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NRx Pharmaceuticals (Nasdaq:NRXP) notes presentation by Osmind, Inc. of IV Ketamine Efficacy vs. Nasal esketamine Efficacy at American Society of Clinical Psychopharmacology.

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NRx Pharmaceuticals (Nasdaq: NRXP)/b) highlighted a peer-reviewed poster presented at the 2026 American Society of Clinical Psychopharmacology conference. The Osmind/Yale study used Real World Evidence from 8,224 IV ketamine and 1,830 intranasal esketamine patients with treatment-resistant depression.IV ketamine showed higher remission (34% vs 26%) and response (63% vs 58%) rates, with odds ratios of 1.51 for remission and 1.22 for response. Authors stressed key limitations, including non-randomized treatment assignment and data drawn only from clinics using Osmind’s electronic medical record system.

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News Market Reaction – NRXP

+2.22%
10 alerts
+2.22% News Effect
+$3M Valuation Impact
$154.92M Market Cap
0.9x Rel. Volume

On the day this news was published, NRXP gained 2.22%, reflecting a moderate positive market reaction. Our momentum scanner triggered 10 alerts that day, indicating notable trading interest and price volatility. This price movement added approximately $3M to the company's valuation, bringing the market cap to $154.92M at that time.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement highlights peer-reviewed Real World Evidence showing both IV ketamine and intranas...
Analysis

This announcement highlights peer-reviewed Real World Evidence showing both IV ketamine and intranasal esketamine improved depression, with IV ketamine achieving higher remission (34% vs 26%) and response (63% vs 58%) rates. It follows recent ASCP-related technology updates and financing activity. Investors may track how such data support the company’s ketamine strategy, alongside future regulatory interactions and any additional capital raises under its existing registration statement.

Key Figures

IV ketamine patients: 8,224 patients Intranasal esketamine patients: 1,830 patients Matched analysis set: 3,560 people +5 more
8 metrics
IV ketamine patients 8,224 patients Treatment-resistant depression cohort in retrospective study
Intranasal esketamine patients 1,830 patients Comparator cohort in retrospective study
Matched analysis set 3,560 people Patients matched on baseline characteristics
IV ketamine remission 34% Remission rate in matched IV ketamine group
IV ketamine response 63% Response rate in matched IV ketamine group
Intranasal esketamine remission 26% Remission rate in intranasal esketamine group
Intranasal esketamine response 58% Response rate in intranasal esketamine group
Remission odds ratio OR 1.51 (P<.001) IV ketamine vs intranasal esketamine remission

Historical Context

5 past events · Latest: Jun 03 (Negative)
Pattern 5 events
Date Event Sentiment 24h Move Catalyst
Jun 03 Equity offering priced Negative -12.3% Underwritten common stock offering at $3.50 targeting about $20M gross proceeds.
Jun 02 Equity offering proposed Negative -12.3% Proposed underwritten offering under Form S-3 shelf for working capital needs.
May 28 Partner clinical data Positive +3.7% Emobot’s EMOCARE depression monitoring data presented with strong concordance metrics.
May 27 Technology deployment Positive -0.7% HOPE Therapeutics became first commercial site for Zeta TMS Navigation System.
May 18 Earnings and update Negative -5.0% Q1 2026 loss with limited cash, alongside progress on ketamine ANDA and NRX‑101.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Recent history shows negative reactions to equity offerings and mixed reactions to operational updates, with most news-driven moves aligning with the apparent sentiment.

Recent Company History

Over the last few weeks, NRx reported Q1 2026 results with a net loss of $1.4M and cash of $6.7M, and the stock fell about 5%. Two June offering-related announcements under its effective Form S-3 coincided with -12.34% moves, underscoring dilution sensitivity. In contrast, ASCP-related technology and partnership updates in late May produced modest, mixed price reactions. Today’s Real World Evidence ketamine data fits into this clinical/clinical-operations narrative.

