How long does it take to see the effects of trametinib treatment?

Trametinib (Trametinib) is a drug that targets certain cancers. Its effectiveness and treatment duration vary depending on individual circumstances and the type of cancer. Typically, it may take weeks or months for the therapeutic effects of trametinib to appear. After starting trametinib, patients usually need regular follow-up visits to evaluate the drug's efficacy and patient response.

In an open, multicenter, phase II study, patients with BRAF V600 or advanced melanoma outside the BRAF fusion zone received trametinib 2.0 mg daily. Patients were divided into different groups based on the intrinsic catalytic activity of BRAF mutations. The results showed that among all patients, the objective response rate (ORR) was 33%, 2 patients had stable disease as the best response, and 6 patients had a certain degree of tumor shrinkage. Median progression-free survival (PFS) was 7.3 months. Treatment-related adverse events occurred in all patients (100%); most (89%) were grade 1-2. Studies have shown that trametinib has considerable activity in a small group of melanoma patients with BRAF non-V600 mutations and fusions.

The original drug of Trametinib has been launched in China and is included in the scope of medical insurance, but it may only be available to patients who meet the indications. The price of 2 mg*30 tablets is more than RMB 10,000. The original drug of Trametinib sold overseas, with the price of 2 mg*30 tablets, is more than RMB 7,000 (the price may fluctuate due to exchange rates). There are also generic trametinib drugs produced in other countries overseas, and their drug ingredients are basically the same as those of the original drugs sold domestically and abroad. For example, the price of a 2mg*30 tablet of a generic drug produced by a Laos pharmaceutical factory is more than 2,000 yuan (the price may fluctuate due to the exchange rate).