Tafinlar (dabrafenib)

Tislelizumab can induce fulminant type 1 diabetes via immune-mediated mechanisms. Proactive monitoring of fasting glucose, HbA1c, and islet function is essential for patients with cancer receiving tislelizumab therapy.

P1/2, N=16, Active, not recruiting, National Cancer Institute (NCI) | N=58 --> 16 | Trial completion date: Nov 2025 --> Jan 2027

P4, N=165, Active, not recruiting, Novartis Pharmaceuticals | Recruiting --> Active, not recruiting

The patient began treatment with dabrafenib-trametinib, followed by pembrolizumab as second-line therapy, ultimately extending her life by nearly seven months. The complexities of accessing newer therapies in Canada's single-payer healthcare system are also emphasized. The utilization of newer rapid diagnostic technologies can have a direct impact on directing treatment for ATC and other aggressive malignancies.

Using high-throughput screening, we established that combining p38 inhibitors with the BRAF inhibitor dabrafenib showed strong synergy in vitro, including in cells resistant to dabrafenib and trametinib that had acquired a secondary TP53 mutation. Overall, our findings suggest an oncogenic link between the MAPK and p38/MAPK14 pathways and that combining p38 pathway inhibitors with dabrafenib-targeted therapy could improve treatment outcomes for aggressive thyroid cancers. However, more specific and effective p38 inhibitors are required to fully harness this potential.

Multigene testing is underutilized in this population. While many targeted therapies carry a high risk of pneumonitis, sotorasib appeared relatively safe. Despite the risks, identifying and treating actionable oncogenic drivers may improve survival.

P1/2, N=75, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Dec 2025 --> Dec 2027 | Trial primary completion date: Dec 2025 --> Dec 2027

Both patients were treated with dabrafenib and trametinib and monitored through clinical assessments, magnetic resonance imaging (MRI), and repeat CSF analyses. In one case, follow-up CSF analysis 3 months post-treatment initiation was negative for BRAF V600E, indicating a potential role for liquid biopsy in monitoring treatment response. No significant toxicity was observed.

Our findings provide new insights for combination therapy including Bcl-xL degradation for melanoma treatment.

P4, N=165, Recruiting, Novartis Pharmaceuticals | Active, not recruiting --> Recruiting | Trial completion date: Jul 2026 --> Nov 2026

The postoperative pathology review revealed a pathological complete response (pCR). This case illustrates that BRAF and mitogen-activated extracellular signal-regulated kinase (MEK) inhibitor therapy may represent a viable option for neoadjuvant therapy in locally advanced BRAF V600E mutant NSCLC.

After 6 months, he achieved complete remission of liver metastases, experiencing only mild adverse events, including grade 1 pyrexia and diarrhea. This case report demonstrates that dabrafenib-trametinib combination therapy is an effective and well-tolerated treatment option for BRAF-mutated metastatic melanoma in advanced-age patients.