Charcot-Marie-Tooth disease type 5 (CMT type 5) is a rare inherited nerve disease that mainly damages the long nerves to the feet, legs, hands, and arms and also affects the “pyramidal tracts,” which are pathways in the brain and spinal cord that control movement. Because both the peripheral nerves and these central motor pathways are involved, people usually have symptoms of classic CMT (weak feet, thin lower legs, high arches) together with “pyramidal” signs such as stiff legs and very brisk reflexes. The disease gets worse slowly over many years and usually starts in childhood or early adult life.NCBI+2NCBI+2
Charcot-Marie-Tooth disease type 5 (CMT5) is a rare inherited nerve disease. It mainly damages the long nerves that go from the spinal cord to the legs and feet, and sometimes to the hands. People slowly develop weak, thin muscles in the feet and lower legs, trouble walking, high-arched feet, and sometimes stiffness (spasticity) in the legs. It is caused by changes in genes and is usually passed down in families. There is no cure yet, so treatment focuses on symptoms, safety, and quality of life. MalaCards+2
CMT type 5 is an axonal hereditary motor and sensory neuropathy. “Axonal” means the main problem is in the core of the nerve fiber (axon), not mainly in the insulating myelin. Because the condition is genetic, it is caused by changes (mutations) in certain genes and usually runs in families. In most families CMT type 5 is inherited in an autosomal dominant way, which means a change in just one copy of the gene from one parent is enough to cause disease. Rare X-linked forms linked to the PRPS1 gene are also described and may be labeled CMTX5.ScienceDirect+3NCBI+3MalaCards+3
Other names
CMT type 5 has several other medical names. Doctors and scientists may use any of these terms in reports or test results, but they describe the same core disorder:
Hereditary motor and sensory neuropathy type 5 (HMSN V)
Hereditary motor and sensory neuropathy with pyramidal features
Charcot-Marie-Tooth disease, pyramidal features syndrome
Hereditary sensory-motor neuropathy type V
HMSN 5 / HMSN V
These names reflect that the disease affects both motor and sensory nerves and adds pyramidal (upper motor neuron) signs.NCBI+2MalaCards+2
Types
Although all types share the same basic pattern (axonal CMT plus pyramidal signs), doctors sometimes divide CMT type 5 into smaller groups to describe inheritance pattern, age at onset, or extra features.NCBI+1
Autosomal dominant CMT type 5 (classic HMSN V) – This is the best-known form. It is passed from parent to child in an autosomal dominant way. People show slowly progressive weakness and wasting in the feet and legs, often with high-arched feet, and also show brisk reflexes, increased leg tone, and sometimes a spastic, stiff walk.NCBI+2Orpha+2
X-linked CMT type 5 (CMTX5) – In this form, the disease gene lies on the X chromosome (for example in the PRPS1 gene). It is usually seen in males and can include early-onset peripheral neuropathy, hearing loss, and optic nerve atrophy, along with pyramidal signs. Female carriers may be mildly affected.Orpha+1
Early-onset CMT type 5 – Some people develop symptoms in early childhood, such as delayed walking, frequent falls, and early foot deformities, together with stiff legs. These children often need braces or walking aids earlier in life.Orpha+2Brain Foundation+2
Later-onset / milder CMT type 5 – Other people develop symptoms in teenage years or adulthood, with slower progression and milder spasticity. They may remain able to walk independently for many years, though balance, speed, and endurance are often reduced.NCBI+2Mayo Clinic+2
Causes
Here “causes” means the main reasons and mechanisms inside the body that lead to CMT type 5.
MFN2 gene mutation – Many people with axonal CMT, including some labeled type 5, have mutations in the MFN2 gene. MFN2 controls mitochondrial fusion in nerve cells. When MFN2 does not work well, long axons in the legs and arms cannot keep a healthy energy supply, and they slowly degenerate, causing weakness and sensory loss.MalaCards+2Wikipedia+2
PRPS1 gene mutation (CMTX5) – In X-linked type 5, mutations in the PRPS1 gene disturb an enzyme needed to make important nucleotides (building blocks of DNA and energy molecules). This affects nerves in the ear, eye, and limbs, causing neuropathy, hearing loss, and optic atrophy.Orpha+1
Other rare CMT5-linked genes – Disease databases list several other genes linked to CMT type 5 or HMSN V. Each gene change disrupts key proteins in axons or supporting cells, leading to similar clinical pictures with pyramidal signs.MalaCards+1
Autosomal dominant inheritance – In many families, one changed copy of a CMT gene from an affected parent is enough to cause disease. Each child of an affected parent has a 50% chance to inherit the mutation. This inheritance pattern explains why several generations in one family may show similar walking problems.NCBI+2MedlinePlus+2
X-linked recessive inheritance – For CMTX5, the gene is on the X chromosome. Males with the mutation are usually affected because they have only one X. Females have two X chromosomes, so they may be unaffected or only mildly affected carriers, but can pass the mutation to daughters and sons.Orpha+2ScienceDirect+2
De novo (new) mutations – Sometimes a child has CMT type 5 even though both parents are normal. A new mutation can appear in the egg or sperm or very early after conception. Once present, that mutation can be passed to the next generation.Muscular Dystrophy New Zealand –+1
Axonal degeneration of motor nerves – The main structural cause is gradual damage and loss of the long motor axons that carry signals from the spinal cord to the leg and foot muscles. As these axons die back, muscles become weak and thin.NCBI+2Brain Foundation+2
Axonal degeneration of sensory nerves – Sensory axons carrying touch, vibration, and position sense from the feet and hands also degenerate. This leads to numbness, tingling, and poor joint position sense, which add to balance problems.NCBI+2MedlinePlus+2
Secondary myelin changes – Even though CMT type 5 is mainly axonal, damage to axons can also secondarily disturb the myelin sheath. This further slows nerve conduction and increases weakness and sensory loss.NCBI+1
Pyramidal tract involvement – In CMT type 5, some people show clear evidence of damage to the corticospinal (pyramidal) tracts in the brain and spinal cord. This damage causes brisk reflexes, spasticity, and a stiff gait on top of the peripheral neuropathy.NCBI+2MalaCards+2
