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Lumbrokinase (earthworm fibrinolytic enzymes)

Lumbrokinase

Research reviewed: Up until 03/2026

Lumbrokinase (Lumbrokinase (earthworm fibrinolytic enzymes)) is a dietary supplement with 6 published peer-reviewed studies involving 426 participants, researched for Blood Clot Prevention, Cardiovascular Health, Stroke Prevention and 1 more areas.

6
Studies
426
Participants
2007–2015
Research Span

Evidence at a Glance

Strength is scored by study design, sample size, study type, and outcomes

Overall: Strong Evidence

Blood Clot Prevention

Strong
2 studies 2 of 2 positive 200 participants

Cardiovascular Health

Moderate
1 study 1 of 1 positive 140 participants

Stroke Prevention

Moderate
2 studies 2 of 2 positive 86 participants 1 human

Fibrinolysis

Weak
1 study 0 of 1 positive 0 participants 0 human

Research Visualised

Visual breakdown of the clinical data.

Study Quality Breakdown

What types of studies were conducted

4/6
Randomised
2/6
Double-Blind
2/6
Placebo-Controlled

Participants Per Study

Larger samples = more reliable results

Study 1 (2010)
80
Study 2 (2015)
120
Study 1 (2012)
140
Study 1 (2009)
86
Study 2 (2007)
0
Study 1 (2011)
0

Research Timeline

When the studies were published

1
2007
1
2009
1
2010
1
2011
1
2012
1
2015

All Studies

Detailed breakdown of each trial. Click to expand.

Blood Clot Prevention

1

To evaluate lumbrokinase supplementation on coagulation markers and platelet aggregation.

2010 80 participants 12 weeks 600 mg/day lumbrokinase
Human Study RCT Double-Blind Placebo Positive

Study Type

Randomised, double-blind, placebo-controlled

Purpose

To evaluate lumbrokinase supplementation on coagulation markers and platelet aggregation.

Dose

600 mg/day lumbrokinase

Participants

80 patients with hypercoagulability states

Duration

12 weeks

Results

Lumbrokinase significantly reduced D-dimer, fibrinogen, and platelet aggregation rate compared to placebo. Lumbrokinase acts as a direct-acting fibrinolytic and thrombin inhibitor, reducing thrombotic risk.

How They Measured It

D-dimer, fibrinogen, platelet aggregation rate, PT, aPTT

Read full study
2

To assess lumbrokinase versus aspirin for antiplatelet effects in high cardiovascular risk patients.

2015 120 participants 8 weeks 300 mg/day lumbrokinase vs 100 mg/day aspirin
Human Study RCT Positive

Study Type

Randomised, controlled trial

Purpose

To assess lumbrokinase versus aspirin for antiplatelet effects in high cardiovascular risk patients.

Dose

300 mg/day lumbrokinase vs 100 mg/day aspirin

Participants

120 patients with high cardiovascular risk

Duration

8 weeks

Results

Lumbrokinase produced comparable antiplatelet effects to aspirin without gastrointestinal side effects. P-selectin expression was significantly reduced in both groups. Lumbrokinase appears a viable aspirin alternative.

How They Measured It

Platelet aggregation, P-selectin expression, von Willebrand factor

Read full study

Cardiovascular Health

1

To evaluate lumbrokinase on cardiovascular risk markers in patients with stable angina.

2012 140 participants 6 months 600 mg/day lumbrokinase
Human Study RCT Double-Blind Placebo Positive

Study Type

Randomised, double-blind, placebo-controlled

Purpose

To evaluate lumbrokinase on cardiovascular risk markers in patients with stable angina.

Dose

600 mg/day lumbrokinase

Participants

140 patients with stable angina

Duration

6 months

Results

Lumbrokinase significantly reduced fibrinogen, CRP, and blood viscosity in stable angina patients. Angina frequency and nitroglycerine use were reduced, suggesting improved cardiovascular function.

How They Measured It

Fibrinogen, CRP, blood viscosity, quality of life

Read full study

Stroke Prevention

1

To assess lumbrokinase as secondary prevention after ischaemic stroke.

2009 86 participants 12 months 300 mg three times daily lumbrokinase
Human Study RCT Positive

Study Type

Randomised, controlled trial

Purpose

To assess lumbrokinase as secondary prevention after ischaemic stroke.

Dose

300 mg three times daily lumbrokinase

Participants

86 patients with history of ischaemic stroke

Duration

12 months

Results

Lumbrokinase added to standard therapy significantly reduced fibrinogen levels and was associated with lower recurrence of ischaemic events. Neurological recovery scores improved more in the lumbrokinase group.

How They Measured It

Recurrent stroke rate, neurological deficit scores, fibrinogen levels

Read full study
2

To examine lumbrokinase on thrombus resolution in a rat carotid artery thrombosis model.

2007 ? participants 24 hours 50 mg/kg oral lumbrokinase
Animal Study Positive

Study Type

Animal study

Purpose

To examine lumbrokinase on thrombus resolution in a rat carotid artery thrombosis model.

Dose

50 mg/kg oral lumbrokinase

Participants

Sprague-Dawley rats

Duration

24 hours

Results

Lumbrokinase significantly reduced thrombus weight and restored carotid blood flow in a dose-dependent manner. Effects were comparable to low-dose tissue plasminogen activator without associated bleeding risk.

How They Measured It

Thrombus weight, carotid blood flow restoration, fibrin clot imaging

Read full study

Fibrinolysis

1

To characterise lumbrokinase's fibrinolytic enzyme components and activity.

2011 ? participants N/A Various lumbrokinase concentrations
In Vitro Mixed

Study Type

In-vitro study

Purpose

To characterise lumbrokinase's fibrinolytic enzyme components and activity.

Dose

Various lumbrokinase concentrations

Participants

Fibrin clot and plasma protein assays

Duration

N/A

Results

Lumbrokinase contains multiple serine protease enzymes capable of both direct fibrinolysis and activation of plasminogen to plasmin. Fibrinolytic activity is superior to nattokinase on a per-mg protein basis.

How They Measured It

Fibrin plate assay, casein degradation, zymography analysis

Read full study

Frequently Asked Questions

Common questions about Lumbrokinase research

What does the research say about Lumbrokinase?

There are currently 6 peer-reviewed studies on Lumbrokinase (Lumbrokinase (earthworm fibrinolytic enzymes)), involving 426 total participants. Research covers Blood clot prevention, Cardiovascular health, Stroke prevention and 1 more areas. The overall evidence strength is rated as Strong.

How strong is the evidence for Lumbrokinase?

The evidence is currently rated as "Strong Evidence". This rating is based on study design quality (randomisation, blinding, placebo controls), sample sizes, study types (4 human studies, 1 animal study), and reported outcomes.

What health goals has Lumbrokinase been studied for?

Lumbrokinase has been researched for: Blood clot prevention, Cardiovascular health, Stroke prevention, Fibrinolysis. Each area has its own body of evidence which you can explore in the study breakdowns above.

Are the studies on Lumbrokinase based on human trials?

Yes, 4 out of 6 studies are human trials. The remaining 1 is an animal study. Human trials carry more weight in our evidence scoring system.