Serum interleukin-6 predicts the development of multiple symptoms at nadir of allogeneic hematopoietic stem cell transplantation

The role of cytokines and Indolamine-2.3 dioxygenase in experiencing a psycho-neurological symptom cluster in hematological cancer patients: IL-1alpha, IL-1beta, IL-4, IL-6, TNF-alpha, kynurenine, and tryptophan

OBJECTIVE

This study examined (a) whether there are a subgroup of cancer patients experiencing the selected psycho-neurological symptoms as a cluster (depression, cognitive impairment, fatigue, sleep disturbance, and pain); (b) whether demographic and clinical characteristics and pro-inflammatory cytokines (IL-1α, IL-1β, IL-4, IL-6, TNF-alpha) are associated with subgroup membership; and (c) whether the activity of indolamine-2.3 dioxygenase(IDO) is associated with pro-inflammatory cytokine activity and psycho-neurological symptom cluster experience.

METHODS

This was a prospective cohort study where 149 hematologic patients were recruited from a university hospital and 65 healthy volunteers provided control data. Latent profile analyses were conducted to identify subgroups at two time points: the last day of chemotherapy and 1 week after chemotherapy completion. Influencing factors of subgroup membership were examined by logistic regression.

RESULTS

A substantial number of patients (33%, 34% at each time point) experienced the selected psycho-neurological symptoms as a cluster. Older age and elevated IL-1α and IL-6 were associated with experiencing the psycho-neurological symptom cluster. IDO activity was higher in the patients experiencing psycho-neurological symptom cluster; and was positively associated with IL-6. Symptom severity, IL-1α, IL-6, and IDO activity were all significantly higher in cancer patients than in the healthy controls. The findings were preserved across time points.

CONCLUSIONS

The activation of pro-inflammatory cytokines and their cross-talk with IDO may be a common biological mechanism, underlying a psycho-neurological symptom cluster experience. The novel approaches for symptom assessment and management can be developed by assessing multiple psycho-neurological symptoms as a cluster and by targeting their common biological pathway.

Inflammatory cytokines and depression symptoms following hematopoietic cell transplantation

Increased synthesis and release of inflammatory signalling proteins is common among individuals with hematologic malignancies undergoing hematopoietic cell transplantation (HCT) due to intensive conditioning regimens and complications such as graft-versus-host-disease and infections. Prior research indicates that inflammatory responses can activate central nervous system pathways that evoke changes in mood. This study examined relationships between markers of inflammatory activity and depression symptoms following HCT. Individuals undergoing allogeneic (n = 84) and autologous (n = 155) HCT completed measures of depression symptoms pre-HCT and 1, 3, and 6 months post-HCT. Proinflammatory (IL-6, TNF-α) and regulatory (IL-10) cytokines were assessed by ELISA in peripheral blood plasma. Mixed-effects linear regression models indicated that patients with elevated IL-6 and IL-10 reported more severe depression symptoms at the post-HCT assessments. These findings were replicated when examining both allogeneic and autologous samples. Follow-up analyses clarified that relationships were strongest for neurovegetative, rather than cognitive or affective, symptoms of depression. These findings suggest that anti-inflammatory therapeutics targeting an inflammatory mediator of depression could improve quality of life of HCT recipients.

A prospective study of dysgeusia and related symptoms in patients with multiple myeloma after autologous hematopoietic cell transplantation

BACKGROUND

Dysgeusia is a common but understudied complication in patients undergoing autologous hematopoietic cell transplantation (auto-HCT). We assessed the feasibility of using chemical gustometry (CG) to measure dysgeusia and explored its associations with symptom burden, nutrition, chemotherapy pharmacokinetics (PK), and the oral microbiome.

METHODS

We conducted a single-center, prospective feasibility study (NCT03276481) of patients with multiple myeloma undergoing auto-HCT. CG was performed longitudinally testing five flavors (sweet, sour, salty, bitter, umami) to calculate a total taste score (maximum score, 30). We measured caloric intake and patient-reported symptoms, assessing their correlation with oral microbiota composition and salivary and blood melphalan PK exposure.

RESULTS

Among all 45 patients, 39 (87%) completed at least four (>60%) and 22 (49%) completed all six CG assessments. Median total CG scores remained stable over time but were lowest at day +7 (27, range 24-30) with recovery by day +100. Symptom burden was highest by day +10 (area under the curve, 2.9; range, 1.0-4.6) corresponding with the lowest median overall caloric intake (1624 kcal; range, 1345-2267). Higher serum/salivary melphalan levels correlated with higher patient-reported dysgeusia and lower caloric intake. Oral microbiota α-diversity was stable early and increased slightly by day +100.

CONCLUSIONS

Assessment of dysgeusia by CG is feasible after auto-HCT. Most dysgeusia, symptom burden, and lowest caloric intake occurred during the blood count nadir. Higher melphalan concentrations correlated with more dysgeusia and poorer caloric intake. Future studies will aim to modulate melphalan exposure by PK-targeted dosing and characterize patient taste preferences to personalize diets for improved nutritional intake.

LAY SUMMARY

Taste changes after cancer treatments are very common. We used chemical gustometry (taste testing) to study taste changes and to better understand why patients with multiple myeloma experience this symptom after autologous hematopoietic cell transplantation. We found that taste testing was feasible, taste changes peaked when blood counts were lowest, and most patients recovered their taste by 100 days after transplantation. Taste changes correlated with lower food intake and with higher levels of chemotherapy in the body. Future work will focus on using personalized chemotherapy doses to reduce taste changes and to match patients' individual taste preferences with their diets.

Biobehavioral Implications of Covid-19 for Transplantation and Cellular Therapy Recipients

A growing body of literature has emphasized the importance of biobehavioral processes - defined as the interaction of behavior, psychology, socioenvironmental factors, and biological processes - for clinical outcomes among transplantation and cellular therapy (TCT) patients. TCT recipients are especially vulnerable to distress associated with pandemic conditions and represent a notably immunocompromised group at greater risk for SARS-CoV-2 infection with substantially worse outcomes. The summation of both the immunologic and psychologic vulnerability of TCT patients renders them particularly susceptible to adverse biobehavioral sequelae associated with the Covid-19 pandemic. Stress and adverse psychosocial factors alter neural and endocrine pathways through sympathetic nervous system and hypothalamic-pituitary-adrenal axis signaling that ultimately affect gene regulation in immune cells. Reciprocally, global inflammation and immune dysregulation related to TCT contribute to dysregulation of neuroendocrine and central nervous system function, resulting in the symptom profile of depression, fatigue, sleep disturbance, and cognitive dysfunction. In this article, we draw upon literature on immunology, psychology, neuroscience, hematology and oncology, Covid-19 pathophysiology, and TCT processes to discuss how they may intersect to influence TCT outcomes, with the goal of providing an overview of the significance of biobehavioral factors in understanding the relationship between Covid-19 and TCT, now and for the future. We discuss the roles of depression, anxiety, fatigue, sleep, social isolation and loneliness, and neurocognitive impairment, as well as specific implications for sub-populations of interest, including pediatrics, caregivers, and TCT donors. Finally, we address protective psychological processes that may optimize biobehavioral outcomes affected by Covid-19.

Evaluation of cytokine profile in the different phases of the autologous hematopoietic stem cell transplantation in patients with multiple myeloma

BACKGROUND

The autologous hematopoietic stem cell transplantation (ASCT) is of fundamental importance in the treatment of patients with multiple myeloma (MM). Nevertheless, due to its toxicity, it decreases the number of bone marrow cells available, altering the cell interactions and causing an imbalance between pro- and anti-inflammatory cytokines.

METHODS

Thus, we determined the serum levels of pro- and anti-inflammatory cytokines in samples of patients with MM obtained from the different phases of ASCT.

RESULTS

In summary, the cytokines levels varied considering the different phases of ASCT. The levels of IL-1ra tend to increase in the post-apheresis period suggesting an anti-inflammatory role induced by the apheresis process. A response characterized by the increase in the concentrations of IL-5 and IL-8 was observed in the post-conditioning bone marrow aplasia phase. The rise in IL-5 levels was not correlated with any clinical or laboratory event in this framework; IL-8 was associated with positive blood cultures and seems to have an effect against microbial agents. The increase in the levels of IL-10 and IL-12 suggests a possible regulatory effect of the inflammatory response in the period of bone marrow recovery and IL-12 seems to be inversely associated with the presence of minimal residual disease.

CONCLUSIONS

Apheresis process seems to induce an anti-inflammatory response, followed by a pro-inflammatory response and a stimulus for granulocytes differentiation.

The Unique Symptom Burden of Patients Receiving CAR T-Cell Therapy

OBJECTIVES

There is little research on the patient experience of symptom burden from CAR T-cell therapy, and no validated measure specific to the symptoms of CAR T-cell therapy currently exists. The purpose of this study was to identify symptoms experienced and to determine the content domain for a patient-reported outcome (PRO) measuring symptom burden for patients who had received standard of care CAR T-cell therapy for advanced B-cell lymphoid malignancies.

DATA SOURCES

Semi-structured qualitative interviews were conducted with a sample of 21 patients who had received CAR T-cell therapy. Content analysis was used to define the symptom burden content domain.

CONCLUSION

Sixty-two percent of patients were interviewed within 3 months of therapy; 81.0% experienced cytokine release syndrome and 28.6% experienced neurotoxicity. Content analysis found 31 symptoms related to disease and treatment. The most common disease-related symptom identified by patients was pain (43%). The most common symptoms identified by patients as related to CAR T-cell therapy included fatigue (tiredness) (62%), lack of appetite (29%), headache (29%), chills or feeling cold (24%), and feeling confused (24%). The qualitative analysis also confirmed that symptoms interfere with daily activities, work, walking, relationships with others, mood, and enjoyment of life.

IMPLICATIONS FOR NURSING PRACTICE

Patients who receive standard CAR T-cell therapy experience numerous symptoms related to disease and CAR T-cell therapy, including symptoms related to the T-cell infusion. Symptoms may result in interference with daily activities, relationships, treatment adherence, and mood. Oncology nurses should be aware of and assess symptom related to CAR T-cell therapy.

Sleep Disruption, Fatigue, and Depression as Predictors of 6-Year Clinical Outcomes Following Allogeneic Hematopoietic Cell Transplantation

BACKGROUND

Allogeneic hematopoietic cell transplantation (HCT) is a widely used treatment for hematologic cancers, with survival rates ranging from 25% to 78%. Known risk factors for chronic graft-versus-host disease (cGVHD), a serious and common long-term complication, disease relapse, and mortality following HCT have been identified, but much of the variability in HCT outcomes is unexplained. Biobehavioral symptoms including depression, sleep disruption, and fatigue are some of the most prevalent and distressing for patients; yet research on biobehavioral risk factors for HCT outcomes is limited. This study evaluated patient-reported depression, sleep disruption, and fatigue as risk factors for cGVHD, disease relapse, and mortality.

METHODS

Adults receiving allogeneic HCT for a hematologic malignancy (N = 241) completed self-report measures of depression symptoms, sleep quality, and fatigue (severity, interference) pre-HCT and 100 days post-HCT. Clinical outcomes were monitored for up to 6 years.

RESULTS

Cox proportional hazard models (2-tailed) adjusting for patient demographic and medical characteristics revealed that high pre-HCT sleep disruption (Pittsburgh Sleep Quality Index >9; hazard ratio [HR] = 2.74, 95% confidence interval [CI] = 1.27 to 5.92) and greater post-HCT fatigue interference (HR = 1.32, 95% CI = 1.05 to 1.66) uniquely predicted increased risk of mortality. Moderate pre-HCT sleep disruption (Pittsburgh Sleep Quality Index 6-9) predicted increased risk of relapse (HR = 1.99, 95% CI = 1.02 to 3.87). Biobehavioral symptoms did not predict cGVHD incidence.

CONCLUSIONS

Biobehavioral symptoms, particularly sleep disruption and fatigue interference, predicted an increased risk for 6-year relapse and mortality after HCT. Because these symptoms are amenable to treatment, they offer specific targets for intervention to improve HCT outcomes.

Perception, magnitude, and implications of cancer-related fatigue in breast cancer survivors: Study from a developing country

Background

We have analyzed perceptions, magnitude, interventions adopted, and overall implications of cancer-related fatigue (CRF) in breast cancer survivors (BCSs).

Methodology

BCSs who attended follow-up clinic at our institute between January and June 2018 were asked to fill a questionnaire focused on assessing an individual's perception, severity, potential causes, implications on quality of life, and measures taken to deal with CRF.

Results

Sixty-five patients were included. Fifty-four (83%) had undergone surgery, 59 (91%) chemotherapy, 43 (66%) radiation therapy, and 36 (55%) hormonal/targeted therapy. Sixty-two (95%) patients experienced any grade CRF. Fifty-five (85%) patients experienced moderate to severe CRF affecting work (58%) and activities of daily living (27%). CRF was perceived as generalized weakness by 54 (83%) patients, diminished concentration/attention span by 24 (37%) patients, decreased motivation and interest in usual activities by 29 (45%) patients, and emotional labiality by 16 (25%) patients. Fifty-six patients (86%) believed that fatigue was due to the effect of cancer treatment on the body, while only 8 (12%) attributed it to underlying cancer. CRF had negative impact on mood, daily activities, interpersonal relationships, and professional work in 40 (62%), 39 (60%), 13 (20%), and 10 (15%) patients, respectively. Measures taken to overcome CRF were increased physical exercise, psychosocial interventions, mind-body interventions, and pharmacological interventions in 32 (49%), 8 (12%), 28 (43), and 17 (26%) patients, respectively. Thirty-nine (60%) patients reported persistence of CRF after completion of treatment while it took up to 6 months, 6-12 months, and more than 12 months for resolution of CRF in 13, 10, and 3 patients, respectively.

Conclusion

Development and persistence of CRF remains a major health concern, and current interventions are not able to mitigate this problem. Further research in this field is warranted.

Biobehavioral Research and Hematopoietic Stem Cell Transplantation: Expert Review from the Biobehavioral Research Special Interest Group of the American Society for Transplantation and Cellular Therapy

Hematopoietic stem cell transplantation (HCT) is a potentially curative treatment for many hematologic conditions. Despite advances in conditioning and supportive measures, however, there remain significant comorbidities that threaten survivorship. Adverse effects of stress-related biobehavioral processes-defined here as the interactions of behavioral, psychological, and socioenvironmental factors with biology-impact immune recovery and function and are particularly salient in the HCT context, given the importance of immune reconstitution for improved survivorship. However, biobehavioral processes have been underinvestigated in this vulnerable group compared with other cancer populations. Here the Biobehavioral Research Special Interest Group (SIG) of the American Society for Transplantation and Cellular Therapy provides an expert review to inform research directions explicating the biological correlates of behavioral symptoms and evaluate the impact of these on HCT outcomes. The goal of this expert review is to provide a foundation for advancing science that effectively integrates behavioral and biological processes to optimize quality of life and improve clinical outcomes for HCT recipients.

Gut Microbiota Dysbiosis Associated with Persistent Fatigue in Hematopoietic Cell Transplantation Survivors

