- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04577001
Letrozole in Patients With Hepatopulmonary Syndrome
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This study is a phase II randomized, double-blind, placebo-controlled parallel trial of 20 subjects with hepatopulmonary syndrome designed to assess the effect of letrozole 2.5 mg orally daily or placebo for 6 months on the alveolar-arterial oxygen gradient (AaPO2).
Subjects at each site will be screened at outpatient clinic visit appointments and interested qualified subjects will be consented and offered participation in this trial. Once consent has been obtained baseline values will be established and subjects will begin letrozole with follow-up clinic visits and testing at 3 months, and 6 months.
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Jackie Reiter
- Phone Number: (507) 538-2224
- Email: Reiter.Jacqulyn@mayo.edu
Study Locations
-
-
California
-
San Francisco, California, United States, 94143
- Recruiting
- University of California San Francisco
-
Contact:
- Yvonne Kelly, M.D
- Email: Yvonne.Kelly@ucsf.edu
-
Principal Investigator:
- Yvonne Kelly, MD
-
-
Minnesota
-
Rochester, Minnesota, United States, 55902
- Recruiting
- Mayo Clinic
-
Contact:
- Jackie R Reiter
- Phone Number: 507-538-2224
- Email: Reiter.Jacqulyn@mayo.edu
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria
Diagnosis of moderate to very severe hepatopulmonary syndrome which consists of having all 3 of the following conditions:
- Presence of liver disease or portal hypertension
- Intrapulmonary shunting on contrast-enhanced echocardiogram
- Hypoxemia [A-a gradient ≥15mmHg (or ≥20mmHg if age >64) and PaO2<80mmHg on arterial blood gas testing]
- Child-Pugh class A or B liver disease
- MELD score < 20
- ≥ 18 years old
- Female subjects must be post-menopausal (defined as 12 months of spontaneous amenorrhea or 6 weeks postsurgical bilateral oophorectomy without or without hysterectomy)
- Ability to provide informed consent
Exclusion Criteria
- Enrollment in a clinical trial or concurrent use of another investigational drug or device therapy (i.e., outside of study treatment) during, or within 28 days of baseline
- Current hepatic encephalopathy
- Expectation of liver transplant within six months of randomization
- MELD exception score > 28
- Concomitant lung disease defined as restriction (TLC < 70%) or obstruction (FEV1 < 80% & FEV1/FVC < 70%)
- Inability to comply with the study protocol
- Osteoporosis
- Premenopausal women (those who have not reached 1 year absence of menarche)
- Vulnerable study population, including imprisoned individuals, non-English speaking patients
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Letrozole Group
Subjects with hepatopulmonary syndrome will get the study drug letrozole
|
2.5 mg orally daily for 6 months
|
Placebo Comparator: Placebo Group
Subjects with hepatopulmonary syndrome will get the study placebo
|
No active ingredient taken orally daily for 6 months
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Alveolar-Arterial Oxygen
Time Frame: 6 months
|
To determine whether letrozole affects alveolar-arterial oxygen gradient (AaPO2) at 6 months in patients with HPS.
|
6 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Hormone Levels
Time Frame: 6 months
|
To determine whether letrozole affects estradiol, progesterone, testosterone levels at 6 months
|
6 months
|
Oxygen Saturation
Time Frame: 3 and 6 months
|
• To determine whether letrozole affects oxygen saturation from pulse oximetry at 3 months 6 months and distance walked in 6 minutes in patients with HPS
|
3 and 6 months
|
Side effects
Time Frame: 6 months
|
• To determine the safety and adverse effects associated with letrozole administration in patients with HPS
|
6 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Hilary M DuBrock, MD, Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Digestive System Diseases
- Pathologic Processes
- Respiratory Tract Diseases
- Lung Diseases
- Disease
- Liver Diseases
- Syndrome
- Hepatopulmonary Syndrome
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Antineoplastic Agents
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Hormone Antagonists
- Aromatase Inhibitors
- Steroid Synthesis Inhibitors
- Estrogen Antagonists
- Letrozole
Other Study ID Numbers
- 19-005779
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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