An Open-Label, Two-Arm Pilot Study of the Tolerability, Consumer Acceptability, and Exploratory Well-Being Outcomes of a Multi-Ingredient Protein Formula in Two Flavors in Healthy Adults

September 10, 2026 updated by: Qualia Life Sciences
This is an open-label, two-arm pilot study designed to evaluate the tolerability, consumer acceptability, and well-being outcomes of a multi-ingredient protein formula, available in two flavors (Vanilla Protein Formula and Chocolate Protein Formula), in generally healthy adults aged 21-65 with a BMI of 18.5-34.9 kg/m². Approximately 50 participants will be allocated in a 1:1 ratio, balanced on age and gender, to receive either the vanilla or chocolate formula (approximately 25 participants per arm). Participants will consume one serving (1 scoop, 51 grams) of their assigned product daily for 15 consecutive days, reconstituted in water or a beverage of their choice. The primary outcomes are safety and tolerability, assessed via a Safety and Tolerability Questionnaire, and changes in global health assessed using the Global-10 scale. Secondary outcomes include changes in cognitive function assessed using the PROMIS v2.0 Cognitive Function - Abilities 8a instruments, and consumer acceptability, measured using a 9-point hedonic liking scale. All assessments are self-reported and completed electronically at home.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The test product is a multi-ingredient powdered dietary supplement combining fermented yeast protein, grass-fed bovine collagen peptides, creatine monohydrate, and a prebiotic fiber blend, formulated for once-daily consumption as a beverage and available in two flavors: vanilla and chocolate. While the constituent ingredients are individually supported by existing literature, the tolerability, adherence, and consumer acceptability of this specific combination-along with its potential to influence self-reported measures of global health and cognitive function-have not yet been characterized. Establishing this real-world tolerability and acceptability profile across both flavors is a necessary precursor to designing a larger, controlled efficacy trial. This study employs a fully remote, decentralized design. No in-person visits, laboratory testing, or specialized clinical procedures are required. All study assessments will be completed electronically by participants using online questionnaires. Participants will be allocated in a 1:1 ratio to the Vanilla Protein Formula or the Chocolate Protein Formula using systematic allocation stratified by gender and age. Participants will consume one serving (1 scoop) daily for 15 consecutive days. Assessments are completed at baseline (Day 0), Day 7, and Day 15, with an end-of-study follow-up questionnaire 4-7 days after the final dose; brief check-in surveys on Days 1, 3, 7, and 15 capture adherence and adverse events.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
50

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • California
      • Carlsbad, California, United States, 92008
        • Recruiting
        • Qualia Life Sciences

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Adults aged 21-65 years, inclusive
  • Generally healthy, as determined by self-reported medical history and investigator judgment
  • Body mass index 18.5-34.9 kg/m² (as operationally verified)
  • Willing and able to consume the test product once daily for 15 days and to complete scheduled questionnaires
  • Can read and write English.
  • Provide voluntary, written, informed consent to participate in the study.
  • Agree to provide a valid cell phone number and are willing to receive communications through text.
  • Willing to complete questionnaires, records, and diaries associated with the study.
  • Willing to not begin taking any new supplements during the study and continue taking any supplements they are currently using regularly

Exclusion Criteria:

  • Known allergy or intolerance to any study-product component, including yeast-derived protein, bovine collagen, creatine, the prebiotic fiber blend, allulose, or Reb M.
  • Women who are pregnant, breastfeeding, or planning to become pregnant or start breastfeeding during the trial
  • Clinically significant gastrointestinal disorder that could confound tolerability assessment (e.g., inflammatory bowel disease, symptomatic irritable bowel syndrome, prior major GI surgery), per investigator judgment
  • Known renal impairment or condition for which supplemental creatine is not advised
  • Serious or unstable medical condition, or any condition that in the investigator's judgment would compromise participant safety or data integrity
  • Participation in another interventional study within 30 days prior to enrollment
  • Having any of the following conditions: Psychiatric conditions, neurologic disorders, endocrine disorders, cancer
  • Having had a significant cardiovascular event in the past 6 months
  • Taking MAO inhibitors, SSRIs, or any other psychiatric or neurological medicines
  • On immunosuppressive therapy
  • Having had surgery within the past 6 weeks or upcoming planned surgery in the next few months
  • Adults lacking capacity to consent

