Why is this medication prescribed?

Darzalex (daratumumab) is a medication primarily prescribed for the treatment of multiple myeloma, a type of cancer that affects plasma cells in the bone marrow. It’s used in various stages of the disease, either alone or in combination with other medications.

Darzalex works by targeting a protein called CD38, which is found in high levels on the surface of myeloma cells. By binding to CD38, Darzalex helps the immune system to identify and attack the cancer cells, thereby slowing down the progression of the disease.

How should this medicine be used?

Darzalex (daratumumab) is typically administered intravenously (IV) by a healthcare professional in a medical setting such as a hospital or clinic. Here’s a general overview of how Darzalex is typically used:

• Preparation: Before receiving Darzalex, the healthcare provider will assess the patient’s health and ensure they are ready for the treatment. This may involve checking vital signs, reviewing medical history, and conducting any necessary laboratory tests.
• Administration: Darzalex is administered as an intravenous infusion, which means it is delivered directly into a vein through a needle or catheter. The infusion is usually given over a period of several hours, with the patient sitting or lying comfortably during the process.
• Dosage: The dosage of Darzalex can vary depending on factors such as the stage of multiple myeloma, other medications being used in combination, and the patient’s overall health condition. The healthcare provider will determine the appropriate dosage for each individual patient based on these factors.
• Frequency: The dosing schedule for Darzalex may vary depending on the specific treatment plan prescribed by the healthcare provider. Typically, Darzalex is given weekly for the first 8 weeks, then every 2 weeks for the next 16 weeks, and then every 4 weeks thereafter. However, this schedule may be adjusted based on the patient’s response to treatment and any side effects experienced.
• Monitoring: Throughout the course of treatment with Darzalex, patients will be closely monitored by their healthcare provider. This may include regular check-ups, laboratory tests, and imaging studies to assess the treatment’s effectiveness and monitor for any potential side effects.

It’s important for patients to follow their healthcare provider’s instructions closely and attend all scheduled appointments to ensure the best possible outcomes with Darzalex treatment. Additionally, patients should communicate any concerns or side effects they experience during treatment with their healthcare provider promptly.

Other uses for this medicine

• Amyloidosis: Darzalex is being investigated for its potential in treating systemic light-chain (AL) amyloidosis, a rare condition where abnormal proteins build up in tissues and organs.
• Lymphoma: There’s ongoing research exploring the use of Darzalex in certain types of lymphoma, particularly in combination with other medications.
• Solid Tumors: Darzalex is also being studied for its potential in treating solid tumors, such as certain types of breast cancer.
• Autoimmune Diseases: Some research is being conducted on the use of Darzalex in autoimmune diseases like systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA).

What special precautions should I follow?

Regarding special precautions for Darzalex, here are some important points to consider:

• Allergic Reactions: Patients should be monitored for signs of allergic reactions during and after Darzalex infusion. Symptoms may include difficulty breathing, rash, itching, swelling, or dizziness. If any of these occur, medical attention should be sought immediately.
• Infusion Reactions: Infusion-related reactions, such as fever, chills, nausea, vomiting, headache, or low blood pressure, may occur during or after Darzalex infusion. These reactions are typically mild to moderate but can sometimes be severe. Healthcare providers may take precautions, such as premedication or adjusting the infusion rate, to minimize these reactions.
• Infections: Darzalex can increase the risk of infections, including respiratory infections and urinary tract infections. Patients should be vigilant for signs of infection and report any symptoms to their healthcare provider promptly.
• Monitoring: Regular monitoring of blood cell counts, liver function, and kidney function may be necessary during Darzalex treatment to detect any potential adverse effects.
• Pregnancy and Breastfeeding: Darzalex may cause harm to a developing fetus and should not be used during pregnancy unless the potential benefits outweigh the risks. It is not known whether Darzalex passes into breast milk, so breastfeeding should be avoided during treatment and for some time after the last dose.

As with any medication, it’s crucial for patients to discuss their medical history, current medications, and any concerns with their healthcare provider before starting Darzalex treatment. Compliance with the prescribed treatment regimen and regular follow-up appointments are essential for ensuring the best possible outcomes and minimizing risks.

What special dietary instructions should I follow?

