Pseudobulbar Affect (PBA)Phase 3STARNCT00573443
Safety and Efficacy of AVP-923 in PBA Patients With ALS or MS
A Phase 3 study testing dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mg and dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mg in people with Pseudobulbar Affect (PBA), run by Avanir Pharmaceuticals at 62 sites in 3 countries.
Trial summary
Objectives of the study are to evaluate the safety, tolerability, and efficacy of two different doses of AVP-923 (capsules containing either 30 mg of dextromethorphan hydrobromide and 10 mg of quinidine sulfate [AVP-923-30] or 20 mg of dextromethorphan hydrobromide and 10 mg of quinidine sulfate [AVP-923-20]) when… Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Pseudobulbar Affect (PBA)
- What is being tested?
- dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mg and dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mg
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 326 participants
- Where
- 62 sitesin 3 countries
- Study dates
- Dec 2007to Sep 2009
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Main Inclusion Criteria:
- The patient has a diagnosis of Amyotrophic Lateral Sclerosis (according to El Escorial Criteria, WFN, 1998) and the time from diagnosis of ALS is not be longer than 30 months, or the patient has a diagnosis of multiple sclerosis or probable multiple sclerosis (according to McDonald criteria, 2001)
- The patient has a clinical history and clinical relevant symptoms of Pseudobulbar Affect (PBA)
- CNS-LS score at baseline is 13 or greater
Main Exclusion Criteria:
- Patients with myasthenia gravis
- Any personal history of complete heart block, QTc prolongation, or torsades de pointes
- Any family history of congenital QT interval prolongation syndrome
- Patients with known sensitivity to quinidine, dextromethorphan or opiate drugs (codeine, etc.)
Trial locations and contacts
62 sites in 3 countries.
62 sites in 3 countries
United States45 sites
Upstate Clinical Research
Albany, New York, 12205
South Coast Clinical Trials
Anaheim, California, 92804
University of Michigan
Ann Arbor, Michigan, 48109
The ALS Center at Emory University
Atlanta, Georgia, 30322
University of Colorado at Denver & Health Science Center
Aurora, Colorado, 80045
The John Hopkins Universitiy
Baltimore, Maryland, 21287
Massachusets General Hospital
Boston, Massachusetts, 02129
Jacobs Neurological Institute
Buffalo, New York, 14203
Universitiy of Vermont
Burlington, Vermont, 05405
Carolinas Medical Center
Charlotte, North Carolina, 28207
Northwestern University
Chicago, Illinois, 60611
Department of Neurology - The Cleveland Clinic Foundation
Cleveland, Ohio, 44195
Ohio State Universitiy
Columbus, Ohio, 43210
Neurology Specialists of Decatur of Decatur
Decatur, Georgia, 30033
Henry Ford Hospital
Detroit, Michigan, 48202
Duke Universitiy Medical Center
Durham, North Carolina, 27710
Neuroscience Center
Fort Lauderdale, Florida, 33334
Advanced Neurology Specialists
Great Falls, Montana, 59405
The Methodist Hospital - Baylor College of Medicine
Houston, Texas, 77030
UCI Medical Center
Irvine, California, 92868
Mayo Clinic
Jacksonville, Florida, 32224
Center for Neurologic Study
La Jolla, California, 92103
Universitiy of Nevada
Las Vegas, Nevada, 89102
University of Kentucky Health Care - Dept. of Neurology
Lexington, Kentucky, 40536
Neurology Associates
Lincoln, Nebraska, 68506
UCLA School of Medicine
Los Angeles, California, 90095
Department of Neuropsychiatry - Texas Tech University
Lubbock, Texas, 79430
Dean Foundation
Madison, Wisconsin, 53715
University of Miami
Miami, Florida, 33136
West Virginia University
Morgantown, West Virginia, 26506
Vanderbilt University
Nashville, Tennessee, 37232
Mount Sinai Medical Center
New York, New York, 10029
Neurological Institute - Columbia Presbyterian Center
New York, New York, 10032
Consultants in Neurology
Northbrook, Illinois, 60062
Drexel University - Department of Neurology
