Cadence Neuroscience
Sammamish, US · Founded 2017 · Delaware corporation · 21 employees on LinkedIn · 9 known investors
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Cadence develops a neuromodulation system intended to be a more effective, less invasive treatment for people living with drug-refractory epilepsy. The medical device is designed to be adaptable to individual patient needs and was developed in collaboration with Mayo Clinic.
Also known as Cadence Neuroscience, Inc.
Founders & leadership
Cadence Neuroscience was founded in 2017 by Kent Leyde.

Investors · 9
Also in the syndicate · 4
Reported raises · per SEC filings
Form D private placements$29M disclosed across 2 of 3 rounds · 2017–2023
▶$26MraisedFeb 2023 · 7 investors · BiotechnologyRule 506(b)
- John HarrisDirector
- Kevin ChuDirector
- Kent LeydeExecutive Officer, Director
- Gerry BrunkDirector
- Warren Douglas SheffieldExecutive Officer
- Offering amount
- $26M
- Amount sold
- $26M
- First sale
- Feb 2023
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$3MraisedSep 2019 · 1 investors · BiotechnologyRule 506(b)
- Kent LeydeExecutive Officer, Director, Promoter
- Warren Douglas SheffieldExecutive Officer, Director, Promoter
- Andrew FirlikDirector
- John HarrisDirector
- Offering amount
- $15M
- Amount sold
- $3M
- First sale
- Sep 2019
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
▶Undisclosed amountofferedJul 2017 · 1 investors · BiotechnologyRule 506(b)
- Kent LeydeExecutive Officer, Director, Promoter
- Warren Douglas SheffieldExecutive Officer, Director, Promoter
- First sale
- Jul 2017
- Incorporated
- Corporation, Delaware, 2017
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Cadence Neuroscience is a Washington-based medical device company developing a neuromodulation therapy for pediatric and adult patients with focal drug-resistant epilepsy. The therapy uses chronic subthreshold cortical stimulation and modulates EEG biomarkers associated with epilepsy with the goal of reducing or eliminating seizures. The system monitors each patient's brain activity and adjusts stimulation based on the brain's response, so that stimulation parameters are tailored to the individual rather than applied uniformly. The company positions the approach as reversible, avoiding permanent removal or damage of brain tissue.
The therapy was originally developed at Mayo Clinic, where, according to the company, it was used in patients in clinical trials over a period of more than ten years; Cadence engineered the commercial system around that work. The company states it builds its system from materials and manufacturing processes already used in other neuromodulation devices, pairing established hardware with new software. Cadence's technologies are investigational and have not been approved or cleared by the FDA or other health authorities, and are currently accessible only through clinical trial participation.
The company has an exclusive license with Mayo Clinic and maintains multiple clinical partnerships. It sponsors a registered multicenter, prospective, controlled study (NCT06424977) evaluating the safety and effectiveness of its Biomarker Targeted Stimulation (BTS) System, with a listed start date of September 2025. Cadence also produces a podcast, Seizure Diaries, hosted by its CEO and CSO.
Founding story
The company was founded in 2017 by Kent Leyde and Doug Sheffield around technology incubated at Mayo Clinic, with the goal of pushing the boundaries of neuromodulation for people with drug-resistant epilepsy.
Business model
Development-stage medical device company building an implantable neuromodulation system that is intended to reach patients after pivotal clinical studies and regulatory clearance; it is currently funded by venture and strategic investors and its technology is available only through clinical trials.
Traction
The therapy was used at Mayo Clinic in patients in clinical trials for over ten years, and a case series using a prototype version produced patient reports of extended seizure freedom. The company reports more than 30 employees and contractors and multiple clinical partnerships, and is the sponsor of a registered multicenter controlled study of its BTS System.
Latest developments
In May 2023 Cadence announced a $26 million Series B led by the Angelini Lumira Biosciences Fund, with proceeds directed at completing pivotal clinical studies and pursuing FDA clearance; Gerry Brunk of Lumira and Kevin Chu of F-Prime joined the board. A multicenter, prospective, controlled study of the BTS System (NCT06424977) is listed with a September 2025 start date. The company continues publishing blog and newsletter content through 2025 and 2026.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
An early-stage entrant in epilepsy neuromodulation, positioning its therapy against established options such as vagus nerve stimulation, responsive neurostimulation and deep brain stimulation, with backing that includes strategic investor LivaNova USA and Mayo Clinic.
