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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 3INTERVENTIONAL

Efficacy and Safety of Trimodulin (BT588) in Subjects With Severe Community-acquired Pneumonia (sCAP)

A Randomized, Placebo-controlled, Double-blind, Multi-center, Phase III Trial to Assess the Efficacy and Safety of Trimodulin (BT588) in Adult Hospitalized Subjects With Severe Community-acquired Pneumonia (sCAP)

Efficacy and Safety of Trimodulin (BT588) in Subjects With Severe Community-acquired Pneumonia (sCAP) (NCT05722938) is a Phase 3 interventional studying Community-acquired Pneumonia, sponsored by Biotest. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The main objective of the trial is to assess the efficacy and safety of trimodulin as adjunctive treatment to standard of care (SoC) compared to placebo plus SoC in adult hospitalized subjects with sCAP on invasive mechanical ventilation (IMV). Other objectives are to determine detailed pharmacokinetic (PK) properties of trimodulin in a PK substudy and to determine its pharmacodynamic (PD) properties.

What Stage of Research Is This?

Phase 3 trials confirm efficacy and safety in large patient groups (often 300–3,000+) and form the evidence base for an FDA approval submission. For Community-acquired Pneumonia, Phase 3 studies typically randomize participants between the investigational treatment and either a placebo or current standard of care. A successful Phase 3 result is the threshold most treatments need to clear before regulatory approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

A target enrollment of 590 participants makes this a sizable late-stage trial. Studies in this range typically have enough power to detect clinically meaningful differences from a comparator and to characterize less-common side effects.

Who May Be Eligible (Plain English)

Main Who May Qualify: 1. Written willing to sign a consent form. 2. Hospitalized, adult (≥ 18 years of age) subject. 3. Signs of inflammation based on C-reactive protein threshold level. 4. Diagnosis of active community-acquired pneumonia (CAP) before hospital-admission or within 48 hours after admission. 5. Radiological (or other imaging technology) evidence consistent with active pneumonia. 6. Acute respiratory failure requiring IMV. Main Who Should NOT Join This Trial: 1. For an incapacitated subject: any indication that the subject's presumed will would be against inclusion in the trial. 2. Pregnant or lactating women. 3. Subjects of childbearing potential not willing to use reliable contraceptive measures during the trial and for 15 weeks after the last IMP treatment. 4. Subjects on ECMO at start of IMP treatment. 5. Suspected hospital-acquired pneumonia (HAP) including ventilator-associated pneumonia (VAP). 6. Subjects discharged from hospital within the previous 14 days. 7. Defined neutrophil counts up to one calendar day prior to start of IMP treatment. 8. Defined platelet counts up to one calendar day prior to start of IMP treatment. 9. Defined hemoglobin within up to one calendar day prior to start of IMP treatment. 10. Pre-existing hemolytic disease. 11. Thromboembolic events (TEEs) caused by other reasons than the current sCAP within 3 months before start of IMP treatment unless the risk for further TEEs can be adequately managed with standard prophylaxis or treatment. 12. Severe renal impairment prior to start of IMP treatment. 13. End-stage renal disease (ESRD) or known primary focal segmental glomerulosclerosis (FSGS). 14. Pre-existing severe lung diseases concomitant to current sCAP (e.g. active tuberculosis, active lung cancer). 15. Pre-existing decompensated heart failure. 16. Pre-existing severe hepatic cirrhosis (Child Pugh score ≥ 10 points), or severe hepatic impairment (Child Pugh score ≥ 10 points), or hepatocellular carcinoma. ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Main Inclusion Criteria: 1. Written informed consent. 2. Hospitalized, adult (≥ 18 years of age) subject. 3. Signs of inflammation based on C-reactive protein threshold level. 4. Diagnosis of active community-acquired pneumonia (CAP) before hospital-admission or within 48 hours after admission. 5. Radiological (or other imaging technology) evidence consistent with active pneumonia. 6. Acute respiratory failure requiring IMV. Main Exclusion Criteria: 1. For an incapacitated subject: any indication that the subject's presumed will would be against inclusion in the trial. 2. Pregnant or lactating women. 3. Subjects of childbearing potential not willing to use reliable contraceptive measures during the trial and for 15 weeks after the last IMP treatment. 4. Subjects on ECMO at start of IMP treatment. 5. Suspected hospital-acquired pneumonia (HAP) including ventilator-associated pneumonia (VAP). 6. Subjects discharged from hospital within the previous 14 days. 7. Defined neutrophil counts up to one calendar day prior to start of IMP treatment. 8. Defined platelet counts up to one calendar day prior to start of IMP treatment. 9. Defined hemoglobin within up to one calendar day prior to start of IMP treatment. 10. Pre-existing hemolytic disease. 11. Thromboembolic events (TEEs) caused by other reasons than the current sCAP within 3 months before start of IMP treatment unless the risk for further TEEs can be adequately managed with standard prophylaxis or treatment. 12. Severe renal impairment prior to start of IMP treatment. 13. End-stage renal disease (ESRD) or known primary focal segmental glomerulosclerosis (FSGS). 14. Pre-existing severe lung diseases concomitant to current sCAP (e.g. active tuberculosis, active lung cancer). 15. Pre-existing decompensated heart failure. 16. Pre-existing severe hepatic cirrhosis (Child Pugh score ≥ 10 points), or severe hepatic impairment (Child Pugh score ≥ 10 points), or hepatocellular carcinoma. 17. Known intolerance to proteins of human origin or known allergic reactions to components of trimodulin / placebo. 18. Selective immunoglobulin A (IgA) deficiency with known antibodies to IgA. 19. Life expectancy of less than 90 days, according to the investigator's clinical judgment, because of medical conditions related neither to sCAP nor to sCAP-associated septic conditions. 20. Morbid obesity with high body mass index (BMI) ≥ 40 kg/m2, or malnutrition with low BMI \< 16 kg/m2. 21. Treatment with polyvalent immunoglobulin preparations during the last 21 days before start of IMP treatment. 22. Known treatment with predefined medications, during the last 2 days before start of IMP treatment. 23. Hematopoietic stem cell transplantation or previous lung transplantation. 24. Treatment with investigational medications/procedures not according to SoC of the trial site, due to participation in another interventional clinical trial within 30 days before start of IMP treatment, or previous treatment with IMP in this clinical trial.

