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Safety and Efficacy of T89 in the Prevention and Treatment of Adults With Acute Mountain Sickness (AMS)

Primary Purpose

Acute Mountain Sickness (AMS)

Status
Recruiting
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
T89 capsule
Placebo capsule
Sponsored by
Tasly Pharmaceuticals, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Acute Mountain Sickness (AMS) focused on measuring Acute Mountain Sickness

Eligibility Criteria

18 Years - 55 Years (Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Healthy volunteers: ages 18 - 55 years old;
  2. Primary residence elevation of 2,461 ft (750m) or lower;
  3. Not ascending to altitude >10,000 ft within 4 months prior to screening;
  4. Females of childbearing potential must have a negative pregnancy test and established on a method of contraception that in the investigator's opinion is acceptable. Females must agree to remain on their established method of contraception from the time of the screening visit and throughout the study period;
  5. Willing to participate voluntarily and sign a written informed consent.

Exclusion Criteria:

  1. Subjects with medical history of cardiovascular, cerebrovascular diseases or asthma; uncontrolled hypertension with SBP>140 and or DBP>90 mmHg;
  2. Subjects with current and clinically significant respiratory system disease, digestive disease, liver disease, central nervous system disease, psychiatric disease, metabolic disease, renal disease, acute infection or anemia, or who test positive for COVID-19 (COVID testing will be performed, not per study requirement, but in compliance with local law or policy, and subject with known positive for COVID-19 will be excluded).
  3. Total LLSS score (LLSS score) is ≥2 at any check point during screening period;
  4. Blood oxygen saturation (SpO2), preferably tested on the left-hand index finger, is less than 95% at screening visits;
  5. Subjects with abnormal renal or liver function with clinical significance (ALT or AST > 2×ULN, Creatinine > ULN) at screening visit;
  6. Subjects with CRP > ULN at screening visit;
  7. Subjects with primary (migraine, tension-type headache, and cluster headache etc.) or secondary headaches (headache related to infection, vascular disease etc.) within one month at screening;
  8. Surgery or blood donation within 3 months prior to screening;
  9. On treatment of any medications (including any dietary supplements) except for birth control within 14 days prior to screening and throughout the study period;
  10. Smokers who had a habit of smoking during the last 4 months prior to the starting of screening;
  11. Contradictive to treatment of Danshen (Radix Saliva Miltiorrhize Bge., RSM) products;
  12. Women who are pregnant or lactating.
  13. Substance abuse. Subjects with a recent (within the last 6 months) history of substance abuse (alcohol, marijuana, or known drug dependence). Or subjects who have a positive urine substance test at screening;
  14. Participation in any other interventional clinical trial or on an investigational drug within 30 days prior to screening;
  15. A family member or relative of the study site staff;
  16. Any condition that, in the opinion of the investigator, is likely to prevent compliance with the study protocol, interfere with the assessment, or pose a safety concern if the subject participates in the study at screening.

Sites / Locations

  • Hypoxia Research Lab, UCSF Parnassus Campus, S-256
  • Affiliated Hospital of Chengdu University of TCMRecruiting
  • Tibet Autonomous Region People's HospitalRecruiting

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Placebo Comparator

Arm Label

T89 low-dose group

T89 high-dose group

Placebo group

Arm Description

Subjects in this group will take three T89 capsules and one Placebo capsule each time by oral administration three times daily for 5 days.

Subjects in this group will take four T89 capsules each time by oral administration three times daily for 5 days.

Placebo capsule does not contain any amount of active substance. Subjects in this group will take four placebo capsules each time by oral administration three times daily for 5 days.

Outcomes

Primary Outcome Measures

Change of baseline corrected mean LLSS score on Day 4 morning (next mornings after arrival at high altitude) between T89 and placebo groups.
2018 Lake Louise Scoring System (LLSS) score [0-12] will be used in this primary outcome assessment. The higher LLSS scores mean the worse symptoms of AMS. Baseline will be the average of LLSS scores on Day 2 and the one on Day 3 before breakfast.

