Summary of safety profileIn the completed phase 2 and phase 3 studies to support the initial registration of dulaglutide 0.75 mgand 1.5 mg, 4,006 patients were exposed to dulaglutide alone or in combination with other glucoselowering medicinal products. The most frequently reported adverse reactions in clinical trials weregastrointestinal, including nausea, vomiting and diarrhoea. In general, these reactions were mild ormoderate in severity and transient in nature. Results from the long-term cardiovascular outcome studywith 4,949 patients randomised to dulaglutide and followed for a median of 5.4 years were consistentwith these findings.
Tabulated list of adverse reactionsThe following adverse reactions have been identified based on evaluation of the full duration of thephase 2 and phase 3 clinical studies, the long-term cardiovascular outcome study and post-marketingreports. The adverse reactions are listed in Table 1 as MedDRA preferred term by system organ classand in order of decreasing incidence (very common: ≥ 1/10; common: ≥ 1/100 to < 1/10; uncommon:≥ 1/1,000 to < 1/100; rare: ≥ 1/10,000 to < 1/1,000; very rare: < 1/10,000 and not known: cannot beestimated from available data). Within each incidence grouping, adverse reactions are presented inorder of decreasing frequency. Frequencies for events have been calculated based on their incidencein the phase 2 and phase 3 registration studies.
Table 1. The frequency of adverse reactions of dulaglutide
System organ Very common Common Uncommon Rare Notclass known
Immune system Hypersensitivity Anaphylacticdisorders reaction#
Metabolism Hypoglycaemia* Hypoglycaemia* Dehydrationand nutrition (when used in (when used asdisorders combination monotherapy orwith insulin, in combinationglimepiride, with metforminmetformin† or plusmetformin plus pioglitazone)glimepiride)
Gastrointestinal Nausea, Decreased Acute Non-disorders diarrhoea, appetite, pancreatitis, mechanicalvomiting†, dyspepsia, delayed intestinalabdominal pain† constipation, gastric obstructionflatulence, emptyingabdominaldistention,gastroesophagealreflux disease,eructation
Hepatobiliary Cholelithiasis,disorders cholecystitis
Skin and Angioedema#subcutaneoustissue disorders
General Fatigue Injection sitedisorders and reactions$administrationsite conditions
Investigations Sinustachycardia, firstdegreeatrioventricularblock (AVB)# From post-marketing reports.
* Documented, symptomatic hypoglycaemia with blood glucose ≤ 3.9 mmol/L† For dulaglutide 0.75 mg, adverse reaction met frequency for next lower incidence grouping.$ The frequency seen in a paediatric study was common; 3.9 % (2 patients) in the dulaglutide 0.75 mggroup, 3.8 % (2 patients) in the dulaglutide 1.5 mg group and 2 % (1 patient) in the placebo group. Allevents were mild to moderate in severity.
Description of selected adverse reactionsHypoglycaemiaWhen dulaglutide 0.75 mg and 1.5 mg were used as monotherapy or in combination with metforminalone or metformin and pioglitazone, the incidences of documented symptomatic hypoglycaemia were5.9 % to 10.9 % and the rates were 0.14 to 0.62 events/patient/year, and no episodes of severehypoglycaemia were reported.
The incidences of documented symptomatic hypoglycaemia when dulaglutide 0.75 mg and 1.5 mg,respectively, were used in combination with a sulphonylurea and metformin were 39.0 % and 40.3 %and the rates were 1.67 and 1.67 events/patient/year. The severe hypoglycaemia event incidenceswere 0 % and 0.7 %, and rates were 0.00 and 0.01 events/patient/year for each dose, respectively. Theincidence of documented symptomatic hypoglycaemia when dulaglutide 1.5 mg was used withsulphonylurea alone was 11.3 % and the rate was 0.90 events/patient/year, and there were no episodesof severe hypoglycaemia.
The incidence of documented symptomatic hypoglycaemia when dulaglutide 1.5 mg was used incombination with insulin glargine was 35.3 % and the rate was 3.38 events/patient/year. The severehypoglycaemia event incidence was 0.7 % and the rate was 0.01 events/patient/year.
The incidences when dulaglutide 0.75 mg and 1.5 mg, respectively, were used in combination withprandial insulin were 85.3 % and 80.0 % and rates were 35.66 and 31.06 events/patient/year. Thesevere hypoglycaemia event incidences were 2.4 % and 3.4 %, and rates were 0.05 and0.06 events/patient/year.
In a phase 3 study through to week 52, when dulaglutide 1.5 mg, 3 mg and 4.5 mg were used incombination with metformin, the incidences of documented symptomatic hypoglycaemia were 3.1 %,2.4 % and 3.1 %, respectively, and rates were 0.07, 0.05 and 0.07 events/patient/year; one episode ofsevere hypoglycaemia was reported with dulaglutide 1.5 mg and 4.5 mg, respectively.
Gastrointestinal adverse reactionsCumulative reporting of gastrointestinal events up to 104 weeks with dulaglutide 0.75 mg and 1.5 mg,respectively, included nausea (12.9 % and 21.2 %), diarrhoea (10.7 % and 13.7 %) and vomiting(6.9 % and 11.5 %). These were typically mild or moderate in severity and were reported to peakduring the first 2 weeks of treatment and rapidly declined over the next 4 weeks, after which the rateremained relatively constant.
In a phase 3 study with 1.5 mg, 3 mg and 4.5 mg dulaglutide doses respectively, cumulative reportingof gastrointestinal events through to 52 weeks included nausea (14.2 %, 16.1 % and 17.3 %),diarrhoea (7.7 %, 12.0 % and 11.6 %) and vomiting (6.4 %, 9.1 % and 10.1 %). In clinicalpharmacology studies conducted in patients with type 2 diabetes mellitus up to 6 weeks, the majorityof gastrointestinal events were reported during the first 2-3 days after the initial dose and declinedwith subsequent doses.
