Diabetes MellitusPhase 2NCT05579977
Trial to Learn About the Study Medicine (PF-07081532) and Rybelsus in People With Type 2 Diabetes and Separately PF-07081532 in People With Obesity
A Phase 2 study testing PF-07081532 and Rybelsus in people with Diabetes Mellitus and Obesity, run by Pfizer at 90 sites in 8 countries.
Trial summary
The purpose of this study is to find out if PF-07081532 ("the active study drug"), is safe and helps treat people with obesity without diabetes to lose weight, and people with diabetes to keep their blood sugar in good control. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Diabetes Mellitus, Obesity
- What is being tested?
- PF-07081532 and Rybelsus
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 902 participants
- Where
- 90 sitesin 8 countries
- Study dates
- 27 Oct 2022to 22 Sep 2023
- Phase
- Phase 2
- 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 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- T2DM
- T2DM inadequately controlled with metformin
- BMI ≥23.0 kg/m2 (≥20.0 kg/m2 in Japan)
- HbA1C of 7% to 10% (53-86 mmol/mol)
- FPG ≤270 mg/dL (15 mmol/L)
- Obesity
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- BMI ≥30.0 kg/m2
- HbA1C ≤6.4% (47 mmol/mol)
- FPG ≤126 mg/dL (7 mmol/L)
Who cannot join
- Any of the following: Active/current, symptomatic gallbladder disease; History of pancreatitis in the prior 2-months;History of Type 1 Diabetes Mellitus, or secondary forms of diabetes; Any condition affecting drug absorption; Medical history of active liver disease (other than non-alcoholic hepatic steatosis)
- Use of pharmacological agents with approved indication for weight loss
- T2DM:Use of any agent (other than metformin)for the explicit purpose of glycemic control;History of diabetic ketoacidosis;Proliferative retinopathy or maculopathy requiring acute treatment;
- Obesity: Previous or planned weight reduction surgery; Major depressive disorder or other severe psychiatric disorders; Any lifetime history of a suicide attempt; PHQ-9 score ≥15; Response of "yes" to Question 4 or 5, or on any suicidal behavioral question on the C-SSRS
- Clinically significant cardiovascular conditions
- Uncontrolled blood pressure
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- Personal or within first-degree relative family history of MTC or MEN2
- Other medical or psychiatric condition that may increase the risk of study participation or, in the investigator's judgment, make the participant inappropriate for the study
- Any of the following central lab results: Fasting C-peptide <0.8 ng/mL; ALT or AST ≥2.5x ULN; Direct bilirubin >ULN or T Bili >1.5x ULN except when participants have a history of Gilbert syndrome ; TSH >1.5x ULN or <LLN; Serum calcitonin >ULN; Serum amylase or serum lipase >ULN; eGFR <45 ml/min/1.73 ; Active Hepatitis B, or Hepatitis C; A positive urine drug test for illicit drugs
Trial locations and contacts
90 sites in 8 countries.
90 sites in 8 countries
United States39 sites
Anaheim Clinical Trials, LLC
Anaheim, California, 92801
Elligo Clinical Research Center
Austin, Texas, 78738
Heritage Valley Multispecialty Group, Inc
Beaver, Pennsylvania, 15009
Hassman Research Institute
Berlin, New Jersey, 08009
Mercury Street Medical Group, PLLC
Butte, Montana, 59701
San Fernando Valley Health Institute
Canoga Park, California, 91304
Trinity Clinical Research
Centreville, Alabama, 35042
Cedar Crosse Research Center
Chicago, Illinois, 60607
Meridian Clinical Research, LLC
Cincinnati, Ohio, 45219
StudyMetrix Research
City of Saint Peters, Missouri, 63303
Innovative Research of West Florida
Clearwater, Florida, 33756
Velocity Clinical Research, Dallas
Dallas, Texas, 75230
UT Southwestern Medical Center
Dallas, Texas, 75390
Velocity Clinical Research, Providence
East Greenwich, Rhode Island, 02818
Anderson Medical Research
Ft. Washington, Maryland, 20744
Medication Management
Greensboro, North Carolina, 27405
Jacksonville Center for Clinical Research
Jacksonville, Florida, 32216
Medical Colleagues of Texas, LLP
Katy, Texas, 77450
Manassas Clinical Research Center
Manassas, Virginia, 20110
Catalina Research Institute, LLC
Montclair, California, 91763
HealthStar Physicians, P.C.
Morristown, Tennessee, 37813
Healthstar Physicians
Morristown, Tennessee, 37813
Adult Medicine of Lake County
Mt. Dora, Florida, 32757
Alliance for Multispecialty Research, LLC
Norman, Oklahoma, 73069
Tapia Internal Medicine Clinic
Paris, Texas, 75462
Preferred Primary Care Physicians, Preferred Clinical Research (Ofc 18)
Pittsburgh, Pennsylvania, 15236
Empire Clinical Research
Pomona, California, 91767
Endocrine Research Solutions, Inc.
Roswell, Georgia, 30076
Northeast Clinical Research of San Antonio
San Antonio, Texas, 78233
Consano Clinical Research, LLC
Shavano Park, Texas, 78231
Evanston Premier Healthcare Research LLC
Skokie, Illinois, 60077
Chrysalis Clinical Research
St. George, Utah, 84790
Southwest Internal Medicine
St. George, Utah, 84790
Sugar Lakes Family Practice
Sugar Land, Texas, 77479
Premier Research
Trenton, New Jersey, 08611
University Clinical Investigators, Inc.
Tustin, California, 92780
Preferred Primary Care Physicians
Uniontown, Pennsylvania, 15401
Diablo Clinical Research, Inc.
Walnut Creek, California, 94598
Iowa Diabetes and Endocrinology Research Center
West Des Moines, Iowa, 50265
Canada11 sites
Aggarwal and Associates Limited
Brampton, Ontario, L6T 0G1
Dawson Clinical Research
Guelph, Ontario, N1H 1B1
Milestone Research Inc.
London, Ontario, N5W 6A2
Manna Research Mirabel
Mirabel, Quebec, J7J 2K8
G A Research Associates
Moncton, New Brunswick, E1G 1A7
Diex Recherche Quebec Inc.
Québec, G1V 4T3
Centre de Recherche Saint-Louis
Québec, G1W 4R4
Bluewater Clinical Research Group Inc.
Sarnia, Ontario, N7T 4X3
LMC Clinical Research Inc. (Bayview)
Toronto, Ontario, M4G 3E8
Dr. M.B. Jones Inc.
Victoria, British Columbia, V8V 4A1
Diex Recherche Victoriavile Inc.
Victoriaville, Quebec, G6P 6P6
Japan11 sites
Seiwa Clinic
Adachi-ku, Tokyo, 120-0011
Seiwa Clinic
Adachi-ku, Tokyo, 123-0845
Tokyo-Eki Center-building Clinic
Chuo-ku, Tokyo, 103-0027
Medical Corporation Chiseikai Tokyo Center Clinic
Chuo-ku, Tokyo, 103-0028
Fukuwa Clinic
Chuo-ku, Tokyo, 104-0031
Shiraiwa Medical Clinic
Kashihara, Osaka, 582-0005
Nakakinen clinic
Naka, Ibaraki, 311-0113
Medical Corporation Heishinkai ToCROM Clinic
Shinjuku-ku, Tokyo, 160-0008
Medical Corporation Heishinkai OCROM Clinic
Suita-shi, Osaka, 565-0853
Yokohama Minoru Clinic
Yokohama, Kanagawa, 232-0064
Yokohama Minoru Clinic
Yokohama, 232-0064
Czechia8 sites
EDUMED s.r.o.
Broumov, Kralovehradecky KRAY, 550 01
MUDr. Alena Vachova
České Budějovice, South Bohemian Region, 37011
Agentura Science Pro
Olomouc, 779 00
Private Practice - Dr. Tomáš Brychta
Olomouc, 779 00
Kardiologicka a Angiologicka Ambulance
Ostrava, Ostrava Město, 700 30
EUC Klinika Praha
Prague, 150 00
Clinical Trials Service s.r.o.
Uherské Hradiště, Zlín, 686 01
Clinical Trials Service s.r.o.
Uherské Hradiště
Hungary7 sites
DRC Gyógyszervizsgáló Központ
Balatonfüred, Veszprém megye, 8230
ClinDiab Kft.
Budapest, 1089
Belinus Orvosi és Számitástechnikai Bt
Debrecen, Hajdú-Bihar, 4025
Debreceni Egyetem Klinikai Kozpont
Debrecen, 04032
Debreceni Egyetem Klinikai Kozpont
Debrecen, 4032
Borbánya Praxis
Nyíregyháza, Borbánya, Szabolcs-Szatmár-Bereg, 4405
CLINFAN Szolgáltató Kft
Szekszárd, Tolna County, 7100
Poland7 sites
Zdrowie Osteo-Medic
Bialystok, Podlaskie Voivodeship, 15-351
Centrum Badan Klinicznych PI-House sp. z o.o.
