
Drug delivery product design and development
Design and engineering experts in advanced drug delivery systems
TTP is trusted by nine of the top ten global pharmaceutical leaders to solve complex drug delivery challenges. As a design and engineering consultancy specialising in advanced drug delivery devices and combination products, we help teams take devices from blank sheet to clinical reality, addressing challenges such as high-viscosity biologics and advanced formulations. With deep engineering, scientific and human factors expertise, our team guides you from early feasibility and concept creation through to design, verification, transfer to manufacture and launch. We focus on developing robust, efficient and scalable devices that support therapeutic effectiveness and perform reliably in real-world use.


Expertise in complex drug delivery systems and combination products
Bringing life-changing drug delivery systems and combination products to market is inherently complex. Device teams face challenges around viscosity, manufacturability, usability and regulatory requirements - any of which can delay launch.
TTP’s drug delivery specialists help pharmaceutical and biotech organisations accelerate development, retire risks early and balance the trade-offs required to create robust, commercially successful devices. We have contributed to more than 70 innovative systems, including autoinjectors, inhalation devices, microneedles, infusion pumps and advanced local-delivery systems.
Our core drug delivery expertise includes:
- Parenteral device development for biologics, complex formulations and high-viscosity drugs, including autoinjectors, pens and wearable injectors
- Respiratory drug delivery, including pMDIs, DPIs and nebulisers
- Local and targeted delivery systems, implantables and sustained-release technologies
- Advanced device engineering, human factors insight, modelling, verification, and design for manufacturability
We work in agile, multidisciplinary teams that can adapt rapidly to project needs, resolve technical challenges early and prevent costly downstream issues. Using first-principles engineering, scientific rigour and probabilistic methods, we identify variability in materials, processes and user interaction to set specifications that ensure consistent device performance throughout the lifecycle.
This approach is why global pharma and biotech companies bring us their most critical, high-impact programmes, and why our work has enabled launches such as AstraZeneca’s Symbicort® dose counter.
Need support with a complex device or formulation challenge?

TTP have been an invaluable long-term partner for AstraZeneca. They have both the deep expertise and creativity to generate innovative concepts, and the horsepower to accelerate these through design verification.
Dan Deaton
Executive Director, Patient Experience & Innovation at AstraZeneca

TTP has been an incredible partner, complementing our expertise and delivering designs from white board to moulded functional prototypes. With TTP’s support, Achilles is scaling our manufacturing process and bringing transformative therapies from bench to bedside. The TTP team has shown the same level of excitement as us in getting these therapies to the people who need them.
Ed Samuel
EVP Technical Operations

When we received the new moulded parts incorporating TTP’s recommendations, all of them performed as intended and within specification. We were really excited.
Justin Creel
Vice President of Device Development


Injection device design and development: autoinjectors, pens and wearables
TTP' has a proven track record in the drug delivery product development process, particularly parenteral device innovation, playing a key role in more than eight mechanical injection devices now on the market, with many more in the pipeline.
Our consultants have supported clients on a range of drug delivery technologies - from variable dose pens and autoinjectors to ophthalmic injectors and wearable devices.
Our current work is helping address many of the challenges that the industry is currently facing, such as:
- Developing devices for complex and challenging formulations
We engineer injection devices that reliably handle high-viscosity biologics, particulate suspensions and primary-pack interactions to prevent issues like clogging and delivery failures.
- Engineering reliable, scalable autoinjectors and pens
We resolve performance and reliability issues in autoinjectors, pens and wearables during scale-up by optimising device mechanics, tolerances and assembly processes.
- Designing sustainable next-generation injection devices
We create ISO 11608–aligned parenteral systems that integrate reusable elements, recyclable materials and separability to meet sustainability goals without compromising performance or usability.
Explore how TTP is advancing next-generation drug delivery solutions for advanced therapies, addressing challenges in high-viscosity mAbs and particulate suspensions through expertise in fluid dynamics, material science, and patient-focused design.