Acute pancreatitisThe incidence of acute pancreatitis in phase 2 and 3 registration studies was 0.07 % for dulaglutidecompared to 0.14 % for placebo and 0.19 % for comparators with or without additional backgroundantidiabetic therapy. Acute pancreatitis and pancreatitis have also been reported in the post-marketingsetting.
Pancreatic enzymes
Dulaglutide is associated with mean increases from baseline in pancreatic enzymes (lipase and/orpancreatic amylase) of 11 % to 21 % (see section 4.4). In the absence of other signs and symptoms ofacute pancreatitis, elevations in pancreatic enzymes alone are not predictive of acute pancreatitis.
Heart rate increaseSmall mean increases in heart rate of 2 to 4 beats per minute (bpm) and a 1.3 % and 1.4 % incidenceof sinus tachycardia, with a concomitant increase from baseline ≥ 15 bpm, were observed withdulaglutide 0.75 mg and 1.5 mg, respectively.
In a phase 3 study with 1.5 mg, 3 mg and 4.5 mg dulaglutide doses, the incidence of sinustachycardia, with a concomitant increase from baseline ≥ 15 bpm, was 2.6 %, 1.9 % and 2.6 %respectively. Mean increases in heart rate of 1 - 4 beats per minute (bpm) were observed.
First degree AV block/PR interval prolongation
Small mean increases from baseline in PR interval of 2 to 3 msec and a 1.5 % and 2.4 % incidence offirst-degree AV block were observed with dulaglutide 0.75 mg and 1.5 mg, respectively.
In a phase 3 study with 1.5 mg, 3 mg and 4.5 mg dulaglutide doses, the incidence of first-degree AVblock was 1.2 %, 3.8 % and 1.7 % respectively. Mean increases from baseline in PR interval of3 - 5 msec were observed.
ImmunogenicityIn registration studies, treatment with dulaglutide was associated with a 1.6 % incidence of treatmentemergent dulaglutide anti-drug antibodies, indicating that the structural modifications in the GLP-1and modified IgG4 parts of the dulaglutide molecule, together with high homology with native GLP-1and native IgG4, minimise the risk of immune response against dulaglutide. Patients with dulaglutideanti-drug antibodies generally had low titres, and although the number of patients developingdulaglutide anti-drug antibodies was low, examination of the phase 3 data revealed no clear impact ofdulaglutide anti-drug antibodies on changes in HbA1c. None of the patients with systemichypersensitivity developed dulaglutide anti-drug antibodies.
HypersensitivityIn the phase 2 and phase 3 registration studies, systemic hypersensitivity events (e.g., urticaria,edema) were reported in 0.5 % of patients receiving dulaglutide. Cases of anaphylactic reaction havebeen rarely reported with marketed use of dulaglutide.
Injection site reactionsInjection site adverse events were reported in 1.9 % of patients receiving dulaglutide. Potentiallyimmune-mediated injection site adverse events (e.g., rash, erythema) were reported in 0.7 % ofpatients and were usually mild.
Discontinuation due to an adverse eventIn studies of 26 weeks duration, the incidence of discontinuation due to adverse events was 2.6 %(0.75 mg) and 6.1 % (1.5 mg) for dulaglutide versus 3.7 % for placebo. Through the full studyduration (up to 104 weeks), the incidence of discontinuation due to adverse events was 5.1 %(0.75 mg) and 8.4 % (1.5 mg) for dulaglutide. The most frequent adverse reactions leading todiscontinuation for 0.75 mg and 1.5 mg dulaglutide, respectively, were nausea (1.0 %, 1.9 %),diarrhoea (0.5 %, 0.6 %), and vomiting (0.4 %, 0.6 %), and were generally reported within the first4 - 6 weeks.
In a phase 3 study with 1.5 mg, 3 mg and 4.5 mg dulaglutide doses, the incidence of discontinuationdue to adverse events through 52 weeks was 6.0 % (1.5 mg), 7.0 % (3 mg) and 8.5 % (4.5 mg). Themost frequent adverse reactions leading to discontinuation for dulaglutide 1.5 mg, 3 mg and 4.5 mg,respectively, were nausea (1.3 %, 1.3 %, 1.5 %), diarrhoea (0.2 %, 1.0 %, 1.0 %), and vomiting(0.0 %, 0.8 %, 1.3 %).
Dulaglutide doses of 3 mg and 4.5 mg
The safety profile in patients treated with dulaglutide 3 mg and 4.5 mg once weekly is consistent withthat described above for dulaglutide doses of 0.75 mg and 1.5 mg once weekly.
Paediatric populationThe safety profile in paediatric patients aged 10 years and above treated with dulaglutide 0.75 mg and1.5 mg once-weekly is comparable with that described above for adult patients.
The immunogenicity profile in paediatric patients treated with dulaglutide is consistent with thatdescribed above for adult patients. In the paediatric study, 2.1 % and 4.0 % of patients treated withplacebo and dulaglutide respectively developed treatment emergent dulaglutide anti-drug antibodies.
Reporting of suspected adverse reactionsReporting suspected adverse reactions after authorisation of the medicinal product is important. Itallows continued monitoring of the benefit/risk balance of the medicinal product. Healthcareprofessionals are asked to report any suspected adverse reactions via the national reporting systemlisted in Appendix V.
