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Bruera, E., Yennurajalingam, S., Palmer, J.L., Perez-Cruz, P.E., Frisbee-Hume, S., Allo, J.A., . . . Cohen, M.Z. (2013). Methylphenidate and/or a nursing telephone intervention for fatigue in patients with advanced cancer: A randomized, placebo-controlled, phase II trial. Journal of Clinical Oncology, 31(19), 2421–2427. 

Study Purpose

Compare the effects of methylphenidate (MP) (psychostimulant) with those of a placebo (PL) on cancer-related fatigue. The effect of a combined intervention including MP plus a nursing telephone intervention (NTI) also was assessed.

Intervention Characteristics/Basic Study Process

Patients with a fatigue score of greater than or equal to 4 out of 10 on the Edmonton Symptom Assessment Scale (ESAS) randomly were assigned to one of the following four groups: MP plus NTI, PL plus NTI, MP plus control telephone intervention (CTI), and PL plus CTI.

Sample Characteristics

  • N = 141
  • MEDIAN AGE = 58 years
  • MALES: 33%, FEMALES: 67%
  • KEY DISEASE CHARACTERISTICS: Diagnosis of advanced cancer
  • OTHER KEY SAMPLE CHARACTERISTICS: Four or above on the ESAS, normal score on the Mini Mental State Examination (MMSE), no severe comorbid conditions including severe anxiety, major depression, substance abuse, or erythropoietin use

Setting

  • SITE: Multi-site  
  • SETTING TYPE: Outpatient  
  • LOCATION: Outpatient palliative care and oncology clinics at MD Anderson Cancer Center and at Lyndon B. Johnson General Hospital, both in Houston, TX

Phase of Care and Clinical Applications

  • PHASE OF CARE: Mutliple phases of care
  • APPLICATIONS: Pediatrics, elder care, palliative care

Study Design

Randomized, controlled trial; placebo controlled

Measurement Instruments/Methods

  • Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F)
  • ESAS
  • MMSE
  • Hospital Anxiety and Depression Scale (HADS)
  • Pittsburgh Sleep Quality Index (PSQI)

Results

The groups MP alone, NTI alone, or MP plus NTI proved not significantly better than PL for cancer-related fatigue. Anxiety improved with the telephone intervention (p = .01), as did sleep (p < .001).

Conclusions

MP, used alone or in combination with NTI, was not superior to the control group or the PL for fatigue or depression. NTI was associated with improvement in anxiety and sleep.

Limitations

  • Risk of bias (no blinding)
  • No statistical control for multiple comparisons, which could lead to a type one error
  • Limited duration of two weeks  
  • Content of CTI not described

Nursing Implications

Although the use of MP did not prove to be effective for cancer-related fatigue, several cancer-related symptoms significantly were improved with NTI. Further research in this area would be ideal, but NTIs remain potentially effective for patient support and education and can have a positive effect on patient experience.

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Bruera, E., Sweeney, C., Willey, J., Palmer, J.L., Strasser, F., Morice, R.C., et al. (2003). Randomized controlled trial of supplemental oxygen versus air in cancer patients with dyspnea. Palliative Medicine, 17(8), 659–663.

Study Purpose

The objective of the study is to determine the effectiveness of oxygen versus air to decrease dyspnea and fatigue and to increase distance walked during a six-minute walk test.

Intervention Characteristics/Basic Study Process

Oxygen or air was delivered via nasal cannula during a six-minute walk test.

Sample Characteristics

The study reported on a sample of 33 patients.

The study had the following inclusion criteria.

  • Ambulatory patients with normal cognitive status
  • Hemoglobin greater than 10
  • No evidence of acute respiratory distress
  • Resting pulse oxygenation percent greater than 90%

Patients were excluded if they were on oxygen therapy.

