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A Study to Learn How the Body Processes the Study Medicine Called Osivelotor (PF-07940367) in People With Loss of Liver Function

NCT06340347

CompletedPhase 1

Sponsor: Pfizer

Conditions: Liver Diseases

Interventions: Osivelotor

Countries: United States

The purpose of this study is to understand how Osivelotor is processed in people with loss of liver function. This study is seeking participants that are: * stable loss of liver function with mild or moderate severity * none of underlying conditions possibly affecting the study medicine being absorbed by the body All participants will receive one amount of Osivelotor by mouth before breakfast on the first day at the study clinic. A number of blood samples will be collected to understand how Osivelotor is changed and removed from the body. Participants will also have to undergo physical examination and other tests. This will help to understand if Osivelotor is safe. Participants will take part in the study for a maximum of 112 days. During this time, participants will have to stay onsite for 5 days. There will be 5 study visits at the study clinic.

Eligibility overview

Sex: ALL

Age: 18 Years to —

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria

Inclusion Criteria:

* Body mass index (BMI) of 16 to 40 kg/m2, inclusive; and a total body weight greater than 50 kg (greater than 110 lb)
* Stable hepatic impairment that meets the criteria for Class A or B of the Child Pugh classification with no clinically significant change in disease status within the 28 days prior to the screening visit
* Stable concomitant medications for the management of individual participants' medical history

Exclusion Criteria:

* Any condition possibly affecting drug absorption (eg, prior bariatric surgery, gastrectomy, ileal resection, prior status portacaval shunt surgery);
* Hepatic carcinoma or hepatorenal syndrome or limited predicted life expectancy;
* A diagnosis of hepatic dysfunction secondary to any acute ongoing hepatocellular process that is documented by medical history, physical examination, liver biopsy, hepatic ultrasound, computerized tomography scan, or MRI;
* Presence of clinically active Stage 3 or 4 hepatic encephalopathy. Clinically active Stage 2 encephalopathy is allowed if, in the opinion of the investigator, the participant is able to provide informed consent.

Locations (3)

Lake Forest, California, United States
Tampa, Florida, United States
Philadelphia, Pennsylvania, United States