Pharmacotherapeutic group: Drugs used in diabetes, blood glucose lowering drugs, excl. insulins,
ATC code: A10BJ05
Mechanism of actionDulaglutide is a long-acting glucagon-like peptide 1 (GLP-1) receptor agonist. The molecule consistsof 2 identical disulfide-linked chains, each containing a modified human GLP-1 analogue sequencecovalently linked to a modified human immunoglobulin G4 (IgG4) heavy chain fragment (Fc) by asmall peptide linker. The GLP-1 analog portion of dulaglutide is approximately 90 % homologous tonative human GLP-1 (7-37). Native GLP-1 has a half-life of 1.5 - 2 minutes due to degradation by
DPP-4 and renal clearance. In contrast to native GLP-1, dulaglutide is resistant to degradation by
DPP-4, and has a large size that slows absorption and reduces renal clearance. These engineeringfeatures result in a soluble formulation and a prolonged half-life of 4.7 days, which makes it suitablefor once-weekly subcutaneous administration. In addition, the dulaglutide molecule was engineered toprevent the Fcγ receptor-dependent immune response and to reduce its immunogenic potential.
Dulaglutide exhibits several antihyperglycaemic actions of GLP-1. In the presence of elevated glucoseconcentrations, dulaglutide increases intracellular cyclic AMP (cAMP) in pancreatic beta cells leadingto insulin release. Dulaglutide suppresses glucagon secretion which is known to be inappropriatelyelevated in patients with type 2 diabetes. Lower glucagon concentrations lead to decreased hepaticglucose output. Dulaglutide also slows gastric emptying.
Pharmacodynamic effectsDulaglutide improves glycaemic control through the sustained effects of lowering fasting, pre-mealand postprandial glucose concentrations in patients with type 2 diabetes starting after the firstdulaglutide administration and is sustained throughout the once weekly dosing interval.
A pharmacodynamic study with dulaglutide demonstrated, in patients with type 2 diabetes, arestoration of first phase insulin secretion to a level that exceeded levels observed in healthy subjectson placebo and improved second phase insulin secretion in response to an intravenous bolus ofglucose. In the same study, a single 1.5 mg dose of dulaglutide appeared to increase maximal insulinsecretion from the β-cells, and to enhance β-cell function in subjects with type 2 diabetes mellitus ascompared with placebo.
Consistent with the pharmacokinetic profile, dulaglutide has a pharmacodynamic profile suitable foronce weekly administration (see section 5.2).
Clinical efficacy and safetyGlycaemic controlThe safety and efficacy of dulaglutide were evaluated in ten randomised, controlled, phase 3 trialsinvolving 8,035 patients with type 2 diabetes. Of these, 1,644 were ≥ 65 years of which 174 were≥ 75 years. These studies included 5,650 dulaglutide treated patients, of whom 1,558 were treatedwith Trulicity 0.75 mg weekly, 2,862 were treated with Trulicity 1.5 mg weekly, 616 were treatedwith Trulicity 3 mg weekly and 614 were treated with Trulicity 4.5 mg weekly. In all studies,dulaglutide produced clinically significant improvements in glycaemic control as measured byglycosylated haemoglobin A1c (HbA1c).
MonotherapyDulaglutide was studied in a 52-week active controlled monotherapy study in comparison tometformin. Trulicity 1.5 mg and 0.75 mg were superior to metformin (1500 - 2000 mg/day) in thereduction in HbA1c and a significantly greater proportion of patients reached an HbA1c target of< 7.0 % and ≤ 6.5 % with Trulicity 1.5 mg and Trulicity 0.75 mg compared to metformin at 26 weeks.
Table 2. Results of a 52-week active controlled monotherapy study with two doses of dulaglutide incomparison to metformin
Baseline Mean Patients at target Change in Change in
HbA1c change in HbA1c FBG body weight
HbA1c(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b26 weeks
Dulaglutide 1.5 mgonce weekly 7.63 -0.78†† 61.5# 46.0## -1.61 -2.29(n = 269)
Dulaglutide 0.75 mgonce weekly 7.58 -0.71†† 62.6# 40.0# -1.46 -1.36#(n = 270)
Metformin1500 - 2000 mg/day 7.60 -0.56 53.6 29.8 -1.34 -2.22(n = 268)52 weeks
Dulaglutide 1.5 mgonce weekly 7.63 -0.70†† 60.0# 42.3## -1.56# -1.93(n = 269)
Dulaglutide 0.75 mgonce weekly 7.58 -0.55† 53.2 34.7 -1.00 -1.09#(n = 270)
Metformin1500 - 2000 mg/day 7.60 -0.51 48.3 28.3 -1.15 -2.20(n = 268)† multiplicity adjusted 1-sided p-value < 0.025, for noninferiority; †† multiplicity adjusted 1-sidedp-value < 0.025, for superiority of dulaglutide to metformin, assessed for HbA1c only# p < 0.05, ## p < 0.001 dulaglutide treatment group compared to metformina HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
FBG = fasting blood glucose; DCCT = Diabetes Control and Complications Trial; IFCC =
International Federation of Clinical Chemistry and Laboratory Medicine
The rate of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and 0.75 mg, andmetformin were 0.62, 0.15, and 0.09 episodes/patient/year, respectively. No cases of severehypoglycaemia were observed.
Combination therapy with metformin
The safety and efficacy of dulaglutide was investigated in a placebo and active controlled (sitagliptin100 mg daily) study of 104 weeks duration, all in combination with metformin. Treatment with
Trulicity 1.5 mg and 0.75 mg resulted in a superior reduction in HbA1c compared to sitagliptin at52 weeks, accompanied by a significantly greater proportion of patients achieving HbA1c targets of< 7.0 % and ≤ 6.5 %. These effects were sustained to the end of the study (104 weeks).
