Esta página foi traduzida automaticamente e a precisão da tradução não é garantida. Por favor, consulte o versão em inglês para um texto fonte.

Safety and Dose-Response of Bletilla Formosana in Prediabetic Subjects

14 de julho de 2026 atualizado por: YUAN-CHIEH YEH, Chang Gung Memorial Hospital

A Phase I/II Randomized, Double-Blind, Placebo-Controlled Pilot Trial Evaluating the Safety and Dose-Response of Bletilla Formosana in Prediabetic Subjects

This study evaluates the safety and preliminary efficacy of Bletilla formosana (BF), a traditional herbal medicine, in adults with prediabetes. Prediabetes is a high-risk condition where blood sugar levels are elevated, often leading to type 2 diabetes. While lifestyle changes are the standard treatment, researchers are exploring herbal supplements as a complementary way to support metabolic health. Preclinical research has shown that BF possesses anti-inflammatory properties and may help regulate blood glucose. Participants in this study will be randomly assigned to receive either a high dose of BF, a low dose of BF, or a placebo (an inactive substance) for 12 weeks. The total study duration is approximately 24 weeks, involving four clinic visits for blood tests and safety monitoring to see how BF affects blood sugar markers and inflammation.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Descrição detalhada

This is a single-center, Phase I/II, randomized, double-blind, placebo-controlled, parallel-design trial. The primary goal is to translate robust preclinical findings-where BF extract was shown to inhibit neutrophil-driven inflammation and improve glycemic parameters in animal models-into clinical evidence.

A total of 94 prediabetic subjects (defined by FPG 100-125 mg/dL or HbA1c 5.7%-6.4%) will be enrolled.

Participants will be randomized in a 2:2:1 ratio into one of the following three arms:

High-dose group: 3g Bletilla formosana powder daily. Low-dose group: 1.5g Bletilla formosana powder plus 1.5g placebo daily. Placebo group: 3g inactive placebo powder daily.

The study consists of three distinct phases:

Screening Phase: Up to 2 weeks for eligibility confirmation. Treatment Phase: 12 weeks of oral administration. Follow-up Phase: 12 weeks post-treatment to evaluate sustained efficacy and safety outcomes.

Phase I objectives focus on safety and tolerability, with adverse events (AEs) and serious adverse events (SAEs) graded according to CTCAE v5.0.

Phase II objectives explore preliminary efficacy through changes in fasting plasma glucose (FPG), HbA1c, and HOMA-IR.

Secondary endpoints include assessment of inflammatory biomarkers (TNF-α, IL-6, and CRP) and lipid profiles.

Clinical assessments, including 12-lead ECG and comprehensive laboratory testing, are scheduled at Screening, Week 6, Week 12 (end of treatment), and Week 24 (end of study).

Tipo de estudo

Intervencional

Inscrição (Estimado)

94

Estágio

  • Fase 2
  • Fase 1

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Locais de estudo

  • Taiwan
      • Keelung, Taiwan, 204
        • Keelung Chang Gung Memorial Hospital
        • Contato:
        • Contato:
        • Investigador principal:
          • Yuan-Chieh Yeh, MD
      • Taoyuan, Taiwan, 333
        • Taoyuan Chang Gung Memorial Hospital
        • Contato:
        • Contato:
      • Taoyuan, Taiwan, 333
        • Linkou Chang Gung Memorial Hospital
        • Contato:
        • Contato:
        • Investigador principal:
          • Hsing-Yu Chen, MD

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion Criteria:

  1. Adults aged 30-70 years.
  2. Prediabetes defined by any of the following:
  3. Fasting Plasma Glucose (FPG) of 100-125 mg/dL, or
  4. Glycated hemoglobin (HbA1c) of 5.7%-6.4%.
  5. Willingness to provide written informed consent and comply with study procedures.

Exclusion Criteria:

  1. Established type 1 or type 2 diabetes mellitus, or recent use of oral antidiabetic agents or insulin (within 3 months).
  2. Abnormal liver function, defined as Alanine aminotransferase (ALT) or Aspartate aminotransferase (AST) exceeding 2-fold the upper reference limit (≥2 × ULN) at screening.
  3. Abnormal renal function, defined as serum creatinine (Cr) >1.5 mg/dL or Estimated Glomerular Filtration Rate (eGFR) <60 mL/min/1.73 m².
  4. Gastrointestinal disorders that may affect drug absorption, such as gastrostomy, enterostomy, severe chronic diarrhea, or malabsorption syndrome.
  5. Severe comorbidities within the past 6 months, including major stroke, myocardial infarction, major trauma, or major surgery.
  6. Recent use of medications (within 1 month) that may significantly alter blood glucose or lipids, such as systemic corticosteroids or non-stable doses of lipid-lowering agents.
  7. Malignant tumor under active treatment, or immunodeficiency/autoimmune disorders requiring immunosuppressive therapy.
  8. Psychiatric disorders or cognitive impairment that may affect protocol compliance.
  9. Active use of other investigational drugs within 3 months prior to screening.
  10. Pregnancy or lactation.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Triplo