Treatments Being Tested

DRUG

Trimodulin

IMP will be administered via IV infusion on 5 consecutive days

DRUG

Placebo (human albumin 1%)

IMP will be administered via IV infusion on 5 consecutive days

Locations (20)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Pulmonary Associates of Mobile, P.C.
Mobile, Alabama, United States
University of California San Francisco-Fresno
Fresno, California, United States
UC Davis Health
Sacramento, California, United States
Augusta University
Augusta, Georgia, United States
Sparrow Clinical Research Institute
Lansing, Michigan, United States
William Beaumont Hospital
Royal Oak, Michigan, United States
University of Missouri Clinical Research Center
Columbia, Missouri, United States
Hannibal Clinic
Hannibal, Missouri, United States
Mercury Street Medical Group
Butte, Montana, United States
St. Michael's Medical Center
Newark, New Jersey, United States
Buffalo VA Medical Center
Buffalo, New York, United States
Lenox Hill Hospital
New York, New York, United States
Wake Forest Baptist
Winston-Salem, North Carolina, United States
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, United States
Jefferson University Hospitals
Philadelphia, Pennsylvania, United States
Vanderbilt University Medical Center
Nashville, Tennessee, United States
Medical City Fort Worth
Fort Worth, Texas, United States
Houston Methodist Hospital
Houston, Texas, United States
University of Utah
Salt Lake City, Utah, United States
Sanatorio Parque S.A. Privado
San Vicente, Córdoba Province, Argentina

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT05722938), the sponsor (Biotest), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT05722938 clinical trial studying?

The main objective of the trial is to assess the efficacy and safety of trimodulin as adjunctive treatment to standard of care (SoC) compared to placebo plus SoC in adult hospitalized subjects with sCAP on invasive mechanical ventilation (IMV). Other objectives are to determine detailed pharmacokinetic (PK) properties of trimodulin in a PK substudy and to determine its pharmacodynamic (PD) properties. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT05722938?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT05722938?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT05722938. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT05722938. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.