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: Other
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Vanilla Protein Formula
Participants receive the Vanilla Protein Formula, a vanilla-flavored, multi-ingredient ready-to-mix powdered dietary supplement. Participants consume one serving (1 scoop, 51 grams) daily for 15 consecutive days, reconstituted in water or a beverage of their choice.
Dietary supplement: Vanilla Protein Formula
A vanilla-flavored, multi-ingredient ready-to-mix powdered dietary supplement combining YESTEIN fermented yeast protein, grass-fed bovine collagen peptides, OptiCreatine creatine monohydrate, and FiberEssence prebiotic fiber blend, sweetened with allulose, Reb M, and coconut sugar. Each 51-gram serving (1 scoop) provides 24 g protein, 2 g sugar, 3.5 g fat, and 5 g fiber. Consumed once daily for 15 days.
Other Names:
  • Vanilla Protein Powder
Experimental: Chocolate Protein Formula
Participants receive the Chocolate Protein Formula, a chocolate-flavored, multi-ingredient ready-to-mix powdered dietary supplement. Participants consume one serving (1 scoop, 51 grams) daily for 15 consecutive days, reconstituted in water or a beverage of their choice.
Dietary supplement: Chocolate Protein Formula
A chocolate-flavored, multi-ingredient ready-to-mix powdered dietary supplement combining YESTEIN fermented yeast protein, grass-fed bovine collagen peptides, OptiCreatine creatine monohydrate, and FiberEssence organic prebiotic fiber blend, flavored with cocoa powder and organic natural cocoa extract, sweetened with allulose, Reb M, and coconut sugar, and containing MCT oil powder. Each 51-gram serving (1 scoop) provides 25 g protein, 2 g sugar, 3.5 g fat, and 5 g fiber. Consumed once daily for 15 days.
Other Names:
  • Chocolate Protein Powder

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change from baseline in Safety and Tolerability Questionnaire symptom scores at Day 15
Time Frame: Baseline to Day 15
Safety and tolerability of daily use of the protein formula. Each symptom item (increased anxiety/worry, headache, mood changes, stomach upset/nausea, dizziness, bloating, itching, sexual dysfunction) is rated 1 (not at all) to 5 (a great deal); higher score = worsening of symptoms.
Baseline to Day 15
Change from baseline in PROMIS Global Health (Global-10) T-scores at Day 15
Time Frame: Baseline to Day 15
PROMIS Global Health v1.2 (10 items) yields Global Physical Health (GPH) and Global Mental Health (GMH) T-scores (mean 50, SD 10 in the reference population); higher T-scores = better health. Pooled across both flavor arms.
Baseline to Day 15

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Overall product liking on the 9-point hedonic scale at Day 15, by flavor arm
Time Frame: Day 15
Overall liking rated 1 (dislike extremely) to 9 (like extremely); flavor and texture/mouthfeel/aftertaste are rated on the same scale. Summarized separately for the vanilla and chocolate arms.
Day 15
Change from baseline in PROMIS v2.0 Cognitive Function - Abilities Short Form 8a T-score at Day 15
Time Frame: Baseline to Day 15
Eight items each scored 1-5 (raw score 8-40), converted to a T-score (mean 50, SD 10); higher = better perceived cognitive function. Pooled across both flavor arms.
Baseline to Day 15
Change from baseline in Safety and Tolerability Questionnaire symptom scores at Day 7
Time Frame: Baseline to Day 7
Mid-study safety and tolerability. Each symptom item (increased anxiety/worry, headache, mood changes, stomach upset/nausea, dizziness, bloating, itching, sexual dysfunction) is rated 1 (not at all) to 5 (a great deal); higher score = worsening of symptoms.
Baseline to Day 7

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Just-About-Right (JAR) sweetness rating at Day 15, by flavor arm
Time Frame: Day 15
Sweetness rated 1 (far too little) to 5 (far too much), with 3 = just about right. Summarized separately by flavor arm.
Day 15
Adherence and study completion
Time Frame: Days 1 to 15
Proportion of scheduled servings consumed, from check-in surveys on Days 1, 3, 7, and 15, and the proportion of participants completing the Day 15 assessment.
Days 1 to 15
End-of-study Follow-Up Questionnaire: overall product experience, product rating, and purchase interest
Time Frame: 4-7 days after the final dose
Self-reported overall experience with the product, product rating, and purchase intent (5-point scale from 'definitely would not buy' to 'definitely would buy').
4-7 days after the final dose

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Qualia Life Sciences

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: William Scuba, Qualia Life Sciences

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 (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
January 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 10, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 10, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 18, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 18, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • QLS-025

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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