Arca

Data Sources

Research across primary medical evidence, multidisciplinary scientific literature, and authoritative regulatory records from the United States and around the world.

Coverage

The sources behind every answer

Jump to a domain to review the publication indexes, primary records, registries, guidelines, and regulatory collections in that part of the research corpus.

FDA Records

Primary U.S. drug, biologic, device, labeling, approval, and regulatory-action records from FDA systems.

9 sources

FDA.gov

FDA guidance, safety communications, enforcement materials, recalls, approvals, and the AI-enabled medical-device list.

AccessData FDA

FDA application and product databases, including Drugs@FDA, 510(k) summaries, PMA, MAUDE, and related records.

openFDA / API FDA

Public APIs for drug labels, FAERS and MAUDE events, recalls, device submissions, classifications, and enforcement records.

FDA Labels

FDA-hosted prescribing information and product-label search for approved drugs and biological products.

Orange Book

Approved drug products with therapeutic-equivalence evaluations, patents, and exclusivity information.

Purple Book

FDA records for licensed biological products, biosimilars, and interchangeable biosimilar products.

NCTR Complete Response Letter Search

FDA Complete Response Letters describing deficiencies that prevented approval in the submitted form.

DailyMed

Structured product labeling and current SPL records from the National Library of Medicine.

AccessGUDID

Unique Device Identification records from the Global Unique Device Identification Database.

U.S. Regulatory Guidance

Authoritative U.S. guidance, regulations, rulemaking records, statutes, and official government publications.

6 sources

FDA Guidance & Regulatory Materials

Agency guidance documents, compliance policies, rulemaking notices, and regulatory information.

Electronic Code of Federal Regulations

The continuously updated online edition of federal agency regulations, including Title 21.

Federal Register

Proposed and final rules, notices, and presidential documents published by the U.S. government.

Regulations.gov

Federal rulemaking dockets, supporting materials, notices, and public comments.

GovInfo

Authenticated publications from all three branches of the U.S. federal government.

United States Code

The official subject-matter codification of the general and permanent laws of the United States.

Biomedical Literature

Biomedical publications and regional literature indexes spanning North America, Europe, Latin America, and global health.

8 sources

PubMed

Biomedical and life-sciences citations, abstracts, publication types, and controlled vocabulary records.

NCBI

National Center for Biotechnology Information databases, tools, and integrated life-sciences records.

PubMed Central

A full-text archive of biomedical and life-sciences journal literature.

Europe PMC

Biomedical publication records, abstracts, citations, grants, and available full text.

WHO Global Index Medicus

WHO-supported global health literature and regional medical indexes.

LILACS

Latin American and Caribbean health-sciences literature indexed through BIREME/PAHO/WHO.

BVS / Virtual Health Library

Regional health-sciences databases and evidence resources from the Virtual Health Library network.

SciELO

Open-access scholarly journals and collections, including the global and Brazil portals.

Clinical Trials

Trial registrations, status, interventions, outcomes, sponsors, and regional registry records from the United States and Latin America.

5 sources

ClinicalTrials.gov

U.S. and international clinical-study registrations and results through the ClinicalTrials.gov registry.

FDA Clinical Trial Information

FDA requirements, guidance, safety communications, and public information related to clinical investigations.

ReBEC — Brazil

Brazilian Registry of Clinical Trials and a WHO-recognized primary registry.

RPCEC — Cuba

Cuban Public Registry of Clinical Trials and a WHO-recognized primary registry.

REPEC — Peru

Peru's national registry of authorized clinical trials and related study information.

Scientific Literature & Citation Graph

Multidisciplinary paper discovery through the Semantic Scholar Academic Graph and its documented scholarly-data ecosystem.

12 sources

Semantic Scholar documents more than 50 publisher, data-provider, preprint, and crawler inputs. The named source families below reflect its public corpus documentation; additional partner and web-indexed coverage is represented as a combined family.

Semantic Scholar Academic Graph

A multidisciplinary graph of 200M+ papers linking authors, venues, citations, abstracts, external identifiers, and available full text.

Crossref

DOI-centered scholarly metadata supplied by publishers and registration agencies across journals, proceedings, books, and preprints.

arXiv

Open preprints spanning physics, mathematics, computer science, quantitative biology, statistics, economics, and related fields.

bioRxiv & medRxiv

Preprints across biology, medicine, clinical research, epidemiology, and health sciences before peer review.

Springer Nature

Journal, book, conference, and reference literature across the natural sciences, medicine, engineering, and social sciences.

Wiley Online Library

Peer-reviewed journals, reference works, and research across medicine, life sciences, chemistry, engineering, and other disciplines.

Taylor & Francis Online

Scholarly journals spanning science, technology, medicine, social science, and the humanities.