Study Design

Double-blind, randomized, controlled crossover study

Measurement Instruments/Methods

Fatigue and dyspnea were evaluated by a visual analog scale (0 = absence of symptoms and 10 = worst possible symptoms). Respiratory rate and heart rate were monitored. The outcomes measured were dyspnea at three and six minutes, fatigue at six minutes, and distance walked. This was repeated when patients received the crossover treatment. Patients and researchers both rated dyspnea. Oxygen saturation was measured at baseline before the crossover and at completion of the study.

Results

No significant differences were noted between the two groups observed. Dyspnea score at three minutes, dyspnea score at six minutes, fatigue score at six minutes, and distance in feet walked at six minutes were not statically significant (p > 0.52). The authors concluded that the routine use of supplemental oxygen for dyspnea during exercise in this patient population cannot be recommended.

Limitations

  • The study had a small sample size of 33.
  • It was a small single-site study.
  • No pulse oximetry measurements were taken at the beginning or end of the six-minute exercise.
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Bruera, E., de Stoutz, N., Velasco-Leiva, A., Schoeller, T., & Hanson, J. (1993). Effects of oxygen on dyspnoea in hypoxaemic terminal-cancer patients. Lancet, 342(8862), 13–14.

Study Purpose

The objective of the study is to assess oxygen therapy in patients with cancer.

Intervention Characteristics/Basic Study Process

Patients received two courses of oxygen at 5 L per minute and two courses of room air at 5 L per minute. Patients were randomized to either air or oxygen and then crossed over to the other treatment.

Sample Characteristics

The study reported on a sample of 14 patients with hypoxemic dyspnea caused by advanced cancer previously treated with supplemental oxygen. Patients had normal cognitive function (MMSE score of at least 24/30) and hypoxemia (oxygen saturation less than 90% when patients breathed room air for more than five minutes). All were receiving oxygen via nasal cannula at 4 L per minute.

Study Design

The study was a prospective, crossover, double-blind trial.

Measurement Instruments/Methods

A baseline assessment occurred after 30 minutes of bed rest and a minimum of 5 minutes of stable oxygen saturation on room air. Dyspnea was assessed with VAS (0 = none to 100 = most). RR was measured for one minute twice; the results were averaged and assigned a score of 1–4 for RR. Patients made blind choices as to which treatment was most beneficial. Pulse oximetry evaluations also were recorded.

Results

Oxygen saturation, respiratory rate and effort, and VAS were significantly better on oxygen (p < 0.0001). Researchers concluded that oxygen is beneficial to patients with hypoxia and dyspnea at rest.

Limitations

  • The study had a small sample size.
  • The taste or smell of oxygen experienced by patients was not mentioned.
  • The validity of the double-blind design is questioned.
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Bruera, E., Sala, R., Spruyt, O., Palmer, J. L., Zhang, T., & Willey, J. (2005). Nebulized versus subcutaneous morphine for patients with cancer dyspnea: a preliminary study. Journal of Pain and Symptom Management, 29, 613–618.

Study Purpose

To compare subcutaneous (SC) injection versus nebulized morphine (median dose of 45 mg, equal to half of the scheduled equivalent opioid dose) on two separate days; because nebulized morphine is thought to have rapid onset of action and low systemic absorption, adverse effects may be avoided.

Sample Characteristics

  • The sample was comprised of 11 patients. 
  • Median age was 58 years.
  • Patients were included if they
    • Had dyspnea (at least 3 on a scale of 0–10 in which 10 = worst dyspnea not related to acute complication) and advanced cancer with no clinical evidence of bronchospasm (predominant restrictive ventilation)
    • Were receiving regular oral or parenteral opioids
    • Had normal cognition.

Study Design

The study used a double-blind, randomized crossover trial design.

Measurement Instruments/Methods

  • Dyspnea self-reports on a 0–10 scale were measured at baseline (end of one hour of rest) and every 15 minutes for 1.5 hours and then every 30 minutes for the next three hours.
  • The main outcome was dyspnea score at 60 minutes.
  • Blind preference of treatment was assessed by patients and investigators.

