CagriSema is Novo Nordisk's fixed-combination cagrilintide + semaglutide obesity drug — the company's bid to push the GLP-1 efficacy ceiling higher by adding amylin biology on top of the GLP-1 backbone.
The REDEFINE-1 and REDEFINE-2 Phase 3 trials read out across 2025 and 2026. The February 23, 2026 head-to-head readout against tirzepatide was the inflection point: 23% mean weight loss on CagriSema 2.4/2.4 mg vs 25.5% on tirzepatide 15 mg over 84 weeks, missing the non-inferiority primary endpoint and dropping NVO 15% intraday. Novo's Q1 2026 disclosures (May 6) confirmed a higher-dose CagriSema Phase 3 trial will start in H2 2026, but also disclosed that the company has discontinued the single-chamber co-formulation device project 'due to portfolio considerations' — the dual-chamber injectable system continues, the original FDA filing has been submitted, and a decision is expected late 2026. ECO 2026 in Istanbul (May 12–15) will deliver additional CagriSema data alongside Wegovy 7.2 mg and the Wegovy pill.
Stories here cover the REDEFINE readouts, the regulatory path, and the broader amylin-add-on field. See #cagrilintide for the amylin component and #amylin for class context.
The European Association for the Study of Diabetes (EASD) 62nd Annual Meeting in Milan September 28 through October 2, 2026 sets up the September obesity-peptide catalyst calendar and is anchored on the amylin agonist class. AstraZeneca will present Phase 2 APRICUS data (AZD6234 amylin analog monotherapy in obesity) plus the Phase 2b ASCEND readout (AZD6234 plus AZD9550 GLP-1/glucagon dual agonist combination against placebo over 36 weeks, 377 patients). Zealand Pharma and Roche will present petrelintide ZUPREME-2 data (obesity plus type 2 diabetes) with Phase 3 monotherapy initiation planned late 2026. Novo Nordisk will present amycretin (long-acting GLP-1/amylin dual agonist) plus CagriSema follow-through data. The EASD readout window coincides with Roche's Pharma Day September 28 (updates on petrelintide, enicepatide, HM17321). Ascendis Pharma may also provide TransCon CNP achondroplasia updates. The clustered amylin data will position the class for late-2026 and 2027 regulatory and Phase 3 initiation decisions.
The European Association for the Study of Diabetes (EASD) 62nd Annual Meeting takes place in Milan September 28 through October 2, 2026, and sets up the largest single September catalyst window for obesity-peptide investor and clinical interest. AstraZeneca will present Phase 2 data on AZD6234 (selective amylin receptor peptide agonist) monotherapy from APRICUS plus the ASCEND Phase 2b combination with AZD9550 GLP-1/glucagon dual agonist. Zealand Pharma and Roche will present petrelintide (amylin analog) data from ZUPREME-2 (obesity plus type 2 diabetes) with the Phase 3 monotherapy program preparing to initiate late 2026. Novo Nordisk will present amycretin (long-acting GLP-1/amylin dual agonist) plus CagriSema follow-through data. The EASD calendar coincides with the Roche Pharma Day investor event on Monday September 28, 2026 that will update on the top-three-obesity-portfolio (petrelintide, enicepatide, HM17321). Ascendis Pharma is also expected to provide TransCon CNP achondroplasia updates.
Roche (SIX: ROG) is scheduled to hold its investor Pharma Day Monday September 28, 2026, providing updates across the R&D portfolio including three obesity assets that collectively position the company as the credible third-place global obesity competitor behind Eli Lilly and Novo Nordisk. Petrelintide (amylin analog, partnered with Zealand Pharma under the March 2025 up-to-$5.3 billion collaboration, Phase 3 monotherapy initiation planned late 2026 following ZUPREME-1's 10.7% weight loss at 42 weeks). Enicepatide (CT-388, dual GLP-1/GIP receptor agonist acquired from Carmot Therapeutics in 2023, 54% obesity resolution at 24 mg in Phase 2). HM17321 (urocortin-2 / CRFR2 receptor agonist peptide licensed from Hanmi Pharm on August 24, 2026 with $190 million upfront plus up to $2.3 billion in milestones plus tiered royalties). The Roche Pharma Day coincides with the EASD 2026 Annual Meeting Milan September 28 through October 2, where AstraZeneca will present AZD6234 Phase 2 data, Zealand Pharma will present petrelintide data, and Novo Nordisk will present amycretin and CagriSema updates.
