MK0462 5 mg, Sumatriptan 50 mg, and Placebo Comparison Study (0462-029)

This study has been completed.
Information provided by (Responsible Party):
Merck Sharp & Dohme Corp. Identifier:
First received: May 8, 2009
Last updated: March 7, 2014
Last verified: March 2014

A study to compare rizatriptan (MK0462) 5 mg by mouth (p.o.) and sumatriptan 50 mg p.o. for the acute treatment of a migraine attack.

Condition Intervention Phase
Migraine Headache
Drug: rizatriptan benzoate (MK0462)
Drug: Comparator: sumatriptan
Drug: Comparator: Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Placebo-Controlled, Parallel-Groups, Outpatient Study to Compare the Efficacy and Safety of MK0462 5 mg p.o. and Sumatriptan 50 mg p.o. for the Acute Treatment of Migraine

Resource links provided by NLM:

Further study details as provided by Merck Sharp & Dohme Corp.:

Primary Outcome Measures:
  • Pain Relief at 2 Hours After Treatment [ Time Frame: 2 hours after treatment ] [ Designated as safety issue: No ]
    Participants reporting pain relief defined as a reduction of headache severity from grades 2 or 3 (moderate or severe pain) at baseline to grades 0 or 1 (no headache or mild pain) at 2 hours after treatment

  • Time to Relief Within 2 Hours After Treatment [ Time Frame: within 2 hours after treatment ] [ Designated as safety issue: No ]
    Participants reporting time to relief (defined as the first time that a participant reported grade 0 or 1 in headache severity within 2 hours after treatment (for the comparison of rizatriptan 5 mg and sumatriptan 50 mg).

Secondary Outcome Measures:
  • Pain Free at 2 Hours After Treatment [ Time Frame: 2 hours after treatment ] [ Designated as safety issue: No ]
    Participants pain free (defined as a reduction of headache severity to grade 0 [no pain]) at 2 hours after treatment. Each participant rated headache severity on a 4-grade scale (0 = no headache; 1 = mild pain; 2 = moderate pain; 3 = severe pain).

  • Lack of Functional Disability at 2 Hours After Treatment as Measured by the Level of Impairment in Daily Activities [ Time Frame: 2 hours after treatment ] [ Designated as safety issue: No ]
    Participants with no functional disability measured by the level of impairment to daily activities at 2 hours after treatment. Each participant rated functional disability on a 4-grade scale (0 =normal; 1 = daily activities mildly impaired; 2 = daily activities severely impaired; 3 =unable to carry out daily activities, required bed rest).

  • Presence or Absence of Associated Symptoms (Photophobia, Phonophobia, Nausea, and Vomiting) at 2 Hours After Treatment [ Time Frame: 2 hours after treatment ] [ Designated as safety issue: No ]
    Participants who recorded the presence or absence of the associated symptoms photophobia, phonophobia, nausea, and vomiting at 2 hours after treatment.

  • Participants Who Used Escape Medication 2 Hours After the Treatment Dose [ Time Frame: 2 hours after treatment ] [ Designated as safety issue: No ]
    Escape medication is defined as rescue medication for participants who experienced lack of efficacy from the study medication.

  • Duration of Relief (Time to Recurrence From the Time of First Recorded Pain Relief [Grade = 0 or 1]) [ Time Frame: 24 hours ] [ Designated as safety issue: No ]
    Duration of relief or the time to recurrence from the time of first recorded pain relief (grade = 0 or 1) was calculated for responders who had a headache recurrence

Enrollment: 933
Study Start Date: August 1995
Study Completion Date: September 1996
Primary Completion Date: May 1996 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
Drug: rizatriptan benzoate (MK0462)
single dose 5 mg rizatriptan p.o.
Other Name: MK0462
Experimental: 2
Drug: Comparator: sumatriptan
single dose 50 mg sumatriptan p.o.
Placebo Comparator: 3
Drug: Comparator: Placebo
Placebo to rizatriptan or sumatriptan, single dose placebo tablet taken orally


Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Participant had at least a 6-month history of migraine, with or without aura
  • Participant was male, or if female, must have been postmenopausal, surgically sterilized, or taking adequate contraceptive precautions
  • Participant was judged to be in good health, apart from migraine

Exclusion Criteria:

  • Participant was Pregnant or a nursing mother
  • Participant had a history or current evidence of drug or alcohol abuse
  • Participant had a history or clinical evidence of cardiovascular disease
  • Participant had a clinically significant Electrocardiography (ECG) abnormality
  • Participant had a resting systolic blood pressure of greater than 145 mm Hg or diastolic of less than 95 mm Hg at screening
  • Participant had received treatment with an investigational device or compound within 30 days of the study
  • Participant typically suffered from less then 1 or more than 8 attacks of migraine per month
  • Participant had difficulty in distinguishing his/her migraine attacks from tension or interval headaches
  • Participant was currently taking monoamine oxidase inhibitors, methysergide or lithium
  Contacts and Locations
Please refer to this study by its identifier: NCT00897104

Sponsors and Collaborators
Merck Sharp & Dohme Corp.
Study Director: Medical Monitor Merck Sharp & Dohme Corp.
  More Information

Responsible Party: Merck Sharp & Dohme Corp. Identifier: NCT00897104     History of Changes
Other Study ID Numbers: 0462-029, 2009_593
Study First Received: May 8, 2009
Results First Received: September 26, 2009
Last Updated: March 7, 2014
Health Authority: United Kingdom: Medicines and Healthcare Products Regulatory Agency

Additional relevant MeSH terms:
Migraine Disorders
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Headache Disorders, Primary
Headache Disorders
Brain Diseases
Central Nervous System Diseases
Antifungal Agents
Anti-Infective Agents
Therapeutic Uses
Pharmacologic Actions
Vasoconstrictor Agents
Cardiovascular Agents
Serotonin 5-HT1 Receptor Agonists
Serotonin Receptor Agonists
Serotonin Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs processed this record on April 17, 2014