Mitochondrial dysfunction in nerves – Many CMT genes, including MFN2, affect mitochondria, the “power plants” of the cell. When mitochondria in long axons cannot move properly or provide enough energy, the axon slowly fails and degenerates.MalaCards+2Wikipedia+2
Impaired axonal transport – Some gene defects disturb the transport of proteins and organelles along the axon. Over time this “traffic jam” leads to swelling and breakage of the nerve fiber, starting at the far end in the feet (“length-dependent neuropathy”).Wikipedia+1
Abnormal Schwann cell–axon interaction – Schwann cells support peripheral axons. In some forms of CMT, signals between Schwann cells and axons are abnormal. This can worsen axon damage and slow repair, even when the main problem is axonal.Wikipedia+1
Genetic modifier factors – Different people with the same main mutation may show different severity. Other genes can “modify” how strongly the disease appears, increasing or reducing nerve damage and pyramidal signs.NCBI+1
Length of the nerves – Longer nerves are more vulnerable. This is why symptoms usually start in the feet and lower legs. The extreme length makes these axons more sensitive to even mild genetic defects.NCBI+2Brain Foundation+2
Aging – As a person ages, natural wear on nerves combines with the genetic problem, and axons may degenerate faster. This can make symptoms more obvious in middle age even if early signs were mild.NCBI+2Mayo Clinic+2
Co-existing nerve stress (for example diabetes) – CMT type 5 is genetic, but other illnesses like diabetes, vitamin deficiency, or thyroid disease can add extra stress on nerves. When such conditions are present, they can worsen weakness and numbness, even though they are not the original cause.Mayo Clinic+2Brain Foundation+2
Physical stress on weak ankles and feet – Repeated sprains, deformities, or poor footwear do not cause CMT, but they can increase pain, fatigue, and disability in already weak feet and legs. This makes the inherited nerve damage more disabling.Mayo Clinic+1
Poor nerve regeneration capacity – Because of the genetic defect, damaged axons in CMT type 5 do not regrow and repair as well as normal nerves. Over many years, this leads to a gradual, permanent loss of nerve fibers.NCBI+2ScienceDirect+2
Family clustering and consanguinity – In some regions, marriages within small communities or between relatives can increase the chance that rare CMT mutations are shared and passed on, leading to more cases of hereditary neuropathy, including type 5.ScienceDirect+1
Symptoms
Symptoms of CMT type 5 are similar to other axonal CMT forms but with added pyramidal signs. They grow slowly over years. Not every person has every symptom, and severity can vary even inside one family.NCBI+2Orpha+2
Slowly progressive weakness in feet and lower legs – The earliest and most common sign is weakness in the muscles that lift and move the feet. People may find it hard to run, climb stairs, or stand on their heels. Over time the lower legs look thin.NCBI+2Orpha+2
Foot drop – Weakness of the muscles that lift the front of the foot causes the toes to drag. The person may trip often or lift the knees high in a “steppage gait” to avoid tripping.NCBI+2Mayo Clinic+2
High-arched feet (pes cavus) – Because some muscles are weak and others are relatively strong, the arch of the foot becomes very high. This can make shoes difficult to fit and may cause calluses and pain.NCBI+2Mayo Clinic+2
Hammertoes or claw toes – Toes may curl downward (hammertoes) or show a claw-like position. This is again due to muscle imbalance and can make walking painful or unstable.NCBI+2Wikipedia+2
Thin, “stork-like” lower legs – Loss of muscle bulk in the calves makes the lower legs appear very slim, while the thighs remain more normal. This classic look is often seen in CMT.NCBI+2Wikipedia+2
Difficulty walking and frequent falls – Weakness, foot drop, and deformities together cause an unsteady gait. People may walk slowly, need to watch the ground carefully, and fall easily, especially on uneven surfaces.NCBI+2Mayo Clinic+2
Numbness or reduced feeling in feet – Many people notice reduced ability to feel light touch, pain, or temperature in their toes and soles. This makes it easy to miss injuries or blisters.NCBI+2Mayo Clinic+2
Tingling, burning, or “pins and needles” – Damaged sensory nerves can cause unpleasant sensations in the feet or legs, such as tingling, buzzing, or burning pain, especially after long standing or at night.NCBI+2Mayo Clinic+2
Weakness in hands – With time, the disease may spread upward and affect the small muscles of the hands. People may have trouble buttoning clothes, opening jars, or writing for long periods.NCBI+2Mayo Clinic+2
Loss of fine hand skills – Tasks that need precise finger control, such as sewing, typing fast, or playing a musical instrument, can become difficult as strength and sensation in the fingers decline.NCBI+2Brain Foundation+2
Brisk reflexes in legs – Unlike many peripheral neuropathies that lower reflexes, CMT type 5 often shows very brisk knee and ankle reflexes because of pyramidal tract involvement. Doctors may notice this clearly even when weakness is mild.NCBI+2MalaCards+2
Stiff or spastic legs – Increased muscle tone from pyramidal tract damage can make legs feel stiff. Walking may look scissoring or stiff, and turning quickly may be hard. This spasticity combines with the neuropathy and makes walking more complex.NCBI+2MalaCards+2
Positive Babinski sign – When the doctor strokes the sole, the big toe may move upward instead of downward. This is called a positive Babinski sign and is an important clue that the pyramidal tracts are involved.NCBI+2MalaCards+2
Leg cramps and pain – Many people report painful cramps, especially at night or after walking. Pain may come from muscle fatigue, joint stress due to deformity, or nerve pain from damaged sensory fibers.MalaCards+2Brain Foundation+2
Fatigue and balance problems – Because walking needs extra effort and sensation in the feet is poor, people often feel tired after short distances and may have trouble keeping balance in the dark or on soft ground.NCBI+2Mayo Clinic+2
Diagnostic tests
Diagnosis of CMT type 5 usually needs a neurologist. The doctor combines clinical examination with electrical tests, genetic tests, and sometimes imaging. The main goal is to show a length-dependent axonal neuropathy with pyramidal signs and then find the exact gene change.NCBI+2NINDS+2
Physical examination tests
