EU Evidence Access
OpenEvidence left Europe.
Your evidence workflow does not have to.
Amass is a scientific intelligence platform for biomedical evidence discovery. It helps clinicians, researchers and life science teams search biomedical literature, clinical trials and regulatory sources with citations, traceability and EU-hosted infrastructure.
Amass is not a diagnostic tool, medical device or replacement for clinical judgment. It is built for research, evidence review and scientific intelligence.
Free access — no card required
Free access for European clinicians, researchers and life science teams.
The Amass free tier is available to verified European clinicians, researchers, medical faculty and life science professionals. Sign up with your work or institutional email and start searching biomedical evidence with citations, source links and EU-hosted infrastructure.
- Biomedical literature, clinical trial and patent/regulatory search
- Inline citations linking directly to primary sources
- EU-hosted infrastructure — your queries stay in Europe
- No patient data required or intended
- Monthly query allowance — upgrade only if you need more
Free Tier
no credit card required
Start NowSign up with your work or institutional email.
Free monthly allowance included — upgrade only if you need more.
Important — please read before using
Amass is for research, evidence discovery and scientific intelligence. It is not a medical device and does not provide diagnosis, treatment recommendations or clinical decision support. Amass is not designed for point-of-care use and should not replace clinical judgment or direct patient care. Users are responsible for independently verifying all information and applying appropriate professional standards. Amass does not require or store patient data. Please do not enter personal health information or other patient-identifiable data.
What Amass covers
Search biomedical literature, clinical trials and patents — with citations you can verify.
Biomedical Literature
Search 39M+ biomedical records from PubMed and PMC. Every result links back to the original source, so you can open the paper, inspect the citation and verify the relevant passage.
39M+ biomedical records
Clinical Trial Data
Search 575K+ clinical trial records from ClinicalTrials.gov and TrialCore. Filter by indication, phase, sponsor, intervention and outcome — useful for understanding what is being studied, where and by whom.
575K+ clinical trials
Patents & Regulatory Documents
Search patent and regulatory evidence alongside biomedical literature and trial data. Useful for researchers, clinician-scientists and life science teams who need to understand what has been filed, approved or studied in a given area.
170M+ patents indexed
How it works
Ask a question. Get cited evidence. No special syntax.
01 — Ask
Type a question in plain language
Ask in plain language — from broad evidence questions to specific queries about a condition, target, drug, trial, mechanism or company. No query syntax or filters required.
02 — Retrieve
Results come with citations
Amass searches across biomedical literature, clinical trial records and patent databases, then returns a structured response with citations and links back to the original sources.
03 — Review
Read the sources, not just the summary
Review the cited sources, not just the summary. Amass shows what evidence was found, where it came from and where the gaps are — so you can verify the information and apply your own judgment.
Amass returning cited evidence from the biomedical literature — every statement links to its source.
Get Started Today
Available to European clinicians, hospital doctors, researchers, and medical faculty. No credit card. No time limit.
Get AccessSign up with your work or institutional email.