Amyotrophic Lateral Sclerosis (ALS) From Early Symptoms to Treatment Options

Amyotrophic Lateral Sclerosis (ALS) is a rare neurological disease that gradually affects the nerve cells responsible for controlling muscle movement. This can lead to muscle weakness and difficulties with movement, speaking, swallowing, and breathing as the disease progresses.Although an ALS diagnosis can raise many concerns and questions for patients and their families, understanding the nature of the disease, its symptoms, and available management options is an important step toward improving quality of life and accessing appropriate medical care.In this article from Dalili Medical, we will explore the causes, symptoms, types, and diagnosis of Amyotrophic Lateral Sclerosis (ALS), as well as the latest available treatment options, including medications, physical therapy, nutritional support, and respiratory care. We will also share practical tips to help patients and caregivers better manage the challenges associated with the disease.

1. What Is Amyotrophic Lateral Sclerosis (ALS)?

Amyotrophic Lateral Sclerosis (ALS), also known as Lou Gehrig’s disease, is a rare neurodegenerative disease that gradually affects the motor neurons in the brain and spinal cord. These nerve cells are responsible for controlling voluntary muscle movements. As these cells become damaged and die over time, patients may experience muscle weakness and increasing difficulty with movement, speaking, swallowing, and breathing as the disease progresses.

2. Is Amyotrophic Lateral Sclerosis Hereditary?

Approximately 5–10% of ALS cases are familial and associated with genetic factors. The majority of cases occur without a known family history of the disease. However, genetic factors may still contribute to some cases in which no clear family history is present.

3. Does Amyotrophic Lateral Sclerosis Affect Memory and Thinking?

Some people with ALS may experience changes in cognitive abilities or behavior, such as difficulty with planning, concentration, or emotional control. However, many patients retain their intellectual and cognitive abilities, and the disease does not affect memory and thinking in everyone.

4. Does Amyotrophic Lateral Sclerosis Cause Pain?

ALS does not usually directly affect sensation. However, patients may experience pain due to muscle cramps, spasms, stiffness, reduced mobility, or joint problems. Appropriate treatments, range-of-motion exercises, and medical care can help relieve pain and improve patient comfort.

5. Does Amyotrophic Lateral Sclerosis Affect Breathing?

Yes. As the disease progresses, it may weaken the muscles responsible for breathing, leading to shortness of breath, difficulty breathing during sleep, and reduced ability to cough effectively and clear secretions. Regular medical monitoring and respiratory support when needed can help relieve symptoms and improve quality of life.

6. Can People with Amyotrophic Lateral Sclerosis Live for Years with the Disease?

Yes. People with ALS can live for several years after symptoms begin, as the rate of disease progression and life expectancy vary from person to person. Studies indicate that survival is often around two to five years from symptom onset, although some patients live significantly longer.

This average cannot reliably predict the course of the disease in an individual. Appropriate medical care, respiratory support, and nutritional management may help improve quality of life and support patients throughout the course of the disease.

7. Are There Any Foods or Vitamins That Can Treat Amyotrophic Lateral Sclerosis (ALS)?

To date, no diet or nutritional supplement has been proven to cure ALS. However, maintaining adequate nutrition, eating a balanced diet, and preserving a healthy body weight are important aspects of care for people living with the disease.

Regular assessment of swallowing ability is also recommended. A registered dietitian can help determine individual nutritional needs and recommend appropriate dietary adjustments when necessary. Patients should avoid taking high doses of vitamins or dietary supplements without consulting their healthcare provider.

8. Who Is at a Higher Risk of Developing Amyotrophic Lateral Sclerosis (ALS)?

ALS can affect people from different backgrounds, although certain factors may be associated with an increased risk of developing the disease. The annual incidence is estimated at approximately one to two new cases per 100,000 people, although rates vary by population and geographic region.

The main factors associated with an increased risk include:

• Age: The likelihood of developing ALS increases with age. The disease most commonly develops between the ages of 40 and 70, although it can occur at other ages.

• Sex: Studies suggest that ALS is more common in men than in women, particularly at younger ages. However, the difference between the sexes tends to narrow with increasing age.

