Histoplasmosis Induction and Consolidation Therapy Factorial Randomized Clinical Trial (Histo-FACT)

NCT ID: NCT07261150

Last Updated: 2025-12-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

664 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-02-01

Study Completion Date

2030-12-31

Brief Summary

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The purpose of the study is threefold:

1. Assess the safety and efficacy of a single high-dose intravenous (LAmB 10mg/kg) compared to the SOC daily dosing (3mg/kg) of the same medication for induction therapy in moderate to severe histoplasmosis.
2. Assess the safety and efficacy of oral posaconazole 300mg delayed-release tablets three times daily for two days then once daily for consolidation therapy compared to SOC oral itraconazole 200 mg capsules three times daily for three days then twice daily in moderate to severe histoplasmosis
3. Assess the safety and efficacy of 6 months of consolidation therapy compared to the SOC 12 months of consolidation therapy in persons with HIV on appropriate antiretroviral therapy.

Detailed Description

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Conditions

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Histoplasmosis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Induction Therapy - Experimental

Single high-dose (10mgkg) of LAmB B

Group Type EXPERIMENTAL

LAmB B

Intervention Type DRUG

intravenous liposomal amphotericin B (10mg/kg)

Induction Therapy - Standard of Care

SOC daily standard dose (3mg/kg) LAmB

Group Type ACTIVE_COMPARATOR

World Health Organization (WHO)-recommended SOC

Intervention Type DRUG

daily intravenous liposomal amphotericin B 3mg/kg, for 2 weeks or at least 7 days if felt stable for discharge per the clinician

Consolidation Therapy - Experimental

posaconazole

Group Type EXPERIMENTAL

Posaconazole

Intervention Type DRUG

Posaconazole delayed-release tabs, 300mg twice daily on day 1 then once daily

Consolidation Therapy - Standard of Care

SOC itraconazole

Group Type ACTIVE_COMPARATOR

WHO-recommended SOC Itraconazole

Intervention Type DRUG

200mg capsules three times daily x 3 days then twice daily

Total Consolidation - Experimental

6 months total (e.g., 0 additional months) of itraconazole or posaconazole based on assignment from Aim 2.

Group Type EXPERIMENTAL

Posaconazole

Intervention Type DRUG

Posaconazole delayed-release tabs, 300mg twice daily on day 1 then once daily

WHO-recommended SOC Itraconazole

Intervention Type DRUG

200mg capsules three times daily x 3 days then twice daily

Total Consolidation - Standard of Care

12 months total (e.g., 6 additional months) of itraconazole or posaconazole based on assignment from Aim 2

Group Type ACTIVE_COMPARATOR

Posaconazole

Intervention Type DRUG

Posaconazole delayed-release tabs, 300mg twice daily on day 1 then once daily

WHO-recommended SOC Itraconazole

Intervention Type DRUG

200mg capsules three times daily x 3 days then twice daily

Interventions

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LAmB B

intravenous liposomal amphotericin B (10mg/kg)

Intervention Type DRUG

Posaconazole

Posaconazole delayed-release tabs, 300mg twice daily on day 1 then once daily

Intervention Type DRUG

World Health Organization (WHO)-recommended SOC

daily intravenous liposomal amphotericin B 3mg/kg, for 2 weeks or at least 7 days if felt stable for discharge per the clinician

Intervention Type DRUG

WHO-recommended SOC Itraconazole

200mg capsules three times daily x 3 days then twice daily

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age ≥18 years
* Hospitalized with suspected histoplasmosis b
* Diagnosis of confirmed or probable histoplasmosis (via positive Histoplasma antigen test, culture, histopathology or microscopy)
* Provision of Informed Consent by participant or surrogate c

Exclusion Criteria

* Previous diagnosis of histoplasmosis
* Pregnant persons (all persons who could potentially be pregnant will have a pregnancy test prior to enrollment, and if negative, must agree to contraception for the duration of the study)
* Breastfeeding and unable to stop for the duration of the study
* Renal impairment (serum creatinine or blood urea nitrogen (BUN) \>2.0x upper limit of normal)
* Allergy or contraindication to a study medicine
* More than one dose of an amphotericin product in the prior 7 days
* Suspected central nervous system involvement of histoplasmosis
* Likely to die in the next 48 hours in the judgment of the investigator
* Unlikely to follow up for the duration of the study in the judgement of the investigator
* Significant drug-drug interaction with itraconazole or posaconazole (such as rifampin in persons with TB)
* Current diagnosis of cryptococcosis or leishmaniasis
* QTc interval consistently \>450 milliseconds
* Prisoners
* Unable to take oral medications
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Federal University of Health Science of Porto Alegre

OTHER

Sponsor Role collaborator

University of Minnesota

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Nathan Bahr, MD

Role: PRINCIPAL_INVESTIGATOR

University of Minnesota

Locations

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University of Minnesota

Minneapolis, Minnesota, United States

Site Status

Universidade Federal de Ciências da Saúde de Porto Alegre

Porto Alegre, , Brazil

Site Status

Countries

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United States Brazil

Central Contacts

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Nathan Bahr, MD

Role: CONTACT

612-624-9996

Facility Contacts

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Nathan Bahr

Role: primary

Alessandro Pasqualotto

Role: primary

Other Identifiers

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IDIM-2025-33491

Identifier Type: -

Identifier Source: org_study_id