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CancerPhase 3NCT00184496

Switching From Morphine to Methadone. A Clinical, Pharmacological and Pharmacogenetic Study

A Phase 3 study testing Methadone in people with Cancer, run by Norwegian University of Science and Technology at 1 site in Norway.

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

Cancer patients on morphine for chronic pain, with side effects or unsatisfactory pain relief, will be rotated to Methadone. We will try to find out what is the best methode to rotate, and the equivalent dosage. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cancer
What is being tested?
Methadone
Could I receive a placebo?
No, everyone receives an active treatment
How many people
42 participants
Where
1 siteNorway
Study dates
Aug 2004to Sep 2009
Phase
Phase 3
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • • Malignant disease.
  • On morphine and in need of opioid rotation. (A patient in need of opioid rotation is defined as having insufficient pain control with or without unacceptable side effects from opioids).
  • Able to complete the planned assessment schedules.
  • Above 18 years of age.
  • If out-patient, the patient lives with someone who can observe him/her.
  • Given informed consent according to the ethical guidelines.

Who cannot join

  • Not able to read or write in Norwegian
  • The patient has participated in a clinical study 4 weeks prior to inclusion

Trial locations and contacts

1 site in 1 country.

Norway1 site
  • St Olavs Hospital

    Trondheim, Trondheim, 7006

Other trials in Norway

About this study

Cancer patients on morphine for chronic pain, with side effects or unsatisfactory pain relief, will be rotated to Methadone. We will try to find out what is the best methode to rotate, and the equivalent dosage.

Read the detailed description

This study is based on the clinical observation that patients who are not well controlled on morphine or oxycodone may benefit from switching to another opioid, in this case methadone. Although the mechanism for such switch is not completely understood, evidence indicates that opioids with different chemical structures have different characteristics, not least in relation to new knowledge about genetic variation in opioid receptors. Another challenge is that there is much uncertainty regarding equianalgesic dose ratios for morphine and methadone. It seems that the higher the morphine doses, the relatively lower methadone doses are needed to substitute morphine. Furthermore, there is uncertainty to which switching procedures one should use, the most common ones are "stop and go" and a three days switch. Finally, it is reported that methadone may increase the QT interval of the ECG, and thus increase the risk for the ventricular arrhythmia Torsade de pointe. The aim of this randomized, open label, multicenter study is primarily to compare the switching procedures, but it will also provide more knowledge about equianalgesic dose ratios, the effect of methadone on the QT interval, genetical factors that may characterize patients needing opioid switch as well as their response to it, and finally if pharmacokinetic factors plays a role.

Conditions
Cancer
Being tested
Methadone
Keywords
Analgesics, Opioid/pharmacokinetics, Humans, Methadone/therapeutic use, Neoplasms/complications, pain/drug therapy
Medical subject headings
Neoplasms

What participants receive

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

  • MethadoneDrug

    To methods for switching morphine to methadon. Stop-and go versus overlap

Study groups in NCT00184496
Study groupRoleWhat they receive
methadonActive comparatorMorphine methadone stop and go switch
Receives: Drug: Methadone
MethadoneActive comparatorMethadon morphine overlap switch
Receives: Drug: Methadone

What is being measured

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

  1. The overall aim of the present study is to validate the switching procedure from morphine to methadone for patients with advanced cancer and a short life expectancy. More specifically, we will:

    Measured: 2 weeks

Secondary outcomes (2)
  1. Collect blood samples for present and future genetic analyses in order to explore inter individual variations in methadone and morphine doses based upon possible polymorphisms.

    Measured: 2 weeks

  2. Compare the QT-intervals on electrocardiograms obtained before and after start with methadone.

    Measured: 2 weeks

Timeline

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

  1. First posted16 Sep 2005 (estimated)
  2. Study startAug 2004
  3. Primary completionSep 2009
  4. Study completionSep 2009

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
42 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00184496
Sponsor's protocol ID
OPI 03/008
Status last verified
Feb 2014
First submitted
15 Sep 2005
Last updated
28 Feb 2014
Results posted
No
Data monitoring committee
No

Publications

  • Moksnes K, Dale O, Rosland JH, Paulsen O, Klepstad P, Kaasa S. How to switch from morphine or oxycodone to methadone in cancer patients? a randomised clinical phase II trial. Eur J Cancer. 2011 Nov;47(16):2463-70. doi: 10.1016/j.ejca.2011.06.047. Epub 2011 Jul 19.

    PubMed 21775131

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Methadone in people with Cancer, run by Norwegian University of Science and Technology at 1 site in Norway.

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 6 inclusion and 2 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 28 Feb 2014. 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 Norway. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

The overall aim of the present study is to validate the switching procedure from morphine to methadone for patients with advanced cancer and a short life expectancy. More specifically, we will: (time frame: 2 weeks). 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 NCT00184496, 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 28 Feb 2014.

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