AzTrials
AzTrials

Bipolar Disorder IIPhase 3NCT03039842

Combination of Dextromethorphan and Memantine in Treating Bipolar Disorder

A Phase 3 study testing Dextromethorphan, Memantine and dextromethorphan+memantine in people with Bipolar Disorder II, run by National Cheng-Kung University Hospital at 1 site in Taiwan.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
Search all trials

Trial summary

This is a research clinical trial of double-blind, stratified randomized, parallel group, two-centre study. It will be conducted in a total of 250~300 male and female subjects from the Department of Psychiatry at National Cheng Kung University Hospital. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Bipolar Disorder II
What is being tested?
Dextromethorphan, Memantine and dextromethorphan+memantine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
300 participants
Where
1 siteTaiwan
Study dates
1 Jan 2013to 31 Dec 2017
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 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A 2-day minimum for hypomania to diagnose bipolar II disorder
  • A total of Hamilton Rating Scale for Depression scored at least 18 or Young Mania Rating Scale scored at least 14 at the screening stage
  • Must allow to ensure acceptable compliance and visit

Who cannot join

  • Pregnant females or nursing
  • Women of childbearing potential not using adequate contraception
  • Received dextromethorphan, memantine, other antiinflammatory medication within 1 week prior
  • Clinically significant medical condition (cardiac, hepatic and renal disease)
  • Received electroconvulsive therapy patients within 4 weeks prior to the first dose of double-blind medication
  • Increase in total SGOT, SGPT, BUN and creatinine by more than 3X upper limit of normal.

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • National Cheng Kung University Hospital

    Tainan, 704

Other trials in Taiwan

About this study

This is a research clinical trial of double-blind, stratified randomized, parallel group, two-centre study. It will be conducted in a total of 250~300 male and female subjects from the Department of Psychiatry at National Cheng Kung University Hospital. Eligible subjects will be psychiatric out- and in-patients, aged between 18~65 years old, who have psychiatric evaluation with clinically suspected of having bipolar II disorder and fulfill the inclusion and exclusion criteria. The add-on double-blind study treatment with dextromethorphan/place will commence at randomization for while patients continue open-label valproate. Subjects will be enrolled for 12 weeks double-blind add-on treatment and randomly assigned to (1) 30mg dextromethorphan+valproate, (2) 5mg memantine+valproate, (3) dextromethorphan+memantine+valproate or (4) placebo+valproate. Concomitant benzodiazepine medication (preferably up to 8mg lorazepam) may be used for daytime sedation, agitation or insomnia during the study. For the consideration of the less influence to immune-system, resperidone 1-3mg/daily and fluoxetine maximum 20mg/daily will be chose. We will measure the treatment response and side effect to clarify the curative effect of DM and memantine add-on therapy to valproate in the treatment of bipolar disorders. This study is being performed to investigate the possibly significant beneficial effects on the subtypes of bipolar disorders psychopathology.

Read the detailed description

A total of 250~300 male and female subjects from the Department of Psychiatry at National Cheng Kung University Hospital. Eligible subjects who are aged between 18~65 years old and clinically suspected of having bipolar II disorder are invited. The add-on double-blind study treatment with dextromethorphan/place will commence at randomization for while patients continue open-label valproate. Subjects will be enrolled for 12 weeks double-blind add-on treatment and randomly assigned to (1) 30mg dextromethorphan+valproate, (2) 5mg memantine+valproate, (3) dextromethorphan+memantine+valproate or (4) placebo+valproate. Concomitant benzodiazepine medication (preferably up to 8mg lorazepam) may be used for daytime sedation, agitation or insomnia during the study. For the consideration of the less influence to immune-system, resperidone 1-3mg/daily and fluoxetine maximum 20mg/daily will be chose. We will measure the treatment response and side effect to clarify the curative effect of DM and memantine add-on therapy to valproate in the treatment of bipolar disorders. This study is being performed to investigate the possibly significant beneficial effects on the subtypes of bipolar disorders psychopathology.

Being tested
Dextromethorphan, Memantine, dextromethorphan+memantine, placebo+valproate
Keywords
dextromethorphan; memantine; treatment response
Medical subject headings
Bipolar Disorder

What participants receive

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

  • DextromethorphanDrug

    Also called 30mg dextromethorphan

  • MemantineDrug

    Also called 5mg memantine+valproate

  • dextromethorphan+memantineDrug

  • placebo+valproateDrug

Study groups in NCT03039842
Study groupRoleWhat they receive
30 mg DMExperimental30mg dextromethorphan+valproate
Receives: Drug: Dextromethorphan
5 mg MMExperimental5mg memantine+valproate
Receives: Drug: Memantine
DM+MMExperimentaldextromethorphan+memantine+ valproate
Receives: Drug: dextromethorphan+memantine
placeboPlacebo comparatorPlacebo+valproate
Receives: Drug: placebo+valproate

What is being measured

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

  1. treatment change assessed by plasma levels of cytokines (e.g., IL-6, IL-8)

    change assessment

    Measured: baseline, week 1, week 2, week 4, week 8, week 12

Secondary outcomes (2)
  1. depression change change

    depression change assessed by Hamilton Depression Rating Scale

    Measured: baseline, week 1, week 2, week 4, week 8, week 12

  2. manic state change

    Manic symptom assessed by Young Mania Rating Scale

    Measured: baseline, week 1, week 2, week 4, week 8, week 12

Timeline

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

  1. First posted1 Feb 2017 (estimated)
  2. Study start1 Jan 2013
  3. Primary completion31 Dec 2016
  4. Study completion31 Dec 2017 (estimated)

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
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03039842
Sponsor's protocol ID
CombindBP2014
Status last verified
Jul 2017
First submitted
29 Aug 2014
Last updated
11 Jul 2017
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Lee SY, Wang TY, Chen SL, Chang YH, Chen PS, Huang SY, Tzeng NS, Wang LJ, Lee IH, Chen KC, Yang YK, Hong JS, Lu RB. Combination of dextromethorphan and memantine in treating bipolar spectrum disorder: a 12-week double-blind randomized clinical trial. Int J Bipolar Disord. 2020 Mar 2;8(1):11. doi: 10.1186/s40345-019-0174-8.

    PubMed 32115672

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Dextromethorphan, Memantine and dextromethorphan+memantine in people with Bipolar Disorder II, run by National Cheng-Kung University Hospital at 1 site in Taiwan.

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: status not confirmed, as of the sponsor's last update on 11 Jul 2017. 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 Taiwan. 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.

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?

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?

treatment change assessed by plasma levels of cytokines (e.g., IL-6, IL-8) (time frame: baseline, week 1, week 2, week 4, week 8, week 12). 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 NCT03039842, 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 11 Jul 2017.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in