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Effects of Psyllium on Niacin Tolerability

A Prospective Randomized, Open-Label, Crossover Study on the Effects of Psyllium on Niacin Tolerability

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03370848
Enrollment
26
Registered
2017-12-12
Start date
2009-03-31
Completion date
2011-07-31
Last updated
2017-12-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dyslipidemias, Flushing, Hyperlipidemias

Keywords

Niacin, Psyllium, Dietary fiber

Brief summary

The purpose of this study is to determine whether psyllium is effective in reducing flushing due to niacin and also to measure the effect of niacin on cholesterol levels.

Interventions

DIETARY_SUPPLEMENTPsyllium

Aspirin 325 mg tablet and two 1.7gm psyllium wafers (3.4gm total) 30 minutes prior to niacin ER

DRUGAspirin

Aspirin 325 mg tablet 30 minutes prior to niacin ER

Sponsors

VA Greater Los Angeles Healthcare System
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
SUPPORTIVE_CARE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Patients who are starting ER niacin for clinical indication by a healthcare provider * No prior use of psyllium for the past 2 months * No prior use of niacin for the past 3 months * Ability to give informed consent * Must be reachable by telephone

Exclusion criteria

* Known contraindications to ER niacin, aspirin or psyllium (including: presence of nausea, vomiting, abdominal pain, intestinal obstruction, or fecal impaction; known hypersensitivity to ER niacin, aspirin or psyllium; severe hepatic dysfunction, transaminitis; history of gastrointestinal bleed attributable to aspirin induced gastritis) * Patient who are unable to perform assessment of flushing using the standardized scales or questionnaires * Patients who are pregnant

Design outcomes

Primary

MeasureTime frame
Global Flushing Severity Scoreup to 6 weeks

Secondary

MeasureTime frame
HDLBaseline, & end of week 6
LDLBaseline, & end of week 6

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026