Table 3. Results of a 104-week placebo and active controlled study with two doses of dulaglutide incomparison to sitagliptin
Baseline Mean Patients at target Change in Change in
HbA1c change in HbA1c FBG body
HbA1c weight(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b26 weeks
Dulaglutide 1.5 mgonce weekly 8.12 -1.22‡‡,## 60.9**,## 46.7**,## -2.38**,## -3.18**,##(n = 304)
Dulaglutide 0.75 mgonce weekly 8.19 -1.01‡‡,## 55.2**,## 31.0**,## -1.97**,## -2.63**,##(n = 302)
Placebo (n = 177) 8.10 0.03 21.0 12.5 -0.49 -1.47
Sitagliptin100 mg once daily 8.09 -0.61 37.8 21.8 -0.97 -1.46(n = 315)52 weeks
Dulaglutide 1.5 mgonce weekly 8.12 -1.10†† 57.6## 41.7## -2.38## -3.03##(n = 304)
Dulaglutide 0.75 mgonce weekly 8.19 -0.87†† 48.8## 29.0## -1.63## -2.60##(n = 302)
Sitagliptin 100 mgonce daily (n = 315) 8.09 -0.39 33.0 19.2 -0.90 -1.53104 weeks
Dulaglutide 1.5 mgonce weekly 8.12 -0.99†† 54.3## 39.1## -1.99## -2.88##(n = 304)
Dulaglutide 0.75 mgonce weekly 8.19 -0.71†† 44.8## 24.2## -1.39## -2.39(n = 302)
Sitagliptin 100 mgonce daily (n = 315) 8.09 -0.32 31.1 14.1 -0.47 -1.75†† multiplicity adjusted 1-sided p-value < 0.025, for superiority of dulaglutide compared to sitagliptin,assessed only for HbA1c at 52 and 104 weeks‡‡ multiplicity adjusted 1-sided p-value < 0.001 for superiority of dulaglutide compared to placebo,assessed for HbA1c only
** p < 0.001 dulaglutide treatment group compared to placebo## p < 0.001 dulaglutide treatment group compared to sitagliptina HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and 0.75 mg, andsitagliptin were 0.19, 0.18, and 0.17 episodes/patient/year, respectively. No cases of severehypoglycaemia with dulaglutide were observed.
The safety and efficacy of dulaglutide was also investigated in an active controlled study (liraglutide1.8 mg daily) of 26 weeks duration, both in combination with metformin. Treatment with Trulicity1.5 mg resulted in similar lowering of HbA1c and patients achieving HbA1c targets of < 7.0 % and≤ 6.5 % compared to liraglutide.
Table 4. Results of a 26-week active controlled study of one dose of dulaglutide in comparison toliraglutide
Baseline Mean Patients at target Change in Change in
HbA1c change HbA1c FBG bodyin weight
HbA1c(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b26 weeks
Dulaglutide 1.5 mgonce weekly 8.06 -1.42‡ 68.3 54.6 -1.93 -2.90#(n = 299)
Liraglutide+ 1.8 mg -1.36daily (n = 300) 8.05 67.9 50.9 -1.90 -3.61‡ 1-sided p-value p < 0.001, for noninferiority of dulaglutide compared to liraglutide, assessed onlyfor HbA1c.
# p < 0.05 dulaglutide treatment group compared to liraglutide.+ Patients randomised to liraglutide were initiated at a dose of 0.6 mg/day. After Week 1, patientswere up-titrated to 1.2 mg/day and then at Week 2 to 1.8 mg/day.a HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
The rate of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg was0.12 episodes/patient/year and with liraglutide was 0.29 episodes/patient/year. No cases of severehypoglycaemia were observed.
Combination therapy with metformin and sulphonylurea
In an active controlled study of 78 weeks duration, dulaglutide was compared to insulin glargine, bothon a background of metformin and a sulphonylurea. At 52 weeks, Trulicity 1.5 mg demonstratedsuperior lowering in HbA1c to insulin glargine which was maintained at 78 weeks; whereas loweringin HbA1c with Trulicity 0.75 mg was non-inferior to insulin glargine. With Trulicity 1.5 mg asignificantly higher percentage of patients reached a target HbA1c of < 7.0 % or ≤ 6.5 % at 52 and78 weeks compared to insulin glargine.
Table 5. Results of a 78-week active controlled study with two doses of dulaglutide in comparison toinsulin glargine
Baseline Mean Patients at target Change in Change in
HbA1c change HbA1c FBG bodyin weight
HbA1c(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b52 weeks
Dulaglutide 1.5 mgonce weekly 8.18 -1.08†† 53.2## 27.0## -1.50 -1.87##(n = 273)
Dulaglutide 0.75 mgonce weekly 8.13 -0.76† 37.1 22.5# -0.87## -1.33##(n = 272)
Insulin glargine+once daily (n = 262) 8.10 -0.63 30.9 13.5 -1.76 1.4478 weeks
Dulaglutide 1.5 mgonce weekly 8.18 -0.90†† 49.0## 28.1## -1.10# -1.96##(n = 273)
Dulaglutide 0.75 mgonce weekly 8.13 -0.62† 34.1 22.1 -0.58## -1.54##(n = 272)
Insulin glargine+once daily (n = 262) 8.10 -0.59 30.5 16.6 -1.58 1.28† multiplicity adjusted 1-sided p-value < 0.025, for noninferiority; †† multiplicity adjusted 1-sidedp-value < 0.025, for superiority of dulaglutide to insulin glargine, assessed for HbA1c only# p < 0.05, ## p < 0.001 dulaglutide treatment group compared to insulin glargine+ Insulin glargine doses were adjusted utilising an algorithm with a fasting plasma glucose target of< 5.6 mmol/La HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and 0.75 mg, andinsulin glargine were 1.67, 1.67, and 3.02 episodes/patient/year, respectively. Two cases of severehypoglycaemia were observed with dulaglutide 1.5 mg and two cases of severe hypoglycaemia wereobserved with insulin glargine.
