PMID- 35312941 OWN - NLM STAT- MEDLINE DCOM- 20220517 LR - 20230602 IS - 1573-0646 (Electronic) IS - 0167-6997 (Print) IS - 0167-6997 (Linking) VI - 40 IP - 3 DP - 2022 Jun TI - Phase II study of dichloroacetate, an inhibitor of pyruvate dehydrogenase, in combination with chemoradiotherapy for unresected, locally advanced head and neck squamous cell carcinoma. PG - 622-633 LID - 10.1007/s10637-022-01235-5 [doi] AB - Chemoradiotherapy (CRT) for locally-advanced head and neck squamous cell carcinoma (LA-HSNCC) yields 5-year survival rates near 50% despite causing significant toxicity. Dichloroacetate (DCA), a pyruvate dehydrogenase kinase metabolic inhibitor, reduces tumor lactate production and has been used in cancer therapy previously. The safety of adding this agent to CRT is unknown. Our randomized, placebo-controlled, double-blind phase II study added DCA to cisplatin-based CRT in patients with LA-HNSCC. The primary endpoint was safety by adverse events (AEs). Secondary endpoints compared efficacy via 3-month end-of-treatment response, 5-year progression-free and overall survival. Translational research evaluated pharmacodynamics of serum metabolite response. 45 participants (21 DCA, 24 Placebo) were enrolled from May 2011-April 2014. Higher rates of all-grade drug related fevers (43% vs 8%, p = 0.01) and decreased platelet count (67% vs 33%, p = 0.02) were seen in DCA versus placebo. However, there were no significant differences in grade 3/4 AE rates. Treatment compliance to DCA/placebo, radiation therapy, and cisplatin showed no significant difference between groups. While end-of-treatment complete response rates were significantly higher in the DCA group compared to placebo (71.4% vs 37.5%, p = 0.0362), survival outcomes were not significantly different between groups. Treatment to baseline metabolites demonstrated a significant drop in pyruvate (0.47, p < 0.005) and lactate (0.61, p < 0.005) in the DCA group. Adding DCA to cisplatin-based CRT appears safe with no detrimental effect on survival and expected metabolite changes compared to placebo. This supports further investigation into combining metabolic agents to CRT. Trial registration number: NCT01386632, Date of Registration: July 1, 2011. CI - (c) 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Powell, Steven F AU - Powell SF AUID- ORCID: 0000-0002-5029-0048 AD - Sanford Cancer Center, 1309 W. 17th Street, Suite 101, Sioux Falls, SD, 57104, USA. Steven.Powell@sanfordhealth.org. AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. Steven.Powell@sanfordhealth.org. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. Steven.Powell@sanfordhealth.org. FAU - Mazurczak, Miroslaw AU - Mazurczak M AD - Sanford Cancer Center, 1309 W. 17th Street, Suite 101, Sioux Falls, SD, 57104, USA. AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. FAU - Dib, Elie G AU - Dib EG AD - St. Joseph Mercy Cancer Center, 5301 Elliott Dr. Ste 210, Ypsilanti, MI, 48197, USA. FAU - Bleeker, Jonathon S AU - Bleeker JS AD - Sanford Cancer Center, 1309 W. 17th Street, Suite 101, Sioux Falls, SD, 57104, USA. AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. FAU - Geeraerts, Louis H AU - Geeraerts LH AD - Sanford Roger Maris Cancer Center, 820 4th St N, Fargo, ND, 58102, USA. FAU - Tinguely, Matthew AU - Tinguely M AD - Sanford Roger Maris Cancer Center, 820 4th St N, Fargo, ND, 58102, USA. FAU - Lohr, Michele M AU - Lohr MM AD - Sanford Cancer Center, 1309 W. 17th Street, Suite 101, Sioux Falls, SD, 57104, USA. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. FAU - McGraw, Steven C AU - McGraw SC AD - Sanford Cancer Center, 1309 W. 17th Street, Suite 101, Sioux Falls, SD, 57104, USA. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. FAU - Jensen, Ashley W AU - Jensen AW AD - Sanford Roger Maris Cancer Center, 820 4th St N, Fargo, ND, 58102, USA. FAU - Ellison, Christie A AU - Ellison CA AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. FAU - Black, Lora J AU - Black LJ AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. FAU - Puumala, Susan E AU - Puumala SE AD - University of South Dakota School of Health Sciences, 414 E. Clark St., Vermillion, SD, 57069, USA. FAU - Reed, Valerie J AU - Reed VJ AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. FAU - Miskimins, W Keith AU - Miskimins WK AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. FAU - Lee, John H AU - Lee JH AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. AD - Avera Cancer Institute, 1000 E 23rd St, Sioux Falls, SD, 57105, USA. FAU - Spanos, William C AU - Spanos WC AD - Sanford Cancer Center, 1309 W. 17th Street, Suite 101, Sioux Falls, SD, 57104, USA. AD - Sanford Research, 301 East 60th St N, Sioux Falls, SD, 57104, USA. AD - University of South Dakota Sanford School of Medicine, 414 E. Clark St., Vermillion, SD, 57069, USA. LA - eng SI - ClinicalTrials.gov/NCT01386632 GR - P20 GM103548/GM/NIGMS NIH HHS/United States GR - R01 DE026125/DE/NIDCR NIH HHS/United States GR - R01 DE029524/DE/NIDCR NIH HHS/United States PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20220321 PL - United States TA - Invest New Drugs JT - Investigational new drugs JID - 8309330 RN - 0 (Pyruvates) RN - 9LSH52S3LQ (Dichloroacetic Acid) RN - EC 1.- (Oxidoreductases) RN - Q20Q21Q62J (Cisplatin) SB - IM MH - *Antineoplastic Combined Chemotherapy Protocols/administration & dosage/adverse effects MH - Chemoradiotherapy/adverse effects MH - Cisplatin/administration & dosage/adverse effects MH - Dichloroacetic Acid/administration & dosage/adverse effects MH - *Head and Neck Neoplasms/drug therapy/enzymology/radiotherapy MH - Humans MH - *Oxidoreductases/antagonists & inhibitors/metabolism MH - Pyruvates/metabolism MH - *Squamous Cell Carcinoma of Head and Neck/drug therapy/enzymology/radiotherapy PMC - PMC9106928 MID - NIHMS1798469 OTO - NOTNLM OT - Chemoradiotherapy OT - Dichloroacetate OT - Head and neck cancer OT - Tumor microenvironment COIS- Disclosure of potential conflicts of interest: Steven Powell has received research grant support to the institution from Merck, Bristol Myers Squib, Pfizer, Vyriad, Incyte, Actuate, Genentech, Seattle Genetics anded consulting support to the institution from Bristol Myers Squibb. William Spanos received consulting support for Bristol Myers Squibb, Regeneron, and Merck. The other authors declare no conflict of interest. EDAT- 2022/03/22 06:00 MHDA- 2022/05/18 06:00 PMCR- 2023/06/01 CRDT- 2022/03/21 17:19 PHST- 2021/12/07 00:00 [received] PHST- 2022/03/11 00:00 [accepted] PHST- 2022/03/22 06:00 [pubmed] PHST- 2022/05/18 06:00 [medline] PHST- 2022/03/21 17:19 [entrez] PHST- 2023/06/01 00:00 [pmc-release] AID - 10.1007/s10637-022-01235-5 [pii] AID - 10.1007/s10637-022-01235-5 [doi] PST - ppublish SO - Invest New Drugs. 2022 Jun;40(3):622-633. doi: 10.1007/s10637-022-01235-5. Epub 2022 Mar 21.