TheraRadar
Data updated: May 26, 2026

FLUPHENAZINE DECANOATE

Trial Activity: Declining
CNS Approved 1987-07-14

Fluphenazine Decanoate is a long-acting parenteral antipsychotic medication. It is indicated for the management of patients who require prolonged neuroleptic therapy, such as individuals with chronic schizophrenia. This injectable formulation is specifically noted to be ineffective for managing behavioral complications in patients with mental retardation.

Source: FDA Label • GLAND

How FLUPHENAZINE DECANOATE Works

Fluphenazine decanoate acts as a potent dopamine receptor antagonist

Development Insights

Technical University of Munich conducting 1 trials (25%)
9 indications explored (Moderate)
schizophrenia (2 trials)
schizophrenia and disorders with psychotic features (1 trials)
schizoaffective disorders (1 trials)
9
Indications
--
Phase 3 Trials
38
Years on Market

Details

Status
Prescription
First Approved
1987-07-14
Routes
INJECTION
Dosage Forms
INJECTABLE

FLUPHENAZINE DECANOATE Approval History

1988
1989
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2000
2001
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Original
New Indication
New Form
Label Update
38 FDA actions from 1987 to 2025
Feb 2025 SUPPL
Label · Labeling
Feb 2025 SUPPL
Label · Labeling
Jan 2025 SUPPL
Label · Labeling

What FLUPHENAZINE DECANOATE Treats

1 indications

FLUPHENAZINE DECANOATE is approved for 1 conditions since its original approval in 1987. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Schizophrenia
Source: FDA Label

FLUPHENAZINE DECANOATE Boxed Warning

WARNING Increased Mortality in Elderly Patients with Dementia-Related Psychosis — Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients. Over the course of a typical 10-week cont...

FLUPHENAZINE DECANOATE Competitive Set

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Filters applied: drops same-active-ingredient (505(b)(2) reformulations), route-mismatch (topical vs systemic), and cross-therapeutic-area matches in same-indication rings.

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Active Pipeline

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

FLUPHENAZINE DECANOATE FDA Label Details

Indications & Usage

FDA Label (PDF)

FLUPHENAZINE DECANOATE is indicated for the treatment of Schizophrenia.

⚠️ BOXED WARNING

WARNING Increased Mortality in Elderly Patients with Dementia-Related Psychosis — Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of seventeen placebo-controlled trials (modal duration of 10 weeks), largely in patients tak...

Looking for the branded version?

PROLIXIN DECANOATE

Full clinical data, patents, trials, and competitive landscape for fluphenazine decanoate.

See PROLIXIN DECANOATE

Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.

How We Calculate These Metrics

Trial Activity Stage

Measures the current development activity pattern based on trial phases, status, and trends. Important: This measures R&D activity, not commercial lifecycle.

Trial statuses: "Active" means recruiting or ongoing. "Completed" means reached planned endpoint. "Terminated" means stopped early—often due to safety, efficacy, or business reasons.

  • Growth: High proportion of early-phase trials (Phase 1/2), active development
  • Expansion: Significant Phase 3 activity, approaching or pursuing approvals
  • Mature: Substantial Phase 4 post-marketing studies
  • Stable: Mixed phase distribution, steady development
  • Declining: Low active trial ratio, reduced R&D investment