Physical, emotional and social pain communication by patients diagnosed and living with multiple myeloma

Total Pain and Fear of Recurrence in Post-Treatment Cancer Patients: Serial Mediation of Psychological Flexibility and Mentalization and Gender Moderation

Background: The research indicates that painful experiences can significantly affect the fear of cancer recurrence among cancer survivors, which is a distressing concern that influences both physiological and psychological recovery. This cross-sectional study aims to advance our comprehension of the associations between total pain and the fear of recurrence in post-treatment cancer patients by examining two potential mediators: psychological flexibility and mentalization. Methods: Three hundred and thirty-five participants (aged 22 to 88, 49.1% female) who had finished their cancer treatment completed self-report assessments of total pain, their fear of recurrence, psychological flexibility, and mentalization. Results: The serial mediation analysis showed that all dimensions of total pain were positively and indirectly related to the fear of recurrence through psychological flexibility and mentalization in serial. Additionally, gender was found to moderate these serial mediational effects. Conclusions: In line with the psychological flexibility model, personal capacities to face difficult internal/external problems and interpret one's behavior in motivational terms can counterbalance a patient's negative emotions and feelings related to the illness. Gender factors also determine the way in which post-treatment cancer patients manage potential future anxiety and fears.

Quality of life assessment of patients undergoing palliative chemotherapy

BACKGROUND

Palliative chemotherapy uses systemic antineoplastic agents to treat an incurable malignancy. The results of cancer treatment need to be measured in terms of what physical and psychological limitations it brings to the patient. Therefore, there is a need to evaluate and establish the impact of the disease and its treatment on the patient's quality of life.

OBJECTIVE

To evaluate the quality of life of cancer patients undergoing palliative antineoplastic chemotherapy.

METHOD

A cross-sectional study with quali-quantitative unfolding. Three research instruments were applied: sociodemographic and clinical data; European Organization for Research and Treatment of Cancer quality of life questionnaire (EORTC QLQ-C30); interview script with predefined open questions.

RESULTS

The quality of life of the participants was considered good. Fatigue and financial difficulty were the main factors that interfered in daily activities. Three analytical categories emerged from the content analysis of the interviews: communication between the health team and the patient; patient's perception of their health/disease; concerns vs prospects.

CONCLUSION

The evaluation of quality of life for people who are at the end of life needs to balance technological and therapeutic advances, alongside aspects such as the perspective of these patients and the context of their lives.

Metastatic Infiltration of Nervous Tissue and Periosteal Nerve Sprouting in Multiple Myeloma-Induced Bone Pain in Mice and Human

Multiple myeloma (MM) is a neoplasia of B plasma cells that often induces bone pain. However, the mechanisms underlying myeloma-induced bone pain (MIBP) are mostly unknown. Using a syngeneic MM mouse model, we show that periosteal nerve sprouting of calcitonin gene-related peptide (CGRP+) and growth associated protein 43 (GAP43+) fibers occurs concurrent to the onset of nociception and its blockade provides transient pain relief. MM patient samples also showed increased periosteal innervation. Mechanistically, we investigated MM induced gene expression changes in the dorsal root ganglia (DRG) innervating the MM-bearing bone of male mice and found alterations in pathways associated with cell cycle, immune response and neuronal signaling. The MM transcriptional signature was consistent with metastatic MM infiltration to the DRG, a never-before described feature of the disease that we further demonstrated histologically. In the DRG, MM cells caused loss of vascularization and neuronal injury, which may contribute to late-stage MIBP. Interestingly, the transcriptional signature of a MM patient was consistent with MM cell infiltration to the DRG. Overall, our results suggest that MM induces a plethora of peripheral nervous system alterations that may contribute to the failure of current analgesics and suggest neuroprotective drugs as appropriate strategies to treat early onset MIBP.SIGNIFICANCE STATEMENT Multiple myeloma (MM) is a painful bone marrow cancer that significantly impairs the quality of life of the patients. Analgesic therapies for myeloma-induced bone pain (MIBP) are limited and often ineffective, and the mechanisms of MIBP remain unknown. In this manuscript, we describe cancer-induced periosteal nerve sprouting in a mouse model of MIBP, where we also encounter metastasis to the dorsal root ganglia (DRG), a never-before described feature of the disease. Concomitant to myeloma infiltration, the lumbar DRGs presented blood vessel damage and transcriptional alterations, which may mediate MIBP. Explorative studies on human tissue support our preclinical findings. Understanding the mechanisms of MIBP is crucial to develop targeted analgesic with better efficacy and fewer side effects for this patient population.

