NCT03781544

Brief Summary

Evaluation of the effect of different analgesic treatments (Tramadol, Paracetamol, Diclofenac) on sympathetic nerve activity, blood pressure, heart rate, heart rate, and vascular function in osteoarthritis patients and healthy subjects.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
90

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Jan 2019

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

December 3, 2018

Completed
17 days until next milestone

First Posted

Study publicly available on registry

December 20, 2018

Completed
12 days until next milestone

Study Start

First participant enrolled

January 1, 2019

Completed
6.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

May 17, 2024

Status Verified

May 1, 2024

Enrollment Period

6.6 years

First QC Date

December 3, 2018

Last Update Submit

May 16, 2024

Conditions

Outcome Measures

Primary Outcomes (2)

  • resting MSNA (sympathetic nervous activity )

    Effect of different single analgesic treatments (Tramadol, Paracetamol, Diclofenac) on resting muscle sympathetic nerve activity (MSNA) in osteoarthritis patients (post 2 days of analgesic therapy washout phase) and in healthy subjects. Tramadol treatment will be compared to diclofenac and paracetamol (3 treatment arms). 90 participants (45 osteoarthritis patients, 45 healthy subjects); Single infusion of Tramadol (50 mg i.v.) Single infusion of Paracetamol (1000 mg i.v.) Single infusion of Diclofenac (75 mg i.v.)

    1day (110 min)

  • changes in FMD (Flow mediated vasodilation)

    Effect of a single acute intravenous analgesic treatment with tramadol versus paracetamol on changes in flow mediated dilatation (FMD) in osteoarthritis patients and in healthy subjects. Tramadol treatment will be compared with paracetamol as we previously demonstrated that paracetamol exerts no significant effects on endothelial function as measured by flow mediated dilatation. 80 participants (40 osteoarthritis patients, 40 healthy subjects); Single infusion of Tramadol (50 mg i.v.) Single infusion of Paracetamol (1000 mg i.v.)

    1 day (210min)

Study Arms (3)

Diclofenac

EXPERIMENTAL

Diclofenac (Diclofenacum natricum) A single i.v. infusion of Diclofenac (dose: 75mg/100ml) will be administered to the participants (treatment arm).

Drug: Diclofenac

Paracetamol

ACTIVE COMPARATOR

Paracetamol (Paracetamol Sintetica): A single i.v. infusion of Paracetamol (dose: 1g/100ml) will be administered to the participants (control arm).

Drug: Paracetamol

Tramadol

EXPERIMENTAL

Tramadol (Tramadol-Mepha): A single i.v. infusion of Tramadol (dose: 400mg/100ml) will be administered to the participants (treatment arm).

Drug: Tramadol

Interventions

A single i.v. infusion of Tramadol (dose: 400mg/100ml) will be administered to the participants (treatment arm).

Also known as: Tramadol-Mepha
Tramadol

A single i.v. infusion of Paracetamol (dose: 1g/100ml) will be administered to the participants (control arm).

Also known as: PARACETAMOL Sintetica
Paracetamol

A single i.v. infusion of Diclofenac (dose: 75mg/100ml) will be administered to the participants (treatment arm).

Diclofenac

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients ≥ 18 years of age, male or female, with a diagnosis of osteoarthritis or healthy subjects ≥ 18 years of age;
  • Written informed consent;

You may not qualify if:

  • History of hypersensitivity or allergy to any of the study drugs
  • Acute coronary syndrome, stroke, transient ischemic attack, cardiac, carotid or other major CV surgery, percutaneous coronary intervention (PCI) or carotid angioplasty within the 3 months prior to Visit 1;
  • Coronary or carotid artery disease likely to require surgical or percutaneous intervention within the 3 months after Visit 1;
  • Presence of significant endocrine diseases;
  • Presence of active acute infectious diseases;
  • Known narrow-angle glaucoma;
  • Known epilepsy;
  • Cimino-shunt operation on both arms;
  • Pregnancy, intention thereof during study, lack of sufficient contraception, breastfeeding;
  • Drug or alcohol abuse;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Heart Center Zurich

Zurich, 8091, Switzerland

RECRUITING

MeSH Terms

Interventions

TramadolAcetaminophenDiclofenac

Intervention Hierarchy (Ancestors)

CyclohexanolsHexanolsFatty AlcoholsAlcoholsOrganic ChemicalsDimethylaminesMethylaminesAminesLipidsAcetanilidesAnilidesAmidesAniline CompoundsPhenylacetatesAcids, CarbocyclicCarboxylic Acids

Study Officials

  • Frank Ruschitzka, MD

    Cardiology, University Heart Center Zurich

    STUDY DIRECTOR

Central Study Contacts

Isabella Sudano, MD

CONTACT

Anne-Marieke Vegter

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 3, 2018

First Posted

December 20, 2018

Study Start

January 1, 2019

Primary Completion

July 31, 2025

Study Completion

December 31, 2025

Last Updated

May 17, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations