Fran Cogen Archives

Empowering Type 1 diabetes management with new technology

February 12, 2024

The iLet Bionic Pancreas was recently cleared by the U.S. Food and Drug Administration (FDA) and is now commercially available.

In 2021, Children’s National Hospital participated in a multi-center clinical trial to test the efficacy of the iLet Bionic Pancreas — a device that automatically regulates blood sugar levels in patients with Type 1 diabetes. The iLet Bionic Pancreas was recently cleared by the U.S. Food and Drug Administration (FDA) and is now commercially available.

“The bionic pancreas serves as an additional resource empowering patients to effectively manage their Type 1 diabetes with confidence,” says Fran Cogen, M.D., CDCES, director emerita of the Childhood and Adolescent Diabetes Program at Children’s National. “It requires minimal input from the patient.”

During initialization of the pump, patients will no longer need to enter carbohydrate amounts, just their weight. After the patient indicates whether they are having a usual meal, smaller than usual meal, or larger than usual meal, the device’s algorithms will adjust insulin doses automatically.

“Patients will not need to add correction insulin,” says Dr. Cogen. “There are 3 algorithms – one to adjust background insulin, one to adjust insulin needed to cover carbohydrates and one to adjust insulin needed to correct high blood sugars. The background insulin dosing will also be adjusted if the blood sugars decrease or become low.”

The FDA approved the iLet Bionic Pancreas for patients 6 years and older with Type 1 diabetes. Users will be required to pair the pump with a continuous glucose monitor as the pump is dependent on the monitor’s information. The results of the trial, primarily funded by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health, were published in the New England Journal of Medicine.

Multicenter trial finds bionic pancreas improves Type 1 diabetes management

September 29, 2022

Compared to other available artificial pancreas technologies, the bionic pancreas requires less user input and provides more automation because the device’s algorithms continually adjust insulin doses automatically.

A device known as a bionic pancreas, which uses next-generation technology to automatically deliver insulin, was more effective at maintaining blood glucose levels within normal range than standard-of-care management among people with Type 1 diabetes, a new multicenter clinical trial found.

The trial, conducted partly at Children’s National Hospital, was primarily funded by the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), part of the National Institutes of Health, and published in the New England Journal of Medicine.

Automated insulin delivery systems – also called artificial pancreas or closed-loop control systems – track a person’s blood glucose levels using a continuous glucose monitor and automatically deliver the hormone insulin using a pump. These systems replace reliance on insulin delivery by multiple daily injections, pumps without automation and testing glucose levels using more labor-intensive systems, such as fingersticks.

“A diagnosis of Type 1 diabetes can be overwhelming for a child and their family,” said Fran Cogen, M.D., C.D.C.E.S., principal investigator at Children’s National and director of the Childhood and Adolescent Diabetes Program. “It is extremely important to monitor and manage glucose levels throughout the day to prevent serious complications like eye problems, kidney disease, heart and blood vessel disease. This new technology may give patients and families a sense of relief from some of the daily stressors that come with the diagnosis of this chronic disease.”

Compared to other available artificial pancreas technologies, the bionic pancreas requires less user input and provides more automation because the device’s algorithms continually adjust insulin doses automatically. Users of the bionic pancreas also do not have to count carbohydrates, nor initiate doses of insulin to correct for high blood glucose. In addition, healthcare providers do not need to make periodic adjustments to the device’s settings.

The 13-week trial, conducted at Children’s National and 15 other U.S. clinical sites, enrolled 326 participants ages 6 to 79 years who had Type 1 diabetes and had been using insulin for at least one year. Participants were randomly assigned to either a treatment group using the bionic pancreas device or a standard-of-care control group using their personal pre-study insulin delivery method.

The study found:

In participants using the bionic pancreas, glycated hemoglobin improved from 7.9% to 7.3%, yet remained unchanged among the standard-of-care control group.
The bionic pancreas group participants spent 11% more time within the targeted blood glucose range compared to the control group.
Results were similar in youth and adult participants.
Improvements in blood glucose control were greatest among participants who had higher blood glucose levels at the beginning of the study.

Hyperglycemia caused by equipment problems was the most frequently reported adverse event in the bionic pancreas group. The number of mild hypoglycemia events and frequency of severe hypoglycemia were not different in the two groups.