Local and targeted drug delivery systems and implantable devices
Targeted drug delivery promises to revolutionise treatment efficacy by concentrating therapeutics at the site of action while minimising systemic exposure. From oncology to neurology, ophthalmology to pulmonary delivery, these therapies demand delivery systems that are not only scientifically robust but finely tuned to the anatomical, physiological and pathological nuances of the target site.
At TTP, we’re helping our partners navigate the complexity of local and targeted delivery. Our multidisciplinary teams combine deep understanding of tissue biology, pharmacokinetics and advanced materials with engineering excellence to design devices and procedures that deliver with pinpoint accuracy and inspire clinician confidence in a surgical environment.
We have expertise in a wide range of delivery modalities, including:
- Intraocular and intravitreal injectors designed for sustained or repeated dosing
- Intratumoural delivery systems optimised for localised chemotherapy or immunotherapy
- Implantable and biodegradable devices enabling sustained release at the target site
Our solutions are underpinned by first-principles thinking and modelling of tissue interactions, device mechanics, and human factors - ensuring performance from bench to bedside. With patient comfort, clinical usability, and manufacturing feasibility built in from the start, we help you unlock the potential of localised drug delivery to achieve better therapeutic outcomes, faster.


Accelerating respiratory drug delivery from concept to market
Respiratory drug delivery requires alignment of formulation, aerosol science, device design and manufacturability to ensure consistent and effective dosing, patient ease-of-use, and scalable production. Each component influences the other - formulation impacts aerosol performance, which shapes device design, and manufacturability determines production feasibility. TTP’s expertise minimises risks, mitigates delays, and accelerates time to market by enabling optimisation across all areas.
We’ve developed more than 35 respiratory devices ranging from simple to advanced systems - including pMDIs, DPIs, soft mist inhalers, mesh nebulisers and other delivery devices - many of which are now market-leading products.
With deep scientific understanding and cross-industry insight, we drive innovation in both next-generation devices and generics - even in crowded IP landscapes.
As respiratory drug delivery advances, we lead the way in developing technologies essential for future therapies like biologics, mRNA and other future therapies.
Discover how TTP’s TouchSpray™ atomiser technology revolutionised respiratory drug delivery, powering the PARI eFlow® nebuliser to cut treatment time by 50% while delivering 90% drug efficacy and unmatched portability for patients worldwide.
How we can help
Inhaled drug delivery device development
TTP integrates expertise in aerosol science, formulation, device design and manufacturing to optimise performance, ensure patient ease-of-usemand accelerate time to market. With a proven track record across pMDIs, DPIs, nebulisers, and inhalers, we drive next-generation respiratory therapies, from biologics to mRNA delivery.
Drug delivery solutions for complex formulations
TTP specialises in developing innovative drug delivery solutions for advanced formulations, including cell and gene therapies, viral vectors and other advanced treatments. Our expertise in formulation stability, precision dosing, and device design ensures scalable, patient-centric solutions that accelerate development while meeting stringent regulatory requirements.
Innovating parenteral drug delivery devices
From wearable injectors to autoinjectors and ophthalmic delivery, TTP applies deep engineering and scientific expertise to optimise injectable drug delivery. We tackle challenges such as high-viscosity biologics, device reliability at scale and sustainability, helping pharmaceutical companies accelerate innovation while ensuring performance and patient safety.
Regulatory expertise in medical device development
We have helped hundreds of clients prepare design history files for regulatory submission. Our ISO13485:2015 quality system is audited by BSI every year and several times again by quality auditors from multinational pharma and medical device companies. We speak the language of regulatory and quality teams alongside our deep technical expertise and can help clients bridge the gap between engineering and submission. Discover more about TTP's medtech regulatory compliance expertise.
End-to-end drug delivery device design and development
From opportunity discovery and concept ideation to prototyping, regulated design development, and final transfer to manufacture, TTP provides comprehensive support at every stage of the product development cycle, ensuring a streamlined process that accelerates time-to-market and meets regulatory standards.
Human-centred design and human factors engineering
TTP integrates behavioural science, human factors engineering and multidisciplinary product development to design drug delivery devices that are safe, intuitive and effective in real-world use. From early user research and concept development through formative and summative usability studies, we ensure solutions work across diverse patient populations and care environments, reducing use-related risks while supporting regulatory approval and successful adoption. Discover more about our human factors capabilities.
Inhaled drug delivery device development
TTP integrates expertise in aerosol science, formulation, device design and manufacturing to optimise performance, ensure patient ease-of-usemand accelerate time to market. With a proven track record across pMDIs, DPIs, nebulisers, and inhalers, we drive next-generation respiratory therapies, from biologics to mRNA delivery.
Drug delivery solutions for complex formulations
TTP specialises in developing innovative drug delivery solutions for advanced formulations, including cell and gene therapies, viral vectors and other advanced treatments. Our expertise in formulation stability, precision dosing, and device design ensures scalable, patient-centric solutions that accelerate development while meeting stringent regulatory requirements.
Innovating parenteral drug delivery devices
From wearable injectors to autoinjectors and ophthalmic delivery, TTP applies deep engineering and scientific expertise to optimise injectable drug delivery. We tackle challenges such as high-viscosity biologics, device reliability at scale and sustainability, helping pharmaceutical companies accelerate innovation while ensuring performance and patient safety.
Regulatory expertise in medical device development
We have helped hundreds of clients prepare design history files for regulatory submission. Our ISO13485:2015 quality system is audited by BSI every year and several times again by quality auditors from multinational pharma and medical device companies. We speak the language of regulatory and quality teams alongside our deep technical expertise and can help clients bridge the gap between engineering and submission. Discover more about TTP's medtech regulatory compliance expertise.
End-to-end drug delivery device design and development
From opportunity discovery and concept ideation to prototyping, regulated design development, and final transfer to manufacture, TTP provides comprehensive support at every stage of the product development cycle, ensuring a streamlined process that accelerates time-to-market and meets regulatory standards.
Human-centred design and human factors engineering
TTP integrates behavioural science, human factors engineering and multidisciplinary product development to design drug delivery devices that are safe, intuitive and effective in real-world use. From early user research and concept development through formative and summative usability studies, we ensure solutions work across diverse patient populations and care environments, reducing use-related risks while supporting regulatory approval and successful adoption. Discover more about our human factors capabilities.
Speak to one of our experts

