NRX101 for Bipolar Depression and Sub-acute Suicidal Ideation and Behavior
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ClinicalTrials.gov Identifier: NCT03395392 |
Recruitment Status :
Recruiting
First Posted : January 10, 2018
Last Update Posted : August 9, 2022
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Condition or disease | Intervention/treatment | Phase |
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Bipolar Depression Suicidal Ideation and Behavior | Drug: NRX-101 Drug: Lurasidone HCl | Phase 2 |
Background and Rationale: NMDA antagonist drugs have shown to reduce symptoms of depression and suicidal ideation. NRX-101 is composed of D-cycloserine (DCS) an NMDA antagonist and lurasidone (5HT2a atypical antipsychotic and antidepressant). In a phase 2 clinical study of bipolar depression and acute suicidal ideation and behavior, (in patients requiring hospitalization) patients received an initial infusion of ketamine and then NRX-101 for 6 weeks. In that phase 2 study, NRX-101 showed the ability to maintain remission from depression and suicidality over 6 weeks when taken twice daily. In this current out patient study, patients with bipolar depression and subacute suicidality (not requiring hospitalization), ketamine will not be used.
Primary Objective:
- To test the hypothesis that treatment with NRX-101 is superior to standard of care (lurasidone) in improving symptoms of depression as measured by the total Montgomery Åsberg Depression Rating Scale (MADRS-10) score in patients with bipolar depression and subacute suicidal ideation and behavior (SSIB) which does not require hospitalization.
Secondary Objectives:
• To test the hypothesis that treatment with NRX-101 is superior to standard of care (lurasidone) in reducing suicidality in depressed bipolar patients with SSIB, as measured by the Columbia Suicide Severity Rating Scale (C-SSRS)
Methodology: : A multi-center, randomized, double-blind, trial in which patients with bipolar depression (MADRS ≥30) and subacute levels of suicidal ideation (C-SSRS 3 or 4, not requiring hospitalization) are randomized to receive twice daily oral NRX-101 or lurasidone (standard of care).
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 70 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Masking Description: | Participants and Care Providers will be masked with regard to medication administered. |
Primary Purpose: | Treatment |
Official Title: | Comparison of NRX-101 to Standard of Care (Lurasidone) for Bipolar Depression With Subacute Suicidal Ideation and Behavior |
Actual Study Start Date : | May 12, 2022 |
Estimated Primary Completion Date : | December 2022 |
Estimated Study Completion Date : | March 2023 |

Arm | Intervention/treatment |
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Experimental: NRX-101
Following study enrollment and randomization, subjects will receive twice daily NRX-101
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Drug: NRX-101
NRX-101, a fixed dose combination of D-cycloserine+lurasidone will be given twice a day by mouth |
Active Comparator: Lurasidone
Following study enrollment, subjects will receive twice daily lurasidone
|
Drug: Lurasidone HCl
Lurasidone HCl will be given twice a day by mouth |
- Change from Baseline in MADRS (Montgomery Åsberg Depression Rating Scale) score at Day 42 [ Time Frame: Six weeks ]Mean change from baseline to endpoint (Day 42/exit) in total MADRS score, a 10-item clinician-rated scale, with each item rated on a 0-6 severity scale (0 Minimum, 60 maximum), where higher scores indicate a worse outcome
- Time to Relapse [ Time Frame: 6 weeks ]Time to relapse, where relapse is defined as experiencing a return of suicidality in the Columbia Suicide Severity Rating Scale (C-SSRS) of >=4)), or a return to baseline levels of depression following an improvement of 25% or greater on the MADRS score, or the need to implement a new treatment plan. The C-SSRS is a low-burden measure of the spectrum of suicidal ideation and behavior that was developed in the National Institute of Mental Health Treatment of Adolescent Suicide Attempters Study to assess severity and track suicidal events through any treatment. A lower score on the C-SSRS indicates a better outcome (min=0, max=5)
- Percent in remission [ Time Frame: Day 42 ]Percent in remission at Day 42/exit
- Mean Change from baseline in C-SSRS score [ Time Frame: Day 42 ]Mean change from baseline to endpoint (Day 42/exit) in C-SSRS score

