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BioWorld - Tuesday, March 17, 2026
Home » Topics » Regulatory » Orphan drug

Orphan drug
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Molecule illustration

Otsuka’s repinatrabit shows phase II efficacy in PKU adolescents

March 13, 2026
By Marian (YoonJee) Chu
No Comments
Otsuka Pharmaceutical Co. Ltd. reaped positive results from an open-label phase II study of repinatrabit (JNT-517) in adolescents with phenylketonuria (PKU), a rare disease marked by the inability to break down the amino acid phenylalanine.
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Magnifying glass, clock and capsules

FDA’s rare disease toolbox not fully used

March 4, 2026
By Mari Serebrov
No Comments
At the current pace of innovation in the U.S. rare disease space, developing and approving therapies for just half of the 10,000-plus known rare diseases would take more than 160 years, Bradley Campbell, president and CEO of Amicus Therapeutics Inc., recently told the Senate Committee on Aging.
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Red and white roadblock

Experts: Regulatory roadblocks stalling rare disease therapies

March 3, 2026
By Mari Serebrov
No Comments
A lot of distance lies between talking regulatory flexibility and actually being flexible. That message was driven home again after Uniqure NV disclosed in its latest earnings report March 2 that the U.S. FDA wants a sham-controlled study before it will consider approval of the company’s gene therapy AMT-130 in Huntington’s, a rare disease currently affecting about 41,000 people in the U.S.
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DNA double helix under a magnifying glass
Endocrine/metabolic

Tessera’s TSRA-196 designated orphan drug for AATD

Feb. 24, 2026
No Comments
Tessera Therapeutics Inc.’s lead in vivo gene editing program, TSRA-196, has been awarded orphan drug and fast track designations by the FDA for adults with α-1 antitrypsin deficiency (AATD).
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3D illustration of heart cross section
Cardiovascular

Affinia’s AFTX-201 designated EU orphan drug

Feb. 19, 2026
No Comments
Affinia Therapeutics Inc.’s AFTX-201 has been awarded orphan drug designation by the EMA for BAG3-associated dilated cardiomyopathy.
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Drug capsule and dollar sign

US CMS names its choices for third round of price negotiations

Jan. 28, 2026
By Mari Serebrov
No Comments
The pressure on U.S. drug prices continues, with the CMS lining up the drugs for round 3 of negotiations, which will set maximum fair prices to go into effect in 2028. The slate includes 15 drugs and, for the first time, opens the negotiations to Part B drugs, as well as Part D. Consequently, seven of the 15 selected drugs are biologics.
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DNA double helix illustration with section being removed in red
Neurology/psychiatric

Adolore’s CA8* gene therapy designated orphan drug

Jan. 16, 2026
No Comments
Adolore Biotherapeutics Inc. has announced that the FDA has granted orphan drug designation to the company’s Kv7-activating rdHSV-CA8* gene therapy for treatment of primary and secondary erythromelalgia.
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Endocrine/metabolic

FDA clears Askbio’s IND for AB-1009 for late-onset Pompe disease

Jan. 9, 2026
No Comments
Askbio Inc., a subsidiary of Bayer AG, has received IND clearance from the FDA for AB-1009, an AAV gene therapy being developed for the treatment of late-onset Pompe disease.
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Cancer

Arbele’s ARB-1002 designated orphan drug for pancreatic cancer

Jan. 8, 2026
No Comments
Arbele Pte Ltd.’s ARB-1002 has been awarded orphan drug designation by the FDA for the treatment of pancreatic cancer. ARB-1002 is an antibody-drug conjugate comprising an anti-CDH17 monoclonal antibody chemically linked to a potent cytotoxic agent.
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Missing puzzle piece and broken DNA chain
Endocrine/metabolic

Immusoft’s ISP-002 designated US orphan drug for MPS II

Dec. 16, 2025
No Comments
Immusoft of CA Inc., a wholly owned subsidiary of Immusoft Corp., has announced that the FDA has granted orphan drug designation to ISP-002, the company’s investigational engineered B-cell therapy for the treatment of mucopolysaccharidosis type II (MPS II), also known as Hunter syndrome.
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