Philadelphia, Pennsylvania, 19107
The ALS Center - Penn Neurological Institute - The University of Pennsylvania
Philadelphia, Pennsylvania, 19107
St. Joseph's Hospital and Medical Center
Phoenix, Arizona, 85013
Oregon Health Science University
Portland, Oregon, 97239
University of Texas Health Science Center
San Antonio, Texas, 78229
The Forbes Norris MDA/ALS Research Center - California Pacific Medical Center
San Francisco, California, 94115
The ALS Center at UCSF
San Francisco, California, 94117
Neuromuscular Research Center
Scottsdale, Arizona, 85258
Baystate Medical Center
Springfield, Massachusetts, 01199
St.Louis University - Neuromuscular Clinic
St Louis, Missouri, 63110
Suncoast Neuroscience Associates
St. Petersburg, Florida, 33701
Argentina11 sites
FACENE
Buenos Aires, Buenos Aires F.D., 1117ABD
IADIN
Buenos Aires, Buenos Aires F.D., C1055AAD
Hospital Italiano
Buenos Aires, Buenos Aires F.D., C1181ACH
INEBA
Buenos Aires, Buenos Aires F.D., C1192AAW
Hospital Ramos Mejia
Buenos Aires, Buenos Aires F.D., C1221ADC
Hospital Britanico
Buenos Aires, Buenos Aires F.D., C1280AEB
Policlinico Bancario
Buenos Aires, Buenos Aires F.D., C1416DRJ
FLENI
Buenos Aires, Buenos Aires F.D., C1428AQK
Hospital Militar Regional de Cordoba
Córdoba, Córdoba Province, X5000HGX
Instituto Medico Rodriguez Alfici
Godoy Cruz, Mendoza Province, M5501AAP
Instituto de Neurociencias Rosario
Rosario, Santa Fe Province, 2002KQJ
Brazil6 sites
Santa Casa de Misericordia de Belo Horizonte
Belo Horizonte, M G, 30.150-221
Hospital de Clínicas-UFPR
Curitiba, Paraná, 80.060.900
Hospital Moinhos de Vento
Porto Alegre, Rio Grande do Sul, 90.560.030
Hospital da Restauração
Recife, Pernambuco, 52.010-040
Hospital Universitário Clementino Fraga Filho
Rio de Janeiro, Rio de Janeiro, 21941-913
Hospital das Clínicas da Faculdade de Medicina da Universidade São Paulo
São Paulo, São Paulo, 05.403-000
About this study
Official title: A Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Assess the Safety and Efficacy and to Determine the Pharmacokinetics of Two Doses of AVP-923 (Dextromethorphan/Quinidine) in the Treatment of Pseudobulbar Affect (PBA) in Patients With Amyotrophic Lateral Sclerosis (ALS) and Multiple Sclerosis (MS)
Objectives of the study are to evaluate the safety, tolerability, and efficacy of two different doses of AVP-923 (capsules containing either 30 mg of dextromethorphan hydrobromide and 10 mg of quinidine sulfate [AVP-923-30] or 20 mg of dextromethorphan hydrobromide and 10 mg of quinidine sulfate [AVP-923-20]) when compared to placebo, for the treatment of PBA in a population of patients with amyotrophic lateral sclerosis (ALS) or multiple sclerosis (MS) over a 12-week period. An additional objective is to determine the pharmacokinetic parameters of the two different doses of AVP-923 in a subset of the study population.
Pseudobulbar Affect (PBA) is a condition characterized by involuntary, sudden and frequent episodes of laughing and/or crying out of proportion or incongruous to the underlying emotion of happiness or sadness Other terms used to describe this condition include emotional lability, emotionalism, emotional incontinence, emotional discontrol, excessive emotionalism, and pathological laughing and crying. The outbursts can occur spontaneously or in response to provocative stimuli such as questions or events.
Read more
A body of evidence suggests that PBA can be modulated through pharmacologic intervention.
Dextromethorphan (DM) is a low-affinity uncompetitive antagonist of the N-Methyl-D-aspartate (NMDA) receptor, reducing the level of excitatory activity. DM also acts at the phencyclidine-binding site, which is part of the NMDA receptor complex. DM is a sigma receptor agonist, suppressing the release of excitatory neurotransmitters.
Quinidine (Q) is a known potent inhibitor of cytochrome P450 2D6 (CYP2D6), that decreases the metabolism of dextromethorphan and helps to achieve sustained and therapeutic levels of this drug.
