| Literature DB >> 35403223 |
Werner J Becker1, Sian Spacey2, Elizabeth Leroux3, Rose Giammarco4, Jonathan Gladstone5, Suzanne Christie6, Arash Akaberi7, G Sarah Power8, Jagdeep K Minhas9, Johanna Mancini7, Driss Rochdi10, Ayca Filiz10, Natacha Bastien10.
Abstract
OBJECTIVES: To assess real-world effectiveness, safety, and usage of erenumab in Canadian patients with episodic and chronic migraine with prior ineffective prophylactic treatments.Entities:
Keywords: chronic migraine; effectiveness; episodic migraine; erenumab; real-world
Mesh:
Substances:
Year: 2022 PMID: 35403223 PMCID: PMC9320807 DOI: 10.1111/head.14291
Source DB: PubMed Journal: Headache ISSN: 0017-8748 Impact factor: 5.311
FIGURE 1Study design. *70 mg or 140 mg erenumab decided at the prescribing physician’s discretion
FIGURE 2Subject disposition
Baseline characteristics
| Participants ( | |
|---|---|
| Sex, | |
| Female | 76 (80.0) |
| Male | 19 (20.0) |
| Age at enrollment (years) | |
| Mean (SD) | 41.4 (11.3) |
| Median (IQR) | 42.8 (32.1, 50.8) |
| Number missing | 0 |
| Age at migraine onset (years) | |
| Mean (SD) | 19.4 (10.7) |
| Median (IQR) | 17.4 (11.8, 24.5) |
| Number missing | 0 |
| Age at migraine diagnosis (years) | |
| Mean (SD) | 27.1 (10.9) |
| Median (IQR) | 26.5 (19.5, 33.8) |
| Number missing | 2 |
| Migraine type, | |
| Chronic migraine | 64 (67.4) |
| Episodic migraine | 31 (32.6) |
| Erenumab dose at initiation, | |
| 70 mg | 6 (6.3) |
| 140 mg | 89 (93.7) |
| Medication overuse during screening period, | |
| No | 27 (28.4) |
| Yes | 68 (71.6) |
| Migraine with aura, | |
| Never | 36 (37.9) |
| Rarely | 17 (17.9) |
| Unsure | 1 (1.1) |
| Yes—always | 9 (9.5) |
| Yes—sometimes | 32 (33.7) |
| Number of prior categories of prophylactic migraine therapies with inadequate efficacy, | |
| 2 | 52 (54.7) |
| 3 | 31 (32.6) |
| 4 | 11 (11.6) |
| 5 | 0 (0.0) |
| 6 | 1 (1.1) |
| Type of prior categories of prophylactic migraine therapies with inadequate efficacy, | |
| Divalproex sodium, sodium valproate | 3 (3.2) |
| Topiramate | 64 (67.4) |
| Beta blockers | 41 (43.2) |
| Tricyclic antidepressants and venlafaxine | 78 (82.1) |
| Flunarizine or verapamil | 12 (12.6) |
| Candesartan or lisinopril | 28 (29.5) |
| Pizotifen | 1 (1.1) |
| Botulinum toxin | 20 (21.1) |
Abbreviations: IQR, interquartile range; SD, standard deviation.
Treatment effectiveness
| Screening period baseline ( | Week 12 ( | Week 24 ( | |
|---|---|---|---|
| ≥50% reduction in MMD, | |||
| No | – | 54 (56.8) | 43 (50.0) |
| Yes | – | 32 (33.7) | 30 (34.9) |
| Number missing | – | 9 (9.5) | 13 (15.1) |
| MMD | |||
| Mean (SD) | 15.7 (6.1) | 10.4 (7.7) | 9.7 (6.7) |
| Median (IQR) | 14.0 (11.2, 19.0) | 9.0 (4.0, 14.6) | 8.52 (4.7, 12.3) |
| Number missing, | 0 | 9 (9.5) | 13 (15.1) |
| MMD changes from baseline | |||
| Mean (SD) | – | −4.9 (5.8) | −5.7 (6.1) |
| Median (IQR) | – | −4.6 (−8.0, −1.0) | −5.0 (−9.3, −1.8) |
| Number missing, | – | 9 (9.5) | 13 (15.1) |
| P‐GIC, | |||
| 1‐Very much improved | – | 11 (11.6) | 15 (17.4) |
| 2‐Much improved | – | 28 (29.5) | 20 (23.3) |
| 3‐Minimally improved | – | 23 (24.2) | 10 (11.6) |
| 4‐No change | – | 7 (7.4) | 5 (5.8) |
| 5‐Minimally worse | – | 2 (2.1) | 1 (1.2) |
| 6‐Much worse | – | 1 (1.1) | 0 (0.0) |
| Number missing | – | 23 (24.2) | 35 (40.7) |
| CGI‐S | |||
| 0‐Not assessed | 1 (1.1) | 5 (5.3) | 3 (3.5) |
| 1‐Normal, not at all ill | 28 (29.5) | 23 (24.2) | 21 (24.4) |