Fatigue is one of the most prevalent and distressing complications among hematopoietic stem cell transplantation (HCT) survivors, negatively affecting physical, social, and emotional domains of quality of life. Chronic systemic inflammation has been linked to alterations in nervous system activity and initiation of distressing symptoms, such as fatigue. Damage to gut mucosa due to alteration in gut microbiota (GM) composition and microbial translocation has been shown to increase systemic proinflammatory cytokines. The aim of this study was to evaluate the relationship between fatigue and GM by measuring the differences in GM composition in HCT survivors with and without persistent fatigue. This cross-sectional study included 30 adults who underwent HCT for a hematologic disease and were at least 1 year post-HCT. Patients with chronic graft-versus-host disease were excluded. Fatigue severity was assessed by the Brief Fatigue Inventory (BFI). Based on the BFI score, patients were grouped into 2 categories: 0 to 3 (without fatigue) and ≥4 (with fatigue). The V1 to V3 region of the 16S rRNA gene from fecal specimens was sequenced using the Illumina MiSeq. Sequencing reads were processed, denoised, and replicated, chimeras were filtered, amplicon sequence variants (ASVs) were generated, and taxonomy was assigned using DADA2. Beta diversity analysis through principal coordinate analysis was generated using the Bray-Curtis dissimilarity matrix, and the difference was tested using linear model with generalized least squares in R. An alpha diversity analysis was performed using Chao1. Linear discriminant analysis effect size (LEfSe) was used to find markers that differ between the 2 groups. Based on the BFI results, patients were categorized into 2 cohorts: with fatigue (n = 14) and without fatigue (n = 16). The 2 cohorts were similar in terms of demographics, disease, and transplant characteristics. Based on the GM analysis, there was a significant difference in GM composition (beta diversity) between the 2 cohorts (P = .001). Alpha diversity (richness) was also significantly lower in survivors with fatigue (P =.002). LEfSe analysis identified 46 discriminative features (P < .05; linear discriminant analysis score >2) whose relative abundance varied significantly among individuals with fatigue and those without fatigue. Ten ASVs were associated with the patients with fatigue, and 36 ASVs were associated with those without fatigue. Several ASVs enriched in survivors with fatigue included organisms such as Klebsiella and Enterococcus, which have been implicated in inflammatory bowel diseases. The ASVs enriched in the cohort without fatigue were members of the Ruminococcaceae family (Oscillospira spp) and the Lachnospiraceae family (Fusicatenibacter and Coprococcus spp), which are known to have the ability to ferment complex plant carbohydrates. These findings show an association between GM composition and fatigue and suggest a microbial contribution to clinically significant fatigue post-HCT, which may guide the development of new approaches to treating fatigue based on manipulation of the GM.

The non-steroidal anti-inflammatory drug salsalate provides safe and effective control of mucositis-unrelated pain during autologous and allogeneic hematopoietic stem cell transplantation

INTRODUCTION

Pain is a serious adverse event which frequently accompanies hematopoietic stem cell transplantation (HSCT). The safety and efficacy of NSAIDS during HSCT is currently unknown. Salsalate is a platelet-sparing NSAID with a favorable toxicity profile compared with other NSAIDS. We report the safety and efficacy of salsalate for different types of pain during SCT.

METHODS

We conducted a retrospective study of SCT recipients empirically treated with salsalate for > 48 h. Pain scores were assessed using the verbal rating scale for pain. A subset analysis of patients who received > 7 days of salsalate during periods of pancytopenia, mucositis, and other end-organ toxicities is included.

RESULTS

Sixty-four patients, 42 auto- and 22 allografts, were identified. Reason for use: vertebral-related pain (30%), musculoskeletal (30%), and cytokine inflammatory pain syndromes (24%). Median dose 1500 mg/day, number of treatment days = 5, started on day+5 post-HSCT. Pain resolved/improved to pain score < 4 in 76% and stable in 15%. Forty-four patients (28-auto and 16 allografts) received > 7-day salsalate. Median WBC and platelet nadir were < 0.1 and 10,000 cells/ml respectively.

EFFICACY

pain was improved or eradicated in 64% and stable in 32%.

TOXICITY

LFT elevation (n = 2), elevated serum creatinine (n = 2), and minor bleed (n = 5-nose, gums, and urine). Salsalate discontinuation (n = 6): ineffective (n = 1), the liver (n = 1), the kidney (n = 1), > 5 platelet transfusions (n = 1), and vomiting (n = 2). There was no treatment related mortality. Salsalate was well tolerated, safe, and beneficial for several different types of pain during HSCT.

Understanding Symptom Burden in Patients With Advanced Cancer Living in Rural Areas

OBJECTIVES

To evaluate the feasibility of using a biobehavioral approach to examine symptom burden in rural residents with advanced cancer.

SAMPLE & SETTING

21 patients with advanced lung, colorectal, or pancreatic cancer were enrolled at the University of Iowa in Iowa City.

METHODS & VARIABLES

Using Cleeland's cytokine-immunologic model of symptom expression, symptom burden (i.e., severity, count, and interference) and inflammatory cytokines were measured for 24 weeks. Potential predictors included demographics, clinical characteristics, optimism, social support, and cancer-related stress. Descriptive statistics, Wilcoxon rank-sum, and Fisher's exact test were used for analysis.

RESULTS

Recruitment and retention rates were similar for rural and nonrural patients. Demographics, optimism, and social support were no different between groups. The cancer-related stress total score for rural patients was nearly half of the score of nonrural patients, with rural patients reporting significantly less avoidance. Symptom severity for the five worst symptoms remained moderate during the 24 weeks, whereas nonrural residents reported steady declines in severity of their five worst symptoms. Significant differences in inflammatory cytokines between groups were only found at one time point.

IMPLICATIONS FOR NURSING

Rural residents who seek care at a cancer center may be clinically and demographically more similar to their nonrural counterparts than to rural residents seeking local care.

Patient-reported outcomes in acute graft-versus-host disease: optimizing patient care and clinical trial endpoints

Patient-reported outcomes (PROs) refer to patient perceived and reported health-related quality of life (HRQOL), functional status, and symptom burden. PROs have become an important measure in oncologic care to identify the impact of the disease and its treatment on a patient's health status. Hematopoietic cell transplantation (HCT) is an aggressive and potentially curative therapy for patients with high-risk hematologic malignancies. A common complication of HCT is graft-versus-host disease (GVHD), which can be a significant contributor to morbidity and mortality, as well as a wide spectrum of physical and psychosocial effects. Quality of life and symptom burden have been shown to be important measures in the study of posttransplant complications, including chronic GVHD. We review the need for a novel tool in acute GVHD to capture disease symptoms and HRQOL to better understand patient symptoms, disease trajectory and outcome.

Assessing Cachexia Acutely after Autologous Stem Cell Transplant

Autologous hematopoietic stem cell transplantation (AHCT) is an accepted strategy for various hematologic malignancies that can lead to functional impairment, fatigue, muscle wasting, and reduced quality of life (QOL). In cancer cachexia, these symptoms are associated with inflammation, hypermetabolism, and decreased anabolic hormones. The relative significance of these factors soon after AHCT setting is unclear. The purpose of this study was to characterize the acute effects of AHCT on physical function, body composition, QOL, energy expenditure, cytokines, and testosterone. Outcomes were assessed before (PRE) and 30 ± 10 days after (FU) AHCT in patients with multiple myeloma (n = 15) and non-Hodgkin lymphoma (n = 6). Six-minute walk test (6MWT; p = 0.014), lean mass (p = 0.002), and fat mass (p = 0.02) decreased; nausea and fatigue increased at FU (both p = 0.039). Recent weight change and steroid exposure were predictors of reduced aerobic capacity (p < 0.001). There were no significant changes in interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF), energy expenditure, or bioavailable testosterone. Alterations in cytokines, energy expenditure, and testosterone were not associated with functional impairment acutely following AHCT. Recent history of weight loss and steroid exposure were predictors of worse physical function after AHCT, suggesting that targeting nutritional status and myopathy may be viable strategies to mitigate these effects.

Shenmai injection for the treatment of cancer-related fatigue in advanced non-small cell lung cancer patients undergoing chemotherapy: study protocol for a randomized controlled trial

BACKGROUND

Cancer-related fatigue (CRF) is the most common symptom in patients with advanced non-small cell lung cancer (NSCLC) undergoing treatment with chemotherapy. However, evidence upon which to base management strategies is scarce. Traditional Chinese Medicine (TCM) has been shown to be beneficial to patients with CRF. Chinese herbal injections should be administered under an evidence-based approach. This trial aims to assess the efficacy and safety of the addition of the Shenmai injection (SMI) to conventional therapy for CRF in NSCLC patients undergoing chemotherapy.

METHODS/DESIGN

The study is a two-group, prospective, randomized controlled trial (RCT) designed to evaluate the efficacy and safety of SMI for CRF NSCLC patients undergoing chemotherapy. Eligible participants will be randomized to either a treatment group receiving a 5-day Shenmai injection regimen plus conventional therapy or a control group receiving only conventional therapy. The primary outcome is fatigue, assessed using severity scores from the Functional Assessment for Chronic Illness Therapy-Fatigue (FACIT-F) measurement system. Secondary outcomes include symptom distress scores, depression, sleep disorders, quality of life, and levels of immunologic indicators. Assessments will be carried out at baseline and on day 5 (the end of the intervention).

DISCUSSION

This study can provide evidence to support clinical decision-making in the management of CRF in NSCLC patients undergoing chemotherapy in a way that can be scaled up and used throughout China.

