Ethical conduct of palliative care research: enhancing communication between investigators and institutional review boards

Bicentre, randomized, parallel-arm, sham-controlled trial of transcranial direct-current stimulation (tDCS) in the treatment of palliative care patients with refractory cancer pain

BACKGROUND

Pain is a common symptom in palliative care cancer patients and is often insufficiently relieved. In recent years, transcranial direct-current stimulation (tDCS) of the motor cortex has been shown to be effective to treat chronic pain, essentially neuropathic pain. We propose to test the efficacy of tDCS in patients experiencing cancer pain in the palliative care setting.

METHOD/DESIGN

This article describes the protocol of a bicentre, randomized, parallel-arm, sham-controlled clinical trial evaluating tDCS in the treatment of palliative care patients with refractory cancer pain. Seventy patients between the ages of 18 and 80 years experiencing refractory pain with a pain score of 4/10 on a numerical rating scale (NRS) ranging from 0 to 10 will be enrolled in this trial. The main exclusion criteria are patients unable to fill in the various rating scales and life expectancy less than 3 weeks. Treatment consists of 5 consecutive tDCS sessions targeting the motor cortex (one daily session for 5 days) on the contralateral side to the pain. After randomization (1:1 ratio), 35 patients will receive active stimulation and 35 patients will receive sham stimulation. The primary endpoint is the NRS score and the primary objective is a significant improvement of this score between the baseline score recorded between D-3 and D-1 and the score recorded 4 days after stopping treatment (D8). The secondary objectives are to evaluate whether this improvement is maintained 16 days after stopping treatment (D21) and whether the following scores are improved on D14 and D21: Brief Pain Inventory, Edmonton Symptom Assessment System, Hospital Anxiety and Depression scale, State-Trait Anxiety Inventory and Medication Quantification Scale.

DISCUSSION

Positive results of this trial would indicate that tDCS can improve pain and quality of life of cancer patients in the palliative care setting. Reduction of analgesic consumption and improvement of activities of daily living should allow many patients to return home with a decreased workload for caregivers.

Feasibility, use and benefits of patient-reported outcome measures in palliative care units: a multicentre observational study

BACKGROUND

Research has shown that routinely assessed, patient-reported outcome measures (PROMs) have positive effects in patients with advanced oncologic diseases. However, the transferability of these results to specialist palliative care is uncertain because patients are more impaired and staff doubt the feasibility and benefits. The aim of this study is to evaluate the feasibility of patient self-assessment of PROMs, their use by staff and the benefits in palliative care wards.

METHOD

A multicentre observational study was conducted in the context of the implementation of the Integrated Patient Outcome Scale (IPOS) in three specialist palliative care wards at university hospitals in Germany. All admitted patients who screened positive regarding their ability to complete questionnaires were asked to participate and complete the IPOS on paper weekly, with assistance if necessary. Feasibility of questionnaire completion (e.g. proportion of patients able to complete them), use (e.g. involvement of different professional groups) and benefit (e.g. unexpected information in IPOS as rated by treating physicians) were assessed. Staff members' opinion was obtained in a written, anonymous evaluation survey, patients' opinion in a short written evaluation.

RESULTS

A total of 557 patients were screened for eligibility, 235 were assessed as able to complete the IPOS (42.2%) and 137 participated in the study (24.6%). A majority needed support in completing the IPOS; 40 staff members and 73 patients completed the evaluation. Unexpected information was marked by physicians in 95 of the 137 patient questionnaires (69.3%). The staff differed in their opinions on the question of whether this also improved treatment. A majority of 32 staff members (80.0%) were in favour of continuing the use of IPOS (4 against continuation, 4 no answer); 43 (58.9%) patients rated their overall experience of IPOS use as 'positive', 29 (39.7%) as 'neutral' and 1 (1.4%) as 'negative'.

CONCLUSIONS

While most staff wished to continue using IPOS, it was a challenge to integrate the effort to support the completion of IPOS into daily practice. Digital implementation was not successful, despite various attempts. To explore the effects on care and patient outcomes, multicentre cluster-randomised trials could be employed.

TRIAL REGISTRATION

German Clinical Trials Register DRKS-ID: DRKS00016681 (24/04/2019).

