Next steps
This study is ongoing, and patients will be followed for 5 years. Dr. Pipe said the main focus of follow-up will be to determine if patients maintain durable expression of FIX.
A phase 3 trial of etranacogene dezaparvovec is ongoing as well. The trial, HOPE-B (NCT03569891), is fully enrolled, and dosing is planned for 55 patients.
“We’re looking forward to data analysis later this year,” Dr. Pipe said. “This will be the only phase 3 study, and really the only platform so far, that is not planning to exclude patients based on preexisting immunity.”
If all goes well in the phase 3 study, etranacogene dezaparvovec could be approved by the Food and Drug Administration very soon, Dr. Pipe added.
UniQure, the company developing etranacogene dezaparvovec, is planning to submit the biologics license application to the FDA next year. Etranacogene dezaparvovec was granted breakthrough designation from the FDA and is therefore eligible for priority review, so the gene therapy could be approved as early as 2021.
The phase 2b trial of etranacogene dezaparvovec is sponsored by uniQure. Dr. Pipe disclosed relationships with uniQure and other companies.
SOURCE: Pipe SW et al. EAHAD 2020, Abstract OR10.