---
title: "Clinical Trial Review Dosing, Lab Audit & Side Effects (2026 RCT Data) | Nutrition Research Labs"
source_url: "https://nutritionresearchlabs.com/ashwagandha-cortisol-hpa-axis-clinical-audit"
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description: "Double-blind, placebo-controlled trials confirm that standardized Withania somnifera root extract (KSM-66® / Sensoril®) reduces serum morning cortisol by 23% to 30.5%, with significant improvements in perceived stress scale (PSS) scores and sleep latency."
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> **Canonical Source:** [https://nutritionresearchlabs.com/ashwagandha-cortisol-hpa-axis-clinical-audit](https://nutritionresearchlabs.com/ashwagandha-cortisol-hpa-axis-clinical-audit)
>
> *Double-blind, placebo-controlled trials confirm that standardized Withania somnifera root extract (KSM-66® / Sensoril®) reduces serum morning cortisol by 23% to 30.5%, with significant improvements in perceived stress scale (PSS) scores and sleep latency.*

## Interactive Clinical Utility Suite for Clinical Trial Review

Instant client-side pharmacokinetics: calculate weight-based therapeutic dosing, model plasma half-life washout, or audit CYP450 prescription drug interactions.

## Key Clinical Takeaways & Meta-Analysis Findings

Double-blind, placebo-controlled trials confirm that standardized Withania somnifera root extract (KSM-66® / Sensoril®) reduces serum morning cortisol by 23% to 30.5%, with significant improvements in perceived stress scale (PSS) scores and sleep latency.

- **Evidence Classification:** Rigorously graded under standardized Cochrane & GRADE systematic review protocols.
- **Minimum Effective Dose:** 300 mg daily (KSM-66 extract).
- **Optimal Therapeutic Range:** 600 mg daily (divided into 300mg BID).
- **Pharmacokinetic Timing Protocol:** Administer with evening meal or 45 minutes prior to sleep..
- **Pharmacokinetic Half-Life (T½):** 4 – 6 hours.
- **Interaction Risk Profile:** Moderate interaction risk.
- **Primary Literature Benchmark:** PMID [23439798](https://pubmed.ncbi.nlm.nih.gov/23439798/) (Indian Journal of Psychological Medicine).

## Enrolling Clinical Research Trials for Clinical Trial Review ($750–$2,200 Stipends)

Accredited medical research centers are currently enrolling qualified participants for metabolic health, incretin therapy, and cellular longevity studies. Volunteers receive compensation for completed visits.

## Clinical FAQ & Evidence Review

### Should Ashwagandha be cycled?

Most clinical trials evaluate 8 to 12-week continuous administration protocols. Many clinical herbalists recommend cycling (e.g. 8 weeks on, 2 weeks off) to prevent potential down-regulation of endogenous adaptogenic response.

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## Structured FAQ Summary (Schema.org Grounded)
- **Should Ashwagandha be cycled?** Most clinical trials evaluate 8 to 12-week continuous administration protocols. Many clinical herbalists recommend cycling (e.g. 8 weeks on, 2 weeks off) to prevent potential down-regulation of endogenous adaptogenic response.

---

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