- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07383701
Lactiplantibacillus Plantarum 299v-probiotikatilskud til patienter med diabetisk makulaødem
Lactiplantibacillus Plantarum 299v Probiotisk Kosttilskud hos Patienter med Diabetisk Makulaødem
This pilot prospective, interventional, longitudinal study, aims to evaluate the potential benefits of the probiotic supplement Lactobacillus plantarum 299v in patients with diabetic macular edema (DME).
The study seeks to address the following questions:
- Does central macular thickness on optical coherence tomography decrease after 4 months of supplementation?
- Is visual acuity improved at 1, 2, 3, and 4 months following initiation of supplementation?
- Is the number of anti-VEGF injections reduced following initiation of supplementation?
Outcomes will be compared to a control group, using historic retrospective data.
Participants will take Lactobacillus plantarum 299v orally twice daily for four months.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Study Design: Prospective open label longitudinal interventional study with oral probiotic supplement Lactobacillus plantarum.
Inclusion criteria: Age of at least 18 years, presence of DME at the current clinical visit
Exclusion criteria: Patients with contraindication to probiotic supplement (e.g. prior allergy or GI intolerance and any type of immunocompromised diseases).
Eligible individuals (patients at least 18 years old with diabetic macular
Participants: Patients with DME that belong in the following two groups:
- Group A: 12 Patients with mild DME and good visual acuity (<= 20/30) similar to DRCR network protocol V that do not need anti-VEGF injections as per standard clinical care.
- Group B: 12 Patients with DME that need anti-VEGF injections as per standard clinical care.
Intervention: Oral probiotic supplement L. plantarum 299v twice daily for 4 months for both groups.
Study outcomes:
- OCT with central macular thickness (CMT) at 1, 2, 3, 4-months follow-up.
- Visual Acuity at 1, 2, 3, 4-months follow-up.
- Number of anti VEGF injections.
In group A, the percentage of patients with a stability or improvement in DME as determined by a stability (+/- 9% of OCT CMT) or a reduction of DME (>= 30 microns or >= 10% decrease of CMT) from baseline will be measured. Secondary endpoints will be visual acuity and need for injection initiation during the 4 months.
In group B, the same outcomes as in group A will be measured. Furthermore, the number of injections group A over the course of 4 months will be evaluated.
Data from both groups will be compared to historical data available at the study site.
Undersøgelsestype
Tilmelding (Anslået)
Fase
- Fase 2
Kontakter og lokationer
Studiekontakt
- Navn: Demetrios G. Vavvas, MD PhD
- Telefonnummer: 6175736874
- E-mail: Demetrios_Vavvas@meei.harvard.edu
Studiesteder
-
-
Massachusetts
-
Boston, Massachusetts, Forenede Stater, 02114
- Rekruttering
- Mass Eye and Ear
-
Kontakt:
- Demetrios G. Vavvas, MD PhD
- Telefonnummer: 617-573-6874
- E-mail: Demetrios_Vavvas@meei.harvard.edu
-
Ledende efterforsker:
- Demetrios G. Vavvas, MD PhD
-
-
Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Age of at least 18 years, presence of DME at the current clinical visit
Exclusion Criteria:
- Patients with contraindication to probiotic supplement (e.g. prior allergy or GI intolerance and any type of immunocompromised diseases).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Main Arm - twice daily for 4 months
This is the only arm in this study. All participants will receive 4 months of Lactobacillus plantarum supplementation. |
Lactiplantibacillus Plantarum 299v Probiotic Supplementation, Twice Daily, for 4 Months |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Central Macular Thickness
Tidsramme: 1,2,3,4-months following supplement initiation
|
Central macular thickness (CMT) on optical coherence tomography |
1,2,3,4-months following supplement initiation
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Best corrected visual acuity
Tidsramme: 1, 2, 3, 4-months following supplement initiation
|
Best corrected visual acuity |
1, 2, 3, 4-months following supplement initiation
|
|
Anti-VEGF Frequency
Tidsramme: At 1,2,3,4-months following supplement initiation
|
Number of anti VEGF injections |
At 1,2,3,4-months following supplement initiation
|
Samarbejdspartnere og efterforskere
Publikationer og nyttige links
Generelle publikationer
- Senger DR, Li D, Jaminet SC, Cao S. Activation of the Nrf2 Cell Defense Pathway by Ancient Foods: Disease Prevention by Important Molecules and Microbes Lost from the Modern Western Diet. PLoS One. 2016 Feb 17;11(2):e0148042. doi: 10.1371/journal.pone.0148042. eCollection 2016.
- Kensler TW, Wakabayashi N, Biswal S. Cell survival responses to environmental stresses via the Keap1-Nrf2-ARE pathway. Annu Rev Pharmacol Toxicol. 2007;47:89-116. doi: 10.1146/annurev.pharmtox.46.120604.141046.
- Li JQ, Welchowski T, Schmid M, Letow J, Wolpers C, Pascual-Camps I, Holz FG, Finger RP. Prevalence, incidence and future projection of diabetic eye disease in Europe: a systematic review and meta-analysis. Eur J Epidemiol. 2020 Jan;35(1):11-23. doi: 10.1007/s10654-019-00560-z. Epub 2019 Sep 12.
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Anslået)
Studieafslutning (Anslået)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- 2025P001157
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Individual participant data will not be shared. Although data would be de-identified, the small sample size and single-center design increase the risk of re-identification. Therefore, results will be reported in aggregate only. There are no current plans for external sharing of IPD.
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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