Results

Significant improvement occurred in dyspnea scores from baseline to 60 minutes measured at 15-minute intervals for both SC (dyspnea score decreased from 5 to 3; p = 0.025) and nebulized morphine (dyspnea score decreased from 4 to 2; p = 0.007). No significant difference was found between SC and nebulized morphine for each time period. Bronchospasm was not observed in the nebulized treatment group.

Conclusions

Both routes were effective in this sample. The number of patients was insufficient to determine a difference between the routes.

Limitations

  • The study had a very small sample size and insufficient power to rule out a significant difference between the two routes.
  • Recruiting patients with continuous dyspnea (at rest) was very difficult.
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Bruera, E., Macmillan, K., Pither, J., & MacDonald, R.N. (1990). Effects of morphine on the dyspnea of terminal cancer patients. Journal of Pain and Symptom Management, 5(6), 341–344.

Study Purpose

The objective of this study was to assess the effect of one dose of subcutaneous (SC) morphine on dyspnea in patients with terminal cancer.

Intervention Characteristics/Basic Study Process

Patients were given 2.5 times their regular dose of morphine, administered at the time of their scheduled analgesic dose. In five patients who were not receiving opioids, the dose was 5 mg of morphine. The average dose administered was 22–28 mg.

Sample Characteristics

The study reported on a sample of 20 consecutive patients with terminal cancer; all patients had severe dyspnea at rest because of restrictive respiratory failure.

Setting

The study was conducted on a palliative care unit.

Study Design

The study was an open, uncontrolled trial.

Measurement Instruments/Methods

  • Dyspnea visual analog scale (VAS) and pain VAS were measured before the dose and every 15 minutes for 150 minutes.
  • Respiratory rate, respiratory effort, arterial oxygen saturation (SO2), and end-tidal arterial carbon dioxide pressure (PaCO2) were determined before and 45 minutes after SC morphine.

Results

  • A statistically significant improvement in dyspnea was seen without any significant change in respiratory rate, respiratory effort, oxygen saturation, or PaCO2.
  • In patients with pain, the effect of morphine on dyspnea had a shorter duration than the analgesic effect.
  • Toxicity was minimal and consisted of nausea.
  • Of 20 patients, 19 reported improved dyspnea after SC morphine and continued to receive the same dose for dyspnea on an as-needed basis with continued relief.
  • Authors suggest the need for confirmation with a double-blind study.

Limitations

The study had a small sample size.

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Bruera, E., Miller, M.J., Macmillan, K., & Kuehn, N. (1992). Neuropsychological effects of methylphenidate in patients receiving a continuous infusion of narcotics for cancer pain. Pain, 48(2), 163–166.

Study Purpose

This study was conducted to assess the effects of methylphenidate (MPH) on neuropsychological functions for patients with cancer on continuous subcutaneous (SQ) infusion of narcotics for pain.

Intervention Characteristics/Basic Study Process

Participants were assessed immediately before and two hours after dose for two days.

Sample Characteristics

  • The total number of participants was 20. Nineteen were used in data analyses.
  • The average participant age was 55 ± 12 years
  • 60% of participants were male and 40% were female. 
  • Participants had varied solid tumors, including lung, gastrointestinal, breast, prostate, and ovarian cancer.
  • Participants were required to have received narcotics for at least five days before admittance to the study.
  • No rescue doses were given to participants during the time frame of 7–10 am.

Setting

The study took place at Edmonton General Hospital in Alberta, Canada.

Study Design

The study was a randomized, double-blind, placebo-controlled, crossover trial.

