Pompe Disease Treatment: Enzyme Replacement Therapy, Diet, Respiratory Care, and More



Resources We Trust Cleveland Clinic: Pompe DiseaseMedlinePlus: GAA GeneNational Organization for Rare Disorders: Pompe DiseaseSouth Carolina Department of Health: When Baby Has an Abnormal Test for Pompe Disease Decreased or Absent Acid Alpha-Glucosidase (GAA)United Pompe Foundation: Clinical Trial Process
Mobility Support for Mobility and Independence In young children, Pompe disease can delay or prevent developmental milestones such as crawling and walking. In older children and adults, it can slowly reduce athleticism and mobility. When Pompe disease weakens leg and torso muscles, supportive therapies and tools can make it easier to stay active and safe. A rehabilitation team can help you find what best fits your needs and talk through insurance coverage, says Darius J. Adams, MD , the medical director of the Jacobs Levy Genomic Medicine and Research Program at Atlantic Health in Morristown, New Jersey. “Especially for the later onset forms where walking can be difficult, rehabilitation teams are really helping in providing bracing and ambulatory aids,” Dr. Adams says. Therapies and interventions may include:e60dc2a1-f33c-4a05-9b50-8e3e8e5976296f864414-3a5a-4774-959b-9b7b34575f36 Physical Therapy These exercise plans can help you preserve muscle strength, increase flexibility, and improve cardiovascular health. Occupational Therapy This focuses on modifying daily activities and using tools to maintain independence. Adaptive Equipment You may require mobility aids such as a wheelchair or cane, orthotics such as leg or special braces, feeding or breathing apparatuses, and grab bars or similar home-safety tools. Surgery This may be an option if you have a spinal deformity or contractures.e60dc2a1-f33c-4a05-9b50-8e3e8e59762968f61424-9c72-45ad-9c14-0857fd4bfc96
Mental Health Mental Health Support As your body changes and daily routines shift, it’s common to feel grief, anxiety, frustration, or depression . Losing some independence can be especially hard, and physical symptoms — such as trouble breathing — may sometimes trigger feelings of panic or fear. That’s why caring for your mental health is just as important as managing your physical symptoms. “Mental health is definitely part of the support team we recommend,” Adams says. Many people find support through a combination of professional help, community, and small daily habits, such as talking with a counselor or practicing mindfulness. You also may want to connect with others in support groups such as the Pompe Alliance and United Pompe Foundation . If feelings of sadness or worry begin to feel overwhelming, let your healthcare team know.
Pompe disease is a rare genetic condition that affects how your body uses energy. It occurs when your body is missing the enzyme acid alpha-glucosidase (GAA), which helps clear glycogen, a sugar stored in the muscles and organs. The lack of this enzyme can cause glycogen to build up in your muscles and can lead to weakness in muscles you use for movement and breathing, in addition to the heart.e60dc2a1-f33c-4a05-9b50-8e3e8e59762968f61424-9c72-45ad-9c14-0857fd4bfc96 Enzyme replacement therapy (ERT), which provides a synthetic version of missing GAA enzyme, is the primary treatment for this condition. It’s not a cure, but it can address symptoms for people in all age groups. Because Pompe disease can impact the entire body, many people with the condition need care from an entire team of specialists, possibly including neurologists, cardiologists, pulmonologists, physical therapists, and dietitians. Because Pompe changes over time, treatment is personalized. So it’s important to talk with your healthcare provider before starting or changing any therapy to find what’s safest and most effective for you.
Respiratory Support Respiratory Support Pompe disease can weaken your diaphragm, the main muscle we use to breathe. This can lead to shallow breathing, especially at night, which may leave you waking up with headaches or feeling unusually tired.e60dc2a1-f33c-4a05-9b50-8e3e8e59762911776acd-9b57-400e-839c-84c3b601ffdf Your care team may suggest a combination of treatments and strategies, including:e60dc2a1-f33c-4a05-9b50-8e3e8e597629f0424611-b7c2-49f0-a343-1afb66d6606c Bilevel Positive Airway Pressure (BiPAP) Therapy This ventilation device pushes pressurized air into your lungs, giving your diaphragm a break. Cough-Assist Devices These machines help clear mucus when your natural cough isn’t strong enough, reducing the risk of infections. Respiratory Muscle Training Exercises designed to strengthen the muscles in your chest can improve your breathing over time. Tracheostomy Reserved for advanced cases, this entails a small surgical opening in your neck for long-term, mechanical ventilation, if other options aren’t enough.