Key Terms

intranasal esketamine, phq-9, major depressive disorder, real world evidence, +1 more
5 terms
intranasal esketamine medical
"patients with treatment resistant depression treated with IV ketamine and 1,830 patients treated with intranasal esketamine"
A prescription medication form of esketamine delivered as a nasal spray, used for rapid relief in people with hard-to-treat depression or acute suicidal thoughts. It acts faster than typical oral antidepressants and is given under medical supervision because of potential side effects and abuse risk. Investors track it for sales potential, clinic visit requirements, reimbursement rules and regulatory oversight, all of which affect revenue and adoption.
phq-9 medical
"reductions in depression as measured by the PHQ-9 scale depression scale"
A nine-question survey used by clinicians and researchers to screen for depression and track its severity over time, with each item scored and summed to give a single, easy-to-interpret result. Investors pay attention to PHQ-9 scores because they often serve as clinical trial endpoints or real-world outcome measures — like a mood thermometer showing whether a treatment is working — and those results can influence regulatory decisions, label claims and commercial prospects.
major depressive disorder medical
"Versus Intranasal Esketamine in Adults with Major Depressive Disorder"
A clinical condition characterized by persistent, severe low mood, loss of interest in daily activities, and reduced ability to function at work or home, lasting weeks or longer. It matters to investors because it drives demand for treatments and mental health services, affects workforce productivity and absenteeism, influences health-care and insurance costs, and shapes risks and opportunities for companies developing drugs, therapies or workplace programs—like a long-lasting storm that lowers economic output.
real world evidence regulatory
"documenting Real World Evidence of effectiveness associated with the use of intravenous (IV) ketamine"
Data about how a medical product performs in everyday use outside tightly controlled clinical trials, gathered from sources like medical records, insurance claims, patient reports, and device trackers. Investors care because this evidence can change how regulators, doctors and insurers view a product’s safety, effectiveness and value — like seeing how a car holds up on real roads versus a test track, which affects sales, approvals and reimbursement.
treatment resistant depression medical
"patients with treatment resistant depression treated with IV ketamine"
A form of major depressive disorder that does not improve after trying multiple standard treatments, such as common antidepressant medications or therapy. For investors, it signals a persistent unmet medical need and a larger, more complex market for new drugs, medical devices or specialized services—think of it like a door that won’t open with the usual keys, creating demand for alternative solutions and potentially longer-term healthcare spending.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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  • Osmind presented a retrospective comparative study of de-identified electronic health record data in a sample of 8,224 patients with treatment resistant depression treated with IV ketamine and 1,830 patients treated with intranasal esketamine from 800 community psychiatry clinics.
  • IV ketamine patients demonstrated significantly higher rates of remission (OR 1.51; P<.001) from depression and response (OR 1.22; P<.003) compared to patients treated with nasal esketamine.
  • The primary study limitation is that treatment assignments were not randomized.
  • Use of Real World Evidence for approval of drugs to treat depression has been emphasized in a recent White House Executive Order and recent Congressional Appropriations Language.

MIAMI, June 05, 2026 (GLOBE NEWSWIRE) -- NRx Pharmaceuticals (Nasdaq:NRXP, “the Company”) announces the presentation of a peer-reviewed poster at the 2026 American Society of Clinical Psychopharmacology annual conference documenting Real World Evidence of effectiveness associated with the use of intravenous (IV) ketamine to treat depression compared to intranasal esketamine. The presentation, entitled “Real World Evidence of Clinical Treatment Response Following Intravenous Racemic Ketamine Versus Intranasal Esketamine in Adults with Major Depressive Disorder” was jointly authored by Robert Dougherty, Emily Shih, Jamie Lo, and Jimmy Qian of Osmind, Inc., and Prof. Samuel Wilkinson, MD, of Yale University Department of Psychiatry.

In a study of the medical records of 8,224 patients treated with IV ketamine and 1,830 patients treated with intranasal esketamine, the authors reported that both groups of patients demonstrated meaningful and sustained reductions in depression as measured by the PHQ-9 scale depression scale. Patients were matched on baseline characteristics to create an analysis set of 3,560 people. In the study, 34% of IV ketamine patients achieved remission and 63% demonstrated response, compared to 26% remission and 58% response among intranasal S-ketamine patients. The IV ketamine patients were approximately 22% more likely to demonstrate response to treatment (OR 1.22; P<.003) and approximately 50% more likely to demonstrate remission from depression (OR 1.51; P<.001).

The authors concluded that “in routine clinical care, both IV ketamine and intranasal esketamine rapidly improve depression symptoms with IV ketamine showing higher remission and response rates than intranasal esketamine.” The authors further noted that the main weakness of the analysis is that treatment assignments were not randomized, hence unmeasured confounding variables may contribute to differences in outcomes. It should be noted that the trial included patients who presented for care at clinical facilities using the Osmind electronic medical record system and these patients may not be representative of all patients treated with these medications nationwide.

The use of Real World evidence in approvals of new drugs for the treatment of depression and suicidality, such as that reported in this study has been emphasized in a recent Presidential Executive Order1 and by in recent appropriations language posted by the US House of Representatives.2

“We at NRx appreciate the rigor with which Osmind and its academic partner approached this Real World Evidence study and look forward to the results of larger, confirmatory studies, as envisioned in our recent Type C meeting with the FDA,” said Dr. Jonathan Javitt, Chairman and CEO of NRx Pharmaceuticals.

