NCT07783113

Brief Summary

A single-center, open-label clinical study to evaluate whether a dietary supplement can reduce hair loss in women with GLP-1-associated telogen effluvium. Participants will use the supplement for 120 days. Researchers will evaluate hair loss, hair density, and hair growth through clinical assessments, hair measurements (trichogram), and participant questionnaires.

Trial Health

63
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
4mo left

Started Oct 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 20, 2026

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 24, 2026

Completed
1 month until next milestone

Study Start

First participant enrolled

October 1, 2026

Expected
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2027

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2027

Last Updated

August 27, 2026

Status Verified

August 1, 2026

Enrollment Period

4 months

First QC Date

August 20, 2026

Last Update Submit

August 25, 2026

Conditions

Keywords

AlopeciaGlucagon-Like Peptide-1 Receptor AgonistsHair lossDietary Supplement

Outcome Measures

Primary Outcomes (1)

  • Anagen-to-Telogen Hair Ratio (A:T)

    Change in the anagen-to-telogen hair ratio (A:T), assessed by trichogram analysis after 120 days of supplementation with a dietary supplement, compared with baseline (Day 0), in women with telogen effluvium associated with the use of GLP-1 receptor agonists.

    Baseline and Day 120

Secondary Outcomes (9)

  • Anagen-to-Telogen Hair Ratio (A:T) at Day 60

    Baseline and Day 60

  • Change in hair thinning score assessed by Visual Analog Scale (VAS)

    Baseline, Day 30, Day 60, Day 90, and Day 120

  • Incidence of Adverse Events

    Day 30, Day 60, Day 90, and Day 120

  • Change in hair density score assessed by Visual Analog Scale (VAS)

    Baseline, Day 30, Day 60, Day 90, and Day 120

  • Change in perceived hair shedding assessed by a self-perception questionnaire

    Baseline, Day 30, Day 60, Day 90, and Day 120

  • +4 more secondary outcomes

Study Arms (1)

Dietary Supplement

EXPERIMENTAL

Female participants with GLP-1-associated telogen effluvium will receive a dietary supplement once daily for 120 days. Efficacy will be evaluated through trichogram analysis, clinical assessments, and participant questionnaires, with safety monitored during the study.

Dietary Supplement: Dietary Supplement for Hair Loss

Interventions

Dietary supplement containing vitamins, minerals, amino acids, and silicon intended to support hair health and reduce hair loss.

Dietary Supplement

Eligibility Criteria

Age20 Years - 60 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsFemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Female participants aged 20 to 60 years.
  • Dry, normal, combination, or oily scalp type.
  • Clinical diagnosis of telogen effluvium associated with the use of GLP-1 receptor agonists (semaglutide or tirzepatide), diagnosed by a dermatologist and confirmed by trichogram analysis.
  • Hair length of at least 3 cm.
  • Use of GLP-1 receptor agonists (semaglutide or tirzepatide) for at least 3 months prior to enrollment.
  • Intact skin in the study area (scalp).
  • Use of GLP-1 receptor agonists approved by ANVISA and commercially available in Brazil.
  • Under regular medical supervision during the study period.
  • Loss of at least 5% of initial body weight prior to enrollment.
  • Willingness to maintain the same hairstyle, haircut, and hair care habits throughout the study.
  • Willingness to comply with all study procedures and requirements.
  • Ability to provide written informed consent.

You may not qualify if:

  • Pregnancy, breastfeeding, postpartum period up to 6 months, or intention to become pregnant during the study.
  • Scalp conditions or skin marks that may interfere with study assessments.
  • Known allergy or hypersensitivity to any component of the investigational product or similar products.
  • Active scalp disorders that could interfere with study evaluations, including scarring alopecia, alopecia areata, folliculitis decalvans, psoriasis, moderate-to-severe seborrheic dermatitis, or eczema.
  • Use of nonsteroidal anti-inflammatory drugs, corticosteroids, antihistamines, photosensitizing agents, or immunosuppressants within 2 weeks before enrollment.
  • Ongoing radiotherapy or chemotherapy treatment.
  • Hair chemical procedures within 30 days prior to enrollment.
  • Recent use or dose adjustment of medications known to induce telogen effluvium.
  • Use of dietary supplements for hair loss within the previous 3 months.
  • Use of hair loss treatments or hair cycle modulators (e.g., minoxidil, finasteride, dutasteride, spironolactone) within the previous 3 months.
  • Hair transplantation within the previous 18 months.
  • Use of topical dermatological products for therapeutic or specific cosmetic purposes on the study area (scalp), such as hair tonics, topical minoxidil, medicated lotions, or acid-based treatments, within 48 hours prior to study initiation.
  • Initiation, discontinuation, or modification of hormone therapy within the previous 3 months.
  • Uncontrolled systemic diseases, including diabetes, lupus, thyroid disorders, anemia, or documented iron deficiency.
  • Bariatric surgery within the previous 12 months.
  • +10 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Kosmoscience Ciência E Tecnologia Cosmética - Ltda

São Paulo, São Paulo, 13270-180, Brazil

Location

MeSH Terms

Conditions

Alopecia

Interventions

Dietary Supplements

Condition Hierarchy (Ancestors)

HypotrichosisHair DiseasesSkin DiseasesSkin and Connective Tissue DiseasesPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

FoodDiet, Food, and NutritionPhysiological PhenomenaFood and Beverages

Study Officials

  • Ana Lúcia T Tabarini Alves Pinheiro, MD

    Kosmoscience Ciência e Tecnologia Cosmética Ltda

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Fernanda C Calvente Bayan, BSc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 20, 2026

First Posted

August 24, 2026

Study Start (Estimated)

October 1, 2026

Primary Completion (Estimated)

February 1, 2027

Study Completion (Estimated)

February 1, 2027

Last Updated

August 27, 2026

Record last verified: 2026-08

Locations