Full neurological examination of strength and reflexes – The doctor checks muscle strength in feet, legs, hands, and arms and tests tendon reflexes with a hammer. In CMT type 5, they usually find weakness in distal muscles and unusually brisk reflexes, especially in the legs.NCBI+2NCBI+2
Gait and posture analysis – The doctor watches how the person walks, turns, and runs. A high-stepping gait from foot drop, foot slap, or a stiff spastic walk suggests combined peripheral and pyramidal involvement, supporting the diagnosis of CMT type 5.NCBI+2Orpha+2
Foot and leg inspection – The shape of the feet and legs is examined for high arches, hammertoes, thin calves, and calluses. These classic CMT changes help separate hereditary neuropathy from other causes of weakness.NCBI+2Mayo Clinic+2
Spasticity and tone assessment – The doctor gently moves the legs and checks for increased resistance and “catch” typical of spasticity. Finding spasticity together with distal weakness and sensory loss strongly points to CMT type 5 rather than pure CMT type 2.NCBI+2MalaCards+2
Balance tests (Romberg and single-leg stance) – The person stands with feet together, first with eyes open and then closed, and may be asked to stand on one leg. Sway or loss of balance, especially when eyes are closed, suggests loss of joint position sense from sensory neuropathy.NCBI+2NINDS+2
Manual tests at the bedside
Manual muscle testing (MRC grading) – The clinician tests each major muscle group by hand and grades strength on a simple scale. This helps map which muscles are most affected and track change over time. Distal muscles in the feet and hands are usually weaker than proximal muscles.NCBI+2NINDS+2
Light-touch and pinprick sensation testing – Using cotton wool and a blunt pin, the doctor checks how well the person feels light touch and sharp versus dull sensations in toes, feet, legs, and hands. Reduced feeling in a “stocking-glove” pattern is typical of length-dependent neuropathy.NCBI+2MedlinePlus+2
Vibration sense with tuning fork – A vibrating tuning fork is placed on bony points such as the big toe and ankle. In CMT type 5, vibration sense often disappears first in the toes, showing involvement of large sensory fibers.NCBI+2NINDS+2
Joint position sense testing – The examiner gently moves the big toe or a finger up and down while the patient, eyes closed, says which way it moved. Difficulty answering correctly means impaired position sense, again supporting sensory axon damage.NCBI+2NINDS+2
Laboratory and pathological tests
Genetic testing panel for CMT genes – A blood sample is sent for DNA analysis of known CMT genes, including MFN2 and others linked to axonal neuropathy. Finding a disease-causing mutation confirms the diagnosis and helps with family counseling.NCBI+2MalaCards+2
Targeted PRPS1 gene sequencing – If the pattern suggests X-linked CMT type 5, especially in males with hearing loss or optic atrophy, the laboratory may perform focused sequencing of the PRPS1 gene to look for specific mutations.Orpha+2ScienceDirect+2
Extended gene panels or exome sequencing – When routine CMT panels are negative, broader next-generation sequencing of many neuropathy genes or even the whole exome can be used to search for rare or new variants causing HMSN V.NCBI+1
Routine blood tests to exclude other neuropathies – Tests for blood sugar, vitamin B12, folate, thyroid hormones, kidney and liver function, and autoimmune markers help rule out other treatable causes of neuropathy that might mimic or worsen hereditary CMT.Mayo Clinic+2Brain Foundation+2
Nerve biopsy (for example sural nerve) – In uncertain cases, a small piece of a sensory nerve from the ankle may be removed and studied under a microscope. In axonal CMT, the biopsy shows loss of axons with relative myelin preservation and can support the diagnosis when genetics are unclear. Because this test is invasive, it is used less often now that genetic testing is widely available.NCBI+2PubMed+2
Electrodiagnostic tests
Nerve conduction studies (NCS) – Small electrical pulses are given to nerves, and the response is recorded. In CMT type 5, conduction velocities are often near normal or only mildly slowed, but the amplitude (size) of responses is reduced, showing axonal loss. This pattern helps separate axonal CMT from demyelinating forms.NCBI+2NINDS+2
Electromyography (EMG) – A fine needle electrode is placed in selected muscles to record electrical activity. EMG in CMT type 5 shows signs of chronic denervation and reinnervation, confirming that weakness is due to a neuropathic, not muscle, disorder.NCBI+2PubMed+2
Somatosensory evoked potentials (SSEPs) – Mild electrical stimuli are applied to a nerve in the arm or leg while brain responses are recorded. Delayed or abnormal SSEPs can show involvement of central sensory pathways and may support pyramidal or central tract involvement in complex cases.NCBI+1
Imaging tests
MRI of brain and spinal cord – Magnetic resonance imaging can be used when pyramidal signs are marked. The main purpose is to rule out other causes of spasticity (such as spinal cord compression or multiple sclerosis) and to support that CMT type 5 is the best explanation when no other lesions are seen.NCBI+2MalaCards+2
MRI or ultrasound of peripheral nerves and muscles – High-resolution MRI or nerve ultrasound can sometimes show thinning of peripheral nerves or changes in muscles due to chronic denervation. These images can support the diagnosis and help in research, though they are not needed in all patients.NINDS+2Muscular Dystrophy New Zealand –+2
X-rays of feet, ankles, or spine – Simple X-rays can show bone changes from long-standing foot deformity, such as high arches, hammertoes, or joint misalignment, and may reveal spinal curvature. These findings help orthopedic planning but also document the structural impact of CMT over time.Mayo Clinic+2Brain Foundation+2
Non-pharmacological treatments (therapies and other supports)
These non-drug treatments are the base of care in CMT5. Most people need a mix of them over many years. PMC+2Journal of Health and Allied Sciences NU+2
Individual physical therapy for strength and balance
A physiotherapist designs safe exercises to make weak muscles stronger and protect joints. Training often includes leg and core strengthening, balance tasks, and walking practice. The goal is not to “cure” the nerve problem, but to help the body use the remaining nerve signals better. Over time this can improve walking distance, reduce falls, and keep you more independent.Gait training and walking pattern correction