Novo Nordisk (NYSE: NVO) shares fell approximately 6% Thursday August 13, 2026 on broker downgrade citing continued franchise-gap pressure from Eli Lilly's tirzepatide franchise (Mounjaro + Zepbound) and the CagriSema head-to-head miss against tirzepatide. Specifics: CagriSema (cagrilintide 2.4 mg plus semaglutide 2.4 mg fixed-dose combination) reached 23.0% weight loss at 84 weeks versus tirzepatide 15 mg's 25.5% in the REDEFINE 4 head-to-head Phase 3 trial published in early August 2026. The August 4 H1 2026 earnings release raised full-year 2026 sales guidance to down 3% from a prior down 8% midpoint at constant exchange rates. The broader investor narrative continues to focus on Novo's ability to defend GLP-1 franchise economics against Eli Lilly's Q2 2026 $23 billion revenue blowout (+48% year-over-year), Foundayo (orforglipron) $98 million first commercial quarter, and retatrutide's 28.7% Phase 3 TRIUMPH-4 weight loss result at 68 weeks. Analyst attention now shifts to Novo's Wegovy 7.2 mg higher-dose FDA review, the amycretin oral amylin monotherapy Phase 1b program (roughly 22% weight loss at Week 36), and next-generation candidates in Novo's pipeline. Investors are also watching the CagriSema FDA decision expected late 2026 and whether the label expansion strategy can offset the competitive pressure.
Viking Therapeutics (NASDAQ: VKTX) disclosed on the July 29, 2026 Q2 2026 earnings call that VK3019, a novel dual amylin and calcitonin receptor agonist peptide for obesity, has entered Phase 1 clinical development. The candidate extends the company's obesity pipeline beyond the flagship VK2735 (dual GLP-1/GIP agonist). VK2735 status: Phase 3 VANQUISH program in obesity and obesity/type 2 diabetes is fully enrolled and advancing on track; oral VK2735 Phase 3 trials are slated to initiate in Q4 2026, positioning Viking as a potential first-to-market oral dual GLP-1/GIP agonist. A novel maintenance dosing study for VK2735 is nearing completion, with results expected later in Q3 2026 exploring less frequent dosing regimens. Q2 2026 financials: net loss widened to $128.1 million from $65.6 million in Q2 2025 on increased R&D spending, with $502 million in cash and short-term investments down from $706 million at year-end 2025. VK3019 is mechanistically distinct from VK2735: amylin signaling adds brainstem-mediated satiety (via the calcitonin receptor complex with RAMPs) on top of a calcitonin receptor agonism that has a longer development history in postmenopausal osteoporosis (Miacalcin) and Paget's disease. The amylin plus calcitonin combination extends the amylin-analog obesity category anchored by Novo Nordisk's cagrilintide (a component of CagriSema) and the Novo amycretin oral amylin monotherapy program.
Novo Nordisk released detailed data from the REDEFINE 4 head-to-head 84-week Phase 3 trial of CagriSema (cagrilintide 2.4 mg + semaglutide 2.4 mg fixed-dose combination) versus tirzepatide 15 mg. Trial design: 809 randomized adults with obesity and one or more comorbidities with mean baseline body weight of 114.2 kg, both drugs administered once weekly subcutaneously over 84 weeks. Primary endpoint results: CagriSema 23.0% weight loss versus tirzepatide 25.5% (treatment-policy estimand); CagriSema 20.2% versus tirzepatide 23.6% (treatment-regimen estimand). The trial missed the primary non-inferiority endpoint on weight loss for CagriSema compared to tirzepatide at 84 weeks. CagriSema safety profile was generally well-tolerated. The trial result complicates the Novo commercial positioning of CagriSema as its tirzepatide-beating differentiated response, though the FDA decision on the CagriSema obesity indication remains expected late 2026 based on the REDEFINE 1 and REDEFINE 2 pivotal trials submitted December 18, 2025. The head-to-head result adds to the widening Lilly-Novo franchise gap: Lilly Q2 2026 Mounjaro + Zepbound reached $14.9 billion in the quarter, while Novo H1 2026 sales reached 78.49 billion Danish kroner ($12.09 billion).
