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Griseofulvin

Phase 1

Antifungal Agents | Small molecule | Infectious Disease |GSK plc|Last Updated: Dec 28, 2020

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment36
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04318535Bioequivalence (BE) Study of Test Griseofulvin 500 Milligram (mg) Tablets Versus Reference and Dose Proportionality Study of Test Griseofulvin 250 mg and 500 mg Tablets Under Fed ConditionsPHASE1 COMPLETED 36Jan 13, 2020Feb 6, 2020Dec 28, 20201 India
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Study Endpoints
Primary Endpoints
Maximum Plasma Concentration (Cmax) for Griseofulvin
Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 24, 48, 72 and 96 hours post-dose in each period

Blood samples were collected to measure Cmax at indicated time-points. Pharmacokinetic parameters were measured using standard non-compartmental methods. For Griseofulvin 250 mg (T2), dose-normalized Cmax (observed value multiplied by 2) is reported. Adjusted geometric mean and standard error have been presented for all treatments. Adjusted geometric mean is the antilog (exponential) of the least squares mean of the log-transformed data. Statistical analysis of pharmacokinetic parameters was done using mixed model for evaluation of bioquivalence. Point estimate and 90% confidence interval for the ratio of geometric least square mean of the test Griseofulvin 500 mg (T1) to the reference Griseofulvin 500 mg (R) were calculated for Cmax to assess bioequivalence.

Area Under Plasma Concentration-time Curve (AUC) From Zero Hours to Time of Last Quantifiable Concentration (AUC[0-t]) for Griseofulvin
Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 24, 48, 72 and 96 hours post-dose in each period

Blood samples were collected to measure AUC(0-t) at indicated time-points. Pharmacokinetic parameters were measured using standard non-compartmental methods. For Griseofulvin 250 mg (T2), dose-normalized AUC(0-t) (observed value multiplied by 2) is reported. Adjusted geometric mean and standard error have been presented for all treatments. Adjusted geometric mean is the antilog (exponential) of the least squares mean of the log-transformed data. Statistical analysis of pharmacokinetic parameters was done using mixed model for evaluation of bioquivalence. Point estimate and 90% confidence interval for the ratio of geometric least square mean of the test Griseofulvin 500 mg (T1) to the reference Griseofulvin 500 mg (R) were calculated for AUC(0-t) to assess bioequivalence.

AUC From Time Zero Extrapolated to Infinity (AUC[0-inf]) for Griseofulvin
Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 24, 48, 72 and 96 hours post-dose in each period

Blood samples were collected to measure AUC(0-inf) at indicated time-points. Pharmacokinetic parameters were measured using standard non-compartmental methods. For Griseofulvin 250 mg (T2), dose-normalized AUC(0-inf) (observed value multiplied by 2) is reported. Adjusted geometric mean and standard error have been presented for all treatments. Adjusted geometric mean is the antilog (exponential) of the least squares mean of the log-transformed data. Statistical analysis of pharmacokinetic parameters was done using mixed model for evaluation of bioquivalence. Point estimate and 90% confidence interval for the ratio of geometric least square mean of the test Griseofulvin 500 mg (T1) to the reference Griseofulvin 500 mg (R) were calculated for AUC(0-inf) to assess bioequivalence.

Dose Proportionality of Griseofulvin Using AUC(0-t) Following a Single Dose
Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 24, 48, 72 and 96 hours post-dose in each period

Blood samples were collected at indicated time-points for pharmacokinetic analysis. Pharmacokinetic parameters were measured using standard non-compartmental methods. Dose proportionality was assessed using mixed model. Slope and 90% confidence interval for the slope are presented. For Griseofulvin 250 mg (T2), dose-normalized (observed value multiplied by 2) AUC(0-t) was used during calculation of dose proportionality.

Dose Proportionality of Griseofulvin Using Cmax Following a Single Dose
Pre-dose (within 1 hour prior to dosing) and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 24, 48, 72 and 96 hours post-dose in each period

Blood samples were collected at indicated time-points for pharmacokinetic analysis. Pharmacokinetic parameters were measured using standard non-compartmental methods. Dose proportionality was assessed using mixed model. Slope and 90% confidence interval for the slope are presented. For Griseofulvin 250 mg (T2), dose-normalized (observed value multiplied by 2) Cmax was used during calculation of dose proportionality.

Secondary Endpoints
Number of Participants With Any Serious Adverse Event (SAE) and Any Non-serious Adverse Event (Non-SAE)
Up to Day 22
Number of Participants With Any Abnormality in Vital Signs
Up to Day 22
Number of Participants With Any Abnormality in Hematology Parameters
Up to Day 22
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Participants receiving T1T2REXPERIMENTALParticipants will receive a single oral dose of Griseofulvin T1: 1 x 500 mg Tablet once in Period 1 on Day 1 followed by a washout period of at least 7 days. In Period 2 on Day 8, same participants will receive Griseofulvin T2: 1 x 250 mg Tablet once followed by a washout period of at least 7 days. In Period 3 on Day 15, same participants will receive Griseofulvin R: 1 x 500 mg Tablet once. All the above-mentioned doses will be administered with 240 +- 2 milliliters (mL) of water at ambient temperature under fed condition.
Participants receiving T2RT1EXPERIMENTALParticipants will receive a single oral dose of Griseofulvin T2: 1 x 250 mg Tablet once in Period 1 on Day 1 followed by a washout period of at least 7 days. In Period 2 on Day 8, same participants will receive Griseofulvin R: 1 x 500 mg Tablet once followed by a washout period of at least 7 days. In Period 3 on Day 15, same participants will receive Griseofulvin T1: 1 x 500 mg Tablet once. All the above-mentioned doses will be administered with 240 +- 2 milliliters (mL) of water at ambient temperature under fed condition.
Participants receiving RT1T2EXPERIMENTALParticipants will receive a single oral dose of Griseofulvin R: 1 x 500 mg Tablet once in Period 1 on Day 1 followed by a washout period of at least 7 days. In Period 2 on Day 8, same participants will receive Griseofulvin T1: 1 x 500 mg Tablet once followed by a washout period of at least 7 days. In Period 3 on Day 15, same participants will receive Griseofulvin T2: 1 x 250 mg Tablet once. All the above-mentioned doses will be administered with 240 +- 2 milliliters (mL) of water at ambient temperature under fed condition.
Interventions
NameTypeDescription
Griseofulvin 500 mgDRUGGriseofulvin 500 mg will be administered as an oral tablet once in each treatment period under fed condition.
Griseofulvin 250 mgDRUGGriseofulvin 250 mg will be administered as an oral tablet once in each treatment period under fed condition.
Reference Griseofulvin 500 mgDRUGReference Griseofulvin 500 mg will be administered as an oral tablet once in each treatment period under fed condition.
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Eligibility Criteria
Age Range18 Years — 45 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Participant must be 18 to 45 years of age inclusive, at the time of signing the informed consent. * Participants who are healthy as determined by the investigator or medically qualified designee on a medical evaluation including medical baseline history, physical examination a...

Countries:India
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