which we believe indicates good demand for Eversense in the marketplace. We’re looking forward to launching in the EU and bringing this revolutionary CGM option to more patients with diabetes.”
Fourth Quarter 2024 Results:
Total revenue for the fourth quarter of 2024 was $8.3 million compared to $8.0 million for the fourth quarter of 2023. U.S. revenue was $6.2 million for both the fourth quarter of 2024 and 2023, and revenue outside the U.S. was $2.1 million in the fourth quarter of 2024 compared to $1.8 million in the prior year period.
Fourth quarter 2024 gross profit of $4.0 million compared to gross profit of $1.1 million for the fourth quarter of 2023. The increase in gross profit was primarily driven by increased margins on the 365-day product, but does include the impact of approximately $1.6 million in manufacturing costs previously expensed to research and development expenses prior to FDA approval of the 365-day product.
Fourth quarter 2024 selling, general and administrative expenses increased by $1.5 million year-over-year, to $8.9 million. The increase was primarily driven by personnel costs, consulting fees and legal expenses.
Fourth quarter 2024 research and development expenses decreased by $1.4 million year-over-year, to $9.4 million. The decrease was primarily due to a reduction in clinical studies spend and consultant costs due to the completion of 365-day product trials.
Net loss was $15.5 million, or a $0.02 loss per share, in the fourth quarter of 2024 compared to net loss of $17.2 million, or a $0.03 loss per share, in the fourth quarter of 2023. Net loss decreased by $1.7 million primarily due to improved gross profit margins of Eversense 365.
Full Year 2024 Results:
Total revenue for 2024 was $22.5 million compared to $22.4 million in 2023. U.S. revenue was $15.3 million in 2024 compared to $14.1 million in 2023, and revenue outside the U.S. was $7.2 million in 2024 compared to $8.3 million in 2023.
Gross profit for 2024 was $0.5 million, a decrease from $3.1 million in 2023. The decrease in gross profit was primarily driven by $4.8 million in one-time charges as the result of the transition from Eversense E3 to Eversense 365, partially offset by an estimated reduction of $1.6 million in pre-approval manufacturing costs previously expensed to research and development expenses.
Selling, general and administrative expenses for 2024 increased by $4.3 million year-over-year, to $34.2 million. The increase was primarily driven by personnel costs, consulting fees and legal expenses.
Research and development expenses for 2024 decreased by $7.6 million year-over-year, to $41.1 million. The decrease was primarily due to a reduction in clinical studies spend and other research costs due to the completion of 365-day product trials. These savings were partially offset by pre-approval inventory costs associated with the manufacturing of the 365-day product.
Net loss was $78.6 million, or a $0.12 loss per share, in 2024 compared to net loss of $60.4 million, or a $0.11 loss per share, in 2023. Net loss increased by $18.2 million primarily due to a reduction in gains due to the exchange of outstanding convertible notes and gains driven by changes in the fair value of derivatives.
Cash, cash equivalents and restricted cash were $74.9 million and outstanding indebtedness was $56.2 million as of December 31, 2024. Subsequent to the end of the fourth quarter, the remaining outstanding