Novo Nordisk's experimental CagriSema (cagrilintide plus semaglutide fixed-dose combination) reportedly failed to control blood sugar as effectively as Eli Lilly's tirzepatide (Mounjaro/Zepbound) in a head-to-head Phase 3 trial of patients with type 2 diabetes. CagriSema regulatory filing was submitted December 18, 2025 with an expected FDA decision in late 2026 for obesity indication; the type 2 diabetes head-to-head failure complicates the commercial narrative and label-expansion strategy. The trial outcome adds to the widening Lilly-Novo franchise gap documented across the Q2 2026 earnings week: Eli Lilly (NYSE: LLY) Q2 revenue reached $23 billion (+48% year-over-year) with Foundayo (orforglipron oral small-molecule GLP-1) delivering $98 million in its first fully operational commercial quarter and Mounjaro + Zepbound combined at $14.9 billion; Novo Nordisk H1 2026 sales reached 78.49 billion Danish kroner ($12.09 billion, +3% constant currency) with shares declining 5% on margin-compression concerns despite raised guidance. Investor narrative on Novo's ability to defend GLP-1 franchise economics continues to deteriorate as the amylin analog (cagrilintide) that Novo positioned as its differentiator against tirzepatide's dual GIP/GLP-1 mechanism failed to close the efficacy gap in the head-to-head setting.
Novo Nordisk closed 3.46% lower Monday June 8 as investor attention focused on Lilly's clear ADA win and on CagriSema's failure to demonstrate non-inferiority against a competitor on some obesity endpoints. CVS Caremark's earlier formulary tilt toward Lilly's Zepbound (announced in late May, effective October 1) and the broader oral GLP-1 picture compound the pressure. Novo's Wegovy pill remains the only US-approved oral, but the next-wave pipeline narrative now skews to Lilly.
Novo Nordisk presented the full REIMAGINE 1/2/3 Phase 3 program in a Sunday symposium at ADA 2026, with simultaneous publication in The Lancet Diabetes & Endocrinology (REIMAGINE 1 and 2) and The Lancet (REIMAGINE 3). REIMAGINE 2 (n=2,713; 68 weeks) showed CagriSema 2.4/2.4 mg producing 14.2% weight loss and 1.91% HbA1c reduction versus 10.2% and 1.75% for semaglutide 2.4 mg alone. REIMAGINE 1 (n=189; 40 weeks) showed 13.8% weight loss and 1.8% HbA1c drop vs placebo. REIMAGINE 3 (n=274) showed 12.0% weight loss and a 2.33% HbA1c drop when added to basal insulin.
Novo Nordisk hosted its R&D investor event in New Orleans on Sunday June 7, the same day as the CagriSema and zenagamtide readouts. The pipeline conversation centered on the combination strategy that pairs CagriSema and zenagamtide with the Wegovy injection and Wegovy pill, plus IcoSema and the FGF21 analog efruxifermin in MASH. Across 40 ADA abstracts, the company is reframing itself from a single-product GLP-1 leader to a multi-mechanism cardiometabolic pipeline.
At ADA 2026, Novo Nordisk reported full Phase 3 REIMAGINE 2 data for CagriSema (cagrilintide plus semaglutide fixed-dose combination) in 2,728 adults with type 2 diabetes inadequately controlled on metformin with or without an SGLT2 inhibitor. Over 68 weeks, CagriSema 2.4 mg/2.4 mg produced superior HbA1c reduction of 1.91 percentage points and 14.2% mean weight loss, both better than the semaglutide 2.4 mg, cagrilintide 2.4 mg, and placebo comparator arms. The readout is the first head-to-head Phase 3 win for the dual amylin/GLP-1 combination over its individual components.
Ahead of the ADA Scientific Sessions (June 5-8, New Orleans), Novo Nordisk previewed 40 abstracts spanning pivotal Phase 3 CagriSema in the REIMAGINE type 2 diabetes program, new mid-stage data for the amylin/GLP-1 agonist zenagamtide (the molecule previously called amycretin), and IcoSema and semaglutide analyses. Novo said its obesity and diabetes products reached 45.3 million patients by March 2026, with obesity up 58% year over year, and will host an R&D investor event June 7.
