Trial Outcomes & Findings for A Controlled Trial of Erenumab in Migraine Prevention (NCT NCT03812224)

NCT ID: NCT03812224

Last Updated: 2024-02-21

Results Overview

A migraine day was any calendar day in which the participant experienced a qualified migraine headache (onset, continuation, or recurrence of the migraine headache). A qualified migraine headache was defined either as a migraine with or without aura, lasting for ≥ 4 hours, and meeting at least 1 of the following criteria: 1. ≥ 2 of the following pain features: * unilateral * throbbing * moderate to severe * exacerbated with exercise/physical activity 2. ≥ 1 of the following associated symptoms: * nausea * vomiting * photophobia and phonophobia The change from baseline in monthly migraine days was calculated as the average number of migraine days per month during the last 3 months (months 4, 5, and 6) of the 24-week double-blind treatment period minus the number of migraine days during the 4-week baseline period.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

261 participants

Primary outcome timeframe

4-week baseline period and the last 3 months (months 4, 5, and 6) of the 24-week double-blind treatment period

Results posted on

2024-02-21

Participant Flow

This study was conducted at 41 centers in Japan. The study consisted of a 24-week double-blind treatment period (DBTP), a 28-week open-label treatment period (OLTP), followed by an 8-week safety follow-up (12 weeks after the last dose of investigational product).

Eligible participants were randomized 1:1 to erenumab 70 mg or placebo. Randomization was stratified by migraine type (episodic migraine \[EM\] / chronic migraine \[CM\]) and migraine preventive treatment status (ever used \[prior and/or current\] or never used).

Participant milestones

Participant milestones
Measure
Placebo QM
Participants randomized to receive placebo once a month (QM) for 24 weeks during the double-blind treatment period followed by erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Erenumab 70 mg QM
Participants randomized to receive erenumab 70 mg once a month for 24 weeks during the double-blind treatment period followed by erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Double-blind Treatment Period
STARTED
131
130
Double-blind Treatment Period
COMPLETED
127
127
Double-blind Treatment Period
NOT COMPLETED
4
3
Open-label Treatment Period
STARTED
127
127
Open-label Treatment Period
COMPLETED
125
124
Open-label Treatment Period
NOT COMPLETED
2
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo QM
Participants randomized to receive placebo once a month (QM) for 24 weeks during the double-blind treatment period followed by erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Erenumab 70 mg QM
Participants randomized to receive erenumab 70 mg once a month for 24 weeks during the double-blind treatment period followed by erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Double-blind Treatment Period
Withdrawal by Subject
4
2
Double-blind Treatment Period
Decision by Sponsor
0
1
Open-label Treatment Period
Withdrawal by Subject
2
2
Open-label Treatment Period
Decision by Sponsor
0
1

Baseline Characteristics

A Controlled Trial of Erenumab in Migraine Prevention

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo QM
n=131 Participants
Participants randomized to receive placebo once a month (QM) for 24 weeks during the double-blind treatment period followed by erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Erenumab 70 mg QM
n=130 Participants
Participants randomized to receive erenumab 70 mg once a month for 24 weeks during the double-blind treatment period followed by erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Total
n=261 Participants
Total of all reporting groups
Age, Continuous
44.6 years
STANDARD_DEVIATION 9.3 • n=5 Participants
44.2 years
STANDARD_DEVIATION 8.5 • n=7 Participants
44.4 years
STANDARD_DEVIATION 8.9 • n=5 Participants
Sex: Female, Male
Female
116 Participants
n=5 Participants
111 Participants
n=7 Participants
227 Participants
n=5 Participants
Sex: Female, Male
Male
15 Participants
n=5 Participants
19 Participants
n=7 Participants
34 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
131 Participants
n=5 Participants
130 Participants
n=7 Participants
261 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Asian
131 Participants
n=5 Participants
130 Participants
n=7 Participants
261 Participants
n=5 Participants
Migraine Type
Episodic migraine
80 Participants
n=5 Participants
79 Participants
n=7 Participants
159 Participants
n=5 Participants
Migraine Type
Chronic migraine
51 Participants
n=5 Participants
51 Participants
n=7 Participants
102 Participants
n=5 Participants
Prior Migraine Preventive Treatment Status
Ever used (including prior and/or current users)
100 Participants
n=5 Participants
100 Participants
n=7 Participants
200 Participants
n=5 Participants
Prior Migraine Preventive Treatment Status
Never used
31 Participants
n=5 Participants
30 Participants
n=7 Participants
61 Participants
n=5 Participants
Monthly Migraine Days
11.84 days / month
STANDARD_DEVIATION 5.70 • n=5 Participants
12.40 days / month
STANDARD_DEVIATION 5.99 • n=7 Participants
12.12 days / month
STANDARD_DEVIATION 5.84 • n=5 Participants

