40M+ citations, ~500K trials
Reviews, meta-analyses, RCTs
Free plan, from €19.99/mo
Sources
Evidence sources searched
40M+ study citations
Filter by study type, including systematic reviews, meta-analyses, and RCTs, and by date, journal, and language. Retractions are flagged and citation counts shown.
Open-access full text
Search inside around 10 million open-access papers, including preprints, for the methods, outcomes, and numbers that abstracts leave out.
Clinical trial registry data
Around 500,000 registered studies with phase, recruitment status, interventions, eligibility, and primary outcomes, for trials that are ongoing or not yet published.
What you can search
What you can look up
Existing reviews
Systematic reviews and meta-analyses on your question, so you know whether it has been answered before you write a protocol.
Randomised controlled trials
RCTs filtered by date, journal, and language, each cited and linked.
Retraction flags
Retracted papers are marked, so they do not slip into your evidence base unnoticed.
Ongoing and unpublished trials
Registered studies by recruitment status, to see what evidence is still to come.
Example Searches
Try these searches
“has SGLT2 inhibition in heart failure already been systematically reviewed”
Systematic reviews and meta-analyses on the question, with dates and citation counts, each linked
“RCTs of tranexamic acid in postpartum haemorrhage since 2015, English and German”
Randomised trials filtered by date and language, cited
“registered trials of GLP-1 agonists in MASH that are still recruiting”
Ongoing studies with phase, interventions, and primary outcomes summarised
“which reported outcomes did the open-access trials on this question use”
Outcome definitions pulled from open-access full text, with the source for each
Challenges & Solutions
Built for how clinicians actually work
The problem
You start a review and find out months later that a recent one already answers the question
The solution
Filter 40M+ study citations by study type to see existing systematic reviews and meta-analyses first, with date and citation count, before you commit to a protocol.
The problem
Retracted studies can end up in an evidence base without anyone noticing
The solution
Wysor flags retracted papers in the results, so you can exclude them deliberately.
The problem
Abstracts leave out the numbers you need, and registered trials that have not published are easy to miss
The solution
Search around 10 million open-access full-text papers, including preprints, and around 500,000 registered trials in the same conversation.
Check whether your question is already reviewed
The first step of a systematic review is making sure it is needed. Wysor searches 40M+ study citations and filters by study type, so you see existing systematic reviews and meta-analyses on your question, with publication date and citation count, before you write a protocol.
Search the evidence with filters you would set anyway
Narrow by study type (systematic reviews, meta-analyses, RCTs), date, journal, and language. Retracted papers are flagged. For the details abstracts leave out, Wysor searches inside around 10 million open-access papers, including preprints. Every answer cites and links each source.
Registered trials, not only published ones
Publication bias starts with trials that never reach a journal. Wysor searches clinical trial registry data for around 500,000 studies, with phase, recruitment status, interventions, eligibility, and primary outcomes, so ongoing and completed but unpublished studies are visible. The EU clinical trials information system (CTIS) is not covered yet.
What stays with your team
Wysor is a search and reading tool for the evidence, not an automated review. Protocol, screening decisions, data extraction, risk-of-bias assessment, and reporting remain your work.
FAQ
Frequently Asked Questions
No. Wysor helps you scope the question and find and understand the evidence. Protocol, screening, data extraction, risk-of-bias assessment, and reporting stay with your review team.
Yes. Study citations can be filtered by study type, date, journal, and language.
Clinical trial registry data for around 500,000 studies is included. The EU clinical trials information system (CTIS) is not covered yet.
Wysor is EU-hosted, with zero data retention and no training on customer data.
There is a free plan to start, and paid plans from €19.99/mo. No enterprise contract and no sales call.
More topics
Explore other topics
Medical certificates with AI
A draft certificate written from the visit, which you review and sign.
AI medical scribe
Listens to the visit and drafts the note, so you review and sign instead of typing.
AI research assistant
Ask a research question in your language and get the cited studies back, in one private workspace.
AI medical letters
Turn findings and course into a structured letter draft you review and sign.
Guideline and drug information research
Guidelines, evidence, and drug labels in one search, every statement cited.