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A clearer view of the milestones shaping peptide and GLP-1 medicines in the UK, US and EU: confirmed decisions, company targets and clearly labelled estimates, each with its source. What we track · How estimates are made.

Tirzepatide

Eli Lilly · GIP and GLP-1 receptor agonist · Peptide
Region
202220232024202520262027202820292030
UKMHRA
No verified events yet
EUEMA / European Commission
No verified events yet
Confirmed eventCompany targetRegulator targetEditorial estimateTiming unknown or undatedSafety update

Dashed line: today, 13 Sep 2026. Future windows are conditional. Approval, launch and funded access are separate milestones.

Confirmed · 20 Dec 2024United States

FDA approves Zepbound for moderate to severe obstructive sleep apnoea in adults with obesity

Supplement 13 to NDA 217806 approved on 20 December 2024: the first medicine approved to treat obstructive sleep apnoea, for adults with obesity, alongside diet and physical activity.

Why it matters. The workbook gave one date for both Zepbound indications; the sleep-apnoea indication is a separate event thirteen months later.

Event
Approval
Indication
Obstructive sleep apnoea (Moderate to severe OSA with obesity)
Product
Zepbound, once-weekly injection
Authority
FDA
Event date
20 Dec 2024
Published
13 Sep 2026
Last checked
13 Sep 2026
Record version
v1
US Food and Drug Administration (Drugs@FDA) ↗US Food and Drug Administration, 20 Dec 2024 ↗ Report a correction Follow Tirzepatide Confirmed

All Tirzepatide records (accessible list)

Tirzepatide

Once-weekly dual GIP and GLP-1 receptor agonist marketed for type 2 diabetes and weight management; Zepbound in the US also carries an obstructive sleep apnoea indication.

United Kingdom

No verified events recorded yet. Regulator: MHRA.

United States

· Approval Confirmed

FDA approves Mounjaro (tirzepatide) for type 2 diabetes

Mounjaro (once-weekly injection) · Type 2 diabetes (glycaemic control)

Original approval of NDA 215866 on 13 May 2022 to improve glycaemic control in adults with type 2 diabetes.

Why it matters: The first dual GIP and GLP-1 receptor agonist. Its weight-management use in the US is a separate product (Zepbound).

Source: US Food and Drug Administration (Drugs@FDA)

Last checked 13 Sep 2026 · Report a correction

· Approval Confirmed

FDA approves Zepbound (tirzepatide) for chronic weight management

Zepbound (once-weekly injection) · Chronic weight management

Original approval of NDA 217806 on 8 November 2023 for chronic weight management in adults with obesity, or overweight with a weight-related condition.

Why it matters: Same molecule as Mounjaro, separate US brand and application for the weight-management indication. In the UK and EU tirzepatide is marketed as Mounjaro for both uses.

Source: US Food and Drug Administration (Drugs@FDA)

Last checked 13 Sep 2026 · Report a correction

· Approval Confirmed

FDA approves Zepbound for moderate to severe obstructive sleep apnoea in adults with obesity

Zepbound (once-weekly injection) · Obstructive sleep apnoea

Supplement 13 to NDA 217806 approved on 20 December 2024: the first medicine approved to treat obstructive sleep apnoea, for adults with obesity, alongside diet and physical activity.

Why it matters: The workbook gave one date for both Zepbound indications; the sleep-apnoea indication is a separate event thirteen months later.

Sources: US Food and Drug Administration (Drugs@FDA); US Food and Drug Administration, 20 Dec 2024

Last checked 13 Sep 2026 · Report a correction

European Union

No verified events recorded yet. Regulator: EMA / European Commission.

This list is the complete, accessible view of the tracker; the board above draws from exactly the same records. Every entry is labelled Confirmed (official record), Company target (a dated sponsor statement), Regulator target (an official decision date, not a guarantee), GLPInfo estimate (an editorial range with assumptions) or Timing unknown. An approval is never inferred from a target date passing.