Diabetes Mellitus, Type 1Phase 1NCT02038764
A Study To Assess The Safety Of PF-06342674 In Adults With Type 1 Diabetes
A Phase 1 study testing PF-06342674 Dose A, PF-06342674 Dose B and PF-06342674 Dose C in people with Diabetes Mellitus, Type 1, run by Pfizer at 21 sites in United States.
Trial summary
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and immunogenicity of multiple doses of PF-06342674. Several dose levels will be evaluated. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Diabetes Mellitus, Type 1
- What is being tested?
- PF-06342674 Dose A, PF-06342674 Dose B and PF-06342674 Dose C
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 37 participants
- Where
- 21 sitesUnited States
- Study dates
- 4 Jun 2014to 13 Sep 2016
- Phase
- Phase 1
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Women and men age 18 and older.
- Diagnosis of type 1 diabetes within 2 years of randomization.
- Peak stimulated C-peptide levels ≥ 0.15 ng/mL.
Who cannot join
- Anticipated ongoing use of diabetes medications other than insulin.
- Evidence or history of diabetic complications with significant end-organ damage.
- Episode of severe hypoglycemia within 60 days of randomization.
- Multiple hospitalizations for diabetic ketoacidosis.
Trial locations and contacts
21 sites in 1 country.
21 sites in 1 country
United States21 sites
Atlanta Diabetes Associates
Atlanta, Georgia, 30318
Barbara Davis Center
Aurora, Colorado, 80045
Duchossois Center for Advanced Medicine
Chicago, Illinois, 60637
The University of Chicago Medical Center
Chicago, Illinois, 60637
University of Chicago Clinical Resource Center
Chicago, Illinois, 60637
University of Chicago Medical Center
Chicago, Illinois, 60637
Duke Clinical Research Unit
Durham, North Carolina, 27710
Duke University Health Systems (DUHS) Investigational Drug Services
Durham, North Carolina, 27710
University Of Minnesota Fairview Pharmacy Services
Minneapolis, Minnesota, 55454
University Of Minnesota Medical School
Minneapolis, Minnesota, 55455
Yale School of Medicine
New Haven, Connecticut, 06510
Yale New Haven Hospital - Investigational Drug Services
New Haven, Connecticut, 06511
Yale University School of Medicine
New Haven, Connecticut, 06519
VA San Diego Healthcare System (Drug Shipment)
San Diego, California, 92161
Veterans Administration San Diego Healthcare System
San Diego, California, 92161
University of California, San Francisco
San Francisco, California, 94143
Barnes- Jewish HOSP Att: Kathryn Vehe
St Louis, Missouri, 63110
Washington University - Center for Advanced Medicine
St Louis, Missouri, 63110
Washington University
St Louis, Missouri, 63110
Umass Memorial Medical Center
Worcester, Massachusetts, 01655
University of Massachusetts Medical School
Worcester, Massachusetts, 01655
About this study
Official title: A Phase 1 Study To Evaluate The Safety, Tolerability, Immunogenicity, Pharmacokinetics And Pharmacodynamics Of Multiple Ascending Doses Of Pf-06342674 (rn168) In Adults With Type 1 Diabetes
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and immunogenicity of multiple doses of PF-06342674. Several dose levels will be evaluated.
- Conditions
- Diabetes Mellitus, Type 1
- Being tested
- Placebo, PF-06342674 Dose A, PF-06342674 Dose B, PF-06342674 Dose C, PF-06342674 Dose D
- Keywords
- Phase 1, RN168, Adults, Type 1 Diabetes, T1D
- Medical subject headings
- Diabetes Mellitus, Type 1
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PlaceboDrug
Placebo
PF-06342674 Dose ABiological
Multiple SC Doses
PF-06342674 Dose BBiological
Multiple SC Doses
PF-06342674 Dose CBiological
Multiple SC Doses
PF-06342674 Dose DBiological
Multiple SC Doses
| Study group | Role | What they receive |
|---|---|---|
| Placebo | Placebo comparator | Placebo Receives: Drug: Placebo |
| PF-06342674 | Experimental | Not described Receives: Biological: PF-06342674 Dose A; Biological: PF-06342674 Dose B; Biological: PF-06342674 Dose C; Biological: PF-06342674 Dose D |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Dose Limiting or Intolerable Treatment Related Adverse Events (AEs)
Number of participants with dose limiting or intolerable treatment related adverse events (AEs) was reported. An AE was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage.
