# A Study to Assess Effect of Dosing Intervals on Multiple-Dose Pharmacokinetics of WD-1603 Taken Before Meals in Healthy Participants

> **NCT07442591** · PHASE1 · RECRUITING · sponsor: **Shanghai WD Pharmaceutical Co., Ltd.** · enrollment: 12 (estimated)

## Conditions studied

- Healhty

## Interventions

- **DRUG:** Carbidopa and Levodopa Controlled-Release Tablets (25 mg/150 mg)
- **DRUG:** Carbidopa and Levodopa Controlled-Release Tablets (25 mg/150 mg)
- **DRUG:** Carbidopa and Levodopa Controlled-Release Tablets (25 mg/150 mg)

## Key facts

- **NCT ID:** NCT07442591
- **Lead sponsor:** Shanghai WD Pharmaceutical Co., Ltd.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2026-03-24
- **Primary completion:** 2026-06
- **Final completion:** 2026-12
- **Target enrollment:** 12 (ESTIMATED)
- **Last updated:** 2026-04-08

## Collaborators

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## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07442591

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07442591, "A Study to Assess Effect of Dosing Intervals on Multiple-Dose Pharmacokinetics of WD-1603 Taken Before Meals in Healthy Participants". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT07442591. Licensed CC0.

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