Secondary Outcome Measures

The change of blood oxygen saturation levels (SpO2) at high altitude between T89 and placebo groups.
Blood oxygen saturation (SpO2) will be measured by pulse oximeter at sea level (on screening day, Day 2 and Day 3 morning) and at high altitude (Day 3 after arriving and Day 4-Day 6).
The change of the area under the curve (AUC) of baseline corrected LLSS score-time profile between T89 and placebo groups.
AUC of based corrected LLSS score-time curve during altitude stay will be compared between T89 and placebo groups.
The change in total incidence of LLSS score ≥5 on Day 4 morning between T89 and placebo groups.
Total incidence of LLSS score ≥5 will be recorded on Day 4 morning. The difference between T89 and placebo groups will be compared.
The change of percentage reduction of the daily total LLSS score from Day 4 to Day 5 between T89 and placebo groups.
Proportional reduction of the daily total LLSS score from Day 4 to Day 5 at high altitude will be compared between T89 and placebo groups.
The change of baseline corrected LLSS score at any given time points between T89 and placebo groups.
2018 Lake Louise Scoring System (LLSS) score [0-12] will be used in this primary outcome assessment. The higher LLSS scores mean the worse symptoms of AMS. Baseline corrected LLSS score will be assessed at every time points at high altitude from Day 3 to Day 6.
The change of total functional LLSS score at any given time points between T89 and placebo groups.
The functional score [0-3] will be self-reported using the 1993 Lake Louise Acute Mountain Sickness Score System to evaluate how did AMS symptoms affect subjects' activities, if they have AMS symptoms. The higher functional scores mean the worse symptoms of AMS.
Accumulated incidence rate of subjects who underwent any rescue activity in transit and after ascending between T89 and placebo groups.
The total incidence of subjects who received rescue medicine, oxygen or descent to lower level will be recorded in transit and after arriving high altitude.
The change of exercise tolerance at high altitude (on Day 3 after arriving and Day 5, respectively) from those of at sea level baseline between T89 and placebo groups.
Exercise tolerance test will be performed on bicycle ergometer.
The change of the symptom-related AE drop-out rate between T89 and placebo groups.
The symptom-related AE drop-out rate is proportion of participants who dropped out study because of adverse event.
The change of blood pressure (mmHg) during at high altitude from those of at sea level baseline on Day 1 (prior to the first dose administration) between T89 and placebo groups.
Unit of blood pressure is mmHg. Both systolic blood pressure (SBP) and diastolic blood pressure (DBP) will be recorded. Blood pressure will be measured at each applicable visit during the whole study period (screening day, Day 2-Day 6).
The change of heart rate (beats/minute) at high altitude from those of at sea level baseline on Day 1 (prior to the first dose administration) between T89 and placebo groups.
Unit of heart rate is beats/minute. Heart rate will be measured at each applicable visit during the whole study period (screening day, Day 2-Day 6).

Full Information

First Posted
July 14, 2021
Last Updated
May 4, 2023
Sponsor
Tasly Pharmaceuticals, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT04993729
Brief Title
Safety and Efficacy of T89 in the Prevention and Treatment of Adults With Acute Mountain Sickness (AMS)
Official Title
A Multicenter, Double-blind, Randomized and Placebo-controlled Pivotal Phase 3 Study to Evaluate the Safety and Efficacy of T89 in the Prevention and Treatment of Acute Mountain Sickness (AMS) After Rapid Ascent
Study Type
Interventional

2. Study Status

Record Verification Date
May 2023
Overall Recruitment Status
Recruiting
Study Start Date
July 21, 2021 (Actual)
Primary Completion Date
December 2023 (Anticipated)
Study Completion Date
April 2024 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Tasly Pharmaceuticals, Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
The specific aim of this double blind, randomized phase III trial is to evaluate the safety and efficacy of T89 in preventing Acute Mountain Sickness (AMS) and relieving the symptoms of AMS after rapid ascent.
Detailed Description
Acute mountain sickness (AMS) is a common ailment in people venturing over 2,500 meters altitude. It is a pathological effect of high altitude on humans, caused by acute exposure to low partial pressure of oxygen at high altitude. It presents with a cluster of nonspecific symptoms including headache and one of the following: gastrointestinal symptoms, fatigue and/or weakness, dizziness/ lightheadedness or difficulty sleeping. T89 capsule is a modernized industrialized version of a traditional Chinese herbal medicine. It is a botanical drug product for oral use. Previous clinical studies showed T89 has substantial benefits in the prevention or amelioration of symptoms associated with acute mountain sickness (AMS).This is double-blind, randomized, placebo controlled pivotal phase 3 study. After informed consent is obtained, eligible subjects will be randomized to one of the 3 study groups (T89 high dose, T89 low dose and placebo control). The study drug will be given orally for 5 days (2 days at sea level and 3 days at high altitude). The clinical assessment of Lake Louise Scoring System (LLSS), blood oxygen saturation, the exercise tolerance, blood pressure and heart rate will be performed at sea level and altitude. A total of 846 subjects will be enrolled with 282 subjects in each treatment arm, and a minimum of 756 subjects are expected to complete the study.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Acute Mountain Sickness (AMS)
Keywords
Acute Mountain Sickness

