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Key Diagnostic & Therapeutic Technologies for Severe Acute High Altitude Disease (SAHAD): Integration and Application (SAHAD)

7 de junho de 2026 atualizado por: Gesang Lobb, Tibet Autonomous Region People's Hospital

Integration and Application Demonstration of Key Diagnosis and Treatment Technologies for Severe Acute High Altitude Disease

This study aims to establish a key technical system for the diagnosis and treatment of severe acute mountain sickness based on real-world clinical data in Xizang, develop standardized diagnosis and treatment protocols and an intelligent early warning model, validate its efficacy through multicenter studies, and innovate diagnostic and therapeutic technologies. It will achieve early identification, precise diagnosis, standardized treatment, and intelligent warning of severe acute mountain sickness, comprehensively improving its prevention, control and treatment success rate.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Tipo de estudo

Intervencional

Inscrição (Estimado)

3035

Estágio

  • Não aplicável

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

Locais de estudo

    • Tibet
      • Lhasa, Tibet, China, 850000
        • Xizang Autonomous Region People's Hospital
        • Contato:

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

Sim

Descrição

Inclusion Criteria:

  1. Meeting the diagnostic criteria for severe acute mountain sickness (including high-altitude pulmonary edema [HAPE] and high-altitude cerebral edema [HACE]).
  2. Aged 18 to 75 years.
  3. Rapid ascent to an altitude above 2500 m within 72 hours prior to onset.

Exclusion Criteria:

  1. History of severe cardiopulmonary diseases.
  2. Pregnant women, patients with psychiatric disorders, inability to cooperate with treatment or follow-up, and patients with an expected survival of less than 6 months.
  3. Patients with malignant tumors, severe hepatic or renal insufficiency, or immune system diseases requiring immunosuppressive therapy.

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: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Sem intervenção: HAPE: Calcium Channel Blocker (CCB) Group
Calcium Channel Blocker (CCB) Group: Nifedipine sustained-release tablets: 30-60 mg/day, orally in 2-3 divided doses;
Sem intervenção: HAPE:Glucocorticoid Group
Dexamethasone: 8-16 mg/day, intravenous injection, tapering off after 3-5 days; Methylprednisolone: 40-80 mg/day, intravenous injection; Prednisone: 40-60 mg/day, oral administration;
Sem intervenção: HAPE:Diuretic Group
Furosemide: 40-80 mg/day, administered intravenously or orally; Spironolactone: 40-80 mg/day, administered orally; Note: Strictly monitor electrolytes and renal function.
Sem intervenção: HAPE:Theophylline Drugs Group
Aminophylline: 0.25-0.5g, intravenous drip, 1-2 times a day; Doxofylline: 200mg, intravenous drip, 2 times a day;
Sem intervenção: HAPE:Combined Treatment Group
CCB + Glucocorticoid: Nifedipine + Dexamethasone; Glucocorticoid + Diuretic: Dexamethasone + Furosemide; Triple Therapy: CCB + Glucocorticoid + Diuretic.
Sem intervenção: HACE:Osmotic Diuretic Group
0.5-1.0 g/kg, rapid intravenous infusion, once every 6-8 hours; Hypertonic saline: 3% sodium chloride solution, 250 ml intravenous infusion. Monitoring indicators: intracranial pressure, blood osmotic pressure, renal function.
Sem intervenção: HACE:Intensive Glucocorticoid Treatment Group
High-dose dexamethasone: 16-32 mg/day, intravenously; Methylprednisolone pulse therapy: 500-1000 mg/day for 3 days, followed by dosage tapering. Treatment course: 7-10 days with gradual dose reduction.
Sem intervenção: HACE:Combined Intracranial Pressure-Reducing Treatment Group
Mannitol + Glucocorticoid: Mannitol 0.5 g/kg + Dexamethasone 16 mg/day; Hypertonic saline + Glucocorticoid: 3% NaCl + Methylprednisolone; Triple therapy: Mannitol + Glucocorticoid + Diuretic.
Sem intervenção: HACE:Other Adjuvant Drug Group
Furosemide: 20-40 mg/day to reduce cerebral edema; Albumin: 25% albumin 50 ml to increase plasma colloid osmotic pressure; Sodium aescinate: 20-40 mg/day to improve vascular permeability.
Experimental: Multicenter Study of HAPE:Traditional Classic Treatment Group
Oxygen inhalation plus CCB or aminophylline
Traditional treatment plus CPAP or BiPAP
Traditional treatment plus inhaled nitric oxide therapy (20-40 ppm, continuous administration for 12-24 hours)
Experimental: Protocol for Proteomics and Peptidomics Study of HAPE:Control Group
40 healthy individuals who are either migrant residents or indigenous residents at high altitude. Age, gender, and residential altitude were strictly matched. Peripheral venous blood samples were collected during the same period.
40 patients clinically diagnosed with HAPE. Peripheral venous blood samples were collected during the acute onset stage and prior to any effective intervention.
Sem intervenção: HAPE Database
To establish a High-Altitude Pulmonary Edema (HAPE) Database (≥1000 cases) through a multicenter retrospective study.
Sem intervenção: HACE Database
To establish a High-Altitude Pulmonary Edema (HACE) Database (≥400 cases) through a multicenter retrospective study.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
HAPE:Recovery
Prazo: From date of disease onset to achievement of recovery criteria ,assessed up to 36 months

Patients are defined as recovered only when all of the following criteria are met simultaneously:

Resolution of clinical symptoms: complete relief of dyspnea (no shortness of breath at rest), disappearance of cough and expectoration, and resolution of chest tightness or chest pain.