Measurement Instruments/Methods

  • Finger Tapping Test for motor function
  • 20-item arithmetic test (5 questions each on addition, subtraction, multiplication, and division)
  • Reverse Memory of Digits—attention Visual memory (VM) for attention and visual memory
  • Subjective interview in which patients described which treatment helped more with confusion and sleepiness
  • Edmonton Staging System for Cancer Pain (Stage I, II, III) Visual Analogue Scale for pain, nausea, drowsiness, confusion, depression, and activity

Results

Significant improvement was noted in drowsiness, confusion, tapping speed, arithmetic skills, reverse digits, and visual memory (p < 0.001). Patients and investigators blindly chose MPH as more effective over the placebo in 13 of 14 cases.

Conclusions

In patients with cancer who had significant pain, immediate improvements in alertness, attention, and memory were noted. 

Limitations

  • The study had a small sample size.
  • There was no control group as a comparison.
  • No temporal level was provided of how long the MPH treatment would be beneficial.
  • The study displayed limited cognitive assessment and lack of follow-up.
  • The study was limited to patients on stable narcotic infusion.
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Bruera, E., Neumann, C.M., Pituskin, E., Calder, K., Ball, G., & Hanson, J. (1999). Thalidomide in patients with cachexia due to terminal cancer: Preliminary report. Annals of Oncology, 10, 857–859.

Intervention Characteristics/Basic Study Process

Patients received 100 mg of thalidomide by mouth at night for 10 days. If improvement was shown, patients could continue.

Sample Characteristics

  • A total of 72 patients entered the study; 37 were evaluable.
  • Patients were eligible for study if they
    • Had metastatic cancer
    • Were not receiving antineoplastic therapy
    • Experienced weight loss of more than 5% of usual weight
    • Had a life expectancy of more than two weeks
    • Had normal cognition
    • Were postmenopausal or had no possibility of becoming pregnant; men could not have sexual activity with women who could become pregnant.

Study Design

This was an open-label study.

Measurement Instruments/Methods

  • Visual analog scale measuring
    • Difficulty falling asleep
    • Morning restedness
    • Insomnia
    • Nausea
    • Appetite
    • Sensation of well-being
  • Caloric intake form

Results

More than 30% improvement in symptom intensity was observed in the following parameters: difficulty falling asleep (17/35 = 49%), morning restedness (23/36 = 64%), insomnia (22/32 = 69%), nausea (16/36 = 44%), appetite (22/35 = 63%), and well-being (18/34 = 53%). Twenty-seven patients completed food intake forms on days 1 and 10. Caloric intake increased from 1,325 to 1,531 calories per day (p = 0.047). Three patients discontinued thalidomide because of adverse effects: dizziness (1) and drowsiness (2).

Limitations

  • The study had a high attrition rate and poor compliance, possibly because of survival expectations of only more than 2 weeks.
  • The study was open and subject to bias.

Nursing Implications

Findings need to be confirmed in double-blind studies.

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Bruera, E., Strasser, F., Palmer, J.L., Willey, J., Calder, K., Amyotte, G., & Baracos, V. (2003). Effect of fish oil on appetite and other symptoms in patients with advanced cancer and anorexia/cachexia: A double-blind, placebo-controlled study. Journal of Clinical Oncology, 21, 129–134.

Study Purpose

To evaluate the efficacy of 1,000 mg fish oil capsules versus placebo of 1,000 mg olive oil capsules in a two-arm trial

Intervention Characteristics/Basic Study Process

A daily dose of 18 capsules was given over a two-week period. Dosage decreased to a minimum of six capsules daily secondary to intolerance. Mean eicosapentaenoic acid (EPA) dose was 1.8 g/day. Docosahexaenoic acid dose was 1.2 g/day.

Sample Characteristics

  • Eligibility requirements were presence of anorexia (> 3 on visual analog scale) plus weight loss (> 5% pre-illness weight), ability to maintain oral food intake over the course of study, normal cognition (using Mini-Mental State Score), written informed consent, and advanced cancer (locally recurrent or metastatic disease).
  • Sample size was 91 patients at outset, then randomized to 45 for study and 46 for placebo. After attrition, 30 patients for both groups completed the study.