- Conditions
- Pseudobulbar Affect (PBA)
- Being tested
- dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mg, dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mg, Placebo
- Keywords
- Amyotrophic Lateral Sclerosis (Lou Gehrig's disease, ALS), Multiple Sclerosis (MS)
- Medical subject headings
- Amyotrophic Lateral Sclerosis, Multiple Sclerosis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mgDrug
Also called AVP-923, Nuedexta™, DM 20 mg/ Q 10 mg, DMQ
Dextromethorphan hydrobromide (DM) and quinidine sulfate (Q) capsules (AVP-923 capsules), containing DM 20 mg/ Q 10 mg, taken once daily for 1 week and then twice daily for 11 consecutive weeks to complete a 12-week period
dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mgDrug
Also called AVP-923, DM 30 mg/ Q 10 mg, DMQ
Dextromethorphan hydrobromide (DM) and quinidine sulfate (Q) capsules (AVP-923 capsules), containing DM 30 mg/ Q 10 mg taken once daily for 1 week and then twice daily for 11 consecutive weeks to complete a 12-week period
PlaceboDrug
Placebo capsules (identical in appearance to AVP-923 capsules being studied in this trial), taken once daily for 1 week and then twice daily for 11 consecutive weeks to complete a 12-week period
| Study group | Role | What they receive |
|---|---|---|
| DM 30 mg/Q 10 mg | Experimental | AVP-923-30/10 Capsules (30 mg dextromethorphan/10 mg quinidine)administered once daily for 1 week and then twice daily for 11 weeks Receives: Drug: dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mg |
| DM 20 mg/ Q 10 mg | Experimental | AVP-923-20/10 Capsules (20 mg dextromethorphan/10 mg quinidine)administered once daily for 1 week and then twice daily for 11 weeks Receives: Drug: dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mg |
| Placebo | Placebo comparator | Placebo Capsules once daily for 1 week and then twice daily for an additional 11 weeks Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
PBA Episode Rate Ratio (Post/Pre), Regression Adjusted
Episodes were counted each day and recorded in a daily diary. The outcome measure is the ratio of the episode rate over the 84-day treatment period to the rate during the baseline period, adjusted for study site, and underlying disease using longitudinal negative binomial regression.
Measured: Baseline to Day 84
Secondary outcomes (6)
Mean Change From Baseline in CNS-LS Total Score by Visit
Center for Neurologic Studies-Lability Scale (CNS-LS) is an instrument for the measurement of PBA that has been validated for the use in patients with ALS and MS. It is a 7-item self-report questionnaire that measures the frequency and severity of PBA episodes, including assessments of labile laughter and labile tearfulness,and provides a score for total PBA (total score can range from 7-35). The following 5-point scoring was used: 1=Applies never, 2=Applies rarely, 3=Applies occasionally, 4=Applies frequently, 5=Applies most of the time. A score of 13 or higher may suggest PBA, and the higher the score the more severe the episodes.
Measured: Baseline, Day 15, Day 29, Day 57, Day 84
Mean Change From Baseline to Day 84 in Neuropsychiatric Inventory (NPI-Q) Frequency and Severity Score (EE Population)
The NPI is a retrospective (to 1 month) caregiver-informant interview assessing frequency and severity of 12 neuropsychiatric symptom domains. The NPI score is based on the sum of the severity ratings (0=absent, 1=mild, 3=severe). The 12 symptom domains include delusions, hallucinations, agitation/aggression, dysphoria/depression, anxiety, euphoria/elation, apathy/indifference, disinhibition, irritability/lability, aberrant motor behaviors, nighttime behavioral disturbances, and appetite/eating abnormalities. The NPI severity score is based on severity ratings (0=absent, 1=mild to 3=severe).
Measured: Baseline to Day 84
Mean Change From Baseline to Day 84 in Neuropsychiatric Inventory (NPI-Q) Frequency and Severity Score (ITT Population)
The NPI is a retrospective (to 1 month) caregiver-informant interview assessing frequency and severity of 12 neuropsychiatric symptom domains. The NPI score is based on the sum of the severity ratings (0=absent, 1=mild, 3=severe). The 12 symptom domains include delusions, hallucinations, agitation/aggression, dysphoria/depression, anxiety, euphoria/elation, apathy/indifference, disinhibition, irritability/lability, aberrant motor behaviors, nighttime behavioral disturbances, and appetite/eating abnormalities. The NPI severity score is based on severity ratings (0=absent, 1=mild to 3=severe).
Measured: Baseline to Day 84
Mean Change From Baseline at Day 84 in SF-36 (Short-Form) Health Survey Medical Outcome Score by Category
The SF-36 is designed to examine a person's perceived health status. The SF-36 includes one multi-item scale measuring eight health concepts: vitality, physical functioning, bodily pain, general health perceptions, physical role-, emotional role-, social role functioning, and mental health. Answers to each question are scored and summed to produce raw scale scores for each health concept which are then transformed to a 0 - 100 scale, a high score defining a more favorable health state. An aggregate summary measure is calculated by averaging the scores from the eight health concepts.
