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Effect of Verapamil on Pancreatic Beta Cell Function in Newly Diagnosed Pediatric Type 1 Diabetes: A Randomized Clinical Trial
Open accessAbstract
Importance: In preclinical studies, thioredoxin-interacting protein overexpression induces pancreatic beta cell apoptosis and is involved in glucotoxicity-induced beta cell death. Calcium channel blockers reduce these effects and may be beneficial to beta cell preservation in type 1 diabetes. Objective: To determine the effect of verapamil on pancreatic beta cell function in children and adolescents with newly diagnosed type 1 diabetes. Design, Setting, and Participants: This double-blind, randomized clinical trial including children and adolescents aged 7 to 17 years with newly diagnosed type 1 diabetes who weighed 30 kg or greater was conducted at 6 centers in the US (randomized participants between July 20, 2020, and October 13, 2021) and follow-up was completed on September 15, 2022. Interventions: Participants were randomly assigned 1:1 to once-daily oral verapamil (n = 47) or placebo (n = 41) as part of a factorial design in which participants also were assigned to receive either intensive diabetes management or standard diabetes care. Main Outcomes and Measures: The primary outcome was area under the curve values for C-peptide level (a measure of pancreatic beta cell function) stimulated by a mixed-meal tolerance test at 52 weeks from diagnosis of type 1 diabetes. Results: Among 88 participants (mean age, 12.7 [SD, 2.4] years; 36 were female [41%]; and the mean time from diagnosis to randomization was 24 [SD, 4] days), 83 (94%) completed the trial. In the verapamil group, the mean C-peptide area under the curve was 0.66 pmol/mL at baseline and 0.65 pmol/mL at 52 weeks compared with 0.60 pmol/mL at baseline and 0.44 pmol/mL at 52 weeks in the placebo group (adjusted between-group difference, 0.14 pmol/mL [95% CI, 0.01 to 0.27 pmol/mL]; P = .04). This equates to a 30% higher C-peptide level at 52 weeks with verapamil. The percentage of participants with a 52-week peak C-peptide level of 0.2 pmol/mL or greater was 95% (41 of 43 participants) in the verapamil group vs 71% (27 of 38 participants) in the placebo group. At 52 weeks, hemoglobin A 1c was 6.6% in the verapamil group vs 6.9% in the placebo group (adjusted between-group difference, −0.3% [95% CI, −1.0% to 0.4%]). Eight participants (17%) in the verapamil group and 8 participants (20%) in the placebo group had a nonserious adverse event considered to be related to treatment. Conclusions and Relevance: In children and adolescents with newly diagnosed type 1 diabetes, verapamil partially preserved stimulated C-peptide secretion at 52 weeks from diagnosis compared with placebo. Further studies are needed to determine the longitudinal durability of C-peptide improvement and the optimal length of therapy. Trial Registration: ClinicalTrials.gov Identifier: NCT04233034
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“In two trials-one in adults and the other in children, both with stage 3 type 1 diabetes-verapamil slowed the decline in Cpeptide responses to a mixed meal, more than placebo.36,37”
From The future of type 1 diabetes therapy (2025) · cites this paper as [37]
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An analysis of the remission phase in type 1 diabetes within a multiethnic Brazilian sample
Ramos, M. E. N., Leão, I. S., Vezzani, J. R. D., Campos, L., Luescher, J., Berardo, R., Zajdenverg, L., & Rodacki, M. (2024) · Jornal de Pediatria · doi:10.1016/j.jped.2024.09.005 · Cited by 1
Steineck, I. I. K., Anderzén, J., Eeg‐Olofsson, K., Ekelund, J., Guðbjörnsdóttir, S., Hanberger, L., Nåtman, J., Lyckå, A. P., Samuelsson, U., Särnblad, S., et al. (2024) · Diabetes Research and Clinical Practice · doi:10.1016/j.diabres.2024.111807 · Cited by 2
Arefanian, H., Madhoun, A. S. A., Al‐Rashed, F., Alzaïd, F., Bahman, F., Nizam, R., Alhusayan, M., John, S. E., Jacob, S. P., Williams, M. R., et al. (2024) · Cells · doi:10.3390/cells13110949 · Cited by 1
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Personalizing Early-Stage Type 1 Diabetes in Children
Limbert, C., Berge, T. V. D., & Danne, T. (2023) · Diabetes Care · doi:10.2337/dci23-0025 · Cited by 2
Carré, A., Zhou, Z.-C., Perez-Hernandez, J., Samassa, F., Lekka, C., Manganaro, A., Oshima, M., Liao, H., Parker, R., Nicastri, A., et al. (2023) · bioRxiv · doi:10.1101/2023.09.15.557918 · Cited by 1
Update on technologies, medicines and treatments
O'Neill, S. (2023) · Diabetic Medicine · doi:10.1111/dme.15113 · Cited by 1
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Galderisi, A., & Bismuth, É. (2026) · Médecine des Maladies Métaboliques · doi:10.1016/j.mmm.2026.09.027
Daşıran, M. F., Daghmoura, H., Akbaş, A., Angın, Y. S., Akbaş, B., Aygün, H., Uyanıkgil, Y., & Erbaş, O. (2026) · Pharmaceuticals · doi:10.3390/ph19091346
Stage‐Adapted Disease‐Modifying Therapy in Type 1 Diabetes
Ye, C., Jin, Z., & Hu, S. S. (2026) · Diabetes Obesity and Metabolism · doi:10.1111/dom.71210
Lan, Y., Kovinthapillai, R., Kędzia, A. W., & Niechciał, E. (2026) · Journal of Clinical Medicine · doi:10.3390/jcm15155865 · Cited by 1
“Randomized clinical trials in newly diagnosed pediatric T1D have shown that verapamil can modestly preserve C-peptide secretion, and combination regimens with immunotherapies are under active investigation [85,86,127].”
Motlagh, R. A., Morelli, N. R., Alcasid, N., & Thompson, P. J. (2026) · Islets · doi:10.1080/19382014.2026.2692859
von Herrath, M., Lemos, J. R. N., & Knop, F. K. (2026) · Expert Review of Clinical Immunology · doi:10.1080/1744666x.2026.2702447
“A candidate for the latter is verapamil, a calcium channel blocker shown to preserve C-peptide secretion [62] by inhibiting thioredoxin-interacting protein (TXNIP), reducing ER stress, and preserving beta cell function, as demonstrated in preclinical and early clinical studies [63,64].”
Lipidomic predictors of residual insulin production in adults with newly diagnosed type 1 diabetes
Hostrup, P. E., Sulek, K., & Pociot, F. (2026) · Metabolomics · doi:10.1007/s11306-026-02465-x
“However, despite extensive efforts, only a few clinical trials have demonstrated significant improvements in beta cell function and with uncertain clinical relevance (Forlenza et al., 2023; Quattrin et al., 2020; Ramos et al., 2023) .”
Wouters, A., Mathieu, C., & Gysemans, C. A. (2026) · Autoimmunity Reviews · doi:10.1016/j.autrev.2026.104120
Relevance of Quantitative Measures of Beta-Cell Function in Clinical Practice
Galderisi, A., Dayan, C. M., Colhoun, H. M., & Gregory, J. M. (2026) · Hormone Research in Paediatrics · doi:10.1159/000552501
Similar diabetogenic pathways in transplant immunosuppression and COVID-19: a narrative review
Afrooghe, A., Ahmadi, E., Mehranjani, M. S., Esteghamati, A., & Dehpour, A. R. (2026) · European journal of medical research · doi:10.1186/s40001-026-04453-2
“Other β-cell survival enhancers such as verapamil that reduce thiore-doxin-interacting protein (TXNIP) and have shown promise in preserving stimulated C-peptide in recent-onset type 1 diabetes are also mechanistically attractive and worth exploring [97].”
From disease heterogeneity to precision therapy in type 1 diabetes mellitus
Nigi, L., Pagano, R., Sarti, F., Sebastiani, G., & Dotta, F. (2026) · Endocrine · doi:10.1007/s12020-026-04637-0
Pipella, J., & Thompson, P. J. (2026) · Diabetes Obesity and Metabolism · doi:10.1111/dom.70711
“In paediatric patients, verapamil preserved C-peptide and reduced progression of β-cell decline, with 95% of the verapamil treated patients maintaining clinically meaningful insulin production [39].”
