Chemotherapy-Induced Peripheral Neuropathy (CIPN)

Understanding Peripheral Neuropathy

Chemotherapy-induced peripheral neuropathy (CIPN) is damage to the peripheral nerves caused by certain chemotherapy drugs. These nerves carry messages between the central nervous system and the rest of your body.

Types of Nerves Affected

• Sensory nerves: Control sensation (most commonly affected)
  • Touch, temperature, pain perception
  • Position sense (proprioception)
  • Vibration sense
• Motor nerves: Control muscle movement
  • Muscle strength
  • Coordination
  • Balance
• Autonomic nerves: Control automatic functions
  • Blood pressure
  • Digestion
  • Bladder function

Pattern of CIPN

• "Stocking-glove" distribution: Starts in toes/fingers, progresses upward
• Symmetrical: Usually affects both sides equally
• Length-dependent: Longest nerves affected first (feet before hands)
• Dose-dependent: Risk increases with cumulative dose

Signs and Symptoms

Special Considerations

• Acute neuropathy: During infusion (especially oxaliplatin)
  • Cold sensitivity
  • Throat discomfort
  • Jaw spasms
• Chronic neuropathy: Develops over time with treatment
• Coasting: Symptoms may worsen 2-6 months after stopping treatment

Causes and Risk Factors

High-Risk Chemotherapy Drugs

Risk Factors

• Pre-existing conditions:
  • Diabetes
  • Alcohol use disorder
  • Vitamin deficiencies (B12, B6, folate)
  • Thyroid disease
  • HIV
  • Previous neuropathy
• Treatment factors:
  • Higher cumulative doses
  • Combination chemotherapy
  • Previous neurotoxic chemotherapy
  • Concurrent radiation
• Patient factors:
  • Older age
  • Genetic variations
  • Poor nutritional status

Assessment and Grading

Assessment Tools

• Patient questionnaires: FACT/GOG-Ntx, EORTC QLQ-CIPN20
• Physical examination:
  • Vibration sense (tuning fork)
  • Light touch (monofilament)
  • Temperature discrimination
  • Deep tendon reflexes
  • Muscle strength testing
  • Balance assessment
• Functional tests: Timed up and go, 6-minute walk

Prevention Strategies

Medications Under Investigation

Currently, no medications are proven to prevent CIPN. The following have been studied:

• Calcium/magnesium (mixed results)
• Glutathione (limited evidence)
• Vitamin E (not recommended)
• Glutamine (insufficient evidence)
• Antioxidants (may interfere with treatment)

What NOT to Do

• Don't take supplements without oncologist approval
• Avoid vitamin B6 in high doses (can worsen neuropathy)
• Don't ignore early symptoms

Treatment Options

Medications for CIPN

First-Line Medications

• Duloxetine (Cymbalta):
  • Only FDA-approved for CIPN
  • 30-60 mg daily
  • SNRI antidepressant

Other Commonly Used Medications

• Gabapentin (Neurontin): 300-3600 mg/day in divided doses
• Pregabalin (Lyrica): 75-300 mg twice daily
• Tricyclic antidepressants:
  • Amitriptyline 10-75 mg at bedtime
  • Nortriptyline 10-75 mg at bedtime
• Venlafaxine (Effexor): 37.5-225 mg daily

Topical Treatments

• Capsaicin cream 0.025-0.075%
• Lidocaine patches or gel 5%
• Menthol-containing creams
• Compounded creams (ketamine/amitriptyline/baclofen)

For Specific Symptoms

• Muscle cramps: Baclofen, magnesium
• Shooting pains: Carbamazepine, oxcarbazepine
• Severe pain: Tramadol, opioids (last resort)

Safety Measures

Temperature Precautions

• Test water temperature with unaffected body part
• Use thermometer for bath water
• Wear gloves when handling frozen items
• Avoid extreme temperatures
• Be cautious with heating pads

Injury Prevention

• Check feet daily for cuts/sores
• Wear protective footwear at all times
• Use gloves for household tasks
• Be extra careful with sharp objects
• Trim nails carefully (consider podiatrist)

Managing Neuropathy in Fingers and Toes

Most CIPN starts at the tips of the fingers and toes and spreads upward in a “glove and stocking” pattern. These practical steps help you stay safe and keep doing everyday tasks.

Fingers and Hands

• Protect from heat and cold: numb fingers cannot judge temperature. Use oven gloves, test water with your elbow or a thermometer, and wear gloves to handle frozen food.
• On oxaliplatin: cold often triggers tingling, cramping or throat tightness for several days after each infusion. Avoid cold drinks and ice, wear gloves outdoors and when opening the fridge, and cover your nose and mouth in cold air.
• Make grip easier: chunky-handled cutlery and pens, electric can openers, pump bottles, and clothing with Velcro or magnetic fastenings instead of small buttons.
• Use your eyes: watch what your hands are doing when using knives or tools, because you may not feel a slip.
• Gentle exercises: squeezing a soft ball, finger stretches and occupational therapy can help keep dexterity.

Toes and Feet

• Check your feet every day for cuts, blisters, redness or swelling, using a mirror if needed. Numb feet can be injured without pain, and wounds can become infected, especially if your neutrophils are low.
• Wear well-fitting, closed shoes with firm, non-slip soles indoors and out. Avoid walking barefoot, loose slippers and high heels.
• Keep skin moisturised but dry between the toes, and see a podiatrist for nail trimming if you cannot feel your toes well.
• Avoid hot water bottles and heating pads on numb feet.

Preventing Falls With Neuropathy

Numb feet send less information to the brain about where the ground is, which affects balance, particularly in the dark or on uneven surfaces. Falls are a recognised risk with CIPN, and they matter more if your bones have been weakened by cancer treatment — see bone health during cancer treatment.

