Market access risk in endocrinology and metabolism
No field has tested the limits of what health systems will pay for as sharply as this one. The new obesity and diabetes medicines work in a way that was unimaginable a decade ago, and they are wanted by more people than any health system can afford to treat at launch prices — so the reimbursement question has become a question of who, how long, and at what point the budget says no. Beside that debate sits a quieter one: rare hormonal and bone disorders, growth conditions of childhood, and lifelong replacement therapies, each judged on a few hundred patients and decades of treatment. This page brings together MARA's independent assessments of reimbursement risk across the field; obesity has its own deep-dive page beneath it.
What payers ask in endocrinology and metabolism
Is weight loss a benefit payers pay for? Many health systems have historically treated obesity as a lifestyle matter rather than a disease, and some still exclude weight-loss medicines from coverage altogether. Where they do pay, they ask for the outcomes behind the kilograms — fewer heart attacks, less diabetes, less joint surgery — and reimburse the groups where that evidence exists.
How many people, for how long, at what price? The eligible population for an obesity or diabetes medicine can be a tenth of the adult population. Payers answer that arithmetic with eligibility thresholds, prior authorisation, limited treatment periods and price negotiations harder than anywhere else in medicine — the budget decides before the evidence does.
What happens when treatment stops? Weight returns when the medicine stops, and growth or hormone disorders need treatment for years. Payers want stopping rules, maintenance data and evidence of persistence, because a drug that must be taken for life is priced as one — and a drug that patients abandon within a year is paid for without the benefit.
For the rare conditions, what is the comparison? Rare endocrine diseases often have no treated comparator, only the natural course of the disease. Payers ask how growth, bone, or hormone levels would have moved without the drug, how long the follow-up runs, and whether the measured change is one the patient feels — the standard questions of orphan reimbursement, applied to children.
The MARA record in endocrinology and metabolism
Endocrinology and metabolism holds more than twenty dated assessments in the MARA catalogue: the obesity and type 2 diabetes medicines in their injectable and oral forms, growth hormone replacement in children, acromegaly, achondroplasia, rare phosphate and thyroid-hormone disorders, and osteoporosis after the menopause. Each report answers the same payer questions, carries its "as of" date, and stays on the record — when the evidence moves, a newer vintage replaces the older one visibly, never silently. Assessments are produced on MARA's own initiative for awareness; the current MARA Rating for any drug is available on request.
Deep-dive: Market access risk in obesity
Current assessments (20)
- Emcitate / Tiratricol for Peripheral Thyrotoxicosis in MCT8 Deficiency as of October 2026
- Insulin efsitora alfa for Adults With Type 2 Diabetes as of August 2026
- Wegovy / semaglutide for weight Management in Adults With Obesity or Overweight and at Least One Weight-Related Comorbidity as of June 2026
- Paltusotine for maintenance Treatment of Acromegaly in Adults as of June 2026
- Foundayo / orforglipron for managing overweight and obesity as of June 2026
- Yuviwel / navepegritide for in Pediatric Achondroplasia With Open Epiphyses as of May 2026
- Cagrilintide and semaglutide (cagrisema) for treating Obesity and Overweight With Obesity-Related Comorbidities as of February 2026
- Retatrutide for the treatment of obesity as of January 2026
- Tirzepatide for managing overweight and obesity as of September 2025
- Mounjaro / tirzepatide for treating type 2 diabetes as of September 2025
- Survodutide for obesity treatment as of July 2025
- Cagrilintide-semaglutide for treating obesity with or without type 2 diabetes as of July 2025
- Orforglipron for obesity and Type 2 Diabetes as of July 2025
- Retatrutide for obesity ± Metabolic Disorders as of July 2025
- Somapacitan for treating growth hormone deficiency in people 3 to 17 years as of June 2025
- Abaloparatide for treating osteoporosis after menopause as of August 2024
- Crysvita / burosumab for treating X-linked hypophosphataemia in adults as of August 2024
- Wegovy / semaglutide for managing overweight and obesity as of September 2023
- Somatrogon for treating growth disturbance in children and young people aged 3 years and over as of February 2023
- Romosozumab / evenity for treating severe osteoporosis in people after menopause who are at high risk of fracture as of May 2022
Earlier assessments (each replaced by a newer version)
- Paltusotine for treating adult acromegaly in the US, EU five, and Japan as of February 2026
- Mounjaro / tirzepatide for managing overweight and obesity as of December 2024
- Mounjaro / tirzepatide for treating type 2 diabetes as of October 2023
Selected commentary
- Retatrutide: the most effective weight-loss result seen to date — the access question has not been asked yet
- Compounders maintain a firm grip on the GLP-1 market
- Lilly obesity pill, headed for quick FDA review, hits mark in maintenance trial
- Novo combination obesity shot meets goal in diabetes trial
- How cost and perception could reshape the GLP-1 market
For how a MARA Rating is built, see the methodology and what a MARA Rating is. To request the current rating for any drug in this area, use the contact form.