Could aspirin and ketamine be the next depression breakthrough?
NCT ID NCT05615948
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This small study tested whether taking aspirin and ketamine together by mouth can help people with treatment-resistant depression. Fifteen adults who had not gotten better with standard antidepressants received the combination alongside their usual medication. Researchers measured changes in depression symptoms using a standard rating scale over one week.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- a combination of aspirin and ketamine taken by mouth
- What this could lead to
- If it works, this could offer a new, easy-to-take option for people with depression that hasn't responded to standard antidepressants.
- What could go wrong
- This was a very small, open-label study with only 15 people, so results may not apply widely. The combination has not been tested in larger, more rigorous trials.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
-
15 people
The number who actually took part.
- Started
-
Dec 2022
- Finished
-
May 2024
- Lead sponsor
-
Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 89 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adult patients with Treatment Resistant Depression with Montgomery-Asberg Depression Rating Scale score \>22 upon presentation to the clinic * Treatment Resistant Depression is defined as Major Depressive Disorder that does not cease after at least 6 week trial of another class of antidepressants * Unipolar Depression Exclusion Criteria: * Adult patients with recent or current suicidal ideation with an intent to act, homicidal ideations with an intent to act * History of Bipolar Disorder, Obsessive Compulsive Disorder, antisocial personality disorder, borderline personality disorder, and congestive cardiac failure * Uncontrolled hypertension (BP \>140 mm Hg systolic and/or \>90 mm Hg diastolic on two separate readings at the time of screening) or on 2 medications for hypertension * Patients with unstable vital signs (systolic blood pressure \<90 or\>160 mm Hg, pulse rate \<50 or \>150 beats/min, and respiration rate \<10 or \>30 breaths/min), * History of Gastrointestinal hemorrhage, renal and hepatic insufficiency * Allergy to Ketamine or Aspirin * Active Substance Abuse Disorder * Active psychosis * Active Peptic Ulcer Disease * Lithium Therapy * Swallowing difficulty * Consumption of Aspirin or NSAID's within 6 hours of arrival to the site * Previous participation in this study; a patient may not re-enroll in another study while in this study * Pregnant or breastfeeding
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Maimonides Medical Center
Brooklyn, New York, 11219, United States
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