--- title: Find Your ctDNA Approach | A four-question guide description: Answer four questions and get a clear recommendation for the ctDNA approach that suits your study, samples and goals. 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Question 1 of 4 ← Back This guide gives a general indication only and is not clinical advice. The right approach also depends on tumour type, the markers available, sample quality and your specific endpoint. For a considered recommendation, talk to us. [← Back to the methodology comparison](https://simsendiagnostics.com/platform-methodology?hsLang=en) Talk to us ### Speak to our scientific team. A real human, in CET/CEST time zone, who has run samples like yours. 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