NCT05137704

Brief Summary

The main aim of the study is to learn about the demographic and clinical characteristics, healthcare resources utilization (HCRU) and costs associated with before and after ADHD diagnosis in England. No study medicines will be provided to participants in this study. The record available in Clinical Practice Research Datalink (CPRD) database and Hospital Episode Statistics (HES) database for ADHD participants will be assessed.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
2,236

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2021

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 25, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 30, 2021

Completed
1 day until next milestone

Study Start

First participant enrolled

December 1, 2021

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2022

Completed
Last Updated

July 12, 2022

Status Verified

July 1, 2022

Enrollment Period

4 months

First QC Date

November 25, 2021

Last Update Submit

July 11, 2022

Conditions

Outcome Measures

Primary Outcomes (13)

  • Number of General Practitioner (GP) Appointments

    Number of GP appointments will be reported.

    Up to approximately 36 months

  • Number of Referrals to Psychiatrist

    Number of referrals to psychiatrist will be reported.

    Up to approximately 36 months

  • Number of Referrals by Specialist

    Number of referrals by specialist will be reported.

    Up to approximately 36 months

  • Number of Outpatient Visits by Specialist

    Number of outpatient visits by specialist will be reported.

    Up to approximately 36 months

  • Number of Investigations Undergone

    Number and type of investigations undergone will be reported.

    Up to approximately 36 months

  • Number of Accident and Emergency Visits

    Number of accident and emergency visits will be reported.

    Up to approximately 36 months

  • Number of Reasons for Admission

    Number of reasons for admission will be reported.

    Up to approximately 36 months

  • Number of Inpatient Hospitalizations

    Number of inpatient hospitalizations will be reported.

    Up to approximately 36 months

  • Length of Stay in Hospital

    Length of stay in hospital will be reported.

    Up to approximately 36 months

  • Total Healthcare Costs

    Health care cost includes prescription costs, primary health care consultations, investigations, hospital admissions, and outpatient appointments.

    Up to approximately 36 months

  • Number of Participants Prescribed With Pharmacological Treatments

    Number of participants prescribed with pharmacological treatment will be reported.

    Up to approximately 36 months

  • Number of Participants Received Non-Pharmacological Treatments

    The number of participants who received non-pharmacological treatments will be reported.

    Up to approximately 36 months

  • Number of Participants Received Non-Pharmacological Therapy

    The non-pharmacological therapy will be cognitive behavioural therapy. Number of participants who received non-pharmacological therapy will be reported.

    Up to approximately 36 months

Study Arms (1)

Participant With ADHD

The record available for ADHD participants in primary care-based electronic medical records in the CPRD database linked to secondary care based episodic claims data available in HES database will be assessed.

Other: No intervention

Interventions

This is a non-interventional study.

Participant With ADHD

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participant diagnosed with ADHD recorded between 01 January 2016 and 30 June 2018.

You may qualify if:

  • Age greater than or equal to (\>=) 18 years at the beginning of the patient observation period (that is 18-months prior to the adult ADHD diagnosis to ensure they would have been seen in adult health care services).
  • First record of an adult ADHD diagnosis between 01st January 2016 and 30th June 2018.
  • Data availability in the database at least during the 18-months before and after the index date.

You may not qualify if:

  • A participant will be excluded from the study if their CPRD linked to HES electronic medical record data includes:
  • Incomplete information for key demographics (that is, missing age or sex).
  • Clinical history of a diagnosis of ADHD during childhood or adolescence.
  • Prescription of a licensed adult ADHD medication (that is, methylphenidate, lisdexamfetamine, dexamfetamine, atomoxetine) during the pre-index period.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

IQVIA Ltd

London, N19JY, United Kingdom

Location

Related Links

MeSH Terms

Conditions

Attention Deficit Disorder with Hyperactivity

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental Disorders

Study Officials

  • Study Director

    Takeda

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 25, 2021

First Posted

November 30, 2021

Study Start

December 1, 2021

Primary Completion

March 31, 2022

Study Completion

March 31, 2022

Last Updated

July 12, 2022

Record last verified: 2022-07

Data Sharing

IPD Sharing
Will share

Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Access Criteria
IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/ For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.
More information

Locations