A Study to Assess the Efficacy, Safety, and Tolerability of Oral LPCN 1148 in Male Subjects With Cirrhosis of the Liver and Sarcopenia

Study Overview
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Brief Summary
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This is a randomized, double-blind, placebo-controlled study to assess the efficacy, safety, and tolerability of LPCN 1148 in men with cirrhosis of the liver and sarcopenia.

Detailed Description
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This is a 52-week, multicenter, double-blind, placebo-controlled, two arm study of LPCN 1148 in adult men with cirrhosis of the liver and sarcopenia on the liver transplant waitlist. This study will evaluate the efficacy, safety, and tolerability of LPCN 1148, determined through a range of clinical outcomes and functional and laboratory tests. Approximately 48 subjects will be randomized 1:1 ratio to receive one of the following treatments: Treatment A: Oral LPCN 1148 Treatment B: Oral matching placebo. Subjects will undergo a screening period to determine study eligibility. Adult male subjects with liver cirrhosis and sarcopenia on the transplant list will be enrolled into the study. There are two treatment phases to this study. Stage 1: 24 weeks of blinded study treatment (LPCN 1148 or matching placebo) Stage 2: 28-week open-label extension. Subjects who participate in Stage 1 of this trial will roll over to a 28-week open-label extension phase. All subjects will receive LPCN 1148; there will be no placebo in the extension period.

Official Title
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A Phase 2, Randomized Double-Blind, Placebo-Controlled, Multi-Center Study to Assess the Efficacy, Safety, and Tolerability of Oral LPCN 1148 in Male Subjects With Cirrhosis of the Liver and Sarcopenia

Conditions
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Liver Cirrhosis, Sarcopenia

Intervention / Treatment
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* Drug: LPCN 1148
* Drug: Placebo


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Male ≥ 18 years old Currently listed, on the liver transplant waitlist for cirrhosis secondary to Hepatitis B or C infection, Alcoholic Liver Disease (ALD), Non-Alcoholic Steatohepatitis (NASH), Primary Biliary Cholangitis (PBC), or Primary Sclerosing Cholangitis (PSC) Evidence of sarcopenia with appropriate cutoff recommended by clinical guidance Exclusion Criteria: Suspected or proven hepatocellular carcinoma (HCC) History of current or suspected prostate or breast cancer History of malignancies other than prostate, breast, or HCC, unless successfully treated with curative intent and believed to be cured (defined as complete remission lasting at least 5 years) History of uncontrolled or recurrent portal hypertensive bleeding, including uncontrolled or recurrent bleeding from varices, gastropathy, colopathy, or hemorrhoidal bleeding in the past 6 months. History or current thrombosis (including portal vein thrombosis), thromboembolism, or treatment for portal vein thrombosis History of hemochromatosis History of hypercoagulable state (e.g. Factor V Leiden deficiency, protein C deficiency, protein S deficiency, anti-thrombin III deficiency, or the presence of lupus anticoagulant) Prior history of complications of ascites in the past 6 months including: Spontaneous bacterial peritonitis Hepatic hydrothorax MELD score > 25 Abnormal lab value in serum chemistry, hematology, or urinalysis that the PI considers clinically significant, including but not limited to: PSA > 4 ng/mL Polycythemia (Hematocrit > ULN) or history of polycythemia ALT or AST > 5x ULN ALP > 2x ULN; subjects with PBC or PSC are excluded if ALP is > 10x ULN Platelet count < 30,000/mL EGFR < 30 mL/min/1.73 m2 for subjects not undergoing routine, scheduled dialysis Serum albumin < 2.0 g/dL INR > 2.3 Subjects with PSA between 2.5 ng/mL and 4 ng/mL are excluded only if any of the below criteria are met at baseline: Hematocrit > 48% I-PSS > 19 Any irregularity found on digital rectal examination of the prostate Subjects with PSA > 3 ng/mL are excluded only if any of the below criteria are met at baseline: Subject is African American Subject has a first-degree relative who has a history of prostate cancer Hematocrit > 48% I-PSS > 19 Any irregularity found on digital rectal examination of the prostate Clinically significant abnormal prostate digital rectal examination (DRE) in the opinion of the PI, with DRE screening initiated at International Prostate Symptom Score (I-PSS) > 19 History of bariatric surgery History of stroke or myocardial infarction within the past 5 years History of TIPS within the past 6 months, or TIPS procedure expected within 6 months of Day 1 Known positivity for Human Immunodeficiency Virus (HIV) infection Acute liver failure as the indication for addition to the liver transplant waitlist Estimated life expectancy less than 3 months or expected to undergo liver transplant within 3 months Known heart failure of New York Heart Association class III or IV Evidence of severe encephalopathy at screening encephalopathy that is not controlled despite adequate medical therapy History of prior organ transplant History of Fontan physiology History of pulmonary embolus Porto-pulmonary hypertension Hepatopulmonary syndrome requiring standing home supplemental oxygen therapy, or MELD exception points for hepatopulmonary syndrome Uncontrolled epilepsy or migraine Active substance abuse or dependency extending to within the previous 3 months History of significant sensitivity or allergy to testosterone, or product excipients. Use of known strong inhibitors (e.g., ketoconazole) or inducers (e.g., dexamethasone, phenytoin, rifampin, carbamazepine) of cytochrome P450 3A (CYP3A) within 30 days prior to study drug administration and through the end of the study Subjects who are currently receiving any androgens (testosterone or other androgens or androgen-containing supplements) and are unwilling to washout prior to screening a. Washout: 12 weeks following long-acting intramuscular androgen injections; 4 weeks following topical or buccal androgens; 3 weeks following oral androgens Uncontrolled hypertension (>160/90 mmHg despite treatment) Uncontrolled obstructive sleep apnea Use of any investigational drug within 5 half-lives of the last dose or in the past 6 months prior to Study Day -2 without medical monitor and/or Sponsor approval Subject who is not willing to use adequate contraception for the duration of the study Any other condition, which in the opinion of the investigator would impede compliance to the study protocol (including diet, exercise, and alcohol abstinence) or hinder completion of the study Failure to give informed consent

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Randomized 1:1 to LPCN 1148 or placebo
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: LPCN 1148<br>Oral LPCN 1148 capsules, administered as BID. | Drug: LPCN 1148<br>* LPCN 1148 is an oral capsule product containing an ester prodrug of bioidentical testosterone, designed to enable absorption via intestinal lymphatics.<br>|
| Placebo Comparator: Placebo<br>Oral matching placebo capsules, administered as BID. | Drug: Placebo<br>* Oral matching placebo capsule<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from baseline in Skeletal Muscle Index in LPCN 1148 treated subjects compared to placebo |  | 24 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from baseline in Liver Frailty Index in LPCN 1148 treated subjects compared to placebo |  | Up to 52 weeks | 
| Change in number of waitlist events in LPCN 1148 treated subjects compared to placebo |  | Up to 52 weeks | 
| Change in number of hepatic encephalopathy events in LPCN 1148 treated subjects compared to placebo |  | Up to 52 weeks |