Measured: Day 1 through Day 127
Number of Participants With All-Causality Treatment Emergent Adverse Events(TEAEs)
Number of participants with all-causality treatment emergent adverse events were reported. An AE was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event needed not necessarily have a causal relationship with the treatment or usage. TEAEs were those AEs with initial onset or increasing in severity after the first dose of study drug. TEAEs included both serious and non-serious AE
Measured: Day 1 through Day 127
Number of Participants With Treatment-Related TEAEs
Number of participants with treatment-related TEAEs were reported. Treatment-related AE was any untoward medical occurrence attributed to study drug in a participant who received study drug. An AE was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event needed not necessarily have a causal relationship with the treatment or usage. TEAEs were those AEs with initial onset or increasing in severity after the first dose of study drug.
Measured: Day 1 through Day 127
Number of Participants With All-Causality TEAEs Listed by Common Terminology Criteria for Adverse Events (CTCAE) Grade
TEAEs were those AEs with initial onset or increasing in severity after the first dose of study drug. CTCAE version 4.03 was used to grade the severity of TEAEs. Grade 1 referred to mild AEs; Grade 2 referred to moderate AEs; Grade 3 referred to severe AEs; Grade 4 referred to AEs with life-threatening consequences, and urgent intervention was needed to manage them; Grade 5 referred to death related to AE.
Measured: Day 1 through Day 127
Number of Participants With All-Causality Treatment-Emergent Hypoglycemic Adverse Events
Number of participants with all-causality treatment-emergent hypoglycemic adverse events was reported. Any blood glucose values less than(<)55 mg/dL with or without symptoms was reported as adverse events of hypoglycemia.
Measured: Day 1 through Day 127
Number of Participants With All-Causality Treatment-Emergent Hypoglycemic Adverse Events Listed by CTCAE Grade
Any blood glucose values <55 mg/dL with or without symptoms was reported as adverse events of hypoglycemia. CTCAE version 4.03 was used to grade the severity of TEAEs. Grade 1 referred to mild AEs; Grade 2 referred to moderate AEs; Grade 3 referred to severe AEs; Grade 4 referred to AEs with life-threatening consequences, and urgent intervention was needed to manage them; Grade 5 referred to death related to AE.
Measured: Day 1 through Day 127
Number of Participants With Laboratory Test Abnormalities (Without Regard to Baseline Abnormality)
The following laboratory test parameters were evaluated in this study: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, absolute total neutrophils, absolute eosinophils, absolute basophils, absolute monocytes, and absolute lymphocytes),coagulation (partial thromboplastin time, prothrombin, and prothrombin international ratio), liver function(total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, total protein, and albumin), renal function (blood urea nitrogen, creatinine, and uric acid), electrolytes (sodium, potassium, chloride, calcium, and venous bicarbonate), clinical chemistry(glucose, glycosylated, and hemoglobin), and urinalysis (pH, qualitative glucose, qualitative protein, qualitative blood, urobilinogen, qualitative bilirubin, nitrites, leukocyte, esterase and microscopy).
