CCC Information Services Inc. and Mitchell International, Inc. have called off a planned merger after a federal judge granted a Federal Trade Commission (FTC) request for a preliminary injunction.

Chicago-based CCC and San Diego-based Mitchell International both provide information and technology solutions to the insurance claims and automotive repair industries.

The FTC said that on Nov. 25, 2008, it filed suit in the U.S. District Court for the District of Columbia to block the merger on the basis that the transaction "would hinder competition in the market for electronic systems used to estimate the cost of collision repairs, known as "estimatics," and the market for software systems used to value passenger vehicles that have been totaled, known as total loss valuation systems."