NCT03317678

Brief Summary

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at below P25 for not_applicable depression

Timeline
Completed

Started Feb 2017

Longer than P75 for not_applicable depression

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 10, 2017

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

June 6, 2017

Completed
5 months until next milestone

First Posted

Study publicly available on registry

October 23, 2017

Completed
5.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 7, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 7, 2022

Completed
Last Updated

December 9, 2022

Status Verified

December 1, 2022

Enrollment Period

5.8 years

First QC Date

June 6, 2017

Last Update Submit

December 8, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes in total score on the Montgomery-Åsberg Depression Rating

    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 Outcomes (3)

  • Changes in Clinical Global Impression-Severity Scale (CGI)

    Baseline assessments and every 2 weeks over 91 days

  • Change in total score on the Computerized Adaptive Testing for Depression (CAT-D)

    Baseline assessments and every 2 weeks over 91 days

  • Analysis of Intestinal Microbiota pre and post intervention

    Baseline and after 56 days of intervention.

Study Arms (2)

BioKefir (BKP)

EXPERIMENTAL

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.

Dietary Supplement: BioKefir

Non-fermented Milk (NFM)

PLACEBO COMPARATOR

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.

Dietary Supplement: Non-fermented milk

Interventions

BioKefirDIETARY_SUPPLEMENT

BKP BioKefir (Lifeway Foods) is a lactose-free fermented milk product containing 12 different bacteria provided in a drink.

BioKefir (BKP)
Non-fermented milkDIETARY_SUPPLEMENT

A non-fermented milk drink.

Non-fermented Milk (NFM)

Eligibility Criteria

Age21 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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.

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

RushUMC

Chicago, Illinois, 60612, United States

Location

MeSH Terms

Conditions

Depression

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 6, 2017

First Posted

October 23, 2017

Study Start

February 10, 2017

Primary Completion

December 7, 2022

Study Completion

December 7, 2022

Last Updated

December 9, 2022

Record last verified: 2022-12

Data Sharing

IPD Sharing
Will not share

Locations