Clinical search engine that answers with sources
ClinicalEvidence is a clinical search engine for professionals. It searches registered trials and published studies in one place, writes a short answer from what it finds and links every sentence to the NCT number or PMID behind it.
Why a medical search engine still leaves you reading for hours
Most medical search engines return lists. You type a question, get several hundred records sorted by date or keyword match, and then the real work begins: opening abstracts, checking registry entries, noting which trials reported results and which did not. Trial registries and the biomedical literature live in separate systems, each with its own query syntax, so one evidence question becomes several searches.
General web search is faster to use but mixes press releases, patient forums and commercial pages with primary evidence. AI chat tools answer in seconds, yet often without reliable sources. None of these gives you a direct answer and the primary records in the same view.
- Registries and literature searched separately
- Long result lists without an answer
- Web results that mix primary evidence with opinion
- Quick answers without verifiable sources
One medical research search engine for registries and literature
ClinicalEvidence keeps its own index of ClinicalTrials.gov, PubMed, PubMed Central open access articles, the EU Clinical Trials Register and WHO ICTRP where licences allow, refreshed every day. Semantic search understands a question written in plain English, and full text search catches exact drug names, gene names and trial acronyms. Both run on every question.
The language model writes the answer only from the passages retrieved for your question. Each sentence carries its NCT numbers or PMIDs, and automatic citation verification confirms that each ID exists in the index and that the passage supports the sentence. When the index holds no evidence, the answer says so plainly instead of guessing. Read the full explanation of how it works.
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Plain English questions, no query syntax to learn
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Registry records and publications in one result
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A "Sources searched" panel showing which sources were used
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No answer without a verified source
What a clinical search returns
Each search gives you a short cited answer and a trial table with phase, population, interventions, primary and secondary endpoints, results posted, sponsor, status, enrolment, dates and locations. You sort and filter by condition, intervention, phase, status, study type, date range, sponsor type, country and results available.
From the same question you can open an evidence summary with the level of evidence for each source, compare two to four interventions side by side, save the question as an email alert and export the results.
- Every NCT number opens the registry record
- Every PMID opens the PubMed abstract
- Export to CSV, RIS and BibTeX on every plan, XLSX and DOCX from Research Team
For registry focused work, see clinical trial search and PubMed AI.
Questions professionals ask the clinical search engine
The search works best with questions that name a population, an intervention and an outcome. A few examples of how people phrase them:
- Which phase 3 trials compare a GLP-1 receptor agonist with placebo for cardiovascular outcomes in adults without diabetes
- What do randomized trials report for SGLT2 inhibitors in heart failure with preserved ejection fraction
- Which CAR-T trials in relapsed multiple myeloma are recruiting in Europe
- Which completed trials of a device for atrial appendage closure have posted results
The answer names the trials and studies it relies on, and the table shows every match, so you can see both the summary and the full set.
Who uses ClinicalEvidence as a clinical search engine
Physicians and clinical pharmacists checking evidence, medical affairs teams answering information requests, clinical development and feasibility leads scanning the trial landscape, CRO teams, HEOR and regulatory consultants. It is a professional tool, not for patients and not medical advice, and it needs no patient data. Read more in AI for doctors.
Plans for professional search
Save 50% with yearly billing on every plan.
- Clinician 49 USD per month, or 24 USD per month billed yearly (288 USD), 200 cited answers and 1 seat
- Research Team 199 USD per month, or 99 USD per month billed yearly (1 188 USD), 800 pooled answers and 3 seats
- Organization 499 USD per month, or 249 USD per month billed yearly (2 988 USD), 2 000 pooled answers and 10 seats
- Enterprise 1 490 USD per month, or 745 USD per month billed yearly (8 940 USD), 6 000 pooled answers and up to 50 seats
See every limit on the pricing page.
Questions about the clinical search engine
Which sources does ClinicalEvidence search?
ClinicalTrials.gov, PubMed, PubMed Central open access articles, the EU Clinical Trials Register and WHO ICTRP where licences allow. The index is refreshed every day.
Do I need special search syntax?
No. Write the question in plain English. Semantic and full text search run together, and filters narrow the results by phase, status, study type, country and more.
How is this different from a list of search results?
You get a short answer written only from the retrieved records, with an NCT number or PMID on every sentence, plus the full table of matching studies.
Is ClinicalEvidence affiliated with the registries it searches?
No. It searches public registries and literature databases. It is not affiliated with or endorsed by them.
Can I try a search before subscribing?
Yes. The homepage demo answers one question with real citations and the first three matching studies.
Search trials and studies in one place
Ask your question and get a cited answer with every matching study next to it.