A Phase 1 interventional study of ALXN1840 in Healthy, sponsored by Alexion Pharmaceuticals, Inc.. Completed at 1 site in United Kingdom. Open to participants aged 18 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-08-19.
Sponsored by Alexion Pharmaceuticals, Inc. · Phase 1, Interventional, and Treatment
The study will assess the change from baseline in mean daily copper balance in healthy participants with repeat-dose administrations of ALXN1840 over 2 weeks.
This study will also characterize the steady state absorption, distribution, metabolism, and excretion (mass balance) of total molybdenum, which is a surrogate measure of ALXN1840 disposition.
Safety will be monitored throughout the study.
Alexion Pharmaceuticals, Inc. is the lead sponsor of 249 studies on the registry; 25 are open to participants now.
Of its 98 completed or terminated interventional studies of FDA-regulated products, 70 (71%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Participants will be administered repeat doses of ALXN1840 30 milligrams (mg) for 15 days.
Drug: ALXN1840
Administered orally as tablets.
Also known as: formerly WTX101
Change From Baseline in Mean Daily Copper Balance Over 2 Weeks of Repeated Daily ALXN1840 Dosing (Over Days 4 to 15)
Copper balance was defined as the difference in copper input and copper output. A negative copper balance indicated greater copper output than copper intake. Copper input was defined as the sum of all copper input as measured in all food and fluids over the specified period. Copper output was defined as the sum of all copper output as measured in urine and feces over the specified collection period. Baseline was defined as the average of the nonmissing values on or before first study drug administration from Day -4 to Day -1.
Time frame: Baseline, Days 4 to 15
Mean Daily Copper Balance Over Two Weeks of Repeated ALXN1840 Dosing
Copper balance was defined by the difference in copper input and copper output. A negative copper balance indicated greater copper output than copper intake. Copper input was defined as the sum of all copper input as measured in all food and fluids over the specified period. Copper output was defined as the sum of all copper output as measured in urine and feces over the specified collection period.
Time frame: Day 4 through Day 15
Change From Baseline in Mean Daily Molybdenum Balance at Steady State (Over Days 12 to 15)
Molybdenum mass balance was defined as the difference in molybdenum input and molybdenum output. A negative molybdenum balance indicated greater molybdenum output than molybdenum intake. Molybdenum input was defined as the sum of all molybdenum input as measured in all food and fluids over the specified period. Molybdenum output was defined as the sum of all molybdenum output as measured in urine and feces over the specified collection period. Baseline was defined as the average of the nonmissing values on or before first study drug administration from Day -4 to Day -1.
Time frame: Baseline, Days 12 to 15
Change From Baseline in Total Molybdenum Excretion in Urine and Feces Averaged Over 2 Weeks of Dosing (Days 4 to 15)
Molybdenum mass balance was defined as the difference in molybdenum input and molybdenum output. A negative molybdenum balance indicated greater molybdenum output than molybdenum intake. Molybdenum input was defined as the sum of all molybdenum input as measured in all food and fluids over the specified period. Molybdenum output was defined as the sum of all molybdenum output as measured in urine and feces over the specified collection period. Baseline was defined as the average of the nonmissing values on or before first study drug administration from Day -4 to Day -1. Molybdenum excretion for the Day 4 through Day 15 period included data averaged from Day 4 through Day 15.
Time frame: Baseline, Days 4 to 15
Mean Daily Molybdenum Balance Throughout the ALXN1840 Treatment Period (Day 1 Through Day 15)
Molybdenum mass balance was defined as the difference in molybdenum input and molybdenum output. A negative molybdenum balance indicated greater molybdenum output than molybdenum intake. Molybdenum input was defined as the sum of all molybdenum input as measured in all food and fluids over the specified period. Molybdenum output was defined as the sum of all molybdenum output as measured in urine and feces over the specified collection period.
Time frame: Day 1 through Day 15
Copper Quantified in Food, Drink, Feces, and Urine Averaged Over 2 Weeks of Dosing
Copper balance for the Day 4 through Day 15 period included data averaged from Day 4 through Day 15.
Time frame: Days 4 to 15
Copper Quantified in Food, Drink, Feces, and Urine From Day 1 Through Day 30
Copper balance for the Day 1 through Day 30 period included data averaged from Day 1 through Day 30.
