Pharmacokinetic Study of Nanoencapsulated Gel of Lidocaine, Prilocaine and Combination of Lidocaine and Prilocaine

February 15, 2018 updated by: Gilberto De Nucci, Galeno Desenvolvimento de Pesquisas Clínicas

A Cross-over Study of Pharmacokinetic Interaction Comparing Nanoencapsulated Gel of Prilocaine (2.5%), Lidocaine (2.5%) and Association of Prilocaine + Lidocaine 2.5% (Nanorap®) Topically in Healthy Volunteers.

This trial evaluated the pharmacokinetic interaction between fixed doses of lidocaine (2.5%), prilocaine (2.5%) or the association of both (Nanorap®) in healthy volunteers. The drug safety and tolerability was also evaluated.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study was performed as a monocentric, open, randomized, double-blind, with 3 treatment regimen (lidocaine, prilocaine, or Nanorap®) in 3 periods design. Volunteers were submitted to clinical and laboratory examination before enrollment. Treatments were carried out on 3 different days with a washout period of 7 days between each dose.

After a fasting period (8 h), volunteers received topically 2g of the formulation in a delimited area of 16 cm2 in the volar surface of the forearm. The product was applied to the left arm and venous blood was collected from the right arm. The remaining product was removed with a cotton swab 10 minutes after application. Blood samples (3.5 mL) were collected into heparinized tubes before (0:00) and at 1.0, 2.0, 3.0, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 12.0, 14.0, 16.0 and 24.0 h after the hydrogel application.

Blood samples were centrifuged at 2000 g (4 ⁰C) for 10 minutes and the obtained plasma samples were stored at -20 °C until analysis.

Following dosing, volunteers were monitored for 36 h in a clinical setting safety and tolerability (signs, symptoms, adverse events, and laboratory parameters). The vital signs (blood pressure and pulse rate) were evaluated. ECGs were obtained before (30 min) and at drug Cmax (6 h) for each product application. QT interval corrected by heart rate (QTc) data were obtained from a Bionet Cardiocare 2000 and BMS-Plus software program, using Bazett's formula: QTc = QT/(sqrt RR Interval).

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
48

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • SP
      • Campinas, SP, Brazil
        • Galeno Desenvolvimento de Pesquisas Clinicas Ltda. - ME

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

15 years to 49 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy volunteers over 18 years old
  • Body mass index (BMI) ≥ 19.0 kg/m² and ≤ 28.75 kg/m²
  • No evidence of significant diseases, that, at the investigator's discretion, may affect the participation in the clinical trial, in accordance with the protocol requirements
  • Ability to understand the nature and the objective of the clinical trial,including the risks and possible side effects; intention to cooperate with the investigator and act in accordance with the protocol requirements, as confirmed by the informed consent form signature.

Exclusion Criteria:

  • Subjects with known hypersensitivity to the compounds of the investigational products, severe allergies or multiple drug allergies
  • Existing diseases or pathological findings, which might interfere with the safety or tolerability, and/or pharmacokinetics of the drug
  • Screening laboratory tests presenting deviations deemed as clinically significant, which, due to possible risks, prevents the participation in clinical trial.
  • Use of maintenance therapy with any drug
  • Drug or alcohol dependence
  • Volunteers who ingests more than 5 cups of coffee or tea per day and/or smoke
  • Volunteers with unusual eating habits, e.g, vegetarian
  • Treatment, within 3 months prior to the initiation of the clinical trial treatment, with any drug known to have a well-established toxic potential to major organs.
  • Use of regular medication within 2 weeks before the start of treatment and the date of evaluation, or made use of any medication within one week, except for oral contraceptives or cases where, based on the half-life of the drug and/or active metabolites, complete elimination can be assumed
  • Treatment within 6 months prior to the study with any known drug of have a well-defined toxic potential in large organs
  • Hospitalization for any reason up to 8 weeks before the start of the treatment of this study
  • Participation in a clinical trial during the last 6 months
  • Blood donation or other blood loss of more than 450 mL within the last 3 months
  • Pregnant, delivery or abortion in the 12 weeks prior to the planned hospitalization
  • The volunteer who has any condition that prevents him from participating in the study by judgment of the investigator

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Lidocaine + prilocaine
Single topical dose of a combination of nanoencapsulated lidocaine (2.5%) and prilocaine (2.5%) formulation in a delimited area of 16 cm2 in the volar surface of the forearm.
Drug: Lidocaine + Prilocaine
Single topical dose of 2g lidocaine + prilocaine 2.5 % formulation.
Other Names:
  • Nanorap®
Active Comparator: Lidocaine
Single topical dose of lidocaine nanoencapsulated gel (2.5 %) formulation in a delimited area of 16 cm2 in the volar surface of the forearm.
Drug: Lidocaine
Single topical dose of 2g lidocaine 2.5 % formulation.
Active Comparator: Prilocaine
Single topical dose of prilocaine (2.5 %) nanoencapsulated gel formulation in a delimited area of 16 cm2 in the volar surface of the forearm.
Drug: Prilocaine
Single topical dose of 2g prilocaine 2.5 % formulation.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Measurement of lidocaine and prilocaine plasma levels
Time Frame: 0-24 h
Blood sampling for the determination of plasma levels of lidocaine and prilocaine in participants of each treatment group.
0-24 h
Maximum Plasma Concentration (Cmax) of lidocaine and prilocaine
Time Frame: 0-24 h
Determination of Cmax for lidocaine and prilocaine based on plasma concentrations of samples obtained.
0-24 h
Area Under the Curve (AUC) of lidocaine and prilocaine
Time Frame: 0-24 h
Determination of AUC for lidocaine and prilocaine based on plasma concentrations of samples obtained.
0-24 h

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of adverse events per participant
Time Frame: Up to 36 h after treatment
Determination of the number of adverse events, in each treatment group, including clinically relevant alterations of vital signs and laboratory tests results.
Up to 36 h after treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Galeno Desenvolvimento de Pesquisas Clínicas

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Biolab Sanus Farmaceutica

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 28, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 19, 2016

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 6, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 10, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 15, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 22, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 22, 2018

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 15, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GDN 002/16

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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