eCOA/ePRO Software Development

Custom eCOA & ePRO Software Built for Real Clinical Endpoints

We build electronic clinical outcome assessment platforms — from validated instrument capture to multi-modal patient-reported outcomes — for CROs, sponsors, and research teams running real trials.

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Why CROs and Research Teams Choose Us

Proven at Scale

Built the eCOA infrastructure behind the world's largest longitudinal ALS patient dataset, capturing structured outcomes across 8 active studies.

Multi-Modal Data Capture

Beyond text-based ePRO: voice, video, and wearable-based outcome assessments alongside traditional questionnaires.

Validated Instrument Support

ALSFRS-R, ROADS, ECAS, and custom-built assessment batteries, configured to your protocol and scoring rules.

Regulatory-Grade Compliance

21 CFR Part 11, HIPAA, and full audit trails built in from day one, not bolted on after.

MVPs in 6–10 Weeks

Launch a working eCOA module fast, then extend it as your study protocol evolves.

Full Lifecycle Support

From instrument configuration to ongoing maintenance, new sites, and evolving compliance needs.

Client Success Stories in eCOA/ePRO

eCOA Infrastructure for the World's Largest ALS Study Network

Built validated outcome capture (ALSFRS-R, ROADS, ECAS) plus voice-based assessment across 8 active studies. ✅ 900+ participants tracked with structured, research-grade outcome data ✅ Unlocked pharma and academic research partnerships

Non-Invasive Remote Outcome Testing

Built an at-home, non-invasive testing platform to reduce patient burden and speed up diagnosis. ✅ Streamlined testing for faster diagnoses and improved outcomes ✅ Real-time researcher access to patient-reported data

Tailored Solutions for eCOA/ePRO Software

Custom eCOA Platform Development

Purpose-built electronic clinical outcome assessment platforms configured to your protocol.

ePRO Questionnaire & Diary Capture

Patient-reported outcome forms, symptom diaries, and scheduled assessments on web and mobile.

Voice & Speech-Based Outcome Assessment

Structured voice recording sessions for speech and cognitive endpoints, integrated end-to-end.

Wearable & Sensor-Based Endpoints

Integrate wearables and connected devices to capture objective outcome data alongside patient-reported data.

eCOA-to-EDC Integration

Connect outcome data directly to your EDC or data management system via API or custom integration.

Multi-Language & Cross-Site Deployment

Localized instruments and workflows for multi-site, multi-country studies.

Our Process: From Idea to Industry-Ready Platform

Let's Talk About Your Use Case

Discovery & Instrument Mapping

Understand your protocol, target instruments, and endpoints before writing a line of code.

eCOA/ePRO Design

Design the assessment flow, scoring logic, and participant experience around your specific instruments.

Agile Development

Sprint-based builds with regular check-ins, so the platform evolves with your study protocol.

Compliance & Validation Testing

21 CFR Part 11 and audit-trail validation before launch.

Deployment & Ongoing Support

Launch, onboard your sites, and get ongoing support as new instruments and endpoints come online.

Deep eCOA Experience

We've built and operated validated outcome capture for one of the largest longitudinal studies in rare-disease research.

Full IP Ownership

You own the code, data, and documentation — with transparent workflows and no lock-in.

Built for Regulatory Scrutiny

Audit trails, validation documentation, and compliance built in from the start, not retrofitted before an inspection.

Why Choose Latent for eCOA/ePRO Software?

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Supported Platforms & Integrations

We Build For

Swift (IOS)

Kotlin (Android)

React Native

Flutter

React (Web)

Vue.js (Web)

Angular (Web)

PWAs

We Integrate With

Wearables & Health APIs

Apple HealthKit

Google Fit

Fitbit

Garmin

EHRs & Interoperability

Epic

Cerner

HL7/FHIR

Infra

AWS

Azure

GCP

You Bring the Vision. We Bring the Team.

Let's build the eCOA/ePRO platform that gives your study clean, validated outcome data from day one.

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Frequently Asked Questions

What is the difference between eCOA and ePRO?

ePRO (electronic patient-reported outcomes) is a subset of eCOA (electronic clinical outcome assessment) — eCOA covers all electronically captured outcomes including patient-reported, clinician-reported, observer-reported, and performance-based data, while ePRO specifically refers to data reported directly by the patient.

Can you build support for a specific validated instrument like ALSFRS-R or ECAS?

Yes. We have direct experience configuring validated instruments including ALSFRS-R, ROADS, and ECAS, and can build support for any licensed or public-domain instrument your protocol requires, including custom scoring logic.

Do you support voice or video-based outcome assessments?

Yes. We build structured voice and video recording sessions as part of the outcome capture flow, including integration with third-party speech analysis tools where a study requires it.

Can the platform work offline or in areas with poor connectivity?

Yes. We design mobile capture flows to store responses locally and sync once connectivity is restored, so participants in remote locations are not excluded from a study.

How do you ensure data quality and reduce missing data?

Scheduled reminders, skip logic, range validation, and completion tracking at the field level all reduce missing or invalid data. Coordinators get visibility into who has and hasn't completed a scheduled assessment.

Can you integrate eCOA data with our existing EDC or CTMS?

Yes, via API or custom integration, so eCOA/ePRO data flows into your existing data management system without manual re-entry.

How do you support multi-site or multi-country studies?

We build in localization and site-specific configuration from the start — translated instruments, region-specific consent language, and role-based access for coordinators across sites.

How do you support 21 CFR Part 11 compliance?

Every action is logged with a timestamped, user-attributed audit trail, and we build in electronic signature workflows where your protocol requires them, so the system is inspection-ready.