Combination therapy with sulphonylurea
The safety and efficacy of dulaglutide as add-on to a sulphonylurea was investigated in a placebocontrolled study of 24 weeks duration. Treatment with Trulicity 1.5 mg in combination withglimepiride resulted in a statistically significant reduction in HbA1c compared to placebo withglimepiride at 24 weeks. With Trulicity 1.5 mg, a significantly higher percentage of patients reached atarget HbA1c of < 7.0 % and ≤ 6.5 % at 24 weeks compared to placebo.
Table 6. Results of a 24-week placebo controlled study of dulaglutide as add-on to glimepiride
Baseline Mean Patients at target Change in Change in
HbA1c change HbA1c FBG bodyin weight
HbA1c(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b24 weeks
Dulaglutide 1.5 mgonce weekly 8.39 -1.38‡‡ 55.3‡‡ 40.0** -1.70‡‡ -0.91(n = 239)
Placebo (n = 60) 8.39 -0.11 18.9 9.4 0.16 -0.24‡‡ p < 0.001 for superiority of dulaglutide compared to placebo, with overall type I error controlled
** p < 0.001 for dulaglutide treatment group compared to placeboa HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and placebo were 0.90and 0.04 episodes/patient/year, respectively. No cases of severe hypoglycaemia were observed fordulaglutide or placebo.
Combination therapy with SGLT2 inhibitor with or without metformin
The safety and efficacy of dulaglutide as add-on to sodium-glucose co-transporter 2 inhibitor(SGLT2i) therapy (96 % with and 4 % without metformin) were investigated in a placebo controlledstudy of 24 weeks duration. Treatment with Trulicity 0.75 mg or Trulicity 1.5 mg in combination with
SGLT2i therapy resulted in a statistically significant reduction in HbA1c compared to placebo with
SGLT2i therapy at 24 weeks. With both Trulicity 0.75 mg and 1.5 mg, a significantly higherpercentage of patients reached a target HbA1c of < 7.0 % and ≤ 6.5 % at 24 weeks compared toplacebo.
Table 7. Results of a 24-week placebo controlled study of dulaglutide as add-on to SGLT2i therapy
Baseline Mean Patients at target Change in Change in
HbA1c change HbA1c FBG bodyin weight
HbA1c(%) (%) < 7. 0%^ ≤ 6.5 % (mmol/L) (kg)(%)a (%)b24 weeks
Dulaglutide 0.75 mgonce weekly 8.05 -1.19‡‡ 58.8‡‡ 38.9** -1.44 -2.6(n = 141)
Dulaglutide 1.5 mgonce weekly 8.04 -1.33‡‡ 67.4‡‡ 50.8** -1.77 -3.1(n = 142)
Placebo (n = 140) 8.05 -0.51 31.2 14.6 -0.29 -2.3‡‡ p < 0.001 for superiority of dulaglutide compared to placebo, with overall type I error controlled
** p < 0.001 for dulaglutide treatment group compared to placebo^ Patients who withdrew from randomised treatment before 24 weeks were considered as not meetingthe targeta HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 0.75 mg, dulaglutide 1.5 mg,and placebo were 0.15, 0.16 and 0.12 episodes/patient/year, respectively. One patient reported severehypoglycaemia with dulaglutide 0.75 mg in combination with SGLT2i therapy and none withdulaglutide 1.5 mg or placebo.
Combination therapy with metformin and pioglitazone
In a placebo and active (exenatide twice daily) controlled study, both in combination with metforminand pioglitazone, Trulicity 1.5 mg and 0.75 mg demonstrated superiority for HbA1c reduction incomparison to placebo and exenatide, accompanied by a significantly a greater percentage of patientsachieving HbA1c targets of < 7.0 % or ≤ 6.5 %
Table 8. Results of a 52-week active controlled study with two doses of dulaglutide in comparison toexenatide
Baseline Mean Patients at target Change in Change in
HbA1c change in HbA1c FBG body
HbA1c weight(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b26 weeks
Dulaglutide 1.5 mgonce weekly 8.10 -1.51‡‡,†† 78.2**,## 62.7**,## -2.36**,## -1.30**(n = 279)
Dulaglutide 0.75 mgonce weekly 8.05 -1.30‡‡/†† 65.8**/## 53.2**/## -1.90**/## 0.20 */##(n = 280)
Placebo (n = 141) 8.06 -0.46 42.9 24.4 -0.26 1.24
Exenatide+10 mcg twice daily 8.07 -0.99 52.3 38.0 -1.35 -1.07(n = 276)52 weeks
Dulaglutide 1.5 mgonce weekly 8.10 -1.36†† 70.8## 57.2## -2.04## -1.10(n = 279)
Dulaglutide 0.75 mgonce weekly 8.05 -1.07†† 59.1# 48.3## -1.58# 0.44#(n = 280)
Exenatide+10 mcg twice daily 8.07 -0.80 49.2 34.6 -1.03 -0.80(n = 276)†† multiplicity adjusted 1-sided p-value < 0.025, for superiority of dulaglutide to exenatide, assessedfor HbA1c only‡‡ multiplicity adjusted 1-sided p-value < 0.001 for superiority of dulaglutide compared to placebo,assessed for HbA1c only
* p < 0.05, **p < 0.001 dulaglutide treatment group compared to placebo# p < 0.05, ##p < 0.001 dulaglutide treatment group compared to exenatide+ Exenatide dose was 5 mcg twice daily for first 4 weeks and 10 mcg twice daily thereaftera HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and 0.75 mg, andexenatide twice daily were 0.19, 0.14, and 0.75 episodes/patient/year, respectively. No cases of severehypoglycaemia were observed for dulaglutide and two cases of severe hypoglycaemia were observedwith exenatide twice daily.