Cadence cites chronic subthreshold cortical stimulation guided by EEG biomarkers and patient-specific parameter adjustment as its distinguishing approach, contrasted on its site with VNS, RNS and DBS seizure-freedom rates (6%, 8% and 12% respectively versus 50% for Cadence, based on preliminary results). It also emphasizes use of materials and manufacturing processes long used in other neuromodulation devices, applying new software to established hardware, and a focus on pediatric epilepsy, a population it describes as often overlooked in neurological device development.
Technology
An implantable neuromodulation system delivering chronic subthreshold cortical stimulation. The system records brain activity and modulates EEG biomarkers associated with epilepsy, adjusting small, precise stimulation pulses to the individual patient's response in order to prevent the instability that can lead to seizures. It is built with materials and manufacturing processes previously used in other neuromodulation devices, combining established hardware with new software. The underlying approach traces to Mayo Clinic research published as Lundstrom et al., 'Chronic Subthreshold Cortical Stimulation and Stimulation-Related EEG Biomarkers for Focal Epilepsy,' Brain Communications, 2019.
Go-to-market
Pre-commercial: the company is conducting clinical studies with academic and clinical partners, notably Mayo Clinic, and stated it would use Series B proceeds to complete pivotal clinical studies and pursue FDA clearance. It engages clinicians, patients and families directly and publishes a podcast and newsletter.
Pediatric and adult patients with focal drug-resistant epilepsy, and the neurologists, epilepsy centers and hospitals that treat them.
Geography
Headquartered in Washington state, United States; press coverage of its Series B described the company as Redmond-based. Development work is conducted in collaboration with Mayo Clinic.
History
Kent Leyde and Doug Sheffield started Cadence in 2017 with the aim of extending neuromodulation for people with drug-resistant epilepsy. In 2019 the company raised a $15M Series A that made it fully operational, enabled recruitment of its core team, supported an exclusive license with Mayo Clinic and initial patient study planning. In 2023 it raised Series B capital to advance the device and technology and prepare for first clinical studies. The company reports having grown to more than 30 employees and contractors and multiple clinical partnerships.
Risks & controversies
Cadence's technologies are investigational and have not been approved or cleared by the FDA or other health authorities; efficacy figures published by the company are described as preliminary and drawn from a case series using a prototype version of the therapy, and patient testimonials come from that case series. The company notes that forward-looking statements are subject to risks and uncertainties and that actual results may differ. Pivotal clinical studies and regulatory clearance remain ahead of it.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 4
launches, deals, and filingsCadence Neuroscience is sponsor of NCT06424977, a multicenter, prospective, controlled study evaluating the safety and effectiveness of biomarker targeted stimulation in epilepsy using the BTS System, listed as not yet recruiting with a 1 September 2025 start date.
Cadence secured $26 million in Series B financing led by the Angelini Lumira Biosciences Fund, with new investors F-Prime Capital, LivaNova USA, Angelini Ventures, Spectrum Financial Services and Mayo Clinic, plus Series A lead Jazz Venture Partners. Proceeds are intended to complete pivotal clinical studies and pursue FDA clearance.
$26M source ↗
In connection with the Series B financing, Gerry Brunk of Lumira and Kevin Chu of F-Prime joined Cadence Neuroscience's board.
Following its Series A, Cadence established an exclusive license with Mayo Clinic and began planning its initial patient studies.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structureIn the news
▸Research sources · 8
primary sources listed
- Cadence Neurosciencecadenceneuro.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Cadence Neuroscience do?
- Medtech developer of a personalized neuromodulation implant system for drug-resistant focal epilepsy, incubated at Mayo Clinic.
- Who founded Cadence Neuroscience?
- Cadence Neuroscience was founded by Kent Leyde in 2017.
- Who are Cadence Neuroscience's investors?
- Cadence Neuroscience's investors include JAZZ Venture Partners, Lumira Ventures, Angelini Ventures, F-Prime Capital, Iaso Ventures.
- How much funding has Cadence Neuroscience raised?
- Cadence Neuroscience has disclosed $29M raised across 2 of its 3 known rounds.
- Where is Cadence Neuroscience headquartered?
- Cadence Neuroscience is headquartered in Sammamish, US.




