Clinical Trial to Assess the Effectiveness of Applying Dry Local Heat and/ or High Tourniquet Pressure for Venipuncture. (ECYPVEN-H/17)

October 30, 2019 updated by: Universidad Complutense de Madrid

Cross-over Clinical Trial to Assess the Effectiveness of Applying Dry Local Heat and/ or High Tourniquet Pressure With Current Clinical Practice for Venipuncture, and Blinded for Evaluating Their Impact on Hemolysis

Low level intervention health products clinical trial, fourth phase, non-commercial research. Dissertation of COMPLUTENSE UNIVERSITY of Madrid.

Principal Investigator of this clinical trial: Ms. LETICIA CARMEN SIMÓN LÓPEZ Collaborative investigators: Dr. DOLORES OCHOA-MAZARRO (principal investigator of bioequivalence clinical trial), and Sir. SERGIO LUQUERO-BUENO (collaborative researcher)

The setting is Clinical trials Unit of Clinical Pharmacology Department. LA PRINCESA HOSPITAL of Madrid. Research Ethical Committee of LA PRINCESA HOSPITAL of Madrid. Any person will monitor this clinical trial because the sponsor and principal researcher are the same person. Nevertheless, an adherence to this protocol will ensure by principal researcher and co-researchers.

The three interventions are:

  1. To Apply local dry heat.
  2. To apply high tourniquet pressure.
  3. To apply both of them. (Dry heat and high pressure) The common comparator: Current Clinical practice for peripheral venous catheterization.

The main hypothesis: The number of attempts of success venipuncture at first time are influenced by any of the interventions applied before.

The main goal: To identify the most effective intervention of applying dry local heat and/or high tourniquet pressure in relation of number success venipuncture attempts, compared to current clinical practice.

Design: An experimental, randomized study which is controlled with current clinical practice to insert a peripheral vein catheter. It is an incomplete cross-over clinical trial, with three arms which are involved interventions and a common comparator.

Population: Adult healthy subjects. Sample size: It is required to enroll 54 subjects with a 95% of level of confidence and 80% level of power.

Main variable: Succeed peripheral vein catheter insertion at first attempt.

Effectiveness assessment: The optimal effectiveness is considered when vein cannulation success at first attempt exceeds 95% applying any of the interventions.

Planned date to address: It is planned to carry out around June and/or July of 2017 for the main variable.

Study Overview

Detailed Description

The study is considered a low level intervention clinical trial to evaluate the use and safety of a sanitary product marketed and accredited for a different aim, but according to their rules of using.

It is experimental, randomized and controlled study with the usual technique of inserting a venipuncture catheter until now. Incomplete clinical trial, blind to third parties, in healthy volunteers, which consists of three arms, in which they are intervened and the comparator is applied. The volunteers comes from a bioequivalence clinical trial for testing a new drug, and a venous catheter is required in two period between a wash-out period of one week, approximately.

For each volunteer one of intervention is applied in one period, and in other period the comparator is applied. Thus, one intervention and the sequence of one intervention application and comparator is assigned by randomization using sealed envelopes. Randomization is only performed in first period, in second period one intervention or comparator assigned in applied. Thus, each one volunteer is her/his own comparator

. Before assigned intervention or comparator is applied, a Venous International Assessment is carried out using Venous International Assessment (VIA) validated scale by nurse perception and palpation. After assigned intervention, another VIA is performed. Then, when peripheral venous catheterization is achieved, a blood sample is withdrawn in order to examine hemolysis. Afterwards, pain is registered by Visual Analogue Scale (VAS) validated scale within no more than two hours from vein catheterization, and skin perception is evaluated by Fitzpatrick's scale (only in first period) in order to analyze a possible relationship with adverse events on skin. Subjects are followed-up for 72h in order to monitor adverse events if applicable.

