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NEJM This Week — November 30, 2023

NEJM This Week — November 30, 2023

Released Wednesday, 29th November 2023
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NEJM This Week — November 30, 2023

NEJM This Week — November 30, 2023

NEJM This Week — November 30, 2023

NEJM This Week — November 30, 2023

Wednesday, 29th November 2023
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0:00

Welcome, this is the New England Journal

0:02

of Medicine. I'm Dr. Lisa

0:04

Johnson. This week, November

0:06

30, 2023,

0:09

we feature articles on

0:11

levothyroxine for unstable brain-dead

0:13

heart donors, amivantamab

0:15

in lung cancer

0:18

with EGFR-exon-20 insertions,

0:21

amikacin to prevent

0:23

ventilator-associated pneumonia, and

0:26

tarlatamab in small-cell lung

0:28

cancer, a new

0:30

series on wearable digital health

0:32

technology with a review article

0:34

on digital technology for diabetes,

0:37

a case report of a man with sickle

0:39

cell disease and right hip pain, and

0:42

perspectives on coverage for

0:44

emerging technologies, on

0:46

methadone clinic engagement and cancer

0:49

care, and on learning

0:51

from the bomb. A

0:54

new clinical decisions addresses the

0:56

approach to menstrual migraine with

0:59

aura. A woman who

1:01

has chronic migraines with aura comes

1:03

to the clinic to discuss her

1:05

headaches. The headaches usually occur around

1:08

the time of her menses. This

1:11

clinical decisions offers a case

1:13

vignette accompanied by two essays,

1:15

one supporting prescription of oral

1:18

combined contraceptive pills and the

1:20

other recommending against it. We

1:23

want to know what you decide.

1:26

Visit nejm.org to

1:28

vote. Intravenous

1:31

Levothyroxine for Unstable

1:33

Brain-Dead Heart Donors

1:36

by Rajat Dar, from

1:38

Washington University School of Medicine,

1:41

St. Louis, Missouri. Hemodynamic

1:44

instability and myocardial dysfunction

1:46

are major factors preventing

1:49

the transplantation of hearts

1:51

from organ donors after

1:53

brain death. Intravenous

1:56

Levothyroxine is widely used

1:58

in donor care. On

2:00

the basis of observational

2:02

data suggesting that more

2:05

organs may be transplanted

2:07

from donors who receive

2:09

hormonal supplementation. In this

2:11

trial involving 15 organ

2:13

procurement organizations in the United

2:16

States, 838 hemodynamically

2:19

unstable potential heart donors

2:21

were randomly assigned within

2:23

24 hours after

2:26

declaration of death according

2:28

to neurologic criteria to

2:31

open label infusion of

2:33

intravenous levothyroxine or saline

2:36

placebo. Hearts were transplanted

2:38

from 230 donors 54.9% in the levothyroxine group

2:40

and 223 53.2% in

2:49

the saline group. Graft survival

2:51

at 30 days occurred in 97.4%

2:53

of hearts transplanted

2:57

from donors assigned to receive

2:59

levothyroxine and 95.5% of hearts

3:03

transplanted from donors assigned

3:05

to receive saline. There

3:08

were no substantial between-group

3:10

differences in weaning from

3:12

vasopressor therapy, ejection fraction

3:15

on echocardiography or organs

3:17

transplanted per donor but

3:20

more cases of severe hypertension

3:22

and tachycardia occurred in the

3:24

levothyroxine group than in the

3:27

saline group. In

3:29

hemodynamically unstable brain dead

3:31

potential heart donors intravenous

3:34

levothyroxine infusion did not

3:36

result in significantly more

3:38

hearts being transplanted than

3:41

saline infusion. Karen

3:44

Koush from Stanford University School

3:46

of Medicine, California writes

3:49

in an editorial that this

3:51

trial had several limitations including

3:53

no blinding of the trial

3:55

personnel with respect to trial

3:57

group assignments, a lack of

4:00

centralized interpretation of donor

4:02

echocardiograms and a lack

4:04

of standardization of concomitant

4:06

donor medical therapies. Even

4:10

so, this study provides the

4:12

most definitive data to date

4:14

about donor thyroid hormone replacement

4:17

therapy. The results

4:19

have major clinical implications

4:22

for organ procurement organizations,

4:24

OPOs, around the country.

