Chronic Fatigue Syndrome, Myalgic Encephalomyelitis
Conditions
Keywords
Chronic fatigue syndrome, CFS, Myalgic Encephalomyelitis (ME), CFS/ME, Tumor necrosis factor-alpha, TNF-alpha, Etanercept
Brief summary
The hypothesis is that a subset of patients with chronic fatigue syndrome/ myalgic encephalomyelitis (CFS/ME), including also patients with no clinical response after B-cell depletion therapy using the anti-CD20 antibody Rituximab, may benefit from tumor necrosis factor-alpha inhibition using Etanercept as weekly subcutaneous injections.
Interventions
Weekly subcutaneous injections of Etanercept 50 mg, for up to 12 months.
Sponsors
Study design
Eligibility
Inclusion criteria
* chronic fatigue syndrome/ myalgic encephalomyelitis (CFS/ME) * moderate and serious CFS/ME severity * age 18-66 years * informed consent
Exclusion criteria
* patients with fatigue, not fulfilling criteria for CFS * pregnancy or lactation * previous malignant disease, except basal cell carcinoma of skin and cervical carcinoma in situ * previous long-term systemic treatment with immunosuppressive drugs such as cyclosporine, azathioprin, mycophenolate mofetil, except steroids e.g. in obstructive lunge disease. * demyelinating disease, such as multiple sclerosis. * heart failure. * endogenous depression. * lack of ability to comply to the protocol. * multi-allergy with risk of serious drug reaction * reduced renal function (creatinine \> 1.5 x UNL) * reduced liver function (bilirubin or transaminases \> 1.5 x UNL) * HIV positivity. Evidence of clinically significant infection. Previous viral hepatitis with risk of reactivation. High risk of opportunistic infections. Latent tuberculosis must be treated before inclusion.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Symptom alleviation within 12 months follow-up, as compared to baseline, measured by standardized self-reports and quality of life schemes. | Response of at least six weeks duration, independent on when occuring, during 12 months follow-up. | The primary endpoint is defined as moderate or major response of the CFS/ME symptoms, of at least six weeks duration, independent on when during 12 months follow-up the response period(s) occurs. Single such response periods, and the sum of these, are recorded. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Symptom alleviation, as compared to baseline, measured by standardized self-reports and quality of life schemes. | At 3, 6, 9, 12 months after start of intervention. | The secondary outcome measures are effect on the CFS/ME symptoms, by evaluation at 3, 6, 9, 12 months after start of intervention. |
Countries
Norway