Trial to Investigate the Safety and Efficacy of GWP42003-P Versus Placebo as Adjunctive Therapy in Participants With Schizophrenia Experiencing Inadequate Response to Ongoing Antipsychotic Treatment
Public ClinicalTrials.gov record NCT04421456. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized, Double-blind, Parallel-group Trial to Investigate the Safety and Efficacy of GWP42003-P Versus Placebo as Adjunctive Therapy in Participants With Schizophrenia Experiencing Inadequate Response to Ongoing Antipsychotic Treatment
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will be conducted to evaluate the efficacy, safety, and tolerability of GWP42003-P versus placebo in participants with schizophrenia experiencing inadequate response to ongoing antipsychotic treatment.
Study identification
- NCT ID
- NCT04421456
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 95 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 55 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 18, 2020 (Actual)
- Primary completion
- Mar 16, 2022 (Actual)
- Completion
- Mar 16, 2022 (Actual)
- Last update posted
- Jun 15, 2023
2020 – 2022
United States locations
- U.S. sites
- 19
- U.S. states
- 11
- U.S. cities
- 19
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Clinical Trial Site | Bentonville | Arkansas | 72712 | — |
| Clinical Trial Site | Little Rock | Arkansas | 72211-3702 | — |
| Clinical Trial Site | Garden Grove | California | 92845 | — |
| Clinical Trial Site | Lemon Grove | California | 91945 | — |
| Clinical Trial Site | Oakland | California | 94607-3900 | — |
| Clinical Trial Site | Pico Rivera | California | 90660-4920 | — |
| Clinical Trial Site | Largo | Florida | 33770 | — |
| Clinical Trial Site | Lauderhill | Florida | 33319 | — |
| Clinical Trial Site | Tampa | Florida | 33614 | — |
| Clinical Trial Site | Lincolnwood | Illinois | 60712 | — |
| Clinical Trial Site | Shreveport | Louisiana | 71101 | — |
| Clinical Trial Site | St Louis | Missouri | 63118 | — |
| Clinical Trial Site | Las Vegas | Nevada | 89102 | — |
| Clinical Trial Site | Berlin | New Jersey | 08009 | — |
| Clinical Trial Site | Cedarhurst | New York | 11516 | — |
| Clinical Trial Site | New York | New York | 10035 | — |
| Clinical Trial Site | Rochester | New York | 14618 | — |
| Clinical Trial Site | Beachwood | Ohio | 44122 | — |
| Clinical Trial Site | Richardson | Texas | 75080 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 20 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04421456, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jun 15, 2023 · Synced Oct 17, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04421456 live on ClinicalTrials.gov.