Clinical trial Recruiting at 1 site Observational Ages 18 and up

Evaluating gut microbiome in patients with POEMS syndrome and other plasma cell disorders

Official title: Gut Microbiome Studies in Patients With POEMS Syndrome and Other Plasma Cell Disorders

Run by Mayo Clinic · NCT06252948 · Data updated 2026-11-12

This study looks at the gut bacteria in people with POEMS syndrome and other plasma cell disorders to see how it differs from healthy individuals and how it might change between active disease and remission.

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Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment240 (estimated)
SponsorMayo Clinic
Academic / other
Drugs / interventionsChemotherapy, radiation
Locations1 site (Rochester, Minnesota)
StatusRecruiting
StartedDecember 29, 2021
Main results expectedDecember 1, 2028
Study endsDecember 29, 2028
Registry record updatedFebruary 23, 2026
Trial IDNCT06252948 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include individuals diagnosed with POEMS syndrome, AL amyloidosis, multiple myeloma, or monoclonal gammopathy of undetermined significance.

Probably not a fit

Patients under 18 years, pregnant individuals, or those with chronic gastrointestinal disorders may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to investigate the characteristics and role of the gut microbiome in patients with POEMS syndrome and other plasma cell disorders, such as AL amyloidosis. Researchers will analyze stool samples from newly diagnosed POEMS patients and compare them with samples from patients with other plasma cell disorders and healthy controls. The study will also examine differences in gut microbiome signatures between active disease and remission in POEMS patients. The goal is to enhance understanding of the relationship between gut microbiome and these rare disorders.

Why it matters

Potential benefit: If successful, this study could provide insights into the gut microbiome's role in plasma cell disorders, potentially leading to new therapeutic strategies.

How similar studies have gone: While the specific focus on gut microbiome in POEMS syndrome is novel, similar studies in other conditions have shown promising results.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosed with POEMS syndrome (newly diagnosed or in remission) or with newly diagnosed multiple myeloma (MM), monoclonal gammopathy of undetermined significance (MGUS), amyloid light chain (AL) amyloidosis or healthy controls from their households

Exclusion Criteria:

* Age under 18 years
* Pregnancy
* Substance abuse
* Antibiotics use or gastrointestinal endoscopy in the 3 months prior to the study participation
* Chronic gastrointestinal disorder
* Gastrointestinal surgeries in the past 2 years
* Chemotherapy (including anti-plasma cell treatment and steroids) or radiation treatment for cancer within the last 2 years or active cancer (other than plasma cell disorder)

Where it's running

  • Mayo Clinic in Rochester
    Rochester, Minnesota, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.