- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03317678
Fermented Milk Product With Probiotic and Its Impact on Mood of Patients With Treatment Resistant Depression
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Theories about the association of imbalances in the gastro-intestinal (GI) microbiota and its impact on mood states have long existed in medicine. These theories were considered "dead" for most of the 20th century, but converging lines of evidence are now rekindling interest in a link between the GI microbiota and the central nervous system. Newer lines of investigation have made these dormant theories relating commensal microbiota and mood states not only plausible, but the focus of well-designed basic research studies (Yano et al, 2015; Hsiao et al, 2013). The microbial world influence on brain development and behavior was defined by Dr Tom Insel, the former director of the National Institutes of Mental Health as one the "great frontiers" of neuroscience in the next decade (Insel, 2012). Dr. Francis Collins, Director of the National Institutes of Health, further underscored the need for research on the impact of intestinal microbiota on brain function (Collins, 2014).
This renewed interest in understanding the role of the microbiota beyond the digestive tract was spurred in 2007 when the Human Microbiome Project was launched. (Turnbaugh et al, 2007). With over one million different genes and a mass equal to that of the human brain, the genetic diversity of our bacterial commensals outnumbers the human genome by a factor of over 100 to one, and suggests the potential for the genetic variability in the GI environment to impact other body systems, including the central nervous system (CNS). A range of neurotransmitters relevant to mood and anxiety disorders including serotonin, GABA, acetylcholine and endocannabinoids are produced by intestinal microbiota (Dinan et al, 2013). This accruing data along with previous findings showing that pathological gut bacterium are capable of inducing changes in behavior (Lyte et al, 1998) and that early life stress, an established risk factor for major depression, induces changes in the microbiota (O'Mahony et al, 2007) underscore the potential importance of further examining the relationship between the microbiota and brain function with particular attention to the potential therapeutic implications for treatment of psychiatric conditions, such as depression
Preclinical studies demonstrated that noninvasive methods that alter gut microbiota are capable of inducing antidepressant like effects in rat models of depression (Desbonnet et al, 2010). Findings in human populations showed differences in gut flora of depressed individuals when compared to healthy controls, including higher levels of Bacteroidetes, Proteobacteria and Actinobacteria, and a negative correlation between Faecalibacterium and the severity of their depression (Jiang et al, et al 2015). Other studies point to a beneficial effect of probiotics on mood and anxiety in normal volunteers (Messaoudi et al, 2011; Benton et al, 2007), as well as in individuals with Irritable Bowel Syndrome (O' Mahoney et al, 2005) and Chronic Fatigue Syndrome (Rao et al, 2009). However, there have been no systematic studies to date reporting on the impact of probiotics on mood in individuals with major depression.
The majority of depressed patients remain symptomatic despite treatment with currently available antidepressants, and a significant proportion do not respond at all. Thus, the development of new effective antidepressant interventions remains a significant unmet public health need. Given the accumulating evidence for a relationship between the gastrointestinal microbiota and the central nervous system functioning and pathophysiology, including that of affective disorders, it is cogent to measure the impact of probiotic interventions in individuals with refractory depression. The present study proposes to examine the gut microbiota, inflammatory milieu and impact of probiotics on mood in a population of individuals who have been refractory to treatment with standard antidepressant agents.
This study aims to assess the impact of a chronic dietary intervention (8 weeks) with probiotics, specifically Fermented Milk Product with Probiotic (FMPP), on the mood of individuals with Major Depressive Disorder (MDD) refractory to standard antidepressant therapy, and its association with changes in intestinal microbiota and markers of inflammation.
Specific Aim 1. Examine the effect of 8 weeks of probiotic administration on depressive symptoms in depressed patients.
Specific Aim 2. Examine the intestinal microbiota at initiation and end of probiotic administration in order to assess the relationship of baseline and changes in gut flora with treatment response.
Specific Aim 3. Examine baseline and endpoint inflammatory biomarkers including C-reactive protein (CRP) and cytokines to assess the relationship of inflammation with intestinal microbiota and treatment response.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Illinois
-
Chicago, Illinois, United States, 60612
- RushUMC
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria
- Men and women between 21 and 65 years of age meeting DSM-V criteria for Major Depressive Disorder and presenting a HAM-D score of 18 or higher.
- If patients are on antidepressants (ie. fluoxetine 20 mg/d or its equivalent) the dose needs to be stable for at least 6 weeks prior to screening.
- Patients with Body Mass Indexes between 18 and 40.
- No planned antibiotic treatment during study to avoid antibiotic treatments for the duration of the study.
Exclusion Criteria
- Patients who are vegan or observe other specific dietary patterns that are not representative of the general population and may specifically impact their microbiomes will be excluded from the study.
- Lactose intolerant patients will not be able to participate due to the high likelihood of being unable to tolerate the specific intervention being implemented.
- Patients who have used BKP or Yogurt without probiotics daily for 12 weeks preceding study entry and unwilling to stop.
- Patients with a past history of Eating Disorders or Psychotic Disorders. Patients with Bipolar Disorder, past or current, who are currently taking a mood stabilizer.
- Patients with Substance Use Disorder. Within the past 12 months.
- Patients with a history of 3 or more failed trials of antidepressant medications of adequate dose or duration (i.e. fluoxetine 20 mg/d or its equivalent for 6 weeks or more).
