Electronic Clinical Outcome Assessment (eCOA)

Patient-specific outcome measures in clinical trials

Electronic clinical outcome assessment (eCOA) is a method of capturing outcomes data electronically in clinical studies.

By recording outcomes data electronically, paper-based patient questionnaires or diaries are no longer necessary. eCOAs ensure high-quality data in compliance with data security and privacy requirements.

Using electronic patient-reported outcomes (ePROs), patients can enter their data themselves via a user-friendly interface. Thereby, physicians, clinicians and study nurses can save valuable time during the evaluation process, as translation errors, inconsistent or illegible answers can be avoided thanks to digital entry.

Time and resource saving

Electronic Patient-Reported Outcomes (ePROs)

Objective & integrated

Patient-reported outcome measures for an objective assessment of a patients’ quality of life, integrated into clinical workflows

Standardized & validated

Validated generic as well as disease specific questionnaires, available in different languages

Electronic & automated

Electronic recording and automated analysis of outcomes, reduces hospital visits and the administrative burden for clinic staff as well as researchers

How to integrate ePROs/eCOAs into your clinic

In our free checklist, we have summarized the most important requirements.

Patient-reported outcomes at a glance

Selected instruments for patient-related health assessment:

Arrhythmia-Specific Questionnaire in Tachycardia and Arrhythmia (ASTA)

A specific questionnaire to ask about symptoms of tachycardia and arrhythmias and their impact on patients' daily life.

Atrial Fibrillation Effect on QualiTy-of-life (AFEQT)

The Atrial Fibrillation Effect on QualiTy-of-life Questionnaire (AFEQT) evaluates symptoms, daily activities and treatment concerns patients have related to atrial fibrillation.

Duke Activity Status Index (DASI)

The Duke Activity Status Index is a patient-reported estimate of functional capacity in patient groups with cardiovascular disease.


EuroQol's 3-level version is designed to measure overall quality of life regardless of the underlying condition.

Generalized Anxiety Disorder (GAD-7)

A brief and specific measure for assessing general anxiety disorder.

Hip Disability and Osteoarthritis Outcome Score (HOOS)

40 questions for a detailed overview of the health of patients with hip-related problems.

HOOS - Physical Function Short Form (HOOS-PS)

The short form of the HOOS, which is used for the brief and specific evaluation of functional hip-associated outcomes.

Hospital Anxiety and Depression Scale (HADS)

Assessing depression und anxiety symptoms in one single outcome measure.

KOOS - Physical Function Short Form (KOOS-PS)

The short form of the KOOS, which is used for the brief and specific evaluation of the functional knee-associated outcomes.


A PROM developed for use in patients with ligament injuries and other disorders of the knee.

Neck Disability Index (NDI)

Developed on the basis of the Oswestry Disability Index, the NDI stands for a quick and intuitive assessment of neck pain of various origins.

Oxford Hip Score (OHS)

Make hip surgery-related quality of life measurable, especially used for outcome evaluation after hip surgery.

Oxford Knee Score (OKS)

Developed by Oxford University, the OKS aims to ensure that the results of knee operations are evaluated based on patient-related outcomes in addition to radiological and clinical data.

Patient Health Questionnaire-9 (PHQ-9)

The depression module of the Patient Health Questionnaire (PHQ) with 9 items assessing the presence and severity of depression.

Rose Dyspnea Scale (RDS)

A four-item questionnaire that briefly assesses a patients' dyspnea level with common activities.

Seattle Angina Questionnaire (SAQ)

The Seattle Angina Questionnaire (SAQ) is a validated disease-specific instrument for assessing the health status of patients with coronary artery disease.


The little brother of the SF-36 questionnaire for assessing the general quality of life - fewer questions for a shorter processing time despite good statistical values.

Tegner Activity Scale (TAS)

A useful addition to the Lysholm score for assessing knee-related health.


26 questions selected from the original 100-item questionnaire on overall health-related quality of life developed by the World Health Organization.