• Genetic factors: Approximately 5–10% of cases are associated with a family history or known genetic factors, while most cases occur without a clear family history.

• Ethnicity and population background: Reported rates of ALS vary among populations. These differences may be influenced by multiple factors and do not mean that belonging to a particular ethnic group necessarily leads to the disease.

Types of Amyotrophic Lateral Sclerosis (ALS)

First: Types of ALS Based on the Initial Symptoms

1. Limb-Onset ALS

This type typically begins with symptoms in the arms or legs, such as a weak grip, difficulty writing or holding objects, foot dragging while walking, or difficulty climbing stairs. Limb-onset ALS is the most common form of the disease. Symptoms may gradually spread to other muscle groups as the disease progresses.

2. Bulbar-Onset ALS

In this type, symptoms initially affect the muscles responsible for speaking and swallowing. These symptoms may include slurred speech, changes in voice quality, reduced tongue movement, difficulty swallowing food or liquids, and increased saliva production. These difficulties can affect the patient's ability to communicate and eat normally.

3. Respiratory-Onset ALS

Respiratory-onset ALS is less common and begins with weakness of the respiratory muscles. Symptoms may include shortness of breath, particularly when lying down, disturbed sleep, morning headaches, and fatigue upon waking. These symptoms require prompt medical evaluation to determine their cause and assess respiratory function.

Second: Types of ALS Based on Genetic Factors

1. Familial ALS

Familial ALS is associated with a family history of the disease and accounts for approximately 5–10% of cases. It may be linked to inherited genetic variants that increase the likelihood of developing ALS. The specific genetic changes and patterns of inheritance vary depending on the gene involved.

2. Sporadic ALS

Sporadic ALS accounts for the vast majority of cases and occurs in people without a known family history of the disease. Although its exact cause is not fully understood, research suggests that a combination of genetic and environmental factors may contribute to its development.

It is important to note that the absence of a family history does not rule out genetic involvement. Genetic variants may also be identified in some people diagnosed with sporadic ALS.

Third: Classification Based on the Type of Motor Neurons Affected

1. Upper Motor Neuron Involvement

Damage to the upper motor neurons can cause symptoms such as muscle stiffness, increased muscle tone, exaggerated reflexes, and difficulty coordinating movements.

2. Lower Motor Neuron Involvement

Lower motor neuron damage affects the nerve cells that transmit signals from the spinal cord to the muscles. It may lead to muscle weakness, muscle atrophy, involuntary muscle twitching (fasciculations), and, in some cases, painful muscle cramps.

3. Combined Upper and Lower Motor Neuron Involvement

Involvement of both upper and lower motor neurons is a characteristic feature of classical ALS. Patients may exhibit a combination of muscle stiffness and exaggerated reflexes, on the one hand, and muscle weakness, atrophy, and fasciculations on the other.

What Causes Amyotrophic Lateral Sclerosis (ALS)?

The exact cause of ALS remains incompletely understood. However, research has identified several genetic and biological mechanisms that may contribute to the development of the disease.

• Genetic Factors: Approximately 5–10% of ALS cases are associated with a family history of the disease. These cases may result from variants in specific genes, such as SOD1, C9orf72, and FUS, which can affect motor neuron function.

• Motor Neuron Degeneration: The progressive deterioration of motor neurons disrupts the nerve signals transmitted from the brain and spinal cord to the muscles, resulting in gradual muscle weakness and atrophy.

• Abnormal Protein Accumulation: The accumulation of certain proteins or disruptions in the way cells process and remove them may interfere with normal neuronal function and contribute to cell damage and death.

• Oxidative Stress: An imbalance between oxidizing molecules and antioxidants within cells may damage cellular components and impair their normal functions.

• Cellular Dysfunction: Problems with mitochondrial function, which is responsible for energy production, and disruptions in cellular waste-removal systems may contribute to motor neuron degeneration.

• Environmental Factors: Researchers are investigating whether certain environmental and occupational exposures, including some chemicals and toxins, may be associated with an increased risk of ALS. However, the evidence remains inconclusive, and no single environmental factor has been definitively established as a direct cause of the disease.

How Is Amyotrophic Lateral Sclerosis (ALS) Diagnosed?

1. Electromyography and Nerve Conduction Studies (EMG/NCS)

Electromyography (EMG) and nerve conduction studies (NCS) are important tests in the evaluation of suspected ALS.

EMG helps detect signs of motor neuron damage and its effects on the muscles, while NCS evaluates the speed and characteristics of electrical signal transmission through the nerves. The results of these tests help support the diagnosis and assist in ruling out certain other neurological disorders.

2. Neurological Examination

A neurologist performs a comprehensive clinical examination to assess nervous system function. This may include:

• Assessing muscle strength and the extent of muscle weakness.

• Looking for muscle atrophy and fasciculations.

• Evaluating reflexes and checking for muscle stiffness or increased muscle tone.

• Assessing walking ability, balance, and coordination.

• Evaluating tongue movement, speech, and swallowing when necessary.

The findings of the neurological examination, together with the progression of symptoms over time, help determine whether the clinical features are consistent with motor neuron disease.

3. Magnetic Resonance Imaging (MRI)

MRI of the brain or spine, depending on the patient's symptoms, may be used to investigate other conditions that could explain muscle weakness or movement difficulties. These include spinal cord compression and certain structural disorders that can produce symptoms similar to those of ALS.

MRI does not confirm ALS on its own. Instead, it helps exclude other conditions that may require different treatments.

4. Blood and Urine Tests

Depending on the patient's symptoms and medical history, a doctor may order laboratory tests to rule out conditions that can cause muscle weakness or similar neurological symptoms.

These tests may include assessments of vitamin B12 levels, thyroid function, and selected markers associated with autoimmune or muscle disorders.

Urine tests may also be requested in specific circumstances when the doctor considers them useful for investigating alternative causes of the symptoms.

5. Additional Tests When Necessary

Depending on the initial findings, a doctor may recommend further investigations, including:

• Lumbar Puncture: A procedure used to collect a sample of cerebrospinal fluid for analysis when certain inflammatory, infectious, or other conditions that may resemble ALS are suspected.

• Genetic Testing: This may be considered when there is a family history of ALS or when an inherited form is suspected. Testing can help identify genetic variants associated with certain cases.

• Respiratory Function Tests: These assess the effectiveness of the respiratory muscles, particularly when symptoms such as shortness of breath or sleep disturbances are present.

• Swallowing and Nutritional Assessments: These may be recommended for patients experiencing swallowing difficulties, weight loss, or recurrent choking while eating or drinking.

Surgical Treatment for Amyotrophic Lateral Sclerosis (ALS)

To date, no surgical procedure has been proven to cure Amyotrophic Lateral Sclerosis (ALS) or restore damaged motor neurons to normal function. However, certain surgical and interventional procedures may help support nutrition and breathing, manage specific complications, and improve patient comfort and quality of life.

It is important to distinguish procedures that address complications of ALS from surgeries performed to treat other conditions that may cause symptoms similar to those of the disease.

First: Major Surgical and Interventional Procedures

1. Gastrostomy (Feeding Tube Placement)

A feeding tube placed directly into the stomach may be recommended when oral intake becomes insufficient or unsafe because of swallowing difficulties, or when a patient struggles to meet nutritional and fluid requirements.

Common methods of tube placement include:

• Percutaneous Endoscopic Gastrostomy (PEG): A feeding tube is inserted into the stomach through a small opening in the abdominal wall with the assistance of an endoscope.

• Radiologically Inserted Gastrostomy (RIG): A feeding tube is placed using imaging techniques to guide it into the correct position.

• Surgical or Laparoscopic Gastrostomy: These approaches may be considered in selected cases when other methods are unsuitable.

The medical team selects the most appropriate technique based on the patient's condition, swallowing ability, respiratory function, and overall health. This procedure aims to support nutrition and address difficulties with food intake, but it does not treat ALS itself or stop disease progression.

2. Tracheostomy

A tracheostomy is a surgical procedure in which an opening is created at the front of the neck into the trachea, allowing a tube to be inserted to support breathing. It may be used when a patient requires long-term mechanical ventilation through a ventilator.

Tracheostomy may be considered when other forms of respiratory support are insufficient or unsuitable, taking into account the patient's wishes and the goals of care agreed upon with the medical team.

The potential benefits and burdens should be carefully discussed before making a decision. These include the need for ongoing tracheostomy tube care and airway management. It is important to emphasize that a tracheostomy provides respiratory support but does not stop the progression of ALS.

3. Salivary Gland Injections with Botulinum Toxin

Some people with ALS experience excessive drooling because of difficulty swallowing and managing oral secretions, rather than necessarily producing too much saliva.

When medications and conventional measures are insufficient to control this problem, a doctor may recommend injections of botulinum toxin into the salivary glands to reduce saliva production. This procedure is usually performed without open surgery, and ultrasound guidance may be used to improve injection accuracy.

The procedure should be performed by an appropriately trained specialist, as excessive reduction in secretions or additional swallowing weakness may cause problems in some patients.

Second: Other Procedures and Their Role in ALS Treatment

1. Diaphragm Pacing

This procedure uses electrical stimulation of the diaphragm to assist breathing. However, studies have not demonstrated the expected clinical benefits in people with ALS, and clinical trials have raised safety concerns. Therefore, diaphragm pacing is not recommended as a routine treatment for ALS.

2. Spinal Surgery

Spinal surgery does not treat ALS itself. However, it may be necessary if a patient also has a separate condition, such as severe spinal cord compression, for which surgery is appropriate.

The cause of the symptoms must be carefully evaluated before a decision is made. Surgery that does not address the actual cause of weakness may not provide the intended benefit, and it carries potential risks related to anesthesia and recovery.

3. Orthopedic Surgery and Contracture Correction

Reduced mobility and muscle weakness may lead to joint stiffness or contractures that affect comfort and movement. Surgery is not a routine treatment for these problems in people with ALS, but it may be considered in selected cases when a separate, surgically correctable problem is present.

The decision depends on the patient's functional status, the expected benefits, potential risks, and how well the procedure aligns with the overall goals of care.

Third: How Can Surgical and Interventional Procedures Be Performed Safely?

Before any surgical or interventional procedure is considered, the patient's condition should be assessed comprehensively. This evaluation may include:

1. Neurological Assessment: To determine disease progression, current symptoms, and the goals of the proposed intervention.

2. Respiratory Function Assessment: To evaluate respiratory muscle function and estimate the risks associated with anesthesia and the procedure.

3. Nutritional and Swallowing Assessment: To identify nutritional needs and assess the risks of choking or aspiration.

4. Review of Medications and General Health: To identify coexisting conditions and factors that may affect procedural safety.

5. Discussion of Benefits, Risks, and Alternatives: To ensure that the patient and family understand the expected outcomes and potential future care requirements.

6. Post-Procedure Care Planning: To arrange respiratory support, nutritional care, nursing assistance, and rehabilitation when needed.

Can Surgery Stop the Progression of ALS?

No. No surgical procedure has been proven to stop ALS progression or restore motor neurons that have been damaged. Surgical and interventional procedures are intended to address specific problems, such as difficulty maintaining adequate nutrition, the need for respiratory support, or excessive drooling.

Supportive Therapies for ALS: Heat Therapy and Hydrotherapy

Certain supportive therapies, including heat therapy and hydrotherapy, may help relieve some symptoms associated with ALS, such as pain, muscle cramps, and stiffness, while supporting comfort and mobility.

However, these approaches do not treat the underlying disease, and there is insufficient evidence that they can prevent motor neuron damage or slow disease progression.

These therapies should preferably be used in consultation with a physician and a physical therapist, according to the patient's condition and respiratory and mobility capabilities.

First: Heat Therapy

Heat therapy involves applying moderate warmth, such as warm compresses, to help relieve pain, stiffness, and muscle cramps in some people with ALS. When appropriate, it may be used before gentle stretching exercises, as advised by a physical therapist.

Potential Benefits of Heat Therapy

• Helping relieve pain and muscle cramps.

• Reducing stiffness and improving comfort.