Setting

The two-site trial was conducted in the Acute Palliative Care Unit at Grey Nuns Hospital and the inpatient and outpatient areas at Cross Cancer Institute in Edmonton, Alberta, Canada.

Study Design

A randomized, placebo-controlled, double-blinded trial design was used.

Measurement Instruments/Methods

  • Visual analog scale (VAS) used to measure appetite, nausea, tiredness, and well-being
  • Anthropometric measures of height, weight, body composition, muscular circumference, and skinfolds done in the office on days 1 and 14
  • Functional level measured with Karnofsky Performance Status Scale and the Edmonton Functional Assessment Tool
  • Plasma phospholipids
  • Nutritional intake diary

Results

Five patients in each group left the study secondary to gastrointestinal intolerance. There was no significant difference in any of the subjective or objective parameters between the two groups. Both groups showed an equal trend toward improved appetite, –9.8 for the fish oil and –9.0 for the olive oil placebo on the VAS.

Limitations

  • Length of study was limited to two weeks. Period was based on previous megestrol acetate trial results and perceived need for short-term symptomatic amelioration.
  • Original study design was altered secondary to gastrointestinal intolerance: 18 capsules down to a minimum of 6 capsules per day. There was variance in actual amounts taken.
  • High attrition rate of 31% brings into question whether the original sample size was large enough and if the ultimate results were underpowered.
  • Whether the lack of significant findings was due to a reduced dose of fish oil or because of the short duration of study is questionable.
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Bruera, E., Roca, E., Cedaro, L., Carraro, S., & Chacon, R. (1985). Action of oral methylprednisolone in terminal cancer patients: A prospective randomized double-blind study. Cancer Treatment Reports, 69, 751–754.

Study Purpose

To compare the effectiveness of oral methylprednisolone against placebo for relief of symptoms in patients with terminal cancer (pain, psychiatric status, appetite, nutritional status, and daily activity)

Intervention Characteristics/Basic Study Process

Participants were randomized to two groups, one receiving a placebo and the other receiving oral methylprednisolone (MP).

  • Days 0–4: Participants received 16 mg of of oral MP or the placebo.
  • Days 5–7: No treatment was given.
  • Day 8: Crossover
  • Days 8–12: Participants received oral MP versus placebo.
  • Day 13: The double-blind was completed, then all participants received 32 mg of oral MP daily for 20 days.

Participants were evaluated in in the morning on days 0, 5, 13, and 33.

Sample Characteristics

  • The study reported on a sample of 40 patients.
  • Patients were included if they were terminally ill with cancer, had not received anticancer therapy for four weeks prior to the study, and were not on medication except for analgesic mediation (propoxyphene compound).
  • Patients were excluded if they had diabetes, infection, history of peptic ulcer disease, or severe psychiatric disturbances.

Study Design

A randomized, double-blind, crossover trial design was used.

Measurement Instruments/Methods

The following symptoms were measured.

  • Pain
  • Psychological status: Hamilton Rating Scales for depression (HAM-D) and anxiety (HAM-A) were used.
  • Appetite: The mean amount of food eaten was measured. Patients evaluated themselves using a visual analog scale (VAS).
  • Nutritional status: Daily weight, skinfold measurement, and serum albumin levels were monitored. 
  • Activity: An interview was conducted with the nurse, participant, and family regarding the participant's ability to perform and engage in activities of daily living (ADL).

Results

At the completion of the study, 31 participants were evaluated. They showed significant improvement in pain, depression, appetite, and food consumption. No improvement was noted in anxiety or performance status. 

No change in nutritional status was observed in either arm of the study. All parameters sensitive to MP reached maximum improvement during the first phase of the study. Eight of 23 participants who initially responded to MP were not experiencing symptomatic benefit from the drug by day 33.

Conclusions

The study suggested that short courses of corticosteroids can be given to severely symptomatic patients with advanced cancer who have no major contraindications.

