---
title: "Pilot Trial: Bioavailability Animal vs. Plant Protein Drink"
nct_id: NCT06465004
overall_status: RECRUITING
phase: NA
sponsor: ETH Zurich
study_type: INTERVENTIONAL
primary_condition: Nutrition, Healthy
countries: Switzerland
canonical_url: "https://parkinsonspathways.com/agent/trials/NCT06465004.md"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT06465004"
ct_last_update_post_date: 2024-06-21
last_seen_at: "2026-05-12T07:28:43.785Z"
source: ClinicalTrials.gov (mirrored, no enrichment)
---
# Pilot Trial: Bioavailability Animal vs. Plant Protein Drink

**Official Title:** Exploratory Pilot Trial Assessing the Immediate Impact of Animal-based and Plant-based Protein Drinks on Blood Parameters

**NCT ID:** [NCT06465004](https://clinicaltrials.gov/study/NCT06465004)

## Key Facts

- **Status:** RECRUITING
- **Phase:** NA
- **Study Type:** INTERVENTIONAL
- **Target Enrollment:** 12
- **Lead Sponsor:** ETH Zurich
- **Conditions:** Nutrition, Healthy, Leucine Sensitivity
- **Start Date:** 2024-06-08
- **Completion Date:** 2024-08-30
- **CT.gov Last Update:** 2024-06-21

## Brief Summary

A pilot study is being conducted to compare a new plant-based protein drink to commercially available animal-based protein drinks. The goal is to assess if the plant-based drink delivers amino acids to the bloodstream as effectively as the animal-based drinks, potentially offering a viable option for those on plant-based diets.

The study will involve approximately 12 healthy adults aged 18-40. Each participant will try all three drinks (the new plant-based drink, a commercial animal-based drink, and another animal-based recipe) on separate days in a randomized order. Before and after (30, 60, and 90 minutes) consuming each drink, a small blood sample will be drawn to measure amino acid levels (leucine).

By comparing the results, the investigators hope to determine if the plant-based drink can match the effectiveness of animal-based protein drinks in delivering essential nutrients. This research could contribute to the development of sustainable and nutritious plant-based protein alternatives.

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 40 Years
- **Sex:** ALL
- **Healthy Volunteers:** Yes

```
Inclusion criteria

* Gender: male and female
* Age: 18-40 years
* Signed written informed consent

Exclusion criteria

* Smoking history
* Cardiovascular diseases
* BMI \> 35 kg/m2
* Caffeine consumption \< 1 day before the study participation
* Allergies: Soy, Peas, Milk, Lactose, Fructose
* High intensity exercise \<2 days before study participation
```

## Arms

- **Animal-based A** (ACTIVE_COMPARATOR) — A commercially available high protein drink, based on animal proteins (Fresubin Protein Energy)
- **Animal-based B** (ACTIVE_COMPARATOR) — A homemade drink containing animal-based proteins, using a specific animal-based protein isolate mix.
- **Plant-based A** (ACTIVE_COMPARATOR) — A homemade drink containing plant-based proteins, formulated to have the same macronutrient content as the animal-based drinks.

## Interventions

- **Consumption of protein - rich drink** (DIETARY_SUPPLEMENT) — The participants will drink on of three protein - rich drinks

## Primary Outcomes

- **leucine content in the blood** _(time frame: 4 hours)_ — Assessment of leucine content in blood before and 30-60-90 min after consumption of drink

## Locations (1)

- SLA - ETH Zurich, Schwerzenbach, Canton of Zurich, Switzerland — _RECRUITING_

## Recent Field Changes (last 30 days)

- `design.phases` — added _(2026-05-12)_
- `status.primaryCompletionDate` — added _(2026-05-12)_
- `status.completionDate` — added _(2026-05-12)_
- `status.lastUpdatePostDate` — added _(2026-05-12)_
- `status.overallStatus` — added _(2026-05-12)_
- `design.enrollmentCount` — added _(2026-05-12)_
- `eligibility.criteria` — added _(2026-05-12)_
- `eligibility.minAge` — added _(2026-05-12)_
- `eligibility.maxAge` — added _(2026-05-12)_
- `eligibility.sex` — added _(2026-05-12)_
- `outcomes.primary` — added _(2026-05-12)_
- `armsInterventions.arms` — added _(2026-05-12)_
- `armsInterventions.interventions` — added _(2026-05-12)_
- `sponsor.lead` — added _(2026-05-12)_
- `results.hasResults` — added _(2026-05-12)_
- `locations.sla - eth zurich|schwerzenbach|canton of zurich|switzerland` — added _(2026-05-12)_

---

*Canonical: https://parkinsonspathways.com/agent/trials/NCT06465004.md*  
*Source data (authoritative): https://clinicaltrials.gov/study/NCT06465004*  
*This page is a raw mirror with no AI summary, no editorial enrichment, and no Parkinson's-specific filtering.*