Ketamine clinical trials at University of California Health

Parkinson's disease (PD) is a devastating illness that has a growing impact on Veterans. One of the most disabling symptoms is depression, which is common in PD and linked to poor quality of life and higher risk of suicide. Unfortunately, there is a lack of effective treatments for depression in PD. Ketamine, which has rapid and potent antidepressant effects, is a potential option but has not been tested in Veterans with PD. Studies in rodents show that ketamine may not only improve depression in PD, it may target two of the underlying drivers of the disease: (1) reduced neuroplasticity, or the brain's ability to adapt and remodel itself; and (2) elevated inflammation. The investigators are conducting a randomized, placebo-controlled study to examine if a dose of intravenous (IV) ketamine improves depression in Veterans with PD. The investigators will also examine ketamine's effects on neuroplasticity and inflammation, which will help us understand how ketamine works in PD and if it can be a useful treatment for Veterans with the disease. This study will lay groundwork for a larger clinical trial across multiple VA sites.

This clinical trial evaluates whether it is possible to use a single dose of ketamine in combination with talk therapy to treat moderate to severe demoralization in patients with pancreatic ductal adenocarcinoma (PDAC) who take opioids for cancer-related pain. PDAC patients often suffer from high rates of psychosocial distress and pain. Symptoms of anxiety are highly prevalent among PDAC patients. While opioid analgesia (pain reliever) succeeds in managing some symptoms, chronic opioid therapy is associated with significant adverse effects, underscoring a need to identify alternative interventions in the treatment of PDAC-associated pain. PDAC patients frequently suffer from existential distress. Demoralization is a form of existential distress that is common among people with serious medical illnesses; it is characterized by poor coping with stressful events, and a loss of meaning and purpose in life. Talk therapy is a form of psychological treatment during which patients discuss problems, thoughts, and feelings. Ketamine has demonstrated efficacy for the treatment of depression, suicidality, and pain in non-cancer patients. This study may help researchers learn whether both ketamine and talk therapy may improve psychosocial distress and pain, as well as decreases in opioid analgesic use in patients with PDAC who take opioids for cancer-related pain.