Steve Gowers
Steve leads the Drug Delivery & Digital Health business at TTP. With a strong background in human-centred design, Steve has dedicated his career to making these devices intuitive and engaging. He excels at navigating technical trade-offs and collaborating with multi-disciplinary teams to bring these devices from concept through to manufacture and scale-up.

Dan Lock
Dan is a Chartered Ergonomist and Human Factors Specialist (C.ErgHF), he leads research programmes to capture and apply design insights in the development of medical devices and digital health solutions. With a background in psychology (BSc.) and human-computer interaction (MSc.), Dan combines an evidence-based approach with a keen understanding of user needs to address the complex challenges of usability, safety, and engagement in medical device design.

Matthew Parker
Matt leads TTP’s development of innovative drug delivery systems, with a focus on injectable therapies. He specialises in working with clients at an early stage, aligning commercial, technical and user needs to define the right solution and unlock pipeline therapies. With a Master’s in Mechanical Engineering from Cambridge University, his work spans microneedle devices, solutions for cell and gene therapies, and advancing novel electromechanical delivery systems into the clinic.

Nathan Wilkinson
Nathan holds a PhD in Soft Robotics, specialising in the development of novel actuators for surgical and rehabilitation robotics. At TTP, he leads multi-disciplinary teams to design and develop new products across surgery, ophthalmology, and drug delivery. He is passionate about opportunities that use science and technology to create products that improves lives, benefits the planet, and deliver sustainable business growth.
Meet some of the team

Steve Gowers

Dan Lock

Matthew Parker

Nathan Wilkinson
Human-centred design and human factors engineering
At TTP, we design technology around its users because usability is essential, not optional. Our Human Factors team combines behavioural science, engineering and design to create solutions that are safe and widely adopted. Through human centred design and engineering, we help clients reduce risk, move faster and deliver market ready devices.