Time frame: Day 1 through Day 30
Plasma Total Copper Concentration and Labile Bound Copper (LBC) Concentration
Time frame: Day 15 (predose and 24 hours postdose)
Molybdenum Quantified in ALXN1840 Doses Given and in Food, Drink, Feces, And Urine
Molybdenum balance for the Day 1 through Day 30 period included data averaged from Day 1 through Day 30.
Time frame: Day 1 through Day 30
Maximum Observed Plasma Concentration (Cmax) of Total Molybdenum and Plasma Ultrafiltrate (PUF) Molybdenum
Time frame: Predose (within 1 hour prior to dosing) through 24 hours postdose on Day 1 and Day 15
Area Under the Plasma Concentration Versus Time Curve Over the Dosing Interval (AUCtau) of Total Molybdenum and PUF Molybdenum
Time frame: Predose (within 1 hour prior to dosing) through 24 hours postdose on Day 1 and Day 15
Observed Concentration at the End of the Dosing Interval (Ctau) of Total Molybdenum and PUF Molybdenum
Time frame: Predose (within 1 hour prior to dosing) through 24 hours postdose on Day 1 and Day 15
| Milestone | Group 1: ALXN1840 | Group 2: ALXN1840 |
|---|---|---|
| Started | 6 | 11 |
| Received at least 1 dose of study drug | 6 | 11 |
| Completed | 6 | 9 |
| Not completed | 0 | 2 |
| Withdrew: Adverse event | 0 | 2 |
Copper balance was defined as the difference in copper input and copper output. A negative copper balance indicated greater copper output than copper intake. Copper input was defined as the sum of all copper input as measured in all food and fluids over the specified period. Copper output was defined as the sum of all copper output as measured in urine and feces over the specified collection period. Baseline was defined as the average of the nonmissing values on or before first study drug administration from Day -4 to Day -1.
| mg/day | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Change From Baseline in Mean Daily Copper Balance Over 2 Weeks of Repeated Daily ALXN1840 Dosing (Over Days 4 to 15) | -0.0749 ± 0.37419 | 0.6901 ± 0.48176 | 0.4201 ± 0.57518 |
Copper balance was defined by the difference in copper input and copper output. A negative copper balance indicated greater copper output than copper intake. Copper input was defined as the sum of all copper input as measured in all food and fluids over the specified period. Copper output was defined as the sum of all copper output as measured in urine and feces over the specified collection period.
| mg/day | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Mean Daily Copper Balance Over Two Weeks of Repeated ALXN1840 Dosing | 0.7789 ± 0.20297 | 1.0218 ± 0.21279 | 0.9361 ± 0.23558 |
Molybdenum mass balance was defined as the difference in molybdenum input and molybdenum output. A negative molybdenum balance indicated greater molybdenum output than molybdenum intake. Molybdenum input was defined as the sum of all molybdenum input as measured in all food and fluids over the specified period. Molybdenum output was defined as the sum of all molybdenum output as measured in urine and feces over the specified collection period. Baseline was defined as the average of the nonmissing values on or before first study drug administration from Day -4 to Day -1.
| mg/day | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Change From Baseline in Mean Daily Molybdenum Balance at Steady State (Over Days 12 to 15) | 1.7750 ± 0.98161 | 0.6189 ± 1.24337 | 1.0269 ± 1.26161 |
Molybdenum mass balance was defined as the difference in molybdenum input and molybdenum output. A negative molybdenum balance indicated greater molybdenum output than molybdenum intake. Molybdenum input was defined as the sum of all molybdenum input as measured in all food and fluids over the specified period. Molybdenum output was defined as the sum of all molybdenum output as measured in urine and feces over the specified collection period. Baseline was defined as the average of the nonmissing values on or before first study drug administration from Day -4 to Day -1. Molybdenum excretion for the Day 4 through Day 15 period included data averaged from Day 4 through Day 15.
| mg | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Urine | 2.6210 ± 0.68681 | 2.5957 ± 0.39688 | 2.6046 ± 0.49600 |
| Feces | 2.0247 ± 0.64199 | 1.9586 ± 0.32854 | 1.9819 ± 0.44421 |
Molybdenum mass balance was defined as the difference in molybdenum input and molybdenum output. A negative molybdenum balance indicated greater molybdenum output than molybdenum intake. Molybdenum input was defined as the sum of all molybdenum input as measured in all food and fluids over the specified period. Molybdenum output was defined as the sum of all molybdenum output as measured in urine and feces over the specified collection period.
