Adults 18 to 45, any sex, with Migraine. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Number of Participants With a MLA Within 24 Hours of Challenge Agent InfusionPrimary· Part B randomization phase day 8 plus 24 hours.
On day 1 of the double-blind randomization phase participants received 140 mg intravenous erenumab over 30 minutes or matching placebo. On day 8, participants received 10 mol/kg/minute PACAP-38 over 10 minutes and were observed for 24 hours after PACAP-38 infusion.
A MLA was defined as fulfilling 1 of the 2 criteria:
1. Headache with at least 2 of the following characteristics: unilateral location, pulsating quality, moderate or severe pain intensity, aggravated by/causing avoidance of routine physical activity. Additionally, during the headache at least 1 of the following: nausea and/or vom
Participants with MLA
Group
Value
95% CI
Placebo
1
Erenumab
1
Participants without MLA
Group
Value
95% CI
Placebo
8
Erenumab
6
Number of Participants With a Headache Within 24 Hours of Challenge Agent InfusionSecondary· Part B randomization phase day 8 plus 24 hours.
On day 1 of the double-blind randomization phase participants received 140 mg intravenous erenumab over 30 minutes or matching placebo. On day 8, participants received 10 mol/kg/minute PACAP-38 over 10 minutes and were observed for 24 hours after PACAP-38 infusion.
Participants with headaches
Group
Value
95% CI
Placebo
3
Erenumab
3
Participants without headaches
Group
Value
95% CI
Placebo
6
Erenumab
4
Number of Participants With Treatment Emergent Adverse Events (TEAEs)Secondary· Part B randomization phase day 1 until EOS (up to 12 weeks).
TEAEs were summarised for days 1 to 7 after the participants received placebo or erenumab infusion on day 1 of the Part B randomization phase. TEAEs were also summarized from day 8 to end of study (EOS) after participants had received both investigational product (placebo or erenumab) and the second dose of PACAP-38 on day 8.
Participants with TEAEs from day 1 to 7
Group
Value
95% CI
Placebo
6
Erenumab
0
Participants with TEAEs from day 8 to EOS
Group
Value
95% CI
Placebo
9
Erenumab
7
Serious AEs
Group
Value
95% CI
Placebo
0
Erenumab
0
AEs with fatal outcome
Group
Value
95% CI
Placebo
0
Erenumab
0
Mean Change From Baseline in Systolic and Diastolic Blood Pressure (BP) at Day 1, Day 8 and EOSSecondary· Part B randomization phase baseline and day 1, day 8 and EOS (week 12).
Systolic and diastolic BP was assessed during Part B of the study, and the mean change from baseline is presented for the last measurements taken following administration of placebo or erenumab on day 1 (1 hour post-dose), and following administration of PACAP-38 on day 8 (8 hours post-dose). The mean change from baseline is also presented for the EOS assessment.
1 hour post-dose day 1: systolic BP
Group
Value
95% CI
Placebo
-0.7
± 7.9
Erenumab
2.4
± 5.2
1 hour post-dose day 1: diastolic BP
Group
Value
95% CI
Placebo
1.2
± 5.7
Erenumab
0.7
± 6.4
8 hours post-dose day 8: systolic BP
Group
Value
95% CI
Placebo
-3.1
± 5.7
Erenumab
-3.7
± 6.2
8 hours post-dose day 8: diastolic BP
Group
Value
95% CI
Placebo
-3.6
± 2.9
Erenumab
-9.6
± 6.8
EOS: systolic BP
Group
Value
95% CI
Placebo
-2.6
± 9.2
Erenumab
2.6
± 3.8
EOS: diastolic BP
Group
Value
95% CI
Placebo
-0.1
± 6.4
Erenumab
1.7
± 5.9
Mean Change From Baseline in Heart Rate at Day 1, Day 8 and EOSSecondary· Part B randomization phase baseline and day 1, day 8 and EOS (week 12).
Heart rate was assessed during Part B of the study, and the mean change from baseline is presented for the last measurements taken following administration of placebo or erenumab on day 1 (1 hour post-dose), and following administration of PACAP-38 on day 8 (8 hours post-dose). The mean change from baseline is also presented for the EOS assessment.
