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Table 2 The pattern of TTX in patients receiving combination IFN-α and RBVNo thyroid nuclear or ultrasonic imaging was available for all thyrotoxic cases

From: The spectrum of thyroid dysfunction in an Australian hepatitis C population treated with combination Interferon-α2β and Ribavirin

Subjects

1

2

3

Gender

F

F

M

Age

26

35

36

HCV Genotype

1a

3a

1g

Regimen duration (weeks)

48

24

24

Adverse reactions

Myalgia, lethargy, emotional lability

None

Insomnia, rash

Baseline ALT

184

142

104

ALT at time of thyroid disease

33

28

17

Duration of therapy prior to thyroid disease (weeks)

16

8

32

Symptoms of thyroid disease

Anxiety and depression

Non-specific

Non-specific

Signs

No goitre

No goitre

No goitre

Peak fT4 (pmol/L)

56.7

57.0

27.0

Peak fT3 (pmol/L)

15.1

15.3

12.8

Thyroid autoantibody status

• Anti-Tg <1

• Anti-TPO 1:409,600

• TSI <1

• Anti-Tg <1

• Anti-TPO 1:409,600

• TSI <1

• Anti-Tg <1

• Anti-TPO <1:100

• TSI <1

Thyroid outcomes

Hypothyroidism on replacement therapy

Hypothyroidism on replacement therapy

Thyroid condition resolved with IFN-α dose reduction

Hepatic outcomes

PCR negative

PCR negative

PCR negative