HoneyLozenge Manuka Honey
Started535456
Completed535354
Not completed012

Outcome results

  • Change in Radiation Esophagitis-related Pain at 4 Weeks as Measured by the Numerical Rating Pain Scale for Pain on Swallowing (NRPS) (Primary), Median, units on a scale: Supportive Care 1 (0 to 4); Liquid Manuka Honey 1 (0 to 4); Lozenge Manuka Honey 1 (0 to 4) (p 0.92)
  • Radiation Esophagitis-related Pain During Treatment as Measured During Treatment and 12 Weeks by the Numerical Rating Pain Scale (NRPS) (Secondary), Median, units on a scale: Supportive Care 0 (0 to 0); Liquid Manuka Honey 0 (0 to 0); Lozenge Manuka Honey 0 (0 to 0) (p 0.87)
  • Dysphagia Via Daily Patient Log (Secondary), Median, units on a scale: Supportive Care 1 (1 to 1); Liquid Manuka Honey 1 (1 to 1); Lozenge Manuka Honey 1 (1 to 1) (p 0.70)
  • Quality of Life and Pain, as Measured by the EORTC QLQ-30 Global QOL Score and Pain Symptom Subscale at 4 and 12 Weeks (Secondary), Median, units on a scale: Supportive Care 66.67 (54.17 to 83.33); Liquid Manuka Honey 66.67 (50.00 to 83.33); Lozenge Manuka Honey 66.67 (50.00 to 83.33) (p 0.086)
  • Percentage of Participants With Radiation Esophagitis Grade 3-4 (CTCAE v. 4) (Secondary), Number, percentage of participants: Supportive Care 12.5 (3.1 to 21.9); Liquid Manuka Honey 2.0 (0.0 to 5.9); Lozenge Manuka Honey 6.0 (0.0 to 12.6) (p 0.06)
  • Percent Change in Weight From Baseline to 4 Weeks (Secondary), Mean, percentage of baseline value: Supportive Care -2.22 (-7.26 to 14.79); Liquid Manuka Honey -0.62 (-1.57 to 2.83); Lozenge Manuka Honey -2.64 (-4.53 to 5.64) (p 0.53)
  • Nutritional Status (Change in Serum Prealbumin Levels From Baseline to 4 Weeks) (Secondary), Mean, mg/dl: Supportive Care -3.34 (-9.46 to 17.98); Liquid Manuka Honey 5.25 (-6.42 to 34.70); Lozenge Manuka Honey 0.17 (-1.94 to 6.28) (p 0.20)
  • Percentage of Patients Using Opioids (Secondary), Number, percentage of participants: Supportive Care 13.2; Liquid Manuka Honey 9.4; Lozenge Manuka Honey 13.0
  • Adverse Events Associated With Manuka Honey Using CTCAE v4.0 (Secondary), Number, percentage of patients: Supportive Care 6.3; Liquid Manuka Honey 16.0; Lozenge Manuka Honey 12.0
  • Patient Reported Difficulty in Swallowing Associated With Manuka Honey Using the Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) (Secondary), Median, units on a scale: Supportive Care 1 (0 to 2); Liquid Manuka Honey 1 (0 to 2); Lozenge Manuka Honey 1 (0 to 2) (p 0.39)

Adverse events

ArmDeathsSerious adverse eventsOther adverse events
Supportive Care016/48 (33.3%)37/48 (77.1%)
Liquid Manuka Honey013/50 (26.0%)46/50 (92.0%)
Lozenge Manuka Honey09/50 (18.0%)38/50 (76.0%)

Serious adverse events by term

TermOrgan systemSupportive CareLiquid Manuka HoneyLozenge Manuka Honey
AnemiaBlood and lymphatic system disorders0/482/500/50
Febrile neutropeniaBlood and lymphatic system disorders1/481/503/50
Atrial fibrillationCardiac disorders1/480/501/50
Cardiac arrestCardiac disorders1/480/500/50
Myocardial infarctionCardiac disorders1/480/500/50
Abdominal painGastrointestinal disorders0/480/501/50
Colonic perforationGastrointestinal disorders0/480/501/50
DiarrheaGastrointestinal disorders0/481/500/50
DysphagiaGastrointestinal disorders0/481/500/50
EsophagitisGastrointestinal disorders5/481/502/50
Gastrointestinal disorders - OtherGastrointestinal disorders0/480/501/50
NauseaGastrointestinal disorders1/480/500/50
Small intestinal obstructionGastrointestinal disorders1/480/500/50
VomitingGastrointestinal disorders1/480/500/50
FatigueGeneral disorders0/481/500/50
Infusion related reactionGeneral disorders1/480/500/50
Lung infectionInfections and infestations2/480/502/50
SepsisInfections and infestations1/480/501/50
Skin infectionInfections and infestations0/481/500/50
Urinary tract infectionInfections and infestations1/482/500/50
Aspartate aminotransferase increasedInvestigations0/480/501/50
Neutrophil count decreasedInvestigations1/482/502/50
Platelet count decreasedInvestigations1/482/501/50
Weight lossInvestigations0/481/500/50
White blood cell decreasedInvestigations1/482/502/50
AnorexiaMetabolism and nutrition disorders1/480/500/50
DehydrationMetabolism and nutrition disorders3/482/501/50
HyperglycemiaMetabolism and nutrition disorders0/481/501/50
HypokalemiaMetabolism and nutrition disorders1/481/500/50
Muscle weakness lower limbMusculoskeletal and connective tissue disorders0/481/500/50
Nervous system disorders - OtherNervous system disorders0/481/500/50
AnxietyPsychiatric disorders0/481/500/50
Acute kidney injuryRenal and urinary disorders1/480/501/50
AtelectasisRespiratory, thoracic and mediastinal disorders0/481/500/50
CoughRespiratory, thoracic and mediastinal disorders1/480/500/50
DyspneaRespiratory, thoracic and mediastinal disorders1/481/503/50
Laryngeal stenosisRespiratory, thoracic and mediastinal disorders0/481/500/50
HypotensionVascular disorders1/481/500/50
Thromboembolic eventVascular disorders2/480/500/50

