* Cel-Sci, a Vienna biotechnology company, said its net loss narrowed by $2.3 million in its fiscal third quarter as it concluded advanced human tests on its experimental cancer treatment. The company recorded a loss of $8.3 million (35 cents per share) for the quarter ended Sept. 30, compared with a loss of $10.7 million (51 cents) in the year-earlier period. It recorded grant revenue for the year of $384,939, compared with $293,871 in 2001. Cel-Sci's lead drug candidate, an injectable treatment called Multikine, is designed to trigger an aggressive immune response to tumors. Chief executive Geert R. Kersten said the 21-employee company could begin a final series of human tests for Multikine in the next year.

* Network Access Solutions, a Herndon high-speed Internet provider, closed the sale of its assets and subscriber lines to DSL.net of New Haven, Conn. DSL.net originally agreed to buy the assets in October and won approval for the $14 million deal in late December. Network Access Solutions has been operating under Chapter 11 bankruptcy protection since June.

* Via Net.Works, a Reston firm that provides Web hosting and Internet management services, said it named Fraser Park chief financial officer. Park previously worked as the chief financial officer of software firm RiverSoft. Via Net.Works has said it plans to move the company's headquarters to England.

* Optical Cable, a Roanoke company that makes fiber-optic cable, said it repurchased about 1.4 million shares of its common stock from A.G. Edwards & Sons for $2 per share. The repurchase represents more than 21 percent of Optical Cable's outstanding common shares. The firm said it paid for the $3 million purchase with cash and borrowings under its credit facility. Shares of Optical Cable closed at $2.70, up 30 cents.

Compiled from reports by Washington Post staff writers and Dow Jones News Service