Clinical trials: Schizophrenia and Predominant Negative Symptoms
Schizophrenia
Adjuvant Treatment With a Glycine Uptake Inhibitor in Participants With Negative Symptoms of Schizophrenia (P05695) (MK-8435-001)
The purpose of this study is to determine whether MK-8435 (Org 25935) is more effective than placebo in improving negative symptoms in participants with schizophrenia who are concurrently treated with a stable dose of a second…
- Trial name
- GIANT (NCT00725075)
- Testing
- MK-8435 (Org 25935) 4-8 mg, MK-8435 (Org 25935) 12-16 mg
- Volunteers
- 215 people
- Sponsor
- Merck Sharp & Dohme LLC
Schizophrenia
Adjunctive SPD489 to Antipsychotic Medication in Clinically Stable Adults With Persistent Predominant Negative Symptoms of Schizophrenia
The primary purpose of this study is to determine whether SPD489 40 mg, 100 mg, and 160 mg are effective and safe in the treatment of Negative Symptoms of Schizophrenia (NSS).
- Trial name
- NCT01738698
- Testing
- SPD489 40mg, SPD489 100mg, SPD489 160mg
- Where
- United States
- Volunteers
- 4 people
- Sponsor
- Shire
Schizophrenia and Predominant Negative Symptoms
Efficacy, Safety, and Tolerability of SPD489 in Adults With Schizophrenia and Predominant Negative Symptoms
To explore the efficacy of SPD489, as adjunctive therapy to a stable dose of atypical antipsychotic medication, on negative symptoms in adult subjects with clinically stable schizophrenia and predominant negative symptoms, as…
- Trial name
- NCT00922272
- Testing
- SPD489 (lisdexamfetamine dimesylate)
- Where
- 27 sites in United States
- Volunteers
- 92 people
- Sponsor
- Shire
Schizophrenia
Efficacy and Safety of Asenapine Compared With Olanzapine in Patients With Persistent Negative Symptoms of Schizophrenia (A7501013)(COMPLETED)(P05771)
Treatment with conventional antipsychotics such as haloperidol has little effect or may sometimes even worsen negative symptoms (such as blunted affect, emotional withdrawal, and poor rapport) of schizophrenia.
- Trial name
- NCT00145496
- Testing
- Asenapine, Olanzapine
- Volunteers
- 468 people
- Sponsor
- Organon and Co
Schizophrenia
SPD489 Low Dose and High Dose Ranges When Added to Stable Doses of Antipsychotic Medications in Clinically Stable Adults With Negative Symptoms of Schizophrenia
The primary purpose of this study is to determine whether SPD489 low dose range (40, 80, or 100mg) and high dose range (120, 140, or 160mg) are effective in the treatment of Negative Symptoms.
- Trial name
- NCT01760889
- Testing
- SPD489 low dose range (40mg, 80mg, and 100mg), SPD489 high dose range (120mg, 140mg and 160mg)
- Where
- 4 sites in United States
- Volunteers
- 1 people
- Sponsor
- Shire
Schizophrenia
Long-term Safety of SPD489 When Added to Stable Doses of Antipsychotic Medications in Clinically Stable Adults With Negative Symptoms of Schizophrenia
The primary purpose of this study is to determine if the long-term use of SPD489 (40, 80, 100, 120, 140, and 160mg) administered as a daily morning is safe and tolerable.
- Trial name
- NCT01760993
- Testing
- SPD489
- Where
- 2 sites in United States
- Volunteers
- 2 people
- Sponsor
- Shire