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- Klinische proef NCT07624617
Fast-Her: Fasting Effects on Breast Cancer Treatment
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Lisa Chow, MD, MS
- Telefoonnummer: 612-625-8934
- E-mail: chow0007@umn.edu
Studie Locaties
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Minnesota
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Minneapolis, Minnesota, Verenigde Staten, 55455
- Werving
- University of Minnesota
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Contact:
- Lisa Chow, MD, MS
- Telefoonnummer: 612-625-8934
- E-mail: chow0007@umn.edu
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Age ≥18 years
- Histologically confirmed metastatic breast cancer
- Menopausal or medically ovarian suppressed
- Currently receiving capivasertib therapy (2 tablets twice daily, 4 days per week)
- Stable on current capivasertib regimen for at least 2 weeks
- an ECOG performance status of 0-1
- BMI ≥25kg/m2
- Able to provide informed consent
- Willing to comply with study procedures including CGM wear, food tracking by mCC app and dietary modifications
- Access to smartphone or tablet for mobile application use
Exclusion Criteria:
- Type 1 diabetes mellitus
- Uncontrolled type 2 diabetes (HbA1c >9.0%)
- History of severe hypoglycemia
- Eating disorders or contraindications to fasting
- Pregnancy or breastfeeding
- Significant gastrointestinal disorders affecting food absorption
- Unable to fast for medical reasons
- Concurrent participation in other dietary intervention studies
- A history of significantly abnormal lab results within 4 weeks of consent date, such as hematologic (Hgb < 10.0, platelets < 100), hepatic (LFTs > 2X nl), renal (Cr > 1.5)
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Ondersteunende zorg
- Toewijzing: Gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Actieve vergelijker: Sequence A
Participants randomized to Sequence A will complete a normal eating intervention period, followed by a washout period, followed by a prolonged fasting intervention period. Normal eating → Washout → Prolonged fasting |
During the normal eating intervention period, participants will follow their usual eating pattern.
Participants will continue their prescribed PI3K inhibitor dosing, with medications taken at standardized times to ensure consistent pharmacokinetic measurements.
During the prolonged fasting intervention period, participants will eat only once daily (dinner), with water, black coffee, and tea permitted during fasting hours.
Participants will continue their prescribed PI3K inhibitor dosing, with medications taken at standardized times to ensure consistent pharmacokinetic measurements.
|
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Actieve vergelijker: Sequence B
Participants randomized to Sequence B will complete a prolonged fasting intervention period, followed by a washout period, followed by a normal eating intervention period. Prolonged fasting → Washout → Normal eating |
During the normal eating intervention period, participants will follow their usual eating pattern.
Participants will continue their prescribed PI3K inhibitor dosing, with medications taken at standardized times to ensure consistent pharmacokinetic measurements.
During the prolonged fasting intervention period, participants will eat only once daily (dinner), with water, black coffee, and tea permitted during fasting hours.
Participants will continue their prescribed PI3K inhibitor dosing, with medications taken at standardized times to ensure consistent pharmacokinetic measurements.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Effect of plasma from fasting in patients on PI3K inhibitors on cell viability
Tijdsspanne: Week 2 of prolonged fasting
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We will culture 2D/3D breast cancer models using plasma from patients in the fed and fasted states.
We will assess tumor cell viability by measuring cell proliferation, apoptosis, and cell cycle distribution.
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Week 2 of prolonged fasting
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mechanisms by which fasting might enhance PI3K inhibitor efficacy through complementary molecular and cellular studies
Tijdsspanne: Week 7
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We will culture 2D/3D breast cancer models using plasma from patients in the fed and fasted states and perform metabolomic and proteomic analyses to evaluate the effects on insulin and PI3K pathways.
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Week 7
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Identify biomarkers/patient characteristics predicting the enhancement of PI3K inhibitor efficacy with fasting.
Tijdsspanne: Week 7
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We will evaluate biomarkers that may predict the influence of fasting on PI3K inhibitor efficacy.
Using serial plasma samples, we will analyze PI3K inhibitor pharmacokinetics, metabolic markers (e.g., insulin, glucose), circadian markers (melatonin, cortisol), and tumor-specific markers (circulating tumor DNA).
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Week 7
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Lisa Chow, MD, MS, University of Minnesota
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- MED-2025-34235
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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