Clinical question
What considerations are required and what strategies are available for deintensifying type 2 diabetes mellitus (T2DM) treatment in adults aged 65 years or older, particularly for those with multimorbidity or frailty?
Bottom line
Effective diabetes management, particularly in older and frail adults, requires a nuanced approach that balances the benefits of antihyperglycemic medications with the risks of intensive glycemic control. While certain diabetes medications are important to the prevention of chronic complications of diabetes, intensive glycemic management can increase the risk of hypoglycemia, potentially leading to serious adverse outcomes (eg, falls, seizures, hospitalizations, death). In patients aged 65 or older and those with frailty, a tailored approach to diabetes care is crucial. A patient-centred approach might include individualizing glycemic targets and reducing the intensity of both pharmacologic treatment and routine monitoring to prioritize patient safety and quality of life. Implementing such patient-centred care requires clinicians to thoroughly consider each patient’s overall health, preferences, and social context, thus ensuring that treatment decisions align with the patient’s personal goals of care and life circumstances.
Evidence
Type 2 diabetes mellitus is a condition that is strongly linked with aging, with prevalence rising with age.1 In Canada about one-quarter of the population aged 65 or older meets the diagnostic criteria for T2DM.2 Management of T2DM includes the prescription of medication to reduce the risk of long-term microvascular and macrovascular complications.3 As an adjunct, many guidelines also recommend achieving a specific hemoglobin A1c (HbA1c) level (eg, HbA1c <7%).3,4 However, it is important to note that the benefits of diabetes treatment might not become apparent for up to a decade. Furthermore, evidence suggests that intensive diabetes treatment may not be beneficial for adults aged 65 years or older with multiple comorbidities, dementia, or limited life expectancy.5 Consequently, in patients aged 65 years or older who have multimorbidity or frailty (or both), who are particularly at risk of falls or hypoglycemia, immediate risks of tight glycemic control might outweigh long-term advantages.6,7
Because of this, authors of some diabetes guidelines and studies have begun to advocate for more individualized glycemic targets and less intensive T2DM treatment for adults aged 65 years or older, emphasizing the enhancement of everyday quality of life for patients. Diabetes Canada guidelines call for an individualized approach to HbA1c targets in older people, acknowledging that national and international guidelines vary on appropriate glycemic targets, especially for individuals with frailty or those at the end of life.8,9 For most patients, blood glucose targets are deemed suitable when they fall within the range of 5 to 12 mmol/L (fasting and preprandial), corresponding to HbA1c levels lower than 8.5%.9-11 For patients receiving end-of-life care, blood glucose targets between 9 and 15 mmol/L are recommended. As a result, Choosing Wisely Canada encourages tailoring blood glucose control primarily on an individual basis within the full medical context of the patient.12
Approach to patients
In managing T2DM in adults aged 65 years or older, a comprehensive approach is essential to account for the complex health needs of patients, including psychological, functional, social, and geriatric aspects. These factors not only influence the risks of side effects and the expected benefits of diabetes treatment but also affect patient capacity for effective self-management.11,13 We thus suggest a practical approach, including several steps described below and in Figure 1,13 that the health care team—which might include physicians, nurses, pharmacists, and long-term care staff—can use in their everyday practices to implement deintensification of treatment for patients with T2DM.
Flowchart for deintensification of diabetes care in adults aged 65 years or older
Assess overall health status. The first step is to perform a detailed assessment of the patient’s overall health status. The health care team should categorize the patient’s health status as “good,” “intermediate,” or “poor” by evaluating comorbidities, cognitive function, and functional status. Such an assessment guides the decision-making process, particularly in determining the suitability of deintensification strategies. Patients in “good” health might still benefit from tighter glycemic control, while less stringent goals could be more appropriate for those with limited life expectancy, low cognitive or functional status, a history of hypoglycemia, or a history of multiple comorbidities, as described in Table 1.13
Treatment goals for patients with type 2 diabetes and when to consider deintensification according to patient health status
Determine deintensification strategies. The next phase involves tailoring the patient’s T2DM treatment plan based on their overall health status. This process may include loosening goals related to blood glucose or HbA1c levels, carefully reviewing current medications, and considering reduction or deprescribing of medication where appropriate. All these steps are aimed at minimizing the burden of T2DM treatment, with clinicians balancing the benefits of each medication against potential risks.
