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Small Molecule Agent

Phase 1

Hepatitis, Chronic | Small molecule | Infectious Disease |Pfizer, Inc.|Trials Updated: Jan 14, 2014

Small Molecule Agent target and mechanism

ModalitySmall molecule

Also known as Small Molecule Agent (PF-868554)

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment20

FDA Designations

No designations recorded

Small Molecule Agent clinical trials

Small Molecule Agent · 1 trial · 2 indications

Phase 1 1
NCT00671671Phase 1 Study To Evaluate Antiviral Activity Of Small Molecule Direct Antiviral Agent At Multiple Doses In Subjects With Chronically Infected Hepatitis C Virus.Hepatitis, Chronic
COMPLETED20 Analytics
PHASE1COMPLETED
Phase 1 Study To Evaluate Antiviral Activity Of Small Molecule Direct Antiviral Agent At Multiple Doses In Subjects With Chronically Infected Hepatitis C Virus.
Hepatitis, ChronicUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 11 (Cohort A): Full Analysis Set
Baseline, Day 11

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (lower limit of quantification \[LLOQ\] = 12 international unit per milliliter \[IU/mL\]). Baseline value calculated as an average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 11 for Cohort A).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 11 (Cohort A): Modified Analysis Set
Baseline, Day 11

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Baseline value calculated as an average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 11 for Cohort A).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 4 (Cohort B): Full Analysis Set
Baseline, Day 4

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Baseline value calculated as an average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 4 for Cohort B).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 4 (Cohort B): Modified Analysis Set
Baseline, Day 4

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Baseline value calculated as the average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 4 for Cohort B).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Nadir: Full Analysis Set
Baseline, Nadir (lowest HCV RNA level), assessed up to Day 11 for Cohort A and Day 4 for Cohort B

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Change from baseline in plasma Log10 HCV RNA at nadir signified the maximum change observed during the study.

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Nadir: Modified Analysis Set
Baseline, Nadir (lowest HCV RNA level), assessed up to Day 11 for Cohort A and Day 4 for Cohort B

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Change from baseline in plasma Log10 HCV RNA at nadir signified the maximum change observed during the study.

Secondary Endpoints

Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau)
Predose, 0.5, 1, 2, 6, 8, 12 hours (hrs) postdose on Day 1 for Cohort A and B, pre-evening dose, 0.5, 1, 2, 4, 6, 8, 12 hrs post-evening dose on Day 3 for Cohort B, predose, 0.5, 1, 2, 4, 8, 12 hrs postdose on Day 10 for Cohort A
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
Predose, 0.5, 1, 2, 6, 8, 12, 14 hrs postdose on Day 1 for Cohort A, B, pre-morning dose, pre-evening dose, 0.5, 1, 2, 4, 6, 8, 12, 24, 48 hrs post-evening dose on Day 3 for Cohort B, predose,0.5, 1, 2, 4, 8, 12, 24, 48 hrs postdose on Day 10 for Cohort A
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)]
Pre-morning dose, pre-evening dose, 0.5, 1, 2, 4, 6, 8, 12, 24, 48 hrs post-evening dose on Day 3 for Cohort B, predose,0.5, 1, 2, 4, 8, 12, 24, 48 hrs postdose on Day 10 for Cohort A
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort BEXPERIMENTAL -
Cohort AEXPERIMENTALDose study drug in subjects who have previously failed to respond to interferon based therapies

Interventions

NameTypeDescription
Small Molecule Agent (PF-868554)DRUGStudy drug will be administered 700mg BID in the fed state for three days.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: HCV Positive With HCV RNA\>100,000 iu/ml Genotype 1; COHORT A- non responders or partial Exclusion Criteria: HIV HBV co-infection Decompensated liver disease Liver disease due to causes other than HCV, AFP\>200ng/ml

Countries:United States
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Frequently asked questions about Small Molecule Agent

What is Small Molecule Agent used for?

Small Molecule Agent is an investigational small molecule direct antiviral agent being studied for the treatment of chronic hepatitis C virus infection. It was evaluated in a Phase 1 clinical trial in subjects with chronic HCV infection. It is not approved and remains in clinical development.

Who is developing Small Molecule Agent?

Small Molecule Agent is being developed by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. Pfizer sponsored the Phase 1 study of the compound in chronic hepatitis C virus infection.

What phase is Small Molecule Agent in?

Small Molecule Agent is in Phase 1 clinical development. One Phase 1 trial has been completed, and no active trials are currently listed. It is an investigational agent and has not been approved for any indication.

What clinical trials is Small Molecule Agent in?

Small Molecule Agent has been studied in one completed Phase 1 trial, NCT00671671, titled a Phase 1 study to evaluate antiviral activity of a small molecule direct antiviral agent at multiple doses in subjects with chronically infected hepatitis C virus. The trial enrolled 20 participants in the United States.

Is Small Molecule Agent the same as PF-868554?

Yes, Small Molecule Agent is also known as PF-868554. PF-868554 is the compound identifier used by Pfizer for this investigational small molecule direct antiviral agent. Both names refer to the same Phase 1 hepatitis C virus candidate.