At-home Chemotherapy Infusion for Patients with Advanced Cancer in Hong Kong


At-home Chemotherapy Infusion for Patients with Advanced Cancer in Hong Kong
SSS Mak1, PE Hui1, WMR Wan1, CLP Yih2
1 Department of Clinical Oncology, Prince of Wales Hospital, New Territories East Cluster, Shatin, Hong Kong
2 Department of Surgery, Prince of Wales Hospital, New Territories East Cluster, Shatin, Hong Kong
Correspondence: Dr Ms SSS Mak, Department of Clinical Oncology, Prince of Wales Hospital, New Territories East Cluster, Shatin, Hong Kong. Email:
Submitted: 14 Dec 2019; Accepted: 25 Mar 2020.
Contributors: All authors designed the study. SSSM acquired the data. All authors analysed the data analysis, drafted the manuscript, and critically revised the manuscript for intellectual content. All authors had full access to the data, contributed to the study, approved the final version for publication, and take responsibility for its accuracy and integrity.
Conflicts of Interest: All authors have disclosed no conflicts of interest.
Acjknowledgement: This article is based on a presentation given at the 8th Joint Scientific Meeting of The Royal College of Radiologists & Hong Kong College of Radiologists and 27th Annual Scientific Meeting of Hong Kong College of Radiologists 2019, held in Hong Kong, China.
Funding/Support: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
This article reviews the development of home-based chemotherapy for patients with advanced cancer in Hong Kong, highlighting the evolution of chemotherapy infusion devices, practice, and service provision over the past decades. Further, we provide directions regarding service provision, practice, and training. At-home delivery of chemotherapy infusions has been used in the treatment of advanced colorectal and pancreatic cancers. It received positive feedback from patients and had a positive impact on the healthcare system. The model for at-home chemotherapy infusion could be further promoted and developed in patients with advanced cancer through several means. These could include exploring the feasibility of more ambulatory home chemotherapy treatment; developing protocols and selection criteria to guide who should be treated where, how to manage drug toxicity and the expected side-effects, and assessment of the self-care capabilities of patient and family; and establishing logistics through multidisciplinary collaboration, chemotherapy nursing clinics, and development of expertise to more efficiently provide resources and staffing to support at-home chemotherapy infusion. Recognising these challenges, in the future, it would be helpful to identify new and more advanced practice foci and training initiatives to meet the increased needs of the rising service load and the population’s need for ongoing access to chemotherapy service.
Key Words: Catheterization, central venous; Chemotherapy, adjuvant / methods; Home infusion therapy; Infusion pumps; Nurses
Historically, infusional chemotherapy for patients with cancer has been delivered in hospitals. Over the past two decades, chemotherapy practice in Hong Kong has undergone a shift from inpatient to outpatient chemotherapy, including delivery of home chemotherapy. This shift has been partly driven by the increasing incidence of cancer, with new cases hitting a record high of 33 075 in 2017[1] and is projected to increase by around 35% to more than 42 000 new cases per annum by 2030.[2] Inpatient chemotherapy treatment may be required for intensive, complex chemotherapy regimens that can induce severe complications. Such complications can include bone marrow failure, prolonged neutropenia, renal toxicity, and tumour lysis syndrome in bulky tumours. Inpatient treatment may also be required for unstable disease that imminently requires chemotherapy or in situations that require hospitalisation for rigorous monitoring and intervention. However, most other chemotherapy treatments are implemented on an outpatient basis, and the proportion of outpatient treatment is increasing rapidly over time. This has resulted in an overwhelming demand for oncology services and hospital beds.
As oncology centres across some clusters are already delivering chemotherapy services at full capacity, the increasing demand for services is straining the Hospital Authority’s service capacity. Future demand for services is likely to increase further; improving access to anticancer drugs, improving cancer survival, and an ageing population are likely to be the key factors causing this increase. For hospitals without the resources to appropriately expand their capacity in terms of either staffing levels or physical space, it is likely that future patients will face longer waiting lists or reduced service. Reducing the use of both inpatient beds and ambulatory day beds for long infusions may help to create capacity and enhance the cost-effectiveness of the health system.[3] [4]
Home infusion of certain medications such as chemotherapy,[5] opioids,[6] and antibiotics[7] [8] is becoming a widely used alternative to in-hospital treatment. Especially in patients with advanced cancer who tend to be physically fit but receive prolonged chemotherapy, home chemotherapy provides an opportunity to receive treatment in the comfort of their homes and the feasibility to interact much more freely with relatives.
