# The Placebo Effect May Involve Modulating Drug Bioavailability

> **NCT01501747** · NA · COMPLETED · sponsor: **King Faisal Specialist Hospital & Research Center** · enrollment: 162 (actual)

## Conditions studied

- Placebo Effect
- Drug Half Life
- Pharmacokinetics

## Interventions

- **DRUG:** Caffeine, paracetamol, cephalexin, or ibuprofen
- **DRUG:** Placebo (caffeine, paracetamol, cephalexin, or ibuprofen)

## Key facts

- **NCT ID:** NCT01501747
- **Lead sponsor:** King Faisal Specialist Hospital & Research Center
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2012-02
- **Primary completion:** 2013-02
- **Final completion:** 2013-02
- **Target enrollment:** 162 (ACTUAL)
- **Last updated:** 2013-04-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01501747

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01501747, "The Placebo Effect May Involve Modulating Drug Bioavailability". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT01501747. Licensed CC0.

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