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Operational Research for Cryptococcal Antigen Screening

Operational Research for Cryptococcal Antigen Screening to Improve ART Survival

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01535469
Acronym
ORCAS
Enrollment
3049
Registered
2012-02-17
Start date
2012-07-01
Completion date
2015-06-30
Last updated
2020-06-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cryptococcal Meningitis, Cryptococcosis, Cryptococcus Neoformans

Keywords

cryptococcal meningitis, hiv, aids, implementation science, stepped wedge design, retention-in-care

Brief summary

This will be a stepped wedge randomized trial design to evaluate the implementation of cryptococcal antigen (CRAG) screening and preemptive anti-fungal therapy of HIV-infected persons entering antiretroviral therapy (ART) outpatient treatment in Uganda. Those who are ART eligible with a CD4≤100 cells/mcL will have a serum/plasma CRAG performed by lateral flow assay. Those who are CRAG-positive and asymptomatic will be treated with high dose fluconazole. After 6 months survival with retention-in-care will be compared between those who are CRAG+ and CRAG negative

Interventions

DRUGFluconazole

Fluconazole 800mg orally daily for 2 weeks, then 400mg daily for 8 weeks

Sponsors

Infectious Diseases Institute, Uganda
CollaboratorOTHER
Makerere University
CollaboratorOTHER
Centers for Disease Control and Prevention
CollaboratorFED
University of Minnesota
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
14 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* HIV-1 infection * CD4≤100 cells/mcL * Cryptococcal antigen (CRAG) positive * age \>14 years

Exclusion criteria

* Suspected Cryptococcal meningitis * Prior known history of cryptococcal meningitis * currently receiving HIV antiretroviral therapy * Allergy to any azole antifungal medication * Persons with known serious hepatic co-morbidities, transaminitis, or clinical jaundice who should not receive fluconazole in the opinion of the study investigator. * Current known pregnancy

Design outcomes

Primary

MeasureTime frameDescription
Retention in care6-month1. before/after CRAG screening implementation (All persons) 2. CRAG positive persons treated with high-dose fluconazole as compared to 6-month survival of CRAG negative persons who are eligible for antiretroviral therapy.

Secondary

MeasureTime frameDescription
Cryptococcal meningitis-free survival time6-monthCryptococcal meningitis-free survival time in those who are asymptomatic CRAG positive and treated with fluconazole compared to CRAG-negative persons with CD4\<100 cells/mcL
Survival Time6-monthSurvival time among CRAG+ vs. CRAG negative persons with CD4\<100 cells/mcL.
Uptake of CRAG screening and preemptive treatmentbaseline
Time from CRAG+ test to receipt of fluconazole therapyDays from CD4 testing
All-cause discontinuation of fluconazole6-monthNumber of participants with early discontinuation of fluconazole for any reason (e.g. non-compliance, adverse event)
Percentage of participants with symptomatic cryptococcal meningitisbaseline
Risk factors for symptomatic cryptococcal meningitisbaseline

Countries

Uganda

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026