A study on the association between hyperlipidemia and hypothyroidism and the response to TKIs in metastatic renal cell carcinoma
Yan Song1, Chunxia Du1, Wen Zhang1
1Department of Medical Oncology, Cancer Hospital (Institute), Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
Aim:
Vascular endothelial growth facto receptor-tyrosine kinase inhibitors (VEGFR-TKIs) are widely used for metastatic renal cell carcinoma (mRCC). The aim of this study was to investigate the association between the response to VEGFR-TKIs and hyperlipidemia and hypothyroidism.
Methods:
Clinical data on 155 patients with mRCC treated with VEGFR-TKIs at the Cancer Hospital of Chinese Academy of Medical Sciences from 2006 to 2014 were retrospectively analyzed. All patients received first-line TKI therapy. Survival analysis was performed with a significance level of 0.05 using a Kaplan-Meier curve. The χ(2) test was used for the intergroup comparison. The Cox regression model was used for the analysis of multiple factors affecting survival.
Results:
The median survival for the whole group (n = 155) was 36.2 months. A total of 57 patients (36.8 percent) developed hypothyroidism and 85 patients (54.9 percent) experienced hyperlipidemia. The response rate (RR) and median progression-free survival (mPFS) for patients with normal thyroid function were 32.7 percent and 9.1 months, respectively, 54.5 percent and 13.7 months with grade I hypothyroidism, 70.8 percent and 23.8 months with grade II hypothyroidism (P values of 0.001 and 0.017, respectively). The RR and mPFS for patients with normal blood lipids were 23.9 percent and 8.0 months, respectively, 54.0 percent and 12.9 months with grade I hyperlipidemia, 60.7 percent and 14.0 months with grade II hyperlipidemia, and 100.0 percent and 22.2 months with grade III hyperlipidemia. Significant differences in the RR and mPFS were seen between groups (the P values were 0.000 and 0.005, respectively).
Conclusion:
Hypothyroidism or hyperlipidemia may be effective predictive factors for response to treatment with VEGFR-TKIs in mRCC patients. Large-sample studies are warranted to further prove these results.
Insights
Hypothyroidism and hyperlipidemia may predict treatment response in metastatic renal cell carcinoma (mRCC) patients receiving vascular endothelial growth factor receptor-tyrosine kinase inhibitors (VEGFR-TKIs). These findings suggest potential biomarkers for VEGFR-TKI therapy efficacy.
Area of Science:
- Oncology
- Pharmacology
- Endocrinology
Background:
- Vascular endothelial growth factor receptor-tyrosine kinase inhibitors (VEGFR-TKIs) are a cornerstone treatment for metastatic renal cell carcinoma (mRCC).
- Predictive biomarkers are crucial for optimizing VEGFR-TKI therapy in mRCC patients.
Purpose of the Study:
- To investigate the association between treatment response to VEGFR-TKIs and the development of hyperlipidemia and hypothyroidism in mRCC patients.
- To evaluate hypothyroidism and hyperlipidemia as potential predictive factors for VEGFR-TKI efficacy.
Main Methods:
- Retrospective analysis of clinical data from 155 mRCC patients treated with first-line VEGFR-TKIs.
- Survival analysis using Kaplan-Meier curves and Cox regression models.
- Assessment of response rates (RR) and median progression-free survival (mPFS) in relation to endocrine and lipid profiles.
Main Results:
- Hypothyroidism developed in 36.8% and hyperlipidemia in 54.9% of patients.
- Patients with hypothyroidism or hyperlipidemia showed significantly higher response rates and longer mPFS compared to those without (P < 0.05).
- A dose-dependent relationship was observed between the severity of hypothyroidism/hyperlipidemia and treatment outcomes.
Conclusions:
- Hypothyroidism and hyperlipidemia are associated with improved response to VEGFR-TKIs in mRCC.
- These conditions may serve as predictive biomarkers for VEGFR-TKI therapy.
- Further large-scale studies are needed to validate these findings.
More Related Videos
Related Concept Videos
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...
Targeted Cancer Therapies
There are several types of targeted therapies against...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Chronic Kidney Disease II: Clinical Manifestations


