Angiogenesis-inhibitors for metastatic thyroid cancer
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Published on: August 23, 2019
Aihua Tan1, Ning Xia, Feng Gao
1Center of Evidence Based Medicine, First Affiliated Hospital, Guangxi Medical University, Taoyuan Road, Nanning, Guangxi, China, 530001.
Background:
Systemic cytostatic therapies for advanced, metastatic thyroid carcinomas have been poorly effective. Tumor growth and metastasis depend on blood supply and blood vessel formation (angiogenesis). Therefore, inhibition of angiogenesis may represent a promising target for cancer therapy.
Objectives:
To evaluate the benefits and risks of angiogenesis-inhibitors for metastatic thyroid cancer when given alone, or in combination with chemotherapy or radiotherapy.
Search Strategy:
We searched The Cochrane Library (2009, Issue 2), MEDLINE (January 2000 to May 2009) and EMBASE (January 2000 to May 2009) databases and abstracts published in annual proceedings for evidence. Attempts were made to identify studies from references in potentially relevant trials. We also searched for ongoing trials.
Selection Criteria:
We planned to include randomized controlled trials that compared angiogenesis-inhibitors with other treatments, no treatment, or placebo in participants who had pathologically confirmed advanced thyroid cancer.
Data Collection And Analysis:
Two authors independently evaluated the search results against the selection criteria. Data extraction and risk of bias assessment were not performed because there were no studies that could be included.
Main Results:
We did not identify any studies which met our full inclusion criteria.
Authors' Conclusions:
There is currently no reliable evidence available from randomized controlled trials regarding the bene fi ts and harms of the use of angiogenesis-inhibitors for treating advanced thyroid cancer. Several trials are ongoing.
Insights
No studies met inclusion criteria for evaluating angiogenesis-inhibitors in advanced thyroid cancer. More research is needed to determine the benefits and risks of these treatments.
Area of Science:
- Oncology
- Vascular Biology
Background:
- Advanced thyroid carcinomas are challenging to treat with systemic cytostatic therapies.
- Tumor growth and metastasis are critically dependent on angiogenesis.
- Inhibiting angiogenesis presents a potential therapeutic strategy for thyroid cancer.
Purpose of the Study:
- To assess the efficacy and safety of angiogenesis-inhibitors for metastatic thyroid cancer.
- To evaluate their use as monotherapy or in combination with chemotherapy or radiotherapy.
Main Methods:
- Comprehensive literature search of major databases (Cochrane, MEDLINE, EMBASE) and conference abstracts.
- Inclusion criteria focused on randomized controlled trials in pathologically confirmed advanced thyroid cancer.
- No studies met the full inclusion criteria, thus data extraction and bias assessment were not performed.
Main Results:
- No randomized controlled trials were identified that met the study's inclusion criteria.
- The search did not yield any eligible studies for meta-analysis or systematic review.
Conclusions:
- There is currently a lack of high-quality evidence from randomized controlled trials on the benefits and harms of angiogenesis-inhibitors for advanced thyroid cancer.
- Several clinical trials are ongoing, which may provide future evidence.
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