Why pricing is not a risk to the GLP-1 market opportunity?

David K. Song, MD, PhD, CFA
By David K. Song, MD, PhD, CFA
Investment Partner
July 22, 2024

In a recent USA Today op-ed President Biden and Senator Sanders penned a stinging attack on the pricing of weight loss drugs calling the $1,100/month price tag “outrageous”. Drug pricing is a highly politicised issue, that is only going to heat up as we head to election. In the case of weight loss drugs, we believe such calls are unjustified. In this blog, we lay out five reasons why.

Drug pricing 101

Drug pricing is complicated but it is worth keeping these basic facts in mind:

  • GLP-1 drugs cost at list price $1,100 - $1,300 per month for Wegovy (Novo Nordisk) and Zepbound (Eli Lilly).
  • The actual price paid can be 40-50% lower because of discounts and rebates given to large commercial payers. This is called “gross to net”. The net price is what matters, although the gross price is what is often used in public discourse. 
  • Patients, where the drug is covered by an insurance company, often pay a co-pay which can be as low as a tens of dollars a month or as high as hundreds.
  • Government payers like Medicare and Medicaid tend to take their pricing with reference to commercial price negotiations. For Medicare, a big change is underway with the Inflation Reduction Act (IRA) which allows negotiations directly with manufacturers for the first time.

Is the net price of $5,000 - $6,000 per year justified for GLP-1 drugs?

We believe they are for the following reasons:

  1. Significant clinical benefit. GLP-1 drugs provide a significant proven clinical benefit. For example, in the 17,000-patient five-year SELECT study Wegovy was shown to reduce the risk from major cardiovascular events by 20%. This means fewer heart attacks, deaths, and hospitalizations. Significant benefits extend to areas like MASH[1] (metabolic dysfunction-associated steatohepatitis), chronic kidney diseases, obstructive sleep apnea, and control of blood glucose. As these benefits mount we believe the price becomes more and more justified.
  2. Quality of life improvement. Aside from treating these underlying obesity-related diseases, of which there are over 200, patients also experience large improvements in quality of life.
  3. Third party cost-effectiveness assessment. ICER[2], an independent body that assess the cost-effectiveness of drugs, found that “The health-benefit price benchmark range for semaglutide is $7,500 to $9,800 per year[3]. The current net price for both obesity treatments is below this level for cost-effectiveness.
  4. Large health economic savings. The USC’s Centre for Health Policy & Economics recently did a study assessing what coverage of weight loss drugs by private insurance and Medicare does in terms of cumulative cost savings to the Medicare system. These savings stem from fewer hospitalizations, surgeries, doctor’s visits, drugs, nursing home stays, and other associated costs. They found that over 30 years $1.5 trillion could be saved by Medicare alone. When looking at total social benefit, a broad definition that includes quality of life improvement measured by quality-adjusted life years (QALYs)[4], the figure reaches $6.7 trillion over 30 years[5].medicare-1Source: USC Schaeffer, Benefits of Medicare Coverage for Weight Loss Drugs, April 2023
  5. Comparable to other drugs. The pricing of weight loss drugs is actually similar to the price of other chronic disease drugs that address large populations (for example, PCSK9 inhibitors) but have a more narrow clinical benefit.

 

Summary

Although headlines about GLP-1 drug cost dominate, we believe the net price is justified due to the large clinical benefits and potential healthcare system savings these drugs bring.

Footnotes

1) Metabolic dysfunction-associated steatohepatitis (MASH) is inflammation of your liver caused by excess fat cells in it (steatotic liver disease). Chronic inflammation causes progressive liver damage. MASH resembles hepatitis caused by alcohol use, but it stems from something else.

 

2) The incremental cost-effectiveness ratio (ICER) is a statistic used in cost-effectiveness analysis to summarise the cost-effectiveness of a health care intervention. It is defined by the difference in cost between two possible interventions, divided by the difference in their effect.

 

3) ICER, Medications for Obesity Management: Effectiveness

 

4) Quality-adjusted life year (QALY) is a metric that measures the quality and quantity of life gained or lost through medical treatment. It's used to assess the effectiveness of interventions by considering their impact on a patient's well-being. QALYs are calculated by estimating how many years of life a patient has left after a treatment and weighting each year with a quality-of-life score. The quality-of-life score is based on a scale of 0 to 1, with perfect health valued at 1 and death valued at 0. Quality-of-life is often measured by a patient's ability to perform daily activities, and their freedom from pain and mental distress. 

 

5) USC Schaeffer, Benefits of Medicare Coverage for weight loss drugs

 

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