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Diagnosed with bipolar disorder by a qualified rater according to the criteria defined in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) and supported by the Mini International Neuropsychiatric Interview (MINI) 7.0.2.
- Confirmed active suicidal ideation (without the intention to act) as evidenced by an answer of 'Yes' on item 3 and/or item 4 and not requiring hospitalization at Screening and an answer of "No" on item 5 of the C-SSRS.
- A total score greater than or equal to 30 on the 10 items of the MADRS.
- Subject has no co-morbidities as ascertained by medical history, physical examination (including measurement of vital signs), clinical laboratory evaluations, and electrocardiogram (ECG)
Exclusion Criteria:
- Subject has current DSM-5 diagnosis of moderate or severe substance use disorder (except marijuana or tobacco use disorder) within the 12 months prior to Screening.
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Subject has a lifetime history of:
- phencyclidine (PCP)/ketamine drug abuse, or
- failed use of ketamine for depression or suicidality.
- Subject has schizophrenia or schizoaffective disorder, or any history of psychotic symptoms when not in an acute bipolar mood episode.
- Subject has a current major psychiatric disorder, diagnosed at Screening
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Subject has been prescribed more than one agent in each of the following categories at randomization:
- Approved SSRIs
- Approved serotonin and norepinephrine reuptake inhibitors (SNRIs)
- Approved tetracyclic antidepressants (TeCAs)
- Approved Mood stabilizers (e.g., lithium, valproic acid, and lamotrigine)
- Subject has signs and symptoms of active or residual COVID-19, or unresolved symptoms of COVID-19 that impact health

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03395392
Contact: NRx Clinical Contact Line | (855) 367-9101 | clinicaltrials@nrxpharma.com | |
Contact: NRx Clinical Contact Line | 4842546134 ext 733 |
United States, Florida | |
San Marcus Research Clinic, Inc. | Recruiting |
Miami Lakes, Florida, United States, 33014 | |
Contact: janeth bobadilla 305-424-7420 jbobadilla@sanmarcusrc.com | |
Principal Investigator: nancy navarro gonzalez, MD | |
United States, Georgia | |
ACMR | Recruiting |
Atlanta, Georgia, United States, 30331 | |
Contact: Lauren White 404-881-5800 l.white@cenexel.com | |
Principal Investigator: Maria Johnson | |
iResearch Atlanta, LLC | Recruiting |
Decatur, Georgia, United States, 30030 | |
Contact: Monica Mahathre 404-537-1281 Monica.Mahathre@iResearchAtlanta.com | |
iResearch Savannah | Recruiting |
Savannah, Georgia, United States, 31405 | |
Contact: Casey Chacona casey.chacona@iresearchsavannah.com | |
Principal Investigator: Michael Mobley, MD | |
United States, Maryland | |
CBH Health | Recruiting |
Gaithersburg, Maryland, United States, 20877 | |
Contact: Evan Vance 301-251-4702 e.vance@cenexel.com | |
Principal Investigator: Elia Acevedo, MD | |
United States, Nebraska | |
Omaha Insomnia and Psychiatric Services | Recruiting |
Omaha, Nebraska, United States, 68144 | |
Contact: elvedina becirovic 402-991-9630 ext 113 dina.becirovic@omahainsomnia.com | |
Principal Investigator: vidhya selvaraj, md | |
United States, Texas | |
Roots Behavioral Health | Recruiting |
Austin, Texas, United States, 78746 | |
Contact: Rachael Baker 512-707-1629 rachael@rootsbehavioralhealth.com | |
Principal Investigator: Brent Turnipseed, MD | |
JPS Health | Recruiting |
Fort Worth, Texas, United States, 76104 | |
Contact: Apoorva Deshpande 908-809-3753 adeshpan@jpshealth.org | |
Principal Investigator: Robert Litman, MD | |
Houston Mind and Brain | Recruiting |
Houston, Texas, United States, 77055 | |
Contact: Cristina Rodriguez 832-699-7922 cristin.rodriguez@houstonmindandbrain.com | |
Principal Investigator: Raymond Cho, MD | |
Health Texas | Recruiting |
Richmond, Texas, United States, 77407 | |
Contact: sara Khan 512-944-3771 sarak@perceptivepharmaresearch.com | |
Principal Investigator: Aqeel Hashmi, MD |
Study Director: | Martin Brecher, MD | NRx Pharma |
Responsible Party: | NeuroRx, Inc. |
ClinicalTrials.gov Identifier: | NCT03395392 |
Other Study ID Numbers: |
NRX101-003 |
First Posted: | January 10, 2018 Key Record Dates |
Last Update Posted: | August 9, 2022 |
Last Verified: | August 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Depression Depressive Disorder Bipolar Disorder Bipolar and Related Disorders Suicidal Ideation Behavioral Symptoms Mood Disorders Mental Disorders Suicide Self-Injurious Behavior Lurasidone Hydrochloride Antipsychotic Agents Tranquilizing Agents Central Nervous System Depressants |
Physiological Effects of Drugs Psychotropic Drugs Adrenergic alpha-2 Receptor Antagonists Adrenergic alpha-Antagonists Adrenergic Antagonists Adrenergic Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Serotonin 5-HT2 Receptor Antagonists Serotonin Antagonists Serotonin Agents Dopamine D2 Receptor Antagonists Dopamine Antagonists Dopamine Agents |