Extended indication

Congenital (or hereditary) Thrombotic Thrombocytopenic Purpura (cTTP)

Therapeutic value

No estimate possible yet

Registration phase

Registration application pending

Product

Active substance

Apadamtase alfa

Domain

Cardiovascular diseases

Reason of inclusion

Indication extension

Main indication

Other non-oncological hematological medications

Extended indication

Congenital (or hereditary) Thrombotic Thrombocytopenic Purpura (cTTP)

Manufacturer

Takeda

Portfolio holder

Takeda

Mechanism of action

Enzyme

Route of administration

Intravenous

Therapeutical formulation

Powder for injection / infusion solution

Budgetting framework

Intermural (MSZ)

Centre of expertise

https://bloedziekten.nl/ttp/waar-terecht/

Additional remarks
TAK-755 replaces the missing or deficient ADAMTS-13 enzyme

Registration

Registration route

Centralised (EMA)

Type of trajectory

Normal trajectory

ATMP

No

Submission date

May 2023

Expected Registration

June 2024

Orphan drug

Yes

Registration phase

Registration application pending

Additional remarks
Dit product staat er al in als: Recombinant ADAMTS-13. Graag deze entry deleten.

Therapeutic value

Current treatment options

Infusion of plasma or plasma exchange (PEX) to replace ADAMTS-13 is the standard of care in cTTP. Plasma infusions are burdensome for patients and can achieve about 25% of normal ADAMTS-13 levels.

Therapeutic value

No estimate possible yet

Substantiation

Conceptueel heeft het geneesmiddel meerwaarde. Het werkingsmechanisme is interessant. Er kan een meerwaarde zijn ten opzichte van plasma vanwege de belasting van plasma-infusie/ferese en het bereiken van hogere spiegels, theoretisch is het ook veiliger. Resultaten op overleving en kwaliteit van leven moeten nog afgewacht worden.

Frequency of administration

1 times every 2 weeks

Dosage per administration

40 IU/kg

References
NCT03393975; 
Amsis et al (2022). NEJM. 2022;387:2356-61. DOI: 10.1056/NEJMoa2211113;
https://hematologienederland.nl/wp-content/uploads/2021/03/Richtlijn2021-TMA_def-300321.pdf
Additional remarks
Prophylactic and on-demand treatment with other dosing scheme, monotherapy (without infusion of plasma or plasma exchange).

Expected patient volume per year

Patient volume

0 - 5

Market share is generally not included unless otherwise stated.

References
Expert opinion
Additional remarks
cTTP is een zeer zeldzaam ziektebeeld. Wereldwijd wordt het aantal patiënten geschat op minder dan 150 patiënten. Het patiëntenaantal in Nederland is niet bekend, maar zal extreem laag zijn. Er wordt verwacht dat er hooguit 5 patiënten in aanmerking zullen komen.

Expected cost per patient per year

There is currently nothing known about the expected cost.

Potential total cost per year

There is currently nothing known about the possible total cost.

Off label use

Off label use

No

Indication extension

Indication extension

Yes

Indication extensions

Immune-mediated Thrombotic Thrombocytopenic Purpura (iTTP)

Other information

There is currently no futher information available.