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Intranasal Oxytocin

Phase 2

Vasopressin Deficiency | Small molecule | Other |Tonix Pharmaceuticals Holding Corp.|Trials Updated: Sep 16, 2025

Intranasal Oxytocin development status

Highest phase Phase 2 (NCT05679908)
Phase scored for TNXPPhase 1
Registered trials 5 across 4 sponsors since Sep 2017

Intranasal Oxytocin target and mechanism

Molecular targetOXTR
ModalitySmall molecule

Also known as Intranasal Oxytocin (IN-OXT), TNX-1900

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials2
Total Enrollment128

FDA Designations

No designations recorded

Intranasal Oxytocin clinical trials

Intranasal Oxytocin · 2 trials · 5 indications

Phase 2 1Phase 1 1
NCT05679908A Study to Evaluate the Efficacy and Safety of TNX-1900 in Patients With Chronic MigraineChronic Migraine
COMPLETED88 Analytics
PHASE2COMPLETED
A Study to Evaluate the Efficacy and Safety of TNX-1900 in Patients With Chronic Migraine
Chronic MigraineUnlock trial analytics

Study Endpoints

Primary Endpoints

Mean Change in the Number of Monthly Migraine Headache Days
Last 28 days before Visit 2 (Day 1) and last 28 days before Visit 5 (Week 12)

Mean change in the number of monthly migraine headache days from the last 28 days of Baseline to the last 28 days of treatment (ie, month 3). A migraine headache day is any calendar day (0:00 to 23:59) in which the patient records in the e-diary: * An attack lasting 4 hours or more and meeting the ICHD-3 criteria for migraine without aura, or * A migraine with aura, or * An attack that meets ICHD-3 criteria for probable migraine, (a migraine subtype fulfilling all but one criteria (B-D) for migraine without aura), or * An attack of any duration that was believed by the patient to be a migraine and was relieved by a triptan, ergot derivative, or other migraine-specific abortive medication.

Dot-probe task - anxious behavior between low dose oxytocin and placebo
20 minutes following intervention at each main visit

Difference in response times (in milliseconds) to dots appearing in the location of the previously shown negative versus the neutral face between 6 IU oxytocin vs placebo in the dot-probe task.

Secondary Endpoints

Proportion of Patients Experiencing a ≥ 50% Reduction in the Number of Migraine Headache Days
Last 28 days before Visit 2 (Day 1) treatment and last 28 days before Visit 5 (Week 12)
Mean Change in the Number of Days Using Rescue Medication
Last 28 days before Visit 2 (Day 1) treatment and last 28 days before Visit 5 (Week 12)
Patient Global Impression of Change (PGIC)
Visit 5 (Week 12)
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposePREVENTION

Treatment Arms

ArmTypeDescription
TNX-1900 High DoseEXPERIMENTAL30 IU oxytocin taken intranasally twice daily.
TNX-1900 Low DoseEXPERIMENTAL30 IU oxytocin taken intranasally once daily. Placebo taken intranasally once daily.
PlaceboPLACEBO_COMPARATORPlacebo taken intranasally twice daily.
Part A Arm 1EXPERIMENTALMain visit 1: 6 IU intranasal oxytocin; Main visit 2: 24 IU intranasal oxytocin; Main visit 3: intranasal placebo
Part A Arm 2EXPERIMENTALMain visit 1: 6 IU intranasal oxytocin; Main visit 2: intranasal placebo; Main visit 3: 24 IU intranasal oxytocin
Part A Arm 3EXPERIMENTALMain visit 1: 24 IU intranasal oxytocin; Main visit 2: 6 IU intranasal oxytocin; Main visit 3: intranasal placebo
Part A Arm 4EXPERIMENTALMain visit 1: 24 IU intranasal oxytocin; Main visit 2: intranasal placebo; Main visit 3: 6 IU intranasal oxytocin
Part A Arm 5EXPERIMENTALMain visit 1: intranasal placebo; Main visit 2: 6 IU intranasal oxytocin; Main visit 3: 24 IU intranasal oxytocin
Part A Arm 6EXPERIMENTALMain visit 1: intranasal placebo; Main visit 2: 24 IU intranasal oxytocin; Main visit 3: 6 IU intranasal oxytocin
Part B Arm 1ACTIVE_COMPARATORIntranasal oxytocin 6 IU three times a day for 14 days
Part B Arm 2EXPERIMENTALIntranasal placebo three times a day for 14 days

Interventions

NameTypeDescription
TNX-1900DRUGPatients will spray TNX-1900 once into each nostril.
Placebo Nasal SprayDRUGPatients will spray placebo nasal spray once into each nostril.
Intranasal Oxytocin (IN-OXT)DRUG6 IU single dose
PlaceboDRUGIntranasal placebo three times a day for 2 weeks
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites26

Major Inclusion Criteria: * Men and women aged 18 to 65 years, inclusive, at the time of Visit 1. * History of migraine with or without aura for at least 1 year and onset at \< 50 years of age. Patient must also have a history of chronic migraine \> 3 months prior to Visit 1 as defined by IHS ICHD-...

Countries:United States
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Frequently asked questions about Intranasal Oxytocin

What is Intranasal Oxytocin used for?

Intranasal Oxytocin is being studied for use in Vasopressin Deficiency, a condition also known as arginine-vasopressin deficiency. It is an investigational small molecule being developed by Tonix Pharmaceuticals Holding Corp. (TNXP) and is currently in Phase 1 clinical development.

What does Intranasal Oxytocin target?

Intranasal Oxytocin targets the oxytocin receptor (OXTR). It is being investigated for its potential effects in patients with Vasopressin Deficiency, also called arginine-vasopressin deficiency. The drug is administered intranasally and is currently in Phase 1 clinical trials.

Who makes Intranasal Oxytocin?

Intranasal Oxytocin is being developed by Tonix Pharmaceuticals Holding Corp., a biopharmaceutical company traded on the NASDAQ under the ticker symbol TNXP. The drug is currently in Phase 1 clinical development for the treatment of Vasopressin Deficiency.

What phase is Intranasal Oxytocin in?

Intranasal Oxytocin is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The ongoing Phase 1 trial is recruiting patients with Vasopressin Deficiency in the United States.

What clinical trials is Intranasal Oxytocin in?

Intranasal Oxytocin is being studied in one active Phase 1 clinical trial with the identifier NCT04789148. The trial is titled 'Effects of Intranasal Oxytocin in Patients With Arginine-vasopressin Deficiency' and is recruiting 40 participants in the United States. It is a randomized, double-blind, active-controlled study.

Is Intranasal Oxytocin the same as IN-OXT?

Yes, Intranasal Oxytocin is also known as IN-OXT. This alternative name is used in clinical research and literature to refer to the same investigational drug being developed by Tonix Pharmaceuticals for Vasopressin Deficiency.