The Placebo Effect in Chronic Thromboembolic Pulmonary Hypertension Trials: A Systematic Review and Meta-Analysis
Abstract
:1. Introduction
2. Methods
3. Results
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
References
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Trial | N Placebo Arm | Age (Mean/SD or Median/IQR) | % Females | BMI | Background PH Therapy | PEA/BPA | Follow-Up |
---|---|---|---|---|---|---|---|
BENEFiT [14] | 80 | 63.1 ± 10.3 | 58.8 | N/A | N/A | PEA 27.5% | 16 weeks |
Suntharalingam et al. [15] | 10 | 60.0 ± 14.4 | 30 | 29.8 ± 6.1 | N/A | PEA 70% | 12 weeks |
CHEST-1 [7] | 88 | 59 ± 13 | 61 | 28 ±5 | N/A | PEA 23% | 16 weeks |
MERIT-1 [8] | 40 | 56.9 ± 13.9 | 63 | 26.2 ± 4.0 | 63% | N/A | 24 weeks |
AMBER 1 [16] | 13 | 59.8 ± 9 | 63 | 27.1 ± 6.8 | 0% | 0% | 16 weeks |
Tanabe et al. [17] | 9 | 60 ± 5 | 77.8 | N/A | 55.6% | PEA 11.1% | 17 weeks |
Ogo et al. [18] | 39 | 68.3 ± 9.6 | 74.4 | N/A | 66.7% | PEA 12.8% BPA 56.4% | 20 weeks |
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Caldeira, D.; Cazeiro, D.I.; Plácido, R.; Ferreira, F.; Calé, R.; Pinto, F.J. The Placebo Effect in Chronic Thromboembolic Pulmonary Hypertension Trials: A Systematic Review and Meta-Analysis. Med. Sci. 2025, 13, 57. https://doi.org/10.3390/medsci13020057
Caldeira D, Cazeiro DI, Plácido R, Ferreira F, Calé R, Pinto FJ. The Placebo Effect in Chronic Thromboembolic Pulmonary Hypertension Trials: A Systematic Review and Meta-Analysis. Medical Sciences. 2025; 13(2):57. https://doi.org/10.3390/medsci13020057
Chicago/Turabian StyleCaldeira, Daniel, Daniel Inácio Cazeiro, Rui Plácido, Filipa Ferreira, Rita Calé, and Fausto J. Pinto. 2025. "The Placebo Effect in Chronic Thromboembolic Pulmonary Hypertension Trials: A Systematic Review and Meta-Analysis" Medical Sciences 13, no. 2: 57. https://doi.org/10.3390/medsci13020057
APA StyleCaldeira, D., Cazeiro, D. I., Plácido, R., Ferreira, F., Calé, R., & Pinto, F. J. (2025). The Placebo Effect in Chronic Thromboembolic Pulmonary Hypertension Trials: A Systematic Review and Meta-Analysis. Medical Sciences, 13(2), 57. https://doi.org/10.3390/medsci13020057