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Essential HypertensionRECTIFHYNCT04303689

Repurposing Colchicine to Improve Vascular Function in Hypertension

A study testing Colchicine Tablets in people with Essential Hypertension, run by University of Copenhagen at 1 site 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 project the potential beneficial effect of the drug colchicine on vascular reactivity and blood pressure will be assessed. Colchicine is a commonly used anti-inflammatory medication approved for the treatment of gout, Familial Mediterranean Fever and pericarditis in Denmark. Read more about this study

Who is it for?
Ages 40 to 65 years, men only
Conditions the study is for
Essential Hypertension
What is being tested?
Colchicine Tablets
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
31 participants
Where
1 siteDenmark
Study dates
1 Aug 2020to 28 Feb 2023
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 40 to 65 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosed with essential hypertension
  • BMI<30
  • blood pressure (sys/dia) ≥120 mmhg and/or ≥80 mmhg while on hypertensive medication OR
  • blood pressure (sys/dia) ≥130 mmhg and/or ≥85 mmhg without hypertensive medication

Who cannot join

  • smoking
  • excessive alcohol use
  • chronic diseases (beside essential hypertension)

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Department of Nutrition, Exercise and Sports, UCopenhagen

    Copenhagen, 2200

Other trials in Denmark

About this study

In this project the potential beneficial effect of the drug colchicine on vascular reactivity and blood pressure will be assessed. Colchicine is a commonly used anti-inflammatory medication approved for the treatment of gout, Familial Mediterranean Fever and pericarditis in Denmark. The current project idea is based on accumulating evidence in the literature for a beneficial role of colchicine treatment in the prevention of cardiovascular disease in parallel with novel mechanistic insight from our own research. Recently, colchicine was associated with a lower risk of cardiovascular disease, including reduced myocardial infarctions, strokes and acute coronary syndrome . However, none of these trials have investigated the effect of colchicine on arterial tone or stiffness, changes to which may underlie the reduced risk of cardiovascular disease associated with colchicine. In support of the hypothesis that colchicine will improve vascular reactivity, a study in 1985 by Lagrue et al. found that daily, low-dose colchicine improved arterial stiffness in a small cohort of hypertensive patients. More recently, colchicine was shown to improve arterial stiffness in patients with Familial Mediterranean fever supporting a cardiovascular protective role of colchicine. Finally, colchicine is also proposed to have anti-inflammatory effects in the vascular system.

Read the detailed description

In this project w the potential beneficial effect of the drug colchicine on vascular reactivity and blood pressure is evaluated. Colchicine is a commonly used anti-inflammatory medication approved for the treatment of gout, Familial Mediterranean Fever and pericarditis in Denmark. The current project idea is based on accumulating evidence in the literature for a beneficial role of colchicine treatment in the prevention of cardiovascular disease in parallel with novel mechanistic insight from research of the investigators. Recently, colchicine was associated with a lower risk of cardiovascular disease, including reduced myocardial infarctions, strokes and acute coronary syndrome. However, none of these trials have investigated the effect of colchicine on arterial tone or stiffness, changes to which may underlie the reduced risk of cardiovascular disease associated with colchicine. In support of thehypothesis that colchicine will improve vascular reactivity, a study in 1985 by Lagrue et al. found that daily, low-dose colchicine improved arterial stiffness in a small cohort of hypertensive patients. More recently, colchicine was shown to improve arterial stiffness in patients with Familial Mediterranean fever supporting a cardiovascular protective role of colchicine. Finally, colchicine is also proposed to have anti-inflammatory effects in the vascular system.

Being tested
Colchicine Tablets, Placebo
Keywords
essential hypertension, colchicine, vascular function, vascular compliance, blood pressure
Medical subject headings
Essential Hypertension

What participants receive

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

  • Colchicine TabletsDrug

    Also called Colchicine

    patients with essential hypertension are randomized to receive either 3 weeks of colchicine

  • PlaceboDrug

    patients with essential hypertension are randomized to receive either 3 weeks of placebo-treatment

Study groups in NCT04303689
Study groupRoleWhat they receive
ColchicineExperimental3 weeks of treatment with colchicine
Receives: Drug: Colchicine Tablets
PlaceboPlacebo comparator3 weeks of placebo-treatment
Receives: Drug: Placebo

What is being measured

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

  1. Changes in vascular function with treatment measured as flowchanges with ultrasound doppler in response to infusions of isoprenaline

    Infusions of isoprenalin in the brachial artery, measurement of blood flow with ultrasound doppler and intraarterial blood pressure with an intraarterial transducer for the calculation of leg vascular conductance

    Measured: Change in vascular conductance in response to infusions is assessed after acute treatment and before and within 72 hours after the 3 weeks of colchicine or placebo treatment

  2. Changes in vascular function with training measured as flowchanges with ultrasound doppler divided by changes in blood pressure measured with intraarterial canula, in response to infusions of acetylcholine

    Infusions of acetylcholine in the brachial artery, measurement of blood flow with ultrasound doppler and intraarterial blood pressure with an intraarterial transducer for the calculation of leg vascular conductance

    Measured: Change in vascular conductance in response to infusions is assessed after acute treatment before and within 72 hours after the 3 weeks of colchicine or placebo treatment

  3. Changes in vascular function with training measured as flowchanges with ultrasound doppler divided by changes in blood pressure measured with intraarterial canula, in response to infusions of sodium nitroprusside

    Infusions of sodium nitroprusside in the brachial artery, measurement of blood flow with ultrasound doppler and intraarterial blood pressure with an intraarterial transducer for the calculation of leg vascular conductance

    Measured: Change in vascular conductance in response to infusions is assessed after acute treatment and before and within 72 hours after the 3 weeks of colchicine or placebo treatment

Secondary outcomes (2)
  1. Blood pressure

    Blood pressure measured at home with an automated blood pressure device

    Measured: Measurements are made before and after 3 weeks of treatment with colchicine or placebo.

  2. Vascular compliance

    measured by intraarterial blood pressure and changes in arterial diameter by ultrasound doppler

    Measured: Measurements are made before and after 3 weeks of treatment with colchicine or placebo.

Timeline

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

  1. First posted11 Mar 2020
  2. Study start1 Aug 2020
  3. Primary completion1 Dec 2022
  4. Study completion28 Feb 2023

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
Single blinded randomized placebo-controlled intervention
Masking
Single blind
Who is masked
Participant
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04303689
Sponsor's protocol ID
Colchicine study
Acronym
RECTIFHY
Status last verified
May 2023
First submitted
23 Jan 2020
Last updated
10 May 2023
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ehlers TS, van der Horst J, Moller S, Piil PK, Gliemann L, Aalkjaer C, Jepps TA, Hellsten Y. Colchicine enhances beta adrenoceptor-mediated vasodilation in men with essential hypertension. Br J Clin Pharmacol. 2023 Jul;89(7):2179-2189. doi: 10.1111/bcp.15688. Epub 2023 Feb 24.

    PubMed 36764326

Questions about this trial

What is this clinical trial studying?

A study testing Colchicine Tablets in people with Essential Hypertension, run by University of Copenhagen at 1 site 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 4 inclusion and 3 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 10 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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?

Changes in vascular function with treatment measured as flowchanges with ultrasound doppler in response to infusions of isoprenaline (time frame: Change in vascular conductance in response to infusions is assessed after acute treatment and before and within 72 hours after the 3 weeks of colchicine or placebo treatment). The study lists 3 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 NCT04303689, 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 10 May 2023.

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