ClinicalTrials.gg
RecruitingNCT07759934Updated Aug 12, 2026

ASK0912 Versus Polymyxin B for Injection in Adults With Hospital-Acquired or Ventilator-Associated Bacterial Pneumonia

A Phase 2 interventional study of ASK0912 for Injection and ASK0912 for Injection in Ventilator-associated Bacterial Pneumonia (VABP) and Hospital-acquired Bacterial Pneumonia (HABP), sponsored by Jiangsu Aosaikang Pharmaceutical Co., Ltd.. Recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-12.

Sponsored by Jiangsu Aosaikang Pharmaceutical Co., Ltd. (part of Beijing Aosaikang Pharmaceutical Co., Ltd.) · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Mar 2026, registered Aug 2026).
  • Started Mar 2026; still recruiting 7 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 10 studies in Pneumonia, Bacterial with a site in China — 6 open to participants now, 6 under way, 2 of them phase 3. Pneumonia, Bacterial · China.

Started
2026
with 2 others
Phase 2
3 of 10
2 open now
Registered
10th of 10
by date
Lead sponsor
1 of 10
Jiangsu Aosaikang Pharmaceutical Co., Ltd.

Among the 10 studies in Pneumonia, Bacterial with a site in China, this one is one of 3 that started in 2026, is one of 3 in phase 2, and was the 10th registered.

By phase

10 studies; the count open now beside each. This study's row is marked.

Phase 35 · 2 open
Phase 2this study3 · 2 open
Observational2 · 2 open

By the year they started

First in 2011; this study’s year is marked. 3 started in 2026.

Size and results

Median enrollment 123 across the 8 interventional studies, 82 across the 2 observational. Of the 4 that completed or were terminated, 2 (50%) have results posted.

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02

Study summary

This is a randomized, active-controlled, multicenter phase II clinical trial. The study aims to evaluate the efficacy, safety and tolerability of two different dosing regimens of ASK0912 for Injection compared with Polymyxin B Sulfate for Injection in adult patients with hospital-acquired bacterial pneumonia (HABP) or ventilator-associated bacterial pneumonia (VABP) caused by multidrug-resistant or carbapenem-resistant Gram-negative bacilli. Eligible subjects will be randomly assigned to one of three treatment groups: ASK0912 Regimen 1, ASK0912 Regimen 2, or Polymyxin B Sulfate active comparator group. Subjects will receive assigned intravenous study treatment for 7 to 14 days. The primary efficacy endpoints include clinical cure rate at the Test of Cure (TOC) visit and Day 28 all-cause mortality in the modified intent-to-treat (MITT) population. Safety assessments will be conducted throughout the study to monitor adverse events, laboratory parameters and other safety indicators.

03

Conditions studied

  • Ventilator-associated Bacterial Pneumonia (VABP)
  • Hospital-acquired Bacterial Pneumonia (HABP)

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Keywords

  • Hospital-Acquired Bacterial Pneumonia
  • Ventilator-Associated Bacterial Pneumonia
  • Polymyxin B
  • ASK0912
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

  • 1. Aged 18-75 years on the day of signature;
  • 2. Require intravenous antibiotic therapy for hospital-acquired bacterial pneumonia (HABP)/ventilator-associated bacterial pneumonia (VABP).
  • 3. At least one clinical sign or symptom of HABP/VABP.
  • 4. At least one laboratory abnormality of HABP/VABP.
  • 5. Chest imaging at screening demonstrating new or progressive infiltrates consistent with pneumonia.
  • 6. APACHE II score ≤ 30.
  • 7. Appropriate lower respiratory tract specimen obtained at screening for Gram stain and bacterial culture.
  • 8. Subjects receiving HABP/VABP-active antibiotics within 72h pre-enrollment may enroll if ≤24h therapy, or ≥48h with persistent/worsening HABP/VABP signs/symptoms at screening.
  • 9. Women of must have a negative pregnancy test (serum or urine) prior to enrollment.
  • 10. Male subjects must use highly effective throughout the study period.

Exclusion criteria

Exclusion Criteria:

  • 1. Subjects with known allergy to polymyxins or carbapenems, regardless of the severity of the reaction; or subjects with a severe reaction to any other β-lactam agent.
  • 2. Subjects who have received any product within 3 months prior to enrollment, or subjects who have previously participated in this clinical study.
  • 3. Has a baseline lower respiratory tract specimen Gram stain that shows the presence of Gram-positive cocci only.
  • 4. Known or suspected pneumonia caused by Mycoplasma, Chlamydia, Legionella, fungi, parasites, viruses, or chemical etiologies (including gastric aspiration, inhalation injury).Additionally, subjects with confirmed or suspected community-acquired bacterial pneumonia (CABP) are excluded.
  • 5. Presence of underlying pulmonary conditions that may interfere with efficacy assessment, such as pulmonary tuberculosis, lung abscess, empyema, obstructive pneumonia, granulomatous disease, recent pulmonary embolism, moderate-to-severe bronchiectasis, severe , bronchial obstruction, idiopathic interstitial pneumonia, etc.
  • 6. Presence of other active infections that may interfere with efficacy assessment, or bacterial infectious foci requiring concomitant treatment with antibacterial agents prohibited by the study protocol, such as invasive fungal infection, endocarditis, central nervous system infection (e.g., meningitis, brain abscess, post-shunt infection), septic arthritis requiring vancomycin, etc.
  • 7. Severe cardiac disorders, including severe arrhythmia, significant myocardial ischemia, congestive heart failure classified as Class III-IV.
  • 8. Subjects with liver cirrhosis classified as Class C.
  • 9. Subjects with documented immunodeficiency or impaired immune function, including infection, hematological , bone marrow transplantation, etc.; or subjects receiving therapy, including immunosuppressants, chemotherapeutic agents, drugs for prevention of transplant rejection, and (prednisone ≥ 20 mg/day for more than 14 days).
  • 10. Presence of any one of the following abnormalities: (AST) and/or alanine aminotransferase (ALT) > 5 × (ULN); AST and/or ALT > 3 × ULN accompanied by total > 1.5 × ULN; \< 80 mL/min (calculated using the Cockcroft-Gault formula); \< 1 × 10⁹/L; count \< 60 × 10⁹/L.
  • 11. Subjects with a history or evidence of severe renal disease, or receiving hemodialysis or peritoneal dialysis.
  • 12. Subjects presenting with shock.
  • 13. Subjects scheduled to undergo major surgery during the study period.
  • 14. Subjects with a known history of epilepsy or neuromuscular junction disorders such as myasthenia gravis.
  • 15. Subjects with any past or current disease, treatment, laboratory abnormality, or other condition that, in the investigator's opinion, may compromise the quality of study data or increase treatment risks during the study, e.g., subjects requiring valproic acid therapy during the study.
  • 16. Subjects with any psychiatric or psychological disorder judged by the investigator to potentially increase trial risks, impair protocol compliance, or hinder study completion, such as recent (within the past 12 months) or active suicidal ideation/behavior.
  • 17. Subjects judged by the investigator on clinical assessment to be at risk of death within the 7-14-day treatment phase despite adequate antibiotic therapy for pneumonia.
  • 18. Female subjects who are breastfeeding or plan to breastfeed prior to the end of the study.
  • 19. Any other conditions rendering the subject unsuitable for participation in this study as determined by the investigator.
Terms in these criteria, in plain language(18)

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.

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

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.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

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.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    ASK0912 Regimen 1

    0.75 mg/kg every 12 hours

    Drug: ASK0912 for Injection

  • Experimental
    ASK0912 Regimen 2

    0.5 mg/kg every 8 hours

    Drug: ASK0912 for Injection

  • Active comparator
    Polymyxin B Sulfate for Injection

    Loading dose: 2.0-2.5 mg/kg; maintenance dose: 1.25-1.5 mg/kg every 12 hours

    Drug: Polymyxin B Sulfate for Injection

Interventions

  • DrugASK0912 for Injection

    ASK0912 for injection administered at a dose of 0.75 mg/kg every 12 hours

  • DrugASK0912 for Injection

    ASK0912 for injection administered at a dose of 0.5 mg/kg every 8 hours

  • Polymyxin B Sulfate for Injection:Loading dose of 2.0-2.5 mg/kg; maintaining dose 1.25-1.5 mg/kg after 12 hours

06

What researchers measure

Primary outcomes

  1. Percentage of Participants Achieving Clinical Cure at Test of Cure (TOC) Visit in the Modified Intent to Treat (MITT) Population

    Clinical cure was defined as all pretherapy signs and symptoms of the index infection have resolved or returned to preinfection status with no evidence of resurgence AND no additional antibiotic therapy was required for the index infection. The percentage of participants achieving clinical cure at TOC visit in the MITT population is presented.

    Time frame: Up to approximately 28 days

  2. Percentage of Participants With All-cause Mortality(ACM) Through Day 28 in the Modified Intent to Treat (MITT) Population

    For each participant, survival status was assessed at Day 28 post-randomization and recorded on the electronic Case Report Form. The percentage of participants with all-cause mortality through Day 28 in the MITT population is presented.

    Time frame: Up to approximately 28 days

Secondary outcomes

  1. Clinical cure rate

    Clinical cure rate at the EOT visit in the MITT and micro-MITT populations

    Time frame: Up to approximately 14 days

  2. All-cause mortality

    All-cause mortality at Day 14 in the MITT population

    Time frame: 14 days post-randomization

  3. Microbiological success rate

    Microbiological success rate at EOT and TOC visits in the micro-MITT populations

    Time frame: 28 days post-randomization

  4. Composite clinical and microbiological cure rate

    Composite clinical and microbiological cure rate at EOT and TOC visits in the micro-MITT populations

    Time frame: 28 days post-randomization

  5. Early clinical response rate

    Clinical response rate at OTX1 visit in the ITT and MITT populations

    Time frame: Day 3 post-dose

07

Study locations

1 of 1 sites recruiting
  • Jiangsu AOSAIKANG Pharm
    Nanjing, Jiangsu 210000, China
    Recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Mar 2026 (actual). Primary completion is estimated for Oct 2027, 18 months after the start.

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

Registered
Aug 2, 2026
First posted
Aug 12, 2026
StartActual
Mar 25, 2026
Primary completionEst.
Oct 20, 2027
CompletionEst.
Dec 25, 2027
Last update
Aug 12, 2026
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 Aug 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07759934
Responsible party
Sponsor
First posted
Aug 12, 2026
Start date
Mar 25, 2026
Primary completion
Oct 20, 2027 (estimated)
Completion
Dec 25, 2027 (estimated)
Last update
Aug 12, 2026

Study contacts

Jiangsu Aosaikang Study Director
Contact
ctr-contact@ask-pharm.com
+86 02552169999

Oversight

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

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