Presented at the ASCPT 2026 Annual Meeting. An exposure-response model was developed to evaluate the effect of nerandomilast on forced vital capacity (FVC) in patients with idiopathic pulmonary fibrosis (IPF) and progressive pulmonary fibrosis (PPF) , capturing both an initial “offset effect” and a long-term “disease-modifying effect” on the rate of FVC decline. The analysis confirmed a positive exposure-response relationship that is maintained regardless of the underlying diagnosis. Furthermore, simulations support using an 18 mg twice-daily dose to mitigate the reduced drug exposure associated with background pirfenidone use, ensuring a robust treatment response for patients on multi-drug regimens.

Simulated efficacy of nerandomilast on forced vital capacity decline in idiopathic pulmonary fibrosis and progressive pulmonary fibrosis across background antifibrotic therapies Samuel P. Callisto1, Kyle Baron1, Elias Clark1, Curtis Johnston1∗, Nikolas Onufrak2∗, Sonja Hartmann2∗, Steve Choy2 1Metrum Research Group, Boston, MA, U.S.A., 2Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, U.S.A. ∗Affiliation during time of analysis Introduction.   

Presented at ACoP 2024. The Bone Health QSP model was extended by incorporating XLH disease mechanisms and burosumab impact on serum phosphate and other biomarkers using clinical data from adult and pediatric patients with XLH. The model reproduced clinically observed changes in pharmacodynamic markers in both adult and pediatric patients with XLH; normalization of serum phosphate with burosumab treatment was successfully replicated, facilitating a better understanding of burosumab dosing in patients with XLH going forward. The model could potentially be used to optimize treatment in the clinical setting.

Matthew M. Riggs, Howard A. Ball, Kanji Komatsu, Akihiro Yamada.  Poster presented at 2020 American Conference on Pharmacometrics (ACoP11) virtual meeting. 10 November 2020.

Model code and supporting material is available here.

Presentation by Kyle Baron, PharmD, Ph.D., at the American Conference of Pharmacometrics in October 2019. Poster can be found here.
Authors: Kyle Baron, Oliver Pohl, Matthew Riggs, Jonathan French, Jean-Pierre Gotteland, Ramon Garcia

Poster presented at the American Conference of Pharmacometrics in October 2019. Accompanying slides can be found here.
Authors: Kyle Baron, Oliver Pohl, Matthew Riggs, Jonathan French, Jean-Pierre Gotteland, Ramon Garcia

Riggs, Matthew. Presentation at ISoPNE iPSP event. Cambridge, MA. 26 Aug 2019.

Riggs MM, Cremers S. British Pharmacological Society. 85(6):1136–46. 28 January 2019. https://doi.org/10.1111/bcp.13881

Riggs MM. Clin Pharmacol Ther. 98:394. 18 December 2018. doi: 10.1002/cpt.1287

Riggs MM. Poster presented at 2018 American Conference on Pharmacometrics (ACoP9). San Diego, CA. 9 Oct 2018. Abstract #T-078.

Riggs MM. Presentation at 2018 American Conference on Pharmacometrics (ACoP9). San Diego, CA. 9 Oct 2018.

Riggs MM. Presentation at 2018 American Conference on Pharmacometrics (ACoP9). San Diego, CA. 8 Oct 2018.

Eudy-Byrne RJ, Gillespie W, Riggs MM. Gastonguay MR. J Pharmacokinet Pharmacodyn (2017).  First online 28 Oct 2017. https://doi.org/10.1007/s10928-017-9551-z

Riggs, M.  Presented at Pharmacology 2016, annual meeting of the British Pharmacological Society, London, December 2016.

Ocampo-Pelland AS, Gastonguay MR, Riggs MM.  Presented at the 7th American Conference on Pharmacometrics (ACoP), Bellevue, WA; October 2016.

Eudy-Byrne RJ, Gillespie WR, Riggs MM, Gastonguay MR.  Poster presented at: American Society for Bone and Mineral Research Annual Meeting; September 2016.

Ocampo-Pelland AS, Gastonguay MR, French JF, Riggs MM.  J Pharmacokinet Pharmacodyn. 2016 Apr;43(2):191-206.

Eudy RJ, Gastonguay MR, Baron KT, and Riggs MM.  CPT: Pharmacometrics & Systems Pharmacology. 2015;4(9):527-536. doi:10.1002/psp4.12013.

Riggs MM. Presented at Sunrise Session: Integration of Systems Modeling in Clinical Development: Successes, Challenges, and Future Outlook at the American American Society for Clinical Pharmacology and Therapeutics Annual Meeting, 2013.

Riggs M.  Presented at the Annual Meeting of the American Society for Clinical Pharmacology and Therapeutics, 2013.

Kyle T. Baron, Matthew M. Riggs, Ryoko Sawamura, Takako Shimizu, Fumihiko Okada, Jin Zhou, Takahiro Shibayama, Mendel Jansen. Presented at the American Society of Bone and Mineral Research (ASBMR), October, 2013.

Peterson MC and Riggs MM. CPT Pharmacometrics Syst Pharmacol. 2012 Nov; 1(11): e14. Published online 2012 Nov 14. doi: 10.1038/psp.2012.15

Riggs MM, Baron KT, Plan EL, Gastonguay MR. Presented at American Society of Bone Mineral Research (ASBMR) Annual Meeting, Minneapolis, MN; October 14, 2012 (Abstract SU0363).

Plan EL, Baron KT, Gastonguay MR, French JL, Gillespie WR, and Riggs MM. Presented at the 21st Annual Meeting of the Population Approach Group Europe (PAGE), Venice, Italy, 2012, Abstract 2592.

Riggs MM. . Presented at the AAPS Biotechnology Conference, San Diego, CA; May 22, 2012.

Riggs MM, Peterson MC, Gastonguay MR. The Journal of Clinical Pharmacology. 52(1 Suppl):45S-53S. January 2012. doi:10.1177/0091270011412967

Riggs MM. Presented at First Indiana Clinical and Translational Sciences Institute (CTSI) Symposium on Disease and Therapeutic Response Modeling. Indiana University – Purdue University Indianapolis; Indianapolis, IN; 13 November 2011.

Riggs MM. Presented at ACOP; April 2011; San Diego, CA.

Riggs MM, Gastonguay MR, Peterson MC. Presented at 2010 American Association of Pharmaceutical Scientists (AAPS) Annual Meeting, New Orleans LA; 17 November 2010; Poster # W4403

Riggs MM, Gillespie WR, Gastonguay MR, Peterson MC. Presented at National Institute of General Medical Sciences Quantitative Systems Pharmacology Workshop II. Bethesda, MD; 9 September 2010.

Peterson MC, Riggs MM. Bone. 46: 49-63. January 2010.