Real-world patient-reported outcomes and concordance between patient and physician reporting of side effects across lines of therapy in multiple myeloma within the USA

PURPOSE

We aimed to explore patient-reported outcomes (PROs) and patient and physician concordance of side effects perception across lines of therapy (LOT) in multiple myeloma (MM) within the United States of America (USA).

METHODS

Data were drawn from the Adelphi Real World MM III Disease Specific Programme™, a point-in-time survey of hemato-oncologists/hematologists and their patients with MM conducted in the USA between August 2020 and July 2021. Physicians reported patient characteristics and side effects. Patients reported side-effect bother and health-related quality of life (HRQoL) using validated PRO tools (European Organisation for the Research and Treatment of Cancer Quality of Life Core Questionnaire/-MM Module [EORTC QLQ-C30/-MY20], EQ-5D-3L and Functional Assessment of Cancer Therapy-General Population physical item 5). Descriptive, linear regression and concordance analyses were performed.

RESULTS

Records from 63 physicians and 132 patients with MM were analyzed. EORTC QLQ-C30/-MY20 and EQ-5D-3L scores were consistent across LOTs. Scores tended to be worse with higher side-effect bother; patients "very much" bothered by side effects had lower median (interquartile range) global health status scores (33.3 [25.0-50.0]) than those "not at all" bothered (79.2 [66.7-83.3]). Patient and physician concordance on side-effect reporting was poor to fair. Patients frequently reported fatigue and nausea as bothersome side effects.

CONCLUSION

HRQoL of patients with MM was worse with greater side-effect bother. Discordant patient and physician reporting of side effects indicated a need for improved communication during management of MM.

Medication adherence with denosumab in patients with bone metastases from solid tumors treated in routine clinical settings: a retrospective study

PURPOSE

To describe (non)adherence with denosumab among patients with solid tumors and bone metastases.

METHODS

This retrospective, observational study pooled data from two completed prospective, multicenter cohort studies (X-TREME; Study 240) in adult patients with bone metastases from primary breast, prostate, lung, kidney, or other solid cancer types and administered denosumab 120 mg in routine clinical practice in Germany and Central and Eastern Europe. The studies were conducted between May 2012 and May 2017; pooled analysis was completed in August 2021. Medication adherence was described according to a three-component consensus taxonomy: initiation (first-ever administration ≤ 90 days from bone metastasis diagnosis), implementation (actual vs prescribed dosing; optimal implementation = regular/consistent dosing), and persistence (≤ 60-day gap between administrations at 3, 6, 9, and 12 months). Descriptive analyses were conducted for each cancer type.

RESULTS

The analysis included 1748 patients with solid tumors and bone metastases. Adherence with denosumab was generally high across the initiation, implementation, and persistence phases. Most patients experienced timely initiation (from 64.4% [kidney cancer] to 81.2% [breast cancer]) and optimal implementation (from 62.4% [lung cancer] to 72.5% [breast cancer]). The proportion of patients who were persistent with treatment at 6 months ranged from 41.4% (lung cancer) to 77.8% (prostate cancer).

CONCLUSIONS

This study revealed variations by cancer type in the initiation, implementation, and persistence of denosumab in patients with solid tumors and bone metastases in routine clinical practice. Further cancer-specific studies are warranted to examine the determinants of (non)adherence with denosumab, and potential ways to improve medication adherence.