Publications 2025

Johannessen Landmark C, Mashal S, Boldingh Debernard KA, Sannes ER, Heger K, Burns ML, Henning O (2025)
What do pharmacists know about epilepsy and antiseizure medications? - A survey among pharmacists in Norway
Epilepsy Behav, 165, 110340
DOI 10.1016/j.yebeh.2025.110340, PubMed 40015058

Johannessen Landmark C, Sætre J, Gottås A, Wolden M, McQuade TA, Kjeldsen SF, Våtevik A, Sætre E, Svendsen T, Burns ML, Øiestad EL, Johannessen SI (2025)
Pharmacokinetic variability and use of therapeutic drug monitoring of cannabidiol in patients with refractory epilepsy
Epilepsia, 66 (5), 1477-1491
DOI 10.1111/epi.18284, PubMed 39985501

Johannessen Landmark C, Wolden M, Sætre J, Burns ML, Heger K, Kjeldsen SF, Johannessen SI, Sætre E (2025)
A precision approach to therapeutic drug monitoring of valproate to evaluate markers of toxicity
Epilepsia (in press)
DOI 10.1111/epi.18508, PubMed 40538198

Publications 2024

Heger K, Burns ML, Nikanorova M, Johannessen SI, Johannessen Landmark C (2024)
Pharmacokinetic Variability of Rufinamide and Stiripentol in Children With Refractory Epilepsy: A Retrospective Study of Therapeutic Drug Monitoring From the National Epilepsy Centers in Denmark and Norway
Ther Drug Monit, 46 (5), 664-671
DOI 10.1097/FTD.0000000000001219, PubMed 38758628

Publications 2023

Heger K, Kjeldstadli K, Ring N, Aaberg KM, Kjeldsen SF, Burns ML, Johannessen SI, Johannessen Landmark C (2023)
Pharmacokinetic Variability of Sulthiame: The Impact of Age, Drug-Drug Interactions, and Biochemical Markers of Toxicity in Patients with Epilepsy
Ther Drug Monit, 46 (2), 237-245
DOI 10.1097/FTD.0000000000001146, PubMed 38158595

Johannessen Landmark C, Eyal S, Burns ML, Franco V, Johannessen SI (2023)
Pharmacological aspects of antiseizure medications: From basic mechanisms to clinical considerations of drug interactions and use of therapeutic drug monitoring
Epileptic Disord, 25 (4), 454-471
DOI 10.1002/epd2.20069, PubMed 37259844

Publications 2022

Heger K, Skipsfjord J, Kiselev Y, Burns ML, Aaberg KM, Johannessen SI, Skurtveit S, Johannessen Landmark C (2022)
Changes in the use of antiseizure medications in children and adolescents in Norway, 2009-2018
Epilepsy Res, 181, 106872
DOI 10.1016/j.eplepsyres.2022.106872, PubMed 35180640

Svendsen T, Brodtkorb E, Linge HL, Burns ML, Johannessen SI, Nakken KO, Lossius MI, Landmark CJ (2022)
Efficacy, tolerability and pharmacokinetic variability of brivaracetam in adults with difficult-to-treat epilepsy
Epilepsy Res, 183, 106946
DOI 10.1016/j.eplepsyres.2022.106946, PubMed 35609355

Publications 2021

Landmark CJ, Rektorli L, Burns ML, Revdal E, Johannessen SI, Brodtkorb E (2021)
Pharmacokinetic data on brivaracetam, lacosamide and perampanel during pregnancy and lactation
Epileptic Disord, 23 (2), 426-431
DOI 10.1684/epd.2021.1273, PubMed 33935028

Publications 2020

Heger K, Lund C, Larsen Burns M, Bjørnvold M, Sætre E, Johannessen SI, Johannessen Landmark C (2020)
A retrospective review of changes and challenges in the use of antiseizure medicines in Dravet syndrome in Norway
Epilepsia Open, 5 (3), 432-441
DOI 10.1002/epi4.12413, PubMed 32913951

Johannessen Landmark C, Heger K, Lund C, Burns ML, Bjørnvold M, Sætre E, Johannessen SI (2020)
Pharmacokinetic Variability During Long-Term Therapeutic Drug Monitoring of Valproate, Clobazam, and Levetiracetam in Patients With Dravet Syndrome
Ther Drug Monit, 42 (5), 744-753
DOI 10.1097/FTD.0000000000000781, PubMed 32558674

Publications 2019

Larsen Burns M, Kinge E, Stokke Opdal M, Johannessen SI, Johannessen Landmark C (2019)
Therapeutic drug monitoring of gabapentin in various indications
Acta Neurol Scand, 139 (5), 446-454
DOI 10.1111/ane.13075, PubMed 30710348