Lifestyle Changes Lifestyle Changes Living with Pompe disease often means making thoughtful adjustments to your daily routines. Fatigue and muscle weakness can affect work, school, travel, and everyday tasks. Changes to your diet and exercise can help you conserve energy, maintain independence, and stay engaged in the activities that matter most. Although they are not necessarily treatments, they can help your quality of life. “It was really hard to accept the limitations at first,” says Heather Shorten, who lives with late-onset Pompe disease and is founder and the executive director of Pompe Alliance, a Pompe disease organization in Ohio. “But I learned to reframe how I thought about it. Before my diagnosis, I could take the stairs; now, I take the escalator. It’s just about changing how I do things so I can still enjoy them.” Pompe disease varies dramatically in severity. For some, it may only require minor tweaks to daily habits. For others, it can be legitimately debilitating and may demand wholesale lifestyle changes. Diet and Nutrition Because Pompe disease can weaken the muscles you use for chewing and swallowing, you may need to adjust what and how you eat. Consider working with a dietitian to make sure you’re getting the nutrients to feel your best. It may help to consider a diet that includes:e60dc2a1-f33c-4a05-9b50-8e3e8e597629c257ae72-467c-43df-86ee-e7df52441475 Ample Protein Good protein sources include lean meats, fish, eggs, beans, soy, and dairy products. Marrero-Stein suggests that proteins make up 30 percent of your total caloric intake. Smart Carbohydrates Whole grains and high-fiber fruits are better choices than sugary snacks to help you get enough nutrients and avoid weight gain.e60dc2a1-f33c-4a05-9b50-8e3e8e59762968f61424-9c72-45ad-9c14-0857fd4bfc96 Eating small portions throughout the day can also keep your energy steady. Softer Textures If chewing feels tiring or swallowing is difficult, try mashing or moistening foods. “Don’t feel compelled to try to finish everything on that plate when you’re having difficulty swallowing,” says Marrero-Stein, who also recommends a swallowing study to make sure food and liquid is not entering your airway, known as aspiration. Smaller Portions Eating less but more often can help prevent fatigue and ease digestion. Exercise and Movement Although people with Pompe disease were once told to avoid activity, experts now encourage gentle, regular movement to keep your muscles active. In addition to physical therapy, exercises may include:e60dc2a1-f33c-4a05-9b50-8e3e8e597629c2ebd4b4-b787-4ba2-8210-611909822efd Strength Training Resistance training can help you maintain muscle function. Flexibility and Mobility Work A stretching routine can reduce stiffness. Aerobic Activities These may include walking, cycling, and swimming.e60dc2a1-f33c-4a05-9b50-8e3e8e5976295a54cf05-d2d2-4111-b90c-76ce3cbb3fc1 Talk to your doctor and physical therapist about what exercises might be appropriate for you.
Enzyme Therapy Enzyme Replacement Therapy (ERT) ERT is the only direct treatment for Pompe disease. It works by giving a genetically engineered version of the missing enzyme through an intravenous (IV) infusion that a physician administers for at least four hours at a time on a recurring schedule. Once in your body, this enzyme helps break down glycogen so it doesn’t build up in your cells. By reducing this buildup, ERT can help protect muscles and support healthier muscle and heart function over time.e60dc2a1-f33c-4a05-9b50-8e3e8e5976296f864414-3a5a-4774-959b-9b7b34575f36 “The goal of therapy is to slow or halt progression of disease with the replacement of the enzyme that you’re either lacking or deficient at,” says M. Valerie Marrero-Stein , a certified pediatric nurse practitioner with the lysosomal storage diseases program at WMCHealth Network in New York City. Before ERT was available, infants with severe Pompe disease usually died from serious heart and muscle problems before age 2.e60dc2a1-f33c-4a05-9b50-8e3e8e5976299bfaa9cc-96c8-4783-b60a-db36a71497c5 Today, ERT has dramatically improved survival and long-term outcomes. In infants, it also can reverse heart damage.e60dc2a1-f33c-4a05-9b50-8e3e8e5976292f004428-3b64-432b-a719-39fdf9ae76dd The U.S. Food and Drug Administration (FDA) has approved three ERT medications for the treatment of Pompe disease. alglucosidase alfa (Lumizyme) This is the