Association between the Development of Hospice and Palliative Care and Government-Funded Research Priority: Taiwan-Based Example

In recent years, hospice and palliative care (HPC) has grown, developed, and changed in response to the humanistic and social needs for supporting those with incurable illnesses. As a relatively new discipline, research is needed in HPC, and the priority setting of research is essential to help direct finite resources to support research. To promote creative research in different fields including HPC, the Taiwan government subsidized institutions to conduct research. In this study, we obtained data from the Government Research Bulletin, an open-source online system containing complete information about government subsidized studies since 1993 to investigate the development of research priority in HPC in Taiwan. In total, 552 studies were recorded during 1993–2021, with a continued upward trend. An association was found between research priority and the promulgation of new HPC regulations. The type of diseases in research extended from cancer to all advanced chronic conditions. The increased diversity in out-of-hospital settings of palliative research was also observed. Numerous studies have focused on education, and the theme gradually shifted from “training and education for healthcare professionals” to “public education”. Here, the results may serve as a basis to understand the commonalities of research and enhance dialog in HPC research.

Reflections on Including Patients in a Randomized Placebo-Controlled Multicentre Trial in the Dying Phase - the SILENCE Study

A need exists for studies investigating symptom relief at the end of life. Randomised controlled trials (RCTs) are the gold standard for demonstrating efficacy of medication, but they are difficult to perform at the end of life due to barriers such as the vulnerability of patients, and gatekeeping by healthcare professionals. We analyzed and reflected on recruitment, participation, and strategies used in an RCT at the end of life. The SILENCE study, performed in six inpatient hospice facilities, was a placebo-controlled trial to study the effect of ScopolamIne butyLbromidE giveN prophylactiCally for dEath rattle in dying patients. We addressed patients' vulnerability by using an advance consent procedure, and potential gatekeeping by extensive training of health care professionals and the appointment of hospice doctors as daily responsible researchers. In almost three years, 1097 patients were admitted of whom 626 were eligible at first assessment. Of these, 119 (19%) dropped out because of physical deterioration before they could be informed about the study (44) or sign informed consent (75). Twenty-five (4%) patients were not asked to participate. In 24 cases (4%), relatives advised against the patient participating. Overall, 229 patients (37%) gave informed consent to participate. The vulnerability of patients was the most important barrier in this medication study at the end of life. Gatekeeping by HCPs and relatives occurred in a small number of patients. The robust design and applied strategies to facilitate patient recruitment in this study resulted in a successful study with sufficient participants.

When Should Neuroendovascular Care for Patients With Acute Stroke Be Palliative?

Noncurative surgeries intended to relieve suffering during serious illness or near end of life have been analyzed across palliative settings. Yet sparse guidance is available to inform clinical management decisions about whether, when, and which interventions should be offered when ischemic stroke and other neurological complications occur in patients whose survival is extended by other novel disease-modifying interventions. This case commentary examines key ethical and clinical considerations in palliative neuroendovascular care of patients with acute stroke.

Should end-of-life patients be enrolled as participants in clinical research? A best-fit framework synthesis

AIM

To identify and appraise evidence about ethical concerns regarding conducting medical research with end-of-life patients.

DESIGN

A best-fit framework synthesis of the literature regarding ethical issues in research involving adult patients at the end of life was conducted.

DATA SOURCES

Five databases were searched (Cumulative Index to Nursing and Allied Health Literature, Web of Science, Embase, MEDLINE, and PsychINFO) between January 2000-August 2019.

REVIEW METHODS

Data were synthesized and categorized according to the moral positions described by Foster.

RESULTS

In all, 18 papers that met the inclusion criteria were included in this review. These papers provided rich knowledge not only about various ethical objections to researching the end of life but also about the social, moral, and clinical requirements to perform rigorous studies on clinical interventions in this field.

CONCLUSIONS

Research on people at end of life is not an unsolvable ethical dilemma between providing the best possible care and enhancing new therapies. It is important to find a balance between the moral duties of providing care and achieving research outcomes that are rigorous and meaningful for service users.

IMPACT

Research ethics committees can be challenged by the evaluation of human research. This review provides up-to-date evidence on key challenges and ethical considerations about researching with end-of-life patients.

SUMMARY STATEMENT

This study is a review of relevant evidence and key ethical challenges and issues around palliative and end-of-life research. Our findings provided important recommendations for clinicians, research, and ethics committee members when evaluating clinical research with people at their end of life.

Clinical research in cancer palliative care: a metaresearch analysis

OBJECTIVE

This metaresearch of the clinicaltrials.gov database aims to evaluate how clinical research on palliative care is conducted within the setting of advanced cancer.

METHODS

Clinicaltrials.gov was searched to identify registered studies recruiting patients with cancer, and investigating issues relevant to palliative care. The European Organisation for Research and Treatment of Cancer QLQ-C15-PAL (Quality of Life in palliative cancer care patients) questionnaire was taken into account to define the research domains of interest. Studies investigating cancer-directed therapy, management of cancer treatment-related adverse events and diagnostic tests were excluded. Publication status was crosschecked using PubMed.

RESULTS

Of 3950 identified studies, 514 were included. The most frequent reason for exclusion was cancer-directed therapy (2491). In 2007-2012, 161 studies were registered versus 245 in 2013-2018. Included studies were interventional (84%) or observational (16%). Most studies were monocentric (60%), sponsored by academia (79%), and conducted in North America (57%) or Europe (25%). Seventy-nine per cent of studies evaluated a heterogeneous population (>1 tumour type). Interventional studies most frequently investigated systemic drugs (34%), behavioural interventions (29%) and procedures for pain (24%). Pain, quality of life and physical function were the most frequently studied research domains (188, 95 and 52 studies, respectively). The most applied primary outcome measures were efficacy/symptom control (61%), quality of life (14%) and feasibility (12%). Only 16% of the closed studies had published results in PubMed.

CONCLUSIONS

Our study describes the heterogeneous landscape of studies conducted to address the issues of patients with advanced cancer in palliative care. Albeit the observed increase in the number of studies over the last decade, the generalisation of the results brought by the existing trials is limited due to methodological issues and lack of reporting. A greater effort is needed to improve clinical research that supports evidence-based palliative cancer care.

The Relationship of Post-traumatic Stress Disorder to End-of-life Care Received by Dying Veterans: a Secondary Data Analysis

BACKGROUND

Post-traumatic stress disorder (PTSD) can be exacerbated by subsequent trauma, but it is unclear if symptoms are worsened by impending death. PTSD symptoms, including hyperarousal, negative mood and thoughts, and traumatic re-experiencing, can impact end-of-life symptoms, including pain, mood, and poor sleep. Thus, increased symptoms may lead to increased end-of-life healthcare utilization.

OBJECTIVES

To determine if veterans with PTSD have increased end-of-life healthcare utilization or medication use and to examine predictors of medication administration.

DESIGN

Secondary analysis of a stepped-wedge design implementation trial to improve end-of-life care for Veterans Affairs (VA) inpatients. Outcome variables were collected via direct chart review. Analyses included hierarchical, generalized estimating equation models, clustered by medical center.

SUBJECTS

Veterans, inpatient at one of six VA facilities, dying between 2005 and 2011.

MAIN MEASURES

Emergency room (ER) visits, hospitalizations, and medication administration in the last 7 days of life.

KEY RESULTS

Of 5341 veterans, 468 (8.76%) had PTSD. Of those, 21.4% (100/468) had major depression and 36.5% (171/468) had anxiety. Veterans with PTSD were younger (mean age 65.4 PTSD, 70.5 no PTSD, p < 0.0001) and had more VA hospitalizations and ER visits in the last 12 months of life (admissions: PTSD 2.8, no PTSD 2.4, p < 0.0001; ER visits: 3.2 vs 2.5, p < 0.0001). PTSD was associated with antipsychotic administration (OR 1.52, 95% CI 1.06-2.18). Major depression (333/5341, 6.2%) was associated with opioid administration (OR 1.348, 95% CI 1.129-1.609) and benzodiazepines (OR 1.489, 95% CI 1.141-1.943). Anxiety disorders (778/5341, 14.6%) were only associated with benzodiazepines (OR 1.598, 95% CI 1.194-2.138).

CONCLUSIONS

PTSD's association with increased end-of-life healthcare utilization and increased antipsychotic administration in the final days of life suggests increased symptom burden and potential for terminal delirium in individuals with PTSD. Understanding the burden of psychiatric illness and potential risks for delirium may facilitate the end-of-life care for these patients.

TRIAL REGISTRATION

NCT00234286.

Methodological challenges in conducting instrumentation research in non-communicative palliative care patients

Well-designed, rigorously implemented instrumentation studies are essential to develop valid, reliable pain assessment tools in non-communicative (non-self-reporting) palliative care patients. When conducting a pain instrumentation study, a research team identified methodologic challenges surrounding informed consent, eligibility criteria, acute pain operational definitions, patient recruitment, missing data, and study-related training during a run-in phase at the beginning of the project and during the conduct of the study. The team dealt with these challenges through identifying root causes, implementing remedial measures, and collecting data to demonstrate improvement or resolution. Effective strategies included obtaining Institutional Review Board (IRB) approval for a waiver of informed consent, modifying eligibility criteria, ensuring that operational definitions and study procedures were consistent with clinical practice, decreasing time from screening to data collection to improve recruitment, increasing study nurse staffing by re-budgeting grant funds, focusing time and resources on high accruing clinical units, revising processes to minimize missing data, and developing detailed training for users of the instrument. With these multi-pronged solutions, the team exceeded the patient accrual target by 25% within the funding period and reduced missing data. While pain instrumentation studies in non-communicative patients have similar challenges to other palliative care studies, some of the solutions may be unique and several are applicable to other palliative care studies, particularly instrumentation research. The team's experience may also be useful for funders and IRBs.