| mg/day | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Mean Daily Molybdenum Balance Throughout the ALXN1840 Treatment Period (Day 1 Through Day 15) | 2.5560 ± 0.73042 | 2.2861 ± 0.35654 | 2.3813 ± 0.51367 |
Copper balance for the Day 4 through Day 15 period included data averaged from Day 4 through Day 15.
| mg | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Copper Quantified in Food | 1.5039 ± 0.10025 | 1.7178 ± 0.12247 | 1.6423 ± 0.15366 |
| Copper Quantified in Drink | 0.0270 ± 0.00120 | 0.0108 ± 0.00194 | 0.0165 ± 0.00816 |
| Copper Quantified in Feces | 0.7373 ± 0.23986 | 0.6895 ± 0.17102 | 0.7064 ± 0.19187 |
| Copper Quantified in Urine | 0.0147 ± 0.01102 | 0.0173 ± 0.00780 | 0.0164 ± 0.00881 |
Copper balance for the Day 1 through Day 30 period included data averaged from Day 1 through Day 30.
| mg | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Copper Quantified in Food | 1.6117 ± 0.12736 | 1.6673 ± 0.12779 | 1.6476 ± 0.12659 |
| Copper Quantified in Drink | 0.0252 ± 0.00124 | 0.0124 ± 0.00212 | 0.0169 ± 0.00658 |
| Copper Quantified in Feces | 0.7017 ± 0.19009 | 0.6962 ± 0.13385 | 0.6982 ± 0.14999 |
| Copper Quantified in Urine | 0.0192 ± 0.01107 | 0.0209 ± 0.00655 | 0.0203 ± 0.00811 |
| micromoles (μmol)/liter (L) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Total Copper Concentration at Day 15 (predose) | 12.58931 ± 1.636640 | 13.87256 ± 1.627496 | 13.41964 ± 1.700617 |
| Total Copper Concentration at Day 15 (24 hours postdose) | 12.56570 ± 1.342502 | 14.49816 ± 1.548441 | 13.77349 ± 1.724230 |
| LBC Concentration at Day 15 (predose) | 0.93213 ± 0.262655 | 0.82360 ± 0.160887 | 0.86190 ± 0.201482 |
| LBC Concentration at Day 15 (24 hours postdose) | 1.04386 ± 0.233526 | 0.90612 ± 0.264791 | 0.95777 ± 0.254932 |
Molybdenum balance for the Day 1 through Day 30 period included data averaged from Day 1 through Day 30.
| mg | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Molybdenum Quantified in Food | 0.2618 ± 0.02275 | 0.1414 ± 0.01123 | 0.1839 ± 0.06129 |
| Molybdenum Quantified in Drink | 0.0014 ± 0.00015 | 0.0017 ± 0.00048 | 0.0016 ± 0.00041 |
| Molybdenum Quantified in Feces | 1.0575 ± 0.29359 | 0.9949 ± 0.16082 | 1.0170 ± 0.20988 |
| Molybdenum Quantified in Urine | 1.4016 ± 0.35415 | 1.3848 ± 0.21874 | 1.3907 ± 0.26300 |
| Molybdenum Quantified in ALXN1840 Doses Given | 3.5933 ± 0.02277 | 3.3625 ± 0.28101 | 3.4439 ± 0.24988 |
| nanograms (ng)/mL | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Cmax of Total Molybdenum at Day 1 | 303.000 ± 65.3667 | 291.727 ± 100.7324 | 295.706 ± 87.7950 |
| Cmax of Total Molybdenum at Day 15 | 358.500 ± 53.6945 | 382.333 ± 78.2624 | 372.800 ± 68.3794 |
| Cmax of PUF Molybdenum at Day 1 | 30.445 ± 12.0613 | 27.266 ± 12.9396 | 28.388 ± 12.3515 |
| Cmax of PUF Molybdenum at Day 15 | 93.717 ± 42.9368 | 74.678 ± 36.1617 | 82.293 ± 38.7152 |
| hours*ng/mL | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| AUCtau of Total Molybdenum at Day 1 | 4860.289 ± 1078.263 | 4439.012 ± 1374.869 | 4587.698 ± 1260.082 |
| AUCtau of Total Molybdenum at Day 15 | 6770.905 ± 582.770 | 7496.724 ± 1499.370 | 7206.397 ± 1241.529 |
