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Impact of Aficamten on Echocardiographic Cardiac Structure and Function in Symptomatic Obstructive Hypertrophic Cardiomyopathy

Hegde, Sheila M., Claggett, Brian L., Wang, Xiaowen, Jering, Karola, Prasad, Narayana, Roshanali, Farideh, Masri, Ahmad, Nassif, Michael E., Barriales-Villa, Roberto, Abraham, Theodore P., Cardim, Nuno, Coats, Caroline J., Kramer, Christopher M., Maron, Martin S., Michels, Michelle, Olivotto, Iacopo, Saberi, Sara, Jacoby, Daniel L., Heitner, Stephen B., Kupfer, Stuart, Meng, Lisa, Wohltman, Amy, Malik, Fady I., Solomon, Scott D.·2024·Journal of the American College of Cardiology
DOI 10.1016/j.jacc.2024.08.002
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(A) Left ventricular out fl ow tract (LVOT) gradient at rest over time. (B) LVOT gradient with Valsalva over time. (C) Left ventricular ejection fraction (LVEF) over time. (D) Left atrial (LA) volume index over time. (C) LVOT gradient at rest over time. (D) LVOT gradient with Valsalva over time. (E) Lateral early diastolic mitral annular velocity (e ʹ ) over time. (F) Septal e ʹ velocity over time. (G) Lateral ratio between early mitral in fl ow velocity and early diastolic mitral annular velocity (E/e ʹ ) over time. (H) Lateral E/e ʹ over time. Vertical dashed line indicates treatment period of 24 weeks followed by a 4-week washout period. P values re fl ect placebo-corrected treatment difference at 24 weeks compared with baseline adjusted for strati fi cation by beta-blockers and cardiopulmonary exercise testing mode (bicycle vs treadmill). A and B adapted with permission from Massachusetts Medical Society from Maron et al. 14
(A) Left ventricular out fl ow tract (LVOT) gradient at rest over time. (B) LVOT gradient with Valsalva over time. (C) Left ventricular ejection fraction (LVEF) over time. (D) Left atrial (LA) volume index over time. (C) LVOT gradient at rest over time. (D) LVOT gradient with Valsalva over time. (E) Lateral early diastolic mitral annular velocity (e ʹ ) over time. (F) Septal e ʹ velocity over time. (G) Lateral ratio between early mitral in fl ow velocity and early diastolic mitral annular velocity (E/e ʹ ) over time. (H) Lateral E/e ʹ over time. Vertical dashed line indicates treatment period of 24 weeks followed by a 4-week washout period. P values re fl ect placebo-corrected treatment difference at 24 weeks compared with baseline adjusted for strati fi cation by beta-blockers and cardiopulmonary exercise testing mode (bicycle vs treadmill). A and B adapted with permission from Massachusetts Medical Society from Maron et al. 14CC-BY-NC-ND · From the PDF
(A) Prevalence of abnormal LV diastolic function measures (septal e ʹ or lateral e ʹ , average E/e ʹ , left atrial volume index [LAVI]) at baseline and 24 weeks by treatment group. (B) Change in number of patients and number of abnormal LV diastolic function measures by treatment group. Figures created with https:// fl ourish.studio/. Abbreviations as in Figure 1 .
(A) Prevalence of abnormal LV diastolic function measures (septal e ʹ or lateral e ʹ , average E/e ʹ , left atrial volume index [LAVI]) at baseline and 24 weeks by treatment group. (B) Change in number of patients and number of abnormal LV diastolic function measures by treatment group. Figures created with https:// fl ourish.studio/. Abbreviations as in Figure 1 .CC-BY-NC-ND · From the PDF
(A) Left ventricular (LV) global longitudinal strain over time. (B) LV global circumferential strain over time. Vertical dashed line indicates treatment period of 24 weeks followed by a 4-week washout period. P values re fl ect placebo-corrected treatment difference at 24 weeks compared with baseline adjusted for strati fi cation by beta-blockers and cardiopulmonary exercise testing mode (bicycle vs treadmill). Absolute strain values are presented.
(A) Left ventricular (LV) global longitudinal strain over time. (B) LV global circumferential strain over time. Vertical dashed line indicates treatment period of 24 weeks followed by a 4-week washout period. P values re fl ect placebo-corrected treatment difference at 24 weeks compared with baseline adjusted for strati fi cation by beta-blockers and cardiopulmonary exercise testing mode (bicycle vs treadmill). Absolute strain values are presented.CC-BY-NC-ND · From the PDF
The change in LV global circumferential strain (GCS) is associated with change in LVEF in a regression model additionally adjusted for baseline LV GCS, LVEF, resting LVOT gradient, Valsalva LVOT gradient, average E/e ʹ , and the randomization strati fi cation factors (beta-blocker use, cardiopulmonary exercise testing modality). Abbreviations as in Figure 1 .
The change in LV global circumferential strain (GCS) is associated with change in LVEF in a regression model additionally adjusted for baseline LV GCS, LVEF, resting LVOT gradient, Valsalva LVOT gradient, average E/e ʹ , and the randomization strati fi cation factors (beta-blocker use, cardiopulmonary exercise testing modality). Abbreviations as in Figure 1 .CC-BY-NC-ND · From the PDF
Image 5
CC-BY-NC-ND · From the PDF

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Authors
Hegde, S. M., Claggett, B. L., Wang, X., Jering, K., Prasad, N., Roshanali, F., Masri, A., Nassif, M. E., Barriales-Villa, R., Abraham, T. P., Cardim, N., Coats, C. J., Kramer, C. M., Maron, M. S., Michels, M., Olivotto, I., Saberi, S., Jacoby, D. L., Heitner, S. B., Kupfer, S., Meng, L., Wohltman, A., Malik, F. I., & Solomon, S. D.
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
2024-11
Volume
84
Issue
19
Pages
1789-1802
ISSN
0735-1097
DOI
10.1016/j.jacc.2024.08.002
Cited by
47
References
2
Language
en
Licence
Funders
Cytokinetics Inc

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CoChat. (2026). Citation check: Impact of Aficamten on Echocardiographic Cardiac Structure and Function in Symptomatic Obstructive Hypertrophic Cardiomyopathy. https://app.cochat.ai/papers/10.1016/j.jacc.2024.08.002
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Hegde, S. M., Claggett, B. L., Wang, X., Jering, K., Prasad, N., Roshanali, F., Masri, A., Nassif, M. E., Barriales-Villa, R., Abraham, T. P., Cardim, N., Coats, C. J., Kramer, C. M., Maron, M. S., Michels, M., Olivotto, I., Saberi, S., Jacoby, D. L., Heitner, S. B., . . . Solomon, S. D. (2024). Impact of Aficamten on Echocardiographic Cardiac Structure and Function in Symptomatic Obstructive Hypertrophic Cardiomyopathy. Journal of the American College of Cardiology. https://doi.org/10.1016/j.jacc.2024.08.002