Gdansk, Pomeranian Voivodeship, 80-546
Gabinet Lekarski Małgorzata Jadwiga Saryusz-Wolska
Lodz, 90-132
Oświęcimskie Centrum Badań Klinicznych
Oświęcim, Lesser Poland Voivodeship, 32-600
Centrum Zdrowia Metabolicznego Pawel Bogdanski
Poznan, 60-589
KO-MED Centra Kliniczne Pulawy
Puławy, Lublin Voivodeship, 24-100
NZOZ Przychodnia Specjalistyczna Andrzej Wittek, Henryk Rudzki
Ruda Śląska, Silesian Voivodeship, 41-709
Bulgaria5 sites
MHAT Botevgrad
Botevgrad, Sofia, 2140
Medical Centre "Asklepiy"
Dupnitsa, Kyustendil, 2600
Medical Center Zdrave 1
Kozloduy, Vratsa, 3320
Diagnostic Consultative Center Aleksandrovska
Sofia, Sofia (stolitsa), 1431
"Prevencia - 2000 - Medical Center for Prehospital Medical Care" OOD
Stara Zagora, 6000
Puerto Rico2 sites
Latin Clinical Trial Center
San Juan, 00909
GCM Medical Group, PSC - Hato Rey Site
San Juan, 00917
About this study
Official title: A PHASE 2, RANDOMIZED, DOUBLE-BLIND, PLACEBO CONTROLLED, DOSE RANGING, DOSE FINDING, PARALLEL GROUP STUDY TO ASSESS EFFICACY AND SAFETY OF PF-07081532, AND OPEN LABEL ORAL SEMAGLUTIDE, IN ADULTS WITH TYPE 2 DIABETES MELLITUS (T2DM) INADEQUATELY CONTROLLED ON METFORMIN, AND SEPARATELY PF-07081532 COMPARED TO MATCHING PLACEBO IN ADULTS WITH OBESITY BUT WITHOUT T2DM
The purpose of this study is to find out if PF-07081532 ("the active study drug"), is safe and helps treat people with obesity without diabetes to lose weight, and people with diabetes to keep their blood sugar in good control. Individuals diagnosed with diabetes that are on metformin or individuals with obesity without diabetes will be included in the study.
Those participating in the diabetes part of the study, will receive either active study drug, placebo, or an approved treatment called Rybelsus. Those in the obesity part of the study, will receive either active study drug or placebo. The study will last for about 36 weeks except for the first 25% of the participants that enter in which case the study will last for approximately 48 weeks. during this time there will be visits every 4 weeks with phone calls in between.
- Conditions
- Diabetes Mellitus, Obesity
- Being tested
- PF-07081532, Placebo, Rybelsus
- Keywords
- Diabetes Mellitus, Obesity
- Medical subject headings
- Diabetes Mellitus, Obesity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PF-07081532Drug
Oral glucagon-like peptide-1 receptor agonist
PlaceboOther
No drug
RybelsusDrug
Oral Semaglutide
| Study group | Role | What they receive |
|---|---|---|
| PF-07081532 20 mg T2DM | Experimental | PF-07081532 20 mg daily in T2DM Receives: Drug: PF-07081532 |
| PF-07081532 40 mg T2DM | Experimental | PF-07081532 40 mg daily in T2DM Receives: Drug: PF-07081532 |
| PF-07081532 80 mg T2DM | Experimental | PF-07081532 80 mg daily in T2DM Receives: Drug: PF-07081532 |
| PF-07081532 160 mg T2DM | Experimental | PF-07081532 160 mg daily in T2DM Receives: Drug: PF-07081532 |
| PF-07081532 260 mg T2DM | Experimental | PF-07081532 260 mg daily in T2DM Receives: Drug: PF-07081532 |
| Placebo T2DM | Placebo comparator | Placebo daily in T2DM Receives: Other: Placebo |
| PF-07081532 80 mg Obesity | Experimental | PF-07081532 80 mg daily in Obesity Receives: Drug: PF-07081532 |
| PF-07081532 140 mg Obesity | Experimental | PF-07081532 140 mg daily in Obesity Receives: Drug: PF-07081532 |
| PF-07081532 200 mg Obesity (Option 1) | Experimental | PF-07081532 200 mg daily in Obesity Receives: Drug: PF-07081532 |
| PF-07081532 200 mg Obesity (Option 2) | Experimental | PF-07081532 200 mg daily in Obesity Receives: Drug: PF-07081532 |
| PF-07081532 260 mg Obesity | Experimental | PF-07081532 260 mg daily in Obesity Receives: Drug: PF-07081532 |
| Rybelsus 14 mg T2DM | Active comparator | Semaglutide 14 mg daily in T2DM Receives: Drug: Rybelsus |
| Placebo Obesity | Placebo comparator | Placebo in Obesity Receives: Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Placebo-adjusted, Change From Baseline in Percentage of Glycated Hemoglobin (HbA1c) at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Placebo-adjusted, Percent Change From Baseline in Body Weight at Week 32: Cohort 2 (Obesity)
Body weight was measured using a calibrated weighing scale.
Measured: Baseline (result closest prior to dosing on Day 1), week 32
Secondary outcomes (24)
Percentage of Participants Who Achieved HbA1C <7% at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Change From Baseline in Fasting Plasma Glucose (FPG) at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Percent Change From Baseline in Body Weight at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Body weight was measured using a calibrated weighing scale.
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Placebo-adjusted, Change From Baseline in HbA1C in the Rybelsus Arm at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
This outcome measure was planned to be analyzed only for rybelsus arm and placebo arm as pre-specified in the protocol.
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Percentage of Participants Achieving >=5%, >=10%, and >=15% Body Weight Loss at Week 32 Relative to Baseline: Cohort 2 (Obesity)
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Absolute Change From Baseline in Waist Circumference at Week 32: Cohort 2 (Obesity)
Waist circumference was measured at midpoint, between lower margin of last palpable rib and top of iliac crest (approximately 1 inch [2.54 centimeter {cm}] above the navel). It was measured by using an anthropometric tape (stretch-resistant).
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Absolute Change From Baseline in Waist-to-hip Ratio at Week 32: Cohort 2 (Obesity)
The hip circumference was defined as the circumference around the widest portion of the buttocks. Waist circumference was measured at midpoint, between lower margin of last palpable rib and top of iliac crest (approximately 1 inch [2.54 cm] above the navel). The measurements were performed using an anthropometric tape (stretch-resistant).
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Change From Baseline in Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) at Week 32: Cohort 2 (Obesity)
HOMA-IR was calculated as: fasting plasma insulin ([FPI]*(FPG)/405 and measured in terms of mg/dL* (milliunits per liter).
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Change From Baseline in Homeostatic Model Assessment for Insulin Sensitivity (HOMA-S) at Week 32: Cohort 2 (Obesity)
HOMA-S was calculated as (22.5/[FPI] * FPG) *100 and measured in terms of percentage sensitivity.
Measured: Baseline (result closest prior to dosing on Day 1), Week 32
Number of Participants With Treatment Emergent Adverse Events (TEAEs): Cohort 1 (Type 2 Diabetes Mellitus)
An adverse event (AE) was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. TEAEs were any AEs that occurred on or after the first dose of treatment but before the last dose plus lag time.
Measured: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Treatment Emergent Adverse Events (TEAEs): Cohort 2 (Obesity)
An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. TEAEs were any AEs that occurred on or after the first dose of treatment but before the last dose plus lag time.
Measured: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Serious Adverse Events (SAEs): Cohort 1 (Type 2 Diabetes Mellitus)
SAE defined as any untoward medical occurrence that, at any dose, met one or more of the following criteria: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of hospitalization; resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); resulted in congenital anomaly/birth defect; was a suspected transmission via a Pfizer product of an infectious agent, pathogenic or non-pathogenic; other important medical events.
Measured: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Serious Adverse Events (SAEs): Cohort 2 (Obesity)
SAE defined as any untoward medical occurrence that, at any dose, met one or more of the following criteria: resulted in death; was life-threatening; required inpatient hospitalization or prolongation of hospitalization; resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); resulted in congenital anomaly/birth defect; was a suspected transmission via a Pfizer product of an infectious agent, pathogenic or non-pathogenic; other important medical events.
Measured: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants Reporting Adverse Events Leading to Permanent Discontinuation From Study Treatment and Study: Cohort 1 (Type 2 Diabetes Mellitus)
\ An AE was any untoward medical occurrence in a participants or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. AEs leading to permanent discontinuation from study were those with an AE record indicating the AE caused permanent discontinuation from the study. AEs leading to permanent discontinuation from study treatment were those AEs with an AE record indicating that action taken with study treatment was drug withdrawn but AE did not cause the participant to be discontinued from study.
Measured: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants Reporting Adverse Events Leading to Permanent Discontinuation From Study Treatment and Study: Cohort 2 (Obesity)
An AE was any untoward medical occurrence in a participants or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. AEs leading to permanent discontinuation from study were those with an AE record indicating the AE caused permanent discontinuation from the study. AEs leading to permanent discontinuation from study treatment were those AEs with an AE record indicating that action taken with study treatment was drug withdrawn but AE did not cause the participant to be discontinued from study.
Measured: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Hypoglycemic Adverse Events (HAE) According to Titration Dose: Cohort 1 (Type 2 Diabetes Mellitus)
Glucose values were monitored using glucometer. Hypoglycemia =plasma/blood glucose value of <70 mg/dL (3.9 millimoles per liter [mmol/L]). Severe HAE: Participant was unable to treat him/herself due to neurological impairment (not age) and required assistance of another person, at least one neurological symptom of memory loss, confusion, uncontrolled behavior etc. Either documented blood glucose<=54 mg/dL (2.7 mmol/L). Documented symptomatic: An event during which symptoms of HAE were accompanied with plasma/blood glucose <70 mg/dL and prompt resolution with food intake, SC glucagon, or IV glucose. Probable symptomatic HAE: An event during which symptoms of an HAE were not accompanied by a plasma glucose determination but was presumably caused by a plasma glucose concentration <70 mg/dL and prompt resolution with food intake, SC glucagon, or IV glucose. Asymptomatic: An event not accompanied by typical symptoms of an HAE, but a plasma/blood glucose value of <70 mg/dL was reported.