Measured: Day 1 through Day 127
Number of Participants With Vital Signs That Met the Criteria for Potential Clinical Concern(Absolute Values)
Number of participants with vital signs data of absolute values meeting criteria of potential clinical concern. Absolute values were analyzed for systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse rate. Number of participants with vital signs data meeting the following criteria was reported: Criterion A: SBP <90 millimeter of mercury(mmHg); Criterion B: DBP <50 mmHg; Criterion C: pulse rate < 40 beats per minute(BPM); Criterion D: pulse rate >120 BPM
Measured: Day 1 through Day 127
Number of Participants With Vital Signs That Met the Criteria for Potential Clinical Concern(Decreases From Baseline)
The number of participants with vital signs data of maximum decrease from baseline meeting the following criteria was reported: Criterion A: maximum decrease from baseline in systolic BP >= 30 mmHg; Criterion B: maximum decrease from baseline in diastolic BP >=20 mmHg
Measured: Day 1 through Day 127
Number of Participants With Vital Signs That Met the Criteria for Potential Clinical Concern(Increases From Baseline)
The number of participants with vital signs data of maximum increase from baseline meeting the following criteria was reported: Criterion A: maximum increase from baseline in systolic BP >= 30 mmHg; Criterion B: maximum increase from baseline in diastolic BP >= 20 mmHg
Measured: Day 1 through Day 127
Number of Participants With Electrocardiogram(ECG) Data That Met the Criteria for Potential Clinical Concern(Absolute Value)
The number of participants with ECG absolute values meeting the following criteria was reported: Criterion A: maximum PR interval (time from the beginning of P wave to the start of QRS complex, corresponding to the end of atrial depolarization and onset of ventricular depolarization) >=300 msec; Criterion B: maximum QRS complex(time from Q wave to the end of S wave, corresponding to ventricle depolarization) >=200 msec; Criterion C: maximum QTcF interval (time from the beginning of Q wave to the end of T wave corresponding to electrical systole, corrected for heart rate using Fridericia's formula) 450-<480 msec; Criterion D: maximum QTcF interval 480-<500 msec; Criterion E: maximum QTcF interval (Fridericia's correction) >=500 msec
Measured: Day 1 through Day 127
Number of Participants With Electrocardiogram(ECG) Data That Met the Criteria for Potential Clinical Concern(Increases From Baseline)
Number of participants with ECG meeting the following criteria was reported: Criterion A: maximum PR interval increase from baseline percentage change (PctChg)>= 25/50%; Criterion B: maximum QRS complex increase from baseline PctChg >= 25/50%; Criterion C: maximum QTcF interval increase from baseline 30<=change<60 msec; Criterion D: maximum QTcF interval increase from baseline change >=60 msec.
Measured: Day 1 through Day 127
Number of Participants With Serum Anti-PF-06342674 Antibody Response Listed by Visit
Number of participants with serum anti-PF-06342674 antibody response to the intramuscular tetanus vaccine was reported. Positive Anti-PF-06342674 Antibody response is defined as anti-tetanus toxoid immunoglobulin G (IgG) titer value >=100
Measured: Day 1, Day 15, Day 29, Day 57, Day 85, and Day127 and follow-up visits
Secondary outcomes (7)
Area Under Concentration-Time Curve From Time Zero to Time Tau(AUCtau) on Day 1 and Day 71
Area under the concentration-time profile from time 0 to time tau (τ), the dosing interval, where tau = 168 hours for once a week dosing; tau = 336 hours for once every 2 weeks dosing. On Day 1, 3 participants in cohort 1 had reportable AUCtau values. On Day 71, 6 participants in cohort 1 and 2 participants in cohort 4 had reportable AUCtau values
Measured: 0,1,4 hours post-dose on Day 1 and Day 71
Apparent Oral Clearance (CL/F) on Day 71
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood. On Day 71, 6 participants in cohort 1 had reportable CL/F values
Measured: 0,1,4 hours post-dose on Day 71
Maximum Observed Plasma Concentration (Cmax) on Day 1 and Day 71
Maximum serum concentration was observed directly from data on Day 1 and Day 71. On Day 71, 2 participants in cohort 4 had reportable Cmax values
Measured: 0, 1, 4 hours post-dose on Day 1 and Day 71
Time to Reach Maximum Observed Plasma Concentration (Tmax) on Day 1 and Day 71
Time to reach maximum observed plasma concentration was observed directly from data as time of first occurrence on Day 1 and Day 71. On Day 71, 2 participants in cohort 4 had reportable Tmax values
Measured: 0, 1, 4 hours post-dose on Day 1 and Day 71
Plasma Decay Half-Life (t1/2) on Day 71
Plasma decay half-life is the time measured for the plasma concentration to decrease by one half. On Day 71, 2 participants in cohort 1, 5 participants in cohort 2, and 7 participants in cohort 3 had reportable values for t1/2
Measured: 0, 1, 4 hours post-dose on Day 71
Apparent Volume of Distribution (Vz/F) on Day 71
Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed. On Day 71, 1 participant in cohort 1, 5 participants in cohort 2, and 7 participants in cohort 3 had reportable Vz/F values
Measured: 0, 1, 4 hours post-dose on Day 71
Accumulation Ratio (Rac) on Day 71
Accumulation ratio was calculated from AUCinf at last dose/AUCinf at first dose, where AUCinf is defined as area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC (0-t) plus AUC (t-inf). On Day 71, 3 participants in cohort 1 had reportable Rac values.