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
846 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
T89 low-dose group
Arm Type
Experimental
Arm Description
Subjects in this group will take three T89 capsules and one Placebo capsule each time by oral administration three times daily for 5 days.
Arm Title
T89 high-dose group
Arm Type
Experimental
Arm Description
Subjects in this group will take four T89 capsules each time by oral administration three times daily for 5 days.
Arm Title
Placebo group
Arm Type
Placebo Comparator
Arm Description
Placebo capsule does not contain any amount of active substance. Subjects in this group will take four placebo capsules each time by oral administration three times daily for 5 days.
Intervention Type
Drug
Intervention Name(s)
T89 capsule
Intervention Description
T89 capsule (trade name Dantonic®) is a botanical drug containing 75mg active substance which is the water extract of Danshen and Sanqi. T89 capsules, p.o. TID.
Intervention Type
Drug
Intervention Name(s)
Placebo capsule
Intervention Description
Placebo capsules, p.o. TID.
Primary Outcome Measure Information:
Title
Change of baseline corrected mean LLSS score on Day 4 morning (next mornings after arrival at high altitude) between T89 and placebo groups.
Description
2018 Lake Louise Scoring System (LLSS) score [0-12] will be used in this primary outcome assessment. The higher LLSS scores mean the worse symptoms of AMS. Baseline will be the average of LLSS scores on Day 2 and the one on Day 3 before breakfast.
Time Frame
Baseline and day 4
Secondary Outcome Measure Information:
Title
The change of blood oxygen saturation levels (SpO2) at high altitude between T89 and placebo groups.
Description
Blood oxygen saturation (SpO2) will be measured by pulse oximeter at sea level (on screening day, Day 2 and Day 3 morning) and at high altitude (Day 3 after arriving and Day 4-Day 6).
Time Frame
Baseline and days 3-6
Title
The change of the area under the curve (AUC) of baseline corrected LLSS score-time profile between T89 and placebo groups.
Description
AUC of based corrected LLSS score-time curve during altitude stay will be compared between T89 and placebo groups.
Time Frame
Baseline and days 3-6
Title
The change in total incidence of LLSS score ≥5 on Day 4 morning between T89 and placebo groups.
Description
Total incidence of LLSS score ≥5 will be recorded on Day 4 morning. The difference between T89 and placebo groups will be compared.
Time Frame
Day 4 morning
Title
The change of percentage reduction of the daily total LLSS score from Day 4 to Day 5 between T89 and placebo groups.
Description
Proportional reduction of the daily total LLSS score from Day 4 to Day 5 at high altitude will be compared between T89 and placebo groups.
Time Frame
Days 4-5
Title
The change of baseline corrected LLSS score at any given time points between T89 and placebo groups.
Description
2018 Lake Louise Scoring System (LLSS) score [0-12] will be used in this primary outcome assessment. The higher LLSS scores mean the worse symptoms of AMS. Baseline corrected LLSS score will be assessed at every time points at high altitude from Day 3 to Day 6.
Time Frame
Baseline and days 3-6
Title
The change of total functional LLSS score at any given time points between T89 and placebo groups.
Description
The functional score [0-3] will be self-reported using the 1993 Lake Louise Acute Mountain Sickness Score System to evaluate how did AMS symptoms affect subjects' activities, if they have AMS symptoms. The higher functional scores mean the worse symptoms of AMS.
Time Frame
Baseline and days 3-6
Title
Accumulated incidence rate of subjects who underwent any rescue activity in transit and after ascending between T89 and placebo groups.
Description
The total incidence of subjects who received rescue medicine, oxygen or descent to lower level will be recorded in transit and after arriving high altitude.
Time Frame
Days 3-6
Title
The change of exercise tolerance at high altitude (on Day 3 after arriving and Day 5, respectively) from those of at sea level baseline between T89 and placebo groups.
Description
Exercise tolerance test will be performed on bicycle ergometer.
Time Frame
Baseline and days 3 and 5
Title
The change of the symptom-related AE drop-out rate between T89 and placebo groups.
Description
The symptom-related AE drop-out rate is proportion of participants who dropped out study because of adverse event.
Time Frame
Days 3-6
Title
The change of blood pressure (mmHg) during at high altitude from those of at sea level baseline on Day 1 (prior to the first dose administration) between T89 and placebo groups.
Description
Unit of blood pressure is mmHg. Both systolic blood pressure (SBP) and diastolic blood pressure (DBP) will be recorded. Blood pressure will be measured at each applicable visit during the whole study period (screening day, Day 2-Day 6).
Time Frame
Screening day, days 2-6
Title
The change of heart rate (beats/minute) at high altitude from those of at sea level baseline on Day 1 (prior to the first dose administration) between T89 and placebo groups.
Description
Unit of heart rate is beats/minute. Heart rate will be measured at each applicable visit during the whole study period (screening day, Day 2-Day 6).
Time Frame
Screening day, days 2-6