Measured: Up to week 28
Number of Participants With Hypoglycemic Adverse Events According to Titration Dose: Cohort 2 (Obesity)
Glucose values were monitored using glucometer. Hypoglycemia =plasma/blood glucose value of <70 mg/dL (3.9 mmol/L). Severe HAE: Participant was unable to treat him/herself due to neurological impairment (not age) and required assistance of another person, at least one neurological symptom of memory loss, confusion, uncontrolled behavior etc. Either documented blood glucose<=54 mg/dL (2.7 mmol/L). Documented symptomatic: An event during which symptoms of HAE were accompanied with plasma/blood glucose <70 mg/dL u and prompt resolution with food intake, SC glucagon, or IV glucose. Probable symptomatic HAE: An event during which symptoms of an HAE were not accompanied by a plasma glucose determination but was presumably caused by a plasma glucose concentration <70 mg/dL and prompt resolution with food intake, SC glucagon, or IV glucose. Asymptomatic: An event not accompanied by typical symptoms of an HAE, but a plasma/blood glucose value of <70 mg/dL was reported.
Measured: Up to week 28
Number of Participants With Vital Sign Abnormalities: Cohort 1 (Type 2 Diabetes Mellitus)
Vital signs included blood pressure and pulse rate and were measured with the participants in a seated position after at least 5 minutes of rest for the participant. Criteria for abnormalities included: Systolic Blood Pressure (millimeter of mercury [mmHg]): value more than (>) 200 and value less than (<) 90; Diastolic blood pressure: value > 100 and < 40; Pulse rate: (beats per minute [BPM]): value < 40 and > 110.
Measured: Up to week 28
Number of Participants With Vital Sign Abnormalities: Cohort 2 (Obesity)
Vital signs included blood pressure and pulse rate and were measured with the participants in a seated position after at least 5 minutes of rest for the participant. Criteria for abnormalities included: Systolic blood pressure (mmHg): value > 200 and value < 90; Diastolic blood pressure: value > 100 and < 40; Pulse rate: (BPM): value < 40 and > 110.
Measured: Up to week 28
Number of Participants With Clinical Laboratory Abnormalities: Cohort 1 (Type 2 Diabetes Mellitus)
Hematology: platelets (10^9/L)< 0.5*lower limit of normal (LLN); leukocytes< 0.6*LLN and >1.5*upper limit of normal (ULN); lymphocytes and neutrophils <0.8*LLN and >1.2*ULN; basophils, eosinophils, monocytes:>1.2*ULN; prothrombin time (sec) >1.1*ULN; prothrombin international normalized ratio >1.1*ULN; clinical chemistry: bilirubin (mg/dL), indirect bilirubin:>1.5*ULN; aspartate and alanine aminotransferase, gamma glutamyl transferase (U/L):>3.0*ULN; urea nitrogen and creatinine (mg/dL)>1.3* ULN;HDL cholesterol (mg/dL)<0.8*LLN; LDL (mg/dL)>1.2*ULN, Triglycerides (mg/dL):>1.3*ULN; Potassium (milliequivalents per liter) < 0.9*LLN and > 1.1* ULN; calcium (mg/dL)< 0.9*LLN, Thyroxine (nanograms/dL<0.8*LLN and >1.2*ULN, HbA1C (%)>1.3*ULN; Amylase, Lipase (U/L) and Glucose -Fasting (mg/dL)>1.5*ULN; urinalysis: pH> 8; urine glucose, ketones, protein, hemoglobin, nitrite and leukocyte esterase>=1. Number of participants with abnormalities in any of the laboratory parameters is reported.
Measured: Up to week 28
Number of Participants With Clinical Laboratory Abnormalities: Cohort 2 (Obesity)
Hematology: platelets (10^9/L)< 0.5* LLN; leukocytes< 0.6*LLN and >1.5*ULN; lymphocytes and neutrophils <0.8*LLN and >1.2*ULN; basophils, eosinophils, monocytes:>1.2*ULN; prothrombin time (sec) >1.1*ULN; prothrombin international normalized ratio >1.1*ULN; clinical chemistry: bilirubin (mg/dL), indirect bilirubin:>1.5*ULN; aspartate and alanine aminotransferase, gamma glutamyl transferase (U/L):>3.0*ULN; urea nitrogen and creatinine (mg/dL)>1.3* ULN;HDL cholesterol (mg/dL)<0.8*LLN; LDL (mg/dL)>1.2*ULN, Triglycerides (mg/dL):>1.3*ULN; Potassium (milliequivalents per liter) < 0.9*LLN and > 1.1* ULN; calcium (mg/dL)< 0.9*LLN, Thyroxine (nanograms/dL<0.8*LLN and >1.2*ULN, HbA1C (%)>1.3*ULN; Amylase, Lipase (U/L) and Glucose -Fasting (mg/dL)>1.5*ULN; urinalysis: pH> 8; urine glucose, ketones, protein, hemoglobin, nitrite and leukocyte esterase>=1. Number of participants with abnormalities in any of the laboratory parameters is reported.