Despite its early use in a few local settings, the development of home chemotherapy infusion is still limited. The 27th Annual Scientific Meeting of Hong Kong College of Radiologists 2019 warranted a review of home-based chemotherapy for patients with advanced cancer in Hong Kong. The focus of this article is the evolution of chemotherapy infusion devices, practice, and service provision in Hong Kong. We aim to present a picture of the developments in the field and provide directions for future service provision, practice, and training.
There are two commonly cited definitions of ‘chemotherapy at home’. One refers to any type of administration of chemotherapeutic agents at home (eg, intravenous, subcutaneous, oral), with or without on-site supervision by a nurse.[9] The other definition refers to a service package of chemotherapy-related care provided by specialist healthcare professionals (usually nurses) at the patient’s home.[10]
Home chemotherapy can be further categorised as totally at-home or partially at-home service. For totally at-home service, the entire process is carried out in the home setting, for example, short-term infusions delivered at home by a nurse or injections delivered by parents to a child with cancer. For partially at-home service, the first chemotherapy infusion is given in the hospital or clinic, and later courses or cycles are completed at home and/or when some hospital or clinic visits are still required to initiate chemotherapy and disconnect the infusion pump.
The partially at-home service model is more applicable for home chemotherapy infusion in Hong Kong because of the city’s geographical size and the fact that no nurses currently administer chemotherapy at patients’ homes. An example of partially at-home service is multi-day continuous infusion started by a nurse at the hospital, continued without the nurse’s presence at home, and finished with disconnection of the pump at the hospital, which is the common practice of oncology centres in Hong Kong.
The partially at-home service model is more applicable for home chemotherapy infusion in Hong Kong because of the city’s geographical size and the fact that no nurses currently administer chemotherapy at patients’ homes. An example of partially at-home service is multi-day continuous infusion started by a nurse at the hospital, continued without the nurse’s presence at home, and finished with disconnection of the pump at the hospital, which is the common practice of oncology centres in Hong Kong.
A recent review[5] supported the provision of home-based chemotherapy as a safe and patient-centred alternative to hospital and outpatient-based service. Even though home-based chemotherapy has been proven feasible, and is facilitated by means of policies in a few countries, consensus on the best and most cost effective way of its administration is still lacking.[11] [12] [13] [14] [5] Administration of chemotherapy in the home setting varies across different regions of the country, and there is no standard model that suits all situations. Successful services are tailored to match local requirements and available resources.
Early Experience
Implantable long-term venous, epidural, or intrathecal catheters and electronic ambulatory pumps with injection ports either totally implanted or tunnelled under the skin to convenient sites, are commercially available. Thus, at-home infusion of various medications such as chemotherapy agents or spinal morphine[6] for patients with cancer has become feasible. In the 1990s, individual oncology centres used these devices for continuous infusion of chemotherapeutic agents via the portal vein for treatment of colorectal cancer with liver metastases and for intravenous infusion of the VAD combination chemotherapy regimen (vincristine, doxorubicin, dexamethasone) in the treatment of multiple myeloma.
As experience accumulated, the technique was piloted in Prince of Wales Hospital in 2005 for adjuvant treatment with a 5-fluorouracil (5FU)–based long-infusion regimen. A cohort study[16] in 102 patients with colorectal cancer demonstrated considerable quality-of-life benefits with ambulatory home infusion via an electronic pump as compared with inpatient infusion of chemotherapy. That study also observed reduced treatment delays due to the lack of inpatient beds, giving cancer patients the option of receiving chemotherapy at home in Hong Kong.
Promising Benefits and Impact of Current Service
The use of implantable venous ports and portable infusion devices in home chemotherapy has become part of the standard treatment with 5FU-based regimens for various types of cancer, including colorectal and pancreatic cancer. These include combination chemotherapy regimens, such as FOLFOX (folinic acid, 5FU, oxaliplatin) or FOLFIRI (folinic acid, 5FU, irinotecan), with or without anti–epidermal growth factor receptor antibodies such as cetuximab, or panitumumab, or vascular endothelial growth factor A inhibitor such as bevacizumab.
Both inpatient and outpatient bed days can be saved by modifying the drug delivery of FOLFOX/FOLFIRI to occur in the outpatient setting. The 3-hour infusion of oxaliplatin/irinotecan±cetuximab and 5FU+folinic acid can be administered in a day centre, followed by a 46-to- 48-hour infusion of 5FU at home using an ambulatory pump. This obviates the need for hospitalisation and reducing bed occupancy in day centres, which could help to reduce hospital workload and related costs.[3] The number of saved inpatient bed days is at least 2 days per cycle of FOLFOX/FOLFIRI. This could make a large impact given the accumulating numbers of patients requiring this treatment. Increasing day chemotherapy attendance for home chemotherapy infusion has been demonstrated with the implementation of the ambulatory home chemotherapy programme at an oncology centre.[17] Reduced inpatient and outpatient bed occupancy enables hospital beds to be reallocated to patients with a greater need for inpatient care, such as those requiring more intensive care, palliative care, or chemotherapy treatments not indicated for home infusion.
