--- title: Resources | Guides, kits and ctDNA documentation description: "Everything you need to get started: sample collection guides, kit instructions, requisition forms and one-pagers for ctDNA testing with Simsen." --- [Skip to the main content.](https://simsendiagnostics.com/resources-hub#main-content) [![Simsen logotype](https://simsendiagnostics.com/hs-fs/hubfs/SD_logo%20medium-2.png?width=588&height=164&name=SD_logo%20medium-2.png "Simsen logotype")](https://simsendiagnostics.com?hsLang=en) [![Simsen logotype](https://simsendiagnostics.com/hs-fs/hubfs/SD_logo%20medium-2.png?width=588&height=164&name=SD_logo%20medium-2.png "Simsen logotype")](https://simsendiagnostics.com?hsLang=en) - [PLATFORM](https://simsendiagnostics.com/platform) - [Why Simsen](https://simsendiagnostics.com/why-simsen) - [Our technology](https://simsendiagnostics.com/platform-our-technology) - [Methodology](https://simsendiagnostics.com/platform-methodology) - [Find your approach](https://simsendiagnostics.com/find-your-approach) - [Delivered your way](https://simsendiagnostics.com/both-delivery-models) - [Solutions](https://simsendiagnostics.com/solutions-overview) - [EVIDENCE](https://simsendiagnostics.com/evidence-hub) - [Publications](https://simsendiagnostics.com/evidence-publications) - [Paediatric solid tumours](https://simsendiagnostics.com/evidence-paediatric-solid-tumours) - [CNS tumours & CSF ctDNA](https://simsendiagnostics.com/evidence-cns-csf-ctdna) - [White papers](https://simsendiagnostics.com/evidence-white-paper-ctdna-trials) - [COMPANY](https://simsendiagnostics.com/company-about) - [About us](https://simsendiagnostics.com/company-about) - [Team](https://simsendiagnostics.com/company-team) - [Contact us](https://simsendiagnostics.com/company-contact) - [News](https://simsendiagnostics.com/news) - [RESOURCES](https://simsendiagnostics.com/resources-hub) - [Sample collection guides](https://simsendiagnostics.com/resources-sample-collection-guides) - [Baseline kit guide](https://simsendiagnostics.com/baseline-collection-kit) - [Follow-up kit guide](https://simsendiagnostics.com/resources-followup-collection-kit) Search [![Request a conversation](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/25734893/interactive-412216133822.png)](https://simsendiagnostics.com/hs/cta/wi/redirect?encryptedPayload=AVxigLL%2FE2IeUPOuQGveGzU9cyMOym%2FoKd7QEpjdethpGaZQ8u4KJ3HZ0Xpfzg3z7FjAtio6%2F2lM2Rzi%2BZN1%2FB4EEOh7gPD1cm7jTCrIdppu55wWmIkglxpy6M8SgVBdYCiz9MHjdp7w4jqbh3YUBfXfWUDzSn5jNuUyCf%2Fd1lsi9E2cWBKU5wuABOMKfE3miBzJQ8NtPMgL&webInteractiveContentId=412216133822&portalId=25734893&hsLang=en) Toggle Menu Search Toggle Menu [![Request a conversation](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/25734893/interactive-412216133822.png)](https://simsendiagnostics.com/hs/cta/wi/redirect?encryptedPayload=AVxigLL%2FE2IeUPOuQGveGzU9cyMOym%2FoKd7QEpjdethpGaZQ8u4KJ3HZ0Xpfzg3z7FjAtio6%2F2lM2Rzi%2BZN1%2FB4EEOh7gPD1cm7jTCrIdppu55wWmIkglxpy6M8SgVBdYCiz9MHjdp7w4jqbh3YUBfXfWUDzSn5jNuUyCf%2Fd1lsi9E2cWBKU5wuABOMKfE3miBzJQ8NtPMgL&webInteractiveContentId=412216133822&portalId=25734893&hsLang=en) - [PLATFORM](https://simsendiagnostics.com/platform) - [Why Simsen](https://simsendiagnostics.com/why-simsen) - [Our technology](https://simsendiagnostics.com/platform-our-technology) - [Methodology](https://simsendiagnostics.com/platform-methodology) - [Find your approach](https://simsendiagnostics.com/find-your-approach) - [Delivered your way](https://simsendiagnostics.com/both-delivery-models) - [Solutions](https://simsendiagnostics.com/solutions-overview) - [EVIDENCE](https://simsendiagnostics.com/evidence-hub) - [Publications](https://simsendiagnostics.com/evidence-publications) - [Paediatric solid tumours](https://simsendiagnostics.com/evidence-paediatric-solid-tumours) - [CNS tumours & CSF ctDNA](https://simsendiagnostics.com/evidence-cns-csf-ctdna) - [White