Limitations

  • The study had a small sample size, but looked at a wide variety of symptoms experienced by patients with cancer at the end of life, not just appetite and food intake.
  • The corticosteroids had side effects of cushingoid features, increased anxiety, and mild fluid retention.
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Brown, J.C., Troxel, A.B., & Schmitz, K.H. (2012). Safety of weightlifting among women with or at risk for breast cancer-related lymphedema: Musculoskeletal injuries and health care use in a weightlifting rehabilitation rrial. The Oncologist, 17(8), 1120–1128.

Study Purpose

To compare the risk of musculoskeletal injury in women with or at risk for lymphedema between a weight-lifting program and standard care

Intervention Characteristics/Basic Study Process

Women were randomized to receive twice weekly weight lifting or standard care for one year. Patients in both groups attend one hour of education on lymphedema. Women in the weight-lifting group received twice weekly group-based supervised instruction on proper biomechanics. Sessions lasted 90 minutes and included upper- and lower-body exercises and 10 minutes of aerobics and static stretching. If there were no changes in arm symptoms at a given weight, the weight was increased by 1 lb.  There was no upper limit on maximum weight lifted over one year. Patients with lymphedema wore a custom-fitted compression garment during exercise. Data were compared to weight-lifting injury rate data among a general population.

Sample Characteristics

  • The study sample (N = 243) was comprised of female patients with breast cancer.
  • Mean age was 55.8 years.
  • Time since cancer diagnosis ranged from 39–88 months.
  • Fifty-nine percent of patients had stage I disease.
  • Eight percent of patients were taking tamoxifen at the time of the study.
  • The majority of patients had at least some college education and were White; 37% were Black.

Setting

The study took place in the eastern United States.

Phase of Care and Clinical Applications

The study has clinical applicability for late effects and survivorship.

Study Design

The study used a radonmized controlled trial design with epidemiological analysis comparison.

Measurement Instruments/Methods

  • Patients completed the International Physical Activity Questionnaire.
  • Anthropometric measures were used.
  • Strength measurements were taken.
  • Patients were interviewed regarding adherence.
  • Self-reported healthcare use rates were reported.
  • Arm volume was measured via bioimpedence monthly.
  • Cirumferences and water displacement volume were measured.

Results

Strength was better in the weight-lifting group at 12 months compared to usual care controls (p = 0.03). Patients with lymphedema had greater odds of a musculoskeletal injury compared to controls (OR 19.9, 95% CI 5.1–77, p = 0.001). Patients at risk for lymphedema in the weight-lifting group did not have higher odds of injury. Injury rate per 1,000 reported exercise sessions among patients who did the weight-lifting was less than weight-lifting injury rates among a comparison group of premenopausal women. Six women in the weight-lifting group reported shoulder injuries, one had a wrist injury, and three had lower-body injury. Healthcare use in the control group was not reported.

Conclusions

Weight lifting in women with and at risk for lymphedema appears to be safe, with no more frequent injury rates than those seen in other women; however, musculoskeletal injuries did occur. This points to the need for supervision and communication with professional healthcare providers when delivering a weight-lifting program.

Limitations

  • The study has a risk of bias because no blinding was done.
  • Measurement validity and reliability are questionable.
  • No information about any changes in lymphedema were provided in the report (reported elsewhere with main study findings) and healthcare use data was only provided for patients who were involved in weight lifting. 
  • Injury findings were not fully discussed, in terms of likelihood of being caused by weight lifting. The method of injury measurement was based on patient recall on a survey done at 12 months—patients may not have remembered all injuries. 
  • It is not clear if patients adhered to schedule of weight lifting, and comparable activities in the control group were not described or discussed

Nursing Implications

Findings suggest that women with or at risk for lymphedema can safely do weight lifting, although, as with women without these problems, musculoskeletal injuries can occur. It appears that shoulder injuries were most common. These results point to the importance of supervision and monitoring by appropriate professionals during any weight-lifting program.

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