For Immediate Release

PHARMION LAUNCHES FIRST U.S. PRODUCT

New Sales Force Will Market Innohep -- tinzaparin sodium injection -- to Hematologists and Oncologists

October 3, 2002

BOULDER, Colo.-- Pharmion Corporation enters the world's largest pharmaceutical marketplace this week with the launch of its first commercial product in the United States, Innohep® (tinzaparin sodium injection). Using its newly formed U.S. commercial field force, Pharmion will market the product to the U.S. hematology and oncology communities.

Innohep® is a once-daily low molecular weight heparin for the treatment of acute symptomatic deep vein thrombosis (DVT) with or without pulmonary embolism when administered in conjunction with warfarin sodium (such as Coumadin®) in hospitalized patients. The product is currently approved in 55 countries and has been used for over 11 years to treat approximately 12 million patients worldwide (estimated based on number of units sold). Global sales of Innohep® were approximately $100 million in 2001.

"Innohep® is an excellent product for our first offering to U.S. hematologists and oncologists," said Patrick J. Mahaffy, president and chief executive officer of Pharmion. "It delivers the high therapeutic impact we want our products to provide, and we believe it represents an important therapeutic option for cancer patients who develop DVT as a consequence of their disease or treatment."

Although Innohep® is Pharmion's first product marketed in the U.S., it is the fourth product acquired since the company's founding in January 2000. Pharmion also has the global rights to azacitidine, acquired from Pharmacia Corporation in June 2001; the rights in Europe and Australia for THALOMID® (thalidomide), acquired from Celgene in November 2001, and the rights in all countries outside the U.S. for Refludan® from Schering AG in June 2002.

Pharmion obtained U.S. rights to Innohep® from LEO Pharma of Denmark in July 2002. The U.S. rights were originally licensed to DuPont Pharmaceuticals by LEO Pharma in 1998. The product received U.S. Food and Drug Administration (FDA) approval in July 2000 and was initially launched in the U.S. in October 2000. Following acquisition of DuPont Pharmaceuticals by Bristol-Myers Squibb in January 2002, Innohep® rights were returned to LEO Pharma. Under the agreement with LEO, Pharmion will pursue additional clinical development for the product as well.

DVT, a blood clot (thrombus) that develops most commonly in one of the major veins in the leg and inhibits or blocks blood flow, is a potentially life-threatening condition that affects up to five percent of American adults. In the United States alone, approximately two million people develop DVT annually, and an estimated 600,000 of these develop pulmonary embolism, a potentially fatal complication in which the blood clot breaks off and obstructs blood flow to the arteries of the lungs. Research shows that pulmonary emboli are a major contributory factor in some 10 percent of all hospital deaths.

DVT is a major complication in orthopedic, pelvic, abdominal and thoracic surgical patients, as well as those with other chronic diseases such as congestive heart failure, lung disease and diabetes. In addition, cancer patients have an especially high risk of DVT. Studies indicate that thrombosis is one of the most frequent complications and the second leading cause of death in patients with known cases of cancer.

"Deep venous thrombosis and pulmonary embolism are major causes of morbidity and mortality in the cancer patient population," said Steven R. Deitcher, M.D., head of the Section of Hematology and Coagulation Medicine at The Cleveland Clinic Foundation. "Greater attention to effective treatment of thrombosis in these patients is needed. Innohep® has proven efficacy for DVT in cancer patients and can be easily added to their overall treatment."

In two pivotal studies, 22 percent and 8 percent of Innohep® (tinzaparin sodium injection) patients had cancer.

In controlled clinical trials comparing treatment with Innohep® to standard heparin therapy, including a landmark study of 435 hospitalized patients with symptomatic proximal DVT published in the New England Journal of Medicine, Innohep® was shown to be as safe and effective as heparin for the treatment of DVT with or without pulmonary embolism when administered in conjunction with warfarin sodium. In addition, studies indicate that Innohep® significantly reduces the risk of major bleeding compared with intravenous heparin. The absolute risk reduction was 1.9 percent during the initial treatment period. There was no statistical significance in the long-term reduction of bleeding at Day 90. The 95 percent confidence interval (CI) of the difference in major bleeding event rates was 0.33 percent, 3.47 percent.

Innohep® is convenient for patients. It is formulated for once-a-day administration and is dosed based on body weight. No dose adjustments are required for elderly or obese patients. Consistent with expected age-related changes in renal function, elderly patients and patients with renal insufficiency may show reduced elimination of Innohep®. Innohep® should be used with care in these patients.

Spinal or epidural hematomas can occur with the associated use of low molecular weight heparins and spinal/epidural anesthesia or spinal puncture, which can result in long-term or permanent paralysis. The risk of hematomas is increased by the use of postoperative indwelling epidural catheters or by the concomitant use of drugs affecting hemostasis such as NSAIDs, platelet inhibitors or other anticoagulants. Patients should be frequently monitored for signs and symptoms of neurological impairment. If neurological compromise is noted, urgent treatment is necessary. Please see Full Prescribing Information.

Patients with active major bleeding, patients with (or a history of) heparin-induced thrombocytopenia, or patients with known sensitivity to heparin, tinzaparin sodium injection (or any of its constituents) or pork products should not be treated with Innohep®. Innohep® should be used with extreme caution in conditions with increased risk of hemorrhage.

Bleeding is the most common adverse event associated with Innohep® (tinzaparin sodium injection) and can occur in any tissue or organ. The most common adverse events in controlled clinical trials with Innohep® were injection site hematomas (16 percent), abnormal elevations of AST (8.8 percent) and ALT (13 percent), urinary tract infection (3.7 percent), pulmonary embolism (2.3 percent) and chest pain (2.3 percent). Other bleeding events associated with Innohep® at a frequency of greater than or equal to 1 percent were epistaxis (1.9 percent), hemorrhage (1.5 percent), hematuria (1 percent) and thrombocytopenia (1 percent).

Innohep® cannot be used interchangeably (unit for unit) with heparin or other low molecular weight heparins as they differ in manufacturing process, molecular weight distribution, anti-Xa and anti-IIa activities, units and dosage. Each of these medications has its own instructions for use. Please see Full Prescribing Information for Innohep®.

About Pharmion

Pharmion is a global specialty pharmaceutical company focused on developing and marketing hematology and oncology products with high therapeutic impact. The company is headquartered in Boulder, Colo. with additional offices in Overland Park, Kans., Australia, Thailand and the United Kingdom. For additional information, please visit Pharmion's web site at www.pharmion.com.

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