TRIAL REGISTRATION

Chinese Clinical Trial Registry ( chictr.org.cn ), ChiCTR-INR-17013737 . Registered on 6 December 2017.

Persistent Fatigue in Hematopoietic Stem Cell Transplantation Survivors

BACKGROUND

Fatigue is highly prevalent after hematopoietic stem cell transplantation (HCT). It has been described as intense and may last for years following treatment.

OBJECTIVE

The aim of this study is to compare fatigue, physical activity, sleep, emotional distress, cognitive function, and biological measures in HCT survivors with persistent fatigue (n = 25) with age- and gender-matched healthy controls with occasional tiredness (n = 25).

METHODS

Data were collected using (a) objective, real-time assessments of physical activity and sleep over 7 days; (b) patient-reported fatigue assessments; (c) computerized objective testing of cognitive functioning; and (d) biological measures. Differences between groups were examined using multivariate analysis of variance.

RESULTS

Survivors of HCT reported increased physical (P < .001), mental (P < .001), and overall (P < .001) fatigue as well as increased anxiety (P < .05) and depression (P < .01) compared with healthy controls. Red blood cell (RBC) levels were significantly lower in HCT survivors (P < .001). Levels of RBC for both groups, however, were in the normal range. Tumor necrosis factor-α (P < .001) and interleukin-6 (P < .05) levels were significantly higher in HCT survivors.

CONCLUSIONS

Persistent fatigue in HCT survivors compared with healthy controls with occasional tiredness is accompanied by increased anxiety and depression along with decreased RBC counts. Elevated tumor necrosis factor-α and interleukin-6 levels may be important biomarkers.

IMPLICATIONS FOR PRACTICE

This study provides preliminary support for the conceptualization of fatigue as existing on a continuum, with tiredness anchoring one end and exhaustion the other. Persistent fatigue experienced by HCT survivors is more severe than the occasional tiredness of everyday life.

Biological Basis for the Clustering of Symptoms

OBJECTIVES

Identification of biologic pathways of symptom clusters is necessary to develop precision therapies for distressing symptoms. This review examined extant literature evaluating relationships between biomarkers and symptom clusters in cancer survivors.

DATA SOURCES

PubMed, CINAHL, Web of Science and Cochrane Library were searched using terms "biological markers" or "biomarkers" and "symptom cluster" or "symptom complex" or "multiple symptoms."

CONCLUSION

Biomarkers related to inflammation (eg, cytokines) were the most studied and showed the most significant relationships with clusters of symptoms. This review suggests that clustering of symptoms related to cancer or cancer therapy is linked to immune/inflammatory pathways.

IMPLICATIONS FOR NURSING PRACTICE

Understanding the etiology of symptom clusters may guide future nursing interventions for symptom management.

The evaluation of NT-proCNP, C-reactive protein and serum amyloid A protein concentration in patients with multiple myeloma undergoing stem cell transplantation

The importance of proinflamatory cytokines and acute phase proteins in pathogenesis and progression of MM is well known. However, there are any studies evaluating the role of NT-proCN in management and treatment of MM. The aim of our study was to evaluate the concentration of NT-proCNP and acute phase proteins in patients with MM before and after stem cell transplantation. We involved 40 newly diagnosed MM patients in stage III according to the Durie-Salmon classification and treated with high dose of melphalan (200mg/m2) prior to ASCT. Concentration of NT-proCNP, hs-CRP and SAA were measured before conditioning treatment and every 4days until the 24th day after stem cell infusion. We observed low NT-proCNP levels before conditioning treatment (0.121±0.04pmol/l), the higher in day on ASCT (0.28±0.14pmol/l). Further we showed significant gradual increase concentration of NT-proCNP up to 12days after stem cells infusion (1.07±0.72pmol/l). The kinetics of hs-CRP and SAA levels were similar to NT-proCNP. We showed positive correlation between NT-proCNP levels and absolute neutrophil and platelets count in patients after ASCT. NT-proCNP can be useful parameter to assess effectiveness of treatment and monitoring of hematopoetic recovery time in patients with MM after stem cell transplantations.

Risk factors for depression and fatigue among survivors of hematopoietic cell transplantation

BACKGROUND

Patients treated with hematopoietic cell transplantation (HCT) often experience depression and fatigue but analyses to determine risk factors have typically lacked statistical power. The current study examined sociodemographic and clinical risk factors for depression and fatigue in a large cohort of survivors of HCT.

METHODS

Measures of depression and fatigue were included in an annual survey of HCT recipients that also included self-reported sociodemographic and health information. Patient clinical characteristics were obtained from the clinical database.

RESULTS

The sample consisted of 1869 recipients (with a mean age of 56 years; 53% male) who were a mean of 13 years (allogeneic recipients) and 6 years (autologous recipients) from HCT. Moderate to severe depression was reported by 13% of participants; moderate to severe fatigue was reported by 42%. Among allogeneic recipients, female sex, younger age, current presence of chronic pain, and current patient-reported severity of chronic graft-versus-host disease were found to be independently associated with greater depression whereas female sex, current presence of chronic pain, and current severity of chronic graft-versus-host disease were independently associated with greater fatigue (P values <.01). Among autologous recipients, younger age and current presence of chronic pain were found to be independently associated with both greater depression and greater fatigue (P values <.01).

CONCLUSIONS

Rates of depression and fatigue in this group of survivors suggest a high symptom burden. Better screening, referral, and interventions are needed.

Suppression of Locomotor Activity in Female C57Bl/6J Mice Treated with Interleukin-1β: Investigating a Method for the Study of Fatigue in Laboratory Animals

Fatigue is a disabling symptom in patients with multiple sclerosis and Parkinson’s Disease, and is also common in patients with traumatic brain injury, cancer, and inflammatory disorders. Little is known about the neurobiology of fatigue, in part due to the lack of an approach to induce fatigue in laboratory animals. Fatigue is a common response to systemic challenge by pathogens, a response in part mediated through action of the pro-inflammatory cytokine interleukin-1 beta (IL-1β). We investigated the behavioral responses of mice to IL-1β. Female C57Bl/6J mice of 3 ages were administered IL-1β at various doses i.p. Interleukin-1β reduced locomotor activity, and sensitivity increased with age. Further experiments were conducted with middle-aged females. Centrally administered IL-1β dose-dependently reduced locomotor activity. Using doses of IL-1β that caused suppression of locomotor activity, we measured minimal signs of sickness, such as hyperthermia, pain or anhedonia (as measured with abdominal temperature probes, pre-treatment with the analgesic buprenorphine and through sucrose preference, respectively), all of which are responses commonly reported with higher doses. We found that middle-aged orexin^-/- mice showed equivalent effects of IL-1β on locomotor activity as seen in wild-type controls, suggesting that orexins are not necessary for IL-1β -induced reductions in wheel-running. Given that the availability and success of therapeutic treatments for fatigue is currently limited, we examined the effectiveness of two potential clinical treatments, modafinil and methylphenidate. We found that these treatments were variably successful in restoring locomotor activity after IL-1β administration. This provides one step toward development of a satisfactory animal model of the multidimensional experience of fatigue, a model that could allow us to determine possible pathways through which inflammation induces fatigue, and could lead to novel treatments for reversal of fatigue.

Biopsychosocial predictors of pain among women recovering from surgery for endometrial cancer

OBJECTIVE

This study investigated post-surgical changes in pain among endometrial cancer patients, as well as the extent to which emotional distress and inflammatory and regulatory cytokine levels were associated with pain.

METHODS

Women (N=71) who underwent surgery for endometrial cancer completed questionnaires assessing pain intensity and interference, depression, and anxiety at 1week, 4weeks, and 16weeks post-surgery. Participants also provided a blood sample for the analysis of a panel of 7 cytokines at the same time points.

RESULTS

Participants showed significant declines in pain intensity and pain interference from 1week to 4weeks post-surgery, after which pain remained stable. After adjusting for time since surgery, surgery type, adjuvant therapy, disease stage, age, and BMI, mixed-effects linear regression models indicated that greater depression and anxiety were associated with both greater pain intensity and interference. Higher levels of circulating IL-6 were also correlated with greater pain intensity, but not interference. Fixed-effects linear regression models indicated that temporal variation in depression, anxiety, and IL-6 within individual patients was associated with corresponding changes in pain. Pain symptoms were maximal when anxiety, depression, and IL-6 were highest. No other cytokines were associated with changes in pain.