• Promoting muscle relaxation before gentle movement and stretching exercises.

• Enhancing comfort during everyday activities.

Safety Considerations

Heat should be applied carefully, using a comfortable temperature and avoiding prolonged exposure. Patients should avoid excessive heat, particularly if they have reduced sensation, fragile skin, or difficulty moving independently. A healthcare professional can help determine the safest approach for each individual.

Safety Precautions When Using Heat Therapy

• Use moderate heat and avoid excessively hot compresses or placing a heat source directly on the skin.

• Place a cloth barrier between the skin and the compress, and check the skin regularly to prevent burns.

• Avoid applying heat to areas where skin sensation is impaired or heat tolerance is reduced.

• Discontinue use if severe redness, pain, dizziness, or any unusual sensation occurs.

• Consult a healthcare professional before using heat therapy if the patient has circulation problems or impaired skin sensation.

It is important to note that direct scientific evidence supporting the effectiveness of heat therapy in people with amyotrophic lateral sclerosis (ALS) remains limited. Therefore, it is primarily used to relieve certain symptoms and improve comfort, rather than as a treatment that modifies the course of the disease.

Second: What Is Hydrotherapy?

Hydrotherapy is a form of physical therapy that involves performing movement exercises in a pool, usually containing warm water, under the supervision of a qualified professional. The buoyancy of water reduces the load on the joints, which may make certain movements easier for people experiencing muscle weakness.

Potential Benefits of Hydrotherapy

• Facilitating arm and leg movements within the patient's physical capabilities.

• Helping maintain joint range of motion and flexibility.

• Relieving stiffness and muscle cramps in some patients.

• Improving comfort while performing certain movement exercises.

• Supporting participation in light physical activity when the patient's health condition permits.

In some cases, a physical therapist may recommend trying exercises in a warm-water pool at approximately 32–34°C (89.6–93.2°F), adjusting the temperature and type of exercise according to the patient's tolerance. However, this temperature is not suitable for everyone, and direct evidence of the benefits of hydrotherapy in ALS remains limited.

Safety Precautions When Practicing Hydrotherapy

Aquatic exercise requires special care for people with ALS because muscle weakness may affect balance and respiratory function as the disease progresses. Key precautions include:

• Specialized supervision: Exercises should be performed under the supervision of a physical therapist, with appropriate assistance provided when entering and leaving the pool.

• Respiratory assessment: Respiratory function should be assessed before starting, especially in patients experiencing shortness of breath or respiratory muscle weakness.

• Assessment of swallowing and secretion management: If the patient has swallowing difficulties or a weak cough, the risk of water entering the airway should be evaluated to determine whether aquatic exercise is appropriate.

• Avoiding overexertion: Exercises should be relatively light and brief, with sufficient rest periods. Activities that cause excessive fatigue should be avoided.

• Monitoring water temperature: Excessively hot water should be avoided, and the patient's response to heat and physical activity should be monitored.

• Stopping exercise if unusual symptoms occur: Exercise should be discontinued if the patient develops shortness of breath, dizziness, severe fatigue, or a feeling of increasing weakness.

Swimming or exercising in water alone is not recommended for individuals with muscle weakness or impaired balance. Appropriate assistance and supervision are essential to reduce the risk of falls or drowning.

Can Heat Therapy and Hydrotherapy Slow Disease Progression?

There is insufficient scientific evidence to establish that heat therapy or hydrotherapy can stop the progression of ALS or treat the damage to motor neurons. Their potential benefits are primarily related to relieving certain symptoms, improving comfort, and maintaining mobility within safe limits.

First: Nutritional Therapy for Amyotrophic Lateral Sclerosis (ALS)

Nutritional therapy is an essential component of care for people with amyotrophic lateral sclerosis (ALS). It aims to maintain body weight, provide adequate energy, protein, and fluids, and reduce the risks of malnutrition, dehydration, and choking while eating and drinking.

Weight loss or failure to meet nutritional requirements may worsen weakness and negatively affect overall health and quality of life. Therefore, regular monitoring of body weight and nutritional status is recommended, with referral to a registered dietitian or qualified nutrition professional when needed.

