REPH ACQUISITION TO NEGOTIATE PESCH MERGER BID REPH Acquisition Co said its board appointed a special committee to negotiate the terms of an offer made earlier today by <Pesch and Co> to merge with its Republic Health Corp <REPH> unit. Pesch, through its Alpha Health Systems Corp unit, offered to acquire the 36 pct of Republic Health stock that it does not already own. Terms of Pesch's offer have not been disclosed.