PMID- 33821768 OWN - NLM STAT- MEDLINE DCOM- 20210622 LR - 20220423 IS - 1941-9260 (Electronic) IS - 0032-5481 (Linking) VI - 133 IP - 5 DP - 2021 Jun TI - Safety and tolerability of fixed-dose combinations of ibuprofen and acetaminophen: pooled analysis of phase 1-3 clinical trials. PG - 565-571 LID - 10.1080/00325481.2021.1912466 [doi] AB - OBJECTIVES: An ibuprofen (IBU)/acetaminophen (APAP) fixed-dose combination (FDC) for over-the-counter (OTC) use was developed with the goal of providing the same effective analgesic activity as full doses of the individual monocomponents, while reducing individual monocomponent drug exposures. Here, the safety and tolerability of the FDC is characterized using pooled safety data from phase 1-3 clinical trials in the FDC development program. METHODS: We conducted a pooled safety analysis of data from 7 clinical trials: three phase 1 pharmacokinetic trials, a phase 2 proof-of-concept trial, and three phase 3 trials (a single- and a multiple-dose trial in a dental pain model and a single-dose trial in an induced-fever model). Safety and tolerability of the FDC were assessed by adverse events (AEs) for the total group and subgroups (age, sex, race). RESULTS: A total of 1,477 participants were enrolled in the 7 trials; 715 were treated with FDC IBU/APAP, 432 with IBU monotherapy, 330 with APAP monotherapy, and 156 with placebo. Most subjects were white (86.5%), and 44% were female. Two trials enrolling 195 adolescents accounted for 13.2% of the overall study population. All-causality treatment-emergent AEs (TEAEs) occurred in 19.7% of the 1477 participants. Nausea (13.5%), vomiting (7.4%), dizziness (4.5%), headache (1.2%), and feeling hot (1.0%) were the only TEAEs reported in >/=1% of subjects. Treatment-related AEs occurred in 1.8% of the subjects in the overall population. The incidence of AEs, including treatment-related AEs, was consistently lower in all active treatment groups than in the placebo group; this also applied to subgroups according to sex, race, and age, including adolescents aged 12-17 years. The higher rate of AEs with placebo was likely due to lack of pain/fever control. CONCLUSION: Single-dose or short-course FDC IBU/APAP OTC use was well tolerated, with an AE profile similar to its IBU and APAP monocomponents. CLINICALTRIALS.GOV REGISTRATION: NCT01559259; NCT02912650; NCT02837952; NCT02761980. The pharmacokinetic studies (n = 3) did not require registration. FAU - Su, Jiangfeng AU - Su J AD - Pfizer Consumer Healthcare, Pfizer Inc., Collegeville, PA, USA. FAU - Leyva, Rina AU - Leyva R AUID- ORCID: 0000-0001-8537-9731 AD - Pfizer Consumer Healthcare, Pfizer Inc., Madison, NJ, USA. FAU - Kellstein, David AU - Kellstein D AD - Pfizer Consumer Healthcare, Pfizer Inc., Madison, NJ, USA. FAU - Cruz-Rivera, Mario AU - Cruz-Rivera M AD - Pfizer Consumer Healthcare, Pfizer Inc., Madison, NJ, USA. FAU - Meeves, Suzanne AU - Meeves S AD - Pfizer Consumer Healthcare, Pfizer Inc., Madison, NJ, USA. LA - eng PT - Journal Article DEP - 20210426 PL - England TA - Postgrad Med JT - Postgraduate medicine JID - 0401147 RN - 0 (Analgesics, Non-Narcotic) RN - 0 (Anti-Inflammatory Agents, Non-Steroidal) RN - 362O9ITL9D (Acetaminophen) RN - WK2XYI10QM (Ibuprofen) SB - IM MH - Acetaminophen/*administration & dosage MH - Adult MH - Analgesics, Non-Narcotic/administration & dosage MH - Anti-Inflammatory Agents, Non-Steroidal MH - Clinical Trials, Phase I as Topic/*methods MH - Clinical Trials, Phase II as Topic/*methods MH - Clinical Trials, Phase III as Topic/*methods MH - Disorders of Excessive Somnolence MH - Drug Therapy, Combination MH - *Drug Tolerance MH - Female MH - Humans MH - Ibuprofen/*administration & dosage MH - Male MH - Randomized Controlled Trials as Topic/*methods MH - Young Adult OTO - NOTNLM OT - Acetaminophen OT - analgesia OT - fixed-dose combination OT - ibuprofen OT - safety EDAT- 2021/04/07 06:00 MHDA- 2021/06/23 06:00 CRDT- 2021/04/06 12:22 PHST- 2021/04/07 06:00 [pubmed] PHST- 2021/06/23 06:00 [medline] PHST- 2021/04/06 12:22 [entrez] AID - 10.1080/00325481.2021.1912466 [doi] PST - ppublish SO - Postgrad Med. 2021 Jun;133(5):565-571. doi: 10.1080/00325481.2021.1912466. Epub 2021 Apr 26.