• Ask for a balance assessment and a referral to physical therapy. Balance, strength and gait training are among the best-supported ways to reduce falls.
• Light the way: night lights between bedroom and bathroom, and a lamp you can reach from bed. Numb feet rely heavily on vision.
• Get up slowly: sit on the edge of the bed for a moment before standing, especially at night or if you feel lightheaded.
• Look at the ground when walking on uneven surfaces, kerbs and stairs, and always use handrails.
• Use a mobility aid if advised: a cane or walker fitted by a therapist is safer than furniture-walking.
• Review your medicines: some drugs used for nerve pain, sleep or anxiety (such as gabapentin, pregabalin and sedatives) can cause dizziness or drowsiness.
• Report any fall to your team, even if you were not hurt, and seek urgent care for a head injury, especially if your platelets are low.

Daily Living Adaptations

Kitchen and Eating

• Use lightweight, non-breakable dishes
• Built-up handles on utensils
• Non-slip placemats
• Electric can openers
• Rocker knives for cutting
• Cups with lids and straws

Dressing and Grooming

• Velcro fasteners instead of buttons
• Elastic shoelaces
• Long-handled shoehorn
• Button hooks
• Electric toothbrush/razor
• Shower brush with long handle

Work and Hobbies

• Ergonomic keyboard and mouse
• Voice recognition software
• Pencil grips
• Book stands
• Magnifying glass with light
• Modified tools for hobbies

Mobility

• Well-fitting, supportive shoes
• Orthotic inserts
• Walking stick or cane
• Consider handicap parking permit
• Plan rest breaks during activities

When to Contact Your Healthcare Team

Schedule Appointment For:

• New or worsening symptoms
• Symptoms interfering with daily activities
• Need for assistive devices
• Medication side effects
• Questions about dose modifications
• Referrals to specialists

Document and Report

• Keep symptom diary
• Rate pain/numbness daily (0-10)
• Note activities affected
• Track medication effectiveness
• Record any falls or injuries

Recovery and Prognosis

Factors Affecting Recovery

• Favorable:
  • Younger age
  • Good overall health
  • Early recognition and management
  • Lower cumulative doses
  • Prompt dose modification
• Less favorable:
  • Pre-existing neuropathy
  • Diabetes or other risk factors
  • High cumulative doses
  • Severe symptoms (Grade 3-4)

Long-term Outlook

• A large review of studies (Seretny and colleagues, 2014) found CIPN in about 68% of people in the first month after chemotherapy, 60% at three months, and 30% at six months or later
• Many people improve gradually, but a minority have symptoms that persist long term
• Recovery can continue for years
• Adaptation improves function over time

Resources and Support

Healthcare Team

• Oncologist: Dose modifications, overall management
• Neurologist: Specialized neuropathy care
• Physiatrist: Rehabilitation medicine
• Physical therapist: Mobility and balance
• Occupational therapist: Daily living skills
• Pain specialist: Complex pain management
• Podiatrist: Foot care

Support Services

• Neuropathy support groups
• Online communities
• Patient education programs
• Vocational rehabilitation
• Home health services

Financial Resources

• Disability benefits information
• Equipment loan programs
• Prescription assistance programs
• Transportation services

Frequently Asked Questions

How do you manage chemo neuropathy in your fingers and toes?

Report it early so your oncologist can consider adjusting the dose. Day to day, protect numb fingers and toes from heat, cold and injury, check your feet daily, wear supportive closed shoes, use adapted tools for grip, and ask about physical and occupational therapy. Duloxetine may help if the neuropathy is painful.

Does chemo-induced neuropathy go away?

Often it improves, but slowly. Symptoms can keep worsening for a few weeks to months after treatment ends (called coasting, especially with oxaliplatin and cisplatin), then gradually improve over months to a year or more. In a large review, about 30% of people still had symptoms six months or more after chemotherapy, and some have permanent changes.

How can I prevent falls when I have neuropathy in my feet?

Ask for a balance assessment and physical therapy, wear firm, non-slip closed shoes, use night lights and handrails, get up slowly, look at the ground on uneven surfaces, and use a walking aid if one is recommended. Review medicines that cause drowsiness with your team, and report any fall.

What medicine helps chemotherapy neuropathy?

Duloxetine is the medicine with the best evidence for painful CIPN and is the one recommended by ASCO guidelines. Gabapentin, pregabalin, some antidepressants and topical treatments are sometimes tried, though evidence is weaker. No medicine has been proven to prevent CIPN, and supplements should be checked with your oncologist first.

Should I tell my oncologist about mild tingling?

Yes. Mild tingling is often the first sign, and reporting it early lets your team decide whether to reduce, delay or change the drug before nerve damage becomes more severe or permanent. Mention trouble with buttons, writing, dropping things, or feeling unsteady on your feet.

Why does cold make my tingling worse after oxaliplatin?

Oxaliplatin causes a short-term, cold-triggered nerve reaction in most people who receive it. For a few days after each infusion, touching cold objects or having cold drinks can cause tingling, cramps or a feeling of throat tightness. Avoiding cold and wearing gloves usually helps; it is separate from the longer-term numbness that can build up over cycles.

Related Topics

References

1. Loprinzi CL, et al. Prevention and Management of Chemotherapy-Induced Peripheral Neuropathy in Survivors of Adult Cancers. ASCO Guideline Update. J Clin Oncol. 2020.
2. National Cancer Institute. Peripheral Neuropathy (PDQ) - Health Professional Version. 2026.
3. Seretny M, et al. Incidence, prevalence, and predictors of chemotherapy-induced peripheral neuropathy: a systematic review and meta-analysis. Pain. 2014.
4. NCCN Guidelines. Survivorship: Neuropathy. Version 1.2026.