Partial Orphan Cancer Drugs : US Food and Drug Administration Approval, Clinical Benefit, Trials, Epidemiology, Price, Beneficiaries, and Spending

Copyright © 2024. Published by Elsevier Inc..

OBJECTIVES: The Orphan Drug Act (ODA) incentivizes drug development for rare diseases with limited sales potential. Partial orphans-drugs used to treat rare and common diseases-frequently turn into multi-billion dollar blockbusters. This study analyzes partial orphan cancer drugs' development, approval, and economics.

METHODS: 170 drugs with US Food and Drug Administration approval for 455 cancer indications were identified (2000-2021). 110 full, 22 partial, and 38 non-orphan drugs were compared regarding their approval, benefits, trials, epidemiology, price, beneficiaries, and spending with data from regulatory documents, Global Burden of Disease study, and Medicare and Medicaid.

RESULTS: Full orphans, relative to partial and non-orphans, were more frequently monotherapies for hematologic cancers supported by smaller single-arm trials treating diseases with a lower incidence and higher severity. The time from first to second indication approval was 1 year shorter for partial than full orphans. Full orphans offered a greater overall survival (median: 4.0 vs 2.8 vs 2.8 months, P < .001) and progression-free survival benefit (median: 5.1 vs 2.5 vs 3.6 months, P < .001). Monthly prices were higher for full and partial than non-orphan drugs (median: $17 177 vs $13 284 vs $12 457, P < .001). Beneficiaries (8790 vs 4390 vs 1730) and spending ($570 vs $305 vs $156 million) per drug were greater for partial than non-and full orphans.

CONCLUSIONS: Although partial orphans' benefits, trials, and economics are more similar to non-than full orphans, they receive all of the ODA's benefits and are swiftly extended to new indications; resulting in greater spending. A maximum ODA revenue/patient threshold could limit expenditure on partial orphans.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:27

Enthalten in:

Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research - 27(2024), 4 vom: 21. Apr., Seite 449-457

Sprache:

Englisch

Beteiligte Personen:

Michaeli, Thomas [VerfasserIn]
Michaeli, Daniel Tobias [VerfasserIn]

Links:

Volltext

Themen:

Antineoplastic Agents
Cancer drug
Clinical trial
Drug development
Drug spending
Epidemiology
Journal Article
Medicaid
Medicare
Orphan designation
Overall survival
Partial orphan
Pharmaceutical Preparations
Price
Progression-free survival
Rare diseases

Anmerkungen:

Date Completed 05.04.2024

Date Revised 25.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jval.2024.01.002

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367354780