← Back to Search

Anticholinergic

Pharmacokinetics Study of Atropine Oral Gel

Phase < 1
Waitlist Available
Led By Venkata K. Yellepeddi, PhD
Research Sponsored by University of Utah
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Be between 18 and 65 years old
Must not have
Acute hepatitis in the prior 6 months, a prior history of cirrhosis, acute hepatic failure, or acute decompensation of chronic hepatic failure
Patients with a history of chronic lung disease or chronic obstructive pulmonary disease (COPD)
Timeline
Screening 3 weeks
Treatment Varies
Follow Up the vd will be evaluated at timepoints 0, 5, 10, 15, 30, 60 minutes, and 2, 4, 6, 8, and 24 hours after administration of gel to the oral cavity.
Awards & highlights
No Placebo-Only Group

Summary

This trial uses a gel with a small amount of atropine applied inside the mouth to study how healthy adults process the drug. Atropine blocks certain nerve signals, and researchers will measure its absorption into the blood. Atropine is a clinically relevant drug that has been studied for its effects on heart rate, salivary flow, and other physiological functions.

Who is the study for?
This trial is for healthy adults who can consent in English and have no oral deformities, history of severe allergies to atropine or similar compounds, recent investigational drug use, immune suppression, tracheostomy, pregnancy/nursing status, severe kidney issues, liver diseases, gastrointestinal obstructions, active infections or treatments for them. Also excluded are those with chronic lung disease/COPD, on certain medications like MAO inhibitors or anticholinergics; with urinary retention; acute glaucoma; heart conditions; or recent cancer treatments.
What is being tested?
The study tests how a single dose of Atropine sulfate gel (0.01%) behaves in the body after being applied inside the mouth of healthy adults. It aims to understand the absorption and clearance process of this medication when used as an oral gel.
What are the potential side effects?
Potential side effects may include dry mouth due to reduced saliva production since atropine blocks certain nerve signals responsible for salivation. Other possible reactions could be related to its anticholinergic properties such as blurred vision if it affects the eyes.

Eligibility Criteria

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
Select...
I haven't had acute hepatitis, cirrhosis, or severe liver issues in the last 6 months.
Select...
I have a history of chronic lung disease or COPD.
Select...
I have noticeable changes in my mouth's shape or structure.
Select...
I have a partial blockage in my stomach or similar digestive issues.
Select...
I am currently taking anticholinergic medications.
Select...
I am currently on immunosuppressive therapy.
Select...
I have a heart condition like heart failure or arrhythmia.
Select...
I am currently receiving treatment for an infection.
Select...
I have had radiotherapy for head or neck cancer.
Select...
I am currently pregnant or nursing.
Select...
I am currently taking medication for depression or Parkinson's disease.
Select...
My kidney function is severely impaired.
Select...
I have been diagnosed with difficulty emptying my bladder.
Select...
I have had blockages or stones in my salivary glands before.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~the cmax will be evaluated at timepoints 0, 5, 10, 15, 30, 60 minutes, and 2, 4, 6, 8, and 24 hours after administration of gel to the oral cavity.
This trial's timeline: 3 weeks for screening, Varies for treatment, and the cmax will be evaluated at timepoints 0, 5, 10, 15, 30, 60 minutes, and 2, 4, 6, 8, and 24 hours after administration of gel to the oral cavity. for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
Evaluate pharmacokinetic parameter area under the curve (AUC) in healthy adults to see if atropine will reach detectable concentrations in plasma following topical oral administration in gel formulation.
Evaluate pharmacokinetic parameter clearance (CL) in healthy adults to see if atropine will reach detectable concentrations in plasma following topical oral administration in gel formulation.
Evaluate pharmacokinetic parameter time to reach maximum plasma concentration (Cmax) in healthy adults to see if atropine will reach detectable concentrations in plasma following topical oral administration in gel formulation.
+2 more

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

1Treatment groups
Experimental Treatment
Group I: 0.1 mg of atropineExperimental Treatment1 Intervention
1 gram of gel by topical application in the oral cavity once.

Research Highlights

Information in this section is not a recommendation. We encourage patients to speak with their healthcare team when evaluating any treatment decision.
Mechanism Of Action
Side Effect Profile
Prior Approvals
Other Research
Anticholinergic agents, such as Atropine Gel, work by blocking acetylcholine receptors in the salivary glands, thereby reducing saliva production. This mechanism is particularly important for drooling patients as it helps manage excessive saliva, which can cause social embarrassment, skin irritation, and increase the risk of aspiration. Effective management of saliva output significantly improves the quality of life for these patients.
Treatment for sialorrhea (excessive saliva) in people with motor neuron disease/amyotrophic lateral sclerosis.Screening for Eating Disorders in Adolescents and Adults: Evidence Report and Systematic Review for the US Preventive Services Task Force.Treatment Strategies for Clozapine-Induced Sialorrhea: A Systematic Review and Meta-analysis.

Find a Location

Who is running the clinical trial?

University of UtahLead Sponsor
1,137 Previous Clinical Trials
1,791,540 Total Patients Enrolled
Venkata K. Yellepeddi, PhDPrincipal InvestigatorUniversity of Utah

Media Library

Atropine sulfate gel (Anticholinergic) Clinical Trial Eligibility Overview. Trial Name: NCT05164367 — Phase < 1
Drooling Research Study Groups: 0.1 mg of atropine
Drooling Clinical Trial 2023: Atropine sulfate gel Highlights & Side Effects. Trial Name: NCT05164367 — Phase < 1
Atropine sulfate gel (Anticholinergic) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05164367 — Phase < 1
~3 spots leftby Nov 2025