1 hour post-dose day 1
Group
Value
95% CI
Placebo
-5.0
± 8.2
Erenumab
1.7
± 5.7
8 hours post-dose day 8
Group
Value
95% CI
Placebo
2.6
± 11.5
Erenumab
8.7
± 4.6
EOS
Group
Value
95% CI
Placebo
-0.9
± 8.6
Erenumab
2.4
± 5.5
Mean Change From Baseline in Respiratory Rate at Day 1, Day 8 and EOSSecondary· Part B randomization phase baseline and day 1, day 8 and EOS (week 12).
Respiratory rate was assessed during Part B of the study, and the mean change from baseline is presented for the last measurements taken following administration of placebo or erenumab on day 1 (1 hour post-dose), and following administration of PACAP-38 on day 8 (8 hours post-dose). The mean change from baseline is also presented for the EOS assessment.
1 hour post-dose day 1
Group
Value
95% CI
Placebo
0.8
± 2.2
Erenumab
-1.4
± 2.6
8 hours post-dose day 8
Group
Value
95% CI
Placebo
1.0
± 2.1
Erenumab
-1.0
± 3.5
EOS
Group
Value
95% CI
Placebo
1.7
± 4.0
Erenumab
1.1
± 3.7
Mean Change From Baseline in Temperature at Day 1, Day 8 and EOSSecondary· Part B randomization phase baseline and day 1, day 8 and EOS (week 12).
Temperature was assessed during Part B of the study, and the mean change from baseline is presented for the last measurements taken following administration of placebo or erenumab on day 1 (1 hour post-dose), and following administration of PACAP-38 on day 8 (8 hours post-dose). The mean change from baseline is also presented for the EOS assessment.
1 hour post-dose day 1
Group
Value
95% CI
Placebo
0.18
± 0.39
Erenumab
0.34
± 0.36
8 hours post-dose day 8
Group
Value
95% CI
Placebo
0.60
± 0.48
Erenumab
0.63
± 0.56
EOS
Group
Value
95% CI
Placebo
-0.34
± 0.47
Erenumab
0.16
± 0.41
Mean Change From Baseline in Alkaline Phosphatase (ALP), Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST) at Day 8, Day 9 and EOSSecondary· Part B randomization phase baseline and day 8, day 9 and EOS (week 12).
ALP, ALT and AST were assessed during Part B of the study, and the mean change from baseline is presented for samples taken prior to administration of PACAP-38 on day 8 (pre-PACAP-38 dose), and following administration of PACAP-38 on day 9. The mean change from baseline is also presented for the EOS assessment.
Day 8 (Pre-PACAP-38 dose): ALP
Group
Value
95% CI
Placebo
-2.0
± 5.6
Erenumab
0.0
± 4.8
Day 9 (Post-PACAP-38 dose): ALP
Group
Value
95% CI
Placebo
-1.6
± 4.1
Erenumab
-0.3
± 2.3
EOS: ALP
Group
Value
95% CI
Placebo
1.0
± 12.3
Erenumab
6.1
± 9.6
Day 8 (Pre-PACAP-38 dose): ALT
Group
Value
95% CI
Placebo
-1.4
± 3.5
Erenumab
-3.0
± 4.2
Day 9 (Post-PACAP-38 dose): ALT
Group
Value
95% CI
Placebo
-2.1
± 3.5
Erenumab
-4.5
± 4.2
EOS: ALT
Group
Value
95% CI
Placebo
-2.0
± 4.7
Erenumab
3.1
± 9.4
Day 8 (Pre-PACAP-38 dose): AST
Group
Value
95% CI
Placebo
0.3
± 3.0
Erenumab
2.4
± 4.0
Day 9 (Post-PACAP-38 dose): AST
Group
Value
95% CI
Placebo
-0.8
± 2.7
Erenumab
-4.2
± 2.3
Mean Change From Baseline in Total Bilirubin at Day 8, Day 9 and EOSSecondary· Part B randomization baseline and day 8, day 9 and EOS (week 12).
Total bilirubin was assessed during Part B of the study, and the mean change from baseline is presented for samples taken prior to administration of PACAP-38 on day 8 (pre-PACAP-38 dose), and following administration of PACAP-38 on day 9. The mean change from baseline is also presented for the EOS assessment.
