NCT06510894

Brief Summary

This is a pilot mechanistic study of the diagnostic utility of sodium-glucose cotransporter-1/2 inhibition (SGLT1/2) on myocardial glucose suppression on FDG PET/CT. The investigators will test whether the addition of a SGLT1/2 inhibitor (SGLT1/2i) plus the standard dietary modification (ketogenic diet) will provide enhanced myocardial glucose suppression. The primary objective is to assess rates of complete myocardial glucose suppression (MGS) with 7 days of sotagliflozin 400 mg QD among healthy volunteers on a background of 1 day (N=20) or 3 days (N=20) of the KD. The secondary goal is to investigate the relationship between sotagliflozin, targeted metabolite levels, and myocardial glucose utilization on FDG-PET. Participants will be asked to:

  • undergo a screening visit that includes blood tests, vitals, and questions regarding health history/medications
  • take the provided sotagliflozin as instructed for 7 days leading up to the scan
  • follow a ketogenic diet as instructed for 1 or 3 days leading up to the scan
  • undergo an FDG PET/CT scan, which includes vitals and blood draws

Trial Health

77
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for all trials

Timeline
20mo left

Started Nov 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress47%
Nov 2024Dec 2027

First Submitted

Initial submission to the registry

July 15, 2024

Completed
4 days until next milestone

First Posted

Study publicly available on registry

July 19, 2024

Completed
4 months until next milestone

Study Start

First participant enrolled

November 20, 2024

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

January 7, 2026

Status Verified

January 1, 2026

Enrollment Period

2.1 years

First QC Date

July 15, 2024

Last Update Submit

January 6, 2026

Conditions

Keywords

sarcoidosisCardiac SacroidosisSGLT1/2 InhibitionMyocardial Glucose SuppressionKetogenic DietsotagliflozinHealthy volunteerPET/CT

Outcome Measures

Primary Outcomes (1)

  • Complete myocardial glucose suppression

    Rate of complete myocardial glucose suppression after 7-day regimen of sotagliflozin

    7 days

Secondary Outcomes (1)

  • Myocardial glucose utilization

    7 days

Study Arms (1)

Ketogenic Diet with sotagliflozin

40 volunteers will take a SGLT1/2i, sotagliflozin (400 mg QD), for 7 days prior to the PET scan visit and will undergo FDG PET/CT after 1-3 day of dietary modification (ketogenic diet for at least 3-9 meals) and overnight fasting prior to FDG injection.

Drug: Sotagliflozin

Interventions

Sodium-glucose cotransporter-1/2 inhibitor

Also known as: INPEFA
Ketogenic Diet with sotagliflozin

Eligibility Criteria

Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

40 evaluable healthy volunteers

You may qualify if:

  • Adult patients, at least 18 years of age
  • No history of cardiovascular disease, including hypertension, hyperlipidemia, diabetes mellitus, heart failure, coronary artery disease, cardiac surgery, arrhythmias per medical record review and/or self-report
  • No history of chronic liver or kidney disease per medical record review and/or self-report.
  • Participants must be informed of the investigational nature of this study and provide written informed consent in accordance with institutional and federal guidelines prior to study-specific procedures.

You may not qualify if:

  • Females who are pregnant or breast-feeding will not be eligible for this study. Female participants of child-bearing potential will have a urine pregnancy test during the screening visit and prior to FDG injection.
  • Participants who are currently taking diuretics for any indication.
  • Participants with an eGFR level \<30 mL/min/1.73m2.
  • Inability to tolerate imaging procedures in the opinion of the investigator or treating physician.
  • Any other medical or psychological condition that, in the opinion of the investigator would compromise the subject's safety or successful participation in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

RECRUITING

Related Publications (17)

  • LONGCOPE WT, FREIMAN DG. A study of sarcoidosis; based on a combined investigation of 160 cases including 30 autopsies from The Johns Hopkins Hospital and Massachusetts General Hospital. Medicine (Baltimore). 1952 Feb;31(1):1-132. No abstract available.

