Phase 1
Completed N=24
Study of rhPTH(1-84) in Japanese Healthy Subjects Compared With Matched Caucasian Healthy Adult Subjects
Source: ClinicalTrials.gov NCT03150108 ↗Enrolled (actual)
24
Serious AEs
0.0%
Results posted
Jul 2019
Primary outcomePrimary: Baseline-adjusted Cmax of PTH(1-84) — 295.662; 330.820; 175.468; 99.708 Picogram per milliliter (pg/mL)
Summary
The purpose of this study is to compare how rhPTH(1-84) affects the body between healthy adults of Japanese descent and matched, healthy Caucasian adults.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Baseline-adjusted Cmax of PTH(1-84) |
295.662; 330.820; 175.468; 99.708 | — |
| PRIMARY Baseline-adjusted Tmax of PTH(1-84) |
0.415; 1.000; 1.385; 1.240 | — |
| PRIMARY Baseline-adjusted AUC(Last) of PTH(1-84) in Plasma |
1037.63; 1027.81; 602.06; 255.67 | — |
| PRIMARY Baseline-adjusted AUC(0-8) of PTH(1-84) in Plasma |
956.63; 1033.62; 554.23; 248.38 | — |
| PRIMARY Baseline-adjusted AUC(0-inf) of PTH(1-84) in Plasma |
1028.29; 1039.34; 589.25; 249.51 | — |
| PRIMARY Baseline- Adjusted % of AUC(0-Inf) Extra of PTH(1-84) in Plasma |
1.416; 0.932; 1.555; 3.015 | — |
| PRIMARY Baseline-adjusted Lambda_z of PTH(1-84) in Plasma |
0.4496; 0.6672; 0.5714; 0.8277 | — |
| PRIMARY Baseline-adjusted t1/2 of PTH(1-84) in Plasma |
1.390; 1.060; 1.020; 0.950 | — |
| PRIMARY Baseline-adjusted CL/F of PTH(1-84) in Plasma |
97.25; 96.22; 84.84; 100.18 | — |
| PRIMARY Baseline-adjusted Vdz/F of PTH(1-84) in Plasma |
216.30; 144.18; 148.50; 121.02 | — |
| SECONDARY Original Cmax of PTH(1-84) in Plasma |
324.43; 365.52; 206.05; 129.74 | — |
| SECONDARY Original Tmax of PTH(1-84) |
0.415; 1.000; 1.385; 1.240 | — |
| SECONDARY Original AUClast of PTH(1-84) in Plasma |
1685.62; 1823.70; 1300.09; 959.49 | — |
| SECONDARY AUClast of Albumin-corrected Calcium, Serum Total Calcium and Phosphate Levels After Intake of PTH(1-84) |
52.94; 53.22; 52.94; 52.61; 54.21; 54.62 | — |
| SECONDARY TEmax After Intake of PTH(1-84) on Albumin-corrected Calcium, Serum Total Calcium and Serum Phosphate Levels |
8.000; 8.000; 4.000; 4.000; 8.000; 8.000 | — |
| SECONDARY Emax of PTH(1-84) on Albumin-corrected Calcium, Serum Total Calcium and Serum Phosphate Levels |
2.287; 2.284; 2.283; 2.282; 2.359; 2.347 | — |
| SECONDARY Number of Participants With Treatment-emergent Adverse Events (TEAEs) |
4; 6; 1; 3 | — |
| SECONDARY Number of Participants With Clinically Significant Changes in Clinical Laboratory Tests Reported as Treatment-emergent Adverse Events (TEAEs) |
0; 0; 0; 0 | — |
| SECONDARY Number of Participants With Clinically Significant Changes in Vital Signs Reported as Treatment-emergent Adverse Events (TEAEs) |
0; 0; 0; 0 | — |
| SECONDARY Number of Participants With Clinically Significant Changes in Electrocardiogram (ECG) Results Reported as Treatment-emergent Adverse Events (TEAEs) |
0; 0; 0; 0 | — |
| SECONDARY Number of Participants Who Reported Positive to Anti-Parathyroid Hormone Antibodies |
0; 0; 0; 0 | — |
Eligibility Criteria
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 signature of the informed consent is defined as the beginning of the screening period. This inclusion criterion will only be assessed at the first screening visit.
- Subjects must be either:
- A subject of Japanese descent born in Japan, who has resided outside of Japan for no longer than 5 years and is of Japanese parentage, defined as having 2 Japanese parents, and 4 Japanese grandparents, all born in Japan.
- A non-hispanic, Caucasian subject who has 2 non-hispanic, Caucasian parents and 4 non-hispanic, Caucasian grandparents.
- Male or nonpregnant, nonlactating female who agrees to comply with any applicable contraceptive requirements of the protocol or females of nonchildbearing potential.
- Considered "healthy" by the investigator. Healthy status is defined by absence of evidence of any active or chronic disease following a detailed medical and surgical history, a complete physical examination including vital signs, 12-lead electrocardiogram (ECG), hematology, blood chemistry, and urinalysis.
- Body mass index between 18.5 and 28 kilogram per square meter (kg/m^2), inclusive, with a body weight greater than or equal to (>=) 45 kg (99 pounds [lbs]). This inclusion criterion will only be assessed at the first screening visit.
- Willing and able to consume standardized meals during the confinement period of the study. All subjects will be required to consume the identical meals on study days when serial pharmacokinetic (PK) and pharmacodynamic (PD) blood samples are collected.
- A clinical safety laboratory parameter of hemoglobin greater than (>) 11.7 gram per deciliter (g/dl) (females) or 13.1 g/dl (males) and less than ( 39 millimeter of mercury (mmHg) or 89 mmHg or 450 milliseconds (msec) at screening. If QTcF exceeds 450 msec, the ECG should be repeated 2 more times and the average of the 3 QTcF values should be used to determine the subject's eligibility.
- Positive screen for drugs of abuse at screening or drugs of abuse or alcohol on Day -1.
- Male subjects who consume more than 21 units of alcohol per week or 3 units per day. Female subjects who consume more than 14 units of alcohol per week or 2 units per day. (1 alcohol unit=1 beer or 1 wine (5 ounce (oz) per 150 milliliter (mL)) or 1 liquor (1.5oz/40 mL) or 0.75 oz alcohol).
- Positive human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody screen.
- Use of tobacco in any form (eg, smoking or chewing) or other nicotine-containing products in any form (eg, gum, patch). Ex-users must report that they have stopped using tobacco for at least 30 days prior to receiving the first dose of investigational product.
- Routine consumption of more than 2 units of caffeine per day or subjects who experience caffeine withdrawal headaches. (1 caffeine unit is contained in the following items: one 6 oz (180 mL) cup of coffee, two 12 oz (360 mL) cans of cola, one 12 oz cup of tea, three 1 oz (85 g) chocolate bars. Decaffeinated coffee, tea, or cola are not considered to contain caffeine).
- Prior screen failure, randomization, participation, or enrollment in this study or prior exposure to any exogenous PTH, PTH fragments or analogs.
- Current use of any medication (including over-the-counter, herbal, or homeopathic preparations; with the exception of hormonal replacement therapy or hormonal contraceptives and occasional use of ibuprofen and acetaminophen). Current use is defined as use within 14 days of the first dose of investigational product.
- History of abnormalities of calcium homeostasis including hyperparathyroidism, hypoparathyroidism, hyperthyroidism, osteoporosis, Cushing's syndrome, hypercalcemia, hypocalcemia, or any
Data sourced from ClinicalTrials.gov (NCT03150108). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.