long-standing standard of care for children and adults with all forms of Pompe disease to stabilize muscle and lung function.e60dc2a1-f33c-4a05-9b50-8e3e8e59762900ea0be9-f8c1-4ef1-89be-e5ad402cc790e60dc2a1-f33c-4a05-9b50-8e3e8e597629ab3b657f-d3a2-477a-9bc1-b15ba3375266 In clinical trials for Lumizyme, adults increased their walking distance by an average of 82 feet over six minutes.e60dc2a1-f33c-4a05-9b50-8e3e8e59762909b6f848-99d1-4af3-b171-3a20e3f7c820 For infants, 83 percent of babies treated before 7 months old were alive and breathing without a ventilator at 18 months old.e60dc2a1-f33c-4a05-9b50-8e3e8e597629835fc551-8138-45dc-b06e-88464798d5e7 avalglucosidase alfa (Nexviazyme) The FDA approved this medication for people at least 1 year old with late-onset Pompe disease.e60dc2a1-f33c-4a05-9b50-8e3e8e5976297ec26d84-9eb9-42e2-ac5f-b96a92d0ce59 It can improve lung function, walking ability, and other motor skills over time.e60dc2a1-f33c-4a05-9b50-8e3e8e59762902cb57b9-fdcf-49b1-a794-2d54079ed346 cipaglucosidase (Pombiliti) and alfa-atga/miglustat (Opfolda) This combination therapy is for adults with late-onset Pompe disease who are not improving on another ERT. It can improve walking distance and muscle strength, according to manufacturer-funded trials.e60dc2a1-f33c-4a05-9b50-8e3e8e5976296b99a22d-6909-4494-845f-f9d497c5a2e5 Immune Tolerance Induction Some infants with Pompe disease are born without any natural GAA enzyme. These babies are called cross-reactive immunologic material (CRIM)-negative, and their bodies create antibodies to block ERT.e60dc2a1-f33c-4a05-9b50-8e3e8e5976292b19cd55-27f0-4c2b-b1af-55b23cb6426c To prevent this, doctors use immune tolerance induction (ITI). This temporary treatment uses medications such as rituximab (Rituxan), methotrexate, and intravenous immunoglobulin to reduce or prevent antibodies that can interfere with ERT, which allows children to tolerate ERT.e60dc2a1-f33c-4a05-9b50-8e3e8e59762901f526e5-b907-47c2-8580-f1f79209e4dd ITI is often lifesaving for babies at high risk, giving them the best chance to respond to therapy.e60dc2a1-f33c-4a05-9b50-8e3e8e59762986db3462-8850-452a-b7fe-1f54febddcb5
Speech Therapy Speech Therapy Swallowing issues affect about one-third of adults with late-onset Pompe disease. Known as dysphagia , these challenges are often linked to an enlarged tongue or weakening of the tongue muscles, which can make eating and talking difficult.e60dc2a1-f33c-4a05-9b50-8e3e8e5976298f9bc964-c0db-44cc-a1bf-efdc696bd1a7 Speech issues are also common in Pompe disease. Some people with the condition, especially children who were diagnosed at a young age, encounter speech impairments such as a very nasal voice and lack of precision when speaking.e60dc2a1-f33c-4a05-9b50-8e3e8e59762971ba1d65-40b4-4773-8cda-b473bda5daae A speech therapist can help with swallowing and speech issues. Getting a professional assessment may help identify problems early and lower the risk of complications, such as aspiration.e60dc2a1-f33c-4a05-9b50-8e3e8e5976290603a0d6-5dc4-4c4d-91a1-3b0d00c93f20
Questions to Ask Your Doctor How are we measuring whether my treatment is working and what “success” looks like for me in the next six months?What are the side effects of my treatment?Is the current dosage of my treatment appropriate for me right now?Are there new treatments I should know about?When will I know it is time to see a speech therapist?Can you recommend a social worker or a therapist who understands rare diseases?When I have a quick question or a new symptom between visits, who is the best person to call to get a fast answer?Can my care partner sit in on my next few appointments to help me keep track of all this information?
The Takeaway Enzyme replacement therapy is the primary treatment for Pompe disease, which occurs when your body is missing a specific enzyme, though your doctor may suggest a variety of additional treatment options. Because Pompe disease can lead to weakness in the muscles you use for breathing and moving, support devices and physical and occupational therapy can help you with breathing and mobility issues. Chewing and swallowing can be difficult with this condition, so talk to your doctor and a registered dietitian about ways to ensure you are getting enough nutrition without pain or complications. Talk to your doctor about feelings of depression or anxiety that you may have with Pompe disease.