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rhPTH

Phase 1

Hypoparathyroidism | Small molecule | Endocrine |Takeda Pharmaceutical Company Limited|Trials Updated: Jun 8, 2021

rhPTH target and mechanism

ModalitySmall molecule

Also known as rhPTH(1-84)

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials2
Total Enrollment58

FDA Designations

No designations recorded

rhPTH clinical trials

rhPTH · 2 trials · 1 indication

Phase 1 2
NCT03150108Study of rhPTH(1-84) in Japanese Healthy Subjects Compared With Matched Caucasian Healthy Adult SubjectsHypoparathyroidism
COMPLETED24 Analytics
NCT02781844Study to Assess the Blood Concentrations and Actions of Recombinant Human Parathyroid Hormone (rhPTH [1-84]) When Given Once and Twice Daily to Participants With HypoparathyroidismHypoparathyroidism
COMPLETED34 Analytics
PHASE1COMPLETED
Study of rhPTH(1-84) in Japanese Healthy Subjects Compared With Matched Caucasian Healthy Adult Subjects
HypoparathyroidismUnlock trial analytics
PHASE1COMPLETED
Study to Assess the Blood Concentrations and Actions of Recombinant Human Parathyroid Hormone (rhPTH [1-84]) When Given Once and Twice Daily to Participants With Hypoparathyroidism
HypoparathyroidismUnlock trial analytics

Study Endpoints

Primary Endpoints

Baseline-adjusted Cmax of PTH(1-84)
30 and 90 minutes (min) Pre-dose, 10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 hours (h) Post-dose

Baseline-adjusted maximum observed drug concentration (Cmax) of PTH(1-84) in plasma was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline-adjusted Tmax of PTH(1-84)
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted time to reach maximum observed drug concentration (Tmax) of PTH(1-84) in plasma was reported.

Baseline-adjusted AUC(Last) of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted area under the curve from the time of dosing to the last measurable concentration (AUC(last)) of PTH(1-84) was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline-adjusted AUC(0-8) of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted area under the concentration versus time curve from the time of dosing to 8 hours post dose (AUC(0-8)) of PTH(1-84) was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline-adjusted AUC(0-inf) of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted area under the concentration versus time curve extrapolated to infinity (AUC(0-inf)) of PTH(1-84) was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline- Adjusted % of AUC(0-Inf) Extra of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted % of AUC extrapolated from the last measurable concentration to infinity over (AUC(0-Inf)) of PTH(1-84) in plasma was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline-adjusted Lambda_z of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted Lambda z associated with the terminal (log-linear) portion of the curve for PTH(1-84) in plasma was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline-adjusted t1/2 of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted Terminal Half-life (t1/2) of PTH(1-84) in plasma was reported.

Baseline-adjusted CL/F of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted apparent clearance (CL/F) of PTH(1-84) in plasma was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Baseline-adjusted Vdz/F of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose

Baseline-adjusted apparent volume of distribution (Vdz/F) of PTH(1-84) in plasma was reported. The dispersion measure Geometric Coefficient of Variation was reported in percent (%).

Time of Maximum Observed Concentration (Cmax) During a Dosing Interval (Tmax) of Baseline Adjusted rhPTH(1-84)
QD: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12,16 and 24 hours post-dose ; BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24,28 and 36 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. Tmax of baseline adjusted rhPTH(1-84) was reported. Here the number of participants analyzed signifies participants who were evaluable for this outcome measure.

Maximum Plasma Concentration (Cmax) of Baseline Adjusted rhPTH(1-84)
QD: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12,16 and 24 hours post-dose; BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24,28 and 36 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. Cmax of baseline adjusted rhPTH(1-84) was reported.

Area Under the Curve From the Time of Dosing to the Last Measurable Concentration (AUClast) of Baseline Adjusted rhPTH(1-84)
QD: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12,16 and 24 hours post-dose; BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24,28 and 36 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. AUClast of baseline adjsuted plasma rhPTH(1-84) was reported.

Area Under the Curve Extrapolated to Infinity (AUCinf) of Baseline Adjusted rhPTH(1-84)
QD: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12,16 and 24 hours post-dose; BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24,28 and 36 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. AUCinf of baseline adjusted rhPTH(1-84) was reported.

Area Under the Concentration Curve From Time Zero to 24 Hours Post the First Dose (AUC0-24) of Baseline Adjusted rhPTH(1-84)
QD: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12,16 and 24 hours post-dose; BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. AUC0-24 of baseline adjusted rhPTH(1-84) was reported.

Area Under the Concentration Curve From Time Zero to 12 Hours Post the First Dose (AUC0-12) of Baseline Adjusted rhPTH(1-84)
BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. AUC0-12 of baseline adjusted rhPTH(1-84) was reported. AUC(0-12) was planned, analyzed and reported only in participants who received BID treatment ( Treatment A, Treatment C, Treatment D, Treatment F).

