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Exercise to Prevent Aromatase Inhibitor Side Effects in Breast Cancer Patients (BCS2)

25 november 2015 uppdaterad av: Susan B. Kesmodel, MD, Baltimore VA Medical Center

Pilot Trial of Aerobic and Resistance Exercise Training for the Primary Prevention of Musculoskeletal Side Effects From Aromatase Inhibitors in Postmenopausal Breast Cancer Patients

Hormone receptor-positive tumors are the most common breast cancers in postmenopausal women, and drug therapies, which block the production or effects of estrogen, are the mainstay of treatment in these patients. Due to their effectiveness in postmenopausal women, aromatase inhibitors (AIs) are the standard of care for long-term estrogen suppression in these patients. Estrogen deficiency, however, results in multiple side effects. Some of the most common side effects in women taking AIs are joint and muscle aches, which promote physical deconditioning. Because of the long term use of AIs in postmenopausal breast cancer patients and the improvements in cancer-related outcomes that are observed with their use, identifying methods to reduce these side effects to maintain adherence to treatment is important. Exercise interventions in breast cancer patients also improve quality of life and reduce fatigue. Understanding the role of exercise in AI side effect prevention will allow us to translate these findings into therapy guidelines.

Studieöversikt

Status

Avslutad

Betingelser

Detaljerad beskrivning

Breast cancer is the most common malignancy in women in the United States and is the second leading cause of cancer deaths. In 2013, an estimated 230,000 women in the United States will be diagnosed with invasive breast cancer and approximately 40,000 with die.1 Women with breast cancer frequently experience significant functional and metabolic declines during and after treatment due to cancer-related fatigue (CRF), stress and depression.2,3 Cancer-related fatigue is associated with side effects from treatment, pain, functional disability, sleep disturbances, mood disturbances and co-morbid conditions.4 Patients with CRF have declines in physical activity and function, which significantly impacts quality of life (QOL).5 The mechanisms underlying functional declines and fatigue in breast cancer patients are likely multifactorial, but deconditioning, sarcopenia, increases in inflammatory cytokines, insulin resistance, and changes in muscle and fat metabolism seem to play important roles.4,6

Hormone receptor-positive tumors are the most common breast cancers in postmenopausal women, and endocrine therapies, which block the production or effects of estrogen, are the mainstay of treatment in these patients. Due to their superior efficacy in postmenopausal women, aromatase inhibitors (AIs) are the standard of care for long-term estrogen suppression in these patients.7 Estrogen deprivation, however, results in multiple side effects which may worsen fatigue and the functional and metabolic declines associated with cancer treatment.8 Some of the most common side effects in women taking AIs are musculoskeletal symptoms, including arthralgias and myalgias, which promote deconditioning and sarcopenia and their associated side effects.9 Because of the prolonged use of AIs in postmenopausal breast cancer patients and the improvements in cancer-related outcomes that are observed with their use, great efforts are taken to reduce AI induced musculoskeletal symptoms (AIMSS) to maintain adherence to treatment. While multiple strategies are used to manage AIMSS, current therapies mainly focus on interventions in patients who develop symptoms (tertiary prevention) rather than primary prevention.9 Exercise interventions in breast cancer patients also improve QOL, decrease fatigue, and increase physical function and strength.10,11 Understanding the role of exercise in AI side effect prevention will allow us to translate these findings into therapy guidelines.

Studietyp

Interventionell

Inskrivning (Faktisk)

5

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

    • Maryland
      • Baltimore, Maryland, Förenta staterna, 21201
        • Baltimore VA Medical Center

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

40 år till 80 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Kvinna

Beskrivning

Inclusion Criteria:

  • At least mild fatigue in 2 of the 4 areas of the Piper Fatigue Scale (score ≥ 1-3)
  • Completion of standard surgery +/- chemotherapy for breast cancer (may undergo radiation therapy during study)
  • 25-OH vitamin D > 20 ng/ml
  • Histological evidence of stage I-III hormone receptor-positive breast cancer
  • Body Mass Index >/=18 and <50 kg/m2
  • 40-80 years of age
  • Non-smoking (non smoking for at least 12 months: cigarettes, cigars, pipes
  • Menopause over one year (absence of menses for 12 months or greater)
  • Sedentary (exercise no >60 min 2 times/week)

