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A Study to Evaluate LTI-01 in Patients With Infected, Non-draining Pleural Effusions

A Phase 2, Randomized, Placebo-controlled, Double-blind, Dose-ranging Study Evaluating LTI-01 (Single-chain Urokinase Plasminogen Activator, scuPA) in Patients With Infected, Non-draining Pleural Effusions

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04159831
Enrollment
44
Registered
2019-11-12
Start date
2020-09-26
Completion date
2022-07-28
Last updated
2023-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Pleural Effusion

Brief summary

The LTI-01-2001 study is a double-blind, placebo-controlled, Phase 2 study to evaluate LTI-01 (single-chain urokinase plasminogen activator, scuPA) in patients with infected, non-draining pleural effusions.

Interventions

DRUGLTI-01

single-chain urokinase plasminogen activator, scuPA

DRUGPlacebo

normal saline

Sponsors

Rein Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Male or female ≥ 18 years of age who provide written informed consent * Clinical presentation compatible with complicated parapneumonic pleural effusion (CPE), empyema or other type of pleural infection * Has pleural fluid requiring drainage as determined by chest ultrasonography or by chest CT, and which is either: * a) purulent; b) gram stain positive; c) culture positive; d) pH \< 7.2; or e) glucose \< 60 mg/dL (3.3 mmol/L) * Failure to adequately drain pleural fluid ≥ 3 hours post insertion of patent chest tube within the pleural space, as evidenced by one or more of the following criteria: * \> 2 cm depth of fluid by ultrasound or CT * \< 80% drainage from chest radiograph obtained prior to chest tube insertion. Key

Exclusion criteria

* Current pleural infection already treated with intrapleural fibrinolytic therapy * Evidence of ipsilateral fibrothorax (e.g. CT scan with \> 0.5 cm visceral pleural thickening) * History of multiple thoracenteses or thoracic surgical procedures within 3 months of screening * Previous pneumonectomy on the side of the pleural effusion * Current bilateral pleural infections * Known non-expandable lung prior to this pleural infection * Known or high clinical suspicion of a malignant pleural effusion * Existing indwelling or tunneled pleural catheter * Current infected hepatic hydrothorax or evidence of another abdominal process (e.g. pancreatic cyst or renal cyst) communicating with the pleural space * Active bleeding, or any condition in which bleeding is either a significant risk or would be difficult to manage * Fully anticoagulated patients on heparin, warfarin or novel oral anti-coagulants who are not able to temporarily discontinue anti-coagulants while receiving study medication and for 2 days after last dose of study medication Note: patients receiving low-molecular weight heparin for immobilization or anti-platelet agents are not excluded. * Presence of severe metabolic derangements that would interfere with study assessments * Systolic blood pressure \>185 mmHg or diastolic blood pressure \> 110 mmHg at screening * Hemodynamically unstable and/or requires use of intravenous vasopressor therapy * Expected survival \< 3 months from a pathology other than the qualifying infected, non-draining pleural effusion (e.g. metastatic lung carcinoma)

Design outcomes

Primary

MeasureTime frameDescription
Incidence of referral to surgeryPost treatment (Day 4/Hospital discharge or at time of treatment failure)Treatment failure, as evidenced by continued or worsening pleural sepsis and failure to adequately drain pleural effusion, resulting in referral to surgery

Secondary

MeasureTime frameDescription
Relative change in pleural opacityPost treatment (Day 4 or at time of treatment failure)Change from baseline in absolute pleural opacity and relative change from baseline in pleural opacity volume assessed by chest CT at Day 4

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 19, 2026