As for special dietary instructions, there are no specific dietary restrictions associated with Darzalex. However, it’s essential to maintain a balanced and nutritious diet to support overall health and well-being during cancer treatment. Patients should follow any dietary recommendations provided by their healthcare provider or nutritionist.

What should I do if I forget a dose?

If a dose of Darzalex is missed, patients should contact their healthcare provider or clinic as soon as possible to reschedule the missed dose. It’s important not to double the dose to make up for a missed one. The healthcare provider will provide guidance on the appropriate course of action based on the specific treatment plan and dosing schedule. Consistency in treatment adherence is crucial for the effectiveness of Darzalex therapy, so patients should strive to attend all scheduled appointments and receive their doses as prescribed.

What side effects can this medication cause?

Darzalex (daratumumab) may cause several side effects, which can vary in severity from mild to severe. Not all patients will experience these side effects, and some may experience different side effects than others. Common side effects of Darzalex include:

• Infusion reactions: Fever, chills, nausea, vomiting, headache, cough, throat irritation, or low blood pressure during or after the infusion.
• Infections: Increased risk of infections such as respiratory tract infections, urinary tract infections, or pneumonia.
• Fatigue: Feeling tired or weak.
• Nausea and vomiting: Feeling nauseous or vomiting.
• Diarrhea: Frequent bowel movements that may be loose or watery.
• Upper respiratory tract infection: Symptoms such as sore throat, runny nose, or congestion.
• Back pain: Pain or discomfort in the back.
• Peripheral edema: Swelling of the hands, ankles, feet, or legs.
• Cough: Persistent or worsening cough.
• Musculoskeletal pain: Pain in the muscles or bones.
• Thrombocytopenia: Decrease in the number of platelets in the blood, which can increase the risk of bleeding.
• Neutropenia: Decrease in the number of neutrophils (a type of white blood cell), which can increase the risk of infections.
• Anemia: Decrease in the number of red blood cells, which can cause fatigue and weakness.
• Rash: Skin rash or itching.
• Fever: Elevated body temperature.

It’s important for patients to report any side effects they experience to their healthcare provider promptly. Some side effects may require medical attention, while others may resolve on their own or with supportive care. Healthcare providers can provide guidance on managing side effects and may adjust the treatment regimen if necessary to minimize their impact.

What should I know about storage and disposal of this medication?

When it comes to the storage and disposal of Darzalex (daratumumab), here are some important points to keep in mind:

• Storage: Darzalex is typically stored in a healthcare facility or pharmacy where it is administered. It is usually supplied as a solution in a single-use vial or infusion bag and should be stored according to the manufacturer’s instructions, usually at room temperature (between 20-25°C or 68-77°F). It should be protected from light and kept in its original packaging until ready for use.
• Disposal: Any unused portion of Darzalex or empty vials should be disposed of properly according to local regulations for hazardous waste disposal. It’s important to follow the specific disposal instructions provided by the healthcare facility or pharmacy where the medication was obtained. Do not dispose of Darzalex in household trash or flush it down the toilet.

In case of emergency/overdose

In case of emergency or overdose involving Darzalex, it’s essential to seek immediate medical attention by contacting emergency services or going to the nearest emergency room. Emergency personnel and healthcare providers are equipped to provide appropriate medical treatment for overdose situations. Patients should not attempt to manage an overdose situation on their own.

What other information should I know?

• Monitoring: Regular monitoring of blood cell counts, liver function, and kidney function may be necessary during Darzalex treatment to detect any potential adverse effects.
• Pregnancy and Breastfeeding: Darzalex may harm a developing fetus, so it’s essential to avoid pregnancy during treatment and for a period after the last dose. Breastfeeding should also be avoided while receiving Darzalex treatment and for some time after the last dose, as it is not known whether Darzalex passes into breast milk.
• Interactions: Patients should inform their healthcare provider about all medications, supplements, and herbal products they are taking before starting Darzalex treatment, as it may interact with certain medications.
• Follow-up: Patients should attend all scheduled appointments with their healthcare provider for monitoring and follow-up during Darzalex treatment. This allows for assessment of treatment effectiveness, management of side effects, and adjustment of the treatment plan if necessary.

By following these guidelines and staying informed about Darzalex treatment, patients can optimize their experience with the medication and minimize risks associated with its use.