1. A Balanced, High-Energy Diet

People with ALS need a balanced diet that provides sufficient energy, protein, and essential nutrients, taking into account their ability to chew and swallow and their tolerance of different foods.

Key dietary recommendations include:

• Consuming protein-rich foods: Such as eggs, milk, yogurt, fish, meat, poultry, and legumes to help meet the body's nutritional needs.

• Increasing the energy density of meals when needed: By incorporating foods such as olive oil, avocados, and full-fat dairy products, according to individual requirements.

• Eating small, frequent meals: Smaller meals may help reduce fatigue during eating, especially when mealtimes are prolonged.

• Maintaining adequate hydration: By consuming fluids that are appropriate and safe to swallow, based on an assessment of the patient's condition.

• Monitoring body weight regularly: To detect weight loss early and adjust the dietary plan when necessary.

The nutritional plan should be individualized because requirements vary according to body weight, physical activity, disease stage, and the presence of swallowing or respiratory difficulties.

2. Modifying Food and Fluid Consistency

Some people with amyotrophic lateral sclerosis (ALS) may experience difficulty chewing or swallowing, increasing the risk of choking or aspiration of food and fluids into the airway. In such cases, a swallowing specialist or the medical team may recommend modifying food and fluid consistency to match the patient's swallowing abilities.

Possible modifications include:

• Providing soft or puréed foods when appropriate.

• Cutting food into small, manageable pieces.

• Adjusting fluid consistency if a swallowing assessment indicates that this is necessary.

• Eating in an upright position, with appropriate head and neck alignment as recommended by a specialist.

• Allowing sufficient time for meals and avoiding rushing while eating.

Food consistency should not be modified, and fluids should not be thickened, without appropriate guidance, because the most suitable approach varies from person to person. A specialist assessment should be sought if the patient develops frequent coughing while eating, a change in voice after swallowing, choking sensations, or unintentional weight loss.

3. Tube Feeding When Necessary

When oral intake becomes insufficient to meet the body's nutritional needs, or swallowing becomes unsafe, the medical team may discuss the option of a feeding tube that delivers nutrition directly into the stomach, such as a gastrostomy tube.

This procedure helps provide nutrition, fluids, and medications when needed and may reduce the burden associated with eating for some patients. However, it does not prevent all episodes of choking or aspiration, nor does it stop disease progression.

It is preferable to discuss this option early, before severe malnutrition or significant deterioration in respiratory function develops. This allows patients and their families to understand the available options and make informed decisions in collaboration with the treating team.

Second: Respiratory Therapy for Amyotrophic Lateral Sclerosis (ALS)

Respiratory therapy aims to detect respiratory muscle weakness early, maintain effective ventilation, assist with clearing secretions, and reduce respiratory complications.

As the disease progresses, the muscles responsible for inhalation and coughing may weaken, leading to inadequate ventilation, carbon dioxide retention, and difficulty clearing mucus. Therefore, regular monitoring of respiratory function is an important part of comprehensive ALS care.

1. Regular Monitoring of Respiratory Function

Regular assessment helps identify changes in respiratory muscle performance and determine when respiratory support should be initiated.

Assessments may include:

• Measuring lung vital capacity or forced vital capacity (FVC).

• Evaluating respiratory muscle strength using appropriate tests.

• Asking about shortness of breath, particularly when lying flat.

• Assessing sleep disturbances, morning headaches, and fatigue upon waking.

• Evaluating cough strength and the ability to clear secretions.

The physician determines the frequency of testing according to the patient's condition and the rate at which symptoms change. Additional tests may be requested to assess breathing during sleep or detect inadequate ventilation.

2. Non-Invasive Ventilation (NIV)

Non-invasive ventilation is used to support breathing when symptoms or test results indicate respiratory muscle weakness or inadequate ventilation. One commonly used device is bilevel positive airway pressure (BiPAP), which supports breathing through a mask placed over the nose or face without requiring a tube inside the trachea.

Potential benefits of non-invasive ventilation include:

• Improving ventilation and reducing symptoms associated with inadequate breathing.

