Table 10Clinical evidence summary: Corticosteroids (oral hydrocortisone or fludrocortisone, nasal flunisolide) versus placebo for ME/CFS

OutcomesNo of Participants (studies*) Follow upQuality of the evidence (GRADE)Relative effect (95% CI)Anticipated absolute effects
Risk with ControlRisk difference with Corticosteroids (oral hydrocortisone or fludrocortisone, nasal flunisolide) versus placebo (95% CI)

Quality of Life: SF36 physical total

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 physical total at 6-11 weeks in the control groups was

46.75

The mean quality of life: sf36 physical total at 6-11 weeks in the intervention group (fludrocortisone) was

7.54 higher

(0.71 lower to 15.79 higher)

Quality of Life: SF36 energy or fatigue

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 energy or fatigue at 6 weeks in the control groups was

18.2

The mean quality of life: sf36 energy or fatigue at 6 weeks in the intervention group (fludrocortisone) was

2.1 higher

(7.43 lower to 11.63 higher)

Quality of Life: SF36 emotional wellbeing

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 emotional wellbeing at 6 weeks in the control groups was

68.8

The mean quality of life: sf36 emotional wellbeing at 6 weeks in the intervention group (fludrocortisone) was

3.8 higher

(5.29 lower to 12.89 higher)

Quality of Life: SF36 role emotional

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 role emotional at 6 weeks in the control groups was

87.8

The mean quality of life: sf36 role emotional at 6 weeks in the intervention group (fludrocortisone) was

0 higher

(14.96 lower to 14.96 higher)

Quality of Life: SF36 role physical

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 role physical at 6 weeks in the control groups was

25

The mean quality of life: sf36 role physical at 6 weeks in the intervention group (fludrocortisone) was

11.8 lower

(29.09 lower to 5.49 higher)

Quality of Life: SF36 pain

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 pain at 6 weeks in the control groups was

50.5

The mean quality of life: sf36 pain at 6 weeks in the intervention group (fludrocortisone) was

0.6 lower

(15.29 lower to 14.09 higher)

Quality of life: SF36 social

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 social at 6 weeks in the control groups was

38.2

The mean quality of life: sf36 social at 6 weeks in the intervention group (fludrocortisone) was

1.9 higher

(11.06 lower to 14.86 higher)

Quality of life: SF36 general wellbeing

Scale from: 0 to 100.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean quality of life: sf36 general wellbeing at 6 weeks in the control groups was

35.8

The mean quality of life: sf36 general wellbeing at 6 weeks in the intervention groups (fludrocortisone) was

3.7 lower

(12.54 lower to 5.14 higher)

Fatigue: fatigue on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean fatigue: fatigue on vas at 6 weeks in the control groups was

7.5

The mean fatigue: fatigue on vas at 6 weeks in the intervention group (fludrocortisone) was

0 higher

(1.1 lower to 1.1 higher)

Fatigue: Chronic Fatigue Syndrome Severity Rating

Scale from: not reported.

28

(1 study)

4-8 weeks

⊕⊝⊝⊝

VERY LOW1,3,4

due to risk of bias, indirectness, imprecision

The mean [nasal] symptom scales: rhinitis severity rating at 4-8 weeks in the control group was

18.13

The mean symptom scales: rhinitis severity rating at 4-8 weeks in the intervention group (nasal flunisolide) was

3.17 lower

(7.48 lower to 1.14 higher)

Fatigue: Profile of Mood States – fatigue

Scale from: 0 to 28.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,5

due to risk of bias, indirectness

The mean fatigue: profile of mood states - fatigue at 11 weeks in the control groups was

16.4

The mean fatigue: profile of mood states - fatigue at 11 weeks in the intervention groups (fludrocortisone) was

0.20 lower

(3.47 lower to 3.07 higher)

Fatigue: Profile of Mood States – fatigue

Scale from: 0 to 28.

68

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean fatigue: profile of mood states - fatigue at 12 weeks in the control groups was

−1.8

The mean fatigue: profile of mood states - fatigue at 12 weeks in the intervention groups (hydrocortisone) was

1.8 lower

(4.14 lower to 0.54 higher)

Fatigue: Profile of Mood States – vigour

Scale from: 0 to 32.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,5

due to risk of bias, indirectness

The mean fatigue: profile of mood states - vigour at 11 weeks in the control groups was

8.6

The mean fatigue: profile of mood states - vigour at 11 weeks in the intervention groups (fludrocortisone) was

0.2 higher

(2.56 lower to 2.96 higher)

Fatigue: Profile of Mood States – vigour

Scale from: 0 to 32.