| 2‐Borderline mentally ill | 1 (1.1) | 16 (16.8) | 19 (22.1) |
| 3‐Mildly ill | 15 (15.8) | 22 (23.2) | 18 (20.9) |
| 4‐Moderately ill | 29 (30.5) | 23 (24.2) | 16 (18.6) |
| 5‐Markedly ill | 12 (12.6) | 3 (3.2) | 2 (2.3) |
| 6‐Severely ill | 7 (7.4) | 1 (1.1) | 1 (1.2) |
| 7‐Among the most extremely ill patients | 2 (2.1) | 1 (1.1) | 0 (0.0) |
| Number missing | 0 (0.0) | 1 (1.1) | 6 (7.0) |
| CGI‐I, | |||
| 0‐Not assessed | – | 2 (2.1) | 2 (2.3) |
| 1‐Very much improved | – | 24 (25.3) | 27 (31.4) |
| 2‐Much improved | – | 37 (38.9) | 25 (29.1) |
| 3‐Minimally improved | – | 17 (17.9) | 15 (17.4) |
| 4‐No change | – | 14 (14.7) | 9 (10.5) |
| 5‐Minimally worse | – | 0 (0.0) | 2 (2.3) |
| Number missing | – | 1 (1.1) | 6 (7.0) |
Abbreviations: CGI‐I, Clinical Global Impressions‐Improvement; CGI‐S, Clinical Global Impressions‐Severity; IQR, interquartile range; MMD, monthly migraine days; P‐GIC, Patient Global Impression of Change; SD, standard deviation.
CGI‐S was used to assess the severity of psychopathology related to migraine.
Changes from baseline were calculated only for patients where both the data at baseline and other timepoints (12 and 24 weeks) were available.
Summary of adverse events
| All AEs | SAEs | |||
|---|---|---|---|---|
| Participants ( | Events ( | Participants ( | Events ( | |
| Any AE, | ||||
| Yes | 23 (24.0) | 34 (100.0) | 1 (1.0) | 1 (100.0) |
| Status, | ||||
| Ended | 12 (12.5) | 19 (55.9) | 1 (1.0) | 1 (100.0) |
| Ongoing | 11 (11.5) | 15 (44.1) | 0 (0.0) | 0 (0.0) |
| Severity, | ||||
| Mild | 20 (20.8) | 30 (88.2) | 1 (1.0) | 1 (100.0) |
| Moderate | 3 (3.1) | 3 (8.8) | 0 (0.0) | 0 (0.0) |
| Number of missing | 1 (1.0) | 1 (2.9) | 0 (0.0) | 0 (0.0) |
| Action taken with erenumab drug, | ||||
| Concomitant drug taken | 4 (4.2) | 7 (20.6) | 1 (1.0) | 1 (100.0) |
| Erenumab permanently discontinued due to this adverse event | 3 (3.1) | 3 (8.8) | 0 (0.0) | 0 (0.0) |
| No action taken | 16 (16.7) | 23 (67.7) | 0 (0.0) | 0 (0.0) |
| Non‐drug therapy given | 1 (1.0) | 1 (2.9) | 0 (0.0) | 0 (0.0) |
| What was the outcome of the subject/adverse event, | ||||
| Completely recovered | 11 (11.5) | 18 (52.9) | 1 (1.0) | 1 (100.0) |
| Condition improving | 7 (7.3) | 7 (20.6) | 0 (0.0) | 0 (0.0) |
| Condition still present and unchanged | 7 (7.3) | 9 (26.5) | 0 (0.0) | 0 (0.0) |
| Subject recovered with sequelae, | ||||
| No | 9 (9.4) | 15 (83.3) | 1 (1.0) | 1 (100.0) |
| Yes | 2 (2.1) | 2 (11.1) | 0 (0.0) | 0 (0.0) |
| Number of missing | 1 (1.0) | 1 (5.6) | 0 (0.0) | 0 (0.0) |
| Assessment of causality to erenumab, | ||||
| Not suspected | 9 (9.4) | 12 (35.3) | 0 (0.0) | 0 (0.0) |
| Suspected | 15 (15.6) | 22 (64.7) | 1 (1.0) | 1 (100.0) |
| AE seriousness assessment, | ||||
| Death | 0 (0.0) | – | 0 (0.0) | – |
| Life threatening | 0 (0.0) | – | 0 (0.0) | – |
| Involved or prolonged inpatient hospitalization | 0 (0.0) | – | 0 (0.0) | – |
| Involved persistent or significant disability or incapacity | 0 (0.0) | – | 0 (0.0) | – |
| Other seriousness criteria | 1 (1.0) | – | 1 (1.0) | – |
| Congenital anomaly/birth defect | 0 (0.0) | – | 0 (0.0) | – |
| Other significant medical events | 0 (0.0) | – | 0 (0.0) | – |
Abbreviations: AE, adverse event; SAE, serious adverse event.
One subject received erenumab before the end of the screening period and was therefore not eligible for this study. However, this subject was included in the safety analyses.
One mild case of rectal hemorrhage was reported as an SAE.