How many boxes of larotinib/larlotinib should be taken a month?

Larotrectinib is a new type of oral small molecule drug that has demonstrated therapeutic effects in the field of tumor treatment due to its excellent inhibitory activity against tropomyosin kinase (TRK). Patients eligible to receive larotrectinib are those with metastatic cancer or cancer whose surgical removal would cause significant morbidity, such as disfigurement. Eligible patients will have no other good alternative treatment options or will progress after treatment.

As to how many boxes of larotrectinib you need to take in a month, it may depend on a number of factors, including the patient's specific condition, treatment plan, and drug specifications. The dosage of larotrectinib is determined based on the patient's body surface area. For adult and pediatric patients with a body surface area ≥1 m², the recommended dose is 100 mg orally twice daily. For pediatric patients whose body surface area is less than 1 m², the dose is 100 mg/m² orally twice a day. This dose setting ensures that the drug is tailored to the patient's condition.

The specifications of larotrectinib are also one of the factors that affect the number of boxes required per month. Larotinib capsules and oral solutions were formulated using larotinib sulfate. Currently, larotrectinib is available in two capsule sizes: 25 mg and 100 mg, while the oral solution is available in 20 mg/100 mL. If an adult patient uses the 100 mg capsule size and takes it according to the recommended dosage, he or she needs to take two capsules per day, which means 60 capsules per month (based on 30 days), that is, 3 boxes (20 capsules per box). Please note, however, that this is only a hypothetical example and the actual number of boxes required may vary depending on the patient's condition.