pLatelEts And MigRaine iN patEnt foRamen Ovale
LEARNER
Migraine in Patients Undergoing PFO (Patent Foramen Ovale) Closure: Evaluation of a Platelet-associated Pathophysiologic Linking Mechanism
1 other identifier
interventional
90
1 country
1
Brief Summary
Migraine is a common, chronic neurovascular disorder characterized by attacks of severe headache, autonomic nervous system dysfunction and, in some patients, aura, and disabling neurological symptoms. Worldwide, migraine prevalence is as high as 18% in the general population. Increased frequency of patent foramen ovale (PFO) in migraineurs was first reported in 1998 in a case-control study. Since then, others have described a 60% prevalence of PFO in patients suffering from migraine with aura. The presence of a right-to-left shunt (RLS) is thought to be a potent trigger of migraine attacks, although the mechanism is unknown. Moreover, PFO closure has correlated with improved migraine symptoms in several retrospective uncontrolled studies. The aim of this single-center, prospective study is to assess the impact of PFO closure on migraine attacks over time together with evaluation of potential predictive risk factors.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Feb 2018
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 15, 2018
CompletedFirst Submitted
Initial submission to the registry
April 16, 2018
CompletedFirst Posted
Study publicly available on registry
May 11, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 31, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
October 31, 2020
CompletedResults Posted
Study results publicly available
October 19, 2021
CompletedApril 19, 2024
December 1, 2023
2.7 years
April 16, 2018
July 27, 2021
December 15, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Change in Migraine Characteristics
The evaluation in absolute numbers of patients fully responders, non-responders or with a moderate benefit on migraine symptoms after PFO Closure was performed
The outcome data were evaluated at 6-months and 12-months after PFO closure and compared to baseline
Migraine Assessment by Anzola's Score
The change in migraine severity, incidence and duration with or without aura as measured by the Anzola's score (The score is the expression of the sum of each corresponding value referring to migraine duration, frequency and the presence or absence of aura). The minimum value was 2 and the maximum 9; the higher the value, worse is the migraine classification. Anzola's score: Duration 0=No pain 1=\<6 hours 2=6-12 hours 3=\>12 hours Frequency 0=No pain 1=1-4/month 2=5-9/month 3=\>10/month Aura 0=No aura 1=Aura in ≥1 attack
Baseline, 6 months and 12-months after PFO closure
Secondary Outcomes (6)
Platelet Activation (I)
baseline and 6 months after PFO closure
Platelet Activation (II)
Baseline and 6 months after PFO closure
Platelet Activation (III)
baseline and six months after PFO closure
Platelet Activation (IV)
Baseline and six-months after PFO closure
Platelet Aggregation (I)
baseline and 6 months after PFO Closure
- +1 more secondary outcomes
Study Arms (2)
Migraine evaluation in PFO patients
EXPERIMENTALPatients symptomatic for migraine with/o aura and addressed to patent foramen ovale closure (Occlutech Figulla Flex II PFO occluder device) for a previous ischemic event, will receive dual antiplatelet therapy (DAPT) for 2 months after procedure and aspirin alone subsequently. Patients will undergo evaluation of platelet reactivity, serotonin and cytokines before PFO closure with a dedicated device and at 6 months follow-up and these results compared to those of a control, group of healthy subjects treated with aspirin alone
healthy subjects on aspirin treatment
NO INTERVENTION12 healthy subjects on 100 mg aspirin daily will be compared to PFO patients in terms of platelet reactivity, serotonin and cytokines
Interventions
Pts undergoing PFO closure will receive 2-months of DAPT and 6 months of aspirin after patent foramen ovale (PFO) closure; they will be compared to healthy subjects on aspirin treatment
Eligibility Criteria
You may qualify if:
- Patients older than 18 years with more than 2 criteria:
- Previous Stroke or TIA (transient ischemic attack)
- positive MRI for ischemic events -
- PFO with a baseline R-L shunt \> 10 microembolic signals (MES) and \> 20 MES during/after Valsalva Manoeuver
- Atrial septal aneurysm (ASA) or residual Chiari network or Eustachian Valve
- positive Thrombophilic screening (MTHFR/prot C/Prot S)
- Ability to sign the informed consent for the study participation
You may not qualify if:
- Patients older than 70 years
- Paroxysmal Atrial fibrillation
- Carotid, vertebral or basilar artery stenosis\> 50% on duplex imaging
- Inadequate temporal bone windows (signals) for transcranial Doppler insonation
- medication overuse headache
- history of cognitive dysfunction, epilepsy, brain injury
- use of continuous positive airway pressure (CPAP) within 6 months of study enrollment
- Left Ventricular Ejection Fraction (LVEF) \< 30%
- Moderate/severe mitral valve regurgitation
- Known Allergy to aspirin
- Known allergy to nickel
- Severe chronic kidney disease (GFR \< 30 ml/min)
- Beck depression inventory score \> or= 29
- State-trait anxiety inventory score exceeding cut-off for are and sex
- Keywords: PFO, migraine, migraine with aura, aura, platelets
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Centro Cardiologico Monzino, IRCCS
Milan, MI, 20138, Italy
Related Publications (1)
Trabattoni D, Brambilla M, Canzano P, Becchetti A, Teruzzi G, Porro B, Fiorelli S, Muratori M, Tedesco CC, Veglia F, Montorsi P, Bartorelli AL, Tremoli E, Camera M. Migraine in Patients Undergoing PFO Closure: Characterization of a Platelet-Associated Pathophysiological Mechanism: The LEARNER Study. JACC Basic Transl Sci. 2022 Apr 13;7(6):525-540. doi: 10.1016/j.jacbts.2022.02.002. eCollection 2022 Jun.
PMID: 35818509DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
MHA may have a multifactorial etiology. The role of oxidative stress appears consistent and corroborated by the in vitro data. The effect of serotonin and oxidative stress was tested on platelets from healthy subjects and not from pts because the Sars-Cov-2 pandemic imposed restrictions on pts enrolment. Finally, the thrombin generation capacity of platelets and MVs were included after the study started to support the pro-coagulant phenotype evidenced by ad interim flow cytometry data analysis
Results Point of Contact
- Title
- Clinical Trials' Office Chief
- Organization
- Centro Cardiologico Monzino, IRCCS
Study Officials
- PRINCIPAL INVESTIGATOR
Daniela Trabattoni, MD
Centro Cardiologico Monzino, IRCCS
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- MD, FACC
Study Record Dates
First Submitted
April 16, 2018
First Posted
May 11, 2018
Study Start
February 15, 2018
Primary Completion
October 31, 2020
Study Completion
October 31, 2020
Last Updated
April 19, 2024
Results First Posted
October 19, 2021
Record last verified: 2023-12
Data Sharing
- IPD Sharing
- Will not share