Digital Endpoints

We develop disease-specific, analytically and clinically validated endpoints

Why use digital endpoints in clinical trials?

Digital Endpoints Can Capture Meaningful Real-Life Data

Digital Endpoints Can Capture Meaningful Real-Life Data

Traditional assessments of mobility, such as the 6-Minute Walk Test (6MWT), 10-Meter Walk Test (10MWT), or T25-FW, provide valuable but episodic measures of functional capacity. Besides, these in-clinic evaluations often fail to reflect how patients function in their everyday environments.

By contrast, digital endpoints offer continuous and objective insights into patients mobility and behavior in their daily environments. They can also reveal subtle and clinically meaningful dimensions, such as fatigability, that remain invisible in traditional, clinic-based testing.

Child wearing Syde on ankle and wrist and talking to sibling

Digital Endpoints Are a Potential Game-Changer for Clinical Trials

Digital endpoints have the potential to provide more reliable and sensitive assessments than traditional methods, enabling shorter study durations and reduced sample sizes. They also position objective patient data at the core of drug development. Digital endpoints enable precise quantification of disease progression and severity.

>30% sample size reduction​

Researchers from UCB calculated that incorporating a digital endpoint such as SV95C in a disease-modifying drug pivotal trial in Parkinson’s disease would decrease the needed sample size from 620 to 440 participants¹.

$25M+ net benefit

A study conducted in collaboration with the Tufts Center for the Study of Drug Development, the Digital Medicine Society (DiMe) and multiple pharmaceutical industry partners estimated that the integration of digital endpoints could increase the projected net present value of Phase 3 clinical trials by $27–48 million².

Realizing this potential requires the use of appropriate wearable technologies along with disease-specific analytical and clinical validation of digital endpoints to ensure accuracy, robustness, and regulatory compliance.

SV95C primary qualification as a primary endpoint for clinical trials in DMD

SV95C, the Indicator of Ambulatory Function Measured With Syde, Is the First Digital Endpoint Qualified by Regulators

In 2023, the European Medicines Agency (EMA) qualified SV95C (Stride Velocity 95th Centile) as a primary endpoint for superiority studies in Duchenne Muscular Dystrophy patients aged 4 years and older.

SV95C represents the speed of the top 5% fastest strides in the real life of patients. As the first real-world digital endpoint to obtain regulatory qualification, it highlights Syde’s capability to deliver precise, clinically validated, and regulator-ready assessments precise of motor function.

Sysnav Has Developed Endpoints and Conducted Analytical and Clinical Validation in 20 Disease Areas

At Sysnav Healthcare, the development of regulatory-grade digital endpoints begins with building robust disease models informed by insights from patients and clinicians. From these models, we define digital variables that capture key concepts of interest and validate them through rigorous analytical and clinical studies to ensure their robustness, reliability, and clinical relevance.

We have achieved an exceptional validation success rate across 20 disorder areas.

Stride detection precision
> 99 %
Recall
> 97 %

Publications Based on Syde Technology

Here is some of our published work on digital endpoint development and validation.

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Evidentiary basis of the first regulatory qualification of a digital primary efficacy endpoint

2024, Scientific Reports

Stride Velocity 95th Centile Detects Decline in Ambulatory Function Over Shorter Intervals than the 6-Minute Walk Test or North Star Ambulatory Assessment in Duchenne Muscular Dystrophy

2024, Journal of Neuromuscular Diseases

Qualification Opinion for Stride velocity 95th centile as primary endpoint in studies in ambulatory Duchenne Muscular Dystrophy studies

2023, European Medicines Agency (EMA)

First regulatory qualification of a digital primary endpoint to measure treatment efficacy in DMD

2023, Nature Medicine

Normative data on spontaneous stride velocity, stride length, and walking activity in a non-controlled environment

2021, Orphanet Journal of Rare Diseases

A Movement Monitor Based on Magneto-Inertial Sensors for Non-Ambulant Patients with DMD

2016, Plos One

Qualitative Insights into Key Angelman Syndrome Motor Related Concepts Reported by Caregivers—A Thematic Analysis of Semi-Structured Interviews

2023, Children

Wearable Sensor-Derived Digital Outcomes for Quantifying Gait in ALS

2025, International Symposium on ALS/MND

Wearable sensors improve the detection of disability progression in multiple sclerosis

