If this is close to home

This page includes language about advanced illness, prognosis, or palliative care, because that is how the trial's eligibility criteria are written. Seeing it set out plainly can land hard, whether it is about you or about someone you are caring for. You do not have to be at a crisis point to talk to someone.

  • Griefline — grief and loss counselling, 9am to 6pm weekdays and midday to 6pm weekends (AEST/AEDT): 1300 845 745
  • Carer Gateway — practical and emotional support if you are caring for someone, 8am to 5pm weekdays: 1800 422 737
  • Canteen — for 12 to 25 year olds affected by cancer, their own or a family member's: 1800 945 215
  • Palliative Care Australia — directory of palliative care services near you: palliativecare.org.au
  • Lifeline — 24/7, for any kind of distress, at any hour the services above are closed: 13 11 14

Palliative care is not the same as giving up on treatment, and it is not only for the last weeks of life. It is symptom and comfort care that can run alongside active treatment, including a clinical trial.

Outside Australia? The numbers above are Australian and will not work from overseas. Find a Helpline is a free directory of support and crisis lines in over 130 countries, run by ThroughLine with the International Association for Suicide Prevention.

Voxsanity is not a counselling or medical service, and nothing on this page is medical advice. More Australian services are listed on our support lines page.

Phase 3 study

Recruiting Phase 3

Sources: ClinicalTrials.gov Checked: 11 October 2026 Not medical advice

This trial at a glance

Status Recruiting
Phase Phase 3
Sponsor Ansun Biopharma, Inc.
Registry number NCT03808922
Started 23 May 2019 Today 16 October 2026 Estimated completion 1 September 2028

Where this trial is running

Trial sites and the status recorded for each
SiteCityState or countryStatus at this site
Westmead Hospital Sydney NSW Terminated

voxsanity.com.au · trial sites from public registries · registry record synced 11 October 2026 · not medical advice

Who can join

Age child, adult, older adult
Sex Anyone, regardless of sex
Healthy volunteers Not accepted
Enrolment target 274

The official eligibility criteria

Registry text, reproduced exactly. These are the words the trial's sponsor published on ClinicalTrials.gov. They have not been edited, shortened or rewritten, and they are written for researchers rather than for patients.

Inclusion Criteria:

1. At the time of randomization, requires supplemental oxygen ≥2 LPM due to hypoxemia.

2. Immunocompromised, as defined by one or more of the following:

* Received an autologous or allogeneic hematopoietic stem cell transplantation (HSCT) at any time in the past

* Received a solid organ transplant at any time in the past

* Has been or is currently being treated with chemotherapy for hematologic malignancies (e.g., leukemia, myeloma, lymphoma) and/or solid tumor malignancies (e.g., lung, breast, brain cancer) at any time in the past

* Has an immunodeficiency due to congenital abnormality (only applicable to subjects age \< 18 years old) or pre-term birth (only applicable to subjects age ≤ 2 years old)

3. Has, within 3 days prior to randomization, a confirmed LRTI with a sialic acid dependent respiratory virus

4. If female, subject must meet one of the following conditions:

* Not be of childbearing potential or

* Be of childbearing potential and have a negative urine/serum pregnancy test and agrees to practice an acceptable method of contraception

5. Non-vasectomized males are required to practice effective birth control methods

6. Capable of understanding and complying with procedures as outlined in the protocol

7. Provides signed informed consent prior to the initiation of any screening or study-specific procedures

For COVID-19 sub study:

1. Be ≥18 years of age

2. Provide adequate medical history to permit accurate stratification (but health status may be healthy, high-risk conditions, or immunocompromised).

3. Prior to SARS CoV 2 infection, has the ability to carry out self-care activities of daily living (basic ADL)

4. Have lower respiratory tract infection (LRTI) confirmed by CT imaging, with or without contrast, to involve at least 2 lobes of the lung.

5. Has laboratory-confirmation of the presence of SARS CoV 2 in the respiratory tract by at least one of the following samples

6. Satisfy inclusion criteria #1, 4, 5, 6, 7 of the main study

Exclusion Criteria:

1. Subjects may not be on hospice care or, in the opinion of the investigator, have a low chance of survival during the first 10 days of treatment

2. Subjects with Alanine Aminotransferase (ALT), Aspartate Aminotransferase (AST), or Alkaline Phosphatase (ALP) ≥3x ULN and Total Bilirubin (TBILI) ≥2x ULN Note: Subjects with ALT/AST/ALP ≥ 3x ULN AND TB ≥2x ULN that have been chronically stable (for \>1 year on more than one assessments) due to known liver pathology including malignancy (primary or metastasis), chronic medications, transplantation, or chronic infection will not be excluded

3. Female subjects breastfeeding or planning to breastfeed at any time through 30 days after the last dose of study drug

4. Subjects taking any other investigational drug used to treat pulmonary infection.

5. Psychiatric or cognitive illness or recreational drug/alcohol use that, in the opinion of the principal investigator, would affect subject safety and/or compliance

6. Subjects with known hypersensitivity to DAS181 and/or any of its components

7. Subjects with severe sepsis due to either their baseline SAD-RV infection or a concurrent viral, bacterial, or fungal infection and meet at least one of the following criteria:

* Has evidence of vital organ failure outside of the lung (e.g., liver, kidney)

* Requires vasopressors to maintain blood pressure

For COVID-19 sub study:

1. Subjects requiring invasive mechanical, Bi-PAP or CPAP ventilation at randomization.

2. Subjects receiving any other investigational or empiric treatment for SARS-2-CoV (either as part of a clinical trial or under emergency approval (approved agents for the management of symptoms, e.g., fever, are permitted).

3. Subjects who are known HIV-positive (and not undetectable at most recent HIV RNA assessment)

4. Subjects who are currently taking immunomodulating biologics (e.g, interferons, interleukin)

5. Subjects with severe sepsis due to either their SARS-CoV-2 infection or a concurrent viral, bacterial, or fungal infection and meeting at least one of the following criteria:

* Have evidence of vital organ failure outside of the lung (e.g., liver, kidney)

* Require vasopressors to maintain blood pressure

6. Subjects meeting exclusion criteria #2, 3, 5 and 6 of the main study

Dates on the record

Started 23 May 2019
Estimated completion 1 September 2028
Registry last updated 23 June 2026
Checked by Voxsanity 11 October 2026

Results, publications and the official record

Sources and dates

  • ClinicalTrials.gov – the record this page reformats
  • ClinicalTrials.gov processing date: 23 June 2026.
  • This page last checked by Voxsanity: 11 October 2026.

Voxsanity reformats data from public registries into this layout. It does not edit, interpret or add to what the registry published.

Not medical advice.

Individual trial records are refreshed on a rolling basis rather than all at once, so a record may be up to several weeks old. Each trial page and trial card shows the date its own record was last synced. Where a record has lagged, its status, sites and enrolment can differ from the current registry state in either direction, so check the registry link on the trial page before acting on them.

Letter for your doctor

A one-page summary of this trial to print or email to your GP. It carries the registry's own record of the trial and its eligibility criteria, and nothing Voxsanity has written about whether it suits you.