NCT03039842

Brief 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. 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.

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
300

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Jan 2013

Longer than P75 for phase_3

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

January 1, 2013

Completed
1.7 years until next milestone

First Submitted

Initial submission to the registry

August 29, 2014

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2016

Completed
1 month until next milestone

First Posted

Study publicly available on registry

February 1, 2017

Completed
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2017

Completed
Last Updated

July 11, 2017

Status Verified

July 1, 2017

Enrollment Period

4 years

First QC Date

August 29, 2014

Last Update Submit

July 6, 2017

Conditions

Keywords

dextromethorphan; memantine; treatment response

Outcome Measures

Primary Outcomes (1)

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

    change assessment

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

Secondary Outcomes (2)

  • depression change change

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

  • manic state change

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

Other Outcomes (3)

  • attention function change

    baseline, week 12

  • memory change

    baseline, week 12

  • executive functioning change

    baseline, week 12

Study Arms (4)

30 mg DM

EXPERIMENTAL

30mg dextromethorphan+valproate

Drug: Dextromethorphan

5 mg MM

EXPERIMENTAL

5mg memantine+valproate

Drug: Memantine

DM+MM

EXPERIMENTAL

dextromethorphan+memantine+ valproate

Drug: dextromethorphan+memantine

placebo

PLACEBO COMPARATOR

Placebo+valproate

Drug: placebo+valproate

Interventions

Also known as: 30mg dextromethorphan
30 mg DM
Also known as: 5mg memantine+valproate
5 mg MM

Eligibility Criteria

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

You may qualify if:

  • 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

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Cheng Kung University Hospital

Tainan, 704, Taiwan

Location

Related Publications (1)

  • 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.

MeSH Terms

Conditions

Bipolar Disorder

Interventions

DextromethorphanMemantine

Condition Hierarchy (Ancestors)

Bipolar and Related DisordersMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

MorphinansOpiate AlkaloidsAlkaloidsHeterocyclic CompoundsHeterocyclic Compounds, Bridged-RingHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingPhenanthrenesPolycyclic Aromatic HydrocarbonsPolycyclic CompoundsAmantadineAdamantaneBridged-Ring CompoundsHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Study Officials

  • Ru-Band Lu, MD

    Department of Psychiatry, National Cheng Kung University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Distinguished Professor

Study Record Dates

First Submitted

August 29, 2014

First Posted

February 1, 2017

Study Start

January 1, 2013

Primary Completion

December 31, 2016

Study Completion

December 31, 2017

Last Updated

July 11, 2017

Record last verified: 2017-07

Data Sharing

IPD Sharing
Will not share

Locations