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Somministrazione di tAN per Ridurre l'HMB: Lo Studio LUNA (LUNA)

15 ottobre 2026 aggiornato da: Spark Biomedical, Inc.

Somministrazione di Neurostimolazione Auricolare Transcutanea per Ridurre il Sanguinamento Mestruale Abbondante: Lo Studio LUNA

The LUNA study is a prospective, randomized, double-blind, sham-controlled, decentralized clinical trial in participants with heavy menstrual bleeding of no known structural cause. The study includes two age-based cohorts: adolescents aged 14-21 and adults aged 22-45. Participants in both cohorts will be randomized to receive transcutaneous auricular neurostimulation (tAN), which targets the auricular branch of the vagus nerve (ABVN) and the auriculotemporal nerve (ATN), or sham stimulation. Participants will be enrolled into the study over the course of five menstrual cycles. All study activities will occur remotely and in addition to participants' typical treatment for HMB (as allowed by the eligibility criteria).

During the first two consecutive menstrual cycles (M1 - M2, "Baseline Phase"), no tAN treatment will be delivered. Participants will estimate blood loss using the Pictorial Bleeding Assessment Chart (PBAC), and menstrual cramp pain will be assessed with a Numerical Rating Scale (NRS), daily throughout the duration of the menstruation phase of their two baseline menstrual cycles. Menstrual symptoms will be assessed using the Cox Menstrual Symptom Scale (CMSS) and a general quality of life assessment will be conducted on the final day of menstruation using the RAND Short-Form 36 (RAND-36). Menstrual-related quality of life assessments will also be conducted on the final day of each menstruation using the Menstrual Bleeding Questionnaire (MBQ) in the adult cohort, and the adolescent version (aMBQ) in the adolescent cohort.

During the following three menstruations (M3 - M5, "Treatment Phase"), participants will self-administer one 2-hour sham or active tAN session daily, beginning Day 1 of menstruation through the final day of menstruation in each menstrual cycle. Blood loss (via the PBAC) and menstrual cramp pain (via the NRS) will be assessed daily throughout the duration of each menstruation. Quality of life will be assessed with the CMSS, RAND-36, and the MBQ (adults) or aMBQ (adolescents) on the final day of each menstruation. A device usability survey will be completed at the end of M3 and M5. Participants will exit the study after the final day of M5.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

80

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

    • Massachusetts
      • Boston, Massachusetts, Stati Uniti, 02111
        • Reclutamento
        • Lindus Health - DECENTRALIZED STUDY
        • Investigatore principale:
          • Alta DeRoo, MD, MBA
        • Contatto:
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 14 anni a 45 anni (Bambino, Adulto)

Accetta volontari sani

No

Sessi ammissibili allo studio

Femmina

Descrizione

Inclusion Criteria:

  1. Regularly menstruating female aged 14-45 years at time of screening
  2. History of menorrhagia as assessed by the Menorrhagia Screening Tool
  3. Stable/consistent use of current non-hormonal medications and supplements for the past three months, willingness to continue use for duration of study, and not start any new medications or homeopathic remedies
  4. Reliable access to an internet-enabled device to complete required questionnaires that is compatible with the study application (iOS 18 and Android 15 or greater)
  5. Willingness to consistently use only study-provided menstrual products throughout duration of the study
  6. Participant PBAC scores are ≥150 for both baseline menstruation months

Exclusion Criteria:

  1. Pregnancy within three months of enrollment
  2. Lactating at the time of enrollment
  3. Typical length of menstruation greater than 14 days
  4. Antifibrinolytic (i.e. tranexamic acid; Lysteda) use within 14 days of enrollment
  5. Known acquired bleeding disorder
  6. Known severe bleeding disorder (participants with mild von Willebrand disease will be eligible to participate in the study)
  7. Use of anticoagulants (i.e. Warfarin, Coumadin, etc.) including platelet inhibitors for 14 days prior to enrollment
  8. Use of prescriptive pain medications and/or use of the following analgesics: Aspirin, naproxen (Aleve), or magnesium salicylate (Doan's) during the study
  9. Use of the copper intrauterine device within the past three months
  10. Structural cause of heavy menstrual bleeding (e.g. fibroids, polyps, etc.) in medical records
  11. Documented thrombocytopenia within the last 12 months (platelet count ≤100,000 per microliter of blood) in medical records
  12. Any use of continuous hormone therapies (e.g., IUD, etc.) within three months prior to enrollment
  13. Use of hormone therapies that have not followed a standard 21/7 dosing regimen for at least six months prior to enrollment
  14. Participant has a history of chronic tobacco use or has ingested nicotine via smoking, vaping, smokeless tobacco, or nicotine patches in the past three months
  15. Participant has a history of epileptic seizures within the past 12 months
  16. Participant has a history of neurologic diseases (i.e. stroke, brain tumor, cerebrovascular, etc.)
  17. Participant has a history traumatic brain injury within the past 12 months
  18. Participant has had a splenectomy
  19. Participant has presence of devices (e.g., pacemakers, cochlear prostheses, neurostimulators) and/or uses other neurostimulators
  20. Participant has abnormal ear anatomy or ear infection present
  21. Participant has previously used auricular neurostimulation for any clinical indication
  22. Participant is currently or plans to be enrolled in another clinical trial during enrollment
  23. Participant is a ward of the state
  24. Participant has any other significant disease or disorder which, in the opinion of the Investigator, may either put the participants at risk because of participation in the trial, or may influence the result of the trial, or the participant's ability to participate in the trial

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Triplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Active tAN

In the Treatment Phase (M3-M5), participants will self-administer one two-hour session of active transcutaneous auricular neurostimulation (tAN) each day of menstruation.

