A Phase 2 interventional study of PER977 and Placebo in Anticoagulation Reversal, sponsored by Perosphere Pharmaceuticals Inc, a wholly owned subsidiary of AMAG Pharmaceuticals, Inc.. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-05-21.
Sponsored by Perosphere Pharmaceuticals Inc, a wholly owned subsidiary of AMAG Pharmaceuticals, Inc. (part of Azurity Pharmaceuticals) · Phase 2, Interventional, and Other
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This study will evaluate the establishment of anticoagulation ("re-anticoagulation") of subjects with edoxaban following reversal by PER977 and will identify a dose regimen of PER977 that reverses the effects of edoxaban for up to 21 hours.
This is a randomized, single-blind, sequential group, ascending PER977 reversal dose study in healthy volunteers. Subjects will be randomized in a 4:1 ratio to receive either PER977 or placebo. All subjects will receive a single dose of edoxaban 60 mg on Days 1-4. On Days 3 and 4, study drug will be administered 3 hours following edoxaban. Beginning with Cohort 2, study drug will be administered only to those subjects with a minimum increase in whole blood clotting time >25% above baseline.
Pharmacokinetic assessment of PER977 and tis metabolite, and edoxaban and its metabolite will be performed. Pharmacodynamic assessment of WBCT and Point of Care prothrombin time will be performed. Safety will be assessed throughout the study.
Perosphere Pharmaceuticals Inc, a wholly owned subsidiary of AMAG Pharmaceuticals, Inc. is the lead sponsor of 11 studies on the registry; none are open to participants now.
First submitted before Perosphere Pharmaceuticals Inc became part of Azurity Pharmaceuticals.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECG (electrocardiogram)
A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
QT and QTc
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Platelets
Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Subjects will receive 60 mg edoxaban in the morning on Days 1-2. On Day 3 and 4, they will receive a single dose of 60 mg edoxaban, followed 3 hours later by a single dose of 25 mg PER977 or placebo (n=10).
Drug: PER977 · Drug: Placebo · Drug: Edoxaban
Subjects will receive 60 mg edoxaban in the morning on Days 1-2. On Day 3 and 4, they will receive a single dose of 60 mg edoxaban, followed 3 hours later by a single dose of 50 mg PER977 or placebo (n=10).
Drug: PER977 · Drug: Placebo · Drug: Edoxaban
Subjects will receive 60 mg edoxaban in the morning on Days 1-2. On Day 3 and 4, they will receive a single dose of 60 mg edoxaban, followed 3 hours later by a single dose of 100 mg PER977 or placebo (n=10).
Drug: PER977 · Drug: Placebo · Drug: Edoxaban
Subjects will receive 60 mg edoxaban in the morning on Days 1-2. On Day 3 and 4, they will receive a single dose of 60 mg edoxaban, followed 3 hours later by a single dose of 300 mg PER977 or placebo (n=10). Study amendments expanded the cohort to include an additional 7 subjects (randomized 1:6 PER977:placebo) and up to an additional 4 placebo and 8 active subjects (ongoing).
Drug: PER977 · Drug: Placebo · Drug: Edoxaban
Subjects will receive 60 mg edoxaban in the morning on Days 1-2. On Day 3 and 4, they will receive a single dose of 60 mg edoxaban, followed 3 hours later by a single dose of 600 mg PER977 or placebo (n=10). A protocol amendment expanded the cohort to include an additional 2 placebo and up to an additional 4 active subject.
Drug: PER977 · Drug: Placebo · Drug: Edoxaban
Whole blood clotting time as a measure of edoxaban anticoagulation reversal by PER977
To evaluate the safety, tolerability and effect on whole blood clotting time of escalating intravenous doses of PER977 (25, 50, 100, 300 mg, and 600 mg) administered after 60 mg edoxaban as a "rescue" medication in healthy volunteers and repeated for a second day to investigate any effects of PER977 on the re-anticoagulation with edoxaban and second reversal with PER977.
Time frame: 5 days
Pharmacokinetic profile of PER977
To assess the maximal concentration, half-life and plasma and urinary clearance of PER977 and its metabolite following intravenous administration
Time frame: 5 days
Pharmacokinetic profile of edoxaban
To evaluate the maximal concentration, half-life, and clearance of edoxaban and its metabolite when administered with PER977
Time frame: 5 days
Safety coagulation measures
To evaluate changes in point of care prothrombin time, d-dimer, prothrombin factors 1 and 2, tissue factor pathway inhibitor, and possibly other biomarkers following escalating intravenous doses of PER977 administered after edoxaban in healthy volunteers
Time frame: 5 days
Safety and tolerability
To determine if adverse events occurred in healthy volunteers who received PER977 after edoxaban
Time frame: 5 days
Analytical measurement range (AMR), reproducibility, and precision of WBCT measurements
To determine to normal range, variability, and reproducibility of WBCT in blood collected from healthy volunteers
Time frame: 5 days
The record gives a start of Mar 2014, a primary completion of Sep 2015 and a completion of Nov 2015. It does not say whether these dates are actual or estimated.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Nov 2017. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: PER977
Perosphere Pharmaceuticals Inc, a wholly owned subsidiary of AMAG Pharmaceuticals, Inc. →