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Testare il potenziale effetto metabolico del peptide batterico intestinale umano, Rucilp, negli uomini sani

28 settembre 2026 aggiornato da: Oluf Pedersen

The goal of this randomized, double-blinded and placebo-controlled clinical cross-over trial is in healthy men to explore the potential metabolic effects of the naturally occurring gut bacterial polypeptide, RUCILP. This bacterial peptide is produced by commensal strains of Ruminococcus torques in the human gut microbiota.

In preclinical studies of rodents, RUCILP lowers blood glucose and stimulates release of plasma insulin, glucagon-like peptide-1(GLP-1) and Peptide YY (PYY) but induces a decline of glucose-dependent insulinotropic polypeptide (GIP).

In the present trial, the investigators want to explore potential effects of intraduodenally delivered RUCILP on release of plasma concentrations of GLP-1, GIP and PYY.

In addition, the investigators will test for potential effects of intestinal RUCILP infusion on plasma concentrations of glucose, insulin and metabolome.

Participants will have a duodenal tube placed into which RUCILP or placebo will be infused over 3 hours after an initial standardized liquid meal infusion into the duodenal tube.

Participants will on different days and in a randomized order receive either placebo or RUCILP infusion into the tube.

Safety is acutely monitored under the intervention and postintervention safety is monitored by clinical biochemistry measures of hematology, and liver and kidney functions. The study participants will further keep a diary of any experienced adverse effects during the week after the intervention.

Primary OUTCOMES: a composite of changes in plasma concentrations of GLP-1, GIP and PYY.

Secondary OUTCOMES: changes in plasma glucose, plasma insulin and plasma metabolome profile.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Effettivo)

17

Fase

  • Fase 1

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Hellerup, Danimarca, 2900
        • Gentofte Hospital

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 35 anni (Adulto)

Accetta volontari sani

Sì

Sessi ammissibili allo studio

Maschio

Descrizione

Inclusion Criteria:

  • Age between 18 and 35 years
  • Self-reported good health
  • Caucasian
  • Normal body mass index (18.5 to <25)

Exclusion Criteria:

  • Any known disorder/disease that could interfere with study results or is seen as compromising to the study (as assessed by the investigator), for example diabetes, cancer or cardiovascular or kidney disease.
  • Use of any daily medication as well as p.r.n. (pro re nata; not taken regularly) medication that cannot be discontinued during the trial
  • Use of antibiotics during the recent three months
  • Acute or chronic gastrointestinal symptoms
  • Lactose intolerance
  • Smoking
  • Alcohol or drug abuse
  • Use of creatine as dietary supplement during study period
  • Plasma creatinine concentration above the normal range (>105 μmol/L)
  • Known significant liver disease or plasma ALAT concentration ≥ 3 × normal value
  • Values for hemoglobin, leukocytes, or thrombocytes outside of the normal ranges

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Scienza basilare
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione incrociata
  • Mascheramento: Quadruplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Comparatore placebo: Placebo

Placebo comparator that is identical to the active arm except for the absence of RUCILP

Placebo is identical to the active intervention except for the absence of the RUCILP molecule.

Comparatore attivo: Active

Intervention is identical to the placebo arm except for the addition of RUCILP to the infusion.

The naturally occuring gut peptide RUCILP synthesized by the commensal gut bacterium Ruminococcus torques

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Plasma concentrations of GIP
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma measurements of GIP at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion
Plasma concentrations of GLP-1
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma measurements of GLP-1 at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion
Plasma concentrations of PYY
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma measurements of PYY at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Plasma concentrations of insulin
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma measurements of insulin at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion
Plasma concentrations of glucose
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma measurements of glucose at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion
Plasma metabolome profile
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma metabolome profile at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion
Plasma concentrations of RUCILP
Lasso di tempo: During the 3 hours of RUCILP/placebo infusion

Plasma measurements of RUCILP at different time points during the study day.

During the 3 hours of RUCILP/placebo infusion

Altre misure di risultato

Misura del risultato
Misura Descrizione
Lasso di tempo
Tasso di filtrazione glomerulare stimata (EGFR)
Lasso di tempo: Al basale, a 180 minuti e al follow-up (4-8 giorni dopo il giorno dello studio)
Al basale, a 180 minuti e al follow-up (4-8 giorni dopo il giorno dello studio)
Blood leukocytes
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of leukocytes in blood

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Blood eosinophils
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of eosinophils in blood

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Total blood leukocytes
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of total leukocytes in blood

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Blood neutrophils
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of neutrophils in blood

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Blood platelets
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of platelets in blood

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Blood hemoglobin
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of hemoglobin in blood

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma alanine transaminase (ALT)
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of alanine transaminase (ALT) in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma aspartate transferase (AST)
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of aspartate transferase (AST) in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma alkaline phosphatase
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of alkaline phosphatase in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma albumin
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of albumin in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma creatinine
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of creatinine in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma sodium
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of sodium in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma potassium
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of potassium in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma calcium (total)
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of total calcium in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma phosphate
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of phosphate in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma creatine kinase
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of creatine kinase in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Plasma C-reactive protein
Lasso di tempo: At baseline, at 180 minutes, and at follow-up (4-8 days after study day)

Concentration of C-reactive protein in plasma

At baseline, at 180 minutes, and at follow-up (4-8 days after study day)
Experienced adverse effects post infusion
Lasso di tempo: At 180 minutes.

Number of experienced adverse effects as noted in a diary at end of each study day.

At 180 minutes.
Experienced adverse effects during the four days following an infusion
Lasso di tempo: During four days of follow-up after each study day.

Number of experienced adverse effects as noted in a diary during four days of follow-up after each infusion.

During four days of follow-up after each study day.

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

28 luglio 2025

Completamento primario (Effettivo)

27 agosto 2025

Completamento dello studio (Effettivo)

4 settembre 2025

Date di iscrizione allo studio

Primo inviato

20 marzo 2025

Primo inviato che soddisfa i criteri di controllo qualità

4 aprile 2025

Primo Inserito (Effettivo)

11 aprile 2025

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

29 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

28 settembre 2026

Ultimo verificato

1 aprile 2025

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • H-22011935

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Descrizione del piano IPD

Due to GDPR regulations we are unable to share IPD with other researchers.

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .