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AzTrials

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.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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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
Show all 9Show fewer
  • 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

Other trials in United States

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

Other trials in Canada

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

Other trials in Japan

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

Other trials in Czechia

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

Other trials in Hungary

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

Other trials in Poland

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

Other trials in Bulgaria

Puerto Rico2 sites
  • Latin Clinical Trial Center

    San Juan, 00909

  • GCM Medical Group, PSC - Hato Rey Site

    San Juan, 00917

Other trials in Puerto Rico

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.

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 groups in NCT05579977
Study groupRoleWhat they receive
PF-07081532 20 mg T2DMExperimentalPF-07081532 20 mg daily in T2DM
Receives: Drug: PF-07081532
PF-07081532 40 mg T2DMExperimentalPF-07081532 40 mg daily in T2DM
Receives: Drug: PF-07081532
PF-07081532 80 mg T2DMExperimentalPF-07081532 80 mg daily in T2DM
Receives: Drug: PF-07081532
PF-07081532 160 mg T2DMExperimentalPF-07081532 160 mg daily in T2DM
Receives: Drug: PF-07081532
PF-07081532 260 mg T2DMExperimentalPF-07081532 260 mg daily in T2DM
Receives: Drug: PF-07081532
Placebo T2DMPlacebo comparatorPlacebo daily in T2DM
Receives: Other: Placebo
PF-07081532 80 mg ObesityExperimentalPF-07081532 80 mg daily in Obesity
Receives: Drug: PF-07081532
PF-07081532 140 mg ObesityExperimentalPF-07081532 140 mg daily in Obesity
Receives: Drug: PF-07081532
PF-07081532 200 mg Obesity (Option 1)ExperimentalPF-07081532 200 mg daily in Obesity
Receives: Drug: PF-07081532
PF-07081532 200 mg Obesity (Option 2)ExperimentalPF-07081532 200 mg daily in Obesity
Receives: Drug: PF-07081532
PF-07081532 260 mg ObesityExperimentalPF-07081532 260 mg daily in Obesity
Receives: Drug: PF-07081532
Rybelsus 14 mg T2DMActive comparatorSemaglutide 14 mg daily in T2DM
Receives: Drug: Rybelsus
Placebo ObesityPlacebo comparatorPlacebo in Obesity
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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

  2. 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)
  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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)

  11. 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)

  12. 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)

  13. 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)

  14. 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)

  15. 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)

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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.

  1. First posted14 Oct 2022
  2. Study start27 Oct 2022
  3. Primary completion14 Jul 2023
  4. 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

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)
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
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 39952695
  • Amin 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

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.

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