Can larotinib/larlotinib really make tumors disappear?

As to the question of whether tumors will disappear after taking Larotrectinib/Larotrectinib, in fact, there are indeed cases where some patients' tumors shrink or even disappear after taking this drug. But it's important to understand that this effect does not apply to all patients.

Larotinib is a targeted drug designed to treat tumors carryingNTRK gene fusions. NTRK gene fusion, simply put, means that the NTRK gene is abnormally combined with other genes. This combination will misguide tumor cells and promote them to grow and spread faster.

As a new type of anti-cancer "sharp weapon", larotrectinib's working mechanism is to suppress the overactivity of NTRK protein, thereby interrupting abnormal cell signaling and further curbing the proliferation of tumor cells. Multiple clinical studies have shown that larotrectinib has a significant therapeutic effect on patients with NTRK gene fusions. Some patients have experienced significant tumor shrinkage after receiving treatment, and in some cases, complete tumor regression has occurred. Medically, we call this effect "partial remission" or "complete remission."

But not every patient can experience the joy of complete tumor disappearance. Individual differences among patients, the progression of the cancer, and possible drug resistance during treatment are all important factors that influence the effectiveness of treatment. Therefore, before starting larotrectinib treatment, doctors will develop the most appropriate treatment plan based on the patient's genetic test results and overall health.

At the same time, like many other drugs, larotrectinib may also cause some adverse reactions, such as nausea, vomiting, fatigue and diarrhea. Patients should always pay attention to their body's reactions while taking the medicine and report any discomfort or abnormalities to their doctor in a timely manner.