PRIMARY outcome

Timeframe: 4-week baseline period and the last 3 months (months 4, 5, and 6) of the 24-week double-blind treatment period

Population: The efficacy analysis set included randomized participants who received at least 1 dose of investigational product and had at least 1 change from baseline measurement in MMD during the DBTP. Observed data.

A migraine day was any calendar day in which the participant experienced a qualified migraine headache (onset, continuation, or recurrence of the migraine headache). A qualified migraine headache was defined either as a migraine with or without aura, lasting for ≥ 4 hours, and meeting at least 1 of the following criteria: 1. ≥ 2 of the following pain features: * unilateral * throbbing * moderate to severe * exacerbated with exercise/physical activity 2. ≥ 1 of the following associated symptoms: * nausea * vomiting * photophobia and phonophobia The change from baseline in monthly migraine days was calculated as the average number of migraine days per month during the last 3 months (months 4, 5, and 6) of the 24-week double-blind treatment period minus the number of migraine days during the 4-week baseline period.

Outcome measures

Outcome measures
Measure
Placebo QM
n=128 Participants
Participants received placebo once a month for 24 weeks during the double-blind treatment period.
Erenumab 70 mg QM
n=129 Participants
Participants received erenumab 70 mg once a month for 24 weeks during the double-blind treatment period.
Change From Baseline in Mean Monthly Migraine Days (MMD) Over Months 4, 5, and 6 of the Double-blind Treatment Period
-1.98 migraine days / month
Interval -2.72 to -1.24
-3.60 migraine days / month
Interval -4.36 to -2.85

SECONDARY outcome

Timeframe: 4-week baseline period and the last 3 months (months 4, 5, and 6) of the 24-week double-blind treatment period

Population: Efficacy analysis set; participants with missing data were counted as non-responders.

A migraine day was any calendar day in which the participant experienced a qualified migraine headache (onset, continuation, or recurrence of the migraine headache). A qualified migraine headache was defined either as a migraine with or without aura, lasting for ≥ 4 hours, and meeting at least 1 of the following criteria: 1. ≥ 2 of the following pain features: * unilateral * throbbing * moderate to severe * exacerbated with exercise/physical activity 2. ≥ 1 of the following associated symptoms: * nausea * vomiting * photophobia and phonophobia

Outcome measures

Outcome measures
Measure
Placebo QM
n=131 Participants
Participants received placebo once a month for 24 weeks during the double-blind treatment period.
Erenumab 70 mg QM
n=130 Participants
Participants received erenumab 70 mg once a month for 24 weeks during the double-blind treatment period.
Percentage of Participants With at Least a 50% Reduction From Baseline in Mean Monthly Migraine Days Over Months 4, 5, and 6 of the DBTP
16.8 percentage of participants
31.5 percentage of participants

SECONDARY outcome

Timeframe: 4-week baseline period and the last 3 months (months 4, 5, and 6) of the 24-week double-blind treatment period

Population: Efficacy analysis set; observed data

An acute migraine-specific medication treatment day is any calendar day during which a participant took a migraine-specific medication (e.g., triptan or ergotamine). The change from baseline in monthly acute migraine-specific treatment days was calculated as the average number of migraine-specific treatment days per month during the last 3 months of the 24-week double-blind treatment period minus the number of migraine-specific treatment days during the 4-week baseline period.

