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NCT05656469RecruitingPhase 4

Clinical Study Evaluating Pharmacogenomics-informed Pharmacotherapy Versus Dosing as Usual in Psychiatric Disorders

A New Intervention for Implementation of Pharmacogenetics in Psychiatry

Source: ClinicalTrials.gov · Last updated 2 Jun 2026

Brief summary (registry, in English)

A 24-week, patient- and rater-blinded, two-arm, parallel-group controlled, and multi-centre randomized clinical trial (RCT) to establish the benefits of pharmacogenetics-informed pharmacotherapy versus dosing as usual (DAU) in psychiatric patients suffering from mood, anxiety, or psychotic disorders.

Status (registry)
Recruiting
Phase (registry)
Phase 4
Study type
Interventional
Enrollment
2500 (estimated)
First submitted
30 Nov 2022
Start date
23 Feb 2023
Primary completion date
30 Sept 2026
Lead sponsor
Parnassia Groep
NCT number
NCT05656469
EU CT number
2023-509680-25-00

What you commit to

  • Study type: Interventional · Phase 4
  • Planned participants: 2500
  • From 23 Feb 2023 to the primary completion date, 30 Sept 2026
  • 8 sites in 7 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Patients with a history of prior pharmacogenomic testing
  • Patients with no prior use of psychotropic medication (medication-naïve patients)
  • Polypharmacy defined as the routine use of five or more medications including over- the-counter, prescription and/or traditional and complementary medicines used by a patient (WHO 2019).

Lab values

  • Severe somatic comorbidities as reported in the subject's medical history or based on clinical chemistry/electrocardiography (ECG) results up to six months ago. If any of these comorbidities is detected on the basis of physical examination and/or clinical chemistry and/or ECG at the screening visit, participation is not possible.
    • Liver disease defined as follows: Alanine-Aminotransferase (ALAT) \>70u/L
    • Renal disease: Estimated glomerular filtration rate (eGFR) \< 60ml/min/1.73m2
    • Diabetes: Blood glucose \> 11.1 mmol/L or twice a fasting glucose \> 7.0 mmol/L
    • Cardiac disease: prolonged QT-interval.

Other

  • Alcohol and/or substance abuse and/or dependence (except nicotine)
  • Inability to use the mobile phone application
  • Pregnant or breastfeeding women

Who the study is looking for

  • Suffer from a depressive episode (major depressive disorder and bipolar disorder (currently depressive episode)) (as assessed by the MINI International Neuropsychiatric Interview (M.I.N.I.) in agreement with Diagnostic and Statistical Manual (DSM-5 criteria) of at least moderate severity (assessed using the Structured Interview Guide for the Hamilton Depression Scale (SIGH-D) with a score of 14 or higher) and/or suffer from an anxiety disorder (panic disorder, generalised anxiety disorder) (as assessed by the M.I.N.I. in agreement with DSM-5 criteria) of at least moderate severity (assessed using the Structured Interview Guide for the Hamilton Anxiety Scale (SIGH- A) with a score of 18 or higher) and/or suffer from a psychotic disorder (schizophrenia and schizoaffective disorder) (as assessed by the M.I.N.I. in agreement with DSM-5 criteria) of at least moderate severity (assessed using the Positive and Negative Symptom Scale (PANSS) with a score of 75 or higher).
  • Have had an inadequate response to at least 1 psychotropic treatment during their life-time. Inadequate response is defined as insufficient efficacy of a psychotropic treatment when dosed high enough and maintained long enough, or discontinuation of a psychotropic treatment due to AEs or intolerability.
  • Are about to switch (or have switched within the last 2 weeks prior to first contact with an investigator) to sertraline or escitalopram (for patients with mood or anxiety disorders), or to aripiprazole or risperidone (for patients with psychotic disorders) due to an inadequate response to or intolerance of the current/ previous medication.
  • Currently receiving inpatient or outpatient psychiatric treatment.
  • Be able to understand the requirements of the study and provide written informed consent to participate in this study; a signed and dated informed consent form (ICF) will be obtained from each patient before participation in the study.
  • To give written consent to the use and disclosure of clinical data from their medical records for the purpose of this study.
  • Age between ≥16 and \<70 years.
  • Ownership of a mobile phone (Android or iOS operation system) for passive monitoring.

Age in the registry: 16 years to 70 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (8)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Universitaetsklinikum Bonn AöR
Coordinator of this site? Confirm its status
BonnGermanyRecruiting
Ludwig Maximilian University Of Munich
Coordinator of this site? Confirm its status
MunichGermanyRecruiting
Hospital Clinic de Barcelona
Coordinator of this site? Confirm its status
BarcelonaSpainRecruiting
King's College, Institute of Psychiatry, Psychology & Neuroscience
Coordinator of this site? Confirm its status
LondonUnited KingdomRecruiting
Parassia Groep B.V.
Coordinator of this site? Confirm its status
AmsterdamNetherlandsRecruiting
Babeş-Bolyai University, Department of Clinical Psychology and Psychotherapy
Coordinator of this site? Confirm its status
Cluj-NapocaRomaniaRecruiting
University of Belgrade, Faculty of Pharmacy
Coordinator of this site? Confirm its status
BelgradeSerbiaRecruiting
SUNY Upstate Medical University, Department of Psychiatry and Behavioural Sciences
Coordinator of this site? Confirm its status
SyracuseUnited StatesNot yet recruiting

This page is information, not medical advice. Discuss any trial with your doctor.