Findings From a Thematic Synthesis of Key Messages From a Palliative Care Research Network: The KINDLE Project

BACKGROUND

Effective palliative care requires a strong evidence base to advance clinical practice and policy-making. Calls for more collaborative and strategic approaches to research have resulted in the development of research networks at national and wider regional levels.

AIM

The aim was to synthesize the learning arising from the activities of the Palliative Care Research Network from the island of Ireland, in order to identify the overarching messages from these activities. The ultimate aim is to promote the communication of these messages to practice.

DESIGN

The study developed a systematic search process influenced by Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines, with analysis of data adopting a qualitative critical interpretative synthesis approach using thematic synthesis.

PARTICIPANTS

In total, 142 dissemination products were sourced from 22 associated projects, including peer-reviewed publications, conference presentations, reports, and web/social media posts.

RESULTS

The synthesis of dissemination products identified 4 key themes relating to palliative care research and practice: (1) addressing the needs of patients while recognizing the caregiver role, (2) equal access to connected services, (3) general and specific needs in palliative care research, and (4) challenges in palliative care research.

CONCLUSIONS

The key themes identified relate to challenges in both practice and research, highlighting the complexity of palliative care provision that aims to support both patients and carers, and research in this area. However, an important implication is the need for a broader approach to dissemination (beyond traditional academic activities) to ensure that research in palliative care is well placed to inform both practice and policy.

Dying persons' perspectives on, or experiences of, participating in research: An integrative review

BACKGROUND

Conducting research with dying persons can be controversial and challenging due to concerns for the vulnerability of the dying and the potential burden on those who participate with the possibility of little benefit.

AIM

To conduct an integrative review to answer the question 'What are dying persons' perspectives or experiences of participating in research?

DESIGN

A structured integrative review of the empirical literature was undertaken.

DATA SOURCES

Cumulative Index Nursing and Allied Health Complete, PsycINFO, MEDLINE, Informit and Embase databases were searched for the empirical literature published since inception of the databases until February 2017.

RESULTS

From 2369 references, 10 papers were included in the review. Six were qualitative studies, and the remaining four were quantitative. Analysis revealed four themes: value of research, desire to help, expression of self and participation preferences. Dying persons value research participation, regarding their contribution as important, particularly if it provides an opportunity to help others. Participants perceived that the potential benefits of research can and should be measured in ways other than life prolongation or cure. Willingness to participate is influenced by study type or feature and degree of inconvenience.

CONCLUSION

Understanding dying persons' perspectives of research participation will enhance future care of dying persons. It is essential that researchers do not exclude dying persons from clinically relevant research due to their prognosis, fear or burden or perceived vulnerability. The dying should be afforded the opportunity to participate in research with the knowledge it may contribute to science and understanding and improve the care and treatment of others.

Reality of evidence-based practice in palliative care

There has been a paradigm shift in medicine away from tradition, anecdote and theoretical reasoning from the basic sciences towards evidence-based medicine (EBM). In palliative care however, statistically significant benefits may be marginal and may not be related to clinical meaningfulness. The typical treatment vs. placebo comparison necessitated by ‘gold standard’ randomised controlled trials (RCTs) is not necessarily applicable. The complex multimorbidity of end of life care involves considerations of the patient’s physical, psychological, social and spiritual needs. In addition, the field of palliative care covers a heterogeneous group of chronic and incurable diseases no longer limited to cancer. Adequate sample sizes can be difficult to achieve, reducing the power of studies and high attrition rates can result in inadequate follow up periods. This review uses examples of the management of cancer-related fatigue and death rattle (noisy breathing) to demonstrate the current state of EBM in palliative care. The future of EBM in palliative care needs to be as diverse as the patients who ultimately derive benefit. Non-RCT methodologies of equivalent quality, validity and size conducted by collaborative research networks using a ‘mixed methods approach’ are likely to pose the correct clinical questions and derive evidence-based yet clinically relevant outcomes.