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: High-dose Bletilla formosana (BF)
Participants receive 3g of Bletilla formosana powder daily for 12 weeks. To maintain blinding, the total dose is divided into two 1.5g sachets (one in the morning and one in the evening).
Medicamento: Bletilla formosana (BF) powder
A traditional Chinese medicinal herb (Taiwanese ground orchid). The raw material is derived from the approved botanical species and medicinal part listed in the Taiwan Herbal Pharmacopoeia.
Experimental: Low-dose Bletilla formosana (BF)
Participants receive 1.5g of Bletilla formosana powder and 1.5g of placebo powder daily for 12 weeks. To maintain blinding, this is administered as one active sachet and one matching placebo sachet (one in the morning and one in the evening).
Medicamento: Bletilla formosana (BF) powder
A traditional Chinese medicinal herb (Taiwanese ground orchid). The raw material is derived from the approved botanical species and medicinal part listed in the Taiwan Herbal Pharmacopoeia.
Outro: Placebo
An inactive powder matching the appearance and dosage form of the BF powder, consisting of starch and caramel coloring.
Comparador de Placebo: Placebo
Participants receive 3g of inactive placebo powder daily for 12 weeks. To maintain blinding, this is administered as two matching placebo sachets (one in the morning and one in the evening).
Outro: Placebo
An inactive powder matching the appearance and dosage form of the BF powder, consisting of starch and caramel coloring.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Number of Participants with at Least One Treatment-Emergent Adverse Event (AE)
Prazo: From baseline to Week 24.
Incidence of all adverse events (AEs) graded by CTCAE v5.0.
From baseline to Week 24.
Number of Participants with Serious Adverse Events (SAEs)
Prazo: From baseline to Week 24
Number of participants experiencing life-threatening or fatal events according to ICH-GCP definitions.
From baseline to Week 24
Change from Baseline in Fasting Plasma Glucose (FPG) (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Change in fasting blood sugar levels to assess the preliminary glycemic efficacy of Bletilla formosana.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Glycated Hemoglobin (HbA1c) (%)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of average blood glucose control over time.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Homeostatic Model Assessment for Insulin Resistance (HOMA-IR)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Calculated using fasting insulin and glucose levels to assess changes in insulin sensitivity.
Baseline, Week 6, Week 12, and Week 24.

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Change from Baseline in Tumor Necrosis Factor-alpha (TNF-α) (pg/mL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
To evaluate the anti-inflammatory effects of Bletilla formosana.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Interleukin-6 (IL-6) (pg/mL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
To evaluate the anti-inflammatory effects of Bletilla formosana.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in C-reactive protein (CRP) (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
To evaluate the anti-inflammatory effects of Bletilla formosana.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Total Cholesterol (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of lipid profiles using standard laboratory methods
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in High-Density Lipoprotein (HDL) (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of lipid profiles using standard laboratory methods.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Low-Density Lipoprotein (LDL) (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of lipid profiles using standard laboratory methods.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Triglycerides (TG) (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of lipid profiles using standard laboratory methods.
Baseline, Week 6, Week 12, and Week 24.

Outras medidas de resultado

Medida de resultado
Descrição da medida
Prazo
Change from Baseline in Alanine Aminotransferase (ALT) (U/L)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Aspartate Aminotransferase (AST) (U/L)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Total Bilirubin (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Blood Urea Nitrogen (BUN) (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Serum Creatinine (mg/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in White Blood Cell Count (WBC) (10^3/μL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Hemoglobin (Hb) (g/dL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.
Change from Baseline in Platelet Count (10^3/μL)
Prazo: Baseline, Week 6, Week 12, and Week 24.
Assessment of clinical laboratory safety tests to monitor hepatic, renal, and hematologic function.
Baseline, Week 6, Week 12, and Week 24.

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Chang Gung Memorial Hospital

Colaboradores

National Science and Technology Council

Investigadores

  • Investigador principal: Yuan-Chieh Yeh, MD, Chang Gung Memorial Hospital

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de julho de 2026

Conclusão Primária (Estimado)

1 de julho de 2027

Conclusão do estudo (Estimado)

1 de agosto de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

23 de junho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

14 de julho de 2026

Primeira postagem (Real)

15 de julho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

15 de julho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

14 de julho de 2026

Última verificação

1 de julho de 2026

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • 202500720A3C6002
  • NSTC 114-2321-B-255-001 (Número de outro subsídio/financiamento: National Science and Technology Council)

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Descrição do plano IPD

The study team does not have a plan to share individual participant data at this time to maintain participant confidentiality as stated in the informed consent.

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

Se inscrever