Industry commentary May 22 framed Novo Nordisk's strategic response to retatrutide's TRIUMPH-1 readout as a two-track amylin strategy. CagriSema (cagrilintide 2.4 mg + semaglutide 2.4 mg) is the near-term play — Phase 3 REDEFINE-1 and REDEFINE-2 complete, FDA filing under review with decision expected late 2026, and Novo positioning the safety profile as the competitive edge after REDEFINE-4 missed non-inferiority versus tirzepatide 15 mg in February 2026. Amycretin (dual GLP-1/amylin agonist) is the long-term bet — AMAZE-12 Phase 3 began recruiting May 18 testing the dual agonist for weight maintenance, with Phase 1 results showing 22% weight loss at 36 weeks weekly subcutaneous and 13.1% at 12 weeks oral. The CagriSema higher-dose Phase 3 starts H2 2026; REDEFINE-11 reads out H1 2027. Combined, the amylin axis is structurally Novo's most direct response to Lilly's triple-agonist mechanism — adding amylin tone (slower gastric emptying, satiety persistence, weight-maintenance) rather than competing on glucagon-driven energy expenditure.
Novo Nordisk's CagriSema REDEFINE 1 cardiovascular sub-analyses, presented at ECO 2026 on Thursday May 14, layered onto the May 12 body-composition data. At week 68, CagriSema (cagrilintide 2.4 mg + semaglutide 2.4 mg) reduced systolic blood pressure by 10.9 mmHg vs 8.8 with semaglutide alone and 2.1 with placebo. High-sensitivity C-reactive protein dropped 68.9% vs 55.4% (semaglutide) and 16.0% (placebo). The 10-year predicted atherosclerotic cardiovascular disease risk decreased meaningfully on CagriSema versus all comparators, with fewer participants on CagriSema falling into the intermediate-to-high-risk category. The sub-analyses sharpen the combination-therapy case beyond the 22.7% mean weight-loss headline.
A second body-composition substudy from REDEFINE 1 presented May 14 at ECO 2026 broke out the DXA subgroup by treatment arm. At week 68, CagriSema (cagrilintide 2.4 mg + semaglutide 2.4 mg) produced -23.9% weight reduction in the DXA subgroup, compared with -16.6% on semaglutide 2.4 mg alone, -15.0% on cagrilintide 2.4 mg alone, and -2.8% on placebo. The fat-mass-to-lean-tissue ratios were favorable across all active arms: 66.9% fat-mass contribution on CagriSema, 69.7% on semaglutide, 62.9% on cagrilintide. The cagrilintide monotherapy arm is the first head-to-head body-composition signal for amylin-only therapy at clinically meaningful weight-loss levels — relevant to Zealand and Roche's petrelintide Phase 3 program and the broader amylin-versus-incretin debate.
Novo Nordisk's CagriSema REDEFINE 1 treatment-target analysis presented as an oral presentation at ECO 2026 on May 12 reported that the cagrilintide + semaglutide combination drove a higher percentage of participants to clinically meaningful BMI and waist-to-height ratio (WHtR) targets than any monotherapy or placebo arm. 50.7% of CagriSema-treated participants reached BMI <30 at week 68 vs 10.2% on placebo, and participants reaching BMI <27 plus WHtR <0.53 showed normalization of cardiometabolic parameters at higher rates than non-achievers. A companion REDEFINE 1 cardiovascular risk analysis scheduled for May 14 ECO presentation tracks predicted atherosclerotic CVD risk reduction. The data complements the May 12 body-composition substudy (35.7% fat-mass loss vs 14.4% lean tissue loss).
A prespecified body-composition substudy of REDEFINE 1 presented at ECO 2026 reported that 252 participants on CagriSema 2.4 mg/2.4 mg (semaglutide + cagrilintide) achieved a 35.7% relative reduction in fat mass and a 14.4% reduction in lean soft-tissue mass at week 68 — compared with 5.7% and 4.3% on placebo. The headline 22.7% mean weight reduction in REDEFINE 1 (NEJM publication June 2025) thus broke down with a fat-mass-to-lean-tissue ratio of roughly 2.5:1, a more favorable body-composition profile than the typical 1.5-2:1 ratio reported for GLP-1 monotherapy. The data builds the case for combination amylin-GLP-1 therapy as preferentially fat-selective.
Novo Nordisk CEO Mike Doustdar told CNBC May 6 that the Wegovy brand now holds 65% of all new US GLP-1 prescriptions and characterized the moment as a 'turnaround situation' for the franchise. The Q1 print also disclosed that Novo has terminated the single-chamber CagriSema co-formulation project 'due to portfolio considerations' — the dual-chamber injectable system continues, with the original FDA filing already submitted and a decision expected late 2026. The CEO insisted plans for the CagriSema launch remain on track despite the device change. CNBC also documented LifeMD's new-patient volume jumping from 300–400/day before the Wegovy pill launch to 600–1,000/day after.