Drug glossary Targeted therapy

Dabrafenib Tafinlar

Used in colorectal cancer outside its approved indication. It appears in 9 clinical trials.

Oral BRAF V600E
See its trials
United States Off-label
European Union EMA approved Since 2013
Spain Hospital use Used off-label in colorectal cancer

What it is

Dabrafenib is a selective BRAF kinase inhibitor used in the treatment of metastatic colorectal cancer harboring BRAF V600E mutations. This targeted therapy is employed in combination regimens with other agents such as anti-EGFR antibodies (cetuximab or panitumumab) and chemotherapy backbones like FOLFOX for patients with advanced disease. Dabrafenib specifically addresses the therapeutic challenge posed by BRAF-mutated colorectal cancers, which represent approximately 8-15% of metastatic cases and historically demonstrate poor response to standard treatments.

How it works

Dabrafenib selectively inhibits mutant BRAF V600E kinase, blocking aberrant MAPK pathway signaling that drives tumor cell proliferation and survival. By targeting this specific oncogenic mutation, the drug disrupts the downstream cascade of cellular signals that promote cancer growth and metastasis.

Molecular targets

Common side effects

PyrexiaFatigueHyperkeratosisPapillomaAlopeciaPalmar-plantar erythrodysesthesia syndromeDecreased appetiteArthralgia

Not all are listed, and everyone experiences them differently. If you notice any, tell your care team.