Exclusion Criteria:

  • Taking oral steroids, warfarin, or other medications interfering with fat metabolism that may not be safely discontinued temporarily for specific produces (i.e. for 72 hours prior)
  • Symptomatic heart disease, coronary artery disease, congestive heart failure, or uncontrolled hypertension (systolic blood pressure over 180 mm HG)unless medically stabilized
  • Participant is, in the opinion of the investigator, unable to adhere to the study protocol due to medical or orthopedic conditions that limit ability to exercise or travel to the Baltimore VA for protocol procedures
  • Chronic pulmonary disease (on supplemental O2)
  • Abnormal renal function (BUN above 40 mg/dl, Cr above 1.3 mg/dl, CrCl<60mg/dl)
  • Unstable lymphedema
  • Evidence of cancer metastases or recurrence
  • Anemia HCT below 30 mg/dl, platelets below 80,000/cm3
  • Type 1 diabetes; insulin treatment for diabetes, poorly controlled diabetes, HgA1c>10%
  • Abnormal response to exercise test (ST segment depression greater than 2mm, chest pain, significant arrhythmias, extreme shortness of breath, cyanosis, exercising BP above 240/120 mm HG, or other contraindications to exercise) confirmed with further diagnostic evaluations.
  • Abnormal liver function
  • Untreated dyslipidemia with National Cholesterol ATPIII 10 year cardiac risk score greater than 10% (www.nhlbi.nih.gov/guidelines/cholesterol/atp3upd04.htm)
  • Metal implants or devices (i.e. pacemaker) if undergoing CT scan
  • History of seizures or taking anti-seizure or anti convulsion medication
  • Allergic to lidocaine
  • Mini-mental state examination below 24, dementia, or unstable clinical depression by exam

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Förebyggande
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Structured Exercise
Structured and supervised aerobic and resistance training 2 times per week
Structured and supervised aerobic and resistance training 2 times per week
Aktiv komparator: Usual Care
Subjects will be counseled on American Cancer Society and American College of Sports Medicine physical activity and nutritional guidelines at the initiation of the study. Study participants will be contacted by a physician or nurse on weeks 2, 6, 10, and 14 to provide support and encouragement to patients.
Subjects will be counseled on American Cancer Society and American College of Sports Medicine physical activity and nutritional guidelines at the initiation of the study. Study participants will be contacted by a physician or nurse on weeks 2, 6, 10, and 14 to provide support and encouragement to patients.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Fatigue
Tidsram: Baseline
Fatigue (questionnaires) and muscle performance (muscle strength, endurance, and function)
Baseline
Muscle performance (muscle strength, endurance, and function) Fatigue and Muscle Performance
Tidsram: 16 weeks
Fatigue (questionnaire) and muscle performance (muscle strength, endurance, and function)
16 weeks
Musculoskeletal symptoms (VASpain, HAQ-DI)
Tidsram: 16 weeks
Musculoskeletal symptoms (VASpain, HAQ-DI)
16 weeks

Sekundära resultatmått

Resultatmått
Tidsram
Glucose Tolerance and Inflammation
Tidsram: Baseline
Baseline
Glucose Tolerance and Inflammation
Tidsram: 16 weeks
16 weeks

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

  • Huvudutredare: Susan Kesmodel, MD, Baltimore VAMC

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 november 2013

Primärt slutförande (Faktisk)

1 september 2015

Avslutad studie (Faktisk)

1 september 2015

Studieregistreringsdatum

Först inskickad

27 september 2013

Först inskickad som uppfyllde QC-kriterierna

27 september 2013

Första postat (Uppskatta)

7 oktober 2013

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

26 november 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

25 november 2015

Senast verifierad

1 november 2015

Mer information

Termer relaterade till denna studie

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