  • Silverman KJ, Hutchins GM, Bulkley BH. Cardiac sarcoid: a clinicopathologic study of 84 unselected patients with systemic sarcoidosis. Circulation. 1978 Dec;58(6):1204-11. doi: 10.1161/01.cir.58.6.1204.

  • Sharma OP, Maheshwari A, Thaker K. Myocardial sarcoidosis. Chest. 1993 Jan;103(1):253-8. doi: 10.1378/chest.103.1.253. No abstract available.

  • Kron J, Sauer W, Schuller J, Bogun F, Crawford T, Sarsam S, Rosenfeld L, Mitiku TY, Cooper JM, Mehta D, Greenspon AJ, Ortman M, Delurgio DB, Valadri R, Narasimhan C, Swapna N, Singh JP, Danik S, Markowitz SM, Almquist AK, Krahn AD, Wolfe LG, Feinstein S, Ellenbogen KA. Efficacy and safety of implantable cardiac defibrillators for treatment of ventricular arrhythmias in patients with cardiac sarcoidosis. Europace. 2013 Mar;15(3):347-54. doi: 10.1093/europace/eus316. Epub 2012 Sep 21.

  • Hiramitsu S, Morimoto S, Uemura A, Kato Y, Kimura K, Ohtsuki M, Kato S, Sugiura A, Miyagishima K, Hishida H, Sugisaki K, Tsuda T. National survey on status of steroid therapy for cardiac sarcoidosis in Japan. Sarcoidosis Vasc Diffuse Lung Dis. 2005 Oct;22(3):210-3.

  • Maurer AH, Burshteyn M, Adler LP, Gaughan JP, Steiner RM. Variable cardiac 18FDG patterns seen in oncologic positron emission tomography computed tomography: importance for differentiating normal physiology from cardiac and paracardiac disease. J Thorac Imaging. 2012 Jul;27(4):263-8. doi: 10.1097/RTI.0b013e3182176675.

  • Cheng VY, Slomka PJ, Ahlen M, Thomson LE, Waxman AD, Berman DS. Impact of carbohydrate restriction with and without fatty acid loading on myocardial 18F-FDG uptake during PET: A randomized controlled trial. J Nucl Cardiol. 2010 Apr;17(2):286-91. doi: 10.1007/s12350-009-9179-5. Epub 2009 Dec 15.

  • Harisankar CN, Mittal BR, Agrawal KL, Abrar ML, Bhattacharya A. Utility of high fat and low carbohydrate diet in suppressing myocardial FDG uptake. J Nucl Cardiol. 2011 Oct;18(5):926-36. doi: 10.1007/s12350-011-9422-8. Epub 2011 Jul 6.

  • BING RJ, SIEGEL A, UNGAR I, GILBERT M. Metabolism of the human heart. II. Studies on fat, ketone and amino acid metabolism. Am J Med. 1954 Apr;16(4):504-15. doi: 10.1016/0002-9343(54)90365-4. No abstract available.

  • Alfawara MS, Ahmed AI, Saad JM, Han Y, Alahdab F, Al Rifai M, Kassi M, Alnabelsi T, Zoghbi WA, Al-Mallah MH. The utility of beta-hydroxybutyrate in detecting myocardial glucose uptake suppression in patients undergoing inflammatory [18F]-FDG PET studies. Eur J Nucl Med Mol Imaging. 2023 Mar;50(4):1103-1110. doi: 10.1007/s00259-022-06062-7. Epub 2022 Dec 7.

  • Madamanchi C, Weinberg RL, Murthy VL. Utility of serum ketone levels for assessment of myocardial glucose suppression for 18F-fluorodeoxyglucose PET in patients referred for evaluation of endocarditis. J Nucl Cardiol. 2023 Jun;30(3):928-937. doi: 10.1007/s12350-023-03209-3. Epub 2023 Feb 23.

