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Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study.
J Ethnopharmacol. 2021 Jan 10; 264:113276.JE

Abstract

ETHNOPHARMACOLOGICAL RELEVANCE

Ashwagandha (Withania somnifera (L.) Dunal.) is long known for its sleep-inducing effects. Ashwagandha can be proposed as an alternative to the recommended present treatments for insomnia. This study aimed to evaluate the pharmacological effect of Ashwagandha root extract on sleep in healthy subjects and also in the subjects having insomnia.

MATERIAL AND METHODS

We performed a randomized, parallel-group, stratified design, placebo-controlled study. A total of 80 eligible participants, 40 in Arm-A (healthy) and 40 in Arm-B (insomnia) were assigned to two groups, either Ashwagandha or placebo and studied for 8-weeks. The assessment was done based on the sleep parameters (Sleep Onset Latency, Total Sleep Time, Wake After Sleep Onset, Total time in bed, and Sleep Efficiency), Pittsburgh Sleep Quality Index and Hamilton Anxiety scale-A questionnaire, mental alertness on rising assessment, and sleep quality questionnaire. Safety and adverse events along with the concomitant medication were also assessed.

RESULTS

In both healthy and insomnia subjects, there was a significant improvement in the sleep parameters in the Ashwagandha root extract supplemented group. The improvement was found more significant in insomnia subjects than healthy subjects. Repeat measure Analysis of variance (ANOVA) confirmed the significant improvement in SOL (p 0.013), HAM-A outcomes (p < 0.05), mental alertness (p 0.01), and sleep quality (p < 0.05) of the insomnia patients. A two-way ANOVA was used to confirm the outcomes that denoted sleep onset latency (p < 0.0001) and sleep efficiency (p < 0.0001) as the most improved parameters, followed by TST (p < 0.002) and WASO(p < 0.040). All these parameters (SOL, TST, WASO, TIB, SE, PSQI, HAM-A, Mental Alertness, and Sleep quality) were also statistically assessed for the significant improvement within the group both for the treatment, and the placebo groups in the healthy and the insomnia datasets. Obtained results suggest statistically significant (p < 0.0001) changes between the baseline values and the end of the study results except for the HAM-A and the mental alertness scoresn the healthy subject group.

CONCLUSION

The present study confirms that Ashwagandha root extract can improve sleep quality and can help in managing insomnia. Ashwagandha root extract was well tolerated by all the participants irrespective of their health condition and age. Additional clinical trials are required to generalize the outcome.

Authors+Show Affiliations

D Y Patil University School of Medicine, Navi Mumbai, 400706, Maharashtra, India. Electronic address: deepak.langade@dypatil.edu.D Y Patil University School of Medicine, Navi Mumbai, 400706, Maharashtra, India. Electronic address: vaishali.thakare@dypatil.edu.NAMO Medical Education and Research Institute, Silvassa, DNH&DD, India. Electronic address: rksubodh@gmail.com.Maharashtra Emergency Medical Services, Defence Area, Pimple Gurav, Pimpri-Chinchwad, 411027, Maharashtra, India. Electronic address: sunildrkelgane@gmail.com.

Pub Type(s)

Journal Article
Multicenter Study
Randomized Controlled Trial

Language

eng

PubMed ID

32818573

Citation

Langade, Deepak, et al. "Clinical Evaluation of the Pharmacological Impact of Ashwagandha Root Extract On Sleep in Healthy Volunteers and Insomnia Patients: a Double-blind, Randomized, Parallel-group, Placebo-controlled Study." Journal of Ethnopharmacology, vol. 264, 2021, p. 113276.
Langade D, Thakare V, Kanchi S, et al. Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study. J Ethnopharmacol. 2021;264:113276.
Langade, D., Thakare, V., Kanchi, S., & Kelgane, S. (2021). Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study. Journal of Ethnopharmacology, 264, 113276. https://doi.org/10.1016/j.jep.2020.113276
Langade D, et al. Clinical Evaluation of the Pharmacological Impact of Ashwagandha Root Extract On Sleep in Healthy Volunteers and Insomnia Patients: a Double-blind, Randomized, Parallel-group, Placebo-controlled Study. J Ethnopharmacol. 2021 Jan 10;264:113276. PubMed PMID: 32818573.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study. AU - Langade,Deepak, AU - Thakare,Vaishali, AU - Kanchi,Subodh, AU - Kelgane,Sunil, Y1 - 2020/08/17/ PY - 2019/09/29/received PY - 2020/06/23/revised PY - 2020/08/10/accepted PY - 2020/8/21/pubmed PY - 2021/3/2/medline PY - 2020/8/21/entrez KW - Actigraphy KW - Anxiety KW - Ashwagandha KW - Herbal medicine KW - Insomnia KW - Sleep onset latency SP - 113276 EP - 113276 JF - Journal of ethnopharmacology JO - J Ethnopharmacol VL - 264 N2 - ETHNOPHARMACOLOGICAL RELEVANCE: Ashwagandha (Withania somnifera (L.) Dunal.) is long known for its sleep-inducing effects. Ashwagandha can be proposed as an alternative to the recommended present treatments for insomnia. This study aimed to evaluate the pharmacological effect of Ashwagandha root extract on sleep in healthy subjects and also in the subjects having insomnia. MATERIAL AND METHODS: We performed a randomized, parallel-group, stratified design, placebo-controlled study. A total of 80 eligible participants, 40 in Arm-A (healthy) and 40 in Arm-B (insomnia) were assigned to two groups, either Ashwagandha or placebo and studied for 8-weeks. The assessment was done based on the sleep parameters (Sleep Onset Latency, Total Sleep Time, Wake After Sleep Onset, Total time in bed, and Sleep Efficiency), Pittsburgh Sleep Quality Index and Hamilton Anxiety scale-A questionnaire, mental alertness on rising assessment, and sleep quality questionnaire. Safety and adverse events along with the concomitant medication were also assessed. RESULTS: In both healthy and insomnia subjects, there was a significant improvement in the sleep parameters in the Ashwagandha root extract supplemented group. The improvement was found more significant in insomnia subjects than healthy subjects. Repeat measure Analysis of variance (ANOVA) confirmed the significant improvement in SOL (p 0.013), HAM-A outcomes (p < 0.05), mental alertness (p 0.01), and sleep quality (p < 0.05) of the insomnia patients. A two-way ANOVA was used to confirm the outcomes that denoted sleep onset latency (p < 0.0001) and sleep efficiency (p < 0.0001) as the most improved parameters, followed by TST (p < 0.002) and WASO(p < 0.040). All these parameters (SOL, TST, WASO, TIB, SE, PSQI, HAM-A, Mental Alertness, and Sleep quality) were also statistically assessed for the significant improvement within the group both for the treatment, and the placebo groups in the healthy and the insomnia datasets. Obtained results suggest statistically significant (p < 0.0001) changes between the baseline values and the end of the study results except for the HAM-A and the mental alertness scoresn the healthy subject group. CONCLUSION: The present study confirms that Ashwagandha root extract can improve sleep quality and can help in managing insomnia. Ashwagandha root extract was well tolerated by all the participants irrespective of their health condition and age. Additional clinical trials are required to generalize the outcome. SN - 1872-7573 UR - https://www.unboundmedicine.com/medline/citation/32818573/Clinical_evaluation_of_the_pharmacological_impact_of_ashwagandha_root_extract_on_sleep_in_healthy_volunteers_and_insomnia_patients:_A_double_blind_randomized_parallel_group_placebo_controlled_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0378-8741(20)33158-5 DB - PRIME DP - Unbound Medicine ER -