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Relacorilant in Patients With Poorly Controlled Type 2 Diabetes and Autonomous Cortisol Secretion

The purpose of this study is to assess the effect and effectiveness of Relacorilant on improving the glucose levels in the blood, thus potentially improving glucose control in patients with hard to control diabetes.

This study involves the use of an investigational drug called Relacorilant. "Investigational" means that the drug has not yet been approved by the U.S. Food & Drug Administration (FDA) for treating "mild hypercortisolism" in patients with diabetes. Cortisol is a "stress hormone". The excess production of cortisol can rise blood sugar (glucose) levels and worsen diabetes. Those disturbances might be corrected by the study medication Relacorilant to improve the state of your diabetes.

This study will evaluate the effects of Relacorilant on glucose control and its safety profile. Although the safety of this drug has been tested in prior human research studies, some side effects may not yet be known.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

The objective of the study is to investigate the mechanisms by which glucocorticoid receptor (GR) antagonism with relacorilant improves glucose homeostasis in patients with difficult-to-control type 2 diabetes (T2D) and confirmed endogenous hypercortisolism.

Each patient serves as their own control to assess the mechanistic nature of the study. Comparisons made between pre- and post-treatment outcomes. This within-subject design allows detailed assessment of metabolic changes in response to treatment.

Studietype

Intervensjonell

Registrering (Antatt)

34

Fase

  • Fase 2
  • Fase 1

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

    • Texas
      • San Antonio, Texas, Forente stater, 78229
        • University of Texas Health Science Center at San Antonio
        • Ta kontakt med:
        • Ta kontakt med:
      • San Antonio, Texas, Forente stater, 78229-3900
        • Texas Diabetes Institute/UH
        • Ta kontakt med:
        • Hovedetterforsker:
          • Ralph DeFronzo, MD
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Age between 18 and 75 years.

  2. Males or females

  3. HbA1c between 7.5% and 10.5%

  4. Type 2 diabetes with at least one of the following:

    • Taking ≥ 3 glucose-lowering drugs
    • Taking 2 glucose lowering medication and 2 anti-hypertensive drugs.
    • Taking insulin and any other glucose lowering drugs
    • Taking ≥ 2 glucose-lowering drugs and presence of microvascular (retinopathy, nephropathy, neuropathy) or ≥ macrovascular (heart attack, heart failure, peripheral vascular disease, atrial fibrillation) disease
  5. No changes in diabetes medications in the 4 weeks prior to enrollment.

  6. Estimated glomerular filtration rate (eGFR) ≥ 30 ml/min/1.73m².

  7. Blood pressure lower than 170/110 mmHg.

  8. Abnormal dexamethasone suppression test: morning plasma cortisol >1.8 µg/dL with plasma dexamethasone ≥140 ng/dL.

  9. Self-reported stable (within ±6 lbs in the last 3 months) body weight and body mass index (BMI) between 25-40 kg/m².

  10. Negative Glutamic Acid Decarboxylase (GAD) antibody.

  11. Hematocrit ≥ 34%.

  12. Aspartate Aminotransferase (AST) and Alanine Aminotransferase (ALT) ≤ 3× the upper limit of normal.

  13. Female participants of childbearing potential must have a negative pregnancy test and agree to use appropriate contraception throughout the study. (Women who are using hormonal contraceptives will need to agree to use an acceptable method of non-hormonal contraception throughout the study and for ≥6 half-lives after the last dose of assigned treatment (7 days prior to randomization).

Exclusion Criteria:

  1. Diagnosis of type 1 diabetes
  2. New-onset diabetes of less than 1 year duration.
  3. Presence of severe acute medical, psychiatric, or surgical illness.
  4. Use of systemic (oral, IV, intra-articular, or inhaled) or topical glucocorticoids within the past 3 months.
  5. Use of systemic glucocorticoid during the study is prohibited except in the event of medical emergency OR Requires inhaled glucocorticoid use and may require systemic glucocorticoids if their condition deteriorates during the study
  6. Night shift workers (unless able to temporarily change sleep schedule to complete dexamethasone test).
  7. Severe untreated sleep apnea. (Severe untreated sleep apnea, defined as an Apnea-Hypopnea Index (AHI) ≥ 30 events per hour on polysomnography, or a documented clinical diagnosis of severe sleep apnea in patients who are not receiving effective therapy (e.g., CPAP, BiPAP, oral appliance, or surgical treatment).
  8. Excessive alcohol intake: >14 drinks/week for men or >7 drinks/week for women.
  9. Diagnosed with or having treatment plans for Cushing syndrome
  10. Known hypersensitivity to dexamethasone or relacorilant.
  11. Severe, uncontrolled hypertension (>170/110 mmHg) at screening.
  12. Use of another investigational drug within 4 weeks or less than 5 half-lives of the compound, whichever is longer.
  13. Pregnant or lactating women or women of childbearing potential (including all women <50 years old, women whose surgical sterilization was performed <6 months ag; and women who have had a menstrual period in the last 12 months; and women who have a positive pregnancy test before dexamethasone administration.)
  14. Women with a history of unexplained vaginal bleeding, endometrial hyperplasia with atypia or endometrial carcinoma.
  15. Diagnosed with or having treatment plans for Cushing syndrome using any of the following treatments: mifepristone, metyrapone, osilodrostat, ketoconazole, fluconazole, aminoglutethimide, etomidate, octreotide, larazotide, pasireotide, long-acting octreotide or pasireotide.
  16. Uncontrolled thyroid disease (hypo- or hyperthyroidism) prior to first dose of relacorilant as confirmed by TSH outside of normal range (0.4 to 5.0 mIU/L).
  17. Has plans for adrenalectomy or adrenal nodulectomy during the study period.
  18. Taking any co-medications that is disallowed with strong CYP3A inhibitors and cannot undergo dose modifications on coadministration with a strong CYP3A inhibitor
  19. Ongoing use of any strong CYP3A4 inducer

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Study Investigational Drug Group

Participants will receive study intervention once daily after screening and dexamethasone suppression test.

A capsule that will be given once daily starting at 100mg and increasing gradually to 400mg once a day.

Andre navn:
  • CORT125134

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
HbA1c (measure of average blood sugar over 3 months) levels
Tidsramme: Baseline to 24 weeks

Lab test performed on whole blood hemoglobin to determine the blood sugar level over a 3 month period

Baseline to 24 weeks

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Beta-cell funtion
Tidsramme: Baseline to 24 weeks

Disposition index and C-peptide response during OGTT and euglycemic insulin clamp.

Baseline to 24 weeks
Change in total body fat
Tidsramme: Baseline to 24 weeks

Measured by DEXA scan

Baseline to 24 weeks
Liver and visceral fat
Tidsramme: Baseline to 24 weeks

Measured using MRI PDFF (magnetic resonance imaging-proton density fat fraction)

Baseline to 24 weeks
Liver stiffness
Tidsramme: Baseline to 24 weeks

Assessed using Fibroscan

Baseline to 24 weeks
Change in insulin sensitivity
Tidsramme: Baseline to 20-24 weeks

Assessed using the Oral glucose tolerance test

Baseline to 20-24 weeks

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Samarbeidspartnere

Etterforskere

  • Hovedetterforsker: Ralph DeFronzo, MD, The University of Texas Health Science Center at San Antonio

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

1. desember 2026

Primær fullføring (Antatt)

15. desember 2028

Studiet fullført (Antatt)

15. desember 2029

Datoer for studieregistrering

Først innsendt

3. november 2026

Først innsendt som oppfylte QC-kriteriene

3. november 2026

Først lagt ut (Faktiske)

9. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

9. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

3. november 2026

Sist bekreftet

1. november 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • STUDY00002401

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

Study participant research data, which is for purposes of statistical analysis and scientific reporting, will be transmitted to and stored at the Diabetes division at UT Health. This will not include the participant's contact or identifying information. Rather, individual participants and their research data will be identified by a unique study identification number.

IPD-delingstidsramme

After study completion and data analysis

IPD-deling Støtteinformasjonstype

  • STUDY_PROTOCOL
  • SEVJE

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .