The past year brought about significant advances in type 1 diabetes (T1D) therapies that are improving how people live with the disease and bringing us closer to a biological cure and universal advances that have helped make this a pivotal moment in the history of T1D research.
The JDRF Encapsulation Program funds development of cell-replacement therapies that can be implanted to provide long-term relief from insulin dosing without the need for immune suppression. To learn more about JDRF’s Encapsulation Program, please click here.
Encapsulated cell therapies advance to human trials
Two JDRF industry partners, ViaCyte and Beta-O2, took their experimental therapies into human clinical trials in late 2014
• In October 2014, JDRF industry partner ViaCyte launched a human clinical trial of its groundbreaking encapsulated cell therapy for treatment of T1D. The study marks the first-ever clinical evaluation of a stem-cell-derived islet replacement therapy. Once implanted, the encapsulated islet progenitor cells should develop over time into islets with the potential to restore normal insulin function in people with T1D.
• At least four volunteers with T1D have received VC-01, the company’s experimental implant, to date.
• JDRF enabled the clinical trial of a second novel encapsulated cell therapy in October 2014 with the launch of Israel-based-company Beta-O2’s pilot human study of BAir.
• The device features two ports which inject oxygen to nourish and support the islets their survival and optimal function.
Two approaches to developing readily available supplies of implantable islet cells make headway
JDRF-supported researchers made significant progress this past year developing methods for converting human stem cells into mature insulin-producing islets. Once fully developed, these techniques should deliver plentiful supplies of mature islets for use in encapsulated cell therapies that become functional relatively shortly after implantation.
• Doug Melton, Ph.D., of Harvard University has developed a method for rapidly converting human stem cells into insulin-producing cells in the lab.
• Timothy Kieffer, Ph.D., at the University of British Columbia has developed a novel protocol for rapidly converting human embryonic stem cells into insulin-producing cells.
• JDRF funding supports both Dr. Kieffer’s and Dr. Melton’s research.
• JDRF’s Encapsulation Consortium will be creating experimental encapsulated cell therapy products that should be useful in using these new sources of beta cells.
JDRF’s Artificial Pancreas (AP) Program supports the development of novel technologies that deliver more effective and precise insulin therapy. These automated systems will provide tighter control of blood-sugar levels and significantly reduce the need for frequent glucose testing and manual insulin dosing. To learn more about JDRF’s AP Program, please click here.
New devices move toward the marketplace
Medtronic’s New MiniMed 640G made history with Australian launch
• After receiving early research and development support from JDRF, in February 2015 Medtronic brought to market the MiniMed 640G, the first pLGS system capable of suspending insulin dosing based on software that can predict when blood sugar will become too low.
• A four year old Australian boy was the first to receive the device, which is now also available in Denmark and the UK and is moving toward approval in the U.S.
Medtronic’s MiniMed 670G pushes the AP timeline
• In early 2015, Medtronic announced plans to bring to market the first hybrid system with the ability to automatically start and stop insulin delivery based on predicted blood-sugar levels.
• This hybrid closed-loop system will still require meal bolusing, but it will make life easier by automatically adjusting insulin delivery 24 hours a day, reducing the occurrence of hypoglycemic and hyperglycemic events.
• Medtronic announced that the MiniMed 670G will most likely be available in debut markets in 2017.
Device data sharing technology aims for better T1D management
Tidepool devises a data platform to connect people with T1D and their caregivers around the clock
• In September 2014, JDRF and Silicon Valley-based nonprofit Tidepool partnered to complete development of an app that will allow people using insulin pumps and continuous glucose monitors (CGMs) to upload and share their data with family members and healthcare providers.
• The data-sharing technology will help reduce the burden of managing T1D by allowing consistent remote data sharing with caregivers.
Dexcom Share CGM transmitter allows real-time sharing of blood-glucose data
• JDRF industry partner Dexcom launched the G4© Platinum CGM System with Share. Share is a wireless transmitter that communicates data via Bluetooth to a mobile phone app.
• The Food and Drug Administration (FDA) approved the Dexcom Share device in October 2014. As a part of the funding arrangement, Dexcom distributed a prototype version of this transmitter to members of the JDRF AP Consortium for use in designing experimental AP systems.
The JDRF Glucose Control Program supports the development of novel insulin formulations and drugs that can be used in conjunction with insulin therapy to provide better control of blood-sugar levels. To learn more about JDRF’s glucose control research program, please click here.
Mannkind’s Afrezza inhaled insulin shows promise as a good partner to AP system
In summer 2014, JDRF industry partner Mannkind received FDA approval for Afrezza, a rapid acting inhaled insulin that can be used at the beginning of meals to more tightly control the rise in blood sugar levels that occur after eating.