Home chemotherapy has been increasingly employed in oncology centres that have been able to establish adequate logistics and technical support, and staff training. A study conducted between 2017 and 2019 involving 24 cancer patients at Pamela Youde Nethersole Eastern Hospital[18] described the authors’ experience with home ambulatory chemotherapy using elastomeric infusion pumps. They concluded that home ambulatory chemotherapy is safe and effective, that patients enjoy high levels of satisfaction during treatment, and that such a valuable service should be promoted more liberally in hospitals to improve the quality of patient service.
Home Chemotherapy Infusion for Advanced Cancers
Chemotherapy remains the mainstay treatment for patients with advanced malignancy in developed countries. Patients with advanced cancer survive longer, have more treatment options, and adhere to treatment much longer on new generations of chemotherapy, targeted therapy, and immunotherapy than they did before. Home-based oncological care is generally reserved for end-of-life patients in Hong Kong. Because management of chemotherapy-related side-effects has improved and new, safe treatment schedules and administration tools have been introduced, home-based chemotherapy is becoming a valid alternative to hospital-based treatment for patients with advanced cancers.
Additionally, with hospitalisation, patients tend to participate less in their own care and are less ambulant because of the lack of spacing, thus disrupting the patients’ normal daily hygiene and exercise routine. Patients with advanced cancer, who are at particularly high risk for nosocomial infections[19] and thromboembolism,[20] tend to benefit tremendously from home-based chemotherapy, as those conditions are likely to be exacerbated by hospitalisation. In addition, many patients prefer to spend time with their families rather than in hospitals.
In 2018, a survey of 22 patients with metastatic colorectal or pancreatic cancers receiving 5FU-based home infusion revealed a high level of satisfaction in the patient group.[17] Two of the patients encountered minor equipment troubles during one treatment cycle, which were solved before they left the hospital. None experienced adverse events during chemotherapy infusion at home. Moreover, advantages expressed by the patients and their caregivers included the ability to continue many daily activities and to participate in their own care, giving them a greater sense of control over their treatment.
Multidisciplinary Collaboration
The outpatient and home settings are not necessarily panaceas for cost savings and efficiency because of the growing number of toxic treatments and complex interventions. The emphasis must be on high-quality multidisciplinary collaboration, especially in high-volume centres.
Multidisciplinary collaboration is crucial for the provision of ambulatory home chemotherapy to patients. Smooth service delivery requires the establishment of protocols and guidelines that provide a well-structured mechanism with clearly defined workflow involving oncologists, vascular surgeons, nurses and pharmacists, together with good communication among team members.
The most common problems during chemotherapy delivered via peripheral cannulation are thrombophlebitis and pain. Reliable central venous access is crucial for patients who need continuous infusion of chemotherapy at home. To facilitate home chemotherapy, implantation of a central venous catheter is needed to allow concentrated drugs to directly enter a central vein and become rapidly diluted by blood. This protects the peripheral blood vessel walls from drug irritation, solving the problems of drug extravasation and pain. Support from other teams such as vascular surgery or interventional radiology for placement of central venous access devices (CVADs) is crucial for this service.
Portable Infusion Devices
There are two types of portable infusion devices: programmable infusion pumps (electronic) and elastomeric infusion pumps (non-electronic) [Figure 1].
Figure 1. Portable infusion devices used in ambulatory home chemotherapy: (a) programmable ambulatory pump, (b) elastomeric infusion pump.
Electronic pumps usually operate via peristaltic mechanisms that propel the infusion forward via appendages that move in waves. Decimal rate values are programmed into the pump to provide either intermittent or continuous infusions, imparting additional flexibility to the delivery of various medications and chemotherapy regimens to treat many diseases and conditions, from haematological malignancy to chronic pain. These pumps usually contain audible and visual alarms to alert users about errors such as occlusion, low battery status, and pump malfunction. The programming of these pumps is considered to be one of the procedure’s risks because of the potential for user error. In addition, electronic pumps are often sensitive to radiation exposure and can result in pump malfunction for patients on concurrent chemoirradiation therapy.[21]
Elastomeric pumps have no buttons for programming and rely on an elastomeric membrane to generate pressure that moves the fluid out of the membrane. The single rate of infusion is controlled by an inline orifice or flow restrictor. These pumps have benefits over the electronic ones, such as minimised risks related to pump programming, lack of noise, lightweight design, and simplified use. However, the lack of an alarm system can be risky. Besides, the accuracy of the infusion time can fluctuate greatly because of factors like temperature and viscosity: one study[22] showed that 40% of elastomeric pumps had excess solution left upon disconnection.
