Are the Side Effects of Pralsetinib Severe?

Although severe adverse reactions to Pralsetinib (brand name: Gavreto) are relatively rare, the drug may still induce certain severe side effects, requiring close monitoring during administration.

Are the Side Effects of Pralsetinib Severe?

Severe Allergic Reactions

Severe allergic reactions may occur, presenting with symptoms including dyspnea or wheezing, tachycardia, fever, lymphadenopathy, facial or laryngeal edema, dysphagia, skin rash or urticaria, nausea and vomiting, dizziness, gastrointestinal colic, or arthralgia. Discontinue the drug immediately and seek medical assistance upon the onset of any of these symptoms.

Pulmonary Inflammation

In addition, the drug may cause life-threatening pulmonary inflammation (interstitial lung disease or pneumonia). Immediate medical attention is required if symptoms such as dyspnea, cough, fever, or chest pain develop.

Gavreto may also induce hypertension or exacerbate pre-existing hypertension. Contact healthcare providers promptly if there is a significant elevation in blood pressure (e.g., systolic blood pressure ≥180 mmHg or diastolic blood pressure ≥120 mmHg) or if symptoms like severe headache, chest pain, dizziness, dyspnea, or blurred vision occur.

Hepatic Injury

Hepatic injury is another potential risk, which may manifest as nausea, abdominal pain, fever, fatigue, pruritus, decreased appetite, pale stools, dark urine, or jaundice. Regular monitoring of liver function is necessary, and immediate medical consultation should be sought if relevant symptoms appear.

The drug may also increase the risk of severe hemorrhage, such as hematuria, hematemesis, melena, hemoptysis, abnormal bruising, or vaginal bleeding. Emergency medical intervention is required if accompanied by confusion, headache, or dysarthria.

Tumor Lysis Syndrome (TLS)

Furthermore, Gavreto may trigger tumor lysis syndrome, with symptoms including nausea and vomiting, asthenia, edema, shortness of breath, muscle cramps, or seizures. Maintain adequate hydration and undergo regular blood tests during treatment. Inform healthcare providers immediately if any associated symptoms arise.

Special Precautions for Pralsetinib

1. Before taking pralsetinib, inform your physician and pharmacist if you are allergic to pralsetinib, any other medications, or any ingredients contained in pralsetinib capsules. You may request a list of ingredients from your pharmacist.

2. Disclose all other prescription drugs, over-the-counter medications, vitamins, dietary supplements, and herbal products you are taking or planning to take to your physician and pharmacist. Your doctor may need to adjust the dosages of other medications or closely monitor for side effects.

3. The following over-the-counter drugs or herbal products may interact with pralsetinib: St. John's Wort. Be sure to inform your physician and pharmacist if you are taking this product before initiating pralsetinib treatment. Do not start any such medications during pralsetinib therapy without the consent of your healthcare provider.

4. Notify your doctor if you have a history of, or currently suffer from, pulmonary or respiratory disorders (other than lung cancer), bleeding disorders, hypertension, or renal/hepatic diseases.

General Precautions for Pralsetinib

Special Dietary Instructions

Maintain a normal diet unless otherwise instructed by your physician.

Management of Missed Dose

If you remember a missed dose on the same day, take it as soon as possible. Then resume your regular dosing schedule. Do not take a double dose to make up for a missed one.