Are you looking for a possible clinical trial, or looking for information on what a clinical trial is?
Here is a starting point for trials that might consider GCT (GCT is considered a solid tumour). You can refine the selection criteria once the query runs by clicking on “Modify Search” and then “Advanced Search”.
Alert:: 3 September 2019 — Clinical trial for GCT is open for recruiting patients
What are clinical trials and how do I search for one?
If you are looking for basic understanding about what trials are, or how to use the NCI Trial Search tool, check this out:Clinical_Trials