Measured: Up to week 28
Number of Participants With ECG Abnormalities: Cohort 1 (Type 2 Diabetes Mellitus)
Standard 12-lead ECGs were performed after the participant had rested quietly for more than 10 minutes in a supine position utilizing an ECG machine that automatically calculated the heart rate and measured PR interval, QT interval, QT interval corrected using Fridericia's formula (QTcF), and QRS complex. ECG abnormalities were categorized as: PR interval (milliseconds [msec]), Value >= 300; percent change (%Chg) greater than equal (>=) 25/50%. QRS duration (msec): Value >= 140 and %Chg >= 50%. QT interval (msec): Value > 500; QTCF interval (msec): 450 < Value <= 480, 480 < Value <= 500, Value > 500; 30 <= Change (Chg) <= 60; Chg > 60.
Measured: Up to week 28
Number of Participants With ECG Abnormalities: Cohort 2 (Obesity)
Standard 12-lead ECGs were performed after the participant had rested quietly for more than 10 minutes in a supine position utilizing an ECG machine that automatically calculated the heart rate and measured PR interval, QT interval, QTcF, and QRS complex. ECG abnormalities were categorized as: PR interval msec, Value >= 300; percentage change (%Chg) >= 25/50%. QRS duration (msec): Value >= 140 and %Chg >= 50%. QT interval (msec): Value > 500; QTCF interval (msec): 450 < Value <= 480, 480 < Value <= 500, Value > 500; 30 <= Change (Chg) <= 60; Chg > 60.
Measured: Up to week 28
Number of Participants According to Columbia-Suicide Severity Rating Scale (C-SSRS) Category: Cohort 2 (Obesity) Only
C-SSRS is an interview-based rating scale to assess suicidal ideation and suicidal behavior and had a binary response (yes/no). C-SSRS data was mapped to C-CASA per Guidance for Industry: Suicidal Ideation and Behavior: Prospective Assessment of Occurrence in Clinical Trials. A participant was said to have suicidal behavior in case of any of following events: 1) completed suicide; 2) suicide attempt; or 3) preparatory acts toward imminent suicidal behavior. A participant showed suicidal ideation if they responded 'yes' to any of the 5 questions, 'Wish to be dead; Non-Specific Active Suicidal Thoughts Active Suicidal Ideation with Any Methods (Not Plan) without Intent to Act; active Suicidal Ideation with Some Intent to Act, without Specific Plan; Active Suicidal Ideation with Specific Plan and Intent. The participant was said to exhibit Self-injurious behavior, no suicidal intent if they responded as Yes to 'Has participant engaged in Non-suicidal Self-Injurious Behavior
Measured: Baseline (result closest prior to dosing on Day 1), anytime post-baseline (Up to Week 28)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Oct 2022
- Study start27 Oct 2022
- Primary completion14 Jul 2023
- Study completion22 Sep 2023
Why it stopped: The decision to terminate clinical development of PF-07081532 is based on pharmacokinetic data from Phase 1 drug-drug-interaction studies and laboratory measurements of elevated transaminases in these Phase 1 studies as well as a Phase 2 study.
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 (2)Papers the sponsor has linked to this study.
- Other trials for Diabetes MellitusStudies 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 902 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
- NCT05579977
- Sponsor's protocol ID
- C3991004
- Other IDs
- 2022-002834-15
- Status last verified
- Jul 2024
- First submitted
- 11 Oct 2022
- Last updated
- 1 Aug 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical\_trials/trial\_data\_and\_results/data\_requests.
Publications
Kokkorakis M, Chakhtoura M, Rhayem C, Al Rifai J, Ghezzawi M, Valenzuela-Vallejo L, Mantzoros CS. Emerging pharmacotherapies for obesity: A systematic review. Pharmacol Rev. 2025 Jan;77(1):100002. doi: 10.1124/pharmrev.123.001045. Epub 2024 Nov 22.
PubMed 39952695Amin NB, Frederich R, Tsamandouras N, Haggag AZ, Schuster T, Zmuda W, Palmer A, Vasas S, Buckley G, Smith TR, DuBrava SJ, Zhu Q, Johnson M. Evaluation of an oral small-molecule glucagon-like peptide-1 receptor agonist, lotiglipron, for type 2 diabetes and obesity: A dose-ranging, phase 2, randomized, placebo-controlled study. Diabetes Obes Metab. 2025 Jan;27(1):215-227. doi: 10.1111/dom.16005. Epub 2024 Oct 16.
PubMed 39415344
Study at a glance
From the registry record, last updated by the sponsor on 1 Aug 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A PHASE 2, RANDOMIZED, DOUBLE-BLIND, PLACEBO CONTROLLED, DOSE RANGING, DOSE FINDING, PARALLEL GROUP STUDY TO ASSESS EFFICACY AND SAFETY OF PF-07081532, AND OPEN LABEL ORAL SEMAGLUTIDE, IN ADULTS WITH TYPE 2 DIABETES MELLITUS (T2DM) INADEQUATELY CONTROLLED ON METFORMIN, AND SEPARATELY PF-07081532 COMPARED TO MATCHING PLACEBO IN ADULTS WITH OBESITY BUT WITHOUT T2DM
- ClinicalTrials.gov ID
- NCT05579977
- Acronym / sponsor ID
- C3991004
- Conditions
- Diabetes Mellitus, Obesity
- Keywords
- Diabetes Mellitus, Obesity
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- TerminatedReason stopped: The decision to terminate clinical development of PF-07081532 is based on pharmacokinetic data from Phase 1 drug-drug-interaction studies and laboratory measurements of elevated transaminases in these Phase 1 studies as well as a Phase 2 study.