2025, European Charcot Foundation Annual Meeting

Quantifying Ambulation in ALS Using Wearable Sensor-Derived Digital Outcomes

2025, The Annual NEALS Meeting

Longitudinal Stride-Level Evaluation of Ambulatory Function with Ankle Wearable Technology in Ambulant DMD Patients Below 4 Years Old

2025, Annual Congress of the World Muscle Society

Real-life assessment of gait and walking behavior of Angelman patients

2025, Angelman Syndrome Biomarker and Outcome Measure Consortium (A-BOM) Meeting

Two-year Stride-Level Evaluation of Ambulatory Function in Ambulant DMD Patients Above 4 Years Old

2025, Annual Congress of the World Muscle Society

Measuring upper and lower lower limb movement with Syde® in patientswith Facioscapulohumeral muscular dystrophy (FSHD): Analytical validation in a controlled environment

2025, Annual Congress of the World Muscle Society

Feasibility of using a wearable digital health technology sensor to assess ambulation in CMT and DM1

2025, Annual Congress of the World Muscle Society

Measuring gait with Syde® in patientswith Facioscapulohumeral muscular dystrophy (FSHD):Analytical validation in a controlled environment

2025, FSHD International Research Congress

Feasibility of using a wearable digital health technology sensor to assess ambulation in DM1 and CMT

2025, MDA Clinical & Scientific Conference

Feasibility of using a wearable digital health technology sensor to assess ambulation in DM1 and CMT

2025, MDA Clinical & Scientific Conference

Digital Outcomes for Quantifying Ambulation in People Living with ALS Using Wearable Sensors

2025, European Network to Cure ALS (ENCALS)

Paving the way for real-world measurement of ambulation in Ataxia Telangiectasia: a proof of concept in a controlled environment using a wearable device

2025, AT Clinical Research Conference 2025

Longitudinal Stride-Level Evaluationof Ambulatory Function with Ankle Wearable Technologyin Ambulant DMD Patients Below 4 Years Old

2025, MDA Clinical & Scientific Conference

Gait Digital Outcomes Exploration from Continuous Real-World Recordings in Parkinson’s Disease

2024, International Congress of Parkinson’s Disease and Movement Disorders

Reliability and external validity of digital passive gait tracking in MS

2024, American Academy of Neurology

A new digital measure to meaningfully assess daily-life ambulatory function of people with Multiple Sclerosis

2024, European Committee for Treatment and Research in Multiple Sclerosis

Longitudinal evaluation of ambulatory function with ankle wearable technology in ambulant DMD

2024, Annual Congress of the World Muscle Society

Digital mobility outcome measure in patients with Amyotrophic Lateral Sclerosis (ALS)

2024, American Academy of Neurology

Digital mobility outcome measure in patients with Amyotrophic Lateral Sclerosis (ALS)

2024 MDA Clinical & Scientific Conference

Longitudinal multicentric study to validate SV95C in ambulant DMD aged 2-15 years old

2024, International Congress of Myology

Longitudinal multicentric study to validate SV95C in ambulant DMD aged 2-15 years old

2024, MDA Clinical & Scientific Conference

Analysis of the natural evolution of SV95C in ambulant patients with Duchenne Muscular Dystrophy

2023, Annual Congress of the World Muscle Society

Digital outcome captures longitudinal degradation of upper-limb function in non-ambulant patients affected by neuromuscular disorders

2023, Annual Congress of the World Muscle Society

Analytical and clinical validation of a wearable-derived real-world stair climbing outcome in duchenne muscular dystrophy

2023, MDA Clinical & Scientific Conference

Factors affecting the measurement variability of SV95C in ambulant patients with Duchenne Muscular Dystrophy

2023, Annual Congress of the World Muscle Society

The Importance and use of Syde® wearable Technology and the Stride Velocity 95th Centile (SV95C) Endpoint in Duchenne muscular dystrophy

2023, PPMD Italy Conference

EMA OKs First Digital Outcome As Primary Endpoint In Duchenne Studies

2023, Pink Sheet

Evolving regulatory perspectives on digital health technologies for medicinal product development

2023, NPJ Digital Medicine

Wearable inertial sensors for longitudinal follow-up of patients with Amyotrophic Lateral Sclerosis