The Sparrow Link will be using the components of the Sparrow Ascent device: (FDA-cleared K230796) a wearable, battery-operated, neurostimulation system designed to transcutaneously stimulate nerves on and/or around the auricle.

Altri nomi:
  • Neurostimolazione auricolare transcutanea
Comparatore fittizio: Sham tAN

In the Treatment Phase (M3-M5), participants will self-administer one two-hour session of sham transcutaneous auricular neurostimulation (tAN) each day of menstruation. Participants in the sham group will apply the earpiece and connect the cable to the Patient Controller. The device will be turned on, and appears to function identically to an active device, but will not deliver stimulation through the earpiece.

Participants will have the earpiece applied and the cable connected to the Patient Controller, but tAN stimulation will not be turned on. The sham device has an identical appearance to the active device.

Altri nomi:
  • Neurostimolazione Auricolare Transcutanea (Sham)

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Pictorial Bleeding Assessment Chart (PBAC)
Lasso di tempo: Daily throughout all five menstruations (up to 5 complete menstrual cycles - estimated 150 days)

The PBAC is a widely accepted tool for patients with HMB to account for menstrual blood loss. Menstrual blood loss is estimated through a selection of images of tampons, pads, clots, and flooding events. Users mark a tally next to the images that best match each the saturation level of the menstruation products they used that day. PBAC data will be recorded by the participants for each calendar day (00:00-23:59 local time). Day 1 is the calendar date on which a menstrual product is first used. This trial will utilize a modified version of the Higham PBAC, where a tally system will be added to each of the images.

Daily throughout all five menstruations (up to 5 complete menstrual cycles - estimated 150 days)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Cox Menstrual Symptom Severity Scale (CMSS)
Lasso di tempo: Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)

The CMSS measures menstrual distress and dysmenorrhea. The CMSS Severity subscale is an 18-item self-reported scale that measures severity of menstrual symptoms, including pain, nausea, emotions, etc. during menstruation. The CMSS will be used in this trial to retrospectively measure the frequency and severity of a participant's menstrual symptoms on the final day of each menstruation.

Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)
Numerical Rating Scale (NRS)
Lasso di tempo: Daily throughout all five menstruations (up to 5 complete menstrual cycles - estimated 150 days)

The NRS measures menstrual pain daily on a scale of 0 to 10, with zero representing no pain and 10 representing the worst pain imaginable. This is a commonly used scale in studies of dysmenorrhea and other gynecological pain conditions. The NRS will be used in this trial to measure the severity of a participant's menstrual pain on each day of each menstruation.

Daily throughout all five menstruations (up to 5 complete menstrual cycles - estimated 150 days)
RAND Short Form-36 (RAND-36)
Lasso di tempo: Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)

The RAND-36 is a 36-item patient-reported questionnaire that assesses general quality of life. This questionnaire includes eight variables: physical functioning, social functioning, role limitations due to physical problems, role limitations due to emotional problems, mental health, energy and vitality, pain, and general perception of health. This questionnaire will be completed by the participant at the end of each menstruation.

Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)
Menstrual Bleeding Questionnaire (MBQ)
Lasso di tempo: Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)

The MBQ measures the impact of heavy menstrual bleeding on health-related quality of life in adult women. The MBQ is a 20-item self-reported scale that evaluates the frequency and severity of menstrual symptoms and their effects on physical, social, and emotional functioning, daily activities, and overall well-being. Responses are captured on Likert-type scales, with higher scores indicating greater symptom burden and functional impairment. The MBQ will be used in this trial to measure the severity of the adult cohort's menstrual pain on the final day of each menstruation.

Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)
Adolescent Menstrual Bleeding Questionnaire (aMBQ)
Lasso di tempo: Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)

The aMBQ measures HMB-related quality of life in adolescents. The aMBQ is a 19-item self-reported scale that evaluates symptom burden and its effects on school attendance and performance, extracurricular and social activities, physical functioning, and emotional well-being, using Likert-type responses with higher scores indicating greater impact. The aMBQ will be used in this trial to measure the severity of the adolescent cohort's menstrual pain on the final day of each menstruation.

Final day of each menstruation (up to 5 complete menstrual cycles - estimated 150 days)
Device Usability Questionnaire
Lasso di tempo: Final day of Menstruation 3 and Menstruation 5 (estimated 10 days per menstruation)

The Device Usability Questionnaire is a 16-item survey that includes both Likert-scale questions (ranging from Strongly Agree to Strongly Disagree) and open-ended free-text responses. It is designed to assess participants' overall satisfaction with the device and to evaluate how easily they were able to operate it using the provided instructions and support materials (Instruction for Use and Quick Start Guide).

Final day of Menstruation 3 and Menstruation 5 (estimated 10 days per menstruation)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Collaboratori

Investigatori

  • Investigatore principale: Navid Khodaparast, PhD, Spark Biomedical, Inc.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

6 marzo 2026

Completamento primario (Stimato)

31 agosto 2027

Completamento dello studio (Stimato)

31 agosto 2027

Date di iscrizione allo studio

Primo inviato

6 gennaio 2026

Primo inviato che soddisfa i criteri di controllo qualità

7 gennaio 2026

Primo Inserito (Effettivo)

8 gennaio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

20 ottobre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

15 ottobre 2026

Ultimo verificato

1 ottobre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • 5L-BLD-06

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

Sì

prodotto fabbricato ed esportato dagli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .