ArticleThe Lancet regional health. Europe2026
Immunoadsorption Versus Sham Treatment for Post-COVID Syndrome: A Randomised Sham-Controlled Crossover Trial.
Article in The Lancet regional health. Europe, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05841498 (A Single-blinded Sham-controlled Crossover Trial to Evaluate the Effect of Immunoadsorption on Post-Corona Virus Disease), which is not on this map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
A Single-blinded Sham-controlled Crossover Trial to Evaluate the Effect of Immunoadsorption on Post-Corona Virus Disease (COVID)-Syndrome
Who cites it
1 citing paper in PubMed.
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Post-Covid syndrome is a debilitating condition which may be caused and/or aggravated by autoantibodies. The current study aimed to determine whether autoantibody depletion by immunoadsorption is effective to reduce the symptom burden of patients with post-Covid syndrome. Methods: IAMPOCO was a randomised, patient-blinded, sham-controlled crossover trial of immunoadsorption with tryptophan adsorbers versus sham treatment in patients with post-Covid syndrome at a tertiary academic care centre. The primary outcome was the difference in change in symptom severity before and after the respective therapies. Secondary outcomes included treatment safety, prevalence of autoantibodies against G protein-coupled receptors (adrenergic and muscarinergic receptors), and the influence of treatment on autoantibody levels. Findings: 40 patients with post-Covid syndrome and a symptom severity of at least 2 on the Post-Covid-19 Functional Scale were included and randomised to a treatment sequence. There was no difference in change in symptom severity between immunoadsorption and sham; odds ratio in Post-Covid-19 Functional Scale, OR = 1.17 (95% CI, 0.41-3.36; p = 0.771), mean difference in MFI-20 2.4 (95% CI, -3.7-8.5; p = 0.437), in CFS 0.09 (95% CI, -4.5 to 4.7; p = 0.970), in Bell-Scale -2.6 (95% CI, -6.9 to 1.8; p = 0.246), in MoCA score -0.01 (95% CI, -1.2 to 1.1, p = 0.993) and in Handgrip-strength deviation from individual normal value 1.3 (-0.83 to 3.5, p = 0.234). 34 adverse events occurred, 10 during or after sham treatment and 24 during or after immunoadsorption. Autoantibodies against G protein-coupled receptors were depleted by immunoadsorption but not sham treatment. Interpretation: Immunoadsorption was not effective in reducing symptom burden in post-Covid syndrome. Funding: Ministry of Health, state of Rhineland-Palatinate; Mainz University Medical Centre; DIAMED Medical Technology. Trial Registration: ClinicalTrials.gov, number NCT05841498.
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