Diflunisal (1) – Attrogy®

Hereditary transthyretin amyloidosis with polyneuropathy (stage 1 or 2)

Characteristics

Start date 15.11.2025 – Marketing authorisation: 17.07.2025
Resolution 07.05.2026
INN Diflunisal
Brand name Attrogy®
Pharm. company Purpose Pharma International AB
G-BA Procedure ID D-1271
ATC code N02BA11 Salicylic acid and derivatives (N02BA)
ICD-10 codes (AIS) E85.1Amyloid polyneuropathy (Portuguese), E85.2Heredofamilial amyloidosis, unspecified, E85.4Localized amyloidosis, E85.9Amyloidosis, unspecified
Alpha-ID codes (AIS) I129348Hereditary transthyretin amyloidosis, I24316Amyloidosis, I2491Neuropathic heredofamilial amyloidosis, I66392Localized amyloidosis
Therapeutic area Metabolic diseases
Reason for procedure Initial assessment

Therapeutic indication of the resolution

Attrogy is used in adult patients with stage 1 or 2 polyneuropathy for the treatment of hereditary transthyretin-mediated amyloidosis (hATTR amyloidosis).

Subpopulation Indication Comparator
Erwachsene mit hereditärer Transthyretin-Amyloidose (hATTR-Amyloidose) mit Polyneuropathie der Stadien 1 oder 2

Studies and Results

  • Clinical trials
    • Study H-23750 is a randomised, double-blind, placebo-controlled Phase 3 trial.

Adults with hereditary transthyretin amyloidosis (hATTR amyloidosis) with stage 1 or 2 polyneuropathy

  • For adults with hereditary transthyretin amyloidosis with stage 1 or 2 polyneuropathy, the additional benefit is not proven.
  • Overall, based on the study submitted, additional benefit from diflunisal compared with the appropriate comparator therapy is not proven for adults with hereditary transthyretin amyloidosis with stage 1 or 2 polyneuropathy.
  • In its dossier for the assessment of the additional benefit of diflunisal, the pharmaceutical manufacturer does not provide any data directly comparing the drug with the appropriate comparator therapy.
  • The administration of placebo in the control arm of study H-23750 does not correspond to the appropriate comparator therapy.
  • The study submitted is therefore not suitable for assessing additional benefit due to the lack of comparison with the appropriate comparator therapy.

Courtesy translation only, please refer to the German original.

Associated procedures

Diflunisal (1) Attrogy® Purpose Pharma International AB Metabolic diseases Hereditary transthyretin amyloidosis with polyneuropathy (stage 1 or 2) 360 100% additional benefit not proven


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