CONCLUSION

These findings indicate that depression, anxiety, and IL-6 may exacerbate pain during the recovery period following surgery for a gynecologic malignancy. Targeting these psychological processes and the proinflammatory cytokine IL-6 in women with more severe and persistent pain may help to reduce suffering and improve post-surgical recovery.

Physical Exercise Training versus Relaxation in Allogeneic stem cell transplantation (PETRA Study) - Rationale and design of a randomized trial to evaluate a yearlong exercise intervention on overall survival and side-effects after allogeneic stem cell transplantation

Background

Allogeneic stem cell transplantation (allo-HCT) is associated with high treatment-related mortality and innumerable physical and psychosocial complications and side-effects, such as high fatigue levels, loss of physical performance, infections, graft-versus-host disease (GvHD) and distress. This leads to a reduced quality of life, not only during and after transplantation, but also in the long term. Exercise interventions have been shown to be beneficial in allo-HCT patients. However, to date, no study has focused on long-term effects and survival. Previous exercise studies used ‘usual care’ control groups, leaving it unclear to what extent the observed effects are based on the physical effects of exercise itself, or rather on psychosocial factors such as personal attention. Furthermore, effects of exercise on and severity of GvHD have not been examined so far. We therefore aim to investigate the effects and biological mechanisms of exercise on side-effects, complications and survival in allo-HCT patients during and after transplantation.

Methods/design

The PETRA study is a randomized, controlled intervention trial investigating the effects of a yearlong partly supervised mixed exercise intervention (endurance and resistance exercises, 3–5 times per week) in 256 patients during and after allogeneic stem cell transplantation. Patients in the control group perform progressive muscle relaxation training (Jacobsen method) with the same frequency. Main inclusion criterion is planned allo-HCT. Main exclusion criteria are increased fracture risk, no walking capability or severe cardiorespiratory problems. Primary endpoint is overall survival after two years; secondary endpoints are non-relapse mortality, median survival, patient reported outcomes including cancer related fatigue and quality of life, physical performance, body composition, haematological/immunological reconstitution, inflammatory parameters, severity of complications and side-effects (e.g. GvHD and infections), and cognitive capacity.

Discussion

The PETRA study will contribute to a better understanding of the physiological and psychological effects of exercise training and their biological mechanisms in cancer patients after allo-HCT. The ultimate goal is the implementation of optimized intervention programs to reduce side-effects and improve quality of life and potentially prognosis after allogeneic stem cell transplantation.

Trial registration

ClinicalTrials.gov Identifier: NCT01374399.

Low Socioeconomic Status, Adverse Gene Expression Profiles, and Clinical Outcomes in Hematopoietic Stem Cell Transplant Recipients

PURPOSE

Low socioeconomic status (SES) is associated with adverse outcomes among unrelated donor hematopoietic stem cell transplant (HCT) recipients, but the biologic mechanisms contributing to this health disparity are poorly understood. Therefore, we examined whether social environment affects expression of a stress-related gene expression profile known as the conserved transcriptional response to adversity (CTRA), which involves upregulation of proinflammatory genes and downregulation of genes involved in type I IFN response and antibody synthesis.

EXPERIMENTAL DESIGN

We compared pretransplant leukocyte CTRA gene expression between a group of 78 high versus low SES recipients of unrelated donor HCT for acute myelogenous leukemia in first remission. Post hoc exploratory analyses also evaluated whether CTRA gene expression was associated with poor clinical outcomes.

RESULTS

Peripheral blood mononuclear cells collected pre-HCT from low SES individuals demonstrated significant CTRA upregulation compared with matched HCT recipients of high SES. Promoter-based bioinformatics implicated distinct patterns of transcription factor activity, including increased CREB signaling and decreased IRF and GR signaling. High expression of the CTRA gene profile was also associated with increased relapse risk and decreased leukemia-free survival.

CONCLUSIONS

Low SES is associated with increased expression of the CTRA gene profile, and CTRA gene expression is associated with adverse HCT clinical outcomes. These findings provide a biologic framework within which to understand how social environmental conditions may influence immune function and clinical outcomes in allogeneic HCT.

Higher Stem Cell Dose Infusion after Intensive Chemotherapy Does Not Improve Symptom Burden in Older Patients with Multiple Myeloma and Amyloidosis

Autologous hematopoietic stem cell transplantation (ASCT) for multiple myeloma (MM) is associated with high symptom burden, particularly for older patients and those with amyloid light-chain (AL) amyloidosis. Symptom burden peaks during leukopenia. We hypothesized that higher doses of CD34(+) stem cells would be associated with an improved symptom outcome. Patients undergoing ASCT for MM who were ≥60 years old or had AL amyloidosis were randomized to receive either a standard (4 to 6 × 10(6) cells/kg) or high dose (10 to 15 × 10(6) cells/kg) of CD34(+) cells after melphalan 200 mg/m(2). Symptom burden was assessed via the MD Anderson Symptom Inventory MM module. Eighty patients were enrolled. Median CD34(+) cell doses were 5.1 × 10(6) cells/kg (standard dose) and 10.5 × 10(6) cells/kg (high dose). The most severe symptoms during the first week were fatigue, lack of appetite, drowsiness, disturbed sleep, and pain. The area under the curve for the mean composite severity score of these symptoms was similar between treatment arms (P = .819). Median times to neutrophil, lymphocyte, and platelet engraftment were also similar between groups. IL-6 increased similarly for both groups throughout the ASCT course. Infusion of higher autologous stem cell dose after high-dose chemotherapy does not yield a difference in symptom burden or engraftment time in the first few weeks after ASCT.

Symptom recovery after thoracic surgery: Measuring patient-reported outcomes with the MD Anderson Symptom Inventory

OBJECTIVES

Measuring patient-reported outcomes (PROs) has become increasingly important for assessing quality of care and guiding patient management. However, PROs have yet to be integrated with traditional clinical outcomes (such as length of hospital stay), to evaluate perioperative care. This study aimed to use longitudinal PRO assessments to define the postoperative symptom recovery trajectory in patients undergoing thoracic surgery for lung cancer.

METHODS

Newly diagnosed patients (N = 60) with stage I or II non-small cell lung cancer who underwent either standard open thoracotomy or video-assisted thoracoscopic surgery lobectomy reported multiple symptoms from before surgery to 3 months after surgery, using the MD Anderson Symptom Inventory. We conducted Kaplan-Meier analyses to determine when symptoms returned to presurgical levels and to mild-severity levels during recovery.

RESULTS

The most-severe postoperative symptoms were fatigue, pain, shortness of breath, disturbed sleep, and drowsiness. The median time to return to mild symptom severity for these 5 symptoms was shorter than the time to return to baseline severity, with fatigue taking longer. Recovery from pain occurred more quickly for patients who underwent lobectomy versus thoracotomy (8 vs 18 days, respectively; P = .022). Patients who had poor preoperative performance status or comorbidities reported higher postoperative pain (all P < .05).

CONCLUSIONS

Assessing symptoms from the patient's perspective throughout the postoperative recovery period is an effective strategy for evaluating perioperative care. This study demonstrates that the MD Anderson Symptom Inventory is a sensitive tool for detecting symptomatic recovery, with an expected relationship among surgery type, preoperative performance status, and comorbid conditions.

Circulating endocannabinoids during hematopoietic stem cell transplantation: A pilot study

Objective

Hematopoietic stem cell transplantation (HCT) is a stressful and rigorous medical procedure involving significant emotional and immune challenges. The endocannabinoid (eCB) signaling system is involved in regulation of both the immune system and emotional reactivity, yet little is known about its function during HCT. We investigated the role of the eCB signaling system in a group of HCT recipients.

Methods

A total of 19 HCT recipients were enrolled and provided psychosocial data and blood samples at three peri-transplant time points: prior to transplant, hospital discharge, and approximately 100 days post-transplant. Psychosocial factors, inflammatory molecules, and the eCBs were determined and assessed for changes over this period and association with each other.

Results

HCT recipients demonstrated significant changes over the peri-transplant period in inflammatory molecules and psychosocial functioning, but not in circulating concentrations of the eCBs. Associations among these variables were most likely to be present pre-transplant and least likely to be present immediately post-transplant, with depressive symptoms and inflammation most significantly associated. The eCB 2-arachidonoylglycerol (2-AG) was significantly, positively associated with both interleukin (IL)-6 and C-reactive protein (CRP) and negatively associated with depressive symptoms.