2022, World Muscle Society

Wearable technology allows real world evidence of performances of patients with spinal muscular atrophy

2022, SMA Europe

Analytical validation of innovative magneto-inertial outcomes: a controlled environment study

2022, European Committee for Treatment and Research in Multiple Sclerosis

First Regulatory Qualification of a Novel Digital Endpoint in Duchenne Muscular Dystrophy: A Multi-Stakeholder Perspective on the Impact for Patients and for Drug Development in Neuromuscular Diseases

2021, Digital Biomarkers

Wearable technology allows faster and more accurate detection of functional changes in Duchenne muscular dystrophy than traditional hospital-based tests

2021, Annual Congress of the World Muscle Society

Home-based gait analysis as an exploratory endpoint during a multicenter phase 1 trial in limb girdle muscular dystrophy type R2 and facioscapulohumeral muscular dystrophy

2021, Muscle & Nerve

Detecting positive and negative change in ambulant DMD boys using 95 centile stride velocity

2020, Annual Congress of the World Muscle Society

European regulators’ views on a wearable-derived performance measurement of ambulation for Duchenne muscular dystrophy regulatory trials

2019, Neuromuscular Disorders

Qualification opinion on stride velocity 95th centile as a secondary endpoint in Duchenne Muscular Dystrophy measured by a valid and suitable wearable device

2019, European Medicines Agency (EMA)

Feasibility and baseline values of continuous movement measurement in patients with centronuclear myopathy by using ActiMyo

2019, Neuromuscular Disorders

Longitudinal home-monitoring data in non-ambulant patients with Duchenne muscular atrophy

2017, Neuromuscular Disorders

ActiMyo home monitoring in adult patients with limb girdle muscular dystrophy type 2B and facioscapulohumeral muscular dystrophy in study ATYR 1940-C-004

2017, Annual Congress of the World Muscle Society

ActiMyo home monitoring in adult patients with limb girdle muscular dystrophy type 2B and facioscapulohumeral muscular dystrophy in study ATYR 1940-C-004

2017, Neuromuscular Disorders

Innovative home activity monitoring in non-ambulant patients with SMA: a multicenter observational trial

2017, Neuromuscular Disorders

Longitudinal results of magneto-inertial motion analysis in DMD ambulant patients

2016, Neuromuscular Disorders

New criteria for assessing the achievement of upper limbs in FSHD patients

2016, Annual Congress of the World Muscle Society

Assessment of lower limbs in FSHD: The ActiMyo as a new outcome for home-monitoring

2016, Annual Congress of the World Muscle Society

Comprehensive Scientific Support for Clinical Trial Design

Sysnav Healthcare provides dedicated scientific support to ensure that digital endpoints are seamlessly integrated into clinical trials. Our team collaborates with sponsors to define relevant variables, select appropriate endpoints, and align study methodology with regulatory and scientific standards.

Sponsor's clinical operations team

Testimonies

Laurent Servais
Laurent ServaisWMS President,
Professor at the MDUK Oxford Neuromuscular Centre
"Sysnav Healthcare provides clinical studies with more sensitive and reliable outcome measures that we miss today. Additional applications for Syde include the evaluation of patients with Multiple Sclerosis or Parkinson’s disease."
Lena Szabo
Lena SzaboHead of neurology ward in 2nd department of Pediatrics in Hungary.

''SV95C represents the spontaneous maximal velocity of patients at home and thus an image of patients real-life top performances.''
Laurence Mignon
Laurence MignonExecutive Director, Clinical Development at n-Lorem Foundation
"I want to express my HUGE gratitude to the Sysnav team for listening to and meeting out needs by providing the Syde for our diverse patient population. I truly appreciate the collaborative mindset and cannot wait to see the type of data we will be collecting over the next few months. Sysnav Healthcare is personalized medicine at its best, providing individualized solutions our patients need."
Špela Miroševič
Špela MiroševičFounding President at CTNNB1 Foundation
"We at the CTNNB1 Foundation are deeply grateful for this support, as it gives us the chance to explore potential clinical endpoints for CTNNB1 syndrome. With Sysnav’s technology, we hope to overcome this obstacle by gaining more precise insights into patients’ movement and daily functioning, ultimately helping us better evaluate treatment outcomes."