Measured: Baseline and Day 84
Mean Change From Baseline at Day 84 in Beck Depression Inventory (BDI-II) Total Score
The BDI-II is a 21-item self report instrument intended to assess the existence and severity of symptoms of depression, summed to give a single score. The BDI-II uses a 4-point for each item ranging from 0 to 3. A total score of 0-13 is considered minimal range, 14 to 19 is mild, 20 to 28 is moderate, and 29 to 63 is severe.
Measured: Baseline and Day 84
Mean Change From Baseline to Day 84 in Pain Rating Scale (PRS) of MS Subjects
Subjects with MS were instructed to also record daily the pain they experienced using the PRS. After evaluating the subject's ability to comply with these requirements, the investigator determined if a caregiver should complete the study diary and assessments. Subjects rated their pain over the past 12 hours on a scale of 0 to 10 (0=none, 10=worst pain ever experienced).
Measured: Baseline, Day 15, Day 29, Day 57, Day 84
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Dec 2007 (estimated)
- Study startDec 2007
- Primary completionJun 2009
- Study completionSep 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Pseudobulbar Affect (PBA)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 326 participants (actual)
Sponsor and investigators
- Lead sponsor
- Avanir Pharmaceuticals
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Syneos Health
- Responsible party
- Sponsor
- Investigators
- Adrian Hepner, M.D., Study director, Avanir Pharmaceuticals
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00573443
- Sponsor's protocol ID
- 07-AVR-123
- Acronym
- STAR
- Status last verified
- Mar 2017
- First submitted
- 13 Dec 2007
- Last updated
- 12 Apr 2017
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Pioro EP, Brooks BR, Cummings J, Schiffer R, Thisted RA, Wynn D, Hepner A, Kaye R; Safety, Tolerability, and Efficacy Results Trial of AVP-923 in PBA Investigators. Dextromethorphan plus ultra low-dose quinidine reduces pseudobulbar affect. Ann Neurol. 2010 Nov;68(5):693-702. doi: 10.1002/ana.22093.
PubMed 20839238
Study at a glance
From the registry record, last updated by the sponsor on 12 Apr 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Assess the Safety and Efficacy and to Determine the Pharmacokinetics of Two Doses of AVP-923 (Dextromethorphan/Quinidine) in the Treatment of Pseudobulbar Affect (PBA) in Patients With Amyotrophic Lateral Sclerosis (ALS) and Multiple Sclerosis (MS)
- ClinicalTrials.gov ID
- NCT00573443
- Acronym / sponsor ID
- STAR / 07-AVR-123
- Conditions
- Pseudobulbar Affect (PBA)
- Keywords
- Amyotrophic Lateral Sclerosis (Lou Gehrig's disease, ALS), Multiple Sclerosis (MS)
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 326 participants (actual)
- Lead sponsor
- Avanir PharmaceuticalsIndustry (pharma, biotech, devices)
- Collaborators
- Syneos Health
- Study start
- Dec 2007
- Primary completion
- Jun 2009 (actual)
- Study completion
- Sep 2009 (actual)
- First posted
- 14 Dec 2007 (estimated)
- Results
- Posted 10 Jul 2013
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Objectives of the study are to evaluate the safety, tolerability, and efficacy of two different doses of AVP-923 (capsules containing either 30 mg of dextromethorphan hydrobromide and 10 mg of quinidine sulfate [AVP-923-30] or 20 mg of dextromethorphan hydrobromide and 10 mg of quinidine sulfate [AVP-923-20]) when compared to placebo, for the treatment of PBA in a population of patients with amyotrophic lateral sclerosis (ALS) or multiple sclerosis (MS) over a 12-week period. An additional objective is to determine the pharmacokinetic parameters of the two different doses of AVP-923 in a subset of the study population.
Pseudobulbar Affect (PBA) is a condition characterized by involuntary, sudden and frequent episodes of laughing and/or crying out of proportion or incongruous to the underlying emotion of happiness or sadness Other terms used to describe this condition include emotional lability, emotionalism, emotional incontinence, emotional discontrol, excessive emotionalism, and pathological laughing and crying. The outbursts can occur spontaneously or in response to provocative stimuli such as questions or events.
A body of evidence suggests that PBA can be modulated through pharmacologic intervention.
