Buyer's guide — EFS & first-in-human CROs

Best CRO for Medical Device Early Feasibility Studies (EFS/FIH): A Selection Guide

There is no single "best" CRO for medical device early feasibility (EFS) or first-in-human (FIH) studies — only the best fit for your device type, regulatory route, geography, budget, and company stage. This is a neutral, criteria-based guide: what to evaluate, and an honest look at where a boutique FIH/EFS CRO fits versus a global full-service CRO. Competitor statements here are kept at the category level.

Short answer: which CRO is best for an early feasibility study?

It depends on your program. For a startup's first EFS or FIH study, a boutique or specialist CRO built around early studies is often a better fit than a large full-service global CRO, where a small early study can be deprioritized inside a very large portfolio. For a multi-region pivotal or registration program, a full-service global CRO is frequently the better fit. Many sponsors use both in sequence — a specialist for the early study, then a full-service CRO downstream.

Seven criteria for choosing an EFS/FIH CRO

Boutique FIH/EFS CRO vs global full-service CRO — an honest category comparison

Category-level guidance only. Specific CROs vary widely within each category; verify pricing, timelines, and capabilities directly with each vendor.

Where bioaccess® fits

bioaccess® is a specialist first-in-human CRO for MedTech, Biopharma and Radiopharma startups, pairing U.S.-anchored regulatory strategy (FDA Pre-Sub/Q-Sub, IDE, 510(k), De Novo, PMA, HDE, IND) with clinical execution across 19 Latin American and Caribbean countries and a curated network of pre-qualified sites and vetted investigators. It is a deliberate specialist: it works on EFS and FIH studies for early-stage sponsors and hands off later-phase, multi-region work to downstream partners. For a global Phase III, a full-service CRO is the better fit. Clinical data generated outside the U.S. is developed under ISO 14155 and the Declaration of Helsinki and is eligible for FDA submission and review under 21 CFR 812.28 — acceptance is a case-by-case FDA determination, not a guarantee of clearance or approval.

Frequently asked questions

When should a MedTech startup use a boutique FIH/EFS CRO instead of a global full-service CRO? A specialist tends to fit when your next milestone is a clean, FDA-bridgeable early dataset, your budget and timeline are constrained, and you want a partner for whom your study is a priority. A global full-service CRO tends to fit when you are past the early stage and need a large, multi-region program run in one organization.

Can we use a specialist CRO for the early study and a different CRO for the pivotal? Yes — this is common. Run the EFS/FIH study with a specialist to generate clean, regulator-ready data quickly, then hand off to a full-service global CRO downstream. Design the early study so its data and documentation transfer cleanly.

CRO comparison hub · How the FIH-12™ works · First-in-Human CRO · Early Feasibility Studies · FDA Acceptance of Foreign Clinical Data · Book a free 30-min feasibility call