Determine medication(s) to deprescribe. When a decision is made to deprescribe an antihyperglycemic medication, priority should be given to those that can cause hypoglycemia (ie, sulfonylurea and insulin). When considering alternatives it is important to understand the benefits and limitations of each option. Switching to medications with lower-risk profiles, such as metformin or dipeptidyl peptidase 4 inhibitors, may be considered. Even if they have not shown a direct cardiovascular benefit, dipeptidyl peptidase 4 inhibitors can help reduce hyperglycemia without provoking hypoglycemia.14
Monitor patient post-deintensification. Acknowledging that patients are unlikely to develop symptomatic hyperglycemia following moderate deprescribing, we recommend a cautious approach that involves monitoring blood glucose or HbA1c levels during the weeks and months following deintensification. It is essential to engage in comprehensive discussions that might involve, in addition to the patient and their health care team, the patient’s informal caregivers and relatives, respecting the patient’s wishes and mental capacity. For patients receiving end-of-life care, intensifying the standard monitoring frequency for T2DM is generally not advised. By doing this, we can reduce the necessity of frequent routine monitoring and align with the objective of minimizing the overall burden of care. Additionally, for patients not taking sulfonylureas or insulin, reducing or even discontinuing home blood glucose monitoring is recommended because there is no risk of hypoglycemia.15 Furthermore, too much monitoring can lead to increased costs and patient discomfort.16 However, it remains important to continue monitoring in cases where HbA1c measurements may be misleading, such as in patients with increased erythrocyte turnover disorders.17
Reduce diabetes-specific assessments. Finally, for patients receiving end-of-life care or with severe frailty or dementia, discontinuation of nonessential T2DM-specific assessments is emphasized.18 Assessments such as those for peripheral artery disease or chronic kidney disease should be discontinued to prioritize the patient’s comfort and quality of life.
Implementation
Implementing deintensification strategies in T2DM treatment requires a patient-centred approach. This process involves more than just adjusting medication and extends beyond HbA1c measurement; it is about fostering a deeper understanding and incorporating and aligning with each patient’s preferences, needs, and values for a broader perspective of patient well-being.11 Engaging in comprehensive conversations with patients and knowing their attitudes toward medication and how much they want to be involved in decision making are essential.
For example, when discussing T2DM treatment options with a patient who is apprehensive about frequent medication changes, the clinician might opt for a more stable regimen with fewer adjustments while still ensuring effective glycemic control. Alternatively, for a patient prioritizing minimal side effects, the clinician might recommend medications known for their lower-risk profiles (eg, metformin) and highly recommend deprescribing medications with a high risk of hypoglycemia (eg, sulfonylurea).
Establishing an action plan that aligns with patient goals of care is key in this process. Clinicians should engage in open and clear discussions and use neutral language to explain the potential benefits and risks of each treatment option. It is important to communicate that deintensification aims to enhance care by reducing patient harms associated with excessive treatment and monitoring.
Patient attitudes toward treatment and their desire to be involved in decision-making processes can vary widely. Using decision aids can be helpful in navigating these discussions. For example, the Diabetes Medication Choice decision aid helps patients weigh the pros and cons of various antihyperglycemic medications based on their preferences and values.19 Similarly, the shared decision-making tool developed by Corser et al involves patient-centred interviewing and collaborative goal setting, helping patients to participate actively in their diabetes management.20 Using these tools, along with creating a typology of patient attitudes toward treatment, can facilitate a more collaborative decision-making process. Some patients may prefer a more directive approach from their health care providers, while others might value a collaborative decision-making process.
Before adjusting T2DM treatment, it is essential to confirm that patients feel informed about the options presented to them and are comfortable with their decisions. The SURE 4-item questionnaire is a simple, easy-to-use tool designed for everyday clinical practice that can be helpful for this purpose.21 It measures 4 dimensions from the patient’s perspective: sure of myself, understanding information, risk-benefit ratio, and encouragement.21
Regular follow-up and monitoring are essential to assessing the safety of the deintensified treatment plan. Adjustments should be made based on ongoing assessments of health status, glycemic control, and patient feedback. This dynamic approach allows for responsive changes to the treatment plan as the patient’s condition and needs evolve over time.
Conclusion
In this article we present a strategy for identifying patients with T2DM who might benefit from treatment deintensification and describe how to develop individualized, collaborative care plans with patients. A tailored approach to diabetes care in adults aged 65 years or older, focusing on individualized treatment and continuous adaptation, ensures that each patient receives the most appropriate care for their unique situation and that treatment aligns with their individual values and goals.
Notes
Choosing Wisely Canada is a campaign designed to help clinicians and patients engage in conversations about unnecessary tests, treatments, and procedures and to help physicians and patients make smart and effective choices to ensure high-quality care is provided. To date there have been 13 family medicine recommendations, but many of the recommendations from other specialties are relevant to family medicine. Articles produced by Choosing Wisely Canada in Canadian Family Physician are on topics related to family practice where tools and strategies have been used to implement one of the recommendations and to engage in shared decision making with patients. If you are a primary care provider or trainee who has used Choosing Wisely recommendations or tools in your practice and you would like to share your experience, please contact us at info@choosingwiselycanada.org.
Footnotes
Competing interests
None declared
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La traduction en français de cet article se trouve à https://www.cfp.ca dans la table des matières du numéro de juin 2024 à la page e81.
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