Jake will then review the financial results for the Fourth Quarter and Full Year 2025 and share our preliminary thoughts for Fiscal Year 2026. We made the decision to end our Patch Pump Program, and we executed a restructuring plan aimed at enhancing our profitability and free cash flow. With this, 100% of our revenue now flows through our systems, and all TSAs and LSAs that we had at spin have been exited. Together, the completion of these separation and stand-up activities have freed up capacity, which we are now devoting to initiatives that we anticipate will help transition the company towards long-term sustainable growth.
Several of these partners have already signed agreements and placed purchase orders, and our products are included in multiple GLP-1 partner-managed regulatory submissions expected to lead to commercial launches. With leverage now at 2.9 times net debt to adjusted EBITDA, we continue to create financial flexibility to invest in potential organic and inorganic opportunities that can reshape Embecta's long-term growth profile. Now, let's review our revenue performance for the Fourth Quarter and Full Year. During the Fourth Quarter of Fiscal Year 2025, Embecta generated $264 million in revenue, reflecting a 7.7% decline year-over-year on an as-reported basis or a 10.4% decline on an adjusted cost and currency basis.
Within the U.S., revenue for the quarter totaled $142 million, reflecting a year-over-year decline of 15.2% on an adjusted cost and currency basis. The year-over-year decline was primarily driven by an unfavorable comparison to the prior year Fiscal Fourth Quarter, which benefited from additional distributor orders that occurred because of the then looming U.S. Turning to our international business, revenue for the Fourth Quarter totaled $122 million, representing an increase of 2.8% on a reported basis, but a decline of 4% on an adjusted cost and currency basis. The year-over-year decline in pen needle revenue was driven by the same factors that impacted our U.S.
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