Neither type of pump is absolutely free of risk nor universally fit across different regimens. Important factors for the decision of pump type include the complexity of chemotherapy, patients’ pump troubleshooting ability, and the pump’s weight, availability, and cost.
Chemotherapy Nurse Training and Practice Review
Chemotherapy nurses[23] are usually the staff members who assess and ensure venous access and deliver chemotherapy to patients. Appropriate pretreatment assessment, patient education, and infusion monitoring are critical to patients on chemotherapy. Their duties include handling the portable infusion device, manipulating the CVAD, troubleshooting, emergency management, and the removal of chemotherapy materials. Although chemotherapy nurses handle the bulk of patient care, they also need to ensure that patients always adhere to care and safety policies. To ensure the smooth operation of the ambulatory home chemotherapy service, the relevant extra training, audits, practice review, and updates on related issues are indispensable.
Patient and Caregiver Counselling and Education
Chemotherapy nurses are not typically present at the patient’s home throughout the infusion. To enable patients and their caregivers to better cope with home chemotherapy administration, assessment and counselling are provided at the chemotherapy nurse clinic. Topics include management of treatment-induced side-effects and symptoms, at-home care of the implanted CVAD and ambulatory infusion device, simple troubleshooting, and management of emergencies such as drug spillage or disconnection of the tubes. The nurses also provide patients with a list of ‘do’s and don’ts’ to follow while on home chemotherapy.
The major concern raised by patients and their caregivers has been the availability of support and consultation to help them when they encounter problems during at-home chemotherapy administration. Patients and caregivers should be educated about when to call, the total dose they are receiving, how long the infusion should last, the need to occasionally check the remaining drug volume in the pump, how to protect their devices while showering, and where to position the pump and catheter while sleeping. Importantly, a dedicated number is provided for patients to call in case of emergencies, and a nurse from a day centre or ward will respond anytime, even during non-office hours, to address any enquiries about the pump.
Selection of Patient and Vascular Access Device
Many patients receiving chemotherapy regimens involving 5FU may be eligible for home infusion therapy. The patients or their caregivers need to have sufficient mental and cognitive fitness and demonstrable self-care capabilities. There is no financial means assessment. Home chemotherapy is generally not advisable for patients who have poor cognitive function, learning problems, poor/unstable living environments, or no telephone access. Elderly patients living alone are eligible as long as they meet the aforementioned criteria and have access to phone calls in case of emergencies.
Several factors can guide the selection of the most appropriate CVAD for each clinical situation. If frequent blood taking is required, a double-lumen catheter is more appropriate. The Hickman catheter is preferred for haematology-oncology patients. If patients require stem cell apheresis, catheters with a wider lumen are needed. The implantable port (Figure 2) is inserted completely under the skin. Hence, it allows patients to carry out normal daily activities, such as showering, more conveniently, although it requires surgical insertion and stitching of the incision wound. The peripherally inserted central catheter (PICC) has the advantage that insertion can be performed at the patient’s bedside, which provides greater flexibility in scheduling. The PICCS are designed to be used up to 12 months, and most PICCs may stay in place and in use for several months.
Figure 2. Implantable port must be accessed with a non-coring needle for infusion therapy.
Patients who are prescribed chemotherapy using the home infusion model are sent to a chemotherapy nurse clinic for pre-chemotherapy assessment and counselling. During pre-chemotherapy assessment at the nurse clinic, patients are assessed on whether they understand and are suitable for home chemotherapy.
Availability of Additional Chemotherapy Regimens for Home Infusion Delivery
Because of the positive feedback received from patients and the positive impact on the healthcare system of the chemotherapy infusion at home model, the feasibility of including more drug regimens for ambulatory home infusion could be explored. There are other chemotherapy agents currently under investigation for home infusion.[15] [24]
Under the partially at-home service model, agents that are administered over one to several days, with long stability[25] and manageable toxicities are targeted. The most widely used agent is 5FU, as the typical treatment runs over 46 hours or continuously with the patient’s radiation therapy. There is room for extending 5FU home infusion to various other disease groups in addition to colorectal and pancreatic cancers by modifying the drug delivery procedures of inpatient infusion regimens. One possible example is 4-day carboplatin-5FU for gastric cancer with the 1-hour infusion of carboplatin administered in a day centre, followed by a 48-hour at-home infusion of 5FU, after which patients return to the day centre to resupply the pump for another 48-hour infusion. Another option is 5-day cisplatin-5FU for head and neck cancer, with the first-day regimen including 3-hour inpatient cisplatin infusion and rigorous hydration with mannitol, followed by a 48-hour at-home infusion of 5FU, and then repetition of the 48-hour infusion. Trabectedin[26] is an antineoplastic agent that could potentially be switched from inpatient to home administration because its administration requires prolonged infusion over 24 hours. It has relatively low toxicity despite the fact that it is a vesicant, and the possibility of extravasation occurring at home has been largely prevented by CVAD pre-insertion.
