Alzheimer’s Medication Adherence: Challenges, Outcomes, and Innovative Treatment Approaches

Alzheimer’s disease is emerging as one of the most pressing healthcare challenges in ageing populations worldwide. It progressively impairs memory, cognition, behaviour, and the ability to perform everyday activities, while placing a substantial emotional, social, and economic burden on patients, carers, and healthcare systems. Together, these impacts underscore the urgent need for more effective treatments, stronger support structures, and sustainable long-term care strategies.

According to the WHO, more than 55 million people globally are living with dementia, with nearly 10 million new cases reported every year. While available therapies can help manage symptoms, medication adherence remains a major challenge in Alzheimer’s care.1, 2

Factors such as cognitive decline, swallowing difficulties, complex dosing routines, and carer dependency can interfere with treatment consistency and patient outcomes, driving the need for innovative and patient-centred formulation approaches to improve long-term disease management. 3

What Is Alzheimer's disease?

Alzheimer’s disease is a progressive neurodegenerative disorder that gradually damages brain cells, leading to a decline in remembering, memory loss, thinking ability, and overall cognitive function.4 It is the most common form of dementia and primarily affects older adults, although early-onset cases can also occur.5 The disease develops slowly over time, interfering with a person’s ability to perform daily activities independently 4.

Key Symptoms of Alzheimer’s Disease6

  • Memory loss and forgetfulness
  • Confusion and disorientation
  • Difficulty in communication and language
  • Impaired judgment and decision-making
  • Mood swings and behavioural changes
  • Decline in cognitive and social functioning

Stages of Disease Progression6

1. Early Stage (Mild disease)

Symptoms are generally mild, and individuals may still function independently with limited support. Common early-stage symptoms include mild memory loss, difficulty remembering recent conversations or appointments, trouble finding the right words, occasional confusion, and slight changes in mood or decision-making abilities.

2. Middle Stage (Moderate disease)

Memory impairment and behavioural changes become more significant, often requiring increased carer assistance.

3. Late Stage (Severe disease)

Individuals may lose the ability to communicate effectively, recognize loved ones, or perform essential daily activities such as eating, dressing, and personal hygiene.

According to the WHO, dementia currently affects more than 55 million people worldwide1, with Alzheimer’s disease being the most common form of dementia.

The progression of Alzheimer’s disease has a profound impact on daily functioning and independence, affecting not only patients but also carers and families. As cognitive abilities decline, patients become increasingly dependent on long-term care and continuous medical support, making effective disease management and treatment adherence essential for maintaining quality of life.6

Alzheimer’s Burden in the UK: Key Statistics

Alzheimer’s disease and dementia continue to place a growing burden on the UK healthcare system, economy, caregivers, and wider society. With an aging population and increasing life expectancy, the number of people affected is expected to rise significantly over the coming decades.

Prevalence of Alzheimer’s and Dementia in the UK

  • According to the Alzheimer’s Society, an estimated 982,000 people were living with dementia in the UK in 2024, and this number is projected to increase to 1.4 million by 2040.7
  • Alzheimer’s disease remains the most common form of dementia, accounting for the majority of dementia-related cases in the UK.

Growing Impact of an Ageing Population

The rapid growth in dementia cases is strongly linked to the UK’s aging population. As life expectancy increases, healthcare systems are expected to face greater pressure in diagnosis, long-term care, and support services.

  • The UK Government reported that the number of people aged 65 and older with a formal dementia diagnosis in England reached a record high of 483,000 by December 2024.8

Economic Burden on the Healthcare System

Dementia represents one of the UK’s costliest health conditions, with rising demands on healthcare services, social care systems, and unpaid caregiving support.

  • According to the Alzheimer’s Society, the total cost of dementia in the UK is estimated at £42 billion in 2024, with projections suggesting costs could rise to £90 billion by 2040..6

Carer Burden and Societal Impact

The burden of Alzheimer’s disease extends far beyond patients, significantly affecting families and unpaid carers who provide long-term emotional, physical, and financial support.