Combination therapy with titrated basal insulin, with or without metformin
In a 28-week placebo controlled study, Trulicity1.5 mg was compared to placebo as add-on to titratedbasal insulin glargine (88 % with and 12 % without metformin) to evaluate the effect on glycaemiccontrol and safety. To optimise the insulin glargine dose, both groups were titrated to a target fastingserum glucose of < 5.6 mmol/L. The mean baseline dose of insulin glargine was 37 units/day forpatients receiving placebo and 41 units/day for patients receiving Trulicity 1.5 mg. The initial insulinglargine doses in patients with HbA1c < 8.0 % were reduced by 20 %. At the end of the 28-weektreatment period the dose was 65 units/day and 51 units/day, for patients receiving placebo and
Trulicity 1.5 mg, respectively. At 28 weeks, treatment with once weekly Trulicity 1.5 mg resulted in astatistically significant reduction in HbA1c compared to placebo and a significantly greaterpercentage of patients achieving HbA1c targets of < 7.0 % and ≤ 6.5 % (Table 9).
Table 9. Results of a 28-week study of dulaglutide compared to placebo as add-on to titrated insulinglargine
Baseline Mean Patients at target Change in Change in
HbA1c change in HbA1c FBG body
HbA1c weight(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b28 weeks
Dulaglutide 1.5 mgonce weekly and ‡‡insulin glargine 8.41 -1.44 66.7‡‡ 50.0** -2.48‡‡ -1.91‡‡(n = 150)
Placebo onceweekly and insulin 8.32 -0.67 33.3 16.7 -1.55 0.50glargine (n = 150)‡‡ p < 0.001 for superiority of dulaglutide compared to placebo, overall type I error controlled
** p < 0.001 dulaglutide treatment group compared to placeboa HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and insulin glarginewere 3.38 episodes/patient/year compared to placebo and insulin glargine 4.38 episodes/patient/year.
One patient reported severe hypoglycaemia with dulaglutide 1.5 mg in combination with insulinglargine and none with placebo.
Combination therapy with prandial insulin with or without metformin
In this study, patients on 1 or 2 insulin injections per day prior to study entry, discontinued theirprestudy insulin regimen and were randomised to dulaglutide once weekly or insulin glargine oncedaily, both in combination with prandial insulin lispro three times daily, with or without metformin.
At 26 weeks, both Trulicity 1.5 mg and 0.75 mg were superior to insulin glargine in lowering of
HbA1c and this effect was sustained at 52 weeks. A greater percentage of patients achieved HbA1ctargets of < 7.0 % or ≤ 6.5 % at 26 weeks and < 7.0 % at 52 weeks than with insulin glargine.
Table 10. Results of a 52-week active controlled study with two doses of dulaglutide in comparison toinsulin glargine
Baseline Mean Patients at target Change in Change in
HbA1c change in HbA1c FBG body
HbA1c weight(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b26 weeks
Dulaglutide 1.5 mgonce weekly 8.46 -1.64†† 67.6# 48.0# -0.27## -0.87##(n = 295)
Dulaglutide 0.75 mgonce weekly 8.40 -1.59†† 69.0# 43.0 0.22## 0.18##(n = 293)
Insulin glargine+once daily (n = 296) 8.53 -1.41 56.8 37.5 -1.58 2.3352 weeks
Dulaglutide 1.5 mgonce weekly 8.46 -1.48†† 58.5# 36.7 0.08## -0.35##(n = 295)
Dulaglutide 0.75 mgonce weekly 8.40 -1.42†† 56.3 34.7 0.41## 0.86##(n = 293)
Insulin glargine+once daily (n = 296) 8.53 -1.23 49.3 30.4 -1.01 2.89†† multiplicity adjusted 1-sided p-value < 0.025, for superiority of dulaglutide to insulin glargine,assessed for HbA1c only# p < 0.05, ## p < 0.001 dulaglutide treatment group compared to insulin glargine+ Insulin glargine doses were adjusted utilizing an algorithm with a fasting plasma glucose target of< 5.6 mmol/La HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and 0.75 mg, andinsulin glargine were 31.06, 35.66, and 40.95 episodes/patient/year, respectively. Ten patientsreported severe hypoglycaemia with dulaglutide 1.5 mg, seven with dulaglutide 0.75 mg, and fifteenwith insulin glargine.
Fasting blood glucose
Treatment with dulaglutide resulted in significant reductions from baseline in fasting blood glucose.
The majority of the effect on fasting blood glucose concentrations occurred by 2 weeks. Theimprovement in fasting glucose was sustained through the longest study duration of 104 weeks.
Postprandial glucose
Treatment with dulaglutide resulted in significant reductions in mean post prandial glucose frombaseline (changes from baseline to primary time point -1.95 mmol/L to -4.23 mmol/L).
Beta-cell function
Clinical studies with dulaglutide have indicated enhanced beta-cell function as measured byhomeostasis model assessment (HOMA2-%B). The durability of effect on beta-cell function wasmaintained through the longest study duration of 104 weeks.
Body weightTrulicity 1.5 mg was associated with sustained weight reduction over the duration of studies (frombaseline to final time point -0.35 kg to -2.90 kg). Changes in body weight with Trulicity 0.75 mgranged from 0.86 kg to -2.63 kg. Reduction in body weight was observed in patients treated withdulaglutide irrespective of nausea, though the reduction was numerically larger in the group withnausea.
Patient reported outcomesDulaglutide significantly improved total treatment satisfaction compared to exenatide twice daily. Inaddition, there was significantly lower perceived frequency of hyperglycaemia and hypoglycaemiacompared to exenatide twice daily.
