People with insulin-treated type 1 diabetes who had problems avoiding hypoglycemic episodes despite optimal care were helped significantly by a new psychoeducational program called HARPdoc, it was reported at the annual meeting of the European Association for the Study of Diabetes.
In a randomized controlled trial (RCT), both HARPdoc and the more established Blood Glucose Awareness Training (BGAT) were effective at reducing the number of severe hypoglycemia episodes seen, from five episodes at baseline to one at 1 year in both groups, and one and none at 2-years’ follow-up, respectively.
“HARPdoc is not superior to BGAT in its ability to restore hypoglycemia awareness and reduce severe hypoglycemia,” said Stephanie Amiel, MD, FRCP, the chief investigator for the trial. However, “it does reduce cognitive barriers to hypoglycemia avoidance, so it achieves what it set out to do.”
Dr. Amiel, professor of diabetes research at Kings College London, added that it was important to note that HARPdoc was better than BGAT at improving participants’ mental health, “producing a clinically important and sustainable reduction in diabetes distress, anxiety, and depression.”
What’s HARPdoc?
The Hypoglycaemia Awareness Restoration Programme for people with type 1 diabetes and problematic hypoglycaemia persisting despite optimised self-care (HARPdoc) was designed to specifically address why some people with type 1 diabetes find it difficult to avoid recurrent hypoglycemia.
“It’s a psychoeducational program with clinical knowledge about hypoglycemia and group learning, but also explicit topics on mindset and behavior change,” explained Nicole de Zoysa, DClinPsych, one of the clinical psychologists involved in the trial.
Over the course of the 6-week program, there are four group sessions (weeks 1-3, and week 6) and two individual sessions (weeks 4 and 5) that address important “cognitive barriers” or “thinking traps” to avoiding hypoglycemia that were identified during prior qualitative research.
HARPdoc is thus “an attempt to make sense of people’s reluctance or seeming reluctance to take action around hypoglycemia, Dr. de Zoysa said. The intervention draws on both cognitive behavioral theory “to work with the beliefs” and motivational interviewing “to work with the resistance.”
The HARPdoc RCT
Starting in 2017 and ending earlier this year, the HARPdoc RCT was a parallel group study conducted at three specialist diabetes centers in the United Kingdom and one in the United States.
A total of 99 adults with insulin-treated type 1 diabetes and impaired hypoglycemia awareness were enrolled – with 49 randomized to the HARPdoc arm and 50 to the BGAT arm. All had been offered technologies to help them potentially bring their hypoglycemia under better control, such as continuous glucose monitoring, insulin pumps, or closed loop systems, and received structured education on flexible insulin dosing.
The aim was to show superiority of the HARPdoc program over BGAT, in helping people avoid episodes of severe hypoglycemia, defined as episodes that needed other people’s intervention to help resolve.
BGAT is also a psychoeducation program that has been around since the 1980s but barely used in the United Kingdom, Dr. Amiel noted.
Baseline demographic characteristics were similar for the HARPdoc and BGAT arms: The mean age was 57 versus 52 years, there was a long (30+ years) duration of diabetes, over half of the participants were male, and almost all were White.