Conclusions

The eCB signaling system may have alternative sources and regulatory mechanisms in addition to the immune system. Given the significant associations with inflammatory molecules and depressive symptoms in the peri-transplant period, it is important to better understand this system and its potential implications in the setting of complex and stressful medical procedures such as HCT.

Racial/ethnic disparities in inflammatory gene single-nucleotide polymorphisms as predictors of a high risk for symptom burden in patients with multiple myeloma 1 year after diagnosis

BACKGROUND

This study was conducted to determine whether any regulatory single-nucleotide polymorphism (SNP) in an inflammatory gene was associated with a high symptom burden in patients 1 year after the diagnosis of multiple myeloma (MM).

METHODS

MM patients rated symptoms with the MD Anderson Symptom Inventory multiple myeloma module (MDASI-MM) and provided buccal-swab DNA samples. SNPs for 4 cytokine genes (interleukin 6 [IL6] -174G>C, IL1β -511C>T, tumor necrosis factor α [TNFα] -308G>A, and IL10 -1082G>A) were tested. Logistic regression models were used to identify SNPs that might predict moderate/severe symptoms (rated ≥ 4 on the MDASI-MM 0-10 scale). For the evaluation of the relationship between SNPs and overall symptom burden, a 2-step cluster analysis was used to divide patients into subgroups with high or low symptom levels.

RESULTS

Forty-one percent of the 344 patients enrolled had a high overall symptom burden. The most prevalent moderate/severe symptoms were fatigue (47%), pain (42%), numbness (38%), and bone aches (32%). For non-Hispanic whites, the IL1β -511 CC genotype was associated with a high overall symptom burden (odds ratio [OR], 2.35; 95% confidence interval [CI], 1.25-4.72; P = .004), whereas the IL6 -174 GG genotype predicted less moderate/severe fatigue (OR, 0.53; 95% CI, 0.29-0.88; P = .013). For other patients, the IL6 -174 GG genotype predicted moderate/severe pain (OR, 3.36; 95% CI, 1.23-13.64; P = .010).

CONCLUSIONS

These results support growing evidence showing that inflammation is associated with cancer-related symptoms, and they suggest that racial/ethnic factors contribute to this association.

Longitudinal analysis of patient-reported symptoms post-autologous stem cell transplant and their relationship to inflammation in patients with multiple myeloma

After autologous stem cell transplant (AuSCT), patients with multiple myeloma (MM) may receive lenalidomide maintenance therapy. This longitudinal study examined patient-reported symptom burden during the 3-9 months post-AuSCT and its association with maintenance therapy and circulating inflammatory markers. Fifty-one patients with MM rated symptom severity weekly using the MD Anderson Symptom Inventory MM module. When possible, blood for inflammatory marker assay was drawn at enrollment. Trajectory analysis identified clusters of patients who consistently reported higher or lower symptom severity. Although disease was relatively stable 3-9 months post-AuSCT, patients were not symptom-free: 35% were in the high-symptom group. Fatigue, pain, numbness/tingling, bone aches and muscle weakness were the most severe symptoms. Controlled for clinical variables, elevated baseline tumor necrosis factor-α (TNF-α) predicted high-symptom group membership (p = 0.014). Maintenance therapy and tumor response were not related to high symptom burden. Associations between inflammation and symptom burden in this exploratory study warrant further confirmatory study.

Cancer-related and treatment-related fatigue

Fatigue is a distressing and persistent symptom for patients with gynecological cancer and for survivors. Debilitating cancer-related fatigue (CRF) is produced by both the disease and its treatment. Although awareness and study of CRF have grown in recent years, consistent assessment has not been a priority in routine medical practice. The pathophysiological mechanisms that induce CRF remain unclear, and effective pharmacological interventions have yet to be established. Based on the literature and our own research results, this review focuses on recent progress toward understanding the nature and causes of CRF and on several promising treatment modalities. Given the prevalence and severity of CRF in the gynecological cancer patient population, establishing standardized fatigue measurement and management methods in routine clinical oncology care is of utmost importance. Whether CRF has an underlying inflammatory cause is still hypothetical, however, and no mechanism-driven symptom intervention is currently in clinical use, even though the development of such interventions would provide patients with greater symptom control. Advancing translational and clinical fatigue research will require anatomical pathway studies and well-designed clinical investigations that focus on the development of mechanism-driven interventions based on physiological-behavioral fatigue research, implementation of guidelines for experimental designs, and discovery of biomarkers identifying individuals at high risk for CRF. Validated patient-reported outcomes measures are an essential component of such clinical studies. Because numerous subscales, unidimensional measures, and multidimensional measures exist, clinicians and researchers should consider individual circumstances, good clinical practice, and research goals as guides for choosing the most appropriate fatigue measurement tool. Additionally, education about CRF should be made available to all patients and their caregivers, as accurate and age-appropriate information about conditions like CRF can alleviate much of the stress and anxiety brought on by poor communication about this distressing condition.

Symptom clusters in patients with advanced cancer: a systematic review of observational studies

CONTEXT

Advanced cancer patients typically experience multiple symptoms, which may influence patient outcomes synergistically. The composition of these symptom clusters (SCs) differs depending on various clinical variables and the timing and method of their assessment.

OBJECTIVES

The objective of this systematic review was to examine the composition, longitudinal stability, and consistency across methodologies of common SCs, as well as their common predictors and outcomes.

METHODS

A search of MEDLINE, CINAHL, Embase, Web of Science, and PsycINFO was conducted using variants of symptom clusters, cancer, and palliative care.

RESULTS

Thirty-three articles were identified and reviewed. Many SCs were identified, with four common groupings being anxiety-depression, nausea-vomiting, nausea-appetite loss, and fatigue-dyspnea-drowsiness-pain. SCs in most cases were not stable longitudinally. The various statistical methods used (most commonly principal component analysis, exploratory factor analysis, and hierarchical cluster analysis) tended to reveal different SCs. Different measurement tools were used in different studies, each containing a different array of symptoms. The predictors and outcomes of SCs were also inconsistent across studies. No studies of patient experiences of SCs were identified.

CONCLUSION

Although the articles reviewed revealed four groups of symptoms that tended to cluster, there is limited consistency in the way in which SCs and variables associated with them are identified. This is largely due to a lack of agreement about a robust, clinically relevant definition of SCs. Future research should focus on patients' subjective experience of SCs to inform a clinically relevant definition of SCs and how they are managed over time.

Sleep quality following hematopoietic stem cell transplantation: longitudinal trajectories and biobehavioral correlates

The present study examined changes in sleep quality following hematopoietic stem cell transplantation (HSCT) and investigated associations with biobehavioral factors. Individuals undergoing HSCT for hematologic malignancies (N=228) completed measures of sleep quality and psychological symptoms pre-transplant and 1, 3, 6, and 12 months post-transplant. Circulating inflammatory cytokines (IL-6, TNF-α) were also assessed. Sleep quality was poorest at one month post-transplant, improving and remaining relatively stable after 3 months post-transplant. However, approximately half of participants continued to experience significant sleep disturbance at 6 and 12 months post-transplant. Mixed-effects linear regression models indicated that depression and anxiety were associated with poorer sleep quality, while psychological well-being was associated with better sleep. Higher circulating levels of IL-6 were also linked with poorer sleep. Subject-level fixed effects models demonstrated that among individual participants, changes in depression, anxiety, and psychological well-being were associated with corresponding changes in sleep after covarying for the effects of time since transplant. Sleep disturbance was most severe when depression and anxiety were greatest, and psychological well-being was lowest. Findings indicate that sleep disturbance is a persistent problem during the year following HSCT. Patients experiencing depression or anxiety and those with elevated inflammation may be at particular risk for poor sleep.

