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Hypertonic SalinemiRNANCT04439994

Activation of miRNA and Proteins After Acute Experimental Pain. (miRNA: Micro RNA)

A study testing hypertonic saline, Saline injection and Blood sampling in people with Hypertonic Saline and Isotonic Saline, run by Aalborg University at 2 sites in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

In this experiment, the investigators would like to test the following: 1. Does acute pain induced by hypertonic injection cause changes in plasma miRNA and protein expression ? 2. Can these canges correlate with the development of local hyperalgesia? 3. Read more about this study

Who is it for?
Ages 18 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Hypertonic Saline, Isotonic Saline
What is being tested?
hypertonic saline, Saline injection and Blood sampling
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
2 sitesDenmark
Study dates
1 Nov 2020to 1 Jul 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy men and women in the age 18-80 years
  • Speak and understand English

Who cannot join

  • Acute and chronic pain
  • Pregnancy or breastfeeding
  • Drug addiction defined as the use of cannabis, opioids or other drugs
  • Present or previous history of neurological, dermatological, immunological, musculoskeletal, cardiac disorder or mental illnesses that may affect the results (e.g. Neuropathy, muscular pain in the upper extremities, etc.)
  • Lack of ability to cooperate
  • Current use of medications that may affect the trial, such as antipsychotics and pain killers as well as systemic or topical steroids and anti-inflammatory drugs.
Show all 9Show fewer
  • Skin diseases
  • Consumption of alcohol or painkillers 24 hours before the study days and between these
  • Participation in other trials within 1 week of study entry (4 weeks in the case of pharmaceutical trials)

Trial locations and contacts

2 sites in 1 country.

Denmark2 sites
  • Aalborg University

    Aalborg, North Denmark, 92200

  • AAlborg University

    Aalborg, North Denmark, 9220

Other trials in Denmark

About this study

Official title: Activation of Plasma miRNA and Proteins as a Result of Acute Experimental Pain

In this experiment, the investigators would like to test the following:

  1. Does acute pain induced by hypertonic injection cause changes in plasma miRNA and protein expression ?
  2. Can these canges correlate with the development of local hyperalgesia?
  3. How does the plasma miRNA expression change over a duration of 24 hours post pain induction ?
  4. Which mRNA targets are potentially affected by acute pain?
Being tested
hypertonic saline, Saline injection, Blood sampling

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • hypertonic salineOther

    The participant will be given i.d. in 0.1 mL volumes of a hypertonic saline solution

  • Saline injectionOther

    The participant will be given i.d. in 0.1 mL volumes of a saline solution

  • Blood samplingProcedure or surgery

    Whole blood samples (5 mL per each time point, a total of 20 mL per subject) will be collected

Study groups in NCT04439994
Study groupRoleWhat they receive
Hypertonic salineActive comparatorEach participant will be given i.d. in 0.1 mL volumes of a hypertonic saline solution. The subject will be blinded to the hypertonic/isotonic administration.
Receives: Other: hypertonic saline; Procedure: Blood sampling
Isotonic SalinePlacebo comparatorEach participant will be given i.d. in 0.1 mL volumes of a isotonic saline solution. The subject will be blinded to the hypertonic/isotonic administration.
Receives: Other: Saline injection; Procedure: Blood sampling

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. miRNA expression over time

    Plasma miRNA evaluation

    Measured: Before injection

  2. miRNA expression over time

    Plasma miRNA evaluation

    Measured: 30 minutes post-injection

  3. miRNA expression over time

    Plasma miRNA evaluation

    Measured: 3 hours post-injection

  4. miRNA expression over time

    Plasma miRNA evaluation

    Measured: 24 hours post-injection

  5. Protein expression over time

    Plasma protein evaluation

    Measured: Before injection

  6. Protein expression over time

    Plasma protein evaluation

    Measured: 30 minutes post-injection

  7. Protein expression over time

    Plasma protein evaluation

    Measured: 3 hours post-injection

  8. Protein expression over time

    Plasma protein evaluation

    Measured: 24 hours post-injection

Secondary outcomes (1)
  1. Assessment of pain: visual analog scale

    Pain following capsaicin injection will be monitored for 20 minutes using a computerized 100 mm visual analog scale (eVAS software Aalborg University, Denmark), installed on a tablet.

    Measured: 20 minutes

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Jun 2020
  2. Study start1 Nov 2020
  3. Primary completion1 Jul 2021
  4. Study completion1 Jul 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Model description
two groups of subjects: one group will receive hypertonic injection (0.1 ml) and the other group will receive isotonic saline injection (0.1 ml)
Masking
Single blind
Who is masked
Participant
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04439994
Sponsor's protocol ID
N-20200015
Acronym
miRNA
Status last verified
Oct 2023
First submitted
16 Jun 2020
Last updated
3 Oct 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Giordano R, Gerra MC, Okutani H, Lo Vecchio S, Stensballe A, Petersen KK, Arendt-Nielsen L. The temporal expression of circulating microRNAs after acute experimental pain in humans. Eur J Pain. 2023 Mar;27(3):366-377. doi: 10.1002/ejp.2062. Epub 2022 Dec 9.

    PubMed 36453122

Questions about this trial

What is this clinical trial studying?

A study testing hypertonic saline, Saline injection and Blood sampling in people with Hypertonic Saline and Isotonic Saline, run by Aalborg University at 2 sites in Denmark.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 3 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

miRNA expression over time (time frame: Before injection). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04439994, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Oct 2023.

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