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Angiotensin Receptor Blocker

Losartan for Cardiovascular Disease

Phase 4
Recruiting
Led By Mehrdad Arjomandi, MD
Research Sponsored by University of California, San Francisco
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
No smoking history for >= 20 years at the time of enrollment
Must have a history of occupational exposure to secondhand tobacco smoke for at least 5 years such as flight attendants who worked for airlines before the smoking ban on aircrafts went into effect or casino workers who worked at casinos with no smoke-free policies
Timeline
Screening 3 weeks
Treatment Varies
Follow Up at baseline assessment (v1); 4th week of v2 (placebo/losartan) treatment period; and 4th week of v3 (placebo/losartan) treatment period
Awards & highlights

Study Summary

This trial will test if losartan can improve cardiopulmonary outcomes in people with pre-COPD caused by long-term exposure to secondhand tobacco smoke. The trial is double-blind, meaning neither the participants nor the researchers will know who is taking losartan or the placebo until the trial is over.

Who is the study for?
Adults over 40 with a history of secondhand tobacco smoke exposure for at least 5 years, like former flight attendants or casino workers. They should have smoked less than one pack-year and not smoked for the past 20 years. Participants must be able to consent and follow the study plan but can't join if they're pregnant, breastfeeding, planning pregnancy, have certain heart conditions or blood pressure issues, drug use history (except occasional marijuana), are on specific medications like ACE inhibitors or ARBs, or have severe kidney problems.Check my eligibility
What is being tested?
The trial is testing Losartan's effectiveness in improving heart and lung health against a placebo in people who've been exposed to secondhand smoke but don't yet have COPD. It's a double-blind study where neither participants nor researchers know who gets the real medicine versus the placebo until after results are collected.See study design
What are the potential side effects?
Losartan may cause dizziness due to low blood pressure, increased potassium levels which can affect heart rhythm, mild swelling under the skin especially around eyelids (angioedema), and possible kidney function changes. The side effects often vary from person to person.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I have not smoked for 20 years or more.
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I was exposed to secondhand smoke at work for at least 5 years.
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I have smoked less than 1 pack of cigarettes a year in my life.
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I am 40 years old or older.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~at baseline assessment (v1); 4th week of v2 (placebo/losartan) treatment period; and 4th week of v3 (placebo/losartan) treatment period
This trial's timeline: 3 weeks for screening, Varies for treatment, and at baseline assessment (v1); 4th week of v2 (placebo/losartan) treatment period; and 4th week of v3 (placebo/losartan) treatment period for reporting.

Treatment Details

Study Objectives

Outcome measures can provide a clearer picture of what you can expect from a treatment.
Primary outcome measures
Change in Mean Peak Oxygen Consumption (VO2 Peak) Level
Change in Prevalence of CD14++CD16-
Mean Aortic pulse wave velocity (PWV)
+1 more
Secondary outcome measures
Change in Mean Angiotensin Converting Enzyme (ACE) Level
Change in Mean C-Reactive Protein (CRP) Level
Change in Mean Change in Borg Score
+12 more

Side effects data

From 2021 Phase 4 trial • 227 Patients • NCT02188121
43%
Laboratory values outside normal range
23%
Psychiatric Hospitalization
6%
Medical Hospitalization
2%
Elevated creatine kinase level
1%
Muscle pain
1%
Hypotension
1%
Dehydration
1%
Leukemia
1%
Placed on Lithium while on Losartan
100%
80%
60%
40%
20%
0%
Study treatment Arm
Statin and/or Angiotensin Receptor Blocker
Usual Treatment

Trial Design

2Treatment groups
Experimental Treatment
Group I: Placebo then LosartanExperimental Treatment2 Interventions
Placebo tablets will be administered for the first 4 weeks followed by a washout period of 2 weeks. After the washout period has been completed, losartan tablets will be administered for the next 4 weeks.
Group II: Losartan then PlaceboExperimental Treatment2 Interventions
Losartan tablets will be administered for the first 4 weeks followed by a washout period of 2 weeks. After the washout period has been completed, placebo tablets will be administered for the next 4 weeks.
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
Placebo
1995
Completed Phase 3
~2670
Losartan
2003
Completed Phase 4
~3000

Find a Location

Who is running the clinical trial?

Flight Attendant Medical Research InstituteOTHER
12 Previous Clinical Trials
2,572 Total Patients Enrolled
University of California, San FranciscoLead Sponsor
2,505 Previous Clinical Trials
15,237,455 Total Patients Enrolled
Mehrdad Arjomandi, MDPrincipal InvestigatorUniversity of California, San Francisco
2 Previous Clinical Trials
147 Total Patients Enrolled

Media Library

Losartan (Angiotensin Receptor Blocker) Clinical Trial Eligibility Overview. Trial Name: NCT04715568 — Phase 4
High Blood Pressure Research Study Groups: Placebo then Losartan, Losartan then Placebo
High Blood Pressure Clinical Trial 2023: Losartan Highlights & Side Effects. Trial Name: NCT04715568 — Phase 4
Losartan (Angiotensin Receptor Blocker) 2023 Treatment Timeline for Medical Study. Trial Name: NCT04715568 — Phase 4
High Blood Pressure Patient Testimony for trial: Trial Name: NCT04715568 — Phase 4

Frequently Asked Questions

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is the recruitment process for this study still open?

"Clinicaltrials.gov reports that this medical investigation is actively seeking participants, with the trial first uploaded on March 30th 2021 and amended as recently as April 29th 2022."

Answered by AI

What is the total number of participants in this trial?

"Affirmative. Clinicaltrials.gov's records show that this clinical trial, initially listed on March 30th 2021, is actively recruiting participants from a single location and requires 100 patients in total."

Answered by AI

Has the Food and Drug Administration approved Losartan for medical use?

"The existing data detailing Losartan's safety classifies it as a 3, considering that this is Phase 4 of the clinical trial process and therefore has been approved."

Answered by AI

What is the ultimate aim of this clinical research?

"This clinical trial will be conducted over a 1-day baseline period and aims to measure the Change in Mean Peak Oxygen Consumption (VO2) Level. Secondary outcomes that are being assessed include changes in maximum oxygen pulse, diastolic blood pressure slope, and systolic blood pressue slope."

Answered by AI

What ailments does Losartan commonly address?

"Losartan may be prescribed to those suffering from hypotension, as well as various other maladies including diabetic nephropathy, left ventricular hypertrophy, and proteinuria."

Answered by AI

Who else is applying?

What state do they live in?
California
What portion of applicants met pre-screening criteria?
Met criteria
Did not meet criteria
What site did they apply to?
San Francisco Veterans' Affairs Medical Center
How many prior treatments have patients received?
3+

Why did patients apply to this trial?

I'm tired of using 3 inhalers to keep me from getting exacerbation or worse.
PatientReceived 2+ prior treatments
~35 spots leftby Dec 2025