  • Selvaraj S, Margulies KB, Dugyala S, Schubert E, Tierney A, Arany Z, Pryma DA, Shah SH, Rame JE, Kelly DP, Bravo PE. Comparison of Exogenous Ketone Administration Versus Dietary Carbohydrate Restriction on Myocardial Glucose Suppression: A Crossover Clinical Trial. J Nucl Med. 2022 May;63(5):770-776. doi: 10.2967/jnumed.121.262734. Epub 2021 Oct 21.

  • Selvaraj S, Fu Z, Jones P, Kwee LC, Windsor SL, Ilkayeva O, Newgard CB, Margulies KB, Husain M, Inzucchi SE, McGuire DK, Pitt B, Scirica BM, Lanfear DE, Nassif ME, Javaheri A, Mentz RJ, Kosiborod MN, Shah SH; DEFINE-HF Investigators. Metabolomic Profiling of the Effects of Dapagliflozin in Heart Failure With Reduced Ejection Fraction: DEFINE-HF. Circulation. 2022 Sep 13;146(11):808-818. doi: 10.1161/CIRCULATIONAHA.122.060402. Epub 2022 May 23.

  • Selvaraj S, Kelly DP, Margulies KB. Implications of Altered Ketone Metabolism and Therapeutic Ketosis in Heart Failure. Circulation. 2020 Jun 2;141(22):1800-1812. doi: 10.1161/CIRCULATIONAHA.119.045033. Epub 2020 Jun 1.

  • Lauritsen KM, Nielsen BRR, Tolbod LP, Johannsen M, Hansen J, Hansen TK, Wiggers H, Moller N, Gormsen LC, Sondergaard E. SGLT2 Inhibition Does Not Affect Myocardial Fatty Acid Oxidation or Uptake, but Reduces Myocardial Glucose Uptake and Blood Flow in Individuals With Type 2 Diabetes: A Randomized Double-Blind, Placebo-Controlled Crossover Trial. Diabetes. 2021 Mar;70(3):800-808. doi: 10.2337/db20-0921. Epub 2020 Dec 17.

  • Santos-Gallego CG, Requena-Ibanez JA, San Antonio R, Ishikawa K, Watanabe S, Picatoste B, Flores E, Garcia-Ropero A, Sanz J, Hajjar RJ, Fuster V, Badimon JJ. Empagliflozin Ameliorates Adverse Left Ventricular Remodeling in Nondiabetic Heart Failure by Enhancing Myocardial Energetics. J Am Coll Cardiol. 2019 Apr 23;73(15):1931-1944. doi: 10.1016/j.jacc.2019.01.056.

  • Hanson P, Randeva H, Cuthbertson DJ, O'Hare PJ, Parsons N, Chatha K, Reidy G, Weickert MO, Barber TM. The DAPA-DIET study: Metabolic response to Dapagliflozin combined with dietary carbohydrate restriction in patients with Type 2 Diabetes Mellitus and Obesity-A longitudinal cohort study. Endocrinol Diabetes Metab. 2022 Nov;5(6):e381. doi: 10.1002/edm2.381. Epub 2022 Oct 20.

Biospecimen

Retention: SAMPLES WITH DNA

Blood samples taken at two timepoints.

MeSH Terms

Conditions

Sarcoidosis

Interventions

(2S,3R,4R,5S,6R)-2-(4-chloro-3-(4-ethoxybenzyl)phenyl)-6-(methylthio)tetrahydro-2H-pyran-3,4,5-triol

Condition Hierarchy (Ancestors)

Lymphoproliferative DisordersLymphatic DiseasesHemic and Lymphatic DiseasesHypersensitivity, DelayedHypersensitivityImmune System Diseases

Study Officials

  • Paco Bravo, MD

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor of Radiology and Medicine; Divisions of Nuclear Medicine, Cardiothoracic Imaging and Cardiovascular Medicine; Director, Nuclear Cardiology and Cardiovascular Molecular Imaging

Study Record Dates

First Submitted

July 15, 2024

First Posted

July 19, 2024

Study Start

November 20, 2024

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2027

Last Updated

January 7, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations