Pharmacokinetics, Safety, and Tolerability of Saroglitazar (ZYH1), a Predominantly Ppara Agonist with Moderate Pparc Agonist Activity in Healthy Human Subjects
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Clin Drug Investig DOI 10.1007/s40261-013-0128-3 ORIGINAL RESEARCH ARTICLE Pharmacokinetics, Safety, and Tolerability of Saroglitazar (ZYH1), a Predominantly PPARa Agonist with Moderate PPARc Agonist Activity in Healthy Human Subjects Rajendra H. Jani • Kevinkumar Kansagra • Mukul R. Jain • Harilal Patel Ó The Author(s) 2013. This article is published with open access at Springerlink.com Abstract subjects (8 males from part I of the study and 8 females) in Background and Objectives Dyslipidaemia is a major part II. cardiovascular risk factor associated with type 2 diabetes Results Saroglitazar was rapidly and well absorbed across mellitus. Saroglitazar (ZYH1) is a novel peroxisome pro- all doses in the single-dose pharmacokinetic study, with a liferator-activated receptor (PPAR) agonist with predomi- median time to the peak plasma concentration (tmax) of less nant PPARa and moderate PPARc activity. It has been than 1 h (range 0.63–1 h) under fasting conditions across developed for the treatment of dyslipidaemia and has the doses studied. The maximum plasma concentration favourable effects on glycaemic parameters in type 2 dia- ranged from 3.98 to 7,461 ng/mL across the dose range. betes mellitus. The objective of this phase 1 study was to The area under the plasma concentration–time curve evaluate the pharmacokinetics, safety and tolerability of increased in a dose-related manner. The average terminal saroglitazar in healthy human subjects. half-life of saroglitazar was 5.6 h. Saroglitazar was not Methods This was a randomized, double-blind, placebo- eliminated via the renal route. There was no effect of sex controlled, single-centre, phase I study in healthy human on the pharmacokinetics of saroglitazar, except for the volunteers, and was performed in two parts; part I evalu- terminal half-life, which was significantly shorter in ated single ascending oral doses of saroglitazar (0.125, females than in males. Food had a small effect on the 0.25, 0.5, 1, 2, 4, 8, 16, 32, 64 and 128 mg) in healthy pharmacokinetics; however, it was not consistent in males subjects, and part II measured the effects of food and sex and females. Single oral doses of saroglitazar up to 128 mg on the pharmacokinetics of 1 mg saroglitazar, the human were well tolerated. No serious adverse events were equivalent efficacy dose derived from pre-clinical studies. reported. Adverse events were generally mild and moderate A total of 96 subjects were enrolled in the study, which in nature. Saroglitazar did not show any clinically relevant included 88 healthy male subjects in part I and 16 healthy findings in clinical laboratory investigations, physical examinations, vital signs and electrocardiograms. Conclusion The highest dose of saroglitazar evaluated in R. H. Jani (&) Á K. Kansagra this study was 128 mg, several times the estimated thera- Clinical R&D, Zydus Research Centre, Cadila Healthcare peutic doses (1–4 mg). The pharmacokinetics of saroglit- Limited, Sarkhej-Bavla N.H. No. 8A, Moriya, Ahmedabad 382 213, Gujarat, India azar support a once daily dosage schedule. Saroglitazar was e-mail: [email protected] found to be safe and well tolerated in this study. M. R. Jain Pharmacology & Toxicology, Zydus Research Centre, Cadila Healthcare Limited, Sarkhej-Bavla N.H. No. 8A, Moriya, 1 Introduction Ahmedabad 382 213, Gujarat, India Cardiovascular disease is the most common underlying H. Patel cause of death, accounting for about 50 % of mortality in Drug Metabolism & Pharmacokinetics, Zydus Research Centre, Cadila Healthcare Limited, Sarkhej-Bavla N.H. No. 8A, Moriya, type 2 diabetes mellitus (T2DM) [1, 2]. The results of the Ahmedabad 382 213, Gujarat, India ACCORD (Action to Control Cardiovascular risk in R. H. Jani et al. Diabetes) and ADVANCE (Action in Diabetes and Vascular 2 Methods Disease; Preterax and Diamicron Modified Release Con- trolled Evaluation) studies showed that intensive glycaemic The study was conducted (from 16 June 2005 to control reduced microvascular complications (new or 29 November 2005) in accordance with accepted standards worsening nephropathy or retinopathy) but not macrovas- for the protection of subject safety and welfare, and the cular complications (cardiovascular death, nonfatal myo- principles of the Declaration of Helsinki and its amend- cardial infarction or nonfatal stroke) [3, 4]. Diabetic ments, and was in compliance with Good Clinical Practice. dyslipidaemia is characterized by elevation of serum tri- The study was initiated after obtaining approval from the glyceride (TG) levels ([150 mg/dL), reduced high-density Drug Controller General of India (DCGI; no. 12-05/05- lipoprotein (HDL) cholesterol levels (\40 mg/dL in males DC, dated 27 May 2005) and an independent ethics com- and\50 mg/dL in females) and