Cancer-related fatigue--mechanisms, risk factors, and treatments

Fatigue is one of the most common adverse effects of cancer that might persist for years after treatment completion in otherwise healthy survivors. Cancer-related fatigue causes disruption in all aspects of quality of life and might be a risk factor of reduced survival. The prevalence and course of fatigue in patients with cancer have been well characterized and there is growing understanding of the underlying biological mechanisms. Inflammation seems to have a key role in fatigue before, during, and after cancer-treatment. However, there is a considerable variability in the presentation of cancer-related fatigue, much of which is not explained by disease-related or treatment-related characteristics, suggesting that host factors might be important in the development and persistence of this symptom. Indeed, longitudinal studies have identified genetic, biological, psychosocial, and behavioural risk factors associated with cancer-related fatigue. Although no current gold-standard treatment for fatigue is available, a variety of intervention approaches have shown beneficial effects in randomized controlled trials, including physical activity, psychosocial, mind-body, and pharmacological treatments. This Review describes the mechanisms, risk factors, and possible interventions for cancer-related fatigue, focusing on recent longitudinal studies and randomized trials that have targeted fatigued patients.

Selenium supplementation in patients undergoing hematopoietic stem cell transplantation: effects on pro-inflammatory cytokines levels

Background

Pro-inflammatory cytokines including tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β) and interleukin-6 (IL-6) play an important role in the development of hematopoietic stem cell transplantation (HSCT) complications. We explored the effect of Selenium as an antioxidant and anti-inflammatory agent on pro-inflammatory cytokines levels in HSCT candidates.

Findings

Plasma concentrations of TNF-α, IL-1β and IL-6 were measured in 74 patients from a double-blind, randomized, placebo-controlled study. In both groups, there were 37 patients with median age of 32 years. Patients received oral Se tablets (200 mcg) or placebo twice daily beginning from the first day of high dose chemotherapy (HDC) through 14 days after HSCT. Cytokine levels were determined before starting HDC (prior to first dose of Se), 7 and 14 days after HSCT. Plasma levels of TNF-α were not significantly different between Se and control group (P = 0.13). IL-1 levels were similar between two groups (P = 0.88). No significant differences were detected in IL-6 levels between Se and control group (P = 0.96).

Conclusion

Selenium had no effect on pro-inflammatory cytokines levels in patients undergoing HSCT. It is likely that earlier initiation and/or larger doses of Se are required to affect inflammatory cytokines significantly.

Inflammatory markers and development of symptom burden in patients with multiple myeloma during autologous stem cell transplantation

PURPOSE

Increasing research suggests that inflammation mediates symptom development. In this longitudinal study, we examined inflammatory factors related to the development of high symptom burden during autologous hematopoietic stem cell transplant (AuSCT) for multiple myeloma.

EXPERIMENTAL DESIGN

Patients (n = 63) repeatedly reported symptom severity on the MD Anderson Symptom Inventory multiple myeloma module (MDASI-MM) and contributed blood samples periodically for up to 100 days after AuSCT for inflammatory marker assays. The temporal associations between serum inflammatory marker concentrations and symptom severity outcomes were examined by nonlinear mixed-effect modeling.

RESULTS

Fatigue, pain, disturbed sleep, lack of appetite, and drowsiness were consistently the most severe MDASI-MM symptoms during the study. Peak symptom severity occurred on day 8 after AuSCT, during white blood cell count nadir. Patterns of serum interleukin (IL)-6 (peak on day 9) and soluble IL-6 receptor (sIL-6R; nadir on day 8) expression paralleled symptom development over time (both P < 0.0001). By univariate analysis, serum IL-6, sIL-6R, IL-10, C-reactive protein, macrophage inflammatory protein (MIP)-1α, sIL-1R2, sIL-1RA, and soluble tumor necrosis factor receptor 1 were significantly related to the most severe symptoms during the first 30 days after AuSCT (all P < 0.05). By multivariate analysis, IL-6 (estimate = 0.170; P = 0.004) and MIP-1α (estimate = -0.172; P = 0.006) were temporally associated with the severity of the component symptom score.

CONCLUSIONS

Systemic inflammatory response was associated with high symptom burden during the acute phase of AuSCT. Additional research is needed to understand how the inflammatory response is mechanistically associated with symptom expression and whether suppression of this response can reduce symptoms without compromising tumor control.

Measuring symptoms as a critical component of drug development and evaluation in hematological diseases

With the rapid development of new therapies for patients with hematological malignancies, there is an increasing need for patient report of symptom status during all phases of drug testing. The patient's perspective on new treatments reflects treatment tolerability as well as symptom benefit, and may assist patients and clinicians in choosing treatments. Inclusion of patient-reported outcomes, more common in solid-tumor than hematological trials, provides early information about symptoms to guide decisions about appropriate dosing and supportive care needs. We provide a historical overview of the use of patient-reported outcomes and symptom assessment in solid-tumor and hematological drug development, and offer recommendations about methodological issues in the monitoring of symptoms in the drug development process in hematological clinical trials.

Psychosocial factors and hematopoietic stem cell transplantation: potential biobehavioral pathways

While psychosocial factors are known to affect cancer progression via biobehavioral pathways in many patient populations, these relationships remain largely unexplored in hematopoietic stem cell transplant (HCT) patients. The purpose of this paper is to critically review the literature regarding psychosocial and endocrine/immune aspects of HCT, with an emphasis on exploring pathways that may mediate the associations between psychosocial factors and disease outcomes. These include the roles of catecholamines, glucocorticoids, inflammation, vascular endothelial growth factor (VEGF), immune reconstitution and infectious susceptibility, as well as the new opportunities available in genomics research. We also discuss the implications for potential immunomodulating psychosocial interventions. Elucidating the biological pathways that account for the associations between psychosocial factors and clinical course could ultimately lead to improved outcomes for this psychologically and immunologically vulnerable population.

Feasibility of frequent patient-reported outcome surveillance in patients undergoing hematopoietic cell transplantation

Patient-reported outcomes (PROs), including symptoms and health-related quality of life (HRQOL), provide a patient-centered description of hematopoietic cell transplantation (HCT)-related toxicity. These data characterize the patient experience after HCT and may have prognostic usefulness for long-term outcomes after HCT. We conducted a study of 32 patients after HCT (10 autologous HCT recipients, 11 full-intensity conditioning allogeneic HCT recipients, and 11 reduced-intensity conditioning allogeneic HCT recipients) to determine the feasibility of weekly electronic PRO collection from HCT until day (D) +100. We used questions from the PRO version of the Common Terminology Criteria for Adverse Events to capture symptoms, and the Patient-Reported Outcomes Measurement Information System Global Health scale to measure physical and mental HRQOL. The vast majority (94%) of patients used the electronic PRO system, with only 6% opting for paper-and-pencil only. The median weekly percentage of participants who completed the surveys was 100% in all cohorts through hospital discharge, and remained 100% for the autologous HCT and reduced-intensity allogeneic HCT cohorts through D+100. Patients were satisfied with the electronic system, giving high marks for readability, comfort, and questionnaire length. Symptom severity varied by absolute level and type of symptom across the 3 cohorts, with the full-intensity allogeneic HCT cohort exhibiting the greatest median overall symptom severity, peaking at D+7. Median physical health HRQOL scores decreased with time in the 3 cohorts, and HRQOL was generally correlated with overall symptom severity. Our results demonstrate the feasibility of frequent electronic PROs in the early post-HCT period. Future studies in larger populations to explore predictive models using frequent PRO data for outcomes, including long-term HRQOL and survival, are warranted.

Inflammation and cancer-related fatigue: mechanisms, contributing factors, and treatment implications

Fatigue is one of the most common and distressing side effects of cancer and its treatment, and may persist for years after treatment completion in otherwise healthy survivors. Guided by basic research on neuro-immune interactions, a growing body of research has examined the hypothesis that cancer-related fatigue is driven by activation of the pro-inflammatory cytokine network. In this review, we examine the current state of the evidence linking inflammation and cancer-related fatigue, drawing from recent human research and from experimental animal models probing effects of cancer and cancer treatment on inflammation and fatigue. In addition, we consider two key questions that are currently driving research in this area: what are the neural mechanisms of fatigue, and what are the biological and psychological factors that influence the onset and/or persistence of inflammation and fatigue in cancer patients and survivors? Identification of the mechanisms driving cancer-related fatigue and associated risk factors will facilitate the development of targeted interventions for vulnerable patients.