Area Under the Concentration Curve From Time of the Second Dose to 12 Hours Post the Second Dose (AUC12-24) of Baseline Adjusted rhPTH(1-84)
BID: 12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. AUC12-24 of baseline adjusted rhPTH(1-84) was reported. AUC(12-24) was planned, analyzed and reported only in participants who received BID treatment ( Treatment A, Treatment C, Treatment D, Treatment F).

Terminal Half-Life (t1/2) of Baseline Adjusted rhPTH(1-84)
QD: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12,16 and 24 hours post-dose; BID: Pre-dose,10,20,30 minutes,1,1.5,2,4,8,12 hours,12 hour 10 minutes,12 hour 20 minutes,12 hour 30 minutes,13 hours, 13 hour 30 minutes,14,16,20,22,24,28 and 36 hours post-dose

Baseline-adjusted rhPTH(1-84) concentrations (participant- and period-specific) were calculated by subtracting baseline endogenous PTH from the raw PTH concentrations. The baseline was defined as premorning-dose endogenous rhPTH(1-84) level on Day 1 for each treatment period. T1/2 of baseline adjusted rhPTH(1-84) was reported.

Area Under the Concentration-Time Curve That is Above the Baseline, From Time 0 to 24 Hours (AUCabove) of Baseline-Adjusted Serum Calcium Concentrations on Day -1
Day -1

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. AUCabove of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day -1 was reported. Here the number of participants analyzed signifies participants who were evaluable for this outcome measure.

Area Under the Concentration-Time Curve That is Below the Baseline, From Time 0 to 24 Hours (AUCbelow) of Baseline-Adjusted Serum Calcium Concentrations on Day -1
Day -1

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. AUCbelow of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day -1 was reported.

Time to Maximum Effect (TEmax) of Baseline-Adjusted Serum Calcium Concentrations on Day -1
Day -1

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. TEmax of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day -1 were reported.

Maximum Effect (Emax) of Baseline-Adjusted Serum Calcium Concentrations on Day -1
Day -1

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. Emax of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day -1 were reported.

Area Under the Concentration-Time Curve That is Above the Baseline, From Time 0 to 24 Hours (AUCabove) of Baseline-Adjusted Serum Calcium Concentrations on Day 1/Day 2
Day1- QD: Pre-dose up to 24 hours post dose, Day2- BID: Pre-dose up to 36 hours post dose

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. AUCabove of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day 1/Day 2 were reported.

Area Under the Concentration-Time Curve That is Below the Baseline, From Time 0 to 24 Hours (AUCbelow) of Baseline-Adjusted Serum Calcium Concentrations on Day 1/Day 2
Day1- QD: Pre-dose up to 24 hours post dose, Day2- BID: Pre-dose up to 36 hours post dose

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. AUCbelow of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day 1/Day 2 was reported.

Time to Maximum Effect (TEmax) of Baseline-Adjusted Serum Calcium Concentrations on Day 1/Day 2
Day1- QD: Pre-dose up to 24 hours post dose, Day2- BID: Pre-dose up to 36 hours post dose

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. TEmax of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day 1/Day 2 were reported.

Maximum Effect (Emax) of Baseline-Adjusted Serum Calcium Concentrations on Day 1/Day 2
Day1- QD: Pre-dose up to 24 hours post dose, Day2- BID: Pre-dose up to 36 hours post dose

Baseline-adjusted concentrations calculated by subtracting the appropriate baseline values from the raw concentrations at each time point. Emax of baseline-adjusted serum calcium (albumin-corrected) and total calcium (calcium \[uncorrected\]) concentrations on Day 1/Day 2 were reported.

Total Amount of Urinary Calcium Excretion to Total Relative Amount of Creatinine Over 24 Hours by Day -1
Day -1

Total amount of urinary calcium excretion to total relative amount of creatinine over 24 hours by Day -1 was reported.

Total Amount of Urinary Calcium Excretion to Total Relative Amount of Creatinine Over 24 Hours by Day 1/ Day 2
Day 1- QD: Pre-dose up to 24 hours post dose, Day 2- BID: Pre-dose up to 24 hours post dose

Total amount of urinary calcium excretion to total relative amount of creatinine over 24 hours by Day 1/ Day 2 was reported.

Total Urinary Excretion of Calcium Over 24 Hours by Day -1
Day -1

Total urinary excretion of calcium over 24 Hours by Day -1 was reported.

Total Urinary Excretion of Calcium Over 24 Hours by Day 1/ Day 2
Day 1- QD: Pre-dose up to 24 hours post dose, Day 2- BID: Pre-dose up to 24 hours post dose

Total urinary excretion of calcium over 24 hours by Day1/Day 2 was reported.

