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Open-label Comparison of 24hr Gastric pH on Days 1, 2, 7 With Once-daily Administration of Lavoltidine 40 mg.

An Open-Label Study of the Development of Pharmacodynamic Tolerance to 7-days Administration of Lavoltidine 40mg

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00551473
Enrollment
18
Registered
2007-10-31
Start date
2007-05-31
Completion date
Unknown
Last updated
2012-06-04

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

Conditions

Gastroesophageal Reflux Disease, Reflux, Gastroesophageal

Keywords

pharmacodynamics,, tolerance, H2 antagonist,, AH23844,, lavoltidine,, gastroesophageal reflux disease (GERD), pharmacokinetics,

Brief summary

Current treatment for gastroesophageal reflux disease(GERD)confirms an unmet need in patients, based on slow onset of action and an inability to provide 24-hour gastric acid suppression. Clinical data on lavoltidine demonstrates a rapid onset of action, high potency, and prolonged duration of effect after single dose. Since tolerance to the class of compounds to which lavoltidine belongs may be dose dependent, the current study is designed to determine if 40mg lavoltdine given for 7days develops tolerance.

Interventions

DRUGLavoltidine

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

* Healthy male, from 18-55 years * Have BMI from 19-30 kg/m2 * do not present with abnormal clinical lab findings * are able to tolerate a nasogastric pH electrode.

Exclusion criteria

* Helicobacter-positive on a C13 urea breath test * have a baseline median 24-hour gastric pH\>3

Design outcomes

Primary

MeasureTime frame
To determine the degree of pharmacodynamic tolerance following seven days administration of lavoltidine 40mg on gastric pH as assessed by percentage of 24hrs pH>4.seven days

Secondary

MeasureTime frame
To determine whether or not significant pharmacodynamic tolerance occurs as early as the second dose of 40mg lavoltidine. Safety and tolerance of seven days administration of lavoltidine 40 mg, in healthy male volunteers.seven days

Countries

Australia

Outcome results

None listed

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