NCT05516472

Brief Summary

The purpose of this study is to measure the impact of Microbial Transplant Therapy (MTT) on 24-hour urine parameters in recurrent hypercalciuric and hyperoxaluric kidney stone formers.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
36

participants targeted

Target at P50-P75 for early_phase_1

Timeline
10mo left

Started Oct 2024

Typical duration for early_phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress66%
Oct 2024Mar 2027

First Submitted

Initial submission to the registry

August 23, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 25, 2022

Completed
2.1 years until next milestone

Study Start

First participant enrolled

October 10, 2024

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2027

Last Updated

March 10, 2025

Status Verified

February 1, 2025

Enrollment Period

2.1 years

First QC Date

August 23, 2022

Last Update Submit

March 6, 2025

Conditions

Keywords

microbial transplant therapykidney stones

Outcome Measures

Primary Outcomes (3)

  • Proportion of participants with an adverse event

    Baseline to day 30 (plus or minus 3 days) after fecal transplant

  • Changes in 24 hour urinary oxalate concentration

    Baseline to weeks 1, 3, and 5

  • Changes in 24 hour urinary calcium concentration

    Baseline to week 1, 3, and 5

Secondary Outcomes (2)

  • Metagenomic changes to subject microbiota pre-MTT

    Prior to fecal transplant (baseline)

  • Metagenomic changes to subject microbiota post-MTT

    weeks 4 and 5 after MTT

Study Arms (4)

Hyperoxaluric group

EXPERIMENTAL

Treatment group based on 24 hour urine analysis showing oxalate \>40 mg/day.

Drug: Microbial Transplant Therapy

Hypercalciuric Group

EXPERIMENTAL

Treatment group based on 24 hour urine analysis showing urinary calcium \>225 mg/day.

Drug: Microbial Transplant Therapy

Control group Hyperoxaluria

PLACEBO COMPARATOR

Control group enrolling patients with hyperoxaluria

Drug: Placebo

Control group Hypercalciuria

PLACEBO COMPARATOR

Control group enrolling patients with hypercalciuria

Drug: Placebo

Interventions

Participants will take microbial capsules, 2 capsules daily for 7 days

Also known as: fecal transplant
Hypercalciuric GroupHyperoxaluric group

Participants will take placebo capsules

Control group HypercalciuriaControl group Hyperoxaluria

Eligibility Criteria

Age18 Years - 69 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Women and men age greater than or equal to 18 and less than 70
  • Recent medical history of USD with greater than or equal to 50% calcium-oxalate stones. All patients will have urinary stone disease confirmed by stone analysis. The study will include patients with either stones extracted by urological intervention or spontaneously passed and collected stones.
  • hour urinary calcium concentration greater than 225 mg/day or urinary oxalate greater than 40 mg/day
  • Able to give informed consent.
  • Willing to undergo telephone follow-up to assess for safety and adverse events
  • Willing and able to participate in the study requirements, including study visits, 24-hour urine collection and serial stool collection
  • Not actively participating in another interventional USD clinical trial
  • Estimated Glomerular Filtration Rate (eGFR) greater than or equal to 60.

You may not qualify if:

  • Presence of three features of metabolic syndrome as defined by the NIH to have 3 or more of the following conditions:
  • Large waist - A waistline that measures at least 35 inches (89 centimeters) for women and 40 inches (102 centimeters) for men
  • High triglyceride level - 150 milligrams per deciliter (mg/dL), or 1.7 millimoles per liter (mmol/L), or higher of this type of fat found in blood
  • Reduced good or HDL cholesterol - Less than 40 mg/dL (1.04 mmol/L) in men or less than 50 mg/dL (1.3 mmol/L) in women of high-density lipoprotein (HDL) cholesterol
  • Increased blood pressure - 130/85 millimeters of mercury (mm Hg) or higher
  • Elevated fasting blood sugar - 100 mg/dL (5.6 mmol/L) or higher
  • Presence of features of autoimmunity
  • Major gastrointestinal surgery (e.g. significant bowel resection) within 3 months before enrollment. This does not include appendectomy or cholecystectomy
  • Diagnosis of inflammatory bowel disease
  • Patient diagnosed with primary hyperparathyroidism. Any patient with a PTH outside the range of 15 - 65 pg/ml will be excluded.
  • Patient diagnosed secondary hyperparathyroidism. Any patient with a PTH outside the range of 15 - 65 pg/ml will be excluded.
  • All patients requiring pancreatic enzyme replacement will be excluded.
  • Patient with ongoing dialysis treatment
  • Received chemotherapy treatment in the last 1 year
  • Treatment with antibiotics within 3 months of study entry. If subjects need to take antibiotics unexpectedly during the trial, they are excluded if they have already taken the fecal material transplant; if not, they can re-enroll in 3 months.
  • +15 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Park City Hospital

Park City, Utah, 84060, United States

RECRUITING

MeSH Terms

Conditions

Kidney Calculi

Interventions

Fecal Microbiota Transplantation

Condition Hierarchy (Ancestors)

NephrolithiasisKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisUrinary CalculiMale Urogenital DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Biological TherapyTherapeutics

Study Officials

  • Joshua Stern, MD

    Intermountain Health Care, Inc.

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Daniel Del Valle, MS

CONTACT

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
single-blinded
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Prospective, randomized, placebo-controlled
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Chief of Urology

Study Record Dates

First Submitted

August 23, 2022

First Posted

August 25, 2022

Study Start

October 10, 2024

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

March 1, 2027

Last Updated

March 10, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will share

The results of this study will be shared with the external collaborators on this study as per the clinical research agreement and as defined in the informed consent document.

Shared Documents
STUDY PROTOCOL

Locations