According to hemolysis, an ethylene diamine tetra acetate (EDTA) blood sample is processing at 3400 revolutions per minute at 4 Celsius grades for 10 minutes, and plasma samples are frosted for 24-48h. Afterwards, they are defrosted, and analyzed by absorbance using NANODROP SPECTROPHOTOMETER. The analysis by spectrophotometer is blinded of intervention or comparator used to withdrawn.

Study Type

Interventional

Enrollment (Actual)

62

Phase

  • Not Applicable

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

      • Madrid, Spain, 28006
        • Leticia Carmen Simón López

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

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Signed the informed consent form for bioequivalence study
  • Signed the informed consent form for this clinical trial
  • Fluid intake of participants was limited to a volume equal to or less than 500 ml
  • Participants fasted 6-8 hours before venous cannulation
  • Body mass index (BMI) between 18.5-29.9
  • Vein perception by Venous International Assessment (VIA) scale between 5 to 2 grade.

Exclusion Criteria:

  • Grade one in VIA scale
  • Smokers
  • BMI lower than 18.5 or equivalent or higher than 30
  • Subjects who had any disease,
  • Blood test, urinalysis, physical examination or electrocardiogram showing disorders with clinical relevance
  • Subjects receiving treatment for anything apart from contraceptives.
  • Gluten, lactose intolerance, vegetarian or vegan subjects for bioequivalence subjects.

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Current clinical practice-Dry heat

The standardized and approved Clinical and Laboratory Standards Institute (CLSI) GP41-A6 venipuncture guide has been established for clinical current practice so far. According to vein cannulation procedure CLSI GP41-A6, an elastic compressor will be applied (Synthetic rubber-latex compressor tape, UNIDIX®, Madrid, Spain) provided by the hospital.

1 period (current clinical practice) and 2 period (dry heat) or 1 period (dry heat) and 2 period (current clinical practice).

The application is made with two sacks of carob seeds during 7 minutes. The sacks are placed on antebrachial anatomical zone, together, and previously heated in the microwave for 0.30 seconds at 850 W of power.
Active Comparator: Current clinical practice- Hihg pressure

The standardized and approved CLSI GP41-A6 venipuncture guide has been established for clinical current practice so far. According to vein cannulation procedure CLSI GP41-A6, an elastic compressor will be applied (Synthetic rubber-latex compressor tape, UNIDIX®, Madrid, Spain) provided by the hospital.

1 period (current clinical practice) and 2 period (high pressure) or 1 period (high pressure) and 2 period (current clinical practice).

It will be carried out with the use of the manual aneroid sphygmomanometer fixed at 100 millimeters of mercury. Brand (QUIRUMED) with European Conformity (CE) marking 0197. A pressure lower than the systolic blood pressure, and in each subject will be monitored the radial pulse.
Active Comparator: Current clinical practice-Combination

The standardized and approved CLSI GP41-A6 venipuncture guide has been established for clinical current practice so far. According to vein cannulation procedure CLSI GP41-A6, an elastic compressor will be applied (Synthetic rubber-latex compressor tape, UNIDIX®, Madrid, Spain) provided by the hospital.

1 period (current clinical practice) and 2 period (combination of dry heat and high pressure) or 1 period (combination of dry heat and high pressure) and 2 period (current clinical practice).

The application is made with two sacks of carob seeds during 7 minutes. The sacks may be placed on antebrachial anatomical zone, together, and previously heated in the microwave for 0.30 seconds at 850 W of power; according to instructions for use.

After 7 minutes, the pressure is applied with the use of the manual aneroid sphygmomanometer fixed at 100 millimeters of mercury. Brand QUIRUMED with CE Marking 0197. A pressure lower than the systolic blood pressure, and in each subject will be monitored the radial pulse.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Successful Venous Catheterization at the First Attempt
Time Frame: From 1-5 minutes
Number of participants with successful venous catheterization at the first attempt (effectiveness)
From 1-5 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of the Grade of Venous International Assessment (VIA) Scale After Application of Intervention
Time Frame: up to ten minutes after application of intervention

Vein perception in VIA scale was considered as the self-reported visual observation or palpation of a venous pathway.