  • Research highlighted that approximately 63% of dementia-related costs are borne by patients and their families emphasizing the major societal and caregiving impact associated with the disease.7

These growing statistics highlight the urgent need for improved awareness, early diagnosis, effective treatment strategies, and better medication adherence approaches to reduce the long-term burden of Alzheimer’s disease across the UK.

Clinical Challenges in Alzheimer’s Treatment11

Alzheimer’s disease remains one of the most complex neurological disorders to manage, primarily because there is currently no definitive cure available. Most existing treatment approaches focus on symptom management and temporarily slowing cognitive decline rather than reversing disease progression.9

Another major challenge is the limited efficacy of currently approved Alzheimer’s medications, as treatment responses can vary significantly between patients. While some individuals may experience temporary cognitive stabilisation, others may show minimal improvement or develop side effects that affect long-term adherence.9

Late diagnosis further complicates treatment outcomes, as many patients are diagnosed only after significant brain damage and cognitive decline have already occurred. This reduces the overall effectiveness of available therapies and limits opportunities for early intervention.10

Managing Alzheimer’s disease also requires long-term therapy and continuous caregiver involvement, making treatment routines increasingly complex as the disease progresses. Medication schedules, behavioural symptoms, comorbid conditions, and declining patient independence all contribute to challenges in maintaining consistent and effective care.

The Critical Role of Medication Adherence in Alzheimer’s Outcomes11

  • Medication adherence refers to how consistently patients follow their prescribed treatment schedule, including the correct dosage and timing of medications. In Alzheimer’s disease, proper adherence plays an important role in managing symptoms, slowing cognitive decline, and supporting better quality of life.
  • However, maintaining adherence can be challenging due to memory loss, confusion, declining independence, and difficulty managing complex medication routines. As the disease progresses, many patients rely heavily on carers to organise medications, monitor schedules, and ensure treatment continuity.
  • Poor medication adherence can reduce treatment effectiveness, accelerate disease progression, and increase the risk of hospitalisations and healthcare costs. For this reason, improving adherence remains a key focus in effective long-term Alzheimer’s disease management.

Key Medication Adherence Challenges in Alzheimer’s Patients

Difficulty Swallowing Conventional Tablets

Many elderly Alzheimer’s patients experience swallowing difficulties, also known as dysphagia, which can make conventional tablets and capsules difficult to take consistently. Swallowing problems are more common in older adults and can interfere with proper medication administration.12 3

Forgetfulness and Confusion

Memory loss and cognitive decline are among the primary reasons why Alzheimer’s patients struggle with medication adherence. Patients may forget doses, take medications multiple times, or become confused about treatment schedules, especially as the disease progresses.

According to the Alzheimer’s Association Alzheimer’s Symptoms, memory impairment and confusion significantly affect daily functioning and routine management.13

Complex Dosing Regimens

Many Alzheimer’s patients also manage multiple chronic conditions, leading to complicated medication schedules and polypharmacy. Frequent dosing requirements can increase the likelihood of missed or incorrect doses.3

Complex treatment regimens is a major barrier to medication adherence in chronic diseases.3

Innovative Treatment Approaches to Improve Alzheimer’s Medication Adherence

As Alzheimer’s disease management continues to evolve, there is a growing shift toward patient-centred formulation design that focuses not only on therapeutic effectiveness but also on improving medication adherence and overall patient experience. Since many Alzheimer’s patients struggle with memory impairment, swallowing difficulties, and complex treatment routines, innovative drug delivery approaches are becoming increasingly important in long-term disease management.

Moving Beyond Conventional Tablets

Traditional oral tablets can present significant administration challenges for elderly patients, particularly those experiencing dysphagia, cognitive decline, or reduced independence. This has accelerated the development of alternative dosage forms designed to simplify treatment administration and improve compliance.

The Growing Importance of Oro Dispersible Tablets

  • Among the innovative formulation approaches, Oro Dispersible Tablets (ODTs) are gaining significant attention in Alzheimer’s treatment strategies due to their ease of administration and patient-friendly design.
  • ODTs are designed to rapidly disintegrate in the mouth without the need for water, making them particularly beneficial for elderly patients who may have difficulty swallowing conventional tablets.
  • Research highlights that swallowing difficulties are increasingly common in older patients and have accelerated the development of patient-friendly dosage forms such as ODTs.

Easy Administration for Elderly Patients14

ODTs simplify the medication-taking process, especially for patients with cognitive impairment or reduced motor coordination.

Their convenience can help reduce resistance to medication intake and support more consistent therapy management.

No Need for Water

  • Since ODTs dissolve directly in the mouth, they eliminate the need for water during administration, offering greater flexibility and ease for both patients and caregivers.

Reduced Swallowing Difficulties

  • Swallowing disorders are common among older adults and can interfere with medication adherence.
  • ODT formulations help address this challenge by reducing the discomfort and anxiety associated with swallowing conventional tablets.

A Patient-centred Direction for Alzheimer’s Management

  • As the healthcare industry continues to prioritise adherence-focused treatment strategies, formulation innovations such as ODTs are increasingly being explored to support better medication adherence in Alzheimer’s care.
  • These patient-centred approaches aim to reduce administration barriers, support caregivers, and enhance the overall effectiveness of long-term therapy management.

Bridging the Gap: How Smarter Formulations Improve Treatment Outcomes

Improving medication adherence remains a critical step toward achieving better long-term outcomes in Alzheimer’s care. Smarter and patient-friendly formulations can help support more consistent dosing, reduce administration challenges, and improve treatment continuity.

Simplified dosage forms such as ODTs may also help reduce caregiver burden by making medication administration easier for elderly patients with cognitive decline or swallowing difficulties.15

Better adherence and treatment consistency can contribute to improved patient comfort, enhanced quality of life, and potentially better therapeutic outcomes in long-term disease management.

Novumgen’s Commitment to Supporting Medication Adherence

Novumgen continues to focus on innovative and patient-centred pharmaceutical solutions designed to support better treatment accessibility, convenience, and long-term adherence.

With growing recognition of swallowing difficulties and administration challenges in elderly patients, advanced oral dosage forms such as ODTs are becoming increasingly important in improving patient experience and treatment continuity.

Novumgen’s formulation-driven approach supports the development of therapies designed to:

  • Disintegrate rapidly in the mouth
  • Simplify medication administration for elderly patients
  • Support reliable and consistent dosing
  • Improve patient comfort and acceptance
  • Reduce administration challenges associated with conventional tablets
  • Support adherence across complex therapeutic areas

Through innovation-led development and collaboration with pharmaceutical partners, Novumgen continues to explore solutions that align with real-world patients and carers needs.

References

  1. Dementia
  2. Medicines management issues in dementia and coping strategies used by people living with dementia and family carers: A systematic review - PMC
  3. Understanding Treatment Adherence in Chronic Diseases: Challenges, Consequences, and Strategies for Improvement - PMC
  4. What Is Alzheimer's Disease? | National Institute on Aging
  5. Early-Onset Alzheimer's Disease | Johns Hopkins Medicine
  6. What Are the Signs of Alzheimer's Disease? | National Institute on Aging
  7. How many people have dementia in the UK? | Alzheimer's Society
  8. Dementia profile: prevalence and supporting well topics statistical commentary, March 2025 - GOV.UK
  9. Alzheimer’s Disease: Treatment Strategies and Their Limitations - PMC
  10. Missed and Delayed Diagnosis of Dementia in Primary Care: Prevalence and Contributing Factors - PMC
  11. Medicines management issues in dementia and coping strategies used by people living with dementia and family carers: A systematic review - PMC
  12. Swallowing Disorders in the Older Population - PMC
  13. Symptoms of Alzheimer's disease | Alzheimer's Society
  14. (PDF) Orodispersible Tablets: A New Trend in Drug Delivery
  15. Altering dosage forms for older adults - PMC