Zheng, C., Lu, S., Qiang, D., Xu, J., & Xu, Y. (2026) · Diabetes/Metabolism Research and Reviews · doi:10.1002/dmrr.70120
“In contrast, ATG [59, 60], ATG + GCSF [59, 61], CCBs [62, 63], IT + VD‐”
Iyer, P. C., Kikani, N. J., Khan, S., Chaudhri, A., Pagnotti, G. M., Best, C. J., Weitzman, S., Mehta, P. P., Lavis, V. R., Thosani, S., et al. (2025) · Expert Review of Endocrinology & Metabolism · doi:10.1080/17446651.2025.2593621
“To date, 2 trials have shown preservation of c-peptide secretion in those with newly diagnosed type 1 diabetes [116,117].”
Lido, P., Lullo, L. D., Infante, M., Ricordi, C., Rezk, S., Romanello, D., D'Urso, G., Ceravolo, M. J., Della-Morte, D., Tesauro, M., et al. (2025) · Current Medical Research and Opinion · doi:10.1080/03007995.2025.2544594
“…on 88 children and adolescents with recent-onset T1DM found that once-daily oral verapamil (extended-release formulation of verapamil; dose escalated to a maximum of 360 mg/day), as compared to placebo, partly preserved endogenous insulin secretion at 52 weeks from the disease diagnosis 139 .”
Why study the T1D remission phase in the pediatric population?
Johannesen, J. (2024) · Jornal de Pediatria · doi:10.1016/j.jped.2024.12.001
“12 Recently, strategies focusing upon beta-cell rescue by anti-viral treatment 13 and beta-cell protection by verapamil 14 have demonstrated higher stimulated-peptide levels compared to placebo 12 months post-diagnosis.”
Etiopatogenia y situación epidemiológica de la diabetes mellitus tipo 1
Cebada, A. B., Silva, J. B. Q., Escobar-Morreale, H. F., & Chávez, L. N. (2024) · Medicine - Programa de Formación Médica Continuada Acreditado · doi:10.1016/j.med.2024.10.001
Januszewski, A. S., Grzelka‐Woźniak, A., Flotyńska, J., Jenkins, A. J., Zozulińska‐Ziółkiewicz, D., & Uruska, A. A. (2024) · Journal of Diabetes and its Complications · doi:10.1016/j.jdiacomp.2024.108828
Müller‐Wieland, D., Miszon, M., Dunstheimer, D., Forst, T. M., Kapellen, T. M., Schnell, O., & Kellerer, M. (2024) · Diabetologie und Stoffwechsel · doi:10.1055/a-2377-7108 · Cited by 1
Updates in the Management of Type 1 Diabetes
Mallik, R., & Kar, P. S. (2024) · Journal of the Association of Physicians of India · doi:10.59556/japi.72.0405
Typ-1-Diabetes – Neue Aspekte in Therapie & Technologie 2024
Schimmel, T., & Ebert, T. (2024) · Die Diabetologie · doi:10.1007/s11428-024-01204-x
Shared etiology of Mendelian and complex disease supports drug discovery
Lalagkas, P. N., & Melamed, R. (2024) · Research Square · doi:10.21203/rs.3.rs-4250176/v1
“Notably, verapamil has recently been tested in a phase III clinical trial for T1D treatment(25).”
BackgroundImmunotherapy options for type 1 diabetes in children and adolescents
Průhová, Š., Berka, B., Neuman, V., & Šumnı́k, Z. (2024) · Pediatrie pro praxi · doi:10.36290/ped.2024.015
Evaluation of Combined Serum C-Peptide and Glycated Hemoglobin in the Clinical Diagnosis of Diabetes
Huang, Z.-M., & Luo, X. (2023) · Journal of Biomaterials and Tissue Engineering · doi:10.1166/jbt.2023.3346
Munir, K. M., & Davis, S. N. (2023) · Expert Opinion on Pharmacotherapy · doi:10.1080/14656566.2023.2241354
Verapamil and Pancreatic Beta Cell Function in Pediatric Type 1 Diabetes
Hsu, N., Tsai, H., & Hsu, C. (2023) · JAMA · doi:10.1001/jama.2023.9110 · Cited by 1
Typ-1-Diabetes: Screening, Prävention und neue Therapien
Kick, K., Teichgräber, F. J., & Achenbach, P. (2023) · Diabetes aktuell · doi:10.1055/a-2093-9851
“Eine aktuelle klinische Studie untersuchte die Wirkung von Verapamil auf die Betazellfunktion der Bauchspeicheldrüse bei Kindern und Jugendlichen im Alter von 7–17 Jahren mit neu diagnostiziertem Typ-1-Diabetes [37].”