Many people with CMT5 walk with “foot drop” and unsteady steps. A therapist watches your walking in detail and teaches you new patterns: lifting the foot higher, placing the heel first, and using arms for balance. Treadmill training or over-ground walking with visual cues can be used. This training helps your brain and muscles work together in a safer, more efficient way.Ankle-foot orthoses (AFOs)
AFOs are light braces worn inside shoes to hold the ankle at a safe angle. They reduce foot drop, stop the toes from catching on the ground, and support weak ankle muscles. Modern carbon-fiber AFOs can be thin and light, so they fit in normal shoes and still allow some ankle movement. Studies show they can improve balance and walking speed in CMT. The Foundation for Peripheral Neuropathy+2ResearchGate+2Custom shoes and insoles
High-arched feet and clawed toes are common in CMT5. Special shoes with a wide toe box, soft upper, and firm heel counter protect the foot and improve stability. Custom insoles support the arch and spread pressure more evenly. This reduces pain, corns, and calluses and lowers the risk of skin breakdown and ulcers on the feet.Night splints and stretching splints
Soft or semi-rigid splints can be worn at night to hold the ankle or toes in a more neutral position. This gentle, long stretch helps prevent fixed contractures (permanent shortening of muscles and tendons). It makes it easier to stand and walk in the morning and can reduce pain and stiffness.Home stretching and range-of-motion program
Daily simple stretches for calves, hamstrings, hips, and toes help keep joints moving freely. Movements can be done lying or sitting, often with straps or a helper. The aim is not to force movement but to keep comfortable flexibility. Regular stretching makes braces and shoes easier to use and reduces cramping and joint pain.Occupational therapy for hands and daily tasks
If hand weakness develops, an occupational therapist can teach easier ways to dress, write, use a computer, cook, and do school or work tasks. Simple tools like thick-grip pens, button hooks, and adapted keyboards can make daily life much less tiring. This support helps you stay independent and confident.Assistive walking devices (cane, crutches, walker)
Some people need a cane or walker, especially outdoors or on uneven ground. Using a device is not a failure; it is a safety tool. It widens your base of support, reduces the chance of falls, and lets you walk longer distances with less fear and less fatigue. A therapist can teach correct height and safe use.Balance and fall-prevention training
Specific balance exercises, like standing on different surfaces, turning safely, or practicing getting up from the floor, help your brain adapt to weak or numb feet. Training also includes learning how to arrange your home (good lighting, no loose rugs, grab bars) to avoid falls. This reduces fractures and serious injuries.Aquatic (water) therapy
Exercising in warm water gives gentle resistance and supports the body. This is especially helpful if walking on land is painful or unsafe. In the pool you can practice walking, leg lifting, and stretching with less risk of falling. It also reduces joint load and can improve mood, sleep, and overall fitness.Aerobic exercise (swimming, cycling, gentle walking)
Safe, regular aerobic exercise helps heart health, weight control, and stamina. Low-impact activities like swimming or cycling are usually better than running. The intensity should be checked by a therapist or doctor so you do not over-fatigue weak muscles. Over time, you can feel less tired in daily life.Pain-relief techniques without medicines
Heat packs, cold packs, gentle massage, and relaxation breathing can reduce mild pain and muscle tightness. Some people also use TENS (a small device that sends mild electrical pulses through the skin) under professional guidance. These methods help reduce the need for higher doses of pain medicines.Ergonomic changes at home, school, or work
Adjusting chair height, desk height, computer position, and the layout of tools can make life easier. For example, using a higher chair and grab bars for getting up, or placing frequently used items within easy reach. These small changes reduce strain on weak muscles and help you stay productive.Psychological counseling and mental health support
Living with a long-term nerve disease can cause sadness, anxiety, or anger. Speaking with a psychologist or counselor can provide coping tools, problem-solving strategies, and family support. Therapy can also help with body-image issues, fear of falling, and worries about the future or children.Genetic counseling for the family
A genetic counselor explains how CMT5 is inherited, what the chances are for children, and what testing options exist. They help families make informed decisions about planning a family, prenatal testing, or testing of relatives. This does not change the current disease, but it can reduce confusion and guilt.School and workplace accommodations
Students may need extra time for walking between classes, elevator access, or permission to sit during long activities. Workers may need flexible schedules, closer parking, or modified duties. Official accommodations can protect your job or school performance and reduce stress about keeping up.Nutritional counseling and weight management
Extra body weight puts more strain on weak leg muscles and joints. A dietitian can help design a balanced eating plan that keeps energy levels stable and supports a healthy weight. This can make walking easier and reduce pain in feet, knees, and hips.Respiratory and posture monitoring (in more severe cases)
Some people with CMT may develop posture problems or weakness in muscles that help breathing. Doctors may check lung function and spine alignment regularly. Early physical therapy, breathing exercises, and posture training help delay serious problems.Community support groups and online communities
Connecting with other people who have CMT can reduce feelings of isolation. Support groups let you share tips about braces, shoes, and coping, and can provide encouragement. They also help families learn what to expect and how to advocate for better care.Regular follow-up with a multidisciplinary clinic
The best care often comes from a team: neurologist, physiotherapist, occupational therapist, orthotist, orthopedic surgeon, and psychologist. Regular visits allow early detection of new problems, such as worsening deformity or mood changes, and timely changes in treatment.