normal or elevated levels of mittee (IEC), Aditya, Ahmedabad, Gujarat, India. low-density lipoprotein (LDL) cholesterol ([100 mg/dL) [5, 6]. Low levels of serum HDL cholesterol have been corre- 2.1 Study Design lated with cardiovascular disease [7–9], and identification of agents that elevate HDL cholesterol in diabetic patients is an This was a randomized, double-blind, placebo-controlled, area of active interest. The American Diabetes Association single-centre study to evaluate the pharmacokinetics, safety (ADA) recommends control of diabetic dyslipidaemia. It has and tolerability of single ascending oral doses of saroglit- been well established that dyslipidaemia is a major cardio- azar under fasting conditions in healthy subjects. In addi- vascular risk factor associated with T2DM [7]. tion, the effects of food and sex on the pharmacokinetics of The potential of peroxisome proliferator-activated saroglitazar were also studied. receptor (PPAR) agonists to reduce the risk of cardiovas- Eligible healthy subjects (aged 18–45 years, weighing cular disease in T2DM patients has remained an area of 50–70 kg) with normal medical history, physical exami- continuous medical interest. PPARa and PPARc agonists nation, electrocardiogram (ECG) and clinical laboratory are approved for lipid and glycaemic control, respectively findings were enrolled. Eligible healthy female subjects [10, 11]. Numerous dual PPAR agonists have been devel- were enrolled if they had undergone surgical sterilization oped for management of both glycaemic and lipid abnor- (tubectomy, hysterectomy or tubal ligation). The subjects malities in T2DM. However, none of these agents has so had not received any medications within 14 days prior to far been successful [11, 12]. Saroglitazar, [(S)-a-ethoxy-4- the current study and had not participated in any study {2-[2-methyl-5-(4-methylthio) phenyl)]-1H-pyrrol-1-yl]- within 3 months prior to the current study. ethoxy})-benzenepropanoic acid magnesium salt], is the In each cohort, eight subjects were randomized to first glitazar that has been granted marketing authorization receive either saroglitazar or a matching placebo (3:1) by a in India and is indicated for treatment of diabetic dyslip- computer-generated block randomization (SAS Ver- idaemia. Saroglitazar is a dual PPAR agonist with pre- sion 9.1, SAS Institute Inc., Cary, NC, USA). Subjects dominant PPARa and moderate PPARc activity [13]. It were admitted to the clinical pharmacology unit on the was developed with an expectation to achieve optimum evening prior to dosing and were confined until 72 h after anti-dyslipidaemic and anti-hyperglycaemic effects, while the last dose. The study drugs, saroglitazar (0.125–0.5 mg avoiding peripheral oedema and weight gain. The structural oral suspension or 1–128 mg tablets) or the matching formula of saroglitazar is given in Fig. 1. placebo, were administered orally. The purpose of this first-in-humans phase 1 study was to The study was divided into two parts: (i) a single- assess the pharmacokinetics, safety and tolerability of sa- ascending-dose study; and (ii) a study of the effects of food roglitazar in healthy volunteers. and sex. 2.1.1 Part I: Single-Ascending-Dose Study Saroglitazar [versus the matching placebo (3:1)] was studied in 11 cohorts; each cohort comprised eight healthy male subjects. In the first three cohorts, saroglitazar (0.125, 0.25 and 0.5 mg) or the placebo was administered as an oral suspension (0.5 mg/mL). In subsequent cohorts, sa- roglitazar (1, 2, 4, 8, 16, 32, 64 and 128 mg) or a matching placebo tablet was orally administered. Study drugs were administered with 240 mL of water after overnight fasting Fig. 1 Structural formula of saroglitazar for at least 10 h (Fig. 2). Pharmacokinetics, Safety and Tolerability of Saroglitazar 217 male subjects screened 58 failed screening 88 randomized 71 did not report to the facility N=71,2 N=81 N=81 N=83 N=83 N=83 N=83 N=83 N=83 N=83 N=83 0.125 mg 0.25 mg 0.5 mg 1 mg 2 mg 4 mg 8 mg 16 mg 32 mg 64 mg 128 mg N=73,4 20 female subjects screened, 8 randomized 1 mg 14 eligible 5 N=75,6 Crossover food effect study N=8 1 mg 1 mg 1. Saroglitazar suspension in fasting condition. 2. N=8 randomized but one subject withdrew because of ectopic beats before dosing. 3. Saroglitazar tablet in fasting condition 4. N=8 randomized but one subject withdrew informed consent for period I of the crossover food effect study. 5. Saroglitazar after food intake. 6. One subject did not report to the facility for period II of the crossover food effect study. Fig. 2 Study design and subject disposition. The pharmacokinetics of saroglitazar in male and female subjects were compared at 1 mg doses. In each group, 6 subjects received saroglitazar and 2 received placebo 2.1.2 Part II: Study of the Effects of Food and Sex 2.2 Blood Sampling for Pharmacokinetics The effects of food and sex were studied with the sarog- In part I and part II, venous blood samples (7 mL) were litazar 1 mg tablet.