Citeline's Trialtrove, Pharmaprojects and Sitetrove curate a very large expert-curated trial, pipeline and site/investigator corpus; Pharma Observatory resolves a public-source entity model with source links on record pages across trials, sites, investigators, companies and investors, at a smaller scale.
Individual plan, $249/seat/mo. Card required.
What Citeline is
Citeline sells Trialtrove, Pharmaprojects and Sitetrove. It describes Trialtrove as "curated data on trial design, enrollment, and execution" that clinical teams use to plan and benchmark trials. source
Sitetrove is described as curating data "from over 60,000 sources", with "over 530,000 investigators and more than 190,000 clinical trial sites spanning 185 countries". source
Pharmaprojects is described as "a comprehensive database of over 90,000 drug profiles, including 20,000 in active development". source
What Pharma Observatory is
Pharma Observatory is a connected model of public biomedical evidence. Trials, drugs,
companies, people and sites are each matched into one record, and figures on record pages link to their source records. It holds 94+ data sources, 930 million+ source records, 600,000+ trials, 380,000+ investigators, 1 million+ research sites, 350,000+ organizations, 790,000+ publications (rounded down to two significant figures; each is defined on the data page). Public trial data comes from ClinicalTrials.gov.
Each trial is one record. A trial page carries the registry's sponsor, phase, status, enrollment and dates, links the lead sponsor to its company page, and has tabs for eligibility, results, endpoints, demographics and investigators.
pharmaobservatory.com/app/trials/NCT02578680A trial page (a phase 3 lung cancer study): sponsor, phase, status, enrollment and dates above the overview. Captured from production data on 2026-10-08.
Side by side
Every Citeline value is quoted or summarized from its own pages, with the page linked and the date we checked it. Ours comes from this application; the counts and the date they were taken are on the data page.
Pharma Observatory compared with Citeline
Fact
Pharma Observatory
Citeline
Published pricing
Individual $249/seat/mo; Team $399/seat/mo; Enterprise sales-ledverify
Included in every paid plan. We issue your connector credential after sign-up; setup steps are published for Claude Code, Claude Desktop, ChatGPT, Codex CLI, and CursorWhether connections are open is read live from this deployment's identity provider configurationverify
Not published
REST API
Enterprise plan; documented in the OpenAPI specificationverify
Names a Drug Development API, an Events API and a Forecast API; the vendor's own page does not describe them as "REST"source
Data sources
94+ data sources, 930 million+ source records, 600,000+ trials, 380,000+ investigators, 1 million+ research sites, 350,000+ organizations, 790,000+ publicationsRounded down to two significant figures, defined on the data pageverify
Over 400,000 trials; a database curating data from over 60,000 sources; over 530,000 investigators and more than 190,000 clinical trial sites across 185 countries; over 90,000 drug profiles including 20,000 in active development (Pharmaprojects)source
Connected entity model
One resolved identity per trial, drug, company, person and siteverify
14-day trial on Individual (Card required. Your first charge is when the trial ends)verify
Works inside an AI agent
Included in every paid plan. We issue your connector credential after sign-up; setup steps are published for Claude Code, Claude Desktop, ChatGPT, Codex CLI, and CursorWhether connections are open is read live from this deployment's identity provider configurationverify
REST API
Enterprise plan; documented in the OpenAPI specificationverify
Data sources
94+ data sources, 930 million+ source records, 600,000+ trials, 380,000+ investigators, 1 million+ research sites, 350,000+ organizations, 790,000+ publicationsRounded down to two significant figures, defined on the data pageverify
Connected entity model
One resolved identity per trial, drug, company, person and siteverify
Names a Drug Development API, an Events API and a Forecast API; the vendor's own page does not describe them as "REST"source
Data sources
Over 400,000 trials; a database curating data from over 60,000 sources; over 530,000 investigators and more than 190,000 clinical trial sites across 185 countries; over 90,000 drug profiles including 20,000 in active development (Pharmaprojects)source
Connected entity model
Not published
Update cadence
Not published
Citations
Not published
Scope: A published price here is not like-for-like coverage: the two products cover different things, as the summary at the top of the page says.
Which to choose
Choose Citeline when
You need Trialtrove+'s in-product AI chat assistant ("Ella, AI Chat Assistant") alongside its trial, pipeline and site databases. source
You need the deepest published trial, investigator and site counts in this comparison: over 400,000 trials, over 530,000 investigators and more than 190,000 clinical trial sites across 185 countries. source
Choose Pharma Observatory when
You want to see the price before talking to anyone. Individual $249/seat/mo; Team $399/seat/mo; Enterprise sales-led.
You want to start on a card. 14-day trial on Individual (Card required. Your first charge is when the trial ends).
You want one connected record, with links from figures to their source records. One resolved identity per trial, drug, company, person and site.
You want to put an AI assistant on the same data. Included in every paid plan. We issue your connector credential after sign-up; setup steps are published for Claude Code, Claude Desktop, ChatGPT, Codex CLI, and Cursor.
Sources
Every Citeline statement above, from Citeline's own pages.