Subjects were graded using the current clinical practice vein stagnation with an elastic compressor application (Unidix®).

Five grades considering the numbers of points of optimal puncture visible and tangible, in one of the dorsal veins of the hand, forearm cephalic and/or basilic.

Grade I: At least six. Grade II: At least four. Grade III: At least three. Grade IV: At least one. Grade V: None.

Therefore, the best grade is I, and the worst grade is V. Higher scores mean a worse outcome.

up to ten minutes after application of intervention
Number of the Grade in Visual Analogue Scale (VAS) for Pain After Intervention
Time Frame: up to 2 hours after application of intervention

Visual Analogue Scale (VAS) in pain was measured by integer number. Pain was self-expressed by participants, in a range from 0 to 10.

10: was considered the worst pain experienced 0: no pain perceived.

The entire range was 0, 1, 2, 3, 4, 5 , 6, 7, 8, 9, 10.

Therefore, higher scores mean a worse outcome.

up to 2 hours after application of intervention
Number of Participants in Each Type of Skin Standardized According to Fitzpatrick Scale
Time Frame: up to 2 hours after application of intervention

Number of participants in each type of skin standardized according to Fitzpatrick scale. Fitzpatrick scale is the UNABBREVIATED scale that indicates different types of skin described as "phototypes". The individuals were graded clinically by sel-expressed by participants in the area of the forearm not exposed to the sun.

In a range of six phototypes, where phototype I corresponds with the minimum and phototype VI the maximum.

Phototype I: Ivory white, burns easily, never tans. Phototype II: White, burns easily, tans minimally with difficulty. Phototype III: White, burns moderately, tans moderately and uniformly Phototype IV: Beige-olive, lightly tanned, burns minimally, tans moderately and easily.

Phototype V: Rarely burns, tans profusely. Phototype VI: Dark brown or black, never burns, tans profusely.

Phototype I was considered more risky outcome for expected adverse events in skin. None was considered better or worse outcome.

up to 2 hours after application of intervention
Level of Hemolysis in Absorbance Units
Time Frame: up to 9 days after first intervention completion

Detection level of absorbance values of hemolysis in plasma samples. The units of absorbance are dimensionless. The hemolysis in plasma is analyzed by spectrophotometry method, using a NanoDrop® 2000 Spectrophotometer device (Thermo Fisher Scientific Inc., Wilmington, United States of America).

The following equation was used to correct lipemia: (A414-A385) +0.16xA385. Additionally, a baseline correction factor at 750 nanometer wavelength was applied. Therefore, absorbance were measured at 414 nanometer, 385 nanometer and 750 nanometer.

Higher values represent a worse outcome: higher value mean higher hemolysis in a blood sample.

Therefore, lower values, near to zero are better outcomes that mean low hemolysis in blood sample.

up to 9 days after first intervention completion
Number of Participants With Adverse Events
Time Frame: During the study completion,. an average of 30 days.
Number of adverse events by visual inspection.
During the study completion,. an average of 30 days.

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Leticia Carmen Simón López, RN, Universidad Complutense de Madrid

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

July 9, 2017

Primary Completion (Actual)

July 23, 2017

Study Completion (Actual)

April 3, 2018

Study Registration Dates

First Submitted

July 12, 2019

First Submitted That Met QC Criteria

July 18, 2019

First Posted (Actual)

July 19, 2019

Study Record Updates

Last Update Posted (Actual)

November 13, 2019

Last Update Submitted That Met QC Criteria

October 30, 2019

Last Verified

July 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 3113

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

The plan is all individual participant data (IPD) that underlie results in a publication. Also, if any volunteer ask for her/his results specifically, a report will be provided.

IPD Sharing Time Frame

A Clinical STudy Report is already available for Ethics Committee of La PRINCESA Hospital. Moreover, an original article of the results of the study is being prepared.

IPD Sharing Access Criteria

Available as majority as possible.

IPD Sharing Supporting Information Type

  • Study Protocol
  • Clinical Study Report (CSR)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

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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