Medical device manufacturing at TTP
The hardest part of manufacturing isn’t volume, but the transition from design into regulated production. TTP bridges that gap by helping you develop the device and the manufacturing process in parallel, supporting agile clinical and early production builds. With no minimum volumes, no CMO lock-in, and no process IP constraints, you retain control of your product and supply chain.

Frequently Asked Questions
You should engage a medical device design consultancy as early as possible, particularly when defining system architecture, technical feasibility and key design decisions. Early involvement helps identify and retire risks before they escalate, reducing costly redesign and improving confidence as development progresses.
TTP combines deep market-specific experience with the science and engineering strength needed to solve complex medical technology challenges. Even when the concept is unclear, the requirements are evolving or the route forward needs to be worked out from first principles, we can add value - from early opportunity discovery and next-generation systems through to late-stage troubleshooting and end-to-end technology development.
Our systems thinking approach means we look beyond individual components to understand how the full product, user, software, manufacturing route and commercial context need to work together. Dedicated human factors and software teams work alongside our engineers, so usability, digital architecture and technical performance are considered as part of one integrated system.
We are 100% employee-owned, with a flat, collaborative structure that gives clients direct access to the technical people solving their challenges. With science, engineering, software, human factors, manufacturing and lab capabilities all on one campus, we can shape the right team around the challenge, bring in specialist expertise at the right moment and adapt the project as technical, commercial or regulatory needs evolve.
Because we are technology-, factory- and CMO-agnostic, our recommendations are guided by what is right for the product, the programme and the commercial objective. Our ISO 13485 quality management system and small-batch manufacturing capability also help us move beyond prototypes, building product and process understanding in tandem so transfer to manufacture is smoother and lower risk.
Our experience includes not only client development programmes, but also commercialising technology through our own ventures, giving us a practical understanding of the decisions needed to take complex products from concept towards market.
We support both. TTP can act as an end-to-end product development partner or provide targeted support at specific stages such as feasibility, system design, human factors, verification or manufacturing readiness.
We support a wide range of devices and systems, including (but not limited to) wearable and implantable systems, minimally invasive surgical and robotics, navigation and imaging tools, drug delivery and injection devices, ophthalmic systems and diagnostic platforms. Our experience spans multiple MedTech domains, allowing us to tackle multidisciplinary challenges.
We work with ambitious, well-funded companies across the healthcare landscape, from venture-backed start-ups, scale-ups and biotechs to established global MedTech and pharma leaders developing breakthrough technologies.
Whether expanding established product lines or creating something entirely new, our clients usually share a need to solve complex challenges and turn bold ideas into commercial outcomes.
Every project is shaped around the specific challenge and aligned with your own ways of working, governance and decision-making processes. We usually start by agreeing the objectives, scope, risks and key decision points. From there, we work in clear phases, with regular reviews so the project can adapt as understanding develops.
We often work as an extension of our clients’ teams, providing hands-on technical leadership and maintaining continuity throughout development. This avoids handover friction and supports faster, more aligned decision-making.
We reduce risk by identifying the biggest unknowns early,when there is still flexibility to test assumptions, fail fast and pivot ifneeded. This helps teams make better decisions before significant time andinvestment are committed.
For medical device projects, our approach is grounded in ISO13485 design controls, good engineering practice and effective risk management.Where relevant, we work with the expectations of key standards such as ISO14971 for risk management, IEC 60601 for electrical medical equipment, IEC62304 for medical device software and IEC 62366 for usability engineering.Combined with a systems view of the full product, including technicalperformance, software, human factors, quality, regulatory expectations and manufacturingroute. This helps risks be identified and resolved before they become costlylate-stage problems.
Read more about our approach to navigating risk.
We do not provide standalone regulatory consultancy, however, we design and develop medical devices with the relevant regulatory expectations in mind, helping clients build the evidence, traceability and development documentation needed to support future submissions. TTP is also ISO 13485 certified, with certification covering medical device and IVD design, development and contract manufacture, including implantable devices and active implants.