SAGE Journals

Peer-reviewed research across health sciences, social science, methods, education, engineering, and related fields.

ACM Digital Library

Computing and information-technology journals, conference proceedings, magazines, and technical publications.

IEEE Xplore

Engineering, computer science, biomedical technology, standards, journals, and conference literature from IEEE and partners.

Unpaywall

Open-access location metadata that connects scholarly records to legally available article copies.

Publisher, Society & Web-Indexed Literature

Additional publisher feeds, scholarly societies, university presses, repositories, and academic pages discovered through Semantic Scholar's partner network and web crawler.

Public Health

Public-health guidance, surveillance datasets, epidemiological records, and regional and global health resources.

6 sources

CDC

U.S. public-health guidance, disease information, surveillance materials, and health-topic resources.

CDC Open Data

Public datasets and metadata from the CDC open-data catalog.

CDC WONDER

Public-health datasets and query tools for mortality, births, disease, and population data.

World Health Organization

Global public-health guidance, disease information, reports, standards, and policy resources.

Pan American Health Organization

Regional public-health guidance, data, and programs across the Americas.

Global Index Medicus

WHO-supported health literature from regional indexes around the world.

Clinical Guidelines

Evidence reviews, clinical recommendations, preventive-service guidance, and health-technology assessments.

5 sources

AHRQ

Healthcare evidence, quality, outcomes, and research resources from the Agency for Healthcare Research and Quality.

AHRQ Effective Health Care

Comparative-effectiveness reviews, evidence reports, methods guidance, and stakeholder resources.

USPSTF

Evidence-based clinical preventive-service recommendations from the U.S. Preventive Services Task Force.

NICE

Clinical guidance, quality standards, health-technology assessments, and evidence resources.

Cochrane Library

Systematic reviews, protocols, and controlled-trial evidence from Cochrane's evidence collections.

Standards & Quality

Pharmacopeial standards and international harmonization, inspection, quality, and medical-device guidance.

7 sources

ICH

International Council for Harmonisation quality, safety, efficacy, and multidisciplinary guidelines.

PIC/S

Pharmaceutical Inspection Co-operation Scheme GMP guidance and inspection resources.

USP

United States Pharmacopeia standards, quality resources, and scientific guidance.

USP–NF

Compendial monographs, general chapters, and official United States Pharmacopeia–National Formulary standards.

FDA AccessData

FDA-hosted regulatory databases and quality-related product records.

ICH Guideline Database

ICH guideline documents, implementation status, work products, and supporting materials.

IMDRF

International Medical Device Regulators Forum guidance for medical-device regulatory harmonization.

Global Regulatory

Primary medicines, biologics, medical-device, and health-regulatory authorities across global and regional jurisdictions.

71 sources

Global

World Health Organization

Global health guidance, norms, standards, prequalification, safety, and regulatory-system resources.

IMDRF

International medical-device regulatory harmonization and shared policy resources.

Americas & Caribbean

Canada — Health Canada

Federal drug, biologic, medical-device, product-safety, and health-regulatory materials.

PAHO / PANDRH

Pan-American health and regulatory-harmonization resources for the Americas.

MERCOSUR

Regional policy, resolutions, and technical regulations for MERCOSUR member states.

SIECA

Central American economic-integration rules and regional technical-regulation resources.

Argentina — ANMAT

Argentina's national authority for medicines, food, and medical technology.

Brazil — ANVISA

Brazil's health-regulatory agency for medicines, biologics, devices, and health products.

Chile — ISP

Chile's public-health institute and national medicines and medical-device authority.

Colombia — INVIMA

Colombia's national institute for medicines, food, devices, and sanitary surveillance.

Cuba — CECMED

Cuba's national authority for medicines, equipment, and medical devices.

Mexico — COFEPRIS

Mexico's federal commission for protection against health risks.

Peru — DIGEMID

Peru's directorate for medicines, supplies, and drugs.

Ecuador — ARCSA

Ecuador's national agency for regulation, control, and sanitary surveillance.

Bolivia — AGEMED

Bolivia's state agency for medicines and health technologies.

Paraguay — DINAVISA

Paraguay's national directorate for sanitary surveillance.

Caribbean — CARPHA

Regional public-health and regulatory-system resources for Caribbean member states.

Europe & Eurasia

European Union — EMA

EU medicines guidance, European Public Assessment Reports (EPARs), EudraVigilance safety information, product records, and authorization materials.

European Commission — Health & Legislation

EU health policy and legislation, CTIS trial records, and MDR CECP and IVDR PECP expert-panel opinions.

United Kingdom — Government & MHRA

UK medicines and medical-device policy, licensing, safety, guidance, and enforcement.

Switzerland — Swissmedic & Swissdamed

Swiss therapeutic-product regulation and the national medical-device database.

