Trial Outcomes & Findings for A Study to Compare Two Tablet Forms of Tafamidis in Healthy Participants (NCT NCT05482308)

NCT ID: NCT05482308

Last Updated: 2024-05-23

Results Overview

The AUCinf was determined by AUClast+ (Clast\*/kel), where Clast\* is the predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis; kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

12 participants

Primary outcome timeframe

Days 1 (Pre-dose,0.5,1,2,3,4,6,8,12 hours post dose),2,3,4,5,6,7 and 8 in both Periods 1 and 2.

Results posted on

2024-05-23

Participant Flow

This is a 2-period,fixed-sequence crossover study. A total of 12 participants were randomized and assigned to study treatments.

Participant milestones

Participant milestones
Measure
Variant 12.2 mg Tafamidis Free Acid Tablet ->Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet
Participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet on Day 1 of Period 1, then after a washout of at least 16 days, participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet.
Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet ->Variant 12.2 mg Tafamidis Free Acid Tablet
Participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet on Day 1 of Period 1 ,then after a washout of at least 16 days, participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet.
Overall Study
STARTED
6
6
Overall Study
COMPLETED
5
5
Overall Study
NOT COMPLETED
1
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Variant 12.2 mg Tafamidis Free Acid Tablet ->Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet
Participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet on Day 1 of Period 1, then after a washout of at least 16 days, participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet.
Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet ->Variant 12.2 mg Tafamidis Free Acid Tablet
Participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet on Day 1 of Period 1 ,then after a washout of at least 16 days, participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet.
Overall Study
Withdrawal by Subject
1
0
Overall Study
No longer meets eligibility criteria
0
1

Baseline Characteristics

A Study to Compare Two Tablet Forms of Tafamidis in Healthy Participants

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Variant 12.2 mg Tafamidis Free Acid Tablet->Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet
n=6 Participants
Participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet on Day 1 of Period 1, then after a washout of at least 16 days, participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet.
Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet->Variant 12.2 mg Tafamidis Free Acid Tablet
n=6 Participants
Participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet on Day 1 of Period 1 ,then after a washout of at least 16 days, participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet.
Total
n=12 Participants
Total of all reporting groups
Age, Customized
< 18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Customized
18-44 years
4 Participants
n=5 Participants
3 Participants
n=7 Participants
7 Participants
n=5 Participants
Age, Customized
45-64 yerars
2 Participants
n=5 Participants
3 Participants
n=7 Participants
5 Participants
n=5 Participants
Age, Customized
>= 65 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Female
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
6 Participants
n=7 Participants
12 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · White
5 Participants
n=5 Participants
5 Participants
n=7 Participants
10 Participants
n=5 Participants
Race/Ethnicity, Customized
Race · Black or African American
1 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Days 1 (Pre-dose,0.5,1,2,3,4,6,8,12 hours post dose),2,3,4,5,6,7 and 8 in both Periods 1 and 2.

Population: The PK parameter population was defined as all participants who received at least 1 dose of tafamidis and who had at least 1 of the PK parameters of interest calculated.

The AUCinf was determined by AUClast+ (Clast\*/kel), where Clast\* is the predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis; kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.

Outcome measures

Outcome measures
Measure
Variant 12.2 mg Tafamidis Free Acid Tablet (Test)
n=11 Participants
Participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet, either in Period 1 or Period 2.
Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet (Reference)
n=12 Participants
Participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet, either in Period 1 or Period 2.
Area Under the Plasma Concentration-time Profile From Time Zero Extrapolated to Infinite Time (AUCinf) of Tafamidis (Both Variant 12.2 mg Tafamidis Free Acid Tablet and Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet)
58630 hour(h)*ng/mL
Geometric Coefficient of Variation 21
57060 hour(h)*ng/mL
Geometric Coefficient of Variation 25

PRIMARY outcome

Timeframe: Days 1 (Pre-dose,0.5,1,2,3,4,6,8,12 hours post dose),2,3,4,5,6,7 and 8 in both Periods 1 and 2.

Population: The PK concentration population was defined as all participants who receive dat least 1 dose of tafamidis and who had at least 1 measurable concentration of tafamidis.

Cmax was observed directly from data.

Outcome measures

Outcome measures
Measure
Variant 12.2 mg Tafamidis Free Acid Tablet (Test)
n=11 Participants
Participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet, either in Period 1 or Period 2.
Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet (Reference)
n=12 Participants
Participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet, either in Period 1 or Period 2.
Maximum Plasma Concentration (Cmax) of Tafamidis (Both Variant 12.2 mg Tafamidis Free Acid Tablet and Proposed Commercial 12.2 mg Tafamidis Free Acid Tablet)
875.2 ng/mL
Geometric Coefficient of Variation 22
926.5 ng/mL
Geometric Coefficient of Variation 22

Adverse Events

Variant 12.2 mg Tafamidis Free Acid Tablet (Test))

Serious events: 0 serious events
Other events: 6 other events
Deaths: 0 deaths

Commercial 12.2 mg Tafamidis Free Acid Tablet (Reference)

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Variant 12.2 mg Tafamidis Free Acid Tablet (Test))
n=11 participants at risk
Participants received 1 dose of Variant 12.2 mg Tafamidis free acid tablet, either in Period 1 or Period 2.
Commercial 12.2 mg Tafamidis Free Acid Tablet (Reference)
n=12 participants at risk
Participants received 1 dose of Proposed commercial 12.2 mg tafamidis free acid tablet, either in Period 1 or Period 2.
Gastrointestinal disorders
Diarrhoea
9.1%
1/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
0.00%
0/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
General disorders
Influenza like illness
9.1%
1/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
0.00%
0/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
General disorders
Vessel puncture site haematoma
0.00%
0/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
8.3%
1/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
Injury, poisoning and procedural complications
Wound haemorrhage
9.1%
1/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
0.00%
0/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
Musculoskeletal and connective tissue disorders
Back pain
18.2%
2/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
0.00%
0/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
Nervous system disorders
Headache
9.1%
1/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
16.7%
2/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
Respiratory, thoracic and mediastinal disorders
Cough
9.1%
1/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
8.3%
1/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
Skin and subcutaneous tissue disorders
Acne
0.00%
0/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
8.3%
1/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
Skin and subcutaneous tissue disorders
Dry skin
18.2%
2/11 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).
0.00%
0/12 • From informed consent through and including a minimum of 28 calendar days after last administration of study drug, up to 35 days.
Both non-serious adverse events (NSAEs) and serious adverse events(SAEs) were recorded on the case report form (CRF).

Additional Information

Pfizer ClinicalTrials.gov Call Center

Pfizer Inc.

Phone: 1-800-718-1021

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place