• A JDRF-supported study published in the Journal of Diabetes Science and Technology’s May 2015 issue showed that use of Afrezza as a mealtime bolus in conjunction with an experimental AP system significantly increased the percentage of time that people using the system stayed in ideal blood-glucose range.
Research moves forward on a novel formulation for glucose responsive insulin
JDRF-support researcher Danny Chou, Ph.D., at the University of Utah made progress in developing a glucose-responsive insulin that self-activates when blood sugar begins to rise.
• This glucose responsive insulin is being designed for delivery through a non-invasive system and could possibly require only a single daily dose, giving people with T1D a more convenient, effective and safer form of administered insulin.
JDRF is exploring ways to restore the body’s ability to produce insulin while preventing the autoimmune attack that triggers T1D and would trigger the destruction of new beta cells. To learn more about JDRF’s Restoration Program, please click here.
JDRF-supported researchers build momentum on repurposing existing drugs for treatment of T1D
Verapamil, a generic drug, shows promise in saving beta cells
• A JDRF-supported human clinical trial testing whether the common blood pressure drug verapamil can improve beta cell health and survival began in February 2015 at the University of Alabama, Birmingham. The study is part of JDRF’s strategy to speed development of new T1D therapies by repurposing drugs that are already FDA approved for other indications.
• The trial participants will receive either verapamil or a placebo for one year while continuing insulin pump therapy, and researchers will track their blood-sugar control and C-peptide levels to measure any impact on beta cell numbers and related insulin production.
The JDRF Prevention Program aims to keep individuals, from ever developing T1D.
JDRF is pursuing both primary and secondary prevention strategies:
1. Primary prevention means literally preventing the autoimmune attack so people never develop T1D.
2. Secondary prevention is focused on finding ways to prevent insulin dependence in individuals where the autoimmune attack on beta cells has already begun.
To learn more about JDRF’s Prevention Program, please click here.
Pre-POINT study looks to reduce T1D with a children’s vaccine
In April 2015, JAMA published results from the Pre-POINT trial, a four-year, JDRF-funded international clinical trial to investigate the ability of daily doses of oral insulin to induce molecular signatures in the blood that may be associated with preventing T1D associated autoimmunity JDRF is always looking for ways to stall or prevent T1D and this study could lead to one of those solutions. The preventive oral insulin treatment is intended to stop the development of diabetes autoantibodies in children with high genetic risk. The aim of the study was to find the most appropriate dose for accomplishing this goal.
• The findings could lead to another clinical trial of the proposed intervention, further exploring the dose and age range of children that can be treated.
Scientists learn gut microbiome may hold the key to the beginnings of T1D
JDRF-funded researchers at Harvard, MIT and Massachusetts General Hospital and in Finland published a study in the February issue of Cell, Host and Microbe identifying a link between changes in gut bacteria and the onset of T1D.
• They found that in some young children a change in normal intestinal bacteria can occur a year before T1D diagnosis.
• This discovery could lead to an early diagnostic test for T1D and development of therapies that prevent the development of symptomatic T1D.
Classification of Early Stages of T1D
JDRF initiated a medical-community review of current T1D staging criteria and establishes a working agreement to revamp these criteria to define and include earlier stages of the disease.
• Currently, you either have symptomatic T1D or don’t, which does not fully capture the fact that the disease is present prior to it being symptomatic, which can be identified with risk screening today
• Diagnosing a person with T1D during the asymptomatic phase of the disease would have implications for research, drug development, and regulatory guidelines for clinical trials, as well as awareness of the disease which should limit DKA at diagnosis.
Fr1da Study is launched to screen healthy children for T1D in Bavaria
JDRF partnered with the German government and Institute for Diabetes Research Munich, Germany, in January 2015 to launch Fr1da, the first population-based screening for T1D in healthy 3 and 4 year olds.
As the incidence of T1D rises worldwide, Fr1da attempts to investigate the early stages of development of the disease and identify new pathways to prevent it.
• The study aims to achieve early diagnosis and intervention for children living with T1D.
JDRF’s Complications Program supports development of therapies and prognostic tools that help prevent, treat or reverse diabetes-related eye and kidney diseases. To learn more about JDRF’s Complications Program, please click here.
Drugmaker KalVista gains ground in creating a novel drug for fighting T1D-related vision loss
JDRF industry partner KalVista received FDA approval in late summer 2014 to begin a phase 1 human clinical trials of its experimental drug for treatment for diabetic eye disease.
• The ongoing trial is staggering enrollment of 17 volunteers who are receiving three intravitreal injections of KalVista’s novel drug candidate over a roughly three-month period in an effort to slow the progression of diabetic eye disease.
• Researcher expect to complete the trial in July 2015
These advances don’t happen overnight and the associated costs are high. All of our advances are the result of years of teamwork, collaboration and support of research aimed at preventing, treating and ultimately curing T1D.