- Enrolment
- 902 participants (actual)
- Lead sponsor
- PfizerIndustry (pharma, biotech, devices)
- Study start
- 27 Oct 2022 (actual)
- Primary completion
- 14 Jul 2023 (actual)
- Study completion
- 22 Sep 2023 (actual)
- First posted
- 14 Oct 2022 (actual)
- Results
- Posted 1 Aug 2024
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 find out if PF-07081532 ("the active study drug"), is safe and helps treat people with obesity without diabetes to lose weight, and people with diabetes to keep their blood sugar in good control. Individuals diagnosed with diabetes that are on metformin or individuals with obesity without diabetes will be included in the study.
Those participating in the diabetes part of the study, will receive either active study drug, placebo, or an approved treatment called Rybelsus. Those in the obesity part of the study, will receive either active study drug or placebo. The study will last for about 36 weeks except for the first 25% of the participants that enter in which case the study will last for approximately 48 weeks. during this time there will be visits every 4 weeks with phone calls in between.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 13
| Arm | Type | Receives |
|---|---|---|
| PF-07081532 20 mg T2DM | Experimental | Drug: PF-07081532PF-07081532 20 mg daily in T2DM |
| PF-07081532 40 mg T2DM | Experimental | Drug: PF-07081532PF-07081532 40 mg daily in T2DM |
| PF-07081532 80 mg T2DM | Experimental | Drug: PF-07081532PF-07081532 80 mg daily in T2DM |
| PF-07081532 160 mg T2DM | Experimental | Drug: PF-07081532PF-07081532 160 mg daily in T2DM |
| PF-07081532 260 mg T2DM | Experimental | Drug: PF-07081532PF-07081532 260 mg daily in T2DM |
| Placebo T2DM | Placebo comparator | Other: PlaceboPlacebo daily in T2DM |
| PF-07081532 80 mg Obesity | Experimental | Drug: PF-07081532PF-07081532 80 mg daily in Obesity |
| PF-07081532 140 mg Obesity | Experimental | Drug: PF-07081532PF-07081532 140 mg daily in Obesity |
| PF-07081532 200 mg Obesity (Option 1) | Experimental | Drug: PF-07081532PF-07081532 200 mg daily in Obesity |
| PF-07081532 200 mg Obesity (Option 2) | Experimental | Drug: PF-07081532PF-07081532 200 mg daily in Obesity |
| PF-07081532 260 mg Obesity | Experimental | Drug: PF-07081532PF-07081532 260 mg daily in Obesity |
| Rybelsus 14 mg T2DM | Active comparator | Drug: RybelsusSemaglutide 14 mg daily in T2DM |
| Placebo Obesity | Placebo comparator | Other: PlaceboPlacebo in Obesity |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (9 listed)
- T2DM
- T2DM inadequately controlled with metformin
- BMI ≥23.0 kg/m2 (≥20.0 kg/m2 in Japan)
- HbA1C of 7% to 10% (53-86 mmol/mol)
- FPG ≤270 mg/dL (15 mmol/L)
Key exclusion criteria (9 listed)
- Any of the following: Active/current, symptomatic gallbladder disease; History of pancreatitis in the prior 2-months;History of Type 1 Diabetes Mellitus, or secondary forms of diabetes; Any condition affecting drug absorption; Medical history of active liver disease (other than non-alcoholic hepatic steatosis)
- Use of pharmacological agents with approved indication for weight loss
- T2DM:Use of any agent (other than metformin)for the explicit purpose of glycemic control;History of diabetic ketoacidosis;Proliferative retinopathy or maculopathy requiring acute treatment;
- Obesity: Previous or planned weight reduction surgery; Major depressive disorder or other severe psychiatric disorders; Any lifetime history of a suicide attempt; PHQ-9 score ≥15; Response of "yes" to Question 4 or 5, or on any suicidal behavioral question on the C-SSRS
- Clinically significant cardiovascular conditions
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 |
|---|---|---|
| PF-07081532Oral glucagon-like peptide-1 receptor agonist | Drug | PF-07081532 140 mg Obesity, PF-07081532 160 mg T2DM, PF-07081532 20 mg T2DM, PF-07081532 200 mg Obesity (Option 1), PF-07081532 200 mg Obesity (Option 2), PF-07081532 260 mg Obesity, PF-07081532 260 mg T2DM, PF-07081532 40 mg T2DM, PF-07081532 80 mg Obesity, PF-07081532 80 mg T2DM |
| PlaceboNo drug | Other | Placebo Obesity, Placebo T2DM |
| RybelsusOral Semaglutide | Drug | Rybelsus 14 mg T2DM |
Primary outcome
Placebo-adjusted, Change From Baseline in Percentage of Glycated Hemoglobin (HbA1c) at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Placebo-adjusted, Percent Change From Baseline in Body Weight at Week 32: Cohort 2 (Obesity)
Time frame: Baseline (result closest prior to dosing on Day 1), week 32
Body weight was measured using a calibrated weighing scale.
24 secondary outcomes
Percentage of Participants Who Achieved HbA1C <7% at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Change From Baseline in Fasting Plasma Glucose (FPG) at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Percent Change From Baseline in Body Weight at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Placebo-adjusted, Change From Baseline in HbA1C in the Rybelsus Arm at Week 32: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Percentage of Participants Achieving >=5%, >=10%, and >=15% Body Weight Loss at Week 32 Relative to Baseline: Cohort 2 (Obesity)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Absolute Change From Baseline in Waist Circumference at Week 32: Cohort 2 (Obesity)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Absolute Change From Baseline in Waist-to-hip Ratio at Week 32: Cohort 2 (Obesity)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Change From Baseline in Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) at Week 32: Cohort 2 (Obesity)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Change From Baseline in Homeostatic Model Assessment for Insulin Sensitivity (HOMA-S) at Week 32: Cohort 2 (Obesity)
Time frame: Baseline (result closest prior to dosing on Day 1), Week 32
Number of Participants With Treatment Emergent Adverse Events (TEAEs): Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Treatment Emergent Adverse Events (TEAEs): Cohort 2 (Obesity)
Time frame: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Serious Adverse Events (SAEs): Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Serious Adverse Events (SAEs): Cohort 2 (Obesity)
Time frame: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants Reporting Adverse Events Leading to Permanent Discontinuation From Study Treatment and Study: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants Reporting Adverse Events Leading to Permanent Discontinuation From Study Treatment and Study: Cohort 2 (Obesity)
Time frame: From start of treatment up to minimum of 28 days after last dose of treatment administration (maximum up to Week 28)
Number of Participants With Hypoglycemic Adverse Events (HAE) According to Titration Dose: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Up to week 28
Number of Participants With Hypoglycemic Adverse Events According to Titration Dose: Cohort 2 (Obesity)
Time frame: Up to week 28
Number of Participants With Vital Sign Abnormalities: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Up to week 28
Number of Participants With Vital Sign Abnormalities: Cohort 2 (Obesity)
Time frame: Up to week 28
Number of Participants With Clinical Laboratory Abnormalities: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Up to week 28
Number of Participants With Clinical Laboratory Abnormalities: Cohort 2 (Obesity)
Time frame: Up to week 28
Number of Participants With ECG Abnormalities: Cohort 1 (Type 2 Diabetes Mellitus)
Time frame: Up to week 28
Number of Participants With ECG Abnormalities: Cohort 2 (Obesity)
Time frame: Up to week 28
Number of Participants According to Columbia-Suicide Severity Rating Scale (C-SSRS) Category: Cohort 2 (Obesity) Only
Time frame: Baseline (result closest prior to dosing on Day 1), anytime post-baseline (Up to Week 28)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Aug 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 39952695Kokkorakis M, Chakhtoura M, Rhayem C, Al Rifai J, Ghezzawi M, Valenzuela-Vallejo L, Mantzoros CS. Emerging pharmacotherapies for obesity: A systematic review. Pharmacol Rev. 2025 Jan;77(1):100002. doi: 10.1124/pharmrev.123.001045. Epub 2024 Nov 22.
- Derived from this study: PubMed 39415344Amin NB, Frederich R, Tsamandouras N, Haggag AZ, Schuster T, Zmuda W, Palmer A, Vasas S, Buckley G, Smith TR, DuBrava SJ, Zhu Q, Johnson M. Evaluation of an oral small-molecule glucagon-like peptide-1 receptor agonist, lotiglipron, for type 2 diabetes and obesity: A dose-ranging, phase 2, randomized, placebo-controlled study. Diabetes Obes Metab. 2025 Jan;27(1):215-227. doi: 10.1111/dom.16005. Epub 2024 Oct 16.
- To obtain contact information for a study center near you, click here.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
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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
90 sites in 8 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing PF-07081532 and Rybelsus in people with Diabetes Mellitus and Obesity, run by Pfizer at 90 sites in 8 countries.
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 9 inclusion and 9 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: stopped early, as of the sponsor's last update on 1 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 90 sites in United States, Canada, Japan, Czechia, Hungary and 3 more countries. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 1 Aug 2024). 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?
Placebo-adjusted, Change From Baseline in Percentage of Glycated Hemoglobin (HbA1c) at Week 32: Cohort 1 (Type 2 Diabetes Mellitus) (time frame: Baseline (result closest prior to dosing on Day 1), Week 32). The study lists 2 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 NCT05579977, which also lists 2 linked publications.
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 1 Aug 2024; AzTrials last refreshed its copy on 6 Nov 2026.