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NCT Number: NCT05880524

Reduction of SystemiC Inflammation After Ischemic Stroke by Intravenous DNase Administration (ReSCInD)

The goal of this (multicentric, randomised, placebo-controlled single-blinded; phase 2) clinical trial is to test the hypothesis that DNase 1 administration leads to a reduction in systemic immune response measured in patients after acute ischaemic stroke compared to control treatment.

Participants will receive intravenous DNase 1 (500 µg/kg) or placebo (NaCl 0.9%) twice within 24±6 hours after symptom onset (last seen well). Blood samples will be taken at baseline, day 1 and 3. Personal visits will occur on baseline, day 1, 3 and discharge date. A telephone interview will be conducted on day 30±3.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Institute for Stroke and Dementia Research, Ludwig Maximilian University Munich, University Hospital, Munich, Bavaria, Germany

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients with suspected acute ischemic stroke with symptom onset (last-seen-well) until Investigational drug application of less than 12 hours.
  • Consent to participate in the study.
  • Age ≥ 18 years.
  • NIHSS ≥10 at admission.

Exclusion criteria

  • Presence of any of the following conditions: Sinus or cerebral venous thrombosis, intracerebral haemorrhage, subarachnoid haemorrhage on qualified imaging (cCT with CT-A or MRI with MR-A). However, petechial haemorrhagic transformations of the index infarct and cerebral microhaemorrhages may be included.
  • Active malignant tumour disease in the last 6 months.
  • Current known immunosuppression due to immunomodulatory medication with immunosuppressive dose or underlying immunosuppressive disease (e.g. HIV).
  • Acute fulminant infectious disease in the last 7 days (fever > 38.5°C or suspected by the Investigator).
  • Breastfeeding or pregnant woman, women of childbearing age without known use of contraceptives with positive urine or serum beta-human choriogonadotropin test.
  • Ischemic stroke or myocardial infarction in the previous 30 days.
  • Surgery in the previous 30 days, except minor dermatological or gynaecological surgery without anaesthesia and wound healing disorders and patients with thrombectomy.
  • Estimated or known weight > 100 kg.
  • Known allergies or intolerance to dornase alfa (Pulmozyme) or recombinant protein products derived from Chinese hamster ovary cells.
  • Thrombocytopenia, leukocyte count <1500/μl.
  • Known participation in another clinical trial investigating a drug and/or medical product in the last 7 days before study inclusion.
  • Severe renal insufficiency with GFR≤29 ml/min/ 1.73m³ and/or renal insufficiency requiring dialysis.

Treatment and study plan

Dornase Alfa

Drug

Patients will receive an intravenous dose of Dornase alfa twice within within 24±6 hours after symptom onset, administered as a bolus.

Other names: Pulmozyme

Isotonic saline solution

Drug

Patients will receive an intravenous dose of Isotonic saline solution twice within within 24±6 hours after symptom onset, administered as a bolus.

Other names: NaCl 0,9%

Primary outcomes

  1. Concentration of interleukin-1 beta in blood of patients with acute ischemic stroke receiving Dornase alfa compared to placebo treatment with Isotonic Saline Solution.

    Time frame: 24±6 hours after symptom onset

    Outcome of reduced systemic immune response measured by interleukin-1 beta concentration [pg/ml] (at 24±6 hours after symptom onset) measured by Enzyme-linked Immunosorbent Assay (ELISA).

Secondary outcomes

  1. cfDNA concentration in blood.

    Time frame: 24±6 hours after symptom onset

    Measurement of cell-free DNA (cfDNA) concentration [ng/ml] in blood at day 1 (24±6 hours after symptom onset) compared to the placebo group with experimental analysis.

  2. DNase 1 activity in blood.

    Time frame: 24±6h after symptom onset

    Comparison of DNase 1 activity [µU/ml] in blood of both treatment arms measured by Enzyme-linked Immunosorbent Assay (ELISA).

  3. Concentration of DNase 1 in blood.

    Time frame: 24±6h after symptom onset

    Analysis of the DNase 1 concentration [ng/ml] in patient blood treated with Dornase alfa compared to the placebo group by Enzyme-linked Immunosorbent Assay (ELISA).

  4. Analysis of the composition of the leukocyte population in blood.

    Time frame: 24±6 hours after symptom onset

    Analysing the leukocyte population [%] in blood using flow cytometry in both treatment arms.

  5. Interleukin-6 concentration in blood after treatment.

    Time frame: 24±6 hours after symptom onset

    Measurement of the interleukin-6 concentration [pg/ml] in blood samples (at 24±6 hours after symptom onset) measured by Enzyme-linked Immunosorbent Assay (ELISA).

  6. Caspase 1 concentration in blood after treatment.

    Time frame: 24±6 hours after symptom onset

    Analysing the caspase 1 concentration [pg/ml] in blood (at 24±6 hours after symptom onset) measured by Enzyme-linked Immunosorbent Assay (ELISA).

  7. Assessment of patient safety after Dornase alfa treatment.

    Time frame: 30±3 days after symptom onset

    Safety aspects of intravenous investigational drug administration in acute ischemic stroke patients will be assessed by monitoring all study patients for 30±3 days and analysis of their:

    • routine clinical diagnostics (worsening stroke is defined as a) progression, hemorrhagic transformation of the index stroke documented by radiological imaging; b) life-threatening need for intervention; c) death from the index stroke; and/or d) increasing disability (as measured by an increase of ≥ 4 points from the lowest NIHSS score measured during hospitalization, or a 1-point increase in mRS),
    • laboratory parameters (hemoglobin, platelets, neutrophil granulocytes, leukocytes, CRP, GFR, creatinine, IL-6) and
    • number of adverse events assessed by CTCAE current version.
  8. Comparison of the incidence of infections and antibiotic treatment in both treatment arms.

    Time frame: 30±3 days after symptom onset

    Comparing the incidence of infections and antibiotic treatment after Dornase alfa and Isotonic Saline Solution treatment over a period of 30±3 days after symptom onset.

  9. Functional neurological outcome scores (National Institute of Health Stroke Scale [NIHSS, 0-42] and Modified Rankin Scale [mRS, 0-6]) at both treatment arms.

    Time frame: 30±3 days after symptom onset

    Analysing changes of neurological scores (National Institute of Health Stroke Scale [NIHSS, 0-42] and Modified Rankin Scale [mRS, 0-6]) from baseline to last visit 30±3 days after symptom onset.

Study contacts

Contact information is provided by the study sponsor or research team.

Arthur Liesz, Prof. Dr.

CONTACT

[email protected]

+49 89 4400 46169

Sponsors and collaborators

Lead sponsor

Ludwig-Maximilians - University of Munich

Other

Collaborators

  • University Hospital Erlangen
  • Universitätsklinikum Hamburg-Eppendorf

Registry information

Acronym: ReSCInD

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
May 30, 2023
Registry last updated
Sep 11, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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