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Drug Metabolism, Poor, CYP2D6-RELATEDPhase 1MalDNCT01289938

Pharmacogenetic Factors and Side Effects of Metoclopramide and Diphenhydramine

A Phase 1 study testing Diphenhydramine and Metoclopramide in people with Drug Metabolism, Poor, CYP2D6-RELATED, run by Matthias Schwab at 1 site in Germany.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Pharmacokinetic of Metoclopramide (MCP) in correlation to polymorphisms of CYP2D6 and Dopamine-D2-Receptor. Pharmacokinetic of Diphenhydramine (DPH) in correlation to polymorphisms of CYP2D6 Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Drug Metabolism, Poor, CYP2D6-RELATED
What is being tested?
Diphenhydramine and Metoclopramide
Could I receive a placebo?
No, everyone receives an active treatment
How many people
49 participants
Where
1 siteGermany
Study dates
Jul 2009to Jun 2015
Phase
Phase 1
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • BMI 20 - 27kg/m2
  • Caucasians
  • Healthy volunteers

Who cannot join

  • Pregnancy/lactation period
  • Drug allergy
  • Acute and chronic diseases
  • Taking medication
  • Abuse of drugs, alcohol etc.
  • Smoker

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Abteilung Klinische Pharmakologie, UKT Tübingen

    Tübingen, Baden-Wurttemberg, 72076

Other trials in Germany

About this study

Pharmacokinetic of Metoclopramide (MCP) in correlation to polymorphisms of CYP2D6 and Dopamine-D2-Receptor. Pharmacokinetic of Diphenhydramine (DPH) in correlation to polymorphisms of CYP2D6

Being tested
Diphenhydramine, Metoclopramide
Keywords
pharmacokinetic, pharmacogenetic, Metoclopramide, Diphenhydramine, CYP2D6 polymorphisms
Medical subject headings
Drug Metabolism, Poor, CYP2D6-Related

What participants receive

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

  • DiphenhydramineDrug

    Also called DPH

    Diphenhydramine 50 mg oral once

  • MetoclopramideDrug

    Also called MCP

    10 mg i.v. metoclopramide once

Study groups in NCT01289938
Study groupRoleWhat they receive
MetoclopramideActive comparatorMetoclopramide treatment
Receives: Drug: Metoclopramide
DiphenhydramineActive comparatorDiphenhydramine treatment
Receives: Drug: Diphenhydramine

What is being measured

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

  1. Area under curve of metoclopramide (MCP)

    Pharmacokinetic of MCP at following time points:

    0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours after drug application

    Measured: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours

  2. Area under curve of diphenhydramine(DPH)

    Pharmacokinetics of DPH at following time points:

    0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours after drug application

    Measured: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours

Secondary outcomes (4)
  1. Cmax of metoclopramide

    Cmax of metoclopramide at following time points:

    0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours after drug application

    Measured: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours

  2. Tmax of metoclopramide

    Tmax of metoclopramide at following time points:

    0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours after drug application

    Measured: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours

  3. Cmax of diphenhydramine

    Cmax of diphenhydramine at the following time points:

    0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours after drug application

    Measured: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours

  4. Tmax of diphenhydramine

    Tmax of diphenhydramine at the following time points:

    0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours after drug application

    Measured: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours

Timeline

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

  1. First posted4 Feb 2011 (estimated)
  2. Study startJul 2009
  3. Primary completionJun 2015
  4. Study completionJun 2015

Why it stopped: To unsuccessful recruitment of rare UM-genotype. All other planned genotype groups are completed (EM, IM and PM).

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 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
49 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01289938
Sponsor's protocol ID
IKP231
Other IDs
2008-003778-16, 2008
Acronym
MalD
Status last verified
May 2016
First submitted
2 Feb 2011
Last updated
13 May 2016
Results posted
No
Data monitoring committee
No

Publications

  • Kirchheiner J, Seeringer A. Clinical implications of pharmacogenetics of cytochrome P450 drug metabolizing enzymes. Biochim Biophys Acta. 2007 Mar;1770(3):489-94. doi: 10.1016/j.bbagen.2006.09.019. Epub 2006 Oct 4.

    PubMed 17113714
  • Schroth W, Antoniadou L, Fritz P, Schwab M, Muerdter T, Zanger UM, Simon W, Eichelbaum M, Brauch H. Breast cancer treatment outcome with adjuvant tamoxifen relative to patient CYP2D6 and CYP2C19 genotypes. J Clin Oncol. 2007 Nov 20;25(33):5187-93. doi: 10.1200/JCO.2007.12.2705.

    PubMed 18024866

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Diphenhydramine and Metoclopramide in people with Drug Metabolism, Poor, CYP2D6-RELATED, run by Matthias Schwab at 1 site in Germany.

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 3 inclusion and 6 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: stopped early, as of the sponsor's last update on 13 May 2016. 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 Germany. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 was stopped early (reason given: To unsuccessful recruitment of rare UM-genotype. All other planned genotype groups are completed (EM, IM and PM).). Results are not available in the source record.

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?

Area under curve of metoclopramide (MCP) (time frame: 0,5, 1, 1,5, 2, 3, 4, 6, 8, 12, 24, 34, 48, 72 hours). The study lists 2 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 NCT01289938, which also lists 2 linked publications.

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 13 May 2016.

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