Efficacy and Safety of Apixaban in Reducing Restenosis and Limb Loss in PAD Patients.

Critical Limb Ischemia Clinical Trial

— AGRIPPA  

Official title:

Efficacy and Safety of Apixaban in Reducing Restenosis and Limb Loss in Subjects With Symptomatic Peripheral Artery Disease (PAD) Undergoing Infrapopliteal Endovascular Peripheral Revascularization Procedures in Patients With Critical Limb

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT04229264
• Other study ID #: AGRIPPA/EMRISTA 2018
• Status: Recruiting
• Phase: Phase 3
• Start date: January 9, 2020
• Est. completion date: May 2, 2022

Study information

• Verified date: April 2021
• Source: Science Valley Research Institute
• Contact: Leandro Agati, PhD
• Phone: +5501144688183
• Email: agati[@]svriglobal.com
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study will evaluate the efficacy and safety of apixaban 2.5 mg twice daily plus aspirin compared to the standard treatment (clopidogrel plus aspirin) in patients with critical limb ischemia undergoing infrapopliteal arterial endovascular intervention.

Description:

This study is a multicentre, parallel-group, prospective, randomized open-label, blinded-endpoint adjudication, proof-of-concept, and exploratory trial. Two hundred patients will be randomized in a 1:1 ratio, 72 hours after successful infrapopliteal angioplasty for critical limb ischemia. In the study group, patients will receive oral apixaban 2.5mg twice daily plus aspirin 100 mg once-daily for 12 months. In the control group, aspirin 100 mg once-daily will be taken for 1 year on a background of clopidogrel (75mg daily) for the first three months. The primary endpoint is the composite of target lesion revascularization (TLR), major amputation or restenosis/occlusion (RAS) plus MACE (myocardial infarction, stroke, and cardiovascular death) at 12 months. The primary safety endpoint is the composite of major bleeding and clinically relevant non-major bleeding at 12 months.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 200
• Est. completion date: May 2, 2022
• Est. primary completion date: February 2, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Written informed consent.

• Age>18 years old.

• Negative serum pregnancy test (in women of childbearing only).

• Patients submitted to endovascular procedures below-the-knee by not exclusively.

• Patient understands and is willing and able to comply with the study instructions and follow-up visit.

• More than 70% stenosis or occlusion of the three distal arteries including or not the tibiofibular trunk (TFT).

• Tissue loss (Rutherford 5).

• One or more patent vessel of pedal arch.

Exclusion Criteria:

• TASC II D femoral and/or popliteal occlusion.

• Life expectancy less than 1 year.

• Allergy or contraindication to apixaban treatment.

• Allergy or contraindication to dual antiplatelet treatment.

• Creatinine clearance less than 30mL/min.

• Planned major amputation before procedure.

• Hybrid procedure (open and endovascular).

• Use of fibrinolytic in the past 10 days.

• Known HIV infection.

• Liver disease (acute or chronic hepatitis and cirrhosis).

• Drug addiction or alcohol abuse 12 months before the randomization.

• Concomitant medications thatinhibit the CYP 3A4 cytochrome and P glycoprotein (ketoconazole, Iitraconazole, ritonavir).

• Platelets count inferior to 100x109/L.

• INR more than 1.5.

• History or condition with high risk of bleeding: Eg. Trauma within 30 days before randomization, gastrointestinal bleeding 6 month before the randomization, intra-ocular, spinal, intra-articular bleeding (any time before), AV malformation, cerebral aneurysm and hypertension without control.

Related Conditions & MeSH terms

• Critical Limb Ischemia
• Ischemia

Intervention

Drug:
• Apixaban
Oral Apixaban 2.5 mg twice daily for one year
• ASA
Acetil Salicilic Acid 100mg once daily for one year
• Clopidogrel 75mg
Clopidogrel 75mg once daily for 3 months

Locations

Country	Name	City	State
Brazil	IAMSPE - Sao Paulo Public Servants Hospital	São Paulo

Sponsors (2)

Lead Sponsor	Collaborator
Science Valley Research Institute	Wyeth is now a wholly owned subsidiary of Pfizer

Country where clinical trial is conducted

Brazil, 

References & Publications (50)

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* Note: There are 50 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Restenosis of the treated infrapopliteal artery	Number of patients with absence of flow or >2.4 sistolic index obtained by Duplex Scan	12 months
Primary	Major amputation	Number of patients who underwent amputation of the leg above the ankle	12 months
Primary	Clinical driven-target lesion revascularization	Number of patients who was submitted by reintervention of the treated infrapopliteal artery based on the clinical status	12 months
Primary	Major cardiovascular events	Number of patients who present one of those: myocardial infarction, stroke and cardiovascular death	12 months
Secondary	Bleeding	Number of patients who present major bleeding (MB) or clinically relevant non-major bleeding, using the ISTH criteria	12 months
Secondary	Healing	Time to total healing measured by the Imitomeasure program.	12 months