Trastuzumab deruxtecan

Extended indication	Enhertu as monotherapy is indicated for the treatment of adult patients with advanced HER2-positive gastric or gastroesophageal junction (GEJ) adenocarcinoma who have received a prior trastuzumab-based regimen.
Therapeutic value	No estimate possible yet
Total cost	12,201,462.00
Registration phase	Registered

Product

Active substance	Trastuzumab deruxtecan
Domain	Oncology
Reason of inclusion	Indication extension
Main indication	Stomach cancer
Extended indication	Enhertu as monotherapy is indicated for the treatment of adult patients with advanced HER2-positive gastric or gastroesophageal junction (GEJ) adenocarcinoma who have received a prior trastuzumab-based regimen.
Proprietary name	Enhertu
Manufacturer	AstraZeneca
Mechanism of action	Antibody-drug conjugate
Route of administration	Intravenous
Therapeutical formulation	Injection / infusion solution
Budgetting framework	Intermural (MSZ)

Registration

Registration route	Centralised (EMA)
Type of trajectory	Normal trajectory
ATMP	No
Submission date	October 2021
Expected Registration	December 2022
Orphan drug	No
Registration phase	Registered
Additional remarks	Positieve CHMP-opinie november 2022. Registratie december 2022. Dit geneesmiddel is in de sluis geplaatst voor zover verstrekt in het kader van geneeskundige behandelingen.

Therapeutic value

Therapeutic value	No estimate possible yet
Substantiation	In de DESTINY-Gastric02 werd een respons percentage van 38% gevonden. Enhertu is per december 2022 geregistreerd op basis van de DESTINY-Gastric01 en DESTINY-Gastric02 studies.
Frequency of administration	1 times every 3 weeks
Dosage per administration	6,4mg/kg

Expected patient volume per year

Patient volume	< 78 Market share is generally not included unless otherwise stated.
References	IKNL; expertopinie; Record rivoceranib
Additional remarks	Ongeveer 70 patiënten worden behandeld in de tweede lijn voor gemetastaseerd adenocarcinoom van de maag of gastro-oesofageale overgang. Het aantal patiënten met een slokdarmcarcinoom die in de tweede lijn worden behandeld bedraagt ongeveer 60. In totaal zijn dit dus 130 patiënten. De inschatting is dat hiervan maximaal 60% een derdelijns behandeling krijgt (78 patiënten).

Patient volume

< 78

Market share is generally not included unless otherwise stated.

References

IKNL; expertopinie; Record rivoceranib

Additional remarks

Ongeveer 70 patiënten worden behandeld in de tweede lijn voor gemetastaseerd adenocarcinoom van de maag of gastro-oesofageale overgang. Het aantal patiënten met een slokdarmcarcinoom die in de tweede lijn worden behandeld bedraagt ongeveer 60. In totaal zijn dit dus 130 patiënten. De inschatting is dat hiervan maximaal 60% een derdelijns behandeling krijgt (78 patiënten).

Expected cost per patient per year

Cost	156,429.00
References	CBS; fabrikant
Additional remarks	Trastuzumab-deruxtecan is beschikbaar in flacons van 100mg. De apotheekinkoopprijs (AIP) bedraag €1.800 per flacon. De aanbevolen dosering is 6,4mg per kg per behandelcyclus van 21 dagen. Op basis van een gemiddeld gewicht van 78kg bedragen de kosten van trastuzumab-deruxtecan €9.000 per behandelcyclus (5 flacons van €1.800). De kosten per maand zijn dan €13.035,71 ((365/12)*(9.000/21)). De kosten per patiënt per jaar zijn dan €156.429.

Cost

156,429.00

References

CBS; fabrikant

Additional remarks

Trastuzumab-deruxtecan is beschikbaar in flacons van 100mg. De apotheekinkoopprijs (AIP) bedraag €1.800 per flacon. De aanbevolen dosering is 6,4mg per kg per behandelcyclus van 21 dagen. Op basis van een gemiddeld gewicht van 78kg bedragen de kosten van trastuzumab-deruxtecan €9.000 per behandelcyclus (5 flacons van €1.800). De kosten per maand zijn dan €13.035,71 ((365/12)*(9.000/21)). De kosten per patiënt per jaar zijn dan €156.429.

Potential total cost per year

Total cost	12,201,462.00 This amount gives an indication of the total cost. It is the result of the average expected patient volume times the average cost per patient. both per year.

Total cost

12,201,462.00

This amount gives an indication of the total cost. It is the result of the average expected patient volume times the average cost per patient. both per year.

Off label use

There is currently nothing known about off label use.

Indication extension

Indication extension	Yes
Indication extensions	Treatment of adult patients with unresectable or metastatic HER2 positive breast cancer who have received two or more prior anti HER2 based regimens (NCT03248492). Treatment of adult patients with unresectable or metastatic HER2-positive breast cancer who have received one or more prior anti-HER2 therapies (2L) (NCT03529110). Treatment of adult patients with unresectable or metastatic HER2-Low breast cancer. Treatment of adult patients with HER2-mutated, Unresectable and/or Metastatic non-small cell lung cancer (NSCLC) (NCT03505710).

Yes

Indication extensions

Treatment of adult patients with unresectable or metastatic HER2 positive breast cancer who have received two or more prior anti HER2 based regimens (NCT03248492). Treatment of adult patients with unresectable or metastatic HER2-positive breast cancer who have received one or more prior anti-HER2 therapies (2L) (NCT03529110). Treatment of adult patients with unresectable or metastatic HER2-Low breast cancer. Treatment of adult patients with HER2-mutated, Unresectable and/or Metastatic non-small cell lung cancer (NSCLC) (NCT03505710).

Other information

There is currently no futher information available.