The insulin pen for vials
GO-PEN® is an easy-to-use, reusable insulin pen with a user-filled reservoir, built for the 20+ million people worldwide still using syringes for daily injections.
11 November, 2025
GO-PEN® received CE-Mark (class IIb) for its user-fillable insulin pen.
The change
GO-PEN® brings
For many people using insulin from vials, the choice has traditionally been between continuing with vial and syringe or moving to higher-cost pre-filled pens. GO-PEN bridges that gap by bringing pen delivery to insulin from vials.
People fill their own pen directly from an insulin vial, combining more accurate dosing and less painful injections than vial and syringe with the convenience, discretion and portability of a reusable insulin pen.
Endorsed
by healthcare leaders worldwide
Leading specialists in diabetes care, humanitarian medicine, and government health systems recognize GO-PEN®'s approach to closing the delivery gap.
“GO-PEN® is the most innovative concept that I have ever seen towards the needs of patients who take insulin using syringes”
— Anne Peters, Professor, Keck School of Medicine, USC, Los Angeles
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“The device has the potential to bring ease of use, dosing safety, and treatment adherence, to underserved populations.”
— Amylya Reddy, MD, NCD Specialist, Médecins Sans Frontières
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“I am very excited about GO-PEN® being available, especially in low- and middle-income countries where people really should have the option to be able to use the type of delivery device that they wish to. What stands out for me is that it's a universal device.”
— Nupur Lalvani, Founder of Blue Circle Foundation, India
The global
diabetes challenge
Addressing the inequity
While insulin pens have been available since the 1980s, cost barriers mean millions still rely on syringes, particularly in low- and middle-income countries where 86.9% of people with undiagnosed diabetes live.
GO-PEN addresses this gap by offering a reusable insulin pen for vials, helping broaden access to pen-based insulin delivery.
589 million adults worldwide live with diabetes, that's 1 in 11 people. 20+ million people with diabetes still use syringes instead of modern insulin pens. 252 million adults with diabetes remain undiagnosed globally. In 2024, over $1 trillion was spent on diabetes care, representing roughly 12% of global health expenditures. 3.4 million people died from diabetes-related causes in 2024.
Source: International Diabetes Federation. IDF Diabetes Atlas, 11th Edition.
It’s time
to move beyond syringes
For many people using insulin from vials, daily insulin injections still mean using a vial and syringe. GO-PEN offers a reusable insulin pen for vials, with more accurate dosing, less painful injections and a discreet, portable design.
Awards & recognitions
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GO-Pen was recognised for being the only insulin pen where people with diabetes can buy insulin in vials and fill their own reservoirs for use with an insulin pen. See press release
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In the diabetes devices category, GO-Pen was recognised for its vision is to make a difference for the millions of people living with diabetes who currently cannot afford modern devices. See news release
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GO-Pen was a finalist in the category Startup in the Sealand Region. See more.
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GO-Pen was a finalist in the category Social Entrepreneurship - Future Impact. See list.
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See interview (in Danish)