papers](https://simsendiagnostics.com/evidence-white-paper-ctdna-trials) - [COMPANY](https://simsendiagnostics.com/company-about) - [About us](https://simsendiagnostics.com/company-about) - [Team](https://simsendiagnostics.com/company-team) - [Contact us](https://simsendiagnostics.com/company-contact) - [News](https://simsendiagnostics.com/news) - [RESOURCES](https://simsendiagnostics.com/resources-hub) - [Sample collection guides](https://simsendiagnostics.com/resources-sample-collection-guides) - [Baseline kit guide](https://simsendiagnostics.com/baseline-collection-kit) - [Follow-up kit guide](https://simsendiagnostics.com/resources-followup-collection-kit) [For clinical trials Pharma and CROs Validate MRD endpoints, cut trial-arm cost, build EU regulatory readiness. Design a trial assay →](https://simsendiagnostics.com/solutions-trials?hsLang=en) [For research and labs Translational oncology See signal in paediatric and early-stage samples your current platform misses. Send samples or run SiMSen-Seq in-house. See the signal →](https://simsendiagnostics.com/solutions-research?hsLang=en) [For clinics Premium oncology monitoring Detect minimal residual disease ahead of imaging. Logistics across the EU, UK and EEA. Detect relapse earlier →](https://simsendiagnostics.com/solutions-clinic?hsLang=en) [Home](https://simsendiagnostics.com?hsLang=en) / Resources Resources # Everything you need to *work with us,* in one place. Practical guides and reference material from the team that runs your samples. Collect and ship correctly, request the right analysis, and understand what tumour-informed ctDNA can do for your patients. [Sample collection](https://simsendiagnostics.com/resources-hub#collection) [One-pagers](https://simsendiagnostics.com/resources-hub#one-pagers) GET your samples right ## Sample collection Step-by-step guides for each Simsen Personal Collection Kit, plus the requisition form that travels in the box. Follow them and your samples arrive ready to run. ![streck-tubes](https://simsendiagnostics.com/hubfs/streck-tubes.svg) GUIDE ### Baseline Collection Kit First-visit kit: tumour tissue, a matched normal control and the first ctDNA draw in one box. Tissue + Normal + ctDNA. [Open the guide →](https://simsendiagnostics.com/baseline-collection-kit?hsLang=en) ![streck-tubes](https://simsendiagnostics.com/hubfs/streck-tubes.svg) GUIDE ### Follow-up ctDNA Collection Kit For patients already set up. One blood draw, two Streck tubes, for each ctDNA monitoring timepoint. [Open the guide →](https://simsendiagnostics.com/resources-followup-collection-kit?hsLang=en) ![requisition-form](https://simsendiagnostics.com/hubfs/requisition-form.svg) ONLINE FORM ### Requisition form Complete the requisition online for each shipment and generate the finished PDF to print and enclose in the kit box. [Open the form →](https://simsendiagnostics.com/requisition-form?hsLang=en) The short version ## One-pagers Concise overviews to share with a colleague or take into a meeting. ![Simsen at a glance](https://simsendiagnostics.com/hubfs/Simsen%20at%20a%20glance.png) One-pagerFree • PDF ### Simsen Diagnostics at a glance. A single page on tumour-informed, ultra-sensitive ctDNA analysis: what it detects, how the workflow runs, and how you can use it in-house or as a full service. [View the one-pager in a new window (PDF) →](https://simsendiagnostics.com/hubfs/one-pagers%20(pdf)/Simsen%20at%20a%20glance%20-%20one-pager.pdf?hsLang=en) Can't find it? # Looking for something specific? If you need a document, a data sheet or an answer that is not here yet, our scientific team will get it to you directly. Just ask! [Ask the scientific team →](https://simsendiagnostics.com/start-a-conversation?hsLang=en) Talk to us ### Working out how ctDNA fits your work? A real human, in CET/CEST time zone, who has run samples like yours. 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