4:27

Data from the United Network for Organ Sharing

4:29

show that 48% of

4:32

all potential organ donors and 55%

4:35

of donors with left ventricular

4:37

dysfunction were treated with levothyroxine

4:40

from 2015 to

4:42

2022. Overall,

4:44

almost half the OPOs in

4:46

the United States routinely administer

4:49

thyroid hormone during donor care.

4:51

Perhaps the most remarkable aspect of

4:54

this trial is that it was

4:56

performed at all. Conducting

4:59

research that involves organ

5:01

donors, particularly randomized controlled

5:03

trials, is fraught with

5:05

challenges. These include

5:08

recruitment of participating OPOs,

5:10

which often do not have

5:12

dedicated staff or resources for

5:15

conducting research. Logistic challenges

5:17

inherent in performing trial procedures

5:20

at the large number of

5:22

donor hospitals and organ recovery

5:25

facilities, lack of

5:27

trial oversight, difficulties with

5:29

obtaining authorization for donor

5:31

research, and lack of

5:33

dedicated funding mechanisms. Indeed,

5:36

this trial was largely

5:38

unfunded, relying on internal

5:41

support within each participating

5:43

OPO. These obstacles,

5:45

among others, have resulted in

5:47

a paucity of randomized controlled

5:50

trials, which provide definitive data

5:52

to inform donor care and

5:54

to increase the yield and

5:56

utilization of donor organs.

6:00

After these hurdles are overcome,

6:02

will the organ donation and

6:04

transplantation community be able

6:06

to meet the goal

6:08

of increasing the availability

6:10

of donor organs for

6:12

life-saving transplantation? Amavantimab

6:17

plus chemotherapy in

6:19

NSCLC with EGFR

6:22

exon 20 insertions

6:25

by Kaikun Zhou from

6:27

Shanghai Pulmonary Hospital, China.

6:30

Amavantimab has been approved

6:33

for the treatment of

6:35

patients with advanced non-small

6:37

cell lung cancer, NSCLC,

6:40

with epidermal growth factor

6:42

receptor, EGFR exon 20

6:44

insertions, who have had

6:46

disease progression during or

6:49

after platinum-based chemotherapy. Phase

6:52

one data showed the

6:54

safety and anti-tumor activity

6:57

of Amavantimab plus carboplatin

6:59

pematrexet chemotherapy. Additional

7:02

data on this combination therapy

7:04

are needed. In this

7:06

phase three trial, 308

7:10

patients with advanced NSCLC

7:12

with EGFR exon 20

7:14

insertions, who had not

7:17

received previous systemic therapy,

7:19

were randomly assigned to

7:22

receive intravenous Amavantimab plus

7:24

chemotherapy or chemotherapy alone.

7:28

The primary outcome of progression-free

7:30

survival was significantly longer in

7:33

the Amavantimab chemotherapy group as

7:35

compared with the chemotherapy group,

7:37

median 11.4 months and 6.7

7:40

months respectively. At

7:45

18 months, progression-free survival

7:47

was reported in 31% of the

7:49

patients in

7:52

the Amavantimab chemotherapy group and in

7:54

3% in the

7:56

chemotherapy group. A complete

7:58

or partial response at data cutoff

8:00

was reported in 73% and 47% respectively. The

8:07

predominant adverse events

8:09

associated with amavantimab

8:11

chemotherapy were reversible

8:13

hematologic and EGFR-related

8:15

toxic effects. 7%

8:19

of patients discontinued amavantimab

8:21

owing to adverse reactions.

8:24

The use of amavantimab

8:26

with chemotherapy resulted in

8:28

superior efficacy as compared

8:31

with chemotherapy alone as

8:33

first-line treatment of patients

8:35

with advanced NSCLC with

8:37

EGFR exon 20 insertions.

8:42

Inhaled amacasin to

8:45

prevent ventilator-associated pneumonia.

8:48

By Stefan Ermann from

8:50

the St. Trops-Bitalier-Regional Universitaire

8:52

du Tour, France.

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