Blood pressureThe effect of dulaglutide on blood pressure as assessed by Ambulatory Blood Pressure Monitoringwas evaluated in a study of 755 patients with type 2 diabetes. Treatment with dulaglutide providedreductions in systolic blood pressure (SBP) (-2.8 mmHg difference compared to placebo) at 16 weeks.
There was no difference in diastolic blood pressure (DBP). Similar results for SBP and DBP weredemonstrated at the final 26 week time point of the study.
Cardiovascular Evaluation
Meta-analysis of phase 2 and 3 studies
In a meta-analysis of phase 2 and 3 registration studies, a total of 51 patients (dulaglutide:26 [N = 3,885]; all comparators: 25 [N = 2,125]) experienced at least one cardiovascular (CV) event(death due to CV causes, nonfatal MI, nonfatal stroke, or hospitalisation for unstable angina). Theresults showed that there was no increase in CV risk with dulaglutide compared with control therapies(HR: 0.57; CI: [0.30, 1.10]).
Cardiovascular outcome study
The Trulicity long-term cardiovascular outcome study was a placebo-controlled, double-blind clinicaltrial. Type 2 diabetes patients were randomly allocated to either Trulicity 1.5 mg (4,949) or placebo(4,952) both in addition to standards of care for type 2 diabetes (the 0.75 mg dose was notadministered in this study). The median study follow-up time was 5.4 years.
The mean age was 66.2 years, the mean BMI was 32.3 kg/m², and 46.3 % of patients were female.
There were 3,114 (31.5 %) patients with established CV disease. The median baseline HbA1c was7.2 %. The Trulicity treatment arm included patients ≥ 65 years (n = 2,619) and ≥ 75 years (n = 484),and patients with mild (n = 2,435), moderate (n = 1,031) or severe (n = 50) renal impairment.
The primary endpoint was the time from randomisation to first occurrence of any major adversecardiovascular events (MACE): CV death, non-fatal myocardial infarction, or non-fatal stroke.
Trulicity was superior in preventing MACE compared to placebo (Figure 1). Each MACE componentcontributed to the reduction of MACE, as shown in Figure 2.
Figure 1. Kaplan-Meier plot of time to first occurrence of the composite outcome: CV death, non-fatalmyocardial infarction or non-fatal stroke, in the dulaglutide long-term cardiovascular outcome study
Figure 2. Forest plot of analyses of individual cardiovascular event types, all cause death, andconsistency of effect across subgroups for the primary endpoint
A significant and sustained reduction in HbA1c levels from baseline to month 60 was observed with
Trulicity vs placebo, in addition to standard of care (-0.29 % vs 0.22 %; estimated treatmentdifference -0.51 % [-0.57; -0.45]; p < 0.001). There were significantly fewer patients in the Trulicitygroup who received an additional glycaemic intervention compared to placebo (Trulicity: 2,086[42.2 %]; placebo: 2,825 [57.0 %]; p < 0.001).
Combination of dulaglutide 4.5 mg, 3 mg and 1.5 mg therapy with metformin
The safety and efficacy of dulaglutide 3 mg and 4.5 mg once weekly compared to dulaglutide 1.5 mgonce weekly as add-on to metformin were investigated in a 52 weeks study. At 36 weeks, both
Trulicity 3 mg and 4.5 mg were superior to Trulicity 1.5 mg in lowering of HbA1c and body weight.
A greater percentage of patients achieved HbA1c targets of < 7.0 % or ≤ 6.5 % at 36 weeks with
Trulicity 3 mg and Trulicity 4.5 mg. The proportions of patients that achieved ≥ 5 % body weightreduction from baseline were 31 %, 40 % and 49 % for Trulicity 1.5 mg, 3 mg and 4.5 mgrespectively. These effects were sustained through 52 weeks.
Table 11. Results of an active controlled study comparing three doses of dulaglutide
Baseline Mean Patients at target Change Change
HbA1c change in HbA1c in FBG in body
HbA1c weight(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg)(%)a (%)b36 weeks
Dulaglutide 1.5 mgonce weekly 8.64 -1.53 57.0 38.1 -2.45 -3.1(n = 612)
Dulaglutide 3 mgonce weekly 8.63 -1.71# 64.7# 48.4‡‡ -2.66 -4.0#(n = 616)
Dulaglutide 4.5 mgonce weekly 8.64 -1.87## 71.5# 51.7‡‡ -2.90# -4.7##(n = 614)52 weeks
Dulaglutide 1.5 mgonce weekly 8.64 -1.52 58.6 40.4 -2.39 -3.5(n = 612)
Dulaglutide 3 mgonce weekly 8.63 -1.71‡ 65.4‡ 49.2‡ -2.70‡ -4.3‡(n = 616)
Dulaglutide 4.5 mgonce weekly 8.64 -1.83‡‡ 71.7‡‡ 51.3‡‡ -2.92‡‡ -5.0‡‡(n = 614)# p < 0.05, ## p < 0.001 for superiority compared to dulaglutide 1.5 mg, adjusted p-values with overalltype I error controlled‡ p < 0.05, ‡‡ p < 0.001 compared to dulaglutide 1.5 mga HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)
Results target the on-treatment effect (analysis is based on mixed models for repeated measurementsor longitudinal logistic regression).
Figure 3. Mean change in HbA1c (%) and body weight (kg) from baseline to week 52
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg, 3 mg and 4.5 mg were0.07, 0.05 and 0.07 episodes/patient/year respectively. One patient reported severe hypoglycaemiawith dulaglutide 1.5 mg, no patient with dulaglutide 3 mg, and one patient with dulaglutide 4.5 mg.
Special populationsUse in patients with renal impairment
In a 52 week study, Trulicity 1.5 mg and 0.75 mg were compared to titrated insulin glargine as add-onto prandial insulin lispro to evaluate the effect on glycaemic control and safety of patients withmoderate to severe chronic kidney disease (eGFR [by CKD-EPI] < 60 and ≥ 15 mL/min/1.73 m2).