About NRx Pharmaceuticals, Inc.
NRx Pharmaceuticals, Inc. (www.nrxpharma.com), is a clinical-stage biopharmaceutical company developing therapeutics based on its NMDA platform for the treatment of central nervous system disorders, specifically suicidal depression, chronic pain, and PTSD. The Company is developing NRX-100 (preservative-free intravenous ketamine) and NRX-101, (oral D-cycloserine/lurasidone). NRX-100 has been awarded Fast Track Designation for the treatment of Suicidal ideation in Depression, including Bipolar Depression. NRX-101 has been awarded Breakthrough Therapy Designation for the treatment of suicidal bipolar depression. NRx has filed an Abbreviated New Drug Application (ANDA), and initiated a New Drug Application filing for NRX-100 with an application for the Commissioner’s National Priority Voucher Program for the treatment of suicidal ideation in patients with depression, including bipolar depression.

Notice Regarding Forward-Looking Statements
The information contained herein includes forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended. Forward-looking statements generally include statements that are predictive in nature and depend upon or refer to future events or conditions, and include words such as "may," "will," "should," "would," "expect," "plan," "believe," "intend," "look forward," and other similar expressions among others. These statements relate to future events or to the Company's future financial performance, and involve known and unknown risks, uncertainties and other factors that may cause the Company's actual results to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. The Company has reported regulatory milestones as they have been achieved but has not predicted the outcome of any future regulatory determination. You should not place undue reliance on forward-looking statements since they involve known and unknown risks, uncertainties and other factors which are, in some cases, beyond the Company's control and which could, and likely will, materially affect actual results, levels of activity, performance or achievements. Any forward-looking statement reflects the Company's current views with respect to future events and is subject to these and other risks, including uncertainties and assumptions relating to the Company's operations, results of operations, growth strategy, and, among other things, liquidity. More detailed information about the Company and the risk factors that may affect the realization of forward-looking statements is set forth in the Company's most recent Annual Report on Form 10-K and other filings with the Securities and Exchange Commission. Investors and security holders are urged to read these documents free of charge on the SEC's website at http://www.sec.gov. Except as may be required by applicable law, the Company assumes no obligation to publicly update or revise these forward-looking statements for any reason, or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, whether as a result of new information, future events or otherwise.

For further information:
Brian Korb
Managing Partner, astr partners
(917) 653-5122
brian.korb@astrpartners.com

___________________
1 https://www.whitehouse.gov/presidential-actions/2026/04/accelerating-medical-treatments-for-serious-mental-illness/
2 https://docs.house.gov/meetings/AP/AP00/20260429/119253/HMKP-119-AP00-20260429-SD002.pdf


FAQ

What did NRx Pharmaceuticals (NRXP) announce on June 5, 2026 about ketamine and esketamine?

NRx Pharmaceuticals announced a peer-reviewed poster presentation comparing IV ketamine and intranasal esketamine for depression. According to NRx Pharmaceuticals, the Real World Evidence study was shown at the 2026 American Society of Clinical Psychopharmacology and used de-identified electronic health records from community psychiatry clinics.

What were the main results of the Osmind IV ketamine vs intranasal esketamine study cited by NRx (NRXP)?

The study found both IV ketamine and intranasal esketamine reduced depression, with IV ketamine showing higher remission and response rates. According to NRx Pharmaceuticals, remission was 34% vs 26% and response 63% vs 58%, with odds ratios of 1.51 for remission and 1.22 for response.

How many patients were included in the IV ketamine and nasal esketamine Real World Evidence study mentioned by NRx (NRXP)?

The Real World Evidence study analyzed records from 8,224 IV ketamine patients and 1,830 intranasal esketamine patients. According to NRx Pharmaceuticals, patients were drawn from 800 community psychiatry clinics using Osmind’s electronic medical record, with 3,560 patients matched on baseline characteristics for comparative analysis.

What were the key limitations of the IV ketamine vs esketamine study referenced by NRx Pharmaceuticals (NRXP)?

The authors highlighted non-randomized treatment assignment as the primary limitation, allowing possible unmeasured confounding. According to NRx Pharmaceuticals, the sample only included patients treated at facilities using Osmind’s electronic medical record, which may not represent all patients nationwide receiving IV ketamine or intranasal esketamine.

How does Real World Evidence in the Osmind study relate to future depression drug approvals for companies like NRx (NRXP)?

The study is an example of Real World Evidence increasingly emphasized in US policy for depression drug approvals. According to NRx Pharmaceuticals, recent Presidential and Congressional actions highlight Real World data, and the company looks toward larger confirmatory studies following its recent Type C FDA meeting.

Who collaborated on the Real World Evidence ketamine research highlighted by NRx Pharmaceuticals (NRXP)?

The poster was authored by researchers from Osmind and Yale University’s Department of Psychiatry. According to NRx Pharmaceuticals, contributors included Robert Dougherty, Emily Shih, Jamie Lo, Jimmy Qian from Osmind, and Professor Samuel Wilkinson, MD, from Yale, analyzing treatment-resistant depression in routine clinical practice.