Drug treatments for Charcot-Marie-Tooth disease type 5
Very important: there is no FDA-approved drug that cures CMT5 or stops it completely. Medicines are used to treat symptoms such as nerve pain, muscle stiffness, mood problems, and sleep issues. Many drugs below are approved by the FDA for chronic neuropathic pain or related conditions, not specifically for CMT, and are sometimes used “off-label” under specialist care. Information about them comes from FDA prescribing information for neuropathic pain and seizures. FDA Access Data+9FDA Access Data+9FDA Access Data+9
For all drugs below: doses and timing are examples from adult labels for neuropathic pain. They must be adjusted by a doctor based on age, kidney function, and other medicines. Children and teens especially need pediatric dosing from their own specialist. Never copy a dose from the internet.
Gabapentin (Neurontin, Gralise, Horizant)
Gabapentin is an anti-seizure medicine that also treats neuropathic pain. It calms overactive nerve signals in the spinal cord and brain. Doctors usually start with a low oral dose once or several times a day and slowly increase until pain improves or side effects appear. Common side effects include sleepiness, dizziness, and swelling of legs. It does not fix nerve damage but can reduce burning or shooting pain.Pregabalin (Lyrica, Lyrica CR)
Pregabalin is related to gabapentin and is FDA-approved for several neuropathic pain conditions. It reduces the release of certain chemical messengers in nerve endings. Dosing is usually two or three times daily with gradual increases under a doctor’s guidance. Typical side effects are dizziness, sleepiness, weight gain, and swelling. It can improve pain and sleep in people with chronic nerve pain, including those with CMT-related neuropathy.Duloxetine (Cymbalta)
Duloxetine is an antidepressant in the SNRI class that also treats diabetic nerve pain. It increases serotonin and norepinephrine in the brain and spinal cord, which can reduce pain signals and improve mood. It is usually taken once daily. Side effects may include nausea, dry mouth, sleep changes, and increased sweating. It is especially helpful when a person has both neuropathic pain and depression or anxiety.Amitriptyline
Amitriptyline is an older antidepressant (tricyclic) often used at low doses at night to help with nerve pain and sleep. It blocks reuptake of serotonin and norepinephrine and also calms certain pain pathways. Doctors usually start with a very low bedtime dose and increase slowly. Side effects can include dry mouth, constipation, sleepiness, and sometimes heart rhythm changes, so monitoring is important.Nortriptyline
Nortriptyline is another tricyclic antidepressant that may have fewer sedating side effects than amitriptyline in some people. It is also used at low doses for neuropathic pain. It is usually taken once or twice daily. Side effects are similar: dry mouth, constipation, possible dizziness, and heart rhythm changes, so heart history must be checked.Carbamazepine
Carbamazepine is an anti-seizure medicine famous for treating nerve pain such as trigeminal neuralgia. It stabilizes overactive nerve membranes and reduces sudden pain bursts. It is taken several times a day with slow dose increases. Side effects can include dizziness, sleepiness, low sodium, and rare but serious blood or liver problems, so regular blood tests are needed.Oxcarbazepine
Oxcarbazepine is related to carbamazepine but may have a somewhat different side-effect profile. It also stabilizes nerve membranes and reduces abnormal firing. It can help some people with chronic neuropathic pain. It is taken once or twice daily. Side effects may include dizziness, tiredness, low sodium, and allergic rashes, so it must be used under medical supervision.Topical lidocaine patch (5%)
Lidocaine patches are placed on areas of localized nerve pain. They numb the skin and nearby small nerve fibers without major effects on the whole body. The patch is usually applied for several hours per day, following the product instructions. Side effects are usually mild skin redness or irritation. This is helpful for people with small areas of intense burning pain.High-strength capsaicin patch (clinic-applied)
Capsaicin 8% patches are applied in a clinic for a set time to areas of nerve pain. Capsaicin overstimulates and then temporarily quiets pain-sending nerve endings in the skin. The application itself can sting or burn, so it is done by trained staff. Pain relief may last weeks to months. Side effects mainly involve local burning and redness.NSAIDs (for musculoskeletal pain)
Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen or naproxen do not treat nerve damage but can reduce joint and muscle pain from abnormal walking or deformity. They are usually taken with food, at the lowest effective dose for the shortest time. Side effects can include stomach irritation, kidney strain, and increased bleeding risk, especially at higher doses or long-term use.Acetaminophen (paracetamol)
Acetaminophen is often used for mild to moderate musculoskeletal pain or headaches related to posture strain. It does not reduce inflammation but can reduce the feeling of pain. It is usually taken every several hours, staying under a daily maximum set by guidelines. The main risk at high doses is liver damage, so total daily intake must be carefully tracked.Baclofen
Baclofen is a muscle relaxant used for spasticity. It acts on GABA receptors in the spinal cord to reduce muscle tone and spasms. Doctors start with small doses several times a day and increase slowly. Side effects include sleepiness, weakness, and sometimes low blood pressure. Sudden stopping can cause withdrawal symptoms, so it must be reduced slowly under a doctor’s guidance.Tizanidine
Tizanidine is another muscle relaxant for spasticity. It reduces nerve signals from the brain to overactive muscles. It is taken several times per day. Common side effects include sleepiness, dry mouth, and low blood pressure. Liver tests are often checked because rare liver injury can occur. It can help reduce painful stiffness and improve ease of movement.Botulinum toxin injections
Botox-type injections can be used into specific tight muscles, such as calf muscles causing toe-walking, to temporarily reduce spasticity. The toxin blocks nerve messages to those muscles for several months. This can improve foot position and make bracing easier. Side effects are usually local weakness in the injected muscle and bruising; serious effects are rare when done by experts.Tramadol (with great caution)