Other adverse events by term

TermOrgan systemSupportive CareLiquid Manuka HoneyLozenge Manuka Honey
AnemiaBlood and lymphatic system disorders15/4820/5013/50
ConstipationGastrointestinal disorders13/4815/5010/50
DiarrheaGastrointestinal disorders9/4811/503/50
Dry mouthGastrointestinal disorders3/485/502/50
DyspepsiaGastrointestinal disorders10/486/502/50
DysphagiaGastrointestinal disorders17/4820/5017/50
Esophageal painGastrointestinal disorders2/488/503/50
EsophagitisGastrointestinal disorders19/4818/5013/50
Gastroesophageal reflux diseaseGastrointestinal disorders0/485/503/50
Gastrointestinal disorders - OtherGastrointestinal disorders0/483/501/50
Mucositis oralGastrointestinal disorders2/482/505/50
NauseaGastrointestinal disorders16/4823/5011/50
VomitingGastrointestinal disorders7/486/504/50
FatigueGeneral disorders28/4828/5022/50
Non-cardiac chest painGeneral disorders1/483/500/50
PainGeneral disorders3/486/504/50
Mucosal infectionInfections and infestations0/483/502/50
Dermatitis radiationInjury, poisoning and procedural complications12/487/5011/50
Radiation recall reaction (dermatologic)Injury, poisoning and procedural complications0/483/500/50
Alanine aminotransferase increasedInvestigations1/481/504/50
Alkaline phosphatase increasedInvestigations2/483/501/50
Creatinine increasedInvestigations2/485/503/50
Lymphocyte count decreasedInvestigations7/485/502/50
Neutrophil count decreasedInvestigations6/487/5010/50
Platelet count decreasedInvestigations4/489/5011/50
Weight lossInvestigations4/488/503/50
White blood cell decreasedInvestigations8/4813/508/50
AnorexiaMetabolism and nutrition disorders10/4817/505/50
DehydrationMetabolism and nutrition disorders6/488/505/50
HyperglycemiaMetabolism and nutrition disorders2/487/501/50
HypoalbuminemiaMetabolism and nutrition disorders5/485/505/50
HypocalcemiaMetabolism and nutrition disorders2/483/501/50
HypokalemiaMetabolism and nutrition disorders4/485/503/50
HypomagnesemiaMetabolism and nutrition disorders2/483/503/50
HyponatremiaMetabolism and nutrition disorders4/486/503/50
Back painMusculoskeletal and connective tissue disorders2/484/500/50
Chest wall painMusculoskeletal and connective tissue disorders2/484/501/50
DizzinessNervous system disorders3/485/502/50
DysgeusiaNervous system disorders6/488/504/50
HeadacheNervous system disorders5/484/503/50
Peripheral sensory neuropathyNervous system disorders6/483/502/50
AnxietyPsychiatric disorders4/483/502/50
DepressionPsychiatric disorders1/484/500/50
InsomniaPsychiatric disorders6/485/502/50
CoughRespiratory, thoracic and mediastinal disorders12/4822/5011/50
DyspneaRespiratory, thoracic and mediastinal disorders8/4817/5013/50
HiccupsRespiratory, thoracic and mediastinal disorders1/482/503/50
HoarsenessRespiratory, thoracic and mediastinal disorders3/482/501/50
Voice alterationRespiratory, thoracic and mediastinal disorders0/483/503/50
WheezingRespiratory, thoracic and mediastinal disorders0/483/501/50
AlopeciaSkin and subcutaneous tissue disorders3/481/501/50
Dry skinSkin and subcutaneous tissue disorders5/481/501/50
PruritusSkin and subcutaneous tissue disorders5/482/501/50
Rash acneiformSkin and subcutaneous tissue disorders1/483/500/50
Rash maculo-papularSkin and subcutaneous tissue disorders4/483/501/50
HypotensionVascular disorders1/483/501/50

+Locations (59)

