J&J Complete Response Letter on Darzalex Faspro
FDA has issued Johnson & Johnson a complete response letter (CRL) for its supplemental BLA for Darzalex Faspro (daratumumab and hyaluronidase-fihj) in a quadruplet regimen in patients with newly diagnosed, transplant-ineligible multiple myeloma. The CRL is based on observations from facility inspections and is not related to any safety and efficacy data submitted in the application, according to the company. No new clinical studies were requested.
The company says Darzalex Faspro remains fully approved and commercially available for all nine of its existing U.S. indications in multiple myeloma, and the company emphasized that global supply and distribution are unaffected. The rejected application sought approval for use in a quadruplet regimen with bortezomib, lenalidomide, and dexamethasone, based on data from the Phase 3 CEPHEUS trial. It notes that the same indication was recently approved by the European Commission, and regulatory submissions in other international markets are ongoing.
The Phase 3 CEPHEUS study demonstrated that patients receiving the Darzalex Faspro-based regimen showed statistically significant improvements in minimal residual disease (MRD) negativity, progression-free survival, and complete response rates compared to standard therapy, J&J says. The study results were presented at the 2024 International Myeloma Society’s annual meeting and published in Nature Medicine.
Darzalex Faspro is the subcutaneous version of daratumumab, co-formulated with Halozyme’s ENHANZE delivery technology. It was first approved in the U.S. in 2020 and is currently authorized for nine indications, including frontline treatment for newly diagnosed multiple myeloma patients who are either transplant-eligible or ineligible.