Financial Results
Revenues
Total net product revenues were $22.8 million and $42.2 million for the quarter and six months ended June 30, 2024, which represented an increase of 10% and 3%, respectively, over $20.8 million and $41.0 million in the comparable periods of 2023.
DANYELZA total net product revenues of $22.8 million in the second quarter of 2024, represented a 10% increase compared to the second quarter of 2023, primarily driven by increased international revenues. Y-mAbs’ international DANYELZA net product revenues were $7.6 million for the three months ended June 30, 2024, an increase of 55% over $4.9 million in the comparable period in 2023. The increase of net product revenue in the quarter ended June 30, 2024, compared to the quarter ended June 30, 2023, was a result of increased volume from Western Europe, as well as the commercial launch for Brazil and Mexico in Latin America. U.S. DANYELZA net product revenues were $15.2 million and $15.9 million for the three months ended June 30, 2024 and 2023, respectively, representing a 4% decline driven by a volume decrease due to the launch of competing therapy in another class of agents and some ongoing clinical trial activities.
The Company’s total net product revenue was $42.2 million for the six months ended June 30, 2024, as compared to $41.0 million in the comparable period in 2023. The 3% increase was primarily driven by a $1.2 million increase in the U.S. DANYELZA net product revenue in the six months ended June 30, 2024, while international net product revenue was relatively flat.
As of June 30, 2024, Y-mAbs has delivered DANYELZA to 65 centers across the U.S. since initial launch, with two new accounts added in the U.S. in the second quarter of 2024. During the quarter ended June 30, 2024, approximately 67% of the vials sold in the U.S. were sold outside of Memorial Sloan Kettering Cancer Center (“MSK”), compared to 60% in the first quarter ended March 31, 2024.
The Company did not have license revenue for the quarters ended June 30, 2024 and 2023. The Company had license revenues of $0.5 million for the six months ended June 30, 2024, from our distribution partner, Adium, related to our acceptance of the price for DANYELZA in Brazil from the Brazilian Medicines Market Regulation Chamber. There was no license revenue recorded for the six months ended June 30, 2023.
Operating Costs and Expenses
Cost of Goods Sold
Cost of goods sold was $3.0 million and $4.6 million for the quarter ended June 30, 2024 and 2023, respectively. Cost of goods sold was $5.1 million and $6.7 million for the six months ended June 30, 2024 and 2023, respectively. The Company defines gross margin as net product revenues less cost of goods sold divided by net product revenues. Our gross margins increased in the three and six months ended June 30, 2024, compared to the comparable periods in 2023, due to a favorable gross profit mix from lower vial volumes from our international regions.
Research and Development
Research and development expenses were $12.3 million for the quarter ended June 30, 2024, and relatively flat compared to $12.1 million for the quarter ended June 30, 2023. For the six months ended June 30, 2024 and 2023, research and development expenses were relatively flat at $25.6 million and $25.5 million, respectively.
Selling, General, and Administration
Selling, general, and administrative expenses were $17.2 million for the three months ended June 30, 2024, which was a $5.9 million increase compared to $11.3 million for the three months ended June 30, 2023. The increase was primarily attributable to a net impact of $3.6 million related to the Company’s settlement of a shareholder class-action lawsuit, which is the net impact of the Company’s $19.7 million accrued legal settlement, less the corresponding insurance recovery of $16.1 million and an additional legal settlement of $0.2 million in the three months ended June 30, 2024.