Secondary Endpoints

Original Cmax of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose
Original Tmax of PTH(1-84)
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose
Original AUClast of PTH(1-84) in Plasma
30 and 90 min Pre-dose,10, 20, 30, 45 min, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 16 and 24 h Post-dose
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Non-Hispanic CaucasiansEXPERIMENTALSubjects will receive single dose of 100 microgram (mcg) rhPTH(1-84) subcutaneous (SC) injection on Day 1.
Participants of Japanese DescentEXPERIMENTALSubjects will receive single dose of 100 mcg rhPTH(1-84) SC injection on Day 1; On days 4 and 7, either 25 mcg or 50 mcg SC injection. A washout period of 73 hours will be maintained between each single doses (100 mcg, 50 mcg and 25 mcg) in a cross-over fashion.
A/B or B/AEXPERIMENTALParticipants will be randomized to either receive 25 microgram (mcg) rhPTH(1-84) twice daily with no calcium for treatment period 1 and 100mcg rhPTH(1-84) once daily with no calcium for treatment period 2; or 100mcg rhPTH(1-84) once daily with no calcium for treatment period 1 and 25mcg rhPTH(1-84) BID with no calcium for treatment period 2
C/B or B/CEXPERIMENTALParticipants will be randomized to either receive 50mcg rhPTH(1-84) twice daily with no calcium for treatment period 1 and 100mcg rhPTH(1-84) once daily with no calcium for treatment period 2; or 100mcg rhPTH(1-84) once daily with no calcium for treatment period 1 and 50mcg rhPTH(1-84) twice daily with no calcium for treatment period 2
D/E or E/DEXPERIMENTALParticipants will be randomized to either receive 25mcg rhPTH(1-84) twice daily with calcium for treatment period 1 and 100mcg rhPTH(1-84) once daily with calcium for treatment period 2; or 100mcg rhPTH(1-84) once daily with calcium for treatment period 1 and 25mcg rhPTH(1-84) twice daily with calcium for treatment period 2
F/E or E/FEXPERIMENTALParticipants will be randomized to either receive 50mcg rhPTH(1-84) twice daily with calcium for treatment period 1 and 100mcg rhPTH(1-84) once daily with calcium for treatment period 2; or 100mcg rhPTH(1-84) once daily with calcium for treatment period 1 and 50mcg rhPTH(1-84) twice daily with calcium for treatment period 2

Interventions

NameTypeDescription
rhPTH(1-84)DRUG25 mcg rhPTH(1-84) SC injection
25mcg rhPTH(1-84)DRUGParticipants will receive rhPTH(1-84) as twice-daily regimen (12 hours apart) of two 25mcg doses without calcium in cohort 1 and with calcium in cohort 3.
50mcg rhPTH(1-84)DRUGParticipants will receive rhPTH(1-84) as twice daily regimen (12 hours apart) of two 50mcg doses without calcium in cohort 2 and with calcium in cohort 4
100mcg rhPTH(1-84)DRUGParticipants will receive rhPTH(1-84) as once-daily regimen of one 100 mcg dose without calcium in cohort 1 and 2 and with calcium in cohort 3 and 4 in the morning.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Ability to voluntarily provide written, signed, and dated informed consent as applicable to participate in the study. * An understanding, ability, and willingness to fully comply with study procedures and restrictions. * Age 18-65 inclusive at the time of consent. The date of ...

Countries:United StatesCanadaDenmarkHungary
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Competitive Landscape -Hypoparathyroidism 9 trials

Frequently asked questions about rhPTH

What is rhPTH?

rhPTH is a recombinant human parathyroid hormone developed by Takeda Pharmaceutical Company Limited (TAK) for hypoparathyroidism, an endocrine condition. It is also known as rhPTH(1-84) or 25mcg rhPTH(1-84). The program is in Phase 1 clinical development, with two completed trials enrolling 58 participants total.

What is rhPTH used for in hypoparathyroidism?

rhPTH is being developed for hypoparathyroidism, a condition in which parathyroid hormone levels are insufficient. Both completed Phase 1 trials enrolled participants with hypoparathyroidism or healthy volunteers to assess the drug's blood concentrations and actions when given once and twice daily.

Who makes rhPTH?

Takeda Pharmaceutical Company Limited, which trades under the ticker TAK, is the developer of rhPTH. The company conducted the Phase 1 clinical program evaluating rhPTH(1-84) in hypoparathyroidism.

What phase is rhPTH in?

rhPTH is in Phase 1 clinical development. Two Phase 1 trials have been completed, and no active trials are currently listed. The program has not been approved by the FDA and remains investigational.

What clinical trials is rhPTH in?

rhPTH has been studied in two completed Phase 1 trials: NCT03150108, which compared rhPTH(1-84) in Japanese and matched Caucasian healthy subjects, and NCT02781844, which assessed blood concentrations and actions of rhPTH(1-84) given once and twice daily to participants with hypoparathyroidism.

Is rhPTH the same as rhPTH(1-84)?

Yes, rhPTH is also known as rhPTH(1-84) and 25mcg rhPTH(1-84). These names refer to the same recombinant human parathyroid hormone developed by Takeda for hypoparathyroidism.