NCT04523740

Brief Summary

To investigate if long-term treatment of paracetamol can be discontinued without no worsening on pain, health-related quality-of-life and level of function compared to continuing paracetamol treatment in patients aged 65 years or more.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
98

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2020

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2020

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

August 19, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 24, 2020

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2021

Completed
Last Updated

August 25, 2020

Status Verified

August 1, 2020

Enrollment Period

1.3 years

First QC Date

August 19, 2020

Last Update Submit

August 21, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Visual analog scale (VAS) pain during til last 24 hours

    Comparison of changes in visual analog scale (VAS) pain intensity during the last 24 hours, from baseline value at week 2 between the control and intervention group. VAS is a 0-100 mm scale where 0 is "no pain" and 100 is "worst pain"

    Change from baseline value at week 2

Secondary Outcomes (9)

  • EQ5D-5L index

    Change from baseline value at week 2

  • Treatment failure.

    Week 2

  • Grip strength

    Change from baseline value at week 2

  • Sitting-rising test

    Change from baseline value at week 2

  • Sum of daily visual analog scale (VAS) pain

    Sum from baseline to week 2

  • +4 more secondary outcomes

Study Arms (2)

Placebo replacement

EXPERIMENTAL

Participants will discontinue the paracetamol treatment, and be administered 6 to 8 tablets of placebo per day

Drug: Placebo

Usual care with paracetamol

ACTIVE COMPARATOR

Participants will continue the paracetamol treatment, and be administered 6 to 8 tablets of 500mg paracetamol per day

Drug: Paracetamol

Interventions

Patients who use regular paracetamol will now receive 6 to 8 tablets of placebo per day for 2 weeks

Placebo replacement

Patients who use regular paracetamol will now receive 6 to 8 tablets of 500 mg paracetamol per day for 2 weeks

Also known as: Acetaminophen
Usual care with paracetamol

Eligibility Criteria

Age65 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • years or more
  • Regular daily users of 3 to 4 grams of paracetamol for at least 6 months prior to enrollment

You may not qualify if:

  • Malignant pain cf. their medical records
  • Patients using other regular analgesics cf. indication on prescription
  • Patients receiving paracetamol tablets with modified release or sustained release
  • Patients in warfarin treatment
  • Patients with terminal illnesses, cf. their medical records.
  • Patients receiving dosages dispensed by their pharmacy
  • Mini-Mental State Examination (MMSE) score less than 25
  • Patients with or suspected to have COVID-19.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of clinical pharmacology

Copenhagen, Bispebjerg, 2400, Denmark

RECRUITING

MeSH Terms

Conditions

Chronic PainPain

Interventions

Acetaminophen

Condition Hierarchy (Ancestors)

Neurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

AcetanilidesAnilidesAmidesOrganic ChemicalsAniline CompoundsAmines

Study Officials

  • Jon T Andersen, MD, PhD

    Department of Clinical Pharmacology

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Charlotte Vermehren, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MSc Pharm, PhD candidate

Study Record Dates

First Submitted

August 19, 2020

First Posted

August 24, 2020

Study Start

August 1, 2020

Primary Completion

December 1, 2021

Study Completion

December 1, 2021

Last Updated

August 25, 2020

Record last verified: 2020-08

Data Sharing

IPD Sharing
Will not share

Locations