• Relieving shortness of breath in patients who are suitable candidates for this treatment.

• Improving sleep quality and comfort.

• Improving quality of life and potentially prolonging survival in some patients.

The choice of device and its settings depends on the medical team's assessment, with ongoing monitoring of mask tolerance and ventilation effectiveness. Some patients may require alternative or additional interventions if non-invasive ventilation is insufficient or unsuitable.

3. Assistance with Clearing Mucus and Secretions

Weakness of the cough muscles can make it difficult to clear mucus and secretions, increasing the risk of airway obstruction and respiratory infections. For this reason, the medical team may recommend airway-clearance techniques, including:

• Assisted coughing techniques: Breathing and physical techniques that help make coughing more effective.

• Mechanical insufflation-exsufflation devices (cough-assist devices): These devices change air pressure to help mobilize and expel secretions.

• Secretion suction devices: Used when necessary to remove secretions that the patient cannot clear adequately on their own.

The appropriate method is determined according to cough strength, secretion volume, swallowing ability, and overall respiratory status.

Why Is It Important to Integrate Nutritional and Respiratory Care?

Nutritional and respiratory care are closely interconnected in people with amyotrophic lateral sclerosis (ALS). Swallowing difficulties may affect nutritional intake, while malnutrition and weight loss can worsen overall weakness. Respiratory problems, in turn, may increase fatigue during meals.

Therefore, coordinated follow-up involving a neurologist, dietitian, respiratory care team, and swallowing specialists is important for identifying individual needs and adjusting the care plan as the disease progresses.

Drug Treatment for Amyotrophic Lateral Sclerosis (ALS)

Drug treatment for ALS aims to slow disease progression as much as possible, while also relieving associated symptoms and improving the patient's quality of life. Although no cure is currently available, certain medications may help slow the decline in motor function or prolong survival in some patients. Other treatments target specific symptoms.

First: Disease-Modifying Medications

1. Riluzole

Riluzole is one of the main medications used to treat ALS. It is believed to work by affecting certain chemical signals involved in communication between nerve cells.

Potential benefits include:

• Helping to slow disease progression to a limited extent.

• Prolonging survival in some patients.

• Potentially delaying certain disease-related complications, although it does not restore nerve function that has already been lost.

Patients require monitoring of liver function and laboratory testing as directed by their physician because the medication may cause liver-related adverse effects.

2. Edaravone

Edaravone is a medication with antioxidant properties that is used with the aim of slowing the decline in motor function in some people with ALS.

In some countries, it is available as an intravenous infusion or an oral formulation. The oral formulation may also be administered through a feeding tube when appropriate. However, recommendations regarding its use vary because evidence of its benefits across different patient populations remains limited. Availability and prescribing requirements also differ between countries.

3. Tofersen (Qalsody)

Tofersen is a targeted treatment for a specific group of people with ALS: patients who have a confirmed mutation in the SOD1 gene associated with the disease.

The medication targets the genetic material responsible for producing the SOD1 protein, with the aim of reducing production of the abnormal protein associated with nerve cell damage. It is administered by injection into the cerebrospinal fluid by qualified healthcare professionals.

Its use requires specialized neurological and genetic assessment, and it is not suitable for all people with ALS.

Second: Medications Used to Relieve Symptoms

In addition to disease-modifying medications, physicians may prescribe drugs to relieve symptoms, improve comfort, and support daily functioning. The choice of treatment depends on the patient's condition and individual needs.

Problem or symptom	Examples of medication-based treatments
Muscle cramps and spasticity	Baclofen or other medications selected by the physician
Excessive saliva or difficulty managing secretions	Glycopyrrolate or appropriate alternatives
Pain	Pain relievers selected according to the cause and severity of the pain
Episodes of involuntary laughing or crying	Dextromethorphan/quinidine, when available and clinically appropriate
Constipation	Appropriate laxatives based on medical assessment
Depression or sleep disturbances	Pharmacological or non-pharmacological treatments, depending on the patient's condition

Some patients may also require additional medications or interventions to manage muscle cramps, mood disturbances, sleep problems, or other symptoms associated with the disease.