Research Site Index

The evidence-based
investigator intelligence platform

249,000+ investigator records scored against your protocol in real time. 186 countries. 228 specialties. Monthly refresh with real-time updates on request. The verified intelligence layer behind AcceleTrial.

What the RSI Is

Not a list. A deterministically scored investigator intelligence platform.

Most site lists are static, unverified, and protocol-agnostic. The RSI scores every investigator record against your specific protocol parameters: therapeutic area, phase, indication, and patient population. The result is a ranked, ready-to-use site list in minutes, not weeks.

Monthly refresh with real-time updates on request, backed by validation-based source persistence and quality controls
Protocol-aware scoring across trial experience, clinical volume, recency, and five further components, reweighted for each therapeutic area and phase
20 supported UI languages for global sponsor and operations teams using the RSI runtime
RSI Overview
248K+
Investigator Records
186
Countries
43K+
US Institutions
228
Specialties
12
UI Languages
2008
Founded

RSI Data Preview

What a site record looks like

Research Site Index: Query Results
Illustrative example. Sites and investigators are anonymised and scores are representative, not real records.
Site / Principal InvestigatorIndicationLast TrialScoreStatus
Academic medical center, Midwest US
Principal investigator A
Oncology
2025 Q4
7.3
Active
NCI-designated cancer center, South US
Principal investigator B
Oncology
2026 Q1
7.1
Active
Comprehensive cancer center, Northeast US
Principal investigator C
Oncology
2025 Q3
6.8
Active
Teaching hospital, Northeast US
Principal investigator D
Oncology
2025 Q2
6.4
Active
University health system, Mid-Atlantic US
Principal investigator E
Oncology
2024 Q4
5.9
Watch

Protocol-Aware Scoring Model

Deterministically scored across eight components. One composite RSI score.

Eight weighted components produce one composite score on a 0 to 10 scale. The weights shift by therapeutic area and trial phase, so the same site is ranked differently for an oncology Phase III than for a dermatology Phase I. The same inputs always produce the same result, and that result powers the ranked site list in AcceleTrial.

01
Trial Experience

Depth of registered trial history, and how the investigator ranks against the full index. The one component available for every record worldwide.

02
Clinical Volume

The size of the real patient panel behind the site, from licensed claims and prescribing data. Coverage is strongest in the United States.

03
Recency

Time since the most recent trial on record. Recent work counts for more, and how fast that falls away is tuned by specialty, so a three-year gap reads differently in oncology than in dermatology.

04
Industry Engagement

Evidence the investigator already works with industry sponsors. Coverage is strongest in the United States.

05
Patient Access

The population a study can realistically recruit from around the site's location. Coverage is strongest in the United States.

06
FDA Track Record

Regulatory inspection history. A site inspected and cleared scores above one never inspected at all, and an unresolved finding counts heavily against.

07
Recognition

Publication record and citation standing for the named investigator. Available globally, not only in the United States.

08
Startup Speed

How quickly the site has historically moved from selection to activation, including its ethics review and contracting model.

Not every signal exists for every investigator. Several components draw on data whose coverage is strongest in the United States, so they are thinner across much of the international index. Rather than scoring a missing signal as zero, which would penalise a site simply for being outside the United States, the engine renormalises across the components it does have and pulls the result toward the index-wide average in proportion to what is missing. A site with thin coverage lands near the middle of the scale, not at the bottom.

RSI Score Breakdown: academic medical center, Midwest US / Oncology Phase III
7.3
Composite RSI Score
Illustrative example on the 0 to 10 scale.
Trial Experience
6.0
Clinical Volume
5.5
Recency
4.8
Industry Engagement
4.2
Patient Access
5.1
FDA Track Record
3.6
Recognition
4.6
Startup Speed
3.0

What Each Site Record Contains

Every data point that matters for site selection

Investigator Profiles

Full PI and sub-investigator credentials, board certifications, publication history, active trial load, and years of experience by indication.

Enrollment Performance

Historical enrollment rates against projected targets, broken down by phase, indication, and sponsor type across all prior trials.

Regulatory History

Regulatory inspection outcomes, audit findings, and protocol deviation history. Every compliance event on record.

Sponsor Relationship Data

Every prior engagement this site has had with sponsors and CROs: contracts executed, performance ratings, and communication history.

Patient Population Data

Demographic catchment analysis, disease prevalence in the site's geography, and patient pool estimates for specific indications.

Startup Velocity Metrics

IRB turnaround times, contract-to-SIV timelines, and first-patient-in dates from prior trials, giving a predictive view of activation speed.

Therapeutic Coverage

Virtually all therapeutic areas, 186 countries

The current RSI runtime exposes 228 normalized specialty options covering virtually all therapeutic areas, with 43,000+ distinct US institution labels and global coverage across 186 countries.

OncologyCardiologyNeurologyImmunologyInfectious DiseaseEndocrinologyRheumatologyPsychiatryPulmonologyGastroenterologyRare DiseaseDermatologyOphthalmologyHematologyNephrologyPain ManagementPediatricsWomen's Health

How the RSI Stays Current

Monthly refresh, real-time on request

Site data decays fast. RSI data is refreshed monthly and can be updated in real-time when requested. Validation-backed source persistence and quality controls keep the intelligence layer current.

Monthly Data Refresh

RSI data is refreshed on a monthly basis and can be updated in real time when requested by the sponsor or operations team.

Validation-Backed Quality Controls

Source persistence, shadow validation, and entity-quality workflows maintain trust in the data layer and make the intelligence asset harder to replicate.

Sponsor History Updates

Every new sponsor engagement is added to the site record as it concludes, building a longitudinal performance history over time.

Access the RSI

The verified data your
site decisions deserve

RSI access is available as a standalone product or as the data foundation behind an AcceleTrial engagement. Contact us to discuss what fits your program.

Request RSI AccessSee AcceleTrial

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