“The results of this study will bring hope to patients, families and providers that there are technologies being created to help ease the burden of diabetes management and keep glucose levels more stable,” said Kimberly Boucher, M.S.H.S., B.S.N., R.N., clinical research manager of Endocrinology at Children’s National.

The study is one of several pivotal trials funded by NIDDK to advance artificial pancreas technology and look at factors including safety, efficacy, user-friendliness, physical and emotional health of participants, and cost. To date, these trials have provided the important safety and efficacy data needed for regulatory review and licensure to make the technology commercially available. The Jaeb Center for Health Research in Tampa, Florida, served as coordinating center.

Funding for the study was provided by NIDDK grant 1UC4DK108612 to Boston University, by an Investigator-Initiated Study award from Novo Nordisk, and by Beta Bionics, Inc., which also provided the experimental bionic pancreas devices used in the study. Insulin and some supplies were donated by Novo Nordisk, Eli Lilly, Dexcom and Ascensia Diabetes Care. Partial support for the development of the experimental bionic pancreas device was provided by NIDDK SBIR grant 1R44DK120234 to Beta Bionics, Inc.

You can read the full study, Multicenter, Randomized Trial of a Bionic Pancreas in Type 1 Diabetes, in the New England Journal of Medicine.

Supporting parents and children through diabetes diagnosis

September 1, 2022

Behavioral intervention can improve parents’ mood following their child’s diabetes diagnosis.

Results from a new study show that behavioral intervention improved parents’ mood following young children’s Type 1 diabetes diagnosis.

The study evaluated First STEPS, a stepped-care behavioral intervention designed to support parents’ psychosocial functioning and promote children’s glycemic outcomes. Results indicated likely benefits of parent coach support, supplemented by intervention intensifications, including behavioral intervention and diabetes education.

“We found that parent coaches, or parents of slightly older children with Type 1 diabetes who were trained in offering peer support, were helpful in reducing parent depressive symptoms up to one year and a half following diagnosis for parents in the stepped care group,” says Randi Streisand, Ph.D., C.D.C.E.S., Psychology and Behavioral Health division chief at Children’s National Hospital and senior author of the study. “The second study target, child glycemic control, was not significantly different between the two groups.”

What’s been the hold-up in the field?

There are unique challenges facing families of young children with Type 1 diabetes. However, typical care and management guidelines are not specific to young children.

“Many parents of children diagnosed with diabetes experience distress and symptoms of depression, yet parents are not routinely screened during clinic visits,” Dr. Streisand says. “Further, there are many barriers to mental health support.”

Moving the field forward

Findings also highlighted the potential for training lay people who have a shared lived experience (parent coaches), which could be incorporated into clinical programs.

Most behavioral interventions use behavioral health experts. The study’s experts demonstrated significant outcomes in parent mood by using parent coaches.

“The goal would be to incorporate parent coach programs into the clinic setting, to either offer the support to all families at the time of diagnosis or to screen families and provide support to those in need,” Dr. Streisand adds.

The authors affirm this model has high potential for patient engagement. Additionally, results showed that incorporating targeted behavioral support for intensive diabetes treatment may maximize intervention impact.

Other Children’s National authors include: Carrie Tully, Ph.D.; Christine Wang, Ph.D.; Lauren Clary, Ph.D.; Fran Cogen, M.D.; John Barber and Celia Henderson.

You can read the full study First STEPS: Primary Outcomes of a Randomized, Stepped-Care Behavioral Clinical Trial for Parents of Young Children With New-Onset Type 1 Diabetes in Diabetes Care.

Diabetes clinic helps undocumented children manage their chronic condition

February 6, 2020

A diabetes clinic gives undocumented children with diabetes access to the care they need to maintain their health with this chronic condition.

In 2018, Jennifer Boughton, a social worker at Children’s National Hospital, came up with the idea of starting a diabetes clinic for patients whose immigration status prevented them from qualifying for insurance. The idea came about after undocumented children were arriving in the emergency department with high blood sugar and dangerously elevated ketone levels.

Through donations and the employees, who volunteer their time, Boughton’s idea became a reality. In January of 2019, the diabetes center held its first access clinic. The clinic has been open every three months since then for undocumented children with diabetes.

Flyers for the clinic are sent to local schools and organizations to help recruit patients.

In the first year, the patient volume has quadrupled and the hbA1c levels have decreased for patients who attend.

Read more about the Diabetes Access Clinic here.

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What’s been the hold-up in the field?

Moving the field forward