Restoration of normal physical signs: complete disappearance of lung crackles, resolution of cyanosis, and heart rate < 100 beats per minute at rest.

Normalization of physiological parameters: blood oxygen saturation (SpO₂) ≥ 90% above 3500 m altitude (≥ 88% above 4000 m altitude) and normal arterial blood gas analysis (if performed).

Improvement on imaging studies: clear bilateral lung fields on chest X-ray, and resolution of alveolar exudation without significant effusion on chest CT.

Meeting hospital discharge criteria: stable condition for more than 48 hours, recovery of self-care ability, and no requirement for continuous oxygen therapy.

From date of disease onset to achievement of recovery criteria ,assessed up to 36 months
HACE :recovery
Prazo: From date of disease onset to achievement of recovery criteria ,assessed up to 36 months

Patients are defined as recovered only when all of the following criteria are met simultaneously:

Recovery of consciousness: Glasgow Coma Score (GCS) of 15, full restoration of orientation, and no signs of impaired consciousness.

Resolution of neurological symptoms: complete relief of headache, and disappearance of ataxia, nausea, vomiting, blurred vision, and other related symptoms.

Normal neurological signs: disappearance of pathological reflexes, negative meningeal irritation signs, and normal cranial nerve function.

Improvement on imaging: resolution of cerebral edema, no mass effect, and normal ventricular system on head CT or MRI.

Meeting hospital discharge criteria: stable condition for more than 72 hours, recovery of activities of daily living, and no requirement for special monitoring.

From date of disease onset to achievement of recovery criteria ,assessed up to 36 months
Death
Prazo: From admission to discharge, or all-cause mortality within 30 days and 90 days after discharge.
Death is defined as all-cause mortality occurring during hospitalization, or all-cause mortality within 30 days and 90 days after discharge.
From admission to discharge, or all-cause mortality within 30 days and 90 days after discharge.
Length of hospital stay
Prazo: The total duration from the first day of hospitalization to recovery and discharge, assessed up to 36 months
From the first day of admission to the day of discharge
The total duration from the first day of hospitalization to recovery and discharge, assessed up to 36 months

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
HAPE:Improvement
Prazo: At discharge(assessed up to 5 days)

Clinical symptoms improved by ≥50%, manifested as significant relief of dyspnea (no shortness of breath during mild activity), marked reduction in cough and expectoration, and alleviation of chest discomfort.

Physiological indicators improved, including a decrease in heart rate by ≥20 beats per minute from baseline, an increase in blood oxygen saturation by ≥5% compared with admission, and a respiratory rate < 24 breaths per minute.

Imaging examinations showed a ≥50% reduction in pulmonary exudation on chest radiograph compared with admission, or a significant reduction in lesion extent on chest CT.

At discharge(assessed up to 5 days)
Length of ICU/CCU stay
Prazo: From date of the first day admimion in the ICU until the last day in the ICU, up to 48 weeks.
From the first day of admission to the day of discharge
From date of the first day admimion in the ICU until the last day in the ICU, up to 48 weeks.
Duration of mechanical ventilation
Prazo: From the date of the first day of mechanical ventilation until the last day of mechanical ventilation,up to 48 weeks.
Duration of mechanical ventilation, calculated in hours
From the date of the first day of mechanical ventilation until the last day of mechanical ventilation,up to 48 weeks.
Total hospitalization cost (CNY)
Prazo: At discharge(assessed up to 5 days)
total expenses incurred during hospitalization
At discharge(assessed up to 5 days)
Time to independence from oxygen therapy (days)
Prazo: At discharge(assessed up to 5 days)
Duration of oxygen therapy during hospitalization (days)
At discharge(assessed up to 5 days)
HAPE:incidence of complications
Prazo: From date of admission until the date of discharge, and within 30 days and 90 days after discharge,up to 48 weeks.
such as pulmonary embolism, pneumothorax, infection, etc
From date of admission until the date of discharge, and within 30 days and 90 days after discharge,up to 48 weeks.
HACE:improved
Prazo: At discharge(assessed up to 5 days)

A patient is defined as having "improved" if meeting the following core criteria:

Improved consciousness: Glasgow Coma Scale (GCS) score increased by ≥3 points from admission, partial recovery of orientation, and improved response to stimuli.

Improved neurological symptoms: ≥50% reduction in headache severity (VAS score), significant improvement in ataxia, and decreased nausea and vomiting.

Improved physiological indicators: heart rate decreased by ≥15 beats per minute from baseline, blood oxygen saturation increased by ≥5% compared with admission, and blood pressure controlled within the normal range.

At discharge(assessed up to 5 days)
HACE:Incidence of complications
Prazo: From date of admission until the date of discharge, and within 30 days and 90 days after discharge,up to 48 weeks.
such as seizures, intracranial infection, brain herniation, permanent neurological deficit
From date of admission until the date of discharge, and within 30 days and 90 days after discharge,up to 48 weeks.
HACE:Modified Rankin Scale (mRS) score at 90 days
Prazo: From the first day of admission to 90 days thereafter

specifically categorized as: 0 (no symptoms),

  1. (no significant disability),
  2. (slight disability),
  3. (moderate disability),
  4. (moderately severe disability),
  5. (severe disability), and 6 (death).
From the first day of admission to 90 days thereafter

Colaboradores e Investigadores

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

Patrocinador

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)

20 de dezembro de 2028

Conclusão do estudo (Estimado)

31 de dezembro de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

14 de maio de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

7 de junho de 2026

Primeira postagem (Real)

10 de junho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

10 de junho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

7 de junho de 2026

Última verificação

1 de junho de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • ME-TBHP-25-090

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

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

produto fabricado e exportado 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 .