- Patients with other significant clinical illnesses such as, but not limited to, Congestive Heart Failure, Diabetes Mellitus, Chronic Obstructive Pulmonary Disease.
- Patients who are currently using corticosteroid medications, or who have a history of multiple treatment courses with these medications.
- Patients on antibiotic treatment at the time of study entry or who have received such treatment during the 30 days prior to study entry.
- Patients using anti-inflammatory medications.
- Patients who are actively suicidal.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: BioKefir (BKP)
BioKefir™ (Lifeway Foods) is a lactose-free fermented milk drink containing 12 different species of bacteria within the lactobacillus, bifidobacterium, and streptococcus generas totaling approximately 20 CFU per 3.5 ounce serving.
The product also contains 2 g of fiber, including pectin and inulin.
These fibers, especially inulin, are prebiotics that may function along with the probiotic species to support gastrointestinal health.
The product is available commercially.
Participants will be asked to consume 3.5 ounces twice daily, preferably at morning and nighttime.
The probiotic will be provided in individual 3.5 ounce unlabeled containers.
These quantities will be started on the first day of the intervention phase of the study (day 0, visit 0) and remain unchanged until the end of the intervention phase on day 56 (visit +4).
Administration will be discontinued then.
|
BKP BioKefir (Lifeway Foods) is a lactose-free fermented milk product containing 12 different bacteria provided in a drink.
|
Placebo Comparator: Non-fermented Milk (NFM)
The NFM is dairy-based product ultra-filtered to remove lactose.
In addition to being matched to lactose, the NFM contains similar energy, fat, and protein content as the probiotic.
Participants will be asked to consume 3.5 ounces twice daily, preferably at morning and nighttime.
The NFM control will be provided in 11.5 ounce unlabeled containers.
These quantities will be started on the first day of the intervention phase of the study (day 0, visit 0) and remain unchanged until the end of the intervention phase on day 56 (visit +4).
Administration will be discontinued then.
|
A non-fermented milk drink.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in total score on the Montgomery-Åsberg Depression Rating
Time Frame: Baseline assessments and every 2 weeks over 91 days
|
The primary outcome measure will be change in the Montgomery-Åsberg Depression Rating Scale (MADRS).
The MADRS is a 10-item scale for the evaluation of depressive symptoms (Montgomery & Åsberg, 1979).
|
Baseline assessments and every 2 weeks over 91 days
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in Clinical Global Impression-Severity Scale (CGI)
Time Frame: Baseline assessments and every 2 weeks over 91 days
|
Change in the Clinical Global Impression-Severity Scale (CGI) from baseline to weekly assessments.
The CGI is a 7 point scale that measures symptom illness and global improvement or changes in severity
|
Baseline assessments and every 2 weeks over 91 days
|
Change in total score on the Computerized Adaptive Testing for Depression (CAT-D)
Time Frame: Baseline assessments and every 2 weeks over 91 days
|
CAT-D is a multidimensional item response questionnaire that selects a small-targeted set of items for each individual from a much larger bank of test items.
CAT yields scores ranging from 0 to 100 and these will be used to assess changes in participants' mood from baseline and weekly assessments.
|
Baseline assessments and every 2 weeks over 91 days
|
Analysis of Intestinal Microbiota pre and post intervention
Time Frame: Baseline and after 56 days of intervention.
|
A quantitative analysis of the fecal microbiome will be conducted
|
Baseline and after 56 days of intervention.
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 16060902
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Depression
-
ProgenaBiomeRecruitingDepression | Depression, Postpartum | Depression, Anxiety | Depression Moderate | Depression Severe | Clinical Depression | Depression in Remission | Depression, Endogenous | Depression ChronicUnited States
-
Washington University School of MedicineCompletedTreatment Resistant Depression | Late Life Depression | Geriatric Depression | Refractory Depression | Therapy-Resistant DepressionUnited States, Canada
-
Kintsugi Mindful Wellness, Inc.Sonar Strategies; Vituity PsychiatryRecruitingDepression | Depression Moderate | Depression Severe | Depression MildUnited States
-
University of California, San FranciscoRecruitingDepression Moderate | Depression Mild | Depression, TeenUnited States
-
University GhentUniversiteit Antwerpen; Janssen-Cilag Ltd.RecruitingDepression Moderate | Depression Severe | Depression MildBelgium
-
Baylor College of MedicineUniversity of TexasRecruitingDepression | Depression Moderate | Depression Severe | Suicide and Self-harm | Depression in Adolescence | Depression MildUnited States
-
University of Cape TownNational Institute of Mental Health (NIMH)CompletedPostpartum Depression | Clinical Depression | Moderate DepressionSouth Africa
-
Washington University School of MedicinePatient-Centered Outcomes Research Institute; National Institute of Mental...CompletedMajor Depressive Disorder | Treatment Resistant Depression | Treatment-Refractory Depression | Late Life Depression | Geriatric DepressionUnited States, Canada
-
Lawson Health Research InstituteTerminated
-
Gerbera Therapeutics, Inc.Not yet recruitingPostpartum Depression | Depression, Postpartum | Postnatal Depression | Post-partum Depression | Post-Natal DepressionUnited States