Measured: 0, 1, 4, hours post-dose on Day 71
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Jan 2014 (estimated)
- Study start4 Jun 2014
- Primary completion13 Sep 2016
- Study completion13 Sep 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Diabetes Mellitus, Type 1Studies of the same condition, open and under way.
- More trials run by PfizerThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1
- Primary purpose
- Basic science
- Allocation
- Randomised
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 37 participants (actual)
Sponsor and investigators
- Lead sponsor
- Pfizer
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Pfizer CT.gov Call Center, Study director, Pfizer
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02038764
- Sponsor's protocol ID
- B4351003
- Status last verified
- Oct 2017
- First submitted
- 15 Jan 2014
- Last updated
- 3 Aug 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
Publications
Herold KC, Bucktrout SL, Wang X, Bode BW, Gitelman SE, Gottlieb PA, Hughes J, Joh T, McGill JB, Pettus JH, Potluri S, Schatz D, Shannon M, Udata C, Wong G, Levisetti M, Ganguly BJ, Garzone PD; RN168 Working Group. Immunomodulatory activity of humanized anti-IL-7R monoclonal antibody RN168 in subjects with type 1 diabetes. JCI Insight. 2019 Dec 19;4(24):e126054. doi: 10.1172/jci.insight.126054.
PubMed 31852846
Study at a glance
From the registry record, last updated by the sponsor on 3 Aug 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 1 Study To Evaluate The Safety, Tolerability, Immunogenicity, Pharmacokinetics And Pharmacodynamics Of Multiple Ascending Doses Of Pf-06342674 (rn168) In Adults With Type 1 Diabetes
- ClinicalTrials.gov ID
- NCT02038764
- Acronym / sponsor ID
- B4351003
- Conditions
- Diabetes Mellitus, Type 1
- Keywords
- Phase 1, RN168, Adults, Type 1 Diabetes, T1D
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 37 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 4 Jun 2014 (actual)
- Primary completion
- 13 Sep 2016 (actual)
- Study completion
- 13 Sep 2016 (actual)
- First posted
- 17 Jan 2014 (estimated)
- Results
- Posted 3 Aug 2018
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics and immunogenicity of multiple doses of PF-06342674. Several dose levels will be evaluated.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Placebo | Placebo comparator | Drug: PlaceboPlacebo |
| PF-06342674 | Experimental | Biological: PF-06342674 Dose A, Biological: PF-06342674 Dose B, Biological: PF-06342674 Dose C, Biological: PF-06342674 Dose D |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Women and men age 18 and older.
- Diagnosis of type 1 diabetes within 2 years of randomization.
- Peak stimulated C-peptide levels ≥ 0.15 ng/mL.
Key exclusion criteria (4 listed)
- Anticipated ongoing use of diabetes medications other than insulin.
- Evidence or history of diabetic complications with significant end-organ damage.
- Episode of severe hypoglycemia within 60 days of randomization.
- Multiple hospitalizations for diabetic ketoacidosis.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PlaceboPlacebo | Drug | Placebo |
| PF-06342674 Dose AMultiple SC Doses | Biological | PF-06342674 |
| PF-06342674 Dose BMultiple SC Doses | Biological | PF-06342674 |
| PF-06342674 Dose CMultiple SC Doses | Biological | PF-06342674 |
| PF-06342674 Dose DMultiple SC Doses | Biological | PF-06342674 |
Primary outcome
Number of Participants With Dose Limiting or Intolerable Treatment Related Adverse Events (AEs)
Time frame: Day 1 through Day 127
Number of participants with dose limiting or intolerable treatment related adverse events (AEs) was reported. An AE was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event need not necessarily have a causal relationship with the treatment or usage.