France — ANSM

France's national agency for the safety of medicines and health products.

Germany — BfArM & PEI

German federal regulation of medicines, devices, vaccines, and biomedicines.

Ireland — HPRA

Ireland's health-products regulatory authority for medicines, devices, and controlled products.

Italy — AIFA

Italy's medicines agency for authorization, reimbursement, safety, and regulatory policy.

Netherlands — CBG-MEB

The Dutch medicines evaluation board and national medicine-information resources.

Sweden — MPA

Sweden's Medical Products Agency for medicines and medical devices.

Spain — AEMPS

Spain's agency for medicines and health products.

Portugal — INFARMED

Portugal's national authority for medicines and health products.

Austria — BASG

Austria's federal office for healthcare safety and medicines oversight.

Denmark — DMA

The Danish Medicines Agency's authorization, safety, reimbursement, and device resources.

Ukraine — DEC

Ukraine's State Expert Center regulatory, registration, and pharmacovigilance resources.

Uzbekistan — Pharmaceutical Products Safety Center

Uzbekistan's medicines and medical-products safety and regulatory information.

Eurasian Economic Commission

Eurasian Economic Union medicines, medical-device, and technical-regulation materials.

Asia-Pacific

Japan — PMDA

Japanese pharmaceuticals and medical-device review, safety, and regulatory information.

Australia — TGA

Australian therapeutic-goods regulation, safety updates, guidance, and product information.

China — NMPA & CDE

China's medicines and medical-device regulator and Center for Drug Evaluation resources.

South Korea — MFDS

Korean medicines, biologics, medical-device, safety, and product-information resources.

Taiwan — TFDA

Taiwan Food and Drug Administration regulatory and product-safety information.

Hong Kong — Drug Office

Hong Kong medicine registration, licensing, safety, and pharmaceutical-service resources.

India — CDSCO & MoHFW

Indian national drug, biologic, device, clinical-trial, and health-policy resources.

Pakistan — DRAP

Pakistan's drug regulatory authority for therapeutic goods and medical devices.

Bangladesh — DGDA

Bangladesh's directorate for medicine licensing, regulation, and safety.

Sri Lanka — NMRA

Sri Lanka's national medicines regulatory authority.

Singapore — HSA

Singapore's regulation of health products, therapeutic products, and medical devices.

Malaysia — NPRA & MDA

Malaysia's pharmaceutical and medical-device regulatory authorities.

Thailand — Thai FDA

Thailand's food, drug, biologic, and medical-device regulatory resources.

Indonesia — BPOM

Indonesia's authority for drug and food control.

Philippines — FDA

Philippine food, medicine, device, and health-product regulatory resources.

Vietnam — DAV

Vietnam's Drug Administration regulatory and product-information resources.

ASEAN

Regional health-product harmonization, standards, and regulatory-cooperation materials.

New Zealand — Medsafe

New Zealand's medicines and medical-device safety authority.

Middle East & North Africa

Saudi Arabia — SFDA

Saudi food, medicine, biologic, and medical-device regulatory resources.

United Arab Emirates — EDE

The Emirates Drug Establishment's medical-product regulation and safety resources.

Gulf Health Council

Regional health, procurement, registration, and regulatory-cooperation resources for GCC states.

Egypt — EDA

Egypt's national authority for medicines, biologics, supplies, and medical devices.

Türkiye — TİTCK

Türkiye's medicines and medical-devices agency.

Israel — Ministry of Health

Israeli medicines, medical-device, clinical-trial, and public-health regulatory resources.

Jordan — JFDA

Jordan's food and drug administration and medical-product regulatory resources.

Sub-Saharan Africa

African Medicines Agency

Continental medicines-regulatory coordination and harmonization resources.

South Africa — SAHPRA

South Africa's authority for health products, medicines, radiation control, and medical devices.

Nigeria — NAFDAC

Nigeria's regulator for food, medicines, medical devices, and other controlled products.

Ghana — FDA

Ghana's food, medicine, medical-device, and health-product regulator.

Ethiopia — EFDA

Ethiopia's authority for medicines, medical devices, food, and health products.

East African Community

Regional medicines-regulatory harmonization and technical-policy resources.

Kenya — Pharmacy and Poisons Board

Kenya's medicines, pharmacy, clinical-trial, and medical-device regulator.

Uganda — NDA

Uganda's national drug authority for medicines and health products.

Tanzania — TMDA

Tanzania's medicines and medical-devices authority.

Rwanda — FDA

Rwanda's food and drugs authority for regulated health products.

Zimbabwe — MCAZ

Zimbabwe's medicines-control authority and product-safety resources.

AVAREF

The African Vaccine Regulatory Forum's clinical-trial and regulatory-capacity resources.

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