68

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean fatigue: profile of mood states - vigour at 12 weeks in the control groups was

3.3

The mean fatigue: profile of mood states - vigour at 12 weeks in the intervention groups (hydrocortisone) was

0.5 higher

(1.07 lower to 2.07 higher)

Fatigue: Wood Mental Fatigue Inventory

Scale from: 0 to 36.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,3,5

due to risk of bias, indirectness, imprecision

The mean fatigue: wood mental fatigue inventory at 11 weeks in the control groups was

13.3

The mean fatigue: wood mental fatigue inventory at 11 weeks in the intervention group (fludrocortisone) was

0.8 higher

(3.66 lower to 5.26 higher)

Physical function: SF36 physical function

Scale from: 0 to 100.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,3,5

due to risk of bias, indirectness, imprecision

The mean physical function: sf36 physical function at 11 weeks in the control groups was

51.4

The mean physical function: sf36 physical function at 11 weeks in the intervention group (fludrocortisone) was

7.5 higher

(3.2 lower to 18.2 higher)

Psychological status: SF36 mental health

Scale from: 0 to 100.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,3,5

due to risk of bias, indirectness, imprecision

The mean psychological status: sf36 mental health at 11 weeks in the control groups was

69.8

The mean psychological status: sf36 mental health at 11 weeks in the intervention group (fludrocortisone) was

1.2 lower

(8.92 lower to 6.52 higher)

Adverse events: adverse events leading to study withdrawal

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

Peto OR 0.13 (0.01 to 2.13)100 per 1000

100 fewer per 1000

(from 250 fewer to 50 more)

(with fludrocortisone)

Adverse events: adverse effects/adverse events

123

(2 studies)

6-11 weeks

⊕⊝⊝⊝

VERY LOW1,5

due to risk of bias, indirectness

RR 0.86 (0.63 to 1.17)554 per 1000

78 fewer per 1000

(from 205 fewer to 94 more)

(with fludrocortisone)

Adverse events: any adverse reaction

70

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

RR 1.15 (0.93 to 1.43)771 per 1000

116 more per 1000

(from 54 fewer to 332 more)

(with hydrocortisone)

Psychological status: Beck Depression Inventory

Scale from: 0 to 63.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,3,5

due to risk of bias, indirectness, imprecision

The mean psychological status: beck depression inventory at 11 weeks in the control groups was

10.8

The mean psychological status: beck depression inventory at 11 weeks in the intervention groups (fludrocortisone) was

0.4 lower

(3.43 lower to 2.63 higher)

Psychological status: Beck Depression Inventory

Scale from: 0 to 63.

68

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean psychological status: beck depression inventory at 12 weeks in the control groups was

−0.4

The mean psychological status: beck depression inventory at 12 weeks in the intervention groups (hydrocortisone) was

1.7 lower

(3.90 lower to 0.5 higher)

Psychological status: Profile of Mood States – anger

Scale from: 0 to 48.

68

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean psychological status: profile of mood states - anger, at 12 weeks in the control groups was

−0.8

The mean psychological status: profile of mood states - anger, at 12 weeks in the intervention group (hydrocortisone) was

0.8 lower

(2.63 lower to 1.03 higher)

Psychological status: Profile of Mood States – anxiety

Scale from: 0 to 36.

68

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean psychological status: profile of mood states - anxiety, at 12 weeks in the control groups was

−2.1

The mean psychological status: profile of mood states - anxiety, at 12 weeks in the intervention group (hydrocortisone) was

1.3 higher

(0.17 lower to 2.77 higher)

Psychological status: Profile of Mood States – confusion

Scale from: 0 to 28.

68

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean psychological status: profile of mood states - confusion, at 12 weeks in the control groups was

−1.4

The mean psychological status: profile of mood states - confusion, at 12 weeks in the intervention group (hydrocortisone) was

0.3 higher

(1.18 lower to 1.78 higher)

Psychological status: Profile of Mood States – depression

Scale from: 0 to 60.

68

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2

due to risk of bias, indirectness, imprecision

The mean psychological status: profile of mood states - depression, at 12 weeks in the control groups was

0

The mean psychological status: profile of mood states - depression, at 12 weeks in the intervention group (hydrocortisone) was

1.6 lower

(3.61 lower to 0.41 higher)

Psychological status: Symptom checklist-90-R general sensitivity index

Scale from: not reported.

68

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean psychological status: symptom checklist-90-r general sensitivity index at 12 weeks in the control groups was

−0.1

The mean psychological status: symptom checklist-90-r general sensitivity index at 12 weeks in the intervention group (hydrocortisone) was

0 higher

(0.1 lower to 0.1 higher)

Psychological status: Symptom checklist-90-R positive symptom distress index

Scale from: not reported.

68

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean psychological status: symptom checklist-90-r positive symptom distress index at 12 weeks in the control groups was

−0.1

The mean psychological status: symptom checklist-90-r positive symptom distress index at 12 weeks in the intervention group (hydrocortisone) was

0.1 higher

(0.04 lower to 0.24 higher)

Psychological status: Symptom checklist-90-R positive symptom total

Scale from: not reported.