Number of Participants With All-Causality Treatment Emergent Adverse Events(TEAEs)
Time frame: Day 1 through Day 127
Number of participants with all-causality treatment emergent adverse events were reported. An AE was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event needed not necessarily have a causal relationship with the treatment or usage. TEAEs were those AEs with initial onset or increasing in severity after the first dose of study drug. TEAEs included both serious and non-serious AE
Number of Participants With Treatment-Related TEAEs
Time frame: Day 1 through Day 127
Number of participants with treatment-related TEAEs were reported. Treatment-related AE was any untoward medical occurrence attributed to study drug in a participant who received study drug. An AE was any untoward medical occurrence in a clinical investigation subject administered a product or medical device; the event needed not necessarily have a causal relationship with the treatment or usage. TEAEs were those AEs with initial onset or increasing in severity after the first dose of study drug.
Number of Participants With All-Causality TEAEs Listed by Common Terminology Criteria for Adverse Events (CTCAE) Grade
Time frame: Day 1 through Day 127
TEAEs were those AEs with initial onset or increasing in severity after the first dose of study drug. CTCAE version 4.03 was used to grade the severity of TEAEs. Grade 1 referred to mild AEs; Grade 2 referred to moderate AEs; Grade 3 referred to severe AEs; Grade 4 referred to AEs with life-threatening consequences, and urgent intervention was needed to manage them; Grade 5 referred to death related to AE.
Number of Participants With All-Causality Treatment-Emergent Hypoglycemic Adverse Events
Time frame: Day 1 through Day 127
Number of participants with all-causality treatment-emergent hypoglycemic adverse events was reported. Any blood glucose values less than(<)55 mg/dL with or without symptoms was reported as adverse events of hypoglycemia.
Number of Participants With All-Causality Treatment-Emergent Hypoglycemic Adverse Events Listed by CTCAE Grade
Time frame: Day 1 through Day 127
Any blood glucose values <55 mg/dL with or without symptoms was reported as adverse events of hypoglycemia. CTCAE version 4.03 was used to grade the severity of TEAEs. Grade 1 referred to mild AEs; Grade 2 referred to moderate AEs; Grade 3 referred to severe AEs; Grade 4 referred to AEs with life-threatening consequences, and urgent intervention was needed to manage them; Grade 5 referred to death related to AE.
Number of Participants With Laboratory Test Abnormalities (Without Regard to Baseline Abnormality)
Time frame: Day 1 through Day 127
The following laboratory test parameters were evaluated in this study: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, absolute total neutrophils, absolute eosinophils, absolute basophils, absolute monocytes, and absolute lymphocytes),coagulation (partial thromboplastin time, prothrombin, and prothrombin international ratio), liver function(total bilirubin, direct bilirubin, indirect bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, total protein, and albumin), renal function (blood urea nitrogen, creatinine, and uric acid), electrolytes (sodium, potassium, chloride, calcium, and venous bicarbonate), clinical chemistry(glucose, glycosylated, and hemoglobin), and urinalysis (pH, qualitative glucose, qualitative protein, qualitative blood, urobilinogen, qualitative bilirubin, nitrites, leukocyte, esterase and microscopy).
