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Original Abstract of the Article

Key Research Findings

Cabozantinib is a multi-targeted kinase inhibitor used for the treatment of several cancers. By targeting multiple signaling pathways, MKIs have become cornerstones of the oncologic treatment. Although their use leads to important results in terms of survival, treatment with MKIs can determine important side effects the clinician must be aware of. Among those, arterial hypertension, mucositis and skin lesions are universally reported, while data about metabolic alterations are scarce. In our review, we focused on glucose and lipid alterations in MKI-treated patients. 26

A study evaluating the correlation between the incidence of adverse events and progression-free survival (PFS) in patients treated with cabozantinib for metastatic renal cell carcinoma (mRCC) found that hypertension, hypothyroidism, and hand-foot syndrome were the most frequent, occurring in about two-thirds of patients. Multiple adverse events were also common, with hypertension, hypothyroidism, diarrhea, and liver toxicity significantly associated with longer PFS values. Patients with three or more side effects had significantly longer PFS than those with two or fewer. 5

There have been reports of bronchial perforation occurring when using a combination of cabozantinib and nivolumab for a tumor with bronchial invasion, with the tumor shrinking. In this case, the patient developed fever and cough and was hospitalized for right lobar pneumonia. Long-term antibiotics were given for bronchial fistula with destruction of the bronchial wall and secondary lung abscess. 18

Cabozantinib is approved for the treatment of advanced renal cell carcinoma. Cabozantinib is a multikinase inhibitor that targets VEGF receptor (VEGFR) 2, mesenchymal-epithelial transition receptor, and "anexelekto" receptor tyrosine kinase. Like other VEGFR inhibitors, cabozantinib can cause toxicity that may affect the patient's quality of life. The most frequent adverse events (AEs) are diarrhea, fatigue, hypertension, hand-foot syndrome, weight loss, nausea, and stomatitis. Adequate interventions can ensure optimum adherence and maximize patient outcomes. 21

Reasons for Side Effects

Cabozantinib inhibits multiple receptor tyrosine kinases, including vascular endothelial growth factor receptor (VEGFR) 2, mesenchymal-epithelial transition factor (MET), and AXL. VEGFR is involved in angiogenesis, and inhibiting VEGFR is thought to suppress tumor growth and metastasis. However, VEGFR inhibitors can affect the blood vessels of normal tissues by inhibiting angiogenesis, leading to side effects such as hypertension and hand-foot syndrome. 2

Common Side Effects

Hypertension

This is one of the major side effects of cabozantinib. 2

Hand-foot Syndrome

This is one of the potential side effects that can occur during cabozantinib treatment. 21

Diarrhea

This is one of the potential side effects that can occur during cabozantinib treatment. Crofelemer may help manage diarrhea caused by cabozantinib treatment. 23

Fatigue

This is one of the potential side effects that can occur during cabozantinib treatment. 21

Weight Loss

This is one of the potential side effects that can occur during cabozantinib treatment. 21

Nausea

This is one of the potential side effects that can occur during cabozantinib treatment. 21

Stomatitis

This is one of the potential side effects that can occur during cabozantinib treatment. 21

Hypothyroidism

This is one of the potential side effects that can occur during cabozantinib treatment. 5

Bronchial Perforation

This is one of the potential side effects that can occur during combination therapy with cabozantinib and nivolumab. 18

Countermeasures for Side Effects

Hypertension

If hypertension occurs during cabozantinib treatment, appropriate treatment, such as administration of antihypertensive drugs, is needed. 1

Diarrhea

Crofelemer may help manage diarrhea caused by cabozantinib treatment. 23

Hand-foot Syndrome

If hand-foot syndrome occurs, appropriate measures, such as reducing the dosage of cabozantinib, are needed. 21

Comparison between Studies

Commonalities among Studies

Multiple studies have shown that cabozantinib is effective in treating metastatic renal cell carcinoma. However, cabozantinib can cause side effects such as hypertension, hand-foot syndrome, and diarrhea. 5 21

Differences among Studies

The incidence and severity of side effects from cabozantinib may vary between studies. This is thought to be influenced by differences in the patient population and study design. 5 21

Cautions Regarding Application to Real Life

Cabozantinib has been shown to be effective in treating metastatic renal cell carcinoma, but it can cause side effects such as hypertension, hand-foot syndrome, and diarrhea. To minimize side effects and maximize therapeutic efficacy, it is essential to follow the doctor's instructions carefully and undergo regular checkups. 5 21

Limitations of Current Research

Research on the side effects of cabozantinib is still limited. In particular, data on metabolic changes is lacking. Further research is needed on methods to predict and prevent the occurrence of side effects. Additionally, research on the interaction of cabozantinib with other drugs is required. 26

Future Research Directions

It is crucial to investigate the side effects of cabozantinib in more detail and elucidate their mechanisms of occurrence. Further research is needed on methods to predict and prevent the occurrence of side effects. Additionally, investigation into the interaction of cabozantinib with other drugs is necessary. 26

Conclusion

Cabozantinib is a multi-targeted kinase inhibitor that is effective in treating metastatic renal cell carcinoma. However, cabozantinib can cause side effects such as hypertension, hand-foot syndrome, and diarrhea. When receiving cabozantinib treatment, it is important to understand the risks and benefits of the side effects and to consult with your doctor. 5 21


Literature analysis of 26 papers
Positive Content
22
Neutral Content
2
Negative Content
2
Article Type
1
3
5
13
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Author: ViolaDavid, ValerioLaura, MolinaroEleonora, AgateLaura, BotticiValeria, BiaginiAgnese, LorussoLoredana, CappagliVirginia, PieruzziLetizia, GianiCarlotta, SabiniElena, PassannatiPaolo, PuleoLuciana, MatroneAntonio, Pontillo-ContilloBenedetta, BattagliaValentina, MazzeoSalvatore, VittiPaolo, EliseiRossella


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