Tramadol is a weak opioid-like pain medicine sometimes used for severe pain that does not respond to other drugs. It acts on opioid receptors and also on serotonin and norepinephrine pathways. It can cause nausea, dizziness, sleepiness, constipation, and in high doses or with other drugs, seizures or breathing problems. Because of dependence and overdose risks, it should only be used short-term and under strict medical supervision.Short-term stronger opioids (only in special cases)
In some extreme situations, stronger opioids may be used briefly, for example after major orthopedic surgery. They act on brain opioid receptors to reduce the perception of pain. Because of high risk of dependence, overdose, constipation, and breathing problems, they are not a long-term solution for CMT pain and must be tightly controlled by pain specialists.Sertraline (example SSRI for depression/anxiety)
Sertraline is an SSRI antidepressant used when someone with CMT5 develops significant depression or anxiety. It helps balance serotonin in the brain and can improve mood and coping. It is usually taken once daily. Side effects may include nausea, sleep changes, sexual side effects, or increased anxiety at first. Better mood can indirectly improve pain and quality of life.Low-dose clonazepam (in selected cases)
Clonazepam is a benzodiazepine sometimes used for severe muscle cramps, anxiety, or sleep problems. It calms brain activity but can cause strong drowsiness, dependence, and withdrawal problems. It should only be used at the lowest effective dose and for the shortest time, if other options fail, and always under close medical follow-up.Melatonin (for sleep support)
Melatonin is a hormone supplement that helps regulate sleep-wake cycles. It can be useful when chronic pain and anxiety make sleep difficult. A low dose is usually taken in the evening. Side effects are usually mild, such as morning grogginess or vivid dreams. Good sleep can reduce daytime fatigue and improve coping with symptoms.Vitamin D prescription doses (for deficiency)
If blood tests show low vitamin D, doctors may prescribe higher doses for a time. Vitamin D helps bone health and muscle function. Correcting deficiency can reduce bone pain and fracture risk in people who walk poorly or fall often. Too much vitamin D can be harmful, so dosing and monitoring must be done by a clinician, not by guessing.
Dietary molecular supplements
Evidence for supplements in CMT5 is limited. They may support overall nerve and muscle health but do not replace genetic and rehabilitation care. Always ask a doctor or dietitian before starting any supplement, especially in children or if you already take other medicines.
Vitamin B12
Vitamin B12 is important for healthy myelin, the protective covering around nerves. Low levels can cause or worsen neuropathy. If a blood test shows deficiency, doctors may give tablets or injections to restore normal levels. Adequate B12 helps nerve repair processes work as well as they can. Very high doses without deficiency are usually not helpful and may be expensive.Vitamin B1 (thiamine)
Thiamine helps nerves use sugar for energy and supports normal nerve conduction. Severe deficiency can cause neuropathy and muscle weakness. In people with poor diet or alcohol use, doctors may recommend thiamine tablets or injections. The goal is to correct deficiency and support energy production in nerves. Extremely high doses are usually not needed unless guided by a specialist.Vitamin B6 (with strict dose control)
Vitamin B6 is needed for many enzyme reactions in nerves. However, high doses over time can actually cause neuropathy. If blood levels are low, a doctor may prescribe a moderate supplement dose. The aim is normal, not high, levels. People with CMT should never self-prescribe large B6 doses, because this could worsen nerve symptoms.Vitamin C (ascorbic acid)
Vitamin C is an antioxidant and is involved in collagen and myelin formation. It has been studied in CMT1A, with mixed results, and is sometimes used at moderate doses as part of general health support. It may help reduce oxidative stress. Too much vitamin C can cause stomach upset and kidney stones in some people, so dosing should be reasonable.Vitamin D (nutritional doses)
Beyond prescription correction of deficiency, a daily maintenance vitamin D dose may be advised to keep levels in the normal range. This supports bone strength and immune function. Adequate vitamin D is important in people with limited mobility, who are at higher risk of osteoporosis and fractures. Blood levels should be monitored to avoid both deficiency and excess.Omega-3 fatty acids (fish oil, algae oil)
Omega-3 fats from fish or algae oil have anti-inflammatory and possible neuroprotective effects. They may help reduce general inflammation and support cell membranes in nerves and muscles. Usual supplemental doses are taken with food. Side effects can include fishy after-taste and, in high doses, a slightly higher bleeding tendency, so medical advice is important, especially if you use blood thinners.Alpha-lipoic acid
Alpha-lipoic acid is an antioxidant that has been studied in diabetic neuropathy. It may help reduce oxidative stress in nerves and improve pain in some people. Capsules are usually taken once or twice daily. Possible side effects include stomach upset and low blood sugar in people with diabetes. Evidence in CMT is limited, so it should be used only with medical supervision.Coenzyme Q10 (CoQ10)
CoQ10 is involved in mitochondrial energy production. Some hereditary nerve and muscle diseases affecting mitochondria can benefit from it, and it may support energy in nerve cells. It is taken in capsule form with meals. Side effects are usually mild, such as stomach upset. Large doses can interact with blood thinners, so a doctor should check for interactions.L-carnitine
L-carnitine helps transport fatty acids into mitochondria to be used for energy. In some metabolic disorders, supplementation can improve muscle function. In CMT, evidence is limited, but it may help fatigue in select cases. Typical dosing and purity should be guided by a physician. Side effects can include fishy body odor or stomach upset.Curcumin (from turmeric)
Curcumin is an anti-inflammatory compound found in turmeric. It may help reduce general inflammation and oxidative stress. It is taken as capsules with food to improve absorption. Side effects can include stomach upset and, in high doses, risk of bleeding in people using blood thinners. It should be considered an add-on for comfort, not a cure for CMT5.