Number of Participants With Vital Signs That Met the Criteria for Potential Clinical Concern(Absolute Values)
Time frame: Day 1 through Day 127
Number of participants with vital signs data of absolute values meeting criteria of potential clinical concern. Absolute values were analyzed for systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse rate. Number of participants with vital signs data meeting the following criteria was reported: Criterion A: SBP <90 millimeter of mercury(mmHg); Criterion B: DBP <50 mmHg; Criterion C: pulse rate < 40 beats per minute(BPM); Criterion D: pulse rate >120 BPM
Number of Participants With Vital Signs That Met the Criteria for Potential Clinical Concern(Decreases From Baseline)
Time frame: Day 1 through Day 127
The number of participants with vital signs data of maximum decrease from baseline meeting the following criteria was reported: Criterion A: maximum decrease from baseline in systolic BP >= 30 mmHg; Criterion B: maximum decrease from baseline in diastolic BP >=20 mmHg
Number of Participants With Vital Signs That Met the Criteria for Potential Clinical Concern(Increases From Baseline)
Time frame: Day 1 through Day 127
The number of participants with vital signs data of maximum increase from baseline meeting the following criteria was reported: Criterion A: maximum increase from baseline in systolic BP >= 30 mmHg; Criterion B: maximum increase from baseline in diastolic BP >= 20 mmHg
Number of Participants With Electrocardiogram(ECG) Data That Met the Criteria for Potential Clinical Concern(Absolute Value)
Time frame: Day 1 through Day 127
The number of participants with ECG absolute values meeting the following criteria was reported: Criterion A: maximum PR interval (time from the beginning of P wave to the start of QRS complex, corresponding to the end of atrial depolarization and onset of ventricular depolarization) >=300 msec; Criterion B: maximum QRS complex(time from Q wave to the end of S wave, corresponding to ventricle depolarization) >=200 msec; Criterion C: maximum QTcF interval (time from the beginning of Q wave to the end of T wave corresponding to electrical systole, corrected for heart rate using Fridericia's formula) 450-<480 msec; Criterion D: maximum QTcF interval 480-<500 msec; Criterion E: maximum QTcF interval (Fridericia's correction) >=500 msec
Number of Participants With Electrocardiogram(ECG) Data That Met the Criteria for Potential Clinical Concern(Increases From Baseline)
Time frame: Day 1 through Day 127
Number of participants with ECG meeting the following criteria was reported: Criterion A: maximum PR interval increase from baseline percentage change (PctChg)>= 25/50%; Criterion B: maximum QRS complex increase from baseline PctChg >= 25/50%; Criterion C: maximum QTcF interval increase from baseline 30<=change<60 msec; Criterion D: maximum QTcF interval increase from baseline change >=60 msec.
Number of Participants With Serum Anti-PF-06342674 Antibody Response Listed by Visit
Time frame: Day 1, Day 15, Day 29, Day 57, Day 85, and Day127 and follow-up visits
Number of participants with serum anti-PF-06342674 antibody response to the intramuscular tetanus vaccine was reported. Positive Anti-PF-06342674 Antibody response is defined as anti-tetanus toxoid immunoglobulin G (IgG) titer value >=100
7 secondary outcomes
Area Under Concentration-Time Curve From Time Zero to Time Tau(AUCtau) on Day 1 and Day 71
Time frame: 0,1,4 hours post-dose on Day 1 and Day 71
Apparent Oral Clearance (CL/F) on Day 71
Time frame: 0,1,4 hours post-dose on Day 71
Maximum Observed Plasma Concentration (Cmax) on Day 1 and Day 71
Time frame: 0, 1, 4 hours post-dose on Day 1 and Day 71
Time to Reach Maximum Observed Plasma Concentration (Tmax) on Day 1 and Day 71
Time frame: 0, 1, 4 hours post-dose on Day 1 and Day 71
Plasma Decay Half-Life (t1/2) on Day 71
Time frame: 0, 1, 4 hours post-dose on Day 71
Apparent Volume of Distribution (Vz/F) on Day 71
Time frame: 0, 1, 4 hours post-dose on Day 71
Accumulation Ratio (Rac) on Day 71
Time frame: 0, 1, 4, hours post-dose on Day 71
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Aug 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 31852846Herold KC, Bucktrout SL, Wang X, Bode BW, Gitelman SE, Gottlieb PA, Hughes J, Joh T, McGill JB, Pettus JH, Potluri S, Schatz D, Shannon M, Udata C, Wong G, Levisetti M, Ganguly BJ, Garzone PD; RN168 Working Group. Immunomodulatory activity of humanized anti-IL-7R monoclonal antibody RN168 in subjects with type 1 diabetes. JCI Insight. 2019 Dec 19;4(24):e126054. doi: 10.1172/jci.insight.126054.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Pfizer CT.gov Call Center study director
Pfizer
21 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing PF-06342674 Dose A, PF-06342674 Dose B and PF-06342674 Dose C in people with Diabetes Mellitus, Type 1, run by Pfizer at 21 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Aug 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 21 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 3 Aug 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants With Dose Limiting or Intolerable Treatment Related Adverse Events (AEs) (time frame: Day 1 through Day 127). The study lists 13 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02038764, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Aug 2018.