Patients discontinued their pre-study insulin regimen at randomisation. At baseline, overall meaneGFR was 38 mL/min/1.73 m2, 30 % of patients had eGFR < 30 mL/min/1.73 m2.
At 26 weeks, both Trulicity 1.5 mg and 0.75 mg were non-inferior to insulin glargine in lowering of
HbA1c and this effect was sustained at 52 weeks. A similar percentage of patients achieved HbA1ctargets of < 8.0 % at 26 and 52 weeks with both dulaglutide doses as well as insulin glargine.
Table 12. Results of a 52-week active controlled study with two doses of dulaglutide in comparison toinsulin glargine (in patients with moderate to severe chronic kidney disease)
Baseline Mean Patients at Change in Change in
HbA1c change in target FBG body weight
HbA1c HbA1c(%) (%) < 8.0 % (%)a (mmol/L) (kg)26 weeks
Dulaglutide 1.5 mgonce weekly 8.60 -1.19† 78.3 1.28## -2.81##(n = 192)
Dulaglutide 0.75 mgonce weekly 8.58 -1.12† 72.6 0.98## -2.02##(n = 190)
Insulin glargine+once daily (n = 194) 8.56 -1.13 75.3 -1.06 1.1152 weeks
Dulaglutide 1.5 mgonce weekly 8.60 -1.10† 69.1 1.57## -2.66##(n = 192)
Dulaglutide 0.75 mgonce weekly 8.58 -1.10† 69.5 1.15## -1.71##(n = 190)
Insulin glargine+once daily (n = 194) 8.56 -1.00 70.3 -0.35 1.57† 1-sided p-value < 0.025, for non-inferiority of dulaglutide to insulin glargine## p < 0.001 dulaglutide treatment group compared to insulin glargine+ Insulin glargine doses were adjusted utilizing an algorithm with a fasting plasma glucose target of≤ 8.3 mmol/La HbA1c value of 8.0 % (DCCT) corresponds to 63.9 mmol/mol (IFCC) (average blood glucose:
10.1 mmol/L)
The rates of documented symptomatic hypoglycaemia with dulaglutide 1.5 mg and dulaglutide0.75 mg, and insulin glargine were 4.44, pct. 4.34, and 9.62 episodes/patient/year, respectively. Nopatients reported cases of severe hypoglycaemia with dulaglutide 1.5 mg, six with dulaglutide0.75 mg, and seventeen with insulin glargine. The safety profile of dulaglutide in patients with renalimpairment was similar to that observed in other studies with dulaglutide.
Use in the paediatric population
The safety and efficacy of dulaglutide 0.75 mg and 1.5 mg once weekly in children and adolescentsaged 10 years and above were compared to placebo added to diet and exercise alone, with or withoutmetformin and/or basal insulin. The double-blind placebo-controlled period lasted for 26 weeks, afterwhich patients assigned to placebo started 26 weeks of open-label treatment with dulaglutide 0.75 mgonce weekly and patients assigned to dulaglutide continued open-label dulaglutide at their assigneddose. At 26 weeks, dulaglutide was superior to placebo treatment in lowering HbA1c.
Table 13. Glycemic results in paediatric patients aged 10 years and above with type 2 diabetes, withinadequate glycemic control despite diet and exercise (with or without metformin and/or basal insulin)
Baseline Mean Patients at target Mean Mean
HbA1c change HbA1c change in change inin FBG body mass
HbA1c index(%) (%) < 7.0 % ≤ 6.5 % (mmol/L) (kg/m2)(%)a (%)b26 weeks
Dulaglutide pooledc(n = 103) 8.0 -0.8## 51.5## 41.8‡‡ -1.1## -0.1
Dulaglutide 0.75 mg ## ## ‡‡once weekly (n = 51) 7.9 -0.6 54.9 43.1 -0.7# -0.2
Dulaglutide 1.5 mg ## ## ‡‡ ##once weekly (n = 52) 8.2 -0.9 48.1 40.4 -1.4 -0.1
Placebo once weekly(n = 51) 8.1 0.6 13.7 9.8 1.0 0.052 weeksd
Dulaglutide pooledc(n = 103) 8.0 -0.4 59.5 45.2 -0.63 0.1
Dulaglutide 0.75 mgonce weekly (n = 51) 7.9 -0.2 65.0 55.0 -0.21 0.0
Dulaglutide 1.5 mgonce weekly (n = 52) 8.2 -0.6 54.6 36.4 -0.95 0.1
Placebo/dulaglutide0.75 mg once 8.1 -0.1 50.0 29.4 0.24 -0.2weeklye (n = 51)# p < 0.05, ## p < 0.001 for superiority compared to placebo, adjusted p-values with overall type Ierror controlled.
‡ p < 0.05, ‡‡ p < 0.001 for superiority compared to placebo.a HbA1c value of 7.0 % (DCCT) corresponds to 53.0 mmol/mol (IFCC) (average blood glucose:
8.6 mmol/L)b HbA1c value of 6.5 % (DCCT) corresponds to 47.5 mmol/mol (IFCC) (average blood glucose:
7.8 mmol/L)c Combined results for Trulicity 0.75 mg and 1.5 mg. The comparison of the two doses together andindividually with placebo was prespecified with overall type I error controlled.d Efficacy estimates at the primary endpoint (26 weeks) are based on the treatment regimenestimand while estimates at the end of the open label extension (52 weeks) are based on theefficacy estimand.
e Patients assigned to placebo for the initial 26 week double-blind period started treatment withdulaglutide 0.75 mg once weekly for the follow-on 26 week open-label period.