DepressionNCT04211467
A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Depression
An observational study of Depression and Clinical Depression, run by ProgenaBiome at 1 site in United States.
Trial summary
This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Depression, Clinical Depression, Depression, Anxiety
- How many people
- 0 participants
- Where
- 1 siteUnited States
- Study dates
- 2 Mar 2020to Jul 2030
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Patients with depression
Who may be able to join
- Signed informed consent, demonstrating that the patient understands the procedures required for the study and the purpose of the study
- May be signed by parent or legal guardian in the case of minor or adult unable to provide consent
- Male or female of all ages. (interest is given to children who present with autism or Crohn's and whose parents wish to analyze their children's gut flora. Also of interest analysis of development of the child's microbiome. In the case of autism, the younger the child, the better to correct the neurological problems if an association is found between autism and the microbiome)
- Diagnosis of depression based on DSM-V criteria
Who cannot join
- Refusal to sign informed consent form
- History of bariatric surgery, total colectomy with ileorectal anastomosis or proctocolectomy.
- Postoperative stoma, ostomy, or ileoanal pouch
- Participation in any experimental drug protocol within the past 12 weeks
- Treatment with total parenteral nutrition
Trial locations and contacts
1 site in 1 country.
About this study
This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records
Read the detailed description
The goal of this Research Study is to better understand how the genetic information in subject's microbiome correlates to depression.
- Conditions
- Depression, Clinical Depression, Depression, Anxiety, Depression, Postpartum, Depression, Endogenous, Depression in Remission
- Being tested
- No Intervention
- Medical subject headings
- Depression, Depressive Disorder, Major, Anxiety Disorders, Depression, Postpartum, Depressive Disorder
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
No InterventionOther
There is no intervention for this study
| Study group | Role | What they receive |
|---|---|---|
| Depression | Patients who have been diagnosed with depression Receives: Other: No Intervention |
What is being measured
The primary outcome is the main question the study is designed to answer.
Correlation of Microbiome to Disease via Relative Abundance Found in Microbiome Sequencing
Relative abundance of bacterial classes within taxonomic phyla and, more broadly, within their domain will be analyzed by sequencing the gut microbiome. These data will then be categorized with
Measured: Three years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Dec 2019
- Study start2 Mar 2020
- Primary completionMar 2030 (estimated)
- Study completionJul 2030 (estimated)
Why it stopped: Company shifted focus
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for DepressionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case only
- Time perspective
- Prospective
- Enrolment
- 0 participants (actual)
Sponsor and investigators
- Lead sponsor
- ProgenaBiome
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Sabine Hazan, MD, Principal investigator, ProgenaBiome
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04211467
- Sponsor's protocol ID
- PRG-027
- Status last verified
- Jun 2025
- First submitted
- 23 Dec 2019
- Last updated
- 5 Jun 2025
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: There is no plan to share individual patient data
Study at a glance
From the registry record, last updated by the sponsor on 5 Jun 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Depression
- ClinicalTrials.gov ID
- NCT04211467
- Acronym / sponsor ID
- PRG-027
- Conditions
- Depression, Clinical Depression, Depression, Anxiety, Depression, Postpartum, Depression, Endogenous, Depression in Remission
- Study type
- Observational
- Recruitment status
- WithdrawnReason stopped: Company shifted focus
- Enrolment
- 0 participants (actual)
- Lead sponsor
- ProgenaBiomeUniversity, hospital or other
- Study start
- 2 Mar 2020 (actual)
- Primary completion
- Mar 2030 (estimated)
- Study completion
- Jul 2030 (estimated)
- First posted
- 26 Dec 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records
Detailed description
The goal of this Research Study is to better understand how the genetic information in subject's microbiome correlates to depression.
Study design
- Observational model
- Case only
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Depression | – | Other: No InterventionPatients who have been diagnosed with depression |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Patients with depression
Key inclusion criteria (4 listed)
- Signed informed consent, demonstrating that the patient understands the procedures required for the study and the purpose of the study
- Male or female of all ages. (interest is given to children who present with autism or Crohn's and whose parents wish to analyze their children's gut flora. Also of interest analysis of development of the child's microbiome. In the case of autism, the younger the child, the better to correct the neurological problems if an association is found between autism and the microbiome)
- Diagnosis of depression based on DSM-V criteria
Key exclusion criteria (5 listed)
- Refusal to sign informed consent form
- History of bariatric surgery, total colectomy with ileorectal anastomosis or proctocolectomy.
- Postoperative stoma, ostomy, or ileoanal pouch
- Participation in any experimental drug protocol within the past 12 weeks
- Treatment with total parenteral nutrition
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| No InterventionThere is no intervention for this study | Other | Depression |
Primary outcome
Correlation of Microbiome to Disease via Relative Abundance Found in Microbiome Sequencing
Time frame: Three years
Relative abundance of bacterial classes within taxonomic phyla and, more broadly, within their domain will be analyzed by sequencing the gut microbiome. These data will then be categorized with
Results and safety
The study was withdrawn before enrolling participants, so there are no results.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Jun 2025.
- Individual participant dataSharing planned: No. There is no plan to share individual patient data
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sabine Hazan, MD principal investigator
ProgenaBiome
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Depression and Clinical Depression, run by ProgenaBiome at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: withdrawn, as of the sponsor's last update on 5 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study was withdrawn before enrolling participants, so there are no results.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Correlation of Microbiome to Disease via Relative Abundance Found in Microbiome Sequencing (time frame: Three years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jun 2025.