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Table 3 Clinical evidence considerations of each of the therapies studied

From: How are health technology assessment bodies responding to the assessment challenges posed by cell and gene therapy?

Drug Name

(Number of assessments)

Kymriah DLBCL

(6)

Kymriah ALL

(6)

Yescarta

(7)

Luxturna

(7)

Strimvelis

(1)

Imlygic

(3)

Alofisel

(5)

Provengea

(2)

Glybera

(2)

Zolgensma

(7)

Surrogate endpoint used

Yes (5)

Yes (5)

Yes (6)

Yes (6)

Yes (1)

Yes (2)

Yes (4)

No (2)

Yes (1)

Yes (2)

Rare disease

Yes (3)

Yes (3)

Yes (4)

Yes (7)

 

No (1)

Yes (4)

No (2)

Yes (2)

Yes (7)

Serious condition

Yes (5)

Yes (5)

Yes (6)

Yes (6)

Yes (1)

Yes (2)

Yes (4)

  

Yes (6)

Single-arm trial

Yes (6)

Yes (6)

Yes (7)

No (7)

Yes (1)

No (3)

No (5)

No (2)

Yes (2)

Yes (7)

Pediatric population

No (6)

Yes (5)

No (7)

Yes (2)

Yes (1)

No (3)

No (5)

No (2)

No (2)

Yes (7)

Reporting of adverse consequences and risks

Yes (6)

Yes (6)

Yes (7)

Yes (7)

Yes (1)

Yes (2)

Yes (5)

Yes (2)

Yes (1)

Yes (7)

Size of clinical trial (number of patients)

99–167

59–97

111

29–31

18

436

212–289

512

27

15–33

Length of clinical trials (months)

13.9–40.3

8.7–30.2

8.7–27.1

12–48

 

48

12–24

20.6–34

 < 12

12–53

Extrapolation to long-term outcomes (months)

552

 > 1,000

528

  

360

480

120

 

924

  1. aWithdrawn from the market