Biobehavioral influences on recovery following hematopoietic stem cell transplantation

Hematopoietic stem cell transplantation (HSCT) is a rigorous therapy that carries significant risk of morbidity and mortality to individuals with hematologic malignancies undergoing this treatment. While relationships between psychosocial factors, immune function, and clinical outcomes have been documented in other cancer populations, similar studies of cancer patients undergoing HSCT have not yet been conducted. The clinical significance of these relationships may be particularly salient in this population given the critical role of a timely immune recovery and optimal immune regulation in preventing infections, mitigating risk for graft-versus-host disease, and eliminating malignant cells, thereby reducing morbidity and mortality. Evidence for the potential role of biobehavioral processes following HSCT is reviewed, mechanisms by which psychosocial factors may influence immune processes relevant to post-transplant outcomes are discussed, and a framework to ground future psychoneuroimmunology (PNI) research in this area is provided. The review suggests that the recovery period following HSCT may provide a "window of opportunity" during which interventions targeting stress-related behavioral factors can influence the survival, health, and well-being of HSCT recipients.

A literature synthesis of symptom prevalence and severity in persons receiving active cancer treatment

PURPOSE

Patients with cancer experience acute and chronic symptoms caused by their underlying disease or by the treatment. While numerous studies have examined the impact of various treatments on symptoms experienced by cancer patients, there are inconsistencies regarding the symptoms measured and reported in treatment trials. This article presents a systematic review of the research literature of the prevalence and severity of symptoms in patients undergoing cancer treatment.

METHODS

A systematic search for studies of persons receiving active cancer treatment was performed with the search terms of "multiple symptoms" and "cancer" for studies involving patients over the age of 18 years and published in English during the years 2001 to 2011. Search outputs were reviewed independently by seven authors, resulting in the synthesis of 21 studies meeting criteria for generation of an Evidence Table reporting symptom prevalence and severity ratings.

RESULTS

Data were extracted from 21 multi-national studies to develop a pooled sample of 4,067 cancer patients in whom the prevalence and severity of individual symptoms was reported. In total, the pooled sample across the 21 studies was comprised of 62% female, with a mean age of 58 years (range 18 to 97 years). A majority (62%) of these studies assessed symptoms in homogeneous samples with respect to tumor site (predominantly breast and lung cancer), while 38% of the included studies utilized samples with mixed diagnoses and treatment regimens. Eighteen instruments and structured interviews were including those measuring single symptoms, multi-symptom inventories, and single symptom items drawn from HRQOL or health status measures. The MD Anderson Symptom Inventory was the most commonly used instrument in the studies analyzed (n = 9 studies; 43%), while the Functional Assessment of Cancer Therapy, Hospital Anxiety and Depression Subscale, Medical Outcomes Survey Short Form-36, and Symptom Distress Scale were each employed in two studies. Forty-seven symptoms were identified across the 21 studies which were then categorized into 17 logical groupings. Symptom prevalence and severity were calculated across the entire cohort and also based upon sample sizes in which the symptoms were measured providing the ability to rank symptoms.

CONCLUSIONS

Symptoms are prevalent and severe among patients with cancer. Therefore, any clinical study seeking to evaluate the impact of treatment on patients should consider including measurement of symptoms. This study demonstrates that a discrete set of symptoms is common across cancer types. This set may serve as the basis for defining a "core" set of symptoms to be recommended for elicitation across cancer clinical trials, particularly among patients with advanced disease.

Biomarkers: symptoms, survivorship, and quality of life

OBJECTIVES

To review the evidence on a number of biomarkers that show potential clinical utility in the prediction of and treatment responsiveness for the four most common symptoms associated with cancer and its treatment (ie, pain, fatigue, sleep disturbance, depression).

DATA SOURCES

Review and synthesis of review articles and data-based publications.

CONCLUSION

A growing body of evidence suggests that sensitive and specific biomarkers will be available to assist clinicians with the assessment and management of symptoms.

IMPLICATIONS FOR NURSING PRACTICE

Nurses will play a critical role in educating patients about their risk for specific symptoms based on an evaluation of specific biomarkers. Nurses will be involved in using biomarker data to titrate medications based on patient's responses to symptom management interventions.

Symptoms and quality of life in diverse patients undergoing hematopoietic stem cell transplantation

CONTEXT

Symptoms and quality of life (QOL) are critically important in hematopoietic stem cell transplantation (HSCT). However, few studies have examined these factors by transplant type among diverse cultures.

OBJECTIVES

To identify and compare QOL and symptom severity and prevalence by transplant type in a diverse population having HSCT.

METHODS

The M. D. Anderson Symptom Inventory Blood and Marrow Transplantation (MDASI-BMT) module measured symptom severity and its impact. The Functional Assessment of Cancer Therapy-Bone Marrow Transplant (FACT-BMT) measured QOL.

RESULTS

Symptom data were collected from 164 patients at eight points (pretransplant to 100 days post-transplant) and QOL data at four times. Over time, symptom severity was significantly correlated with QOL and patients who had allogeneic transplants with myeloablative regimens showed more severe sleep disturbance and poorer QOL than patients having autologous transplants. Male patients reported less fatigue than female patients. However, ethnicity was not significant. Patients whose functional status was good had fewer of the five worst symptoms and higher QOL than patients with a poor functional status. Patients with acute graft-versus-host disease had more severe symptoms than those who did not.

CONCLUSION

Type of transplant and preparative regimen are the most important aspects to consider when managing symptoms and QOL. This information is important for providing anticipatory guidance and support needed during the transplantation experience, to explore in future research the mechanisms involved in symptoms after HSCT, and to develop additional effective interventions.

Serum sTNF-R1, IL-6, and the development of fatigue in patients with gastrointestinal cancer undergoing chemoradiation therapy

Although evidence of inflammation and fatigue has been noted in cancer survivors, whether inflammation is linked to the expression of fatigue and other symptoms arising from concurrent chemoradiation therapy (CXRT) has not been well studied. Patients undergoing CXRT for locally advanced colorectal or esophageal cancer (n=103) reported multiple symptoms weekly via the M. D. Anderson Symptom Inventory (MDASI) from start of therapy. Serum samples were collected weekly to examine changes in inflammatory markers (interleukin (IL)-6, IL-8, IL-10, IL-1 receptor antagonist (IL-1RA), vascular endothelial growth factor (VEGF), and soluble receptor 1 for tumor necrosis factor (sTNF-R1)) via enzyme-linked immunosorbent assay. Relationships between symptom severity and inflammatory-marker concentration levels were estimated using mixed-effect regression analysis, controlled for week of therapy, age, sex, body mass index, pre-CXRT tumor stage, pre-CXRT chemotherapy, pre-CXRT statin use, and type of cancer. Fatigue was the most severe symptom over time, its development profile shared with pain, distress, drowsiness, poor appetite, and disturbed sleep. sTNF-R1 and IL-6 shared a similar pattern of symptom development, with significant increase during CXRT and decrease after completion of CXRT. Serum concentrations of sTNF-R1 were positively associated over time with the severity of fatigue (p=0.00097), while sTNF-R1 and IL-6 were positively related to the severity of a component score of the six most severe symptoms (both p<0.0001). This longitudinal study suggests a role for over-expressed sTNF-R1 and IL-6 in the development of fatigue and other severe sickness symptoms during CXRT in patients with colorectal or esophageal cancer.

Pretransplantation assessments and symptom profiles: predicting transplantation-related toxicity and improving patient-centered outcomes

With the advent of reduced-intensity conditioning regimens and improvements in supportive care, hematopoietic cell transplantation (HCT) has become increasingly available to older adults and medically vulnerable populations with hematologic diseases. However, adverse outcomes including long-term treatment-related distress, disability (frailty), and death remain important concerns in this population. In other areas of oncology, comprehensive geriatric assessments have been used to stratify patients for treatment-related risk, and patient-reported outcomes (PROs) have helped in understanding treatment-related toxicity from a patient perspective. However, these powerful tools have not yet become widely used in HCT. Here, we review the theories and available data that support the development of pretreatment functional assessments and longitudinal PRO sampling in HCT. We discuss the potential for these techniques to improve transplantation outcomes through risk stratification, interventional studies, and predictive models that incorporate genetic and biomarker data. Predicting and understanding long-term transplantation-related toxicity through functional assessments and PROs will be critical to calculating the risk/benefit ratio of aggressive therapies in older patient populations, and we contend that functional assessments and PRO sampling should become standard parts of the routine evaluation of HCT patients.