- ICH GCP
- Registr klinických studií v USA
- Klinická studie NCT07316127
Imunoadsorpce u autoimunitního dlouhého COVIDu (TURNLongCOVID)
Placebo-kontrolovaná, dvojitě zaslepená, randomizovaná studie fáze I-II s imunoadsorpcí u autoimunitního dlouhého COVIDu
Some people continue to have serious symptoms long after COVID-19, such as extreme fatigue and feeling worse after activity. In some patients, this may happen because the immune system is attacking the body by mistake.
This study will test a treatment called immunoadsorption, which filters the blood to remove harmful antibodies. People with long COVID who have these antibodies will be randomly assigned to receive either the real treatment or a placebo. The main goal is to see whether fatigue improves after one month, and whether other symptoms and daily functioning improve over six months.
This research will help us find out if this treatment can benefit the group of long COVID patients with immune-related disease.
Přehled studie
Postavení
Intervence / Léčba
Detailní popis
Growing evidence indicates that autoantibodies may drive symptoms in a subset of people with long COVID, as demonstrated by symptom transfer to mice following administration of IgG from affected patients. This provides a strong rationale for targeted immunotherapy aimed at removing pathogenic antibodies. Immunoadsorption is a well-established method to reduce circulating IgG, but studies suggest that only a specific subgroup of patients benefits.
Using HuProt autoantibody microarray technology, we identified several autoantibodies uniquely present in long COVID patients compared with healthy controls. We subsequently developed and validated a disease-specific Luminex multiplex immunoassay to detect this autoimmune phenotype. This study will use these findings as a novel selection method of identifying long COVID patients with pathogenic IgG, thereby enriching the population most likely to benefit from immunoadsorption therapy.
This biomarker-guided personalized medicine approach could enhance treatment efficacy and advances long COVID therapeutic strategies. Additionally, the placebo-controlled and double blinded design will be needed to evaluate the true potential of autoantibodies adsorption therapy in long COVID. This study can add to our understanding on the role of autoantibodies in the pathogenesis of long COVID and could help in the development of precision-based immunotherapy for patients such as immunoadsorption.
Typ studie
Zápis (Odhadovaný)
Fáze
- Fáze 2
Kontakty a umístění
Studijní kontakt
- Jméno: Daphne Schouten, MD
- Telefonní číslo: +31 20 566 9111
- E-mail: postcovidtrials@amsterdamumc.nl
Studijní místa
-
-
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Amsterdam, Holandsko
- Nábor
- AUMC
-
Kontakt:
- Daphne Schouten, MD
- Telefonní číslo: +31 20 566 9111
- E-mail: postcovidtrials@amsterdamumc.nl
-
-
Kritéria účasti
Kritéria způsobilosti
Věk způsobilý ke studiu
Přijímá zdravé dobrovolníky
Pohlaví způsobilá ke studiu
Popis
Inclusion Criteria:
- Long COVID based on the WHO-criteria
- PEM according to the DSQ-PEM
- BELL's functionality score 20-70%
- Good health prior to the long COVID diagnosis (WHO performance score 0)
Exclusion Criteria:
- Medical history of clinically significant respiratory- or cardiovascular disease
- Prior interventional cardiac procedure within 3 months prior to randomization
- Active immunosuppresive treatment for systemic autoimmune disorders
- Diabetes type 1
- Solid organ malignancy in the last 5 years
- Active psychiatric disorder currently under treatment by a psychiatrist
- BMI > 35
- Pre-existing fatigue
- Poor performance score prior to the long COVID diagnosis (WHO performance >0)
- Pregnancy or breastfeeding
Studijní plán
Jak je studie koncipována?
Detaily designu
- Primární účel: Léčba
- Přidělení: Randomizované
- Intervenční model: Paralelní přiřazení
- Maskování: Dvojnásobek
Zbraně a zásahy
Skupina účastníků / Arm |
Intervence / Léčba |
|---|---|
|
Falešný srovnávač: Placebo
Participants in the placebo group will receive six sessions of sham treament, each lasting 2.5 hours over two weeks. The procedure will be performed without an adsorption column, allowing the blood to circulate through the extracorporeal circuit and be returned to the patient without removal of immunoglobulins or other plasma components. |
The immunoadsorption column will be removed from the device, so that the patient's blood passes through the system and is returned to the body without undergoing adsorption or removal of antibodies. |
|
Aktivní komparátor: Immunoadsorption
Participants in the intervention group will receive six sessions of immunoadsorption, each lasting 2.5 hours over two weeks. Immunoadsorption will be performed using tryptophan columns, which bind the Fc region of IgG via hydrophobic and aromatic interactions. |
Immunoadsorption will be performed using tryptophan columns, which bind the Fc region of IgG via hydrophobic and aromatic interactions. |
Co je měření studie?
Primární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Change in fatigue measured by the Fatigue Assessment Scale (FAS)
Časové okno: At baseline and 28 days after start treatment
|
Score range 10-50 (10 items, Likert scale 1-5). Higher scores indicate more severe fatigue (worse). The difference in scores from baseline will be measured (MCID of 4 points) as the primary outcome. |
At baseline and 28 days after start treatment
|
Sekundární výstupní opatření
Měření výsledku |
Popis opatření |
Časové okno |
|---|---|---|
|
Change in health related quality of life using the 36-Item Short Form Health Survey (SF-36)
Časové okno: At baseline and days 28, 60, 90, and 180
|
Eight domains scored from 0-100. Domain scores are commonly summarized into the Physical Component Summary (PCS) and Mental Component Summary (MCS) (norm-based, mean 50, SD 10). Higher scores indicate better health-related quality of life and functioning. |
At baseline and days 28, 60, 90, and 180
|
|
Change in cognitive functioning using the Patient-Reported Outcomes Measurement Information System (PROMIS®) Cognitive Function Short Form 8a (PROMIS Cognitive Function Short Form 8a)
Časové okno: At baseline and days 28, 60, 90, and 180
|
Raw scores are converted to T-scores (20-80), with a population mean of 50 (SD 10). Higher scores indicate better cognitive functioning. Change in score will be measured (MCID 3-5). |
At baseline and days 28, 60, 90, and 180
|
|
Change in autonomic symptoms using the Composite Autonomic Symptom Score-31 (COMPASS-31)
Časové okno: At baseline and days 28, 60, 90, and 180
|
0-100 weighted total score across six domains: orthostatic intolerance, vasomotor, secretomotor, gastrointestinal, bladder, and pupillomotor symptoms. Higher scores indicate greater autonomic symptom burden. |
At baseline and days 28, 60, 90, and 180
|
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Incidence and severity of adverse events (AEs) and serious adverse events (SAEs) related to the intervention
Časové okno: From first study intervention through day 180
|
All AEs and SAEs will be recorded, graded according to CTCAE v5.0, and assessed for relatedness to the study treatment. Specific attention will be given to complications of extracorporeal procedures (e.g., hypotension, bleeding, allergic reactions, infection, and vascular access issues) |
From first study intervention through day 180
|
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Repeated Handgrip Strength
Časové okno: At baseline and days 28, 60, 90, and 180
|
Handgrip strength will be assessed using a calibrated handheld dynamometer at four standardized measurement points in accordance with the American Society of Hand Therapists (ASHT) guidelines. Grip strength will be recorded in kilograms (kg). Higher grip strength reflects better muscle function. |
At baseline and days 28, 60, 90, and 180
|
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Orthostatic intolerance using the NASA lean test
Časové okno: At baseline and days 28 and 180
|
The NASA Lean Test is a standardized active standing test used to assess orthostatic intolerance. Participants rest in a supine position followed by an active standing phase while leaning against a wall to minimize skeletal muscle pumping. Heart rate and blood pressure are measured at predefined intervals during standing. Abnormal heart rate and/or blood pressure responses during the test indicate orthostatic intolerance. |
At baseline and days 28 and 180
|
|
Efficacy treatment by measuring immunoglobuline titers
Časové okno: At baseline (prior to treatment initiation), during treatment, and at days 28 and 180 after treatment initiation.
|
Immunoglobulin G titers will be measured in blood samples using standardized laboratory assays and reported as concentrations (g/L). |
At baseline (prior to treatment initiation), during treatment, and at days 28 and 180 after treatment initiation.
|
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Autoantibody score using an in-house Luminex assay
Časové okno: At screening and on days 28, 60, 90, and 180
|
For this assay, IgG will be isolated from patient serum samples obtained during screening and analyzed using a Luminex-based multiplex immunoassay targeting a panel of 15 validated autoantigens. A weighted scoring system is applied to the resulting autoantibody signals. |
At screening and on days 28, 60, 90, and 180
|
Spolupracovníci a vyšetřovatelé
Termíny studijních záznamů
Hlavní termíny studia
Začátek studia (Aktuální)
Primární dokončení (Odhadovaný)
Dokončení studie (Odhadovaný)
Termíny zápisu do studia
První předloženo
První předloženo, které splnilo kritéria kontroly kvality
První zveřejněno (Aktuální)
Aktualizace studijních záznamů
Poslední zveřejněná aktualizace (Aktuální)
Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality
Naposledy ověřeno
Více informací
Termíny související s touto studií
Klíčová slova
Další relevantní podmínky MeSH
- Postinfekční poruchy
- COVID-19
- Patologické procesy
- Chronické onemocnění
- Atributy nemoci
- Infekce dýchacích cest
- Infekce
- RNA virové infekce
- Virová onemocnění
- Nemoci dýchacích cest
- Plicní onemocnění
- Pneumonie, virová
- Zápal plic
- Koronavirové infekce
- Infekce Coronaviridae
- Infekce Nidovirales
- Patologické stavy, příznaky a symptomy
- Postakutní syndrom COVID-19
- Terapeutika
- Chirurgické postupy, operativní
- Odstraňování složek krve
- Detoxikace sorpce
- Mimorkorporální cirkulace
- Plazmaphereses
Další identifikační čísla studie
- NL-009359
Plán pro data jednotlivých účastníků (IPD)
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Popis plánu IPD
all request will be discussed within the study team
Informace o lécích a zařízeních, studijní dokumenty
Studuje lékový produkt regulovaný americkým FDA
Studuje produkt zařízení regulovaný americkým úřadem FDA
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