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A Preference Study Comparing Kristalose® and Liquid Lactulose

A Preference Study Comparing Kristalose® and Liquid Lactulose in the Treatment of Constipation

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00712543
Enrollment
50
Registered
2008-07-10
Start date
2009-06-30
Completion date
2009-09-30
Last updated
2011-09-27

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

Conditions

Constipation

Keywords

constipation, laxative, lactulose, Kristalose®

Brief summary

This study will evaluate whether patients have an overall preference for Kristalose® or liquid lactulose based on taste, consistency, and portability.

Detailed description

This study will evaluate whether patients have an overall preference for Kristalose® or liquid lactulose based on taste, consistency, and portability.

Interventions

DRUGlactulose (Kristalose®)

Crystals to be dissolved in water and taken as prescribed.

DRUGliquid lactulose

Liquid to be taken as prescribed.

Sponsors

Cumberland Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients with recently diagnosed chronic constipation requiring treatment.

Exclusion criteria

* Patients with galactosemia (galactose-sensitive diet). * Patients less than 18 years of age. * Patients currently on lactulose therapy. * Inability to understand the requirements of the study or be unwilling to provide written informed consent (as evidenced by signature on an informed consent document approved by an Institutional Review Board \[IRB\]) and agree to abide by the study restrictions.

Design outcomes

Primary

MeasureTime frame
Patient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.14 days

Countries

United States

Participant flow

Recruitment details

Participants recruited from the outpaient clinics of Wake Research Associates (Raleigh, NC); Rapid Medical Research (Cleveland, OH) and Arya Gastroenterology (Brooklyn, NY) between June 2009 and August 2009.

Participants by arm

ArmCount
Powder, Then Liquid Lactulose
Kristalose (powder lactulose), as perscribed, for the first 7 days, then liquid lactulose (as perscribed) for the second 7 days.
23
Liquid, Then Powder Lactulose
Liquid lactulose, as perscribed, for the first 7 days, then Kristalose (powder lactulose), as perscribed, for the second 7 days.
27
Total50

Withdrawals & dropouts

PeriodReasonFG000FG001
Day 8-14Lost to Follow-up02

Baseline characteristics

CharacteristicLiquid, Then Powder LactuloseTotalPowder, Then Liquid Lactulose
Age, Customized52.37 years
STANDARD_DEVIATION 15.71
48.61 years
STANDARD_DEVIATION 14.95
44.02 years
STANDARD_DEVIATION 13.37
Race/Ethnicity, Customized
American Indian or Alaska Native
0 participants0 participants0 participants
Race/Ethnicity, Customized
Asian
1 participants1 participants0 participants
Race/Ethnicity, Customized
Black or African American
11 participants26 participants15 participants
Race/Ethnicity, Customized
Hispanic
5 participants9 participants4 participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 participants0 participants0 participants
Race/Ethnicity, Customized
Other
0 participants1 participants1 participants
Race/Ethnicity, Customized
White
10 participants13 participants3 participants
Sex: Female, Male
Female
19 Participants37 Participants18 Participants
Sex: Female, Male
Male
8 Participants13 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
13 / 5010 / 50
serious
Total, serious adverse events
0 / 500 / 50

Outcome results

Primary

Patient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.

Time frame: 14 days

ArmMeasureGroupValue (NUMBER)
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose overall12 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose in terms of consistency7 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose in terms of taste7 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose in terms of consistency11 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose overall7 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference in terms of consistency5 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose in terms of taste12 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose in terms of portability1 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference overall4 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose in terms of portability17 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference in terms of portability5 participants
Powder, Then Liquid LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference in terms of taste4 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference in terms of portability5 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose overall6 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose overall11 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference overall8 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose in terms of taste9 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose in terms of taste11 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference in terms of taste5 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose in terms of consistency7 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose in terms of consistency11 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.No preference in terms of consistency7 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred liquid lactulose in terms of portability4 participants
Liquid, Then Powder LactulosePatient Preference in Terms of Overall Preference and Preference of Taste, Consistency, and Portability.Preferred powder lactulose in terms of portability16 participants

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