Regenerative, immune-related, and stem-cell-type approaches
At present, there is no widely approved stem cell or gene therapy for CMT5. Many approaches are in research stages. Any “regenerative” or immune-related treatment must be done only inside proper clinical trials or under strict specialist guidance.
Experimental gene-therapy products
Researchers are exploring gene therapies that deliver a healthy copy of the faulty gene or silence over-active genes. These treatments use viral vectors or other delivery systems. They aim to correct the underlying genetic cause. So far, they are only available in carefully controlled studies, and long-term safety and benefit are still being studied.Small-molecule disease-modifying drugs in trials
Some medicines are being tested to change how nerve cells handle certain proteins or to improve mitochondrial function. For example, combinations like PXT3003 have been studied in CMT1A. These drugs aim to slow progression, not just treat symptoms. They are not yet routine care and should only be taken in clinical trials directed by expert centers.Neurotrophic factor therapies
Neurotrophic factors are natural proteins that help nerves grow and survive. Scientists are trying to deliver them or stimulate the body to make more. The goal is to protect nerve fibers and encourage regrowth. However, delivering these factors safely and effectively to peripheral nerves is complex, so this area is still experimental.Cell-based therapies (experimental stem cell infusions)
Some research looks at using stem cells to support damaged nerves, for example by releasing helpful growth factors. This may involve bone-marrow-derived or other stem cells. So far, evidence is limited and mixed. Commercial clinics offering expensive “stem cell cures” without solid proof should be avoided. True treatments must come from regulated clinical trials.Immune-modulating treatment in unusual mixed cases
If a person with genetic CMT also develops an autoimmune neuropathy, doctors may use immune treatments such as intravenous immunoglobulin (IVIG) or steroids. These are not standard for pure CMT5, but may be used in mixed or unclear cases. They aim to calm the immune attack on nerves. Side effects and costs are significant, so careful diagnosis is essential.Neuroprotective drug strategies
Some commonly used medicines, like certain antioxidants or mitochondrial-supporting drugs, are being studied as general “neuroprotective” agents. They may help nerves tolerate damage better. At present, data for CMT5 are limited, so these drugs are considered supportive, not curative. Any use should be guided by a neurologist familiar with the research.
Surgeries used in Charcot-Marie-Tooth disease type 5
Soft tissue surgery for toes and plantar fascia
In early deformity, surgeons may release tight tendons or the plantar fascia (the band under the foot) and correct clawed toes. This can reduce pain from pressure points and make shoe fitting and bracing easier. It is usually done when conservative care is not enough and deformity is still somewhat flexible.Tendon transfer procedures
In tendon transfer surgery, a tendon from a stronger muscle is moved to help a weaker one, such as lifting the foot. For example, a working tendon may be moved to support ankle dorsiflexion and improve foot clearance during walking. The aim is to rebalance forces in the foot and ankle, reduce deformity, and improve walking safety.Bone osteotomy to correct foot shape
If foot deformity becomes rigid, surgeons may cut and realign bones of the foot (osteotomy). Plates, screws, or wires hold the new shape while it heals. This can correct high arches and twisted foot positions. The goal is a plantigrade (flat) foot that fits better in shoes and braces and reduces pain and ulcers.Ankle fusion (arthrodesis) in severe instability
When the ankle joint is severely unstable or painful and cannot be corrected by other surgeries, fusion may be done. The surgeon joins the bones so the joint no longer moves. This sacrifices motion but provides a stable platform for walking and bracing. It is usually a last resort for severe deformity and pain.Spinal surgery for severe scoliosis or deformity
Some people with severe long-term nerve and muscle problems develop spinal curves or posture deformities. If bracing and therapy fail, spinal fusion or other spine surgeries may be considered. The goals are to protect lung function, reduce pain, and improve sitting and standing posture. These decisions are complex and made by experienced spinal surgeons.
Prevention and protection strategies
CMT5 is genetic, so you cannot fully prevent it. But you can prevent many complications and slow some problems:
Avoid drugs known to be toxic to peripheral nerves (for example, some chemotherapy drugs and certain antibiotics), unless absolutely needed and carefully supervised.
Protect your feet with well-fitting shoes, daily inspection, and prompt treatment of blisters or wounds.
Keep physically active with safe, low-impact exercise to maintain strength, flexibility, and heart health.
Maintain a healthy body weight to reduce stress on weak legs and joints.
Make your home safer: remove loose rugs, improve lighting, and add grab bars or handrails where needed.
Use braces and walking aids as recommended, instead of avoiding them due to embarrassment.
Treat pain, depression, and anxiety early so they do not reduce activity and social contact.
Stay up to date with vaccinations and infection prevention, especially if mobility is reduced.
Work with your doctor to monitor bones, vitamin levels, and heart and lung function when indicated.
Seek genetic counseling before planning a pregnancy if you or your partner have CMT.
When to see a doctor
You should see a doctor (preferably a neurologist) or take your child to one if:
You notice new or worsening weakness, especially in the feet, legs, or hands.
Walking becomes more unsafe, you start tripping or falling more often, or you need to hold walls or furniture.
Pain becomes constant, severe, or does not respond to usual medicines.
You see ulcers, wounds, or color changes on the feet that do not heal.
You develop breathing trouble, frequent chest infections, or changes in voice or swallowing.
Mood changes, depression, or anxiety start to affect school, work, or relationships.
You are planning a pregnancy and want to know the risk to children.
In emergencies—sudden severe weakness, trouble breathing, chest pain, or serious injury from a fall—go to an emergency department immediately.
What to eat and what to avoid
Food cannot cure CMT5, but a healthy pattern supports muscles, nerves, bones, and energy.
