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CompletedNCT04031833EnACTUpdated Mar 31, 2023

Encochleated Oral Amphotericin for Cryptococcal Meningitis Trial (EnACT)

A Phase 1/2 interventional study of MAT2203 and Amphotericin B in Cryptococcal Meningitis, sponsored by Matinas BioPharma Nanotechnologies, Inc.. Completed at 1 site in Uganda. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-03-31.

Sponsored by Matinas BioPharma Nanotechnologies, Inc. · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Nov 2022, 3 years 11 months ago, and no results have been posted to the registry.
Phase
Phase 1/2
Study type
Interventional
Enrollment
178
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study is designed as two sequential trials. The first is a phase I open label trial to evaluate the safety and tolerability of MAT2203. The maximal tolerated and non-toxic daily dose,will then be moved forward into a multi-day safety trial. The Phase II trial will investigate toxicity and early fungicidal activity (EFA) of MAT2203 with flucytosine.

Read the detailed description

Cryptococcal meningitis has emerged as one of the most frequent and deadly opportunistic infections in HIV patients. Historically, amphotericin B (AMB) has been considered the "gold standard" in antifungal treatments due to its broad spectrum of activity and lack of emergence of resistance. However, the use of AMB is limited by side effects, including nephrotoxicity, anemia, and infusion-related reactions. MAT2203 or encochleated oral amphotericin B (cAMB) is a lipid nano-crystal formulation designed for targeted oral delivery of the antifungal drug AMB for treatment of fungal and parasitic infections.

02

Conditions studied

  • Cryptococcal Meningitis
03

In context

Meningitis, Cryptococcal

54 studies on the registry are indexed under Meningitis, Cryptococcal; 6 are open to participants now.

This study's enrollment of 178 is above the median of 143 across 35 interventional studies indexed under Meningitis, Cryptococcal.

Browse Meningitis, Cryptococcal studies →

Lead sponsor

Matinas BioPharma Nanotechnologies, Inc. is the lead sponsor of 8 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Phase 1:

    • Age >18 years
    • Calculated >70 mL/min/1.73 m2 (measured within 3 months)
    • Written

Phase 2:

  • Cryptococcal meningitis diagnosed by CSF cryptococcal antigen (CRAG)
  • Ability and willingness to provide informed consent
  • Willing to receive protocol-specified lumbar punctures

Exclusion criteria

Exclusion Criteria:

  • Phase 1:

    • Symptomatic Current illness
    • Known significant, untreated health problem
    • Inability to take enteral medicine
    • Pregnant or breast feeding
    • Receiving amphotericin B therapy in past 90 days
  • Phase 2:

    • Presenting Glasgow Coma Scale (GCS) \< 15
    • Received 3 or more doses of IV amphotericin therapy within last 30 days
    • Inability to take enteral (oral or nasogastric) medicine
    • Cannot or unlikely to attend regular clinic visits
    • Pregnancy or breastfeeding
    • Receiving chemotherapy or
    • Suspected Paradoxical immune reconstitution inflammatory syndrome (IRIS)
    • Recent initiation of therapy or ART class switch (within 2 weeks)
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
178 participants (actual)

Study arms

  • Experimental
    Phase 1a single ascending dose study

    Phase IA will consist of a single ascending dose study in 9 participants to test three doses to determine the max tolerated dose.

    Drug: MAT2203

  • Experimental
    Phase 1b multiple day dosing

    9 subjects will receive the Phase Ia 100% tolerated MAT2203 dose for 7 days.

    Drug: MAT2203

  • Experimental
    Phase 2 safety and tolerability

    Safety, tolerability, and microbiologic efficacy of MAT2203 among HIV-infected patients with cryptococcal meningitis compared with standard IV AMB.

    Drug: MAT2203 · Drug: Amphotericin B

Interventions

  • Encochleated amphotericin B

    Also known as: oral amphotericin B

  • Intravenous amphotericin B

06

What researchers measure

Primary outcomes

  1. Highest dose tolerated without inducing vomiting

    Proportion of cAMB daily dose received and tolerated without vomiting within 30 minutes.

    Time frame: 7 days

  2. Evidence of fungicidal activity

    CSF early fungicidal activity (EFA) during 2-week induction therapy

    Time frame: 2 weeks

07

Study locations

1 site
  • Infectious Disease Institute
    Kampala, Uganda
08

References and documents

Publications

  • Skipper CP, Atukunda M, Stadelman A, Engen NW, Bangdiwala AS, Hullsiek KH, Abassi M, Rhein J, Nicol MR, Laker E, Williams DA, Mannino R, Matkovits T, Meya DB, Boulware DR. Phase I EnACT Trial of the Safety and Tolerability of a Novel Oral Formulation of Amphotericin B. Antimicrob Agents Chemother. 2020 Sep 21;64(10):e00838-20. doi: 10.1128/AAC.00838-20. Print 2020 Sep 21. PubMed 32747357 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2019 to primary completion in Nov 2022, 36 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 22, 2019
First posted
Jul 24, 2019
StartActual
Oct 24, 2019
Primary completionActual
Nov 14, 2022
CompletionActual
Feb 15, 2023
Last update
Mar 31, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 31, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04031833
Lead sponsor
Matinas BioPharma Nanotechnologies, Inc.
Responsible party
Sponsor
First posted
Jul 24, 2019
Start date
Oct 24, 2019
Primary completion
Nov 14, 2022
Completion
Feb 15, 2023
Last update
Mar 31, 2023

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Encochleated Amphotericin B

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