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Table 1 Genotypes, cross reactive immunological material (CRIM) status, ages of onset of symptoms, diagnosis and starting ERT, immunological data, Infusion associated reactions and ERT dosing of the 28 Pompe patients

From: Long term clinical history of an Italian cohort of infantile onset Pompe disease treated with enzyme replacement therapy

Patient ID/gender

Genotype

Predicted mutations severitya

CRIM

Age of onset signs and symptomsb

Age diagnosisb

Age starting ERTb

Anti-rh GGA antibodies maximum titer

Immunomodulation

Severe IAR

ERT present or last dosing

1/M

NA

–

NA

1

1

2

NA

No

No

1

2/F

NA

–

NA

2

4

4

NA

No

Yes

1

3/F

c.[1833_1839del;1846G > T; 1847_1848insT]; [c1124G > T]

Very severe/potentially less severe

P(E)

1

5

5

NA

No

No

1

4/M

NA

–

NA

3

4

4

NA

No

No

1

5/F

c.[236_246 del];. [236_246 del]

Very severe

Neg (E)

1

1

2

1:25.600

No

Yes

1

6/F

c.[742delC];[c.896 T > C]

Very severe/potentially less severe

P(E)

4

6

10

NA

No

No

1

7/F

c.[2481 + 102_2646 + 31del]; [2481 + 102_2646 + 31del]

Very severe

Neg(E)

6

8

8

NA

No

No

1

8/F

c.[525delT];[c.670C > T]

Very severe/potentially less severe

P(E)

1

9

10

NA

No

No

1

9/M

c.[1497G > A];[1497G > A]

Very severe

Neg

birth

5 days

1

1:102.400

No

No

1

10/M

c.[1833_1839del;1846G > T; 1847_1848insT]; [1833_1839del;1846G > T; 1847_1848insT]

Very severe

Neg (E)

2

7

7

1:25.600

Yes 14 m [7]

Yes

1

11/M

c.[1942G > A]; [2646 + 2 T > A]

Potentially less severe/very severe

P(E)

birth

12 days

19 days

NA

No

No

1

12/M

c.[236_246del]; [1655 T > C]

Very severe/potentially less severe

P(E)

2

3

4

NA

No

Yes

1

13/F

c.[236_246del];[1927G > A]

Very severe/potentially less severe

P

6

11

11

NA

No

No

5c

14/M

c.[236-246del]; [236-246del]

Very severe

Neg

4

4

4

1:204.800

Yes prophylactic and later 1 cycle therapeutic [8]

Yes

1

15/F

c.[955 + 1G > A]; [1438-2A > G]

Unknown/very severe

NA

birth

5 days

8 days

≤ 1:400

No

No

1

16/M

c.[525delT]; [2237G > A]

Very severe

Neg (E)

birth

3

4

1:102.400

Yes 4 cycles at 1–2–3-4 years [8]

Yes

6c

17/M

c.[1A > G];[1A > G]

Very severe

Neg(E)

2

6

6

________NA

No

No

1

18/M

c.[784G > A]; [784G > A]

Potentially less severe

P

1

1.5

4

≤ 1:400

No

No

4c

19/M

c.[1802C > G]; [2800-1G > C]

Potentially less severe/unknown

P(E)

10 days

3

3

≤ 1:400

No

No

2c

20/F

c.[1564C > G];[1564C > G]

Potentially less severe

P(E)

4

4

5

1:1.600

No

No

1

21/F

c.[930_932delGTT];[1927G > A]

Unknown/ Potentially less severe

P(E)

birth

19 days

1

NA

No

Yes

7 c

22/F

c. [1927G > A];[1927G > A]

Potentially less severe

P(E)

4

4

5

NA

No

No

1

23/F

c.[1933 G > A];[1933 G > A]

Potentially less severe

P(E)

birth

1

1

NA

No

No

1

24/F

c.[1933G > A]; [1564C > G]

Potentially less severe/potentially less severe

P(E)

2

3

4

NA

No

No

1

25/F

c.[784G > A]; [1822C > T]

Potentially less severe/very severe

P

2

3

4

≤ 1:400

No

No

2c

26/F

c.[1064 T > C]; [2041-2A > C]

Potentially less severe/very severe

P(E)

3

5

8

≤ 1:400

No

No

3c

27/M

c.[1465G > A];[40_47del8]

potentially less severe/unknown

P(E)

birth

3

4

≤ 1:400

No

No

2d

28/M

c.[2237G > A];[1655 T > C]

Very severe/potentially less severe

P(E)

2

4

9

1:3200

No

Yes

2d

  1. aAs reported in https://www.erasmusmc.nl/klinische_genetica/research/lijnen/pompe_center E = estimated on genotype [23]; ERT dosing: 1 = 20 mg/kg/14 days, 2 = 40 mg/kg/14 days, 3 = 20 mg/kg/10 days, 4 = 40 mg /kg/10 days, 5 = 20 mg/kg/7 days, 6 = 40 mg /kg/7 days, 7 = 15 mg/kg/7 days; F female; IAR infusion associated reaction; M male; N negative; NA not available; P positive
  2. bmonths, unless differently indicated
  3. cPatients in whom the dosage of ERT was modified in course of follow up due to poor clinical outcome or to infusion associated reactions. Dosing at the beginning of ERT = 20 mg/kg/14 days
  4. d dosage of ERT received from the beginning of treatment
  5. E = estimated on genotype [23]; ERT dosing: 1 = 20 mg/kg/14 days, 2 = 40 mg/kg/14 days, 3 = 20 mg/kg/10 days, 4 = 40mg /kg/10 days, 5 = 20 mg/kg/7 days, 6 = 40mg /kg/7 days, 7 = 15 mg/kg/7 days; F = female; IAR = Infusion Associated Reaction; M = male; N = negative; NA = not available