Dextromethorphan (DM) is a low-affinity uncompetitive antagonist of the N-Methyl-D-aspartate (NMDA) receptor, reducing the level of excitatory activity. DM also acts at the phencyclidine-binding site, which is part of the NMDA receptor complex. DM is a sigma receptor agonist, suppressing the release of excitatory neurotransmitters.
Quinidine (Q) is a known potent inhibitor of cytochrome P450 2D6 (CYP2D6), that decreases the metabolism of dextromethorphan and helps to achieve sustained and therapeutic levels of this drug.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| DM 30 mg/Q 10 mg | Experimental | Drug: dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mgAVP-923-30/10 Capsules (30 mg dextromethorphan/10 mg quinidine)administered once daily for 1 week and then twice daily for 11 weeks |
| DM 20 mg/ Q 10 mg | Experimental | Drug: dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mgAVP-923-20/10 Capsules (20 mg dextromethorphan/10 mg quinidine)administered once daily for 1 week and then twice daily for 11 weeks |
| Placebo | Placebo comparator | Drug: PlaceboPlacebo Capsules once daily for 1 week and then twice daily for an additional 11 weeks |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mgAlso: AVP-923, Nuedexta™, DM 20 mg/ Q 10 mg, DMQDextromethorphan hydrobromide (DM) and quinidine sulfate (Q) capsules (AVP-923 capsules), containing DM 20 mg/ Q 10 mg, taken once daily for 1 week and then twice daily for 11 consecutive weeks to complete a 12-week period | Drug | DM 20 mg/ Q 10 mg |
| dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mgAlso: AVP-923, DM 30 mg/ Q 10 mg, DMQDextromethorphan hydrobromide (DM) and quinidine sulfate (Q) capsules (AVP-923 capsules), containing DM 30 mg/ Q 10 mg taken once daily for 1 week and then twice daily for 11 consecutive weeks to complete a 12-week period | Drug | DM 30 mg/Q 10 mg |
| PlaceboPlacebo capsules (identical in appearance to AVP-923 capsules being studied in this trial), taken once daily for 1 week and then twice daily for 11 consecutive weeks to complete a 12-week period | Drug | Placebo |
Primary outcome
PBA Episode Rate Ratio (Post/Pre), Regression Adjusted
Time frame: Baseline to Day 84
Episodes were counted each day and recorded in a daily diary. The outcome measure is the ratio of the episode rate over the 84-day treatment period to the rate during the baseline period, adjusted for study site, and underlying disease using longitudinal negative binomial regression.
6 secondary outcomes
Mean Change From Baseline in CNS-LS Total Score by Visit
Time frame: Baseline, Day 15, Day 29, Day 57, Day 84
Mean Change From Baseline to Day 84 in Neuropsychiatric Inventory (NPI-Q) Frequency and Severity Score (EE Population)
Time frame: Baseline to Day 84
Mean Change From Baseline to Day 84 in Neuropsychiatric Inventory (NPI-Q) Frequency and Severity Score (ITT Population)
Time frame: Baseline to Day 84
Mean Change From Baseline at Day 84 in SF-36 (Short-Form) Health Survey Medical Outcome Score by Category
Time frame: Baseline and Day 84
Mean Change From Baseline at Day 84 in Beck Depression Inventory (BDI-II) Total Score
Time frame: Baseline and Day 84
Mean Change From Baseline to Day 84 in Pain Rating Scale (PRS) of MS Subjects
Time frame: Baseline, Day 15, Day 29, Day 57, Day 84
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 Apr 2017.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 20839238Pioro EP, Brooks BR, Cummings J, Schiffer R, Thisted RA, Wynn D, Hepner A, Kaye R; Safety, Tolerability, and Efficacy Results Trial of AVP-923 in PBA Investigators. Dextromethorphan plus ultra low-dose quinidine reduces pseudobulbar affect. Ann Neurol. 2010 Nov;68(5):693-702. doi: 10.1002/ana.22093.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Adrian Hepner, M.D. study director
Avanir Pharmaceuticals
62 sites in 3 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing dextromethorphan hydrobromide 20 mg and quinidine sulfate 10 mg and dextromethorphan hydrobromide 30 mg and quinidine sulfate 10 mg in people with Pseudobulbar Affect (PBA), run by Avanir Pharmaceuticals at 62 sites in 3 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
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 12 Apr 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 62 sites in United States, Argentina, Brazil. 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?
Yes. Results are posted in the registry (first posted 10 Jul 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
PBA Episode Rate Ratio (Post/Pre), Regression Adjusted (time frame: Baseline to Day 84). 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 NCT00573443, 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 12 Apr 2017.