Day 8 (Pre-PACAP-38 dose)
Group
Value
95% CI
Placebo
-0.4211
± 3.6356
Erenumab
-1.4849
± 0.8532
Day 9 (Post-PACAP-38 dose)
Group
Value
95% CI
Placebo
3.3229
± 1.3971
Erenumab
-2.2980
± 1.0300
EOS
Group
Value
95% CI
Placebo
0.0804
± 3.0270
Erenumab
1.3191
± 3.5099
Mean Change From Baseline in Blood Urea at Day 8, Day 9 and EOSSecondary· Part B randomization baseline and day 8, day 9 and EOS (week 12).
Blood urea was assessed during Part B of the study, and the mean change from baseline is presented for samples taken prior to administration of PACAP-38 on day 8 (pre-PACAP-38 dose), and following administration of PACAP-38 on day 9. The mean change from baseline is also presented for the EOS assessment.
Day 8 (Pre-PACAP-38 dose)
Group
Value
95% CI
Placebo
0.0629
± 0.9274
Erenumab
-0.0524
± 0.5270
Day 9 (Post-PACAP-38 dose)
Group
Value
95% CI
Placebo
0.1501
± 0.7552
Erenumab
-0.5278
± 1.2592
EOS
Group
Value
95% CI
Placebo
-0.1961
± 0.7673
Erenumab
0.0570
± 1.1286
Mean Change From Baseline in Creatine Kinase at Day 8, Day 9 and EOSSecondary· Part B randomization baseline and day 8, day 9 and EOS (week 12).
Creatine Kinase was assessed during Part B of the study, and the mean change from baseline is presented for samples taken prior to administration of PACAP-38 on day 8 (pre-PACAP-38 dose), and following administration of PACAP-38 on day 9. The mean change from baseline is also presented for the EOS assessment.
Day 8 (Pre-PACAP-38 dose)
Group
Value
95% CI
Placebo
5.8
± 21.0
Erenumab
-22.4
± 51.5
Day 9 (Post-PACAP-38 dose)
Group
Value
95% CI
Placebo
-16.8
± 9.1
Erenumab
-59.3
± 65.7
EOS
Group
Value
95% CI
Placebo
8.1
± 25.3
Erenumab
-24.9
± 79.9
Mean Change From Baseline in Creatinine at Day 8, Day 9 and EOSSecondary· Part B randomization baseline and day 8, day 9 and EOS (week 12).
Creatinine was assessed during Part B of the study, and the mean change from baseline is presented for samples taken prior to administration of PACAP-38 on day 8 (pre-PACAP-38 dose), and following administration of PACAP-38 on day 9. The mean change from baseline is also presented for the EOS assessment.
Day 8 (Pre-PACAP-38 dose)
Group
Value
95% CI
Placebo
-1.9890
± 6.0835
Erenumab
-2.2526
± 3.1121
Day 9 (Post-PACAP-38 dose)
Group
Value
95% CI
Placebo
0.1450
± 7.3859
Erenumab
-1.4733
± 3.4367
EOS
Group
Value
95% CI
Placebo
3.5151
± 7.8109
Erenumab
-0.3457
± 2.6598
Adverse events — posted to ClinicalTrials.gov
Time frame: From first dose of investigational product (placebo or erenumab) up to 85 days (up to 12 weeks)..
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
Phase I, Randomized, Parallel-group, Double-Blind, Placebo-Controlled, Single Dose Study to Evaluate the Blockade of CGRP Receptor by AMG 334 in Preventing PACAP-38 Induced Migraine-like Attacks in Migraine Patients.
Publications & conference data
2 peer-reviewed publications reference this trial (live from Europe PMC):
NCT05281770 — Monoclonal CGRP Antibodies for Migraine Prevention - a Nationwide Real Life Study
· unknown
NCT05334927 — China HeadAche DIsorders RegiStry
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NCT05284019 — Real World Effectiveness of Eptinezumab in Participants With Migraine
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· terminated
NCT04970355 — Efficacy of Erenumab in Chronic Cluster Headache
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· completed
NCT04920331 — Study of Intravenous Erenumab in Patients With Status Migrainosus
· Phase 1
· withdrawn
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Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Amgen
Last refreshed: 3 June 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT02542605.