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Polycystic Kidney DiseasePhase 2NCT02558595

Pilot Study of Niacinamide in Polycystic Kidney Disease (NIAC-PKD2)

A Phase 2 study testing Niacinamide in people with Polycystic Kidney Disease, run by University of Kansas Medical Center at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to observe the effects of niacinamide on markers of kidney injury, inflammation, kidney cyst growth and kidney function. Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Polycystic Kidney Disease
What is being tested?
Niacinamide
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
36 participants
Where
1 siteUnited States
Study dates
22 Sep 2015to 18 Dec 2017
Phase
Phase 2
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 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Confirmed diagnosis of autosomal dominant polycystic kidney disease (ADPKD).
  • Estimated glomerular filtration rate (eGFR) > 50 ml/min/1.73m2 as determined from the serum creatinine by the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation
  • Provide Informed consent

Who cannot join

  • History of liver disease or abnormal liver function test
  • Heavy alcohol intake
  • Chronic diarrhea or malabsorption syndrome
  • Thrombocytopenia
  • Hypophosphatemia
  • Pregnancy or lactation or plan to become pregnant during the study
Show all 14Show fewer
  • Treatment with anti-epileptic drugs
  • Treatment with tolvaptan, current or within 2 months prior to screening
  • Participation in another interventional trial currently or within 2 months prior to screening.
  • Exclusions specific to magnetic resonance (MR) imaging acquisition and measurement:
  • Partial or total nephrectomy or renal cyst reduction (including aspiration) done <1 year ago
  • Cardiac pacemaker.
  • Presence of MR incompatible metallic clips (e.g. clipped cerebral aneurysm)
  • Body weight >159 kg (350 lbs) or untreatable claustrophobia.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

Other trials in United States

About this study

Official title: Randomized, Controlled Pilot Study of Niacinamide in Polycystic Kidney Disease

The purpose of this study is to observe the effects of niacinamide on markers of kidney injury, inflammation, kidney cyst growth and kidney function.

Read the detailed description

Polycystic Kidney Disease (PKD) is a genetic disease that affects about 1 in 500 people worldwide. It can lead to kidney failure which can lead to death. PKD causes the development of kidney cysts (fluid-filled balloons), which cause worsening kidney function. It is common for people with PKD to also have blood in the urine, kidney pain, high blood pressure, kidney stones, kidney infections, and cysts in the brain or other parts of the body.

There is currently no treatment known to stop cyst growth or a cure for the disease.

Participants in this study will be randomly assigned to one of two groups: niacinamide or placebo. Participants have an equal chance of being assigned to either of the groups. For people that qualify and decide to participate in this study, they will be asked to make five visits to the study clinic and complete two study related phone calls over the course of 12 months.

Being tested
Niacinamide, Placebo
Keywords
PKD, Kidney disease, Vitamin B3
Medical subject headings
Polycystic Kidney Diseases, Kidney Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • NiacinamideDietary supplement

    Also called Nicotinamide, Vitamin B3

  • PlaceboOther

    Placebo pill that matches niacinamide pill is size, shape and color

Study groups in NCT02558595
Study groupRoleWhat they receive
NiacinamideExperimentalParticipants will be asked to take niacinamide at a dose of 30 mg/kg/d orally.
Receives: Dietary Supplement: Niacinamide
PlaceboPlacebo comparatorParticipants will be asked to take a placebo pill at a dose of 30 mg/kg/d orally.
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in acetylated/total p53 ratio measured by ELISA in peripheral blood mononuclear cells (PBMC)

    Sirtuin 1 deacetylates p53 protein, and niacinamide inhibits sirtuin 1. So an increase in acetylated/total p53 ratio in PBMC will be used as a marker of biological efficacy.

    Measured: Change from Baseline to Month 12

Secondary outcomes (4)
  1. Change in height-adjusted total kidney volume

    Measured by MRI

    Measured: Change from Baseline to Month 12

  2. Change in score on pain questionnaire

    PKD-9 Pain Questionnaire: Range of scores from 13 (no pain or symptoms) to 70 (very severe symptoms almost every day)

    Measured: Change from Baseline to Month 12

  3. Change in urinary concentration of MCP-1

    Measured: Change from Baseline to Month 12

  4. Change in estimated GFR

    Determined from serum creatinine concentrations using CKD-Epi equation

    Measured: Change from Baseline to Month 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Sep 2015 (estimated)
  2. Study start22 Sep 2015
  3. Primary completion18 Dec 2017
  4. Study completion18 Dec 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02558595
Sponsor's protocol ID
STUDY00002827
Other IDs
R21DK104086
Status last verified
Feb 2019
First submitted
21 Sep 2015
Last updated
11 Feb 2019
Results posted
No
Data monitoring committee
Yes

Publications

  • St Pierre K, Cashmore BA, Bolignano D, Zoccali C, Ruospo M, Craig JC, Strippoli GF, Mallett AJ, Green SC, Tunnicliffe DJ. Interventions for preventing the progression of autosomal dominant polycystic kidney disease. Cochrane Database Syst Rev. 2024 Oct 2;10(10):CD010294. doi: 10.1002/14651858.CD010294.pub3.

    PubMed 39356039

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Niacinamide in people with Polycystic Kidney Disease, run by University of Kansas Medical Center 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 3 inclusion and 14 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: finished, as of the sponsor's last update on 11 Feb 2019. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change in acetylated/total p53 ratio measured by ELISA in peripheral blood mononuclear cells (PBMC) (time frame: Change from Baseline to Month 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02558595, which also lists 1 linked publication.

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 11 Feb 2019; AzTrials last refreshed its copy on 8 Nov 2026.

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