NCT03348228

Brief Summary

Hydroxycitrate (HCA) is a compound extracted from the fruit, Garcinia Cambogia. Hydroxycitrate supplements are available over the counter and are primarily promoted as a weight loss supplement. There has been recent evidence that hydroxycitrate is a potent inhibitor of calcium oxalate crystal growth and can lead to the dissolution of the crystals. The purpose of this research study is to study the effect of Hydroxycitrate (HCA) supplements on HCA urinary excretion and on urine chemistries in kidney stone formers and normal subjects.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2018

Typical duration for not_applicable

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

First Submitted

Initial submission to the registry

November 15, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 20, 2017

Completed
11 months until next milestone

Study Start

First participant enrolled

October 4, 2018

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 15, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2020

Completed
Last Updated

January 26, 2022

Status Verified

January 1, 2022

Enrollment Period

2.2 years

First QC Date

November 15, 2017

Last Update Submit

January 11, 2022

Conditions

Keywords

Hydroxycitrate Supplements

Outcome Measures

Primary Outcomes (1)

  • changes in urinary excretion of citrate

    Paired t-tests will be performed to compare any changes in citrate before and after the intervention.

    7 Days

Study Arms (2)

Control Group

PLACEBO COMPARATOR

Participants willrecord a self-selected diet for 3 days and then perform two 24-hour urine collections on the last 2 days of this diet. HCA will be administered afterwards to both groups (see methods below) for 7 days

Dietary Supplement: Hydroxycitrate (HCA)

Calcium Stone Formers

ACTIVE COMPARATOR

Participants willrecord a self-selected diet for 3 days and then perform two 24-hour urine collections on the last 2 days of this diet. HCA will be administered afterwards to both groups (see methods below) for 7 days

Dietary Supplement: Hydroxycitrate (HCA)

Interventions

Hydroxycitrate (HCA)DIETARY_SUPPLEMENT

Hydroxycitrate supplements are available over the counter and are primarily promoted as a weight loss supplement. Each subject will be given 42 capsules of Swanson super citrimax (hydroxycitrate) Details of the product are provided above. The subjects will be asked to take the capsules over a seven period (6 capsules per day).

Calcium Stone FormersControl Group

Eligibility Criteria

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

You may qualify if:

  • Stone formers group:
  • Established diagnosis of recurrent calcium stone formers
  • Ages between 18 and 80
  • Subjects must be able to read and follow instructions clearly and able to do 24 hour urine collections.
  • Subjects must be voluntarily willing and able to sign an informed consent form.
  • Control Group:

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

New York University School of Medicine

New York, New York, 10016, United States

Location

MeSH Terms

Conditions

Nephrolithiasis

Interventions

hydroxycitric acid

Condition Hierarchy (Ancestors)

Kidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisMale Urogenital Diseases

Study Officials

  • David Goldfarb, MD

    NYU Langone Health

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 15, 2017

First Posted

November 20, 2017

Study Start

October 4, 2018

Primary Completion

December 15, 2020

Study Completion

December 15, 2020

Last Updated

January 26, 2022

Record last verified: 2022-01

Locations