Gavreto Side Effects

Generic name: pralsetinib

Medically reviewed by Philip Thornton, DipPharm. Last updated on Dec 21, 2024.

Note: This document provides detailed information about Gavreto Side Effects associated with pralsetinib. Some dosage forms listed on this page may not apply specifically to the brand name Gavreto.

Applies to pralsetinib: oral capsule.

Serious side effects of Gavreto

Along with its needed effects, pralsetinib (the active ingredient contained in Gavreto) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking pralsetinib:

More common side effects

• bleeding gums
• blurred vision
• chest pain
• chills
• cough
• coughing up blood
• dark urine
• decrease or change in the amount of urine
• difficulty in breathing or swallowing
• dizziness
• fainting
• fast or slow heartbeat
• fever
• general feeling of discomfort or illness
• headache
• increased menstrual flow or vaginal bleeding
• irregular pulse
• joint pain, stiffness, or swelling
• loss of appetite
• lower back, side, or stomach pain
• nausea
• nervousness
• nosebleeds
• paralysis
• pounding in the ears
• prolonged bleeding from cuts
• rapid weight gain
• red or black, tarry stools
• red or dark brown urine
• slow or fast heartbeat
• stomach pain, severe
• swelling around the eye
• swelling of the eyelids
• swelling of the feet or lower legs
• swelling or puffiness of the face
• thickening of bronchial secretions
• unusual tiredness or weakness
• vomiting
• yellow eyes or skin

Less common side effects

• black, tarry stools
• bladder pain
• bloody or cloudy urine
• chest pain or tightness
• confusion
• difficult, burning, or painful urination
• frequent urge to urinate
• lightheadedness
• lower back or side pain
• pale skin
• sneezing
• sore throat
• sores, ulcers, or white spots on the lips or in the mouth
• swollen glands
• unusual bleeding or bruising

Other side effects of Gavreto

Some side effects of pralsetinib may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common side effects

• bone pain
• burning, numbness, tingling, or painful sensations
• change in taste
• constipation
• decreased appetite
• difficulty in moving
• dry mouth
• joint pain
• lack or loss of strength
• loss of taste
• muscle aching or cramping
• muscle pains or stiffness
• neck pain
• pain, swelling, or redness in the joints
• swelling or inflammation of the mouth
• tenderness
• unsteadiness or awkwardness
• watery or bloody diarrhea
• weakness in the arms, hands, legs, or feet

For healthcare professionals

Applies to pralsetinib: oral capsule.

General adverse events

The most common adverse reactions (25% or greater) were fatigue, constipation, diarrhea, musculoskeletal pain, anemia, and hypertension. The most common Grade 3 or 4 laboratory abnormalities (2% or greater) were decreased lymphocytes, decreased neutrophils, decreased phosphate, decreased hemoglobin, decreased sodium, increased aspartate aminotransferase (AST), decreased platelets, increased alkaline phosphatase, decreased calcium (corrected), and increased alanine aminotransferase (ALT). The most common serious adverse reactions were pneumonia, pneumonitis, and anemia.^[Ref]

Respiratory

• Very common (10% or more): Cough (up to 27%, includes cough, productive cough, upper-airway cough syndrome), dyspnea (22%), pneumonia (17%, includes pneumonia, atypical pneumonia, lung infection, pneumocystis Jirovecii pneumonia, bacterial pneumonia, cytomegaloviral pneumonia, haemophilus pneumonia, pneumonia influenza, streptococcal pneumonia)
• Common (1% to 10%): Cough (Grade 3 or 4), pneumonia (Grade 3 or 4)
• Uncommon (0.1% to 1%): Tuberculosis
• Frequency not reported: Interstitial lung disease, pneumonitis^[Ref]

Tuberculosis mostly extrapulmonary, such as lymph node tuberculosis, peritoneal tuberculosis, or renal tuberculosis have been reported.^[Ref]

Cardiovascular

• Very common (10% or more): Hypertension all Grades (up to 40%), hypertension Grade 3 or 4 (up to 21%), Hemorrhage (19%)^[Ref]

Hepatic

• Very common (10% or more): Increased AST (69%), increased ALT (46%), increased bilirubin (24%)
• Frequency not reported: Hepatotoxicity^[Ref]

Hematologic

• Very common (10% or more): Decreased neutrophils (61%), decreased lymphocytes (56%), decreased platelets (27%), decreased hemoglobin (58%), grade 3 or 4 decreased neutrophils (16%), grade 3 or 4 decreased lymphocytes (19%), decreased albumin (up to 36%), increased potassium (up to 26%), thrombocytopenia (up to 19%)
• Common (1% to 10%): Decreased hemoglobin (Grade 3 or 4), decreased platelets (Grade 3 or 4), hemorrhage^[Ref]

Oncologic

• Frequency not reported: Tumor lysis syndrome^[Ref]

Clinically relevant tumor lysis syndrome occurred in less than 15% of patients.^[Ref]

Gastrointestinal

• Very common (10% or more): Constipation (up to 41%), diarrhea (up to 34%), dry mouth (16%), abdominal pain (includes abdominal discomfort, abdominal pain, abdominal pain upper, abdominal tenderness, epigastric discomfort) (17%), stomatitis (includes mucosal inflammation, stomatitis, tongue ulceration) (up to 17%), nausea (17%), vomiting (12%)
• Common (1% to 10%): Diarrhea, colitis, enteritis (Grade 2 or 4), constipation (Grade 3 or 4)^[Ref]

Other

• Very common (10% or more): Fatigue/asthenia (up to 38%), pyrexia (up to 25%) edema (up to 29%, includes edema peripheral, face edema, periorbital edema, eyelid edema, edema generalized, swelling)
• Common (1% to 10%): Fatigue/asthenia (Grade 3 or 4)
• Frequency not reported: Impaired wound healing, embryo-fetal toxicity^[Ref]

Musculoskeletal

• Very common (10% or more): Musculoskeletal pain (includes back pain, myalgia, arthralgia, pain in extremity, musculoskeletal pain, neck pain, non-cardiac chest pain, musculoskeletal chest pain, bone pain, musculoskeletal stiffness, arthritis, pain in extremity, spinal pain) (up to 42%)
• Frequency not reported: Increased creatine phosphokinase^[Ref]

Clinically relevant increases in creatine phosphokinase occurred in less than 15% of patients.^[Ref]

Metabolic

• Very common (10% or more): Increased alkaline phosphatase (40%), decreased calcium (corrected) (29%), decreased sodium (27%), decreased phosphate (27%), increased phosphate (10%), decreased appetite (15%)^[Ref]

Renal

• Very common (10% or more): Increased creatinine (42%)^[Ref]

Nervous system

• Common (1% to 10%): Headache (24%) (includes migraine, tension headache), dizziness (19%) (includes dizziness, dizziness postural, vertigo), peripheral neuropathy (up to 20%, includes dysesthesia, hyperesthesia, hypoesthesia, neuralgia, neuropathy peripheral, paresthesia, peripheral sensory neuropathy, polyneuropathy), dysgeusia/ageusia (17%), taste disorder (16%)^[Ref]

Dermatologic

• Very common (10% or more): Rash (13%) (includes dermatitis, dermatitis acneiform, eczema, palmar-plantar, erythrodysesthesia syndrome, rash, rash erythematous, rash macular, rash maculo-papular, rash papular, rash pustular)^[Ref]

Genitourinary

• Common (1% to 10%): Urinary tract infection^[Ref]

Further information

Gavreto side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.

Medical Disclaimer