68

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean psychological status: symptom checklist-90-r positive symptom total at 12 weeks in the control groups was

−2.4

The mean psychological status: symptom checklist-90-r positive symptom total at 12 weeks in the intervention group (hydrocortisone) was

0.2 lower

(5.5 lower to 5.1 higher)

Psychological status: Hamilton Depression Rating Scale

Scale from: not reported.

65

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean psychological status: hamilton depression rating scale at 12 weeks in the control groups was

0.1

The mean psychological status: hamilton depression rating scale at 12 weeks in the intervention group (hydrocortisone) was

0.9 lower

(2.55 lower to 0.75 higher)

Psychological status: Positive and negative effect scale (PANAS) positive affect

Scale from: 10 to 50.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean psychological status: positive and negative effect scale (panas) positive affect at 6 weeks in the control groups was

21.7

The mean psychological status: positive and negative effect scale (panas) positive affect at 6 weeks in the intervention group (fludrocortisone) was

1 higher

(3.67 lower to 5.67 higher)

Activity levels: activity scale

Scale from: not reported.

68

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean activity levels: activity scale at 12 weeks in the control groups was

0.7

The mean activity levels: activity scale at 12 weeks in the intervention group (hydrocortisone) was

0.4 lower

(1 lower to 0.2 higher)

Activity levels: distance before exhausted (ordinal scale)

Scale from: 1 to 5.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean activity levels: distance before exhausted (ordinal scale) at 6 weeks in the control groups was

2.7

The mean activity levels: distance before exhausted (ordinal scale) at 6 weeks in the intervention group (fludrocortisone) was

0 higher

(0.72 lower to 0.72 higher)

Activity levels: Duke Activity Status Index

Scale from: 0 to 58.2.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,3,5

due to risk of bias, indirectness, imprecision

The mean activity levels: duke activity status index at 11 weeks in the control groups was

6.7

The mean activity levels: duke activity status index at 11 weeks in the intervention group (fludrocortisone) was

2.5 higher

(1.49 lower to 6.49 higher)

Cognitive function: Reaction time (secs)

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean cognitive function: reaction time (secs) at 6 weeks in the control groups was

0.36

The mean cognitive function: reaction time (secs) at 6 weeks in the intervention group (fludrocortisone) was

0.01 lower

(0.06 lower to 0.04 higher)

Cognitive function: inability to concentrate on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean cognitive function: inability to concentrate on vas at 6 weeks in the control groups was

5.8

The mean cognitive function: inability to concentrate on vas at 6 weeks in the intervention group (fludrocortisone) was

0.6 lower

(2.18 lower to 0.98 higher)

Cognitive function: forgetfulness on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean cognitive function: forgetfulness on vas at 6 weeks in the control groups was

5.6

The mean cognitive function: forgetfulness on vas at 6 weeks in the intervention group (fludrocortisone) was

0.9 lower

(2.45 lower to 0.65 higher)

Cognitive function: confusion on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean cognitive function: confusion on vas at 6 weeks in the control groups was

4.4

The mean cognitive function: confusion on vas at 6 weeks in the intervention group (fludrocortisone) was

0.1 lower

(1.68 lower to 1.48 higher)

Pain: muscle pain on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean pain: muscle pain on vas at 6 weeks in the control groups was

5.9

The mean pain: muscle pain on vas at 6 weeks in the intervention group (fludrocortisone) was

0.1 lower

(1.82 lower to 1.62 higher)

Pain: joint pain on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean pain: joint pain on vas at 6 weeks in the control groups was

5.1

The mean pain: joint pain on vas at 6 weeks in the intervention group (fludrocortisone) was

0.3 lower

(2.39 lower to 1.79 higher)

Sleep quality: unrefreshing sleep on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean sleep quality: unrefreshing sleep on vas at 6 weeks in the control groups was

8.2

The mean sleep quality: unrefreshing sleep on vas at 6 weeks in the intervention group (fludrocortisone) was

0.5 lower

(1.68 lower to 0.68 higher)

Sleep quality: Functional Outcomes of Sleep Questionnaire

Scale from: not reported.

28

(1 study)

4-8 weeks

⊕⊝⊝⊝

VERY LOW1,3,4

due to risk of bias, indirectness, imprecision

The mean [nasal] sleep quality: functional outcomes of sleep questionnaire at 4-8 weeks in the control group was

12.4

The mean [nasal] sleep quality: functional outcomes of sleep questionnaire at 4-8 weeks in the intervention group (nasal flunisolide) was

0.89 higher

(0.99 lower to 2.77 higher)

Sleep quality: Epworth Sleepiness Scale

Scale from: 0 to 24.