By embedding the right level of regulatory structure early, we help teams gain long-term development efficiency and reduce risk. From concept feasibility through to verification and transfer to manufacture, we design with compliance in mind. Our multidisciplinary teams combine deep technical expertise with strong regulatory fluency, embedding safety and performance considerations at every stage. The result is a more robust product, fewer late-stage surprises, and a clearer, faster route to regulatory submission, turning compliance from a requirement into a genuine development advantage. This regulatory fluency is embedded at every level: within individuals, project teams, and our organisational systems.
Read more about our approach to regulatory compliance
Yes, depending on volumes. TTP has facilities that support prototype, low-volume and selected mid-volume builds, helping bridge the gap between development and transfer to a large-scale manufacturing partner. We do not provide bulk manufacturing, but we can produce quantities suited to activities such as verification, clinical trials or pilot launch — for example, hundreds of instruments/ devices or thousands of consumables, depending on the product and programme needs.
This capability helps clients move beyond prototypes and build consistent, reliable devices while the manufacturing process is still being refined. By developing product and process understanding together, we can make later transfer to a CMO of your choice smoother, better informed and lower risk. TTP is not, however, the legal manufacturer of products.
Read more about our medical device manufacturing capabilities
We consider usability from the outset, not as a final check once the device has already been designed. Our dedicated human factors team works alongside engineers and software specialists to understand users, environments, workflows and use-related risks early in development.
This can include user research, behavioural insight, task analysis, prototyping and formative usability testing, with activities tailored to the stage and needs of the project. By designing around real clinical and home-use contexts, we help create devices that are safer, more intuitive and more likely to be adopted in practice.
Read more about our approach to human-centred design and human factors engineering.
Yes. TTP develops software for regulated medical devices, including Class A, B and C devices under IEC 62304. Our dedicated software team works closely with systems, engineering, human factors and quality specialists, so software is developed as part of the full product architecture, not treated as a separate workstream.
We support embedded software, firmware, connected device software and device-to-cloud ecosystems, building in security, reliability, documentation and traceability from the start. For connected products, we also consider cybersecurity, update pathways, configuration control, SBOMs and long-term lifecycle management, helping software evolve safely within a regulated medical device environment.
Read more about our in-house software team.
We have established product development approaches, procedures and quality processes, but we do not force every project through a rigid, one-size-fits-all stage-gate model. Instead, we adapt the development structure to the client, the technology, the level of risk and the decisions that need to be made.
Where clients already have their own stage-gate process or QMS, we can align with it and provide the documentation, reviews and decision points needed to support it. Where clients need more guidance, we can help define an appropriate development roadmap, breaking the work into clear stages that reduce risk, support investment decisions and build confidence before moving to the next phase.
This means projects remain structured and well controlled, while still being flexible enough to respond as the technology, requirements or commercial priorities evolve.
TTP is often the right fit when the technology is complex, multidisciplinary or novel, especially where it needs to work reliably in a heavily regulated environment.
We help clients bring together science, engineering, user needs, commercial goals and regulatory expectations, whether the challenge is defining the right route forward, integrating complex systems, accelerating development or resolving difficult technical trade-offs.
Complexity is not the only reason to involve us. Clients also come to us when they need senior technical judgement, fast mobilisation or the right specialist expertise brought together quickly to keep a critical programme moving.
We are less likely to be the right fit for routine engineering capacity or simple execution-only tasks where the solution, requirements and route to delivery are already fully defined.
We do not have a rigid engagement process, but projects typically start with a non-confidential discussion to understand the opportunity, challenge and potential fit. From there, we can put a confidentiality agreement in place, explore the brief in more detail, involve the right technical people and start shaping the scope together.
This usually develops through outline discussions, team introductions and iterations towards a formal proposal. Once the terms of business and statement of work are agreed, we move into project kick-off. Because we have a broad internal team and a flexible way of working, we can often move quickly, assemble the right expertise and adapt the process around your development goals.
That depends on how you want to work. We can operate as an extension of your team, working closely with your engineers and stakeholders, or take on a more independent role with agreed review points and decision gates.
We work with clients around the world, with many based in the US, UK and Europe. Our project model is designed to support collaboration across geographies and time zones, using structured communication, regular project touchpoints and in-person meetings or workshops at client or TTP sites where useful.
We usually work with clients around the world and are used to running international projects across multiple time zones, cultures and working styles. Because project teams are often spread across different locations, we agree communication rhythms, meeting times and decision points upfront, so collaboration is clear and progress is maintained.
We also believe face-to-face contact is important, particularly at key moments such as early scoping, workshops, major reviews or build phases. Where useful, we will travel to meet your team, and clients are always welcome to visit us.
In many cases, time differences can be an advantage, allowing work to progress across extended hours. With four decades of global client experience, a multinational team and a high level of repeat business, we have a proven model for making international collaboration work well.
TTP is ISO 13485 certified, with certification covering medical device and IVD design, development and contract manufacture, including implantable devices and active implants.
Our approach to quality is tailored to the stage, risk and regulatory needs of each project, and is flexible enough to integrate with a client’s own systems.
Because our development and manufacturing teams work closely together, quality, documentation, traceability and process understanding can be built in as the product evolves. This supports smooth transfer of documentation, evidence and decisions throughout the project, and helps clients move from technology demonstrator to clinical trial manufacture, early production and, where needed, transfer to high-volume manufacturing.
We agree a communication rhythm at the start of the project, usually including regular update calls, written summaries and clear next actions. We also give visibility of progress, spend and any decisions that could affect budget, raising risks early rather than waiting until the budget is exhausted.
We also believe face-to-face contact is important, particularly at key moments such as early scoping, workshops, major reviews or build phases. Where useful, we travel to meet your team, and clients are always welcome to visit us.
We hand-pick the team around the needs of the project, factoring in how those needs are likely to evolve. With more than 300 engineers, scientists and designers under one roof to draw from, we can bring together the right mix of market knowledge, technical expertise and delivery experience.
Depending on the challenge, this can include specialists in areas such as fluidics, sensing, optics, electronics, software, modelling, materials, mechanics, robotics, human factors, industrial design and design for manufacture.
Most teams are multidisciplinary, with specialists brought in where needed, and your initial contact will usually stay involved as the project progresses.
Each project is led by an experienced technical project leader who is actively involved in the work, not by a separate account manager. This gives clients direct access to the people making the technical decisions, while maintaining continuity throughout the programme.
Our teams also have access to extensive on-site facilities, including dedicated manufacturing space, cleanrooms, microfabrication, assembly areas and specialist labs. This means we can move quickly from concept to testing and build, while drawing on trusted suppliers and partners where additional capability or scale is needed.
Our consultancy work is usually delivered on a fee-for-service basis, with the scope, budget and commercial terms agreed before work begins.
For the complex development projects we typically undertake, success depends on close collaboration between our team and yours. These programmes usually involve technical uncertainty, complex trade-offs and important decisions about risk, cost, performance and route to market. A clear fee-for-service model means we can commit the right team, maintain momentum and make objective recommendations based on what is best for the product and programme - not on future equity value, fundraising outcomes or ownership incentives.
As an employee-owned business, TTP is built around long-term client relationships, shared accountability and a commitment to the quality of our work. In rare circumstances, we can look at alternative funding models.
Our clients work with us because they gain access to decades of accumulated expertise, proven technologies and multidisciplinary know-how.
We recognise that IP is often central to our clients’ commercial strategy, so we agree IP terms at the outset of every project that gives you the rights you need to commercialise your products while making the best use of the capabilities that both organisations bring to the engagement.
In many client-funded programmes, clients own the project outputs within their field of application, with arrangements tailored to reflect background IP, enabling technologies and new developments.
From day one, ownership, licensing and confidentiality are clearly defined and robustly managed, giving both parties the confidence to focus on creating successful products.
Our aim is to make the IP position clear, so you understand how ownership, access rights and use of project outputs will be handled before work begins.





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