Cost, Access ‘Significant Barriers’
All the cardiologists this news organization spoke with agreed that cost and access will be significant barriers to widespread prescribing, at least for now.
“Prescribing for individuals at very high cardiovascular risk will probably give a reasonable amount of bang for your buck. But individuals with more adverse social determinants of health, who are more likely to have challenges with obesity and related complications, are also least likely to be able to pay the exorbitant costs out of pocket. So, this is also an important health equity issue,” Dr. Ndumele says.
Furthermore, he adds, where GLP-1 RAs will fit for those with a lower absolute CVD risk “is still a clear question.”
“Access comes two ways,” Dr. Weintraub says. “One is the supply, which continues to be an issue. You can’t sell the drug if you don’t have it.”
The other access route is the insurance companies. “Will they throw down a gauntlet and make cardiologists prove that a patient failed other obesity drugs before they can prescribe a GLP-1 RA? Some of the old obesity drugs are not only unpleasant to use, but they’re ineffective and may have bad cardiac signals.”
If the new drugs are approved for secondary prevention, patients will want them and doctors will want them, he says. The demand will be “huge,” and it’s not clear how it will be handled.
Dr. Pandey agrees that getting the drug without “good insurance” to cover the cost is a big challenge. “ As more of these drugs become available, hopefully the cost will come down, and hopefully access will grow as companies are able to scale up production.”
Add-On or Substitute?
Anticipating approval, Dr. Yang says it’s not yet clear where the GLP-1 RAs stand among the various available cardiovascular therapies.
“Based on the results of SELECT, one could argue that maybe it’s more important to get the weight down and reduce blood pressure versus adding another cholesterol-lowering medication, for example, especially if a patient is already on a statin and ezetimibe. But maybe their low-density lipoprotein cholesterol is not exactly below the threshold of the current guideline. And maybe they’re overweight or prediabetic, and they can lose 10% or 15% of their body weight with a GLP-1 RA. You may have to pick and choose.”
That said, he adds, “Who’s going to be able to afford all of this? Some patients would be taking a PCSK9 inhibitor, bempedoic acid because their lipids are not optimized, then a GLP-1 receptor. Right there, we’re talking about at least $2000 a month for those three medications. That’s not feasible.”
“This is one of the things I’ve worried about, given all the drugs some of our patients are on,” Dr. Weintraub says. “The data on cholesterol-lowering drugs are so monumental, it’s hard to say you can do without it. The same is true of blood pressure-lowering medication. So to my mind, a GLP-1 RA is going to have to be an add-on.”
“The only good news is that unlike in the heart failure arena, patients are not paying for other drugs on top of it,” he says. “Statins, ACE inhibitors, ARBs, and beta-blockers are all generic; they’re not going to leave a huge hole in the patient’s pocket when the donut hole [Medicare payment gap] comes around. So in this case, if the GLP-1 RAs get included, which I hope they will, the added cost may not be that horrible.”