28

(1 study)

4-8 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean [nasal] sleep quality: epworth sleepiness scale at 4-8 weeks in the control group was

11.66

The mean [nasal] sleep quality: epworth sleepiness scale at 4-8 weeks in the intervention group (nasal flunisolide) was

3.18 lower

(6.57 lower to 0.21 higher)

Exercise performance measure: Treadmill time (mins)

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean exercise performance measure: treadmill time (mins) at 6 weeks in the control groups was

20.2

The mean exercise performance measure: treadmill time (mins) at 6 weeks in the intervention group (fludrocortisone) was

2.6 higher

(3.85 lower to 9.05 higher)

Symptom scales: Wellness scale

Scale from: 0 to 100.

83

(1 study)

11 weeks

⊕⊝⊝⊝

VERY LOW1,3,5

due to risk of bias, indirectness, imprecision

The mean symptom scales: wellness scale at 11 weeks in the control groups was

2.7

The mean symptom scales: wellness scale at 11 weeks in the intervention groups (fludrocortisone) was

1.1 higher

(3.58 lower to 5.78 higher)

Symptom scales: Wellness scale

Scale from: 0 to 100.

65

(1 study)

12 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean symptom scales: wellness scale at 112 weeks in the control groups was

1.7

The mean symptom scales: wellness scale at 12 weeks in the intervention groups (hydrocortisone) was

4.6 higher

(0.5 lower to 9.70 higher)

Symptom scales: Sickness Impact Profile

Scale from : 0 to 68.

67

(1 study)

12 weeks

⊕⊕⊝⊝

LOW1,2

due to risk of bias, indirectness

The mean symptom scales: sickness impact profile at 12 weeks in the control groups was

−2.2

The mean symptom scales: sickness impact profile at 12 weeks in the intervention group (hydrocortisone) was

0.3 lower

(3.46 lower to 2.86 higher)

Symptom scales: headaches on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean symptom scales: headaches on vas at 6 weeks in the control groups was

6

The mean symptom scales: headaches on vas at 6 weeks in the intervention group (fludrocortisone) was

0 higher

(1.55 lower to 1.55 higher)

Symptom scales: painful lymph nodes on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean symptom scales: painful lymph nodes on vas at 6 weeks in the control groups was

3.7

The mean symptom scales: painful lymph nodes on vas at 6 weeks in the intervention group (fludrocortisone) was

0.2 lower

(2.31 lower to 1.91 higher)

Symptom scales: sore throat on VAS

Scale from: 0 to 10.

40

(1 study)

6 weeks

⊕⊝⊝⊝

VERY LOW1,2,3

due to risk of bias, indirectness, imprecision

The mean symptom scales: sore throat on vas at 6 weeks in the control groups was

3.3

The mean symptom scales: sore throat on vas at 6 weeks in the intervention group (fludrocortisone) was

0.2 lower

(1.8 lower to 1.4 higher)

1

Downgraded by 1 increment if the majority of the evidence was at high risk of bias, and downgraded by 2 increments if the majority of the evidence was at very high risk of bias

2

The majority of the evidence included an indirect population (downgraded by one increment) : downgraded if the ME/CFS diagnostic criteria used did not include PEM as a compulsory feature [original analysis]; percentage of participants with PEM unclear [PEM reanalysis – see Appendix G for additional details]

3

Downgraded by 1 increment if the confidence interval crossed one MID or by 2 increments if the confidence interval crossed both MIDs

4

The majority of the evidence included an indirect population (downgraded by one increment) or a very indirect population (downgraded by two increments): 1) downgraded if the ME/CFS diagnostic criteria used did not include PEM as a compulsory feature [original analysis]; percentage of participants with PEM unclear [PEM reanalysis – see Appendix G for additional details]. 2) Additionally downgraded due to all participants having rhinitis (Kakumanu 2003)

5

The majority of the evidence included an indirect population (downgraded by one increment) or a very indirect population (downgraded by two increments): 1) downgraded if the ME/CFS diagnostic criteria used did not include PEM as a compulsory feature [original analysis]; percentage of participants with PEM unclear [PEM reanalysis – see Appendix G for additional details]. 2) Additionally downgraded due the majority of evidence coming from a study where all participants had neurally-mediated hypotension (Rowe 2001)

Studies included for corticosteroids: hydrocortisone – Mckenzie 1998; fludrocortisone – Peterson 1998, Rowe 2001; nasal flunisolide – Kakumanu 2003

From: Pharmacological interventions

Cover of Pharmacological interventions
Pharmacological interventions: Myalgic encephalomyelitis (or encephalopathy) / chronic fatigue syndrome: diagnosis and management: Evidence review F.
NICE Guideline, No. 206.
National Guideline Centre (UK).
Copyright © NICE 2021.

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