Outcome measures

Outcome measures
Measure
Placebo QM
n=128 Participants
Participants received placebo once a month for 24 weeks during the double-blind treatment period.
Erenumab 70 mg QM
n=129 Participants
Participants received erenumab 70 mg once a month for 24 weeks during the double-blind treatment period.
Change From Baseline in Mean Monthly Acute Migraine-specific Medication Treatment Days Over Months 4, 5, and 6 of the DBTP
-1.10 days / month
Interval -1.74 to -0.46
-2.57 days / month
Interval -3.21 to -1.93

Adverse Events

Double-blind Treatment Period: Placebo QM

Serious events: 2 serious events
Other events: 40 other events
Deaths: 0 deaths

Double-blind Treatment Period: Erenumab 70 mg QM

Serious events: 2 serious events
Other events: 44 other events
Deaths: 0 deaths

Open-label Treatment Period: Erenumab 70 mg QM

Serious events: 7 serious events
Other events: 62 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Double-blind Treatment Period: Placebo QM
n=131 participants at risk
Participants received placebo once a month for 24 weeks during the double-blind treatment period.
Double-blind Treatment Period: Erenumab 70 mg QM
n=130 participants at risk
Participants received erenumab 70 mg once a month for 24 weeks during the double-blind treatment period.
Open-label Treatment Period: Erenumab 70 mg QM
n=254 participants at risk
Participants received erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Infections and infestations
Appendicitis
0.76%
1/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Brain contusion
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.77%
1/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Clavicle fracture
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.77%
1/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Skull fracture
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.77%
1/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Wound
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.77%
1/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Musculoskeletal and connective tissue disorders
Intervertebral disc protrusion
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.77%
1/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Ovarian adenoma
0.76%
1/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Nervous system disorders
Subarachnoid haemorrhage
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.77%
1/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Infections and infestations
Tonsillitis
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Foot fracture
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Meniscus injury
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Injury, poisoning and procedural complications
Tendon rupture
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Musculoskeletal and connective tissue disorders
Osteoarthritis
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Musculoskeletal and connective tissue disorders
Spinal osteoarthritis
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Respiratory, thoracic and mediastinal disorders
Laryngeal oedema
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Skin and subcutaneous tissue disorders
Drug eruption
0.00%
0/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.00%
0/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
0.39%
1/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).

Other adverse events

Other adverse events
Measure
Double-blind Treatment Period: Placebo QM
n=131 participants at risk
Participants received placebo once a month for 24 weeks during the double-blind treatment period.
Double-blind Treatment Period: Erenumab 70 mg QM
n=130 participants at risk
Participants received erenumab 70 mg once a month for 24 weeks during the double-blind treatment period.
Open-label Treatment Period: Erenumab 70 mg QM
n=254 participants at risk
Participants received erenumab 70 mg once a month for 28 weeks during the open-label treatment period.
Musculoskeletal and connective tissue disorders
Back pain
4.6%
6/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
5.4%
7/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
2.4%
6/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Gastrointestinal disorders
Constipation
1.5%
2/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
4.6%
6/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
5.1%
13/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
Infections and infestations
Nasopharyngitis
28.2%
37/131 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
26.9%
35/130 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).
19.3%
49/254 • DBTP: From first dose of study drug up to the first dose of open-label study drug (24 weeks) for participants who entered the OLTP, or up to 12 weeks after the last dose (up to 32 weeks) for participants who did not enter the OLTP. OLTP: From first dose of study drug in the OLTP up to 12 weeks after last dose (up to 36 weeks).

Additional Information

Study Director

Amgen Inc.

Phone: 866-572-6436

Results disclosure agreements

  • Principal investigator is a sponsor employee The Clinical Trial Agreement generally does not restrict an investigator's discussion of trial results after completion. The Agreement permits Amgen a limited period of time to review material discussing trial results (typically up to 45 days and possible extension). Amgen may remove confidential information, but authors have final control and approval of publication content. For multicenter studies, the investigator agrees not to publish any results before the first multi-center publication.
  • Publication restrictions are in place

Restriction type: OTHER