Low-Dose Propranolol versus Amitriptyline for Episodic Migraine Prophylaxis: A Randomized Controlled Trial Assessing...

Direct head-to-head evidence of propranolol and amitriptyline for migraine prophylaxis is limited. This clinical trial compared the efficacy, safety, and cost-effectiveness of low-dose propranolol versus amitriptyline for episodic migraine prophylaxis over a 3-month period.

This randomized, controlled, open-label, prospective, parallel, single-center trial was conducted at a tertiary care hospital in India. A total of 60 prophylaxis-naïve patients with episodic migraine were randomized 1:1 to receive either low-dose propranolol (80 mg/day) or amitriptyline (10 mg/day). The primary outcome was the improvement in the monthly headache frequency at 3 months from baseline, while the secondary outcomes included improvements from baseline in the proportions of patients achieving a ≥ 50% reduction in monthly headache days, headache severity, headache-induced disability, monthly rescue medication intake, quality of life, and cost-effectiveness (measured by the average cost-effectiveness ratio [ACER] and incremental cost-effectiveness ratio [ICER]).

At 3 months, propranolol showed a significantly greater reduction in monthly headache frequency compared with amitriptyline (- 3.67 ± 1.47 versus -  2.87 ± 1.36 days, P = 0.03). More patients in the propranolol group (60%) achieved a ≥ 50% reduction in monthly headache days compared with the amitriptyline group (43.33%) (P = 0.02). Propranolol also showed a greater reduction in monthly rescue medication intake (P = 0.01), but differences in headache severity, headache-induced disability, and quality of life were not significant. Both groups experienced mild adverse drug reactions. Cost-effectiveness analysis revealed propranolol had a higher ACER (US $5.44) and ICER (US $0.40/1% reduction) than amitriptyline.

In our trial, low-dose propranolol demonstrated superior efficacy to amitriptyline in episodic migraine prophylaxis. Both drugs were well tolerated. Our study suggests that amitriptyline was more cost-effective than propranolol.

Clinical Trial Registry-India (Date: 27 October 2020; registration no.: CTRI/2020/01/022972).