Paxlovid copycat pills put to the test – but study pulled

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and standard 12-lead ECG (electrocardiogram). * Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures. * Female participants of childbearing potential must have a negative pregnancy test at screening and on Day -1. * BMI (Body Mass Index) of 16-32 kg/m2; and a total body weight \>50 kg (110 lb). * Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the ICD (Informed consent Document) and in this protocol. Exclusion Criteria: * Positive test result for SARS-CoV-2 infection at the time of Screening or Day -1. * Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing). * Any condition possibly affecting drug absorption (eg, gastrectomy, cholecystectomy). * History of HIV (Human Immunodeficiency Virus) infection, Hepatitis B, or Hepatitis C; positive testing for HIV, HBsAg (Hepatitis B surface Antigen), HBcAb (Hepatitis B core Antibody) or HCVAb (Hepatitis C Virus Antibody). Hepatitis B vaccination is allowed. * Any medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality or other conditions that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study. * Use of prescription or nonprescription drugs and dietary and herbal supplements within 7 days or 5 half-lives (whichever is longer) prior to the first dose of study intervention. * Participants who have received a COVID-19 vaccine within 7 days before screening or admission, or who are to be vaccinated with a COVID-19 vaccine at any time during the study confinement period. * A positive urine drug test.