Ketamine Treatment Options

The goal of the ADEPT Study is to understand anhedonia in young people and how it changes based on treatments targeting the brain circuit underlying it. Anhedonia is a challenging mental health symptom that involves difficulty with motivation to experience pleasant events. This study could help develop treatments for people whose depression does not improve with traditional treatments. The ADEPT Study includes two phases. In Phase 1, participants are asked to go through a series of activities to measure anhedonia, including MRI scans, blood draws, behavioral tasks, clinical interviews, questionnaires, and app-based assessments of experiences and behaviors. Phase 2 involves therapeutic activities, such as transcranial magnetic stimulation (TMS), positive affect training, and, for some people, ketamine administration. If the participant qualifies and is interested, they may choose to do Phase 2 activities in addition to Phase 1. Read Less

Among critically ill adults undergoing emergency tracheal intubation, one in five experience hypotension, cardiac arrest, or death. The sedatives used to rapidly induce anesthesia for emergency tracheal intubation have been hypothesized to effect cardiovascular complications and patient outcomes, but the optimal sedative medication for intubation of critically ill adults remains unknown. Ketamine and etomidate are the two most commonly used sedatives during intubation of critically ill adults. Data from a randomized clinical trial are urgently needed to determine the effect of ketamine versus etomidate on cardiovascular complications and clinical outcomes of emergency tracheal intubation. Read Less

The RSI-LTO study collects long-term outcomes from the RSI trial (NCT05277896). One-third of adults who are intubated in the ED or ICU experience symptoms of posttraumatic stress disorder (PTSD). PTSD is a psychiatric disorder triggered by a "shocking, scary, or dangerous event." Critical illness, tracheal intubation, and mechanical ventilation can be traumatic and distressing events. Patients may recall the intubation procedure, the feeling of the breathing tube in their throat, or being unable to move ("paralyzed"). While on the breathing machine, patients may experience delirium, frightening hallucinations, and delusions. Patients with PTSD after critical illness can be hypervigilant, anxious, and troubled by intrusive thoughts, nightmares, and flashbacks that last months to years after critical illness and that PTSD negatively impacts patients' marriages, work, and quality of life and increases patients' risk of depression, anxiety, substance use disorder, and suicide. Ketamine may prevent PTSD symptoms by blocking the pathways in the brain's glutaminergic system that are responsible for the formation of traumatic memories In outpatients with chronic PTSD, a single dose of ketamine has been shown to reduce PTSD symptoms for up to 2 weeks. Even a modest reduction in PTSD would translate into tens of thousands of fewer cases of PTSD each year, more cases of PTSD each year than any other medical intervention evaluated to date. Read Less

Background: Major depressive disorder (MDD) is a serious mental illness that can put people at risk of self-harm and death. Many drugs are used to treat MDD, but it can take a long time for them to be effective. Researchers want to know if a faster-acting drug, (2R,6R)-hydroxynorketamine (HNK), can better treat the symptoms of MDD. Objective: To test a study drug (HNK) in people with MDD. Eligibility: People aged 18 to 70 years with MDD. They must have had a screening assessment under protocol 01-M-0254. Design: Participants will be tapered off their current MDD drugs over 2 to 5 weeks. They will stay off of the drugs for up to 2 weeks prior to starting the study medication and procedures. They will have a physical exam with blood tests. They will have tests of their heart function, mood, and thinking. They will answer questions about their symptoms. They may choose to have imaging scans and scans of their brain activity. HNK is given through a tube attached to a needle inserted into a vein. Participants will receive infusions on this schedule: They will receive 4 infusions over 2 weeks. They will stay in the clinical center overnight after each infusion or for the duration of the study. They will receive no drugs for 2 to 3 weeks. They will have 4 more infusions over 2 weeks, with overnight stays after each or for the duration of the study. One set of 4 infusions will be the HNK. The other set of 4 infusions will be a placebo. A placebo looks just like the real drug but contains no medicine. Participants will not know when they are getting the HNK or placebo. ... Read Less

Rib fractures are a common admission to the trauma service. The mainstay of treatment is pain control to improve respiratory effort in order to offset the risk of pneumonia and mechanical ventilation. In addition to standard pain control modalities, the investigator's institution utilizes paravertebral blocks as well as lidocaine and ketamine infusions for pain control. The current standard of care for pain control is to begin with acetaminophen, ibuprofen or celecoxib and opioids with the addition of paravertebral blocks as needed. In certain situations, a paravertebral block is contraindicated, and pain control is relegated to lidocaine and ketamine infusion. The use of lidocaine infusion alone and ketamine infusion alone for pain control has been studied and has been shown to be safe. However, concurrent use of these two medications to control rib fracture pain is relatively new and the efficacy compared to paravertebral block is not known. The goal of the study is to show non-inferiority of simultaneous lidocaine and ketamine infusions versus paravertebral blocks. Read Less

This study is being done to see if Prolonged Exposure (PE), a well-researched, very effective individual (one-to-one) behavioral therapy designed to help people to directly deal with traumatic events they have suffered in the past, can be combined with intranasal esketamine (ketamine) for the treatment of posttraumatic stress disorder (PTSD) to enhance treatment benefits. Ketamine nasal spray is a drug approved by the U.S. Food \& Drug Administration (FDA) for treatment resistant depression. Combined with PE, intranasal ketamine may help to augment PE and further reduce participants' PTSD symptoms. Read Less

This is a single site, single dose clinical trial of intravenous (IV) ketamine for medically hospitalized adolescents and young adults with anorexia nervosa or atypical anorexia nervosa. Eating disorder symptoms will be measured pre- and post-ketamine infusion. Investigators hypothesize that ketamine will increase cognitive flexibility, making medical hospitalizations less distressing by improving the ability to learn new, positive associations with food. Read Less

The purpose of this study is to see whether using ketamine to increase glutamate in the prefrontal cortex can reduce Multiple Sclerosis (MS) related fatigue. The investigator proposes a prospective, crossover, randomized, placebo-controlled study to assess the efficacy and safety of low, single dose Ketamine, to assess its efficacy and safety in patients with MS-related fatigue. Read Less

In situations where intravenous access is not readily available or is unobtainable and the intranasal route is not feasible, another non-invasive route of ketamine administration, such as inhalation via breath-actuated Nebulizer (BAN), is becoming a viable alternative. The BAN allows the controlled, patient-initiated delivery of analgesics in a measured and titratable fashion. (18) Ketamine has been studied as a nebulized drug in a lot of different settings and for a lot of different reasons, such as to treat acute pain after surgery (like a sore throat after being intubated), as a pre-medication for general anesthesia, to treat cancer pain, and as a therapy for asthmaticus. Our research team has published two case series of 10 adult patients who were given nebulized ketamine (via BAN) for a variety of acute traumatic and non-traumatic painful conditions. The patients showed a 60% decrease in pain and a small number of side effects. Furthermore, our group published a randomized, double-blind trial of 120 adult patients evaluating the analgesic efficacy and safety of nebulized ketamine at three different dosing regimens for acute pain in the ED (0.75 mg/kg, 1 mg/kg, and 1.5 mg/kg), showing similar analgesic efficacy between the three different dosing regimens for short-term (up to 120 minutes) pain relief. Lastly, we recently completed a randomized, double-blind, double-dummy clinical trial comparing the analgesic efficacy and safety of nebulized ketamine and intravenous ketamine in managing acute pain in adult ED patients, with data currently being analyzed. Nebulized fentanyl given in the ED to adults with acute traumatic and non-traumatic pain syndromes at a dose range of 1.5-4 mcg/kg showed the same or even better pain-relieving effects than IV fentanyl and IV morphine alone. Our objective is to compare the analgesic efficacy and rates of side effects of a 0.75 mg/kg dose of ketamine administered via breath-actuated nebulizer (BAN) to a dose of 3 mcg/kg of fentanyl administered via breath-actuated nebulizer (BAN) in adult patients presenting to the ED with acute painful conditions. Read Less

The purpose of this study is to understand how ketamine brings about rapid improvement in Obsessive-Compulsive Disorder (OCD) symptoms. Read Less

The study involves multiple retrospective analyses to understand the utilization of mental health treatments provided at Greenbrook and their effectiveness Read Less

The investigators propose to test the hypothesis that perioperative infusions of lidocaine and/or ketamine reduce opioid consumption and pain scores in adults recovering from elective inpatient abdominal surgery. Read Less