Schizophrenia – Unmet Need – Detailed, Expanded Analysis (Cognitive Impairment)

According to Clarivate epidemiology, cognitive dysfunction (e.g., impaired attention / vigilance, memory, executive function) occurs in the vast majority of diagnosed schizophrenia patients and has a detrimental impact on their daily activities, occupational and social functioning, and adherence to antipsychotic treatment. Although the schizophrenia drug market is crowded, no drugs are approved specifically to treat cognitive impairment associated with schizophrenia (CIAS). Psychiatrists may prescribe off-label treatments and/or a nonpharmacological approach such as cognitive remediation, which is recommended by some recent treatment guidelines for schizophrenia; however, no therapy has demonstrated consistent efficacy in improving cognition. Although the late-phase pipeline for CIAS is sparse, Boehringer Ingelheim’s BI 425809, a glycine transporter-1 inhibitor, has had promising Phase II results and received FDA breakthrough therapy designation for CIAS. In addition, some agents with novel mechanisms of action are in early-phase development for CIAS. Overall, given the lucrative commercial potential for a drug demonstrating efficacy and safety in this underserved schizophrenia segment, it is essential for drug developers to understand the physician-perceived level of unmet need in terms of drug attributes and areas of opportunity in CIAS.

QUESTIONS ANSWERED

  • What is the relative importance of a therapy’s various attributes in psychiatrists’ prescribing decisions for CIAS (e.g., improvement in overall cognition, improvement in patient functioning, improvement in individual cognitive domains, long-term tolerability)?
  • How do U.S. and European psychiatrists rate the performance of various current therapies, including nonpharmacological therapy (e.g., computer-assisted cognitive remediation), on key treatment drivers and goals for CIAS?
  • What are the prevailing areas of unmet need and opportunity in the treatment of CIAS? What is the comparative level of need for improved treatment options in CIAS and other schizophrenia patient segments (e.g., negative symptoms)?
  • Based on conjoint analysis and TPP simulation, what trade-offs among efficacy, safety, delivery profile, and price are acceptable to psychiatrists for a hypothetical new drug for CIAS?

PRODUCT DESCRIPTION

Unmet Need supports clinical development decisions by identifying key attributes and assessing areas of unmet need for a specific disease or subpopulation. Based on surveys with U.S. and European physicians, this report provides insight into key treatment drivers and goals, the performance of current therapies, and the remaining commercial opportunities. One market scenario is profiled in detail by Clarivate experts and additional customized market scenarios can be evaluated with the corresponding TPP simulator.

Geography: United States, United Kingdom, France, Germany

Primary research: Survey of 60 U.S. and 31 European psychiatrists fielded in April 2022

Key therapies covered: Aripiprazole (oral), risperidone (oral), rivastigmine, memantine, donepezil, modafinil, nonpharmacological therapy (e.g., computer-assisted cognitive remediation)

Content highlights

  • Target Product Profile (TPP) simulator based on conjoint analysis methodology
  • Stated versus derived importance of product attributes on prescribing behavior
  • Assessment of current drug performance against treatment drivers and goals
  • Physician perceptions of unmet needs in the indication and related indications
  • Analysis of remaining drug development opportunities

Table of contents

  • Schizophrenia - Unmet Need - Detailed, Expanded Analysis (Cognitive Impairment)
    • Executive summary
      • Unmet need - CIAS - executive summary - June 2022
    • Introduction
      • Overview
      • Methodology
      • Rationale for treatment drivers and goals selection
        • Rationale for therapy selection
          • Therapies for CIAS and rationale for their selection
      • Treatment drivers and goals
        • Key findings: attribute importance
        • Relative importance of efficacy, safety and tolerability, convenience of administration, and nonclinical attributes to surveyed psychiatrists' prescribing decisions in CIAS
        • Importance of efficacy attributes to prescribing decisions in CIAS: United States
        • Importance of efficacy attributes to prescribing decisions in CIAS: Europe
        • Importance of safety and tolerability attributes to prescribing decisions in CIAS: United States
        • Importance of safety and tolerability attributes to prescribing decisions in CIAS: Europe
        • Importance of convenience of administration attributes to prescribing decisions in CIAS: United States
        • Importance of convenience of administration attributes to prescribing decisions in CIAS: Europe
        • Importance of nonclinical factors to prescribing decisions in CIAS: United States
        • Importance of nonclinical factors to prescribing decisions in CIAS: Europe
        • Key findings: stated vs. derived importance
        • Stated vs. derived importance of key efficacy, safety and tolerability, convenience of administration, and nonclinical attributes to prescribing decisions in CIAS: United States
        • Stated vs. derived importance of key efficacy, safety and tolerability, convenience of administration, and nonclinical attributes to prescribing decisions in CIAS: Europe
      • Product performance against treatment drivers and goals
        • Key findings
        • Overall performance of key therapies for CIAS: United States
        • Overall performance of key therapies for CIAS: Europe
        • Mean overall performance of key therapies for CIAS: United States and Europe
        • Relative performance of key therapies for CIAS across select efficacy attributes: United States
        • Relative performance of key therapies for CIAS across select efficacy attributes: Europe
        • Relative performance of key therapies for CIAS across select safety and tolerability attributes: United States
        • Relative performance of key therapies for CIAS across select safety and tolerability attributes: Europe
        • Relative performance of key therapies for CIAS across select convenience of administration attributes: United States
        • Relative performance of key therapies for CIAS across select convenience of administration attributes: Europe
        • Relative performance of key therapies for CIAS across select nonclinical attributes: United States
        • Relative performance of key therapies for CIAS across select nonclinical attributes: Europe
      • Assessment of unmet need
        • Key findings: unmet need in CIAS
        • Surveyed psychiatristsu2019 satisfaction with the performance of key therapies for CIAS on efficacy, safety and tolerability, convenience of administration, and nonclinical factors: United States
        • Surveyed psychiatristsu2019 satisfaction with the performance of key therapies for CIAS on efficacy, safety and tolerability, convenience of administration, and nonclinical factors: Europe
        • Surveyed psychiatrists' ascribed level of unmet need across key efficacy attributes in CIAS: United States
        • Surveyed psychiatrists' ascribed level of unmet need across key efficacy attributes in CIAS: Europe
        • Surveyed psychiatrists' ascribed level of unmet need across key safety and tolerability attributes in CIAS: United States
        • Surveyed psychiatrists' ascribed level of unmet need across key safety and tolerability attributes in CIAS: Europe
        • Surveyed psychiatrists' ascribed level of unmet need across key convenience of administration attributes in CIAS: United States
        • Surveyed psychiatrists' ascribed level of unmet need across key convenience of administration attributes in CIAS: Europe
        • Surveyed psychiatrists' ascribed level of unmet need across key nonclinical factors in CIAS: United States
        • Surveyed psychiatrists' ascribed level of unmet need across key nonclinical factors in CIAS: Europe
        • Key findings: unmet need in CIAS and related indications
        • Surveyed psychiatrists' ascribed level of unmet need in CIAS and related indications: United States
        • Surveyed psychiatrists' ascribed level of unmet need in CIAS and related indications: Europe
      • Opportunity analysis
        • Areas of opportunity in the CIAS market and emerging therapy insights
          • Opportunity: a therapy offering improvement in overall cognition in schizophrenia patients
          • Opportunity: a cognition-enhancing therapy offering improvement in functioning in patients with CIAS
          • Opportunity: an efficacious cognition-enhancing therapy that improves the residual psychiatric symptoms of schizophrenia
      • Target Product Profiles
        • Assessing drug development opportunities
        • Target Product Profile methodology
          • Attributes and attribute levels
        • Attribute importance and part-worth utilities
          • CIAS Target Product Profile: attribute importance
          • Improvement from baseline in overall MCCB score vs. placebo (effect size) at week 26
          • Improvement from baseline in SCoRS score vs. placebo (effect size) at week 26
          • Change from baseline in PANSS total score vs. placebo (effect size) at week 26
          • % of patients who experience serious adverse events at week 26
          • Long-term tolerability: % of patients ceasing therapy due to adverse events u2264 1 year
          • Treatment delivery
          • Price per treated day
        • Conjoint analysis-based simulation of a market scenario
          • CIAS market simulation: share of preference of Target Product Profiles included in the market scenario
          • CIAS market simulation: likelihood to prescribe of Target Product Profiles included in the market scenario
          • CIAS market simulation: Target Product Profiles included in the market scenario
      • Appendix
        • Key abbreviations
        • Bibliography

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