# CRLN — Clinical Research Learning Network

> Free clinical research training in any language, for the people who run trials, the sites that host them, and the people who take part in them. crln-learn.com is the front door to all of it.

CRLN is a free clinical-research education network. Training is free for every learner, in every country, with no account needed to start, and is published in 40+ languages as static in-language pages rather than only machine-translated on the fly. Access, cost and language are never barriers.

Three pillars, all free:
- **People who run trials** — career pathways, GCP-aligned practice scenarios scored against ICH E6(R3), a CV tool built for this industry, and verifiable credentials.
- **Sites that host them** — a site portal for rosters, readiness and shared packs.
- **People who take part in them** — plain-language consent-literacy guides. Education only: CRLN does not recruit, screen, match or refer anyone to a study, and gives no medical advice.

CRLN also publishes de-identified, k-anonymous workforce aggregates and a free quarterly Global Workforce Index for sponsors, CROs and talent partners. That funds the mission; it is not the mission.

Full reference for AI answer engines: [/llms-full.txt](/llms-full.txt)

## Start here (learners)

- [Practice Lab](https://crln-practice-lab.crln-learn.com/): 640+ branching trial scenarios and 230+ free lessons, scored against ICH E6(R3), in 40+ languages.
- [Career Path Finder](https://career-finder.crln-learn.com/): maps what you have already done to the clinical-research roles that fit, in 40+ languages.
- [Resume Optimizer](https://resume-optimizer.crln-learn.com/): free CV rewriting for clinical-research roles, in 40+ languages.
- [Understanding clinical research](https://understanding.crln-learn.com/): free consent-literacy guides for trial participants, in 40+ languages.

## Pages (workforce intelligence surface)

- [Home](/): What CRLN measures and who it is for.
- [Workforce Intelligence](/intelligence): Country x role x therapeutic-area readiness and demand-vs-supply signals.
- [Global Workforce Index](/index): Free quarterly ranking of countries by clinical research workforce readiness.
- [For Talent Partners](/for-talent-partners): Publish a trained bench, take sponsor briefs, track placements.
- [For Employers](/employers): Verify a CRLN credential in seconds, no account required.
- [Ecosystem](/ecosystem): How training, signal, and placement connect.
- [Pricing](/pricing): Plans for sponsors, CROs, and talent partners.
- [Sample Snapshot](/sample-snapshot): Example of a published readiness snapshot.
- [Contact Sales](/contact-sales): Talk to the CRLN team about enterprise access.

## Guides

- [CRC Readiness in Emerging Markets](/guides/crc-readiness-emerging-markets): Framework for assessing clinical research coordinator readiness and site selection feasibility.

## For Patients & Participants (free consent-literacy education)

Canonical host: https://understanding.crln-learn.com/ — every guide below is also published at /<lang>/<slug> in 40+ languages.

Plain-language, multilingual education to help clinical trial participants understand consent and their rights. Education only — not medical advice, and not a way to join, find, or match to a study.

- [All participant guides](https://understanding.crln-learn.com/): Free plain-language guides to consent and participant rights, in your language.
- [What informed consent really means](https://understanding.crln-learn.com/informed-consent): Consent is an ongoing process, not a one-time form.
- [Your rights as a trial participant](https://understanding.crln-learn.com/your-rights): Taking part is voluntary; you can withdraw anytime, with no penalty.
- [What the phases of a clinical trial mean](https://understanding.crln-learn.com/trial-phases): Phase 1–4 explained simply.
- [Randomization and placebo, explained simply](https://understanding.crln-learn.com/randomization-placebo): Why chance and placebo make results fair.
- [Questions to ask before you take part](https://understanding.crln-learn.com/questions-to-ask): Simple questions to bring to the study team.
- [How your privacy and data are protected](https://understanding.crln-learn.com/privacy-and-data): How participant information is kept private.
- [What "adverse event" reporting means for you](https://understanding.crln-learn.com/adverse-events): Any health change during a study, and why to report it.
- [Who's who at a trial, and who to ask](https://understanding.crln-learn.com/whos-who): Site, coordinator, investigator, sponsor, and ethics board (IRB).

## Methodology

- [Methodology](/methodology): How readiness is sourced, scored, and aggregated.
- [Coverage Atlas](/methodology/coverage): Where coverage is direct, partial, or modeled.
- [Advisory Board](/about/advisors): Independent scientific and ethics review.

## Optional

- [Trust Center](/trust): Security, privacy, and compliance.
- [Privacy](/privacy): How CRLN handles personal data.