Other advances have led to the development of further generations of multiple-channel and flexibly programmable pumps that can deliver temporally precise patterns of chemotherapy.[27] Such pumps could allow complex chemotherapy regimens to be switched from the inpatient to the outpatient setting. Certain patients, especially those with support at home, can take home several doses of chemotherapy to be delivered by a programmable digital pump via a central line and then return for refills. In Europe, this change in the management of complex treatments has reduced the number of in-hospital days.[28] Examples of patients who can benefit from this change include those with acute leukaemia who receive induction, re-induction, and consolidation chemotherapy infusions and patients with lymphoma who are conditioned with the BEAM regimen (carmustine [BCNU], etoposide, cytarabine and melphalan) prior to haematopoietic stem cell transplantation. Other initiatives could also be undertaken to encourage at-home administration of such treatments as pump-administered antibiotics. These facts and products have resulted in the rapid growth of a new home-care industry.
The possibility of chemotherapy infusion at home could be increased by calling for extra community care. Options for improvements include provision of at-home chemotherapy by a chemotherapy homecare nurse or community nurse after receiving training, at community centres, or in a mobile bus for chemotherapy care.[29] Once the appropriate infrastructure is available, the totally at-home model that is already popular for chemotherapy delivery in rural areas of some Western countries (eg, the United Kingdom, Canada) can be more widely implemented in Hong Kong. More chemotherapy drugs with relatively few toxicities and manageable sideeffects could be included for administration at home or community centres by chemotherapy nurses regardless of infusion duration.[9]
Availability of Vascular Access Devices
Throughout the management of at-home chemotherapy infusion, CVADs have a paramount role. The lack of a dedicated support team to provide reliable and adequate vascular access may be one of the reasons why some hospitals do not offer home chemotherapy. Besides vascular surgeons, other specialties could also be involved in performing CVAD placement, for example, interventional radiologists could perform PICC insertion, and general surgeons could place implantable ports. However, the specialties of general surgery and radiology also face increased pressure due to elevated demand for their services.
In many Western countries, mainland China, and Taiwan, PICC insertion is commonly done by a properly trained nurse or PICC nurse in the day centre setting, which can free physicians for other clinical tasks while still maintaining quality service.[30] Compared with the other CVAD types, insertion of a PICC is less invasive and relatively easy to perform, mainly requiring expertise in handling needles and guide wires and inserting catheters, which can be imparted through supervised training.[31]
Strengthening Home Backup Support
The centres that have implemented ambulatory home chemotherapy service in Hong Kong have not encountered major problems so far, as the centres continuously review and share their practices and have taken measures to prevent potential issues. In the future, to further expand services to more agents or regimens with wider toxicity coverage, more intensive and structured telephone follow-up with patients and their families is required. Accordingly, patients are always encouraged to get in touch over the phone if they have problems. Further, telehealth interventions for remote monitoring and management of chemotherapy side-effects may help providers to connect with patients at home.[32] Moreover, such interventions could help primary healthcare professionals or community/home care nurses with chemotherapy training to take on additional roles such as monitoring, supervising therapy, or home care support.
Modern chemotherapy using the ambulatory home infusion model became widely accepted with the development of CVADs and portable infusion devices. Providing sustainable service and staffing for ambulatory home chemotherapy requires several components. Protocol development, patient counselling, and emergency support are necessary. Such support should account for drug toxicity, the treatment’s expected side-effects, and the self-care capabilities of the patient and family. Logistics should be established through multidisciplinary collaboration, chemotherapy nurse clinics, expertise development, and training. The chemotherapy infusion at home model for advanced cancer could be further promoted and developed by exploring at-home chemotherapy administration of additional drugs, identifying future opportunities for work with newer and more advanced practice foci, and training initiatives. Such training could involve CVAD placement and usage, telehealth system support, programmable digital pumps for complex chemotherapy regimens, and chemotherapy administration by chemotherapy nurses at the patient’s home or community centre. Our future goal is to meet the needs for increasing service load and on-going chemotherapy access to populations who need it.
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