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About
The goal of this clinical trial is to learn more about decision making in psychosis spectrum disorders, like schizophrenia. Participants will be people who have had symptoms of a psychosis spectrum disorder start within the last five years. The investigators will study how two study agents change decision making in people with psychosis, by asking participants to complete some brain games on the computer before and after taking the study agents. The investigators hope to improve our understanding of psychosis to help people in the future. The main research questions are:
Participants will:
Full description
Participants will be asked to complete ten appointments in this study: An intake appointment, 6 functional Magnetic Resonance Imaging (fMRI) appointments, and 3 clinical interview appointments. In addition, there will be 3 brief clinical check ins, and 6 phone call check ins after fMRI appointments.
Intake Appointment:
The first appointment is the Intake appointment. This visit will take between 1.75-2.75 hours, depending on how many study tasks are needed. Participants in this study may have participated in a sister study, called "State Representation in Early Psychosis 2 (STEP 2)." If so, they will not need to complete many of the intake questionnaires, and it is expected to take about 100 minutes for them to complete this appointment. If they did not participate in STEP 2, participants will need to complete the full intake battery.
During the interview, the investigators will ask questions about a participant's medical and psychiatric history, and current and past mental health symptoms. They will collect demographics, as well as information on the person's social life and quality of life. Participants will also provide a blood sample for clinical safety screening. The investigators will collect one 3mL tube, which is less than 2/3 of a teaspoon. If pregnancy is a physical possibility, they will also collect a urine sample for pregnancy testing.
fMRI Appointments: The second appointment is an fMRI + study agent appointment. Participants will come in person to the University of Minnesota Center for Magnetic Resonance Research. This visit will take about 7-7.5 hours.
First, the investigators will complete safety screening measures. This will include:
After screening measures are successfully completed, participants will complete the brain games on a computer. Afterwards, the participant will enter the fMRI machine. The very first fMRI scan will last 2 hours, as the investigators will get additional pictures for the structure of the brain before the scan that measures brain activity.
After this, the participant will take a single dose of the study agent. Neither the participant nor the study team will know which study agent the participant is taking. They will be randomly assigned to one of six schedules (for example, one participant will have A > B > C, and another will have A > C > B, and so on). The participant will be provided with a meal while the study agent metabolizes. Afterwards, the investigators will monitor the participant's vital signs and ask whether they are experiencing any adverse effects.
After the observation period is completed, the participant will complete a second fMRI scan. This scan will last 90 minutes. Afterwards, they will play the same brain games on the computer. The investigators will take another vital sign measurement and ask about adverse effects.
The following day, the investigators will contact the participant via phone to ask whether they experienced any adverse effects after leaving the study appointment. This call should last about 5 minutes.
The remaining 5 fMRI visits will be the same, except that the first scan of the day will be only 90 minutes long. fMRI appointments will be scheduled approximately one month apart.
Clinical Interview Appointments:
Between fMRIs 1 and 2, 3 and 4, and 5 and 6, the investigators will interview participants to ask questions about their current mental health symptoms, their quality of life, and their social life. Participants will also complete self-report questionnaires which cover the same topics. These appointments will take about 90 minutes. The appointment can be completed in person at the University of Minnesota or remotely via Zoom.
Between fMRIs 2 and 3, and 4 and 5, participants will be asked a brief series of questions about their recent mental health symptoms. This will be a remote visit conducted via Zoom or by phone. These calls should take about 20 minutes.
Enrollment
Sex
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Inclusion criteria
Between the ages of 18 and 35
Onset of a psychosis spectrum illness (schizophrenia, schizoaffective disorder, schizophreniform disorder, psychosis NOS, bipolar disorder with psychosis, or major depressive disorder with psychosis) within 5 years of enrollment
Estimated IQ of 70 or above
Proficient at English as determined through interactions with the study team
No change in psychiatric medication within a week of enrollment or MRI study visits
No clinically significant change in any medications for at least 1 month prior to study participation or MRI study visits, as determined by PI/Co-Is
Exclusion criteria
Medical Criteria:
Presence of the following medical concerns as determined by the study PI:
History of any of the following as reported by the participant:
Renal impairment, injury, or disease
Hepatic impairment, injury, or disease
Myocardial infarction or heart disease, or endorsement of history of or of cardiac symptoms at intake:
Low white blood cell count, or is diagnosed with leukopenia, neutropenia, or agranulocytosis
Presence of unmanaged hypertension (>140/90) or elevated resting heart rate (>100 bpm)
Abnormal clinical laboratory values:
Taking a medication or supplement that has a major drug interaction with any study drugs (e.g., ketamine, MAOIs, clomipramine, diazepam, propranolol, warfarin)
Allergies to study drugs
Is pregnant, planning to become pregnant, or is breastfeeding
Cannot pass the visual acuity test
Cannot pass the CMRR Subject Safety Screen due to MRI contraindications
Mental health criteria:
Meets criteria for a severe substance or alcohol use disorder within 3 months of enrollment
Lifetime history of a stimulant use disorder
Current manic episode as determined by the MINI
History of psychiatric hospitalization within 3 months of enrollment
Meets criteria for clinical risk of suicidal behavior, as defined by:
Symptom severity scores in the severe (6) or extremely severe (7) range on the BPRS for the following items: suicidality, disorientation, bizarre behavior, excitement, elevated mood
Any other psychiatric symptoms or conditions that, in the opinion of the PI, would impede participation in the study or put the participant at additional risk by participating
Other criteria:
Primary purpose
Allocation
Interventional model
Masking
24 participants in 6 patient groups
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Central trial contact
Freddie Holmberg Kohler
Data sourced from clinicaltrials.gov
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