Bristol-Myers Squibb (NYSE:BMY) said today that it has agreed to sell $1.5 billion of senior unsecured notes in an underwritten public offering.

The offering includes $750 million in  1.6% senior notes due in 2019 and $750 million in 3.3% senior notes due in 2027, according to the New York-based company.

Bristol-Myers said it plans to use the proceeds from the offering to fund its share repurchase program, as well as for general corporate purposes.

Goldman Sachs & Co., Morgan Stanley & Co., Merrill Lynch and others are acting as joint book-running managers.

In December, Bristol-Myers landed an exclusive licensing agreement for PsiOxus Therapeutics‘ ‘armed’ oncolytic virus, NG-348, for the treatment of solid tumors.

According to the agreement, the biopharmaceutical giant will pay PsiOxus $50 million upfront and will assume responsibility for global clinical development and commercialization. PsiOxus will be eligible for $886 million in development, regulatory and sales-based milestones. Bristol-Myers will be responsible for funding the preclinical development of NG-348.

Oncolytic virus therapy makes use of modified viruses that replicate only within tumor cells and stimulate an inflammatory response in the tumor microenvironment. UK-based PsiOxus arms the virus with 2 immuno-therapeutic transgenes using its tumor-specific immuno-gene therapy platform (T-SIGn).

In June 2016, the 2 companies collaborated to study PsiOxus’ ‘unarmed’ oncolytic adenovirus therapeutic, enadenotucirev.