Helpful to eat (examples)
Plenty of vegetables and fruits of different colors for vitamins, minerals, and antioxidants.
Lean proteins such as fish, chicken, beans, lentils, eggs, and tofu to support muscles and repair.
Whole grains like brown rice, oats, and whole-wheat bread for steady energy and fiber.
Healthy fats from nuts, seeds, avocados, and olive or canola oil to support cell membranes.
Calcium-rich foods such as milk, yogurt, cheese, or fortified plant milks for bone strength.
Better to limit or avoid (examples)
Sugary drinks, sweets, and refined carbohydrates that cause weight gain and blood sugar spikes.
Deep-fried and fast foods high in unhealthy fats that can increase inflammation and weight.
Heavy alcohol intake, which can damage nerves further and weaken muscles and bones.
Very high vitamin or herbal supplement doses without a doctor’s advice, especially vitamin B6.
Smoking or vaping, which reduces blood flow to nerves and muscles and slows healing.
A dietitian can personalize these ideas based on age, weight, other illnesses, and culture.
Frequently asked questions (FAQs)
Is Charcot-Marie-Tooth disease type 5 curable?
No, CMT5 is not curable yet. It is caused by genetic changes in nerve cells. Current treatments focus on making life easier and safer: improving walking, reducing pain, and protecting joints and feet. Research on gene and stem cell therapies is ongoing, but these are not standard care yet.Does exercise make CMT5 worse?
Too much or unsafe exercise can strain weak muscles and cause injury. But well-planned, low-impact exercise supervised by a therapist usually helps, not harms. It can improve strength, endurance, and mood. The key is a program tailored to your abilities, with rest breaks and close attention to pain and fatigue.Can children with CMT5 go to regular school?
Yes, most children with CMT5 can attend regular school. They may need adjustments such as more time to move between classes, elevator access, or permission to use a walker or wheelchair for longer distances. Teachers and classmates should understand that the child is not “lazy”; they simply have weak nerves and muscles.Will CMT5 shorten life expectancy?
For many people, life span is near normal, especially with good care, fall prevention, and monitoring of other health problems. The main issues are disability, pain, and social or emotional impact. Early support, safe exercise, and foot care help maintain independence and quality of life.Can CMT5 affect the hands too, or only the feet?
CMT5 usually starts in the feet and legs, but over time the hands can also become weak and thin. This may cause difficulty with buttons, handwriting, or fine tasks. Occupational therapy, hand exercises, and adapted tools can help keep hand function as strong as possible.How is CMT5 different from other types of CMT?
CMT5 is one of many subtypes of CMT. It often has prominent leg weakness and may include spasticity (stiffness) in the legs. Other types may have more sensory loss, visual problems, or hearing loss. The exact gene involved and the pattern of nerve damage can differ, which is why genetic testing can be useful. Muscular Dystrophy Association+1Can pregnancy make CMT5 worse?
Some women notice more fatigue and temporary worsening of symptoms during pregnancy because of weight gain and fluid changes, but others do not see major changes. Planning pregnancy with a neurologist and obstetrician is important. They can watch for increased falls, pain, and the need for braces or support. Genetic counseling can explain risks to the baby.Should everyone with CMT5 have genetic testing?
Genetic testing can confirm the diagnosis and show the exact gene change. This can help with family planning and sometimes with entry into clinical trials. The decision depends on cost, access, and family wishes. A genetic counselor can explain pros and cons and help you decide.Can diet or supplements cure CMT5?
No diet or supplement can fix the underlying gene change. However, a balanced diet and correction of vitamin deficiencies support overall health and may help you cope better with symptoms. Supplements should be seen as helpers, not cures, and should always be used under medical guidance.Is it safe to travel if I have CMT5?
Yes, many people with CMT travel. You may need to plan extra time for walking, request wheelchair assistance at airports, and choose hotels with elevators or accessible bathrooms. Bringing braces, spare shoes, and medicines in hand luggage is important. Good planning reduces stress and fatigue.Will my children definitely have CMT5?
It depends on the specific inheritance pattern of your gene change. Some forms are autosomal dominant (each child has about a 50% chance), others recessive or X-linked. Genetic counseling and testing of the affected person can define the risk more clearly and guide family planning decisions.Can I play sports if I have CMT5?
Many people can do non-contact, low-impact sports like swimming, cycling, or table tennis. High-impact or contact sports with a high risk of falls or ankle injuries may not be safe, especially without braces. A physiotherapist can help you choose activities that are fun but still safe for your level of strength and balance.How often should I see my neurologist?
This depends on how fast your symptoms are changing. Many people are seen once or twice a year, with more frequent visits during periods of rapid change, after surgery, or when new problems appear. Regular visits allow early adjustments of braces, therapies, and medicines before problems become severe.Is CMT5 the same as muscular dystrophy?
No. CMT5 is a neuropathy, meaning the main problem is in the peripheral nerves, not in the muscle itself. Muscular dystrophies are diseases where the muscle fibers themselves are abnormal. The two groups share symptoms like weakness and thin muscles, but their causes and treatments differ.Where can I find reliable information and support?
Reliable sources include national neuromuscular disease associations, hospital neurology clinics, and reputable rare disease organizations and registries. They often provide leaflets, online articles, and support groups specifically for CMT. Your neurologist or genetic counselor can suggest trustworthy websites and local resources. National Organization for Rare Disorders+2PMC+2
Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, geological location, weather and previous medical history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. Regular check-ups and awareness can help to manage and prevent complications associated with these diseases conditions. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. We always try to ensure that the content is regularly updated to reflect the latest medical research and treatment options. Thank you for giving your valuable time to read the article.
The article is written by Team RxHarun and reviewed by the Rx Editorial Board Members
Last Updated: December 31, 2025.
