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A Study of the Effects of AMG 334 to Prevent Migraine Headaches

An Open-label Extension (OLE) Study to Assess the Long-term Safety and Efficacy of AMG 334

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2013-005311-27-SE
Enrollment
651
Registered
2014-03-21
Start date
2015-04-08
Completion date
Unknown
Last updated
2017-07-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prevention of chronic migraine MedDRA version: 18.1 Level: LLT Classification code 10027608 Term: Migraine, unspecified System Organ Class: 100000004852

Interventions

Sponsors

Amgen Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Completed the 12-week study visit and did not end IP early during the double-blind treatment period of the AMG 334 20120295 parent study, and is appropriate for continued treatment Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 651 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: - Development of any unstable or clinically significant medical condition, laboratory or ECG abnormality following randomization into the parent study, that in the opinion of the investigator, would pose a risk to subject safety or interfere with the study evaluation, procedures or completion - Any subject who experienced an SAE in the parent study (AMG 334 20120295) for whom the investigator determined that there was a reasonable possibility that the event may have been caused by investigational medicinal product - In the opinion of the investigator, subject demonstrated poorly controlled hypertension following randomization into the parent study - Systolic blood pressure (BP) 150 mm Hg and/or diastolic BP 90 mm Hg or greater at screening/Day 1 - Pregnant (as confirmed by the Week 12 urine pregnancy test of parent study) or breastfeeding, or is a female expecting to conceive during the study, including through 16 weeks after the last dose of investigational product - Female subject of childbearing potential who is unwilling to use an acceptable method of effective contraception during treatment with AMG 334 through 16 weeks after the last dose of investigational product. Acceptable methods of effective birth control include not having intercourse (true abstinence, when this is in line with the preferred and usual lifestyle of the subject), hormonal birth control methods (pills, shots/injections, implants or patches), intrauterine devices, surgical contraceptive methods (vasectomy with medical assessment of the surgical success of this procedure or bilateral tubal ligation), or two barrier methods (each partner must use one barrier method) with spermicide - males must use a condom with spermicide; females must choose either a Diaphragm with spermicide, OR Cervical cap with spermicide, OR Contraceptive sponge with spermicide - refer to the protocol for a definition of female subjects not of childbearing potential

Design outcomes

Primary

MeasureTime frame
Main Objective: To characterize the safety and tolerability of long-term administration of AMG 334;Secondary Objective: To characterize the efficacy of long-term administration of AMG 334 as assessed by: • Change from baseline in monthly migraine days • Proportion of subjects with at least 50% reduction from baseline in monthly migraine days • Change from baseline in monthly acute migraine-specific medication treatment days • Change from baseline in monthly cumulative hours of headache • Secondary Objective of CHU Substudy: To assess the safety and tolerability of AMG 334 administered using two 1-mL PFS or two 1-mL AI/pens;Primary end point(s): Subject incidence of adverse events.;Timepoint(s) of evaluation of this end point: For full details, please refer to the schedule of assessments table in the protocol.

Secondary

MeasureTime frame
Secondary end point(s): • Change from baseline in monthly migraine days from baseline at assessment timepoints • Achievement of at least a 50% reduction from baseline in monthly migraine days at assessment timepoints • Change from baseline in monthly acute migraine-specific medication treatment days at assessment timepoints • Change from baseline in cumulative monthly headache hours at assessment timepoints CHU Substudy • Subject incidence of adverse events, serious adverse events, and adverse device effects;Timepoint(s) of evaluation of this end point: For full details, please refer to the schedule of assessments table in the protocol.

Countries

Canada, Czech Republic, Denmark, Finland, Germany, Norway, Poland, Sweden, United Kingdom, United States

Contacts

Public ContactIHQ Medical Info - Clinical Trials

Amgen (EUROPE) GmbH

MedinfoInternational@amgen.com

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026