Withania Somnifera for Moderate-to-Severe Persistent Asthma (WISTA)

August 23, 2026 updated by: Priyam Singh, Aligarh Muslim University

Study on Anti-oxidative and Anti-Inflammatory Effects of Certain Herbs for Inflammatory Lung Diseases

This randomized, double-blind, placebo-controlled study evaluated Withania somnifera root powder as a complementary therapy in adults with moderate-to-severe persistent asthma receiving standard asthma treatment. Participants were assigned to standard treatment alone, standard treatment plus placebo, or standard treatment plus Withania somnifera root powder for 10 weeks. Lung function, asthma control, quality of life, systemic oxidative stress, and inflammatory and allergic biomarkers were assessed before and after the intervention to evaluate the potential additional benefits of Withania somnifera in asthma management.

Study Overview

Detailed Description

This randomized, double-blind, placebo-controlled clinical study was conducted at Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India. Adults aged 18-50 years with moderate-to-severe persistent asthma were included in the study. Eligible participants were non-smokers and were receiving standard asthma medication. Patients with recent respiratory tract infection, pregnancy or lactation, serious comorbid conditions, or hospitalization within the previous month were excluded.

Participants were allocated using computer-generated randomization to three groups: a control group receiving conventional asthma treatment, a placebo group receiving conventional treatment plus starch capsules, and a Withania somnifera-treated group receiving conventional treatment plus Withania somnifera root powder capsules. The Withania somnifera intervention consisted of 300 mg root powder administered orally twice daily for 10 weeks.

Clinical assessments were performed at baseline and after the 10-week intervention. Lung function was evaluated by spirometry using FEV1 percent predicted, FVC percent predicted, and the FEV1/FVC ratio. Asthma control was assessed using the Asthma Control Test, and quality of life was evaluated using the Asthma Quality of Life Questionnaire.

Blood samples were collected for assessment of systemic oxidative stress, inflammation, and allergic markers. Evaluations included total antioxidant capacity, malondialdehyde, total sulfhydryl groups, neutrophil and eosinophil percentages, and circulating IL-4, IL-8, IL-13, IL-17A, and IgE levels. Plasma samples were stored at -80°C until laboratory analysis.

The study was reviewed and approved by the Institutional Ethical Committee of Jawaharlal Nehru Medical College, Aligarh Muslim University (IECJNMC/628), and written informed consent was obtained from the participants.

Study Type

Interventional

Enrollment (Actual)

120

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Uttar Pradesh
      • Aligarh, Uttar Pradesh, India, 202001
        • Aligarh Muslim University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 18 to 50 years Moderate to severe persistent asthma Non-smokers Receiving standard asthma medications for no more than one month

Exclusion Criteria:

  • Recent respiratory tract infection Pregnant or lactating women Serious comorbid conditions Hospitalization within the previous one month

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Withania somnifera Treatment Group
Participants received standard asthma treatment plus Withania somnifera root powder capsules, 300 mg orally twice daily for 10 weeks.
Withania somnifera root powder was administered orally in capsule form at a dose of 300 mg twice daily (total daily dose 600 mg) for 10 weeks, in addition to standard asthma treatment.
Standard asthma treatment included inhaled corticosteroid (fluticasone) and long-acting beta-agonist therapy according to the treating physician's prescription.
Placebo Comparator: Placebo Group
Participants received standard asthma treatment plus starch placebo capsules orally for 10 weeks.
Standard asthma treatment included inhaled corticosteroid (fluticasone) and long-acting beta-agonist therapy according to the treating physician's prescription.
Starch placebo capsules were administered orally for 10 weeks in addition to standard asthma treatment.
Active Comparator: Control Group
Participants received standard conventional asthma treatment, including inhaled corticosteroid (fluticasone) and long-acting beta-agonist therapy, according to the treating physician's prescription.
Standard asthma treatment included inhaled corticosteroid (fluticasone) and long-acting beta-agonist therapy according to the treating physician's prescription.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in FEV1 Percent Predicted
Time Frame: Baseline and after 10 weeks of intervention
Forced expiratory volume in one second (FEV1) percent predicted was measured by spirometry to assess lung function before and after the intervention.
Baseline and after 10 weeks of intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Total Antioxidant Capacity
Time Frame: Baseline and after 10 weeks of intervention
Total antioxidant capacity of plasma was assessed using the ferric reducing antioxidant power (FRAP) assay before and after the intervention.
Baseline and after 10 weeks of intervention

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 15, 2026

Primary Completion (Actual)

June 15, 2026

Study Completion (Actual)

June 15, 2026

Study Registration Dates

First Submitted

August 23, 2026

First Submitted That Met QC Criteria

August 23, 2026

First Posted (Actual)

August 26, 2026

Study Record Updates

Last Update Posted (Actual)

August 26, 2026

Last Update Submitted That Met QC Criteria

August 23, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual participant data will not be shared because no prospective IPD-sharing plan was established for this study. Participant-level data will be maintained confidentially in accordance with institutional and ethical requirements.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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