- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT07383701
Lactiplantibacillus Plantarum 299v-probiotikatillskott hos patienter med diabetisk makulaödem
Lactiplantibacillus Plantarum 299v-probiotika Kosttillskott hos Patienter med Diabetisk Makulaödem
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.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Inskrivning (Beräknad)
Fas
- Fas 2
Kontakter och platser
Studiekontakt
- Namn: Demetrios G. Vavvas, MD PhD
- Telefonnummer: 6175736874
- E-post: Demetrios_Vavvas@meei.harvard.edu
Studieorter
-
-
Massachusetts
-
Boston, Massachusetts, Förenta staterna, 02114
- Rekrytering
- Mass Eye and Ear
-
Kontakt:
- Demetrios G. Vavvas, MD PhD
- Telefonnummer: 617-573-6874
- E-post: Demetrios_Vavvas@meei.harvard.edu
-
Huvudutredare:
- Demetrios G. Vavvas, MD PhD
-
-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
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
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Experimentell: 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 |
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Central Macular Thickness
Tidsram: 1,2,3,4-months following supplement initiation
|
Central macular thickness (CMT) on optical coherence tomography |
1,2,3,4-months following supplement initiation
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Best corrected visual acuity
Tidsram: 1, 2, 3, 4-months following supplement initiation
|
Best corrected visual acuity |
1, 2, 3, 4-months following supplement initiation
|
|
Anti-VEGF Frequency
Tidsram: At 1,2,3,4-months following supplement initiation
|
Number of anti VEGF injections |
At 1,2,3,4-months following supplement initiation
|
Samarbetspartners och utredare
Publikationer och användbara länkar
Allmänna 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.
Studieavstämningsdatum
Studera stora datum
Studiestart (Faktisk)
Primärt slutförande (Beräknad)
Avslutad studie (Beräknad)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Faktisk)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Andra studie-ID-nummer
- 2025P001157
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
IPD-planbeskrivning
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.
Läkemedels- och apparatinformation, studiedokument
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