Acute Treatment and Long-term Assessment of Adult Infectious Meningitis
ATLAS-I
Prospective Clinical Registry of Acute Treatment and Long-term Assessment of Adults Meningitis
1 other identifier
observational
624
1 country
6
Brief Summary
Prospective, multicenter, observational clinical registry of adult patients with acute infectious meningitis across approximately 30 public and private hospitals in Brazil. The study will include adults, 18 years old and older, with suspected acute infectious meningitis. Data will be collected during hospitalization and post-discharge to evaluate clinical management, treatment and short and long-term outcomes. The study aims to generate real-world evidence on current practices and outcomes to support improvements in national care protocols.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Mar 2026
Shorter than P25 for all trials
6 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 3, 2025
CompletedFirst Posted
Study publicly available on registry
June 18, 2025
CompletedStudy Start
First participant enrolled
March 30, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 1, 2027
August 13, 2026
May 1, 2026
8 months
June 3, 2025
August 11, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Mortality
The primary outcome is the incidence of all-cause death
Day 28
Secondary Outcomes (16)
Re-hospitalization
Day 28
Length of hospital stay
Day 28
Invasive ventilatory support
Day 28
Adverse Events
Day 28
First dose of antibiotic therapy
Day 28
- +11 more secondary outcomes
Eligibility Criteria
Adult, ≥ 18 years old, suspect acute meningitis infection
You may qualify if:
- Both sexes, aged ≥ 18 years, meeting one or more of the criteria (A, B or C) below:
- \> Criterion A: Clinical presentation compatible with a suspected case of meningitis or meningococcal disease:
- Fever ≥ 37.8 °C (axillary) associated with at least two of the following:
- Severe headache
- Vomiting
- Altered level of consciousness (confusion, drowsiness, irritability)
- Photophobia
- Seizure OR Fever associated with one of the classic signs of meningeal irritation (neck stiffness, Kernig or Brudzinski signs) OR Sudden-onset fever with petechial rash or hemorrhagic suffusions
- Criterion B: Cerebrospinal fluid with leukocytes ≥ 5 cells/mm³ (corrected for red blood cell count at 1:500)
- Criterion C: Confirmed etiological diagnosis of meningitis or meningococcal disease with no more than 48 hours between pathogen confirmation and signature of the informed consent form by the participant or legal representative.
You may not qualify if:
- Refusal to provide consent for the study.
- Presence of a neurological condition, other than meningitis, that accounts for the current clinical picture.
- Clinical, laboratory or radiological evidence of an alternative infectious focus that accounts for the current clinical picture.
- Etiological diagnosis of meningitis or meningococcal disease confirmed more than 48 hours earlier.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Hospital Israelita Albert Einsteinlead
- Ministry of Health, Brazilcollaborator
Study Sites (6)
Hospital Universitário Walter Cantídio
Fortaleza, Ceará, Brazil
Hospital São Vicente de Paulo
Passo Fundo, Rio Grande do Sul, 99010-080, Brazil
Hospitalar Moinhos de Vento
Porto Alegre, Rio Grande do Sul, 90560-032, Brazil
Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto - USP
Ribeirão Preto, São Paulo, 14051-140, Brazil
Hospital Municipal Dr Moysés Deutsch - M'Boi Mirim
São Paulo, 04905020, Brazil
Hospital Santa Marcelina
São Paulo, 08270-070, Brazil
Biospecimen
cerebrospinal fluid, blood (serum)
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Henrique A Fonseca, PhD
Hospital Israelita Albert Einstein
- PRINCIPAL INVESTIGATOR
Anna M Gomes, MD
Hospital Israelita Albert Einstein
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 6 Months
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 3, 2025
First Posted
June 18, 2025
Study Start
March 30, 2026
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
February 1, 2027
Last Updated
August 13, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will not share