| AUCtau of PUF Molybdenum at Day 1 | 356.156 ± 133.8174 | 318.123 ± 131.9084 | 331.546 ± 129.6990 |
| AUCtau of PUF Molybdenum at Day 15 | 1035.231 ± 252.0931 | 913.807 ± 379.1750 | 962.376 ± 329.6126 |
| ng/mL | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| Ctau of Total Molybdenum at Day 1 | 143.800 ± 35.5348 | 140.436 ± 53.2088 | 141.624 ± 46.5492 |
| Ctau of Total Molybdenum at Day 15 | 218.833 ± 23.0340 | 242.625 ± 54.5892 | 232.429 ± 44.2488 |
| Ctau of PUF Molybdenum at Day 1 | 4.655 ± 1.1623 | 4.785 ± 1.6602 | 4.739 ± 1.4660 |
| Ctau of PUF Molybdenum at Day 15 | 11.060 ± 1.3785 | 11.141 ± 2.8492 | 11.106 ± 2.2591 |
Collected over Baseline up to Day 43. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Group 1: ALXN1840 | 0/6 (0%) | 0/6 (0%) | 5/6 (83.3%) |
| Group 2: ALXN1840 | 0/11 (0%) | 0/11 (0%) | 9/11 (81.8%) |
| Total (Groups 1 and 2): ALXN1840 | 0/17 (0%) | 0/17 (0%) | 14/17 (82.4%) |
| Event | Group 1: ALXN1840 | Group 2: ALXN1840 | Total (Groups 1 and 2): ALXN1840 |
|---|---|---|---|
| DysmenorrhoeaReproductive system and breast disorders | 2/3 | 0/6 | 2/9 |
| NauseaGastrointestinal disorders | 1/6 | 4/11 | 5/17 |
| Liver function test abnormalInvestigations | 0/6 | 2/11 | 2/17 |
| HeadacheNervous system disorders | 1/6 | 2/11 | 3/17 |
| Abdominal painGastrointestinal disorders | 1/6 | 0/11 | 1/17 |
| FolliculitisInfections and infestations | 1/6 | 0/11 | 1/17 |
| Viral upper respiratory tract infectionInfections and infestations | 1/6 | 0/11 | 1/17 |
| Weight decreasedInvestigations | 1/6 | 0/11 | 1/17 |
| DizzinessNervous system disorders | 1/6 | 0/11 | 1/17 |
| Oropharyngeal painRespiratory, thoracic and mediastinal disorders | 1/6 | 0/11 | 1/17 |
Full analysis set included all participants who received at least 1 dose of ALXN1840.
| Age, Continuous(years) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Mean | 27.0 ± 6.29 | 29.5 ± 5.61 | 28.6 ± 5.80 |
| Sex: Female, Male(Participants) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Female | 3 | 6 | 9 |
| Male | 3 | 5 | 8 |
| Ethnicity (NIH/OMB)(Participants) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Hispanic or Latino | 0 | 1 | 1 |
| Not Hispanic or Latino | 6 | 10 | 16 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 1 | 1 | 2 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 0 | 2 | 2 |
| White | 5 | 8 | 13 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 |
| Mean Daily Copper Balance(milligrams (mg)/day) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Mean | 0.8538 ± 0.48629 | 0.3317 ± 0.44568 | 0.5160 ± 0.51399 |
| Mean Daily Molybdenum Balance(mg/day) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Mean | 0.1286 ± 0.04469 | 0.0133 ± 0.05035 | 0.0540 ± 0.07372 |
| Total Molybdenum Excretion in Feces(mg) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Mean | 0.0586 ± 0.02347 | 0.0724 ± 0.03023 | 0.0675 ± 0.02809 |
| Total Molybdenum Excretion in Urine(mg) | Group 1: ALXN1840 | Group 2: ALXN1840 | Total |
|---|---|---|---|
| Mean | 0.1039 ± 0.02656 | 0.1198 ± 0.03546 | 0.1142 ± 0.03268 |
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Alexion Pharmaceuticals, Inc.