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
55 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy volunteers: ages 18 - 55 years old; Primary residence elevation of 2,461 ft (750m) or lower; Not ascending to altitude >10,000 ft within 4 months prior to screening; Females of childbearing potential must have a negative pregnancy test and established on a method of contraception that in the investigator's opinion is acceptable. Females must agree to remain on their established method of contraception from the time of the screening visit and throughout the study period; Willing to participate voluntarily and sign a written informed consent. Exclusion Criteria: Subjects with medical history of cardiovascular, cerebrovascular diseases or asthma; uncontrolled hypertension with SBP>140 and or DBP>90 mmHg; Subjects with current and clinically significant respiratory system disease, digestive disease, liver disease, central nervous system disease, psychiatric disease, metabolic disease, renal disease, acute infection or anemia, or who test positive for COVID-19 (COVID testing will be performed, not per study requirement, but in compliance with local law or policy, and subject with known positive for COVID-19 will be excluded). Total LLSS score (LLSS score) is ≥2 at any check point during screening period; Blood oxygen saturation (SpO2), preferably tested on the left-hand index finger, is less than 95% at screening visits; Subjects with abnormal renal or liver function with clinical significance (ALT or AST > 2×ULN, Creatinine > ULN) at screening visit; Subjects with CRP > ULN at screening visit; Subjects with primary (migraine, tension-type headache, and cluster headache etc.) or secondary headaches (headache related to infection, vascular disease etc.) within one month at screening; Surgery or blood donation within 3 months prior to screening; On treatment of any medications (including any dietary supplements) except for birth control within 14 days prior to screening and throughout the study period; Smokers who had a habit of smoking during the last 4 months prior to the starting of screening; Contradictive to treatment of Danshen (Radix Saliva Miltiorrhize Bge., RSM) products; Women who are pregnant or lactating. Substance abuse. Subjects with a recent (within the last 6 months) history of substance abuse (alcohol, marijuana, or known drug dependence). Or subjects who have a positive urine substance test at screening; Participation in any other interventional clinical trial or on an investigational drug within 30 days prior to screening; A family member or relative of the study site staff; Any condition that, in the opinion of the investigator, is likely to prevent compliance with the study protocol, interfere with the assessment, or pose a safety concern if the subject participates in the study at screening.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Henry H Sun, PhD, MD
Phone
301-978-3899
Email
HSun@taslyUS.com
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Henry H Sun, PhD, MD
Organizational Affiliation
Tasly Pharmaceuticals, Inc.
Official's Role
Study Chair
Facility Information:
Facility Name
Hypoxia Research Lab, UCSF Parnassus Campus, S-256
City
San Francisco
State/Province
California
ZIP/Postal Code
94143
Country
United States
Individual Site Status
Completed
Facility Name
Affiliated Hospital of Chengdu University of TCM
City
Chengdu
State/Province
Sichuan
ZIP/Postal Code
610032
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Jieping Zeng, PhD, MD
Phone
15928914195
Email
zengjieping2000@126.com
First Name & Middle Initial & Last Name & Degree
Jieping Zeng, PhD, MD
Facility Name
Tibet Autonomous Region People's Hospital
City
Lhasa
State/Province
Tibet
ZIP/Postal Code
850000
Country
China
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Luobu Gesang, PhD, MD
Phone
13549010066
Email
gesang5354@sina.com
First Name & Middle Initial & Last Name & Degree
Luobu Gesang, PhD, MD

12. IPD Sharing Statement

Plan to Share IPD
No

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Safety and Efficacy of T89 in the Prevention and Treatment of Adults With Acute Mountain Sickness (AMS)

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