Hoag Family Cancer Institute, Newport Beach, CA
David Joseph Benjamin , Arash Rezazadeh
Background: The treatment landscape of advanced renal cell carcinoma (RCC) drastically changed with the approval of tyrosine kinase inhibitors (TKIs). Since then, immunotherapy (IO) and now TKI plus IO combination therapies is considered standard-of-care. Despite multiple drug approvals, it remains unclear how much improvement in survival these therapies have provided. Methods: We reviewed the US Food and Drug Administration (FDA) website to evaluate all approvals for RCC from 2005 to 2022. We collected progression-free survival (PFS) and overall survival (OS) from the approval notification or from the corresponding clinical trial cited for drug approval. Results: Between 2005 and 2022, there were 16 drug (single or combination) approvals for advanced RCC. Most therapy approvals (93.75%) were granted through accelerated approval. Eight approvals were TKIs, 6 approvals were TKI plus IO combination therapies, and 1 approval each were for immunotherapy and a VEGF inhibitor. Average PFS benefit for 1st line approvals was 5.63 months (range 1.9-14.7) and average PFS benefit for 2nd or later line approvals was 2.95 months (range 0.2-9.1). Average OS benefit in the 1st line setting was 3.6 months and average OS benefit in the 2nd or later line setting was 5.4 months. Conclusions: Despite 16 drug (single or combination) approvals for advanced RCC since 2005, the improvements in average PFS and OS were modest. As OS data matures from recent TKI plus IO combination therapies, OS benefit may improve. Nonetheless, continued drug development is urgently warranted in advanced RCC.
Drug(s) Name(s) | Year of Approval | Original Line of Approval | PFS Benefit (months) | OS Benefit (months) |
---|---|---|---|---|
Sorafenib | 2005 | 1st | 2.7 | HR 0.72 (95% CI 0.54-0.94, p = 0.02) |
Sunitinib | 2006 | 1st | Not applicable as no control arm | Not reported |
Temsirolimus | 2007 | 1st | 1.9 | 3.6 |
Everolimus | 2009 | 2nd | 2.1 | Not reported |
Bevacizumab | 2009 | 1st | 4.8 | None (HR 0.86, 95% CI 0.72-1.04, p =0.13) |
Pazopanib | 2009 | 1st | No benefit (pazopanib 8.4 versus sunitinib 9.5) | No benefit (pazopanib 28.4 versus sunitinib 29.3) |
Axitinib | 2012 | 2nd | 2.0 | Not reported |
Nivolumab | 2015 | 2nd | 0.2 | 5.4 |
Cabozantinib | 2016 | 2nd | 2.6 | Not reported |
Lenvatinib plus everolimus | 2016 | 2nd | 9.1 | Not reported |
Nivolumab plus ipilumumab | 2018 | 1st | 3.2 | Not reached versus 26.0 (HR 0.63, 95% CI 0.44-0.89, p = < 0.0001) |
Axitinib plus avelumab | 2019 | 1st | 5.4 | Not reported |
Axitinib plus pembrolizumab | 2019 | 1st | 4 | Not reached (HR 0.53, 95% CI 0.38-0.74, p<0.0001) |
Lenvatinib plus pembrolizumab | 2021 | 1st | 14.7 | Not reached (HR 0.66, 95% CI 0.49-0.88, p =0.0049) |
Cabozantinib plus nivolumab | 2021 | 1st | 8.3 | Not reached |
Tivozanib | 2021 | 3rd | 1.7 | HR 0.91 (95% CI 0.716-1.165) |
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