RESEARCH TRIANGLE PARK, N.C. - BioCryst Pharmaceuticals, Inc. (Nasdaq: BCRX) announced that Swissmedic has granted marketing authorization for oral, once-daily ORLADEYO (berotralstat) for the routine prevention of recurrent hereditary angioedema (HAE) attacks in patients 12 years and older in Switzerland.

'ORLADEYO offers people with HAE in Switzerland and their physicians the first orally administered non-steroidal therapy for preventing HAE attacks and provides the community with another vitally important treatment option,' said Henrik Balle Boysen, executive vice president and chief operating officer of HAE International, a global non-profit network of patient associations dedicated to improving the lives of people with HAE.

'We have made significant progress in making ORLADEYO available to many patients in Europe since we received European Commission approval of our oral, once-daily prophylactic therapy last year,' said Waldemar Heiduk, chief executive officer of BioCryst Pharma Deutschland GmbH. 'With today's announcement, we look forward to launching ORLADEYO in Switzerland soon, pending finalization of our reimbursement plans.'

ORLADEYO was safe and well tolerated in clinical trials. The most frequently reported adverse reactions in patients receiving ORLADEYO compared with placebo were gastrointestinal reactions. These reactions generally occurred early after initiation of treatment with ORLADEYO, became less frequent with time and typically self-resolved.

About ORLADEYO (berotralstat)

ORLADEYO (berotralstat) is the first and only oral therapy designed specifically to prevent attacks of hereditary angioedema (HAE) in adult and pediatric patients 12 years and older. One capsule of ORLADEYO per day works to prevent HAE attacks by decreasing the activity of plasma kallikrein.

U.S. Indication and Important Safety Information

INDICATION

ORLADEYO (berotralstat) is a plasma kallikrein inhibitor indicated for prophylaxis to prevent attacks of hereditary angioedema (HAE) in adults and pediatric patients 12 years and older.

Limitations of use

The safety and effectiveness of ORLADEYO for the treatment of acute HAE attacks have not been established. ORLADEYO should not be used for the treatment of acute HAE attacks. Additional doses or dosages of ORLADEYO higher than 150 mg once daily are not recommended due to the potential for QT prolongation.

IMPORTANT SAFETY INFORMATION

An increase in QT prolongation was observed at dosages higher than the recommended 150 mg once-daily dosage and was concentration dependent.

The most common adverse reactions (?10% and higher than placebo) in patients receiving ORLADEYO were abdominal pain, vomiting, diarrhea, back pain, and gastroesophageal reflux disease.

A reduced dosage of 110 mg taken orally once daily with food is recommended in patients with moderate or severe hepatic impairment (Child-Pugh B or C) and in patients taking chronically administered P-glycoprotein (P-gp) or breast cancer resistance protein (BCRP) inhibitors (eg, cyclosporine).

Berotralstat is a substrate of P-gp and BCRP. P-gp inducers (eg, rifampin, St. John's wort) may decrease berotralstat plasma concentration, leading to reduced efficacy of ORLADEYO. The use of P-gp inducers is not recommended with ORLADEYO.

ORLADEYO at a dose of 150 mg is a moderate inhibitor of CYP2D6 and CYP3A4. For concomitant medications with a narrow therapeutic index that are predominantly metabolized by CYP2D6 or CYP3A4, appropriate monitoring and dose titration is recommended. ORLADEYO at a dose of 300 mg is a P-gp inhibitor. Appropriate monitoring and dose titration is recommended for P-gp substrates (eg, digoxin) when coadministering with ORLADEYO.

The safety and effectiveness of ORLADEYO in pediatric patients

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