FacilityCityCountryStatus
Providence Cancer Center at Providence HospitalMobile, AlabamaUnited States
UCSF Helen Diller Family Comprehensive Cancer CenterSan Francisco, CaliforniaUnited States
Stanford Cancer CenterStanford, CaliforniaUnited States
CCOP - Christiana Care Health ServicesNewark, DelawareUnited States
Baptist Cancer Institute - JacksonvilleJacksonville, FloridaUnited States
CCOP - Mount Sinai Medical CenterMiami Beach, FloridaUnited States
Florida Cancer Center - PalatkaPalatka, FloridaUnited States
Piedmont Fayette HospitalFayetteville, GeorgiaUnited States
Nancy N. and J. C. Lewis Cancer and Research Pavilion at St. Joseph's/CandlerSavannah, GeorgiaUnited States
Queen's Cancer Institute at Queen's Medical CenterHonolulu, HawaiiUnited States
Hawaii Medical Center - EastHonolulu, HawaiiUnited States
OSF St. Francis Medical CenterPeoria, IllinoisUnited States
CCOP - Carle Cancer CenterUrbana, IllinoisUnited States
Parkview Regional Cancer Center at Parkview HealthFort Wayne, IndianaUnited States
Cancer Center at Ball Memorial HospitalMuncie, IndianaUnited States
Lucille P. Markey Cancer Center at University of KentuckyLexington, KentuckyUnited States
Cape Cod HospitalHyannis, MassachusettsUnited States
CentraCare Clinic - River CampusSaint Cloud, MinnesotaUnited States
Regional Cancer Center at Singing River HospitalPascagoula, MississippiUnited States
Siteman Cancer Center at Barnes-Jewish Hospital - Saint LouisSt Louis, MissouriUnited States
David C. Pratt Cancer Center at St. John's MercySt Louis, MissouriUnited States
Payson Center for Cancer Care at Concord HospitalConcord, New HampshireUnited States
Seacoast Cancer Center at Wentworth - Douglass HospitalDover, New HampshireUnited States
Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical CenterLebanon, New HampshireUnited States
Elliot Regional Cancer Center at Elliot HospitalManchester, New HampshireUnited States
Monmouth Medical CenterLong Branch, New JerseyUnited States
Fox Chase Virtua Health Cancer Program at Virtua Memorial Hospital MarltonMarlton, New JerseyUnited States
CCOP - Hematology-Oncology Associates of Central New YorkEast Syracuse, New YorkUnited States
Highland Hospital of RochesterRochester, New YorkUnited States
James P. Wilmot Cancer Center at University of Rochester Medical CenterRochester, New YorkUnited States
Presbyterian Cancer Center at Presbyterian HospitalCharlotte, North CarolinaUnited States
Duke Cancer InstituteDurham, North CarolinaUnited States
Pardee Memorial HospitalHendersonville, North CarolinaUnited States
FirstHealth Moore Regional Community Hospital Comprehensive Cancer CenterPinehurst, North CarolinaUnited States
Rex Cancer Center at Rex HospitalRaleigh, North CarolinaUnited States
Wake Forest University Comprehensive Cancer CenterWinston-Salem, North CarolinaUnited States
Trinity CancerCare CenterMinot, North DakotaUnited States
Mercy Cancer Center at Mercy Medical CenterCanton, OhioUnited States
Case Comprehensive Cancer CenterCleveland, OhioUnited States
Cleveland Clinic Cancer Center at Fairview HospitalCleveland, OhioUnited States
Cleveland Clinic Taussig Cancer CenterCleveland, OhioUnited States
Cleveland Clinic Cancer CenterIndependence, OhioUnited States
Hillcrest Cancer Center at Hillcrest HospitalMayfield Heights, OhioUnited States
Parma Community General HospitalParma, OhioUnited States
Rosenfeld Cancer Center at Abington Memorial HospitalAbington, PennsylvaniaUnited States
Bryn Mawr HospitalBryn Mawr, PennsylvaniaUnited States
Geisinger Cancer Institute at Geisinger HealthDanville, PennsylvaniaUnited States
Northeast Radiation Oncology CenterDunmore, PennsylvaniaUnited States
Adams Cancer CenterGettysburg, PennsylvaniaUnited States
Cherry Tree Cancer CenterHanover, PennsylvaniaUnited States
Cancer Center of Paoli Memorial HospitalPaoli, PennsylvaniaUnited States
Lankenau Cancer Center at Lankenau HospitalWynnewood, PennsylvaniaUnited States
York Cancer Center at Apple Hill Medical CenterYork, PennsylvaniaUnited States
Gibbs Regional Cancer Center at Spartanburg Regional Medical CenterSpartanburg, South CarolinaUnited States
University of Texas Medical BranchGalveston, TexasUnited States
University of Texas Health Science Center at San AntonioSan Antonio, TexasUnited States
St. Joseph Cancer CenterBellingham, WashingtonUnited States
St. Mary's Hospital Medical Center - Green BayGreen Bay, WisconsinUnited States
St. Vincent Hospital Regional Cancer CenterGreen Bay, WisconsinUnited States

+Investigators