BackgroundFelton, J. L., Griffin, K., Oram, R. A., Speake, C., Long, S. A., Önengüt-Gümüşcü, S., Rich, S. S., Monaco, G. S. F., Evans‐Molina, C., DiMeglio, L. A., et al. (2023) · medRxiv · doi:10.1101/2023.04.12.23288421
Self-citation
Metadata
- Authors
- Forlenza, G. P., McVean, J., Beck, R. W., Bauza, C., Bailey, R., Buckingham, B., DiMeglio, L. A., Sherr, J. L., Clements, M., Neyman, A., Evans-Molina, C., Sims, E. K., Messer, L. H., Ekhlaspour, L., McDonough, R., Van Name, M., Rojas, D., Beasley, S., DuBose, S., Kollman, C., Moran, A., CLVer Study Group, Moran, A., McVean, J., Beasley, S., Pappenfus, B., Street, A., Nelson, B., Leschyshyn, J., Kennedy, J., Rizky, I., Forlenza, G., Cobry, E., Messer, L., Slover, R., Wadwa, P., Towers, L., Karami, A., Fivekiller, E., Boranian, E., Escobar, E., Jost, E., Lange, S., Berget, C., Geiser, L., Clements, M., Moore, W., McDonough, R., Paprocki, E., Halpin, K., Yan, Y., Livingston, E., Howell, K., Seuferling, B., Parish, S., Orlich, S., Goff, R., Neyman, A., DiMeglio, L., Woerner, S., Evans-Molina, C., Sims, E., Kirchner, M., Chatila, D., Buckingham, B., Ekhlasour, L., Norlander, L., Frank, E., Suh, B., Morgan, M., Kingman, R., Hsu, L., Sherr, J., Weyman, K., Tichy, E., Van Name, M., Brei, M., Steffen, A., Carria, L., Zgorski, M., Bauza, C., Beck, R., Bailey, R., Kollman, C., DuBose, S., Rojas, D., Cagnina, N., Reese, N., Strayer, H., Smith, E., Frey, S., Vyas, S., Rosen, J., Dutta, S., Janicek, R., Gabrielson, D., Yu, L., Stablein, D., Klingensmith, G., & Rodrigeuz, H.
- Affiliations
- Barbara Davis Center, Anschutz Medical Campus, University of Colorado, Aurora
- Jaeb Center for Health Research, Tampa, Florida
- Indiana University School of Medicine, Indianapolis
- Yale School of Medicine, Yale University, New Haven, Connecticut
- University of California, San Francisco (US)
- University of Minnesota (US)
- for the CLVer Study Group
- ORCID
- Venue
- JAMA
- Publisher
- American Medical Association (AMA)
- Published
- 2023-03-28
- Volume
- 329
- Issue
- 12
- Pages
- 990
- ISSN
- 0002-9955 (ISSN-L)
- 0098-7484
- PMC
- PMC9960020
- OpenAlex
- W4321749334
- Cited by
- 169
- References
- 25
- Citations by year
- 2026: 27 · 2025: 48 · 2024: 56 · 2023: 38
- FWCI
- 45.28
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- JAMA (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- IUScholarWorks (Indiana University) (submittedVersion)
- Funders
- National Institutes of Health (UL1TR001863)
- National Institute of Diabetes and Digestive and Kidney Diseases (R01DK121929, R01DK127308, K23DK121942, P30DK097512, R01DK133881)
- National Center for Advancing Translational Sciences
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Pancreatic function and diabetes
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Diabetes and associated disorders
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
- Keywords
- verapamil, type 1 diabetes, pediatric diabetes, newly diagnosed diabetes, beta-cell function, C-peptide, calcium channel blockers, TXNIP, beta-cell apoptosis, glucotoxicity, intensive diabetes management, mixed meal tolerance test, beta-cell preservation, children and adolescents, intensive insulin therapy, islet autoimmunity, HLA-DR4
- MeSH terms
- Adolescent, C-Peptide, Child, Diabetes Mellitus, Type 1, Double-Blind Method, Female, Humans, Hypoglycemic Agents, Male, Verapamil, Insulin-Secreting Cells
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