NCT07115680

Brief Summary

It is unknown in which countries the clinical pharmacology studies published in leading specialized journals were conducted. The hypothesis is that studies in this specialty tend to be conducted and published by authors from a single country. This analysis aims to describe the number of collaborators and the countries in which they worked, using the Nature Index concept of "share."

Trial Health

87
On Track

Trial Health Score

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

Enrollment
503

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2025

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

August 4, 2025

Completed
7 days until next milestone

First Posted

Study publicly available on registry

August 11, 2025

Completed
1 month until next milestone

Study Start

First participant enrolled

September 15, 2025

Completed
2 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 4, 2025

Completed
26 days until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2025

Completed
Last Updated

December 19, 2025

Status Verified

December 1, 2025

Enrollment Period

2 months

First QC Date

August 4, 2025

Last Update Submit

December 12, 2025

Conditions

Keywords

Clinical pharmacology, studies on humans, recently published

Outcome Measures

Primary Outcomes (1)

  • countries where authors conducted their study

    The country of the principal authors and of all collaborators will be registered following Nature Index 'share' concept

    Articles of interest to be included from the June 2025 issue backwards until reaching 100 articles or until the January 2024 issue, whichever comes first

Study Arms (1)

Single-country studies

Multinational studies

Other: human participants, data or material

Interventions

Articles on human participants, data, or material published in top (as per JCR IF) clinical pharmacology journals linked to professional societies

Single-country studies

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All original research articles published in the six top clinical pharmacology hybrid journals

You may qualify if:

  • Articles on human participants, data or material. Original articles, short reports, research letters.

You may not qualify if:

  • In vitro studies, animal studies. Editorials, letters, commentaries, perspectives.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Health Research Institute Fundación Jiménez Díaz

Madrid, 28036, Spain

Location

Study Officials

  • Rafael Dal-Re, MD, PhD, MPH

    Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 4, 2025

First Posted

August 11, 2025

Study Start

September 15, 2025

Primary Completion

November 4, 2025

Study Completion

November 30, 2025

Last Updated

December 19, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will not share

All data to be used in this study are in the public domain.

Locations