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WithdrawnNCT04353505Updated Aug 4, 2020

Intra-arterial Sphenopalatine Ganglion Block for Patients With Refractory Headache

A Phase 1 interventional study of Ketorolac and Dexamethasone in Chronic Migraine, Cluster Headache and Trigeminal Neuralgia, sponsored by Weill Medical College of Cornell University. Withdrawn at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-08-04.

Sponsored by Weill Medical College of Cornell University · Phase 1, Interventional, and Treatment

Why this study was withdrawn
PI closed the study before any enrollment
Phase
Phase 1
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the safety and efficacy of intra-arterial (IA) delivery of Dexamethasone and Ketorolac into the arteries supplying the sphenopalatine ganglion (SPG) - a collection of neurons that plays an important role in headache disorders - in patients with refractory migraine, cluster headache and trigeminal neuralgia. All patients must fail standard treatments prior to enrollment in the trial.

Read the detailed description

The investigators propose an outpatient, minimally invasive method to deliver Dexamethasone and Ketorolac to the SPG via the intra-arterial route. A microcatheter will be advanced via the radial (preferably) or the femoral artery (in case the radial approach is not feasible) using fluoroscopic guidance and standard interventional techniques, into the distal internal maxillary artery. This artery is a branch of the external carotid artery and supplies the territory of the sphenopalatine ganglion. The microcatheter will be advanced to the ostium of the distal small branches that supply the SPG (i.e. small arteries feeding the vasa nervosum). Once the microcatheter is in a good position, 15 mg Dexamethasone Sodium Phosphate and 15 mg of Ketorolac Tromethamine will be infused over 30 minutes.

The procedure will be performed with local anesthetic at the arterial puncture site. Conscious sedation will be used for anxious participants. After the procedure, the participant will be observed for 5 hours in ICU setting and then discharged to home.

The procedure will be performed unilaterally for participants with cluster headache and trigeminal neuralgia. The procedure could be performed bilaterally for participants with migraine.

02

Conditions studied

  • Chronic Migraine
  • Cluster Headache
  • Trigeminal Neuralgia
03

In context

Trigeminal Neuralgia

135 studies on the registry are indexed under Trigeminal Neuralgia; 44 are open to participants now.

Browse Trigeminal Neuralgia studies →

Lead sponsor

Weill Medical College of Cornell University is the lead sponsor of 867 studies on the registry; 160 are open to participants now.

Of its 119 completed or terminated interventional studies of FDA-regulated products, 91 (76%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Established diagnosis of one of the three following headache or facial pain disorders as defined by the ICHD-329 [chronic migraine, cluster headache, trigeminal neuralgia] and failure to respond to two or more preventive therapies

A. Chronic migraine

Failure to respond to two or more preventive therapies including Onabotulinumtoxin A, erenumab, fremanezumab, galcanezumab, topiramate, valproic acid, metoprolol, propranolol, timolol, atenolol, nadolol, amitriptyline, nortriptyline, venlafaxine, duloxetine.

This will include status migrainosus.

B. Cluster headache

Failure to respond to Verapamil, AND one other preventive treatment including Prednisone, Dexamethasone, galcanezumab, lithium, valproic acid, topiramate, external vagus nerve stimulation

C. Trigeminal neuralgia

Failure to respond to two or more preventive therapies, including: Oxcarbazepine or carbamazepine, and One of the following: gabapentin, pregabalin, baclofen, lamotrigine, phenytoin

Exclusion criteria

Exclusion Criteria:

  • Patients with malignant neoplasm of the pterygopalatine fossa
  • Pregnancy, lactation
  • Severe allergic reaction to Dexamethasone
  • Severe allergic reaction to NSAID
  • Renal failure
  • Active systemic infection or fever
  • Known cerebral vascular disease
  • Drug or alcohol abuse
  • Opioid dependency (stable doses ok)
  • Triptans within 48 hours from the procedure
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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    Intra-Arterial Delivery of Ketorolac and Dexamethasone

    Drug: Ketorolac · Drug: Dexamethasone

Interventions

  • DrugKetorolac

    Intra-arterial delivery of Ketorolac in the internal maxillary artery, once

  • DrugDexamethasone

    Intra-arterial delivery of Dexamethasone in the internal maxillary artery, once.

06

What researchers measure

Primary outcomes

  1. Number of Procedure-Related Adverse Events

    Time frame: up to 1 hour post-procedure

  2. Number of Procedure-Related Adverse Events

    Time frame: 5 hours post procedure

  3. Number of Procedure-Related Adverse Events

    Time frame: 2 weeks post procedure

Secondary outcomes

  1. Change in Number of Days of Headache in Subjects with Chronic Migraine

    Time frame: 1 week, 2 weeks, 4 weeks, 6 weeks

  2. Proportion of Chronic Migraine Patients that achieve at least 50% reduction in days of headache frequency

    Time frame: 1 week, 2 weeks, 4 weeks, 6 weeks

  3. Proportion of patients with Cluster Headache that achieve 50% reduction in median number of attacks per day

    Time frame: 1 week, 2 weeks, 4 weeks, 6 weeks

  4. Change in number of days of facial pain for subjects with trigeminal neuralgia

    Time frame: 1 week, 2 weeks, 4 weeks, 6 weeks

  5. Proportion of patients with trigeminal neuralgia that achieve at least 50% reduction in days of facial pain frequency

    Time frame: 1 week, 2 weeks, 4 weeks, 6 weeks

07

Study locations

1 site
  • Weill Cornell Medicine
    New York, New York 10021, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 4, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04353505
Lead sponsor
Weill Medical College of Cornell University
Responsible party
Sponsor
First posted
Apr 20, 2020
Start date
Oct 2020 (estimated)
Primary completion
Jun 2022 (estimated)
Completion
Jun 2023 (estimated)
Last update
Aug 4, 2020

Study contacts

Athos Patsalides, MD, MPH
principal investigator · WCMC

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is withdrawn, as verified in Jul 2020. You cannot join it, but the record below documents what was studied.

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