Larsen Burns M, Nikanorova M, Baftiu A, Borg Rasmussen J, Johannessen SI, Johannessen Landmark C (2019)
Pharmacokinetic Variability and Clinical Use of Lacosamide in Children and Adolescents in Denmark and Norway
Ther Drug Monit, 41 (3), 340-347
DOI 10.1097/FTD.0000000000000599, PubMed 30688870

Publications 2018

Johannessen Landmark C, Farmen AH, Burns ML, Baftiu A, Lossius MI, Johannessen SI, Tomson T (2018)
Pharmacokinetic variability of valproate during pregnancy - Implications for the use of therapeutic drug monitoring
Epilepsy Res, 141, 31-37
DOI 10.1016/j.eplepsyres.2018.02.004, PubMed 29453075

Reimers A, Berg JA, Burns ML, Brodtkorb E, Johannessen SI, Johannessen Landmark C (2018)
Reference ranges for antiepileptic drugs revisited: a practical approach to establish national guidelines
Drug Des Devel Ther, 12, 271-280
DOI 10.2147/DDDT.S154388, PubMed 29467570

Publications 2017

Baftiu A, Feet SA, Larsson PG, Burns ML, Henning O, Sætre E, Molden E, Granas AG, Johannessen SI, Landmark CJ (2017)
Utilisation and polypharmacy aspects of antiepileptic drugs in elderly versus younger patients with epilepsy: A pharmacoepidemiological study of CNS-active drugs in Norway, 2004-2015
Epilepsy Res, 139, 35-42
DOI 10.1016/j.eplepsyres.2017.11.001, PubMed 29175562

Burns ML, Lang AM (2017)
The authors reply
Pediatr Crit Care Med, 18 (1), 98
DOI 10.1097/PCC.0000000000001023, PubMed 28060165

Johannessen Landmark C, Burns ML, Baftiu A, Farmen AH, Lossius MI, Johannessen SI, Tomson T (2017)
Pharmacokinetic variability of valproate in women of childbearing age
Epilepsia, 58 (10), e142-e146
DOI 10.1111/epi.13872, PubMed 28833045

Reimers A, Berg JA, Burns ML, Landmark CJ (2017)
Harmonised reference ranges for antiepileptic drugs
Tidsskr Nor Laegeforen, 137 (12-13), 864-865
DOI 10.4045/tidsskr.17.0392, PubMed 28655236

Reimers A, Berg JA, Burns ML, Landmark CJ (2017)
Common reference range for antiepileptics
Tidsskr. Nor. Laegeforen., 137 (12-13), 864-865

Svendsen T, Brodtkorb E, Baftiu A, Burns ML, Johannessen SI, Johannessen Landmark C (2017)
Therapeutic Drug Monitoring of Lacosamide in Norway: Focus on Pharmacokinetic Variability, Efficacy and Tolerability
Neurochem Res, 42 (7), 2077-2083
DOI 10.1007/s11064-017-2234-8, PubMed 28349359

Publications 2016

Burns ML, Baftiu A, Opdal MS, Johannessen SI, Landmark CJ (2016)
Therapeutic Drug Monitoring of Clobazam and Its Metabolite-Impact of Age and Comedication on Pharmacokinetic Variability
Ther Drug Monit, 38 (3), 350-7
DOI 10.1097/FTD.0000000000000272, PubMed 26751267

Burns ML, Stensvold HJ, Risnes K, Guthe HJ, Astrup H, Nordhov SM, Selberg TR, Rønnestad A, Lang AM, Norwegian Neonatal Network (2016)
Inotropic Therapy in Newborns, A Population-Based National Registry Study
Pediatr Crit Care Med, 17 (10), 948-956
DOI 10.1097/PCC.0000000000000898, PubMed 27500723

Johannessen Landmark C, Svendsen T, Dinarevic J, Kufaas RF, Reimers A, Brodtkorb E, Baftiu A, Burns ML, Johannessen SI (2016)
The Impact of Pharmacokinetic Interactions With Eslicarbazepine Acetate Versus Oxcarbazepine and Carbamazepine in Clinical Practice
Ther Drug Monit, 38 (4), 499-505
DOI 10.1097/FTD.0000000000000306, PubMed 27414974

Publications 2015

Johannessen Landmark C, Beiske G, Baftiu A, Burns ML, Johannessen SI (2015)
Experience from therapeutic drug monitoring and gender aspects of gabapentin and pregabalin in clinical practice
Seizure, 28, 88-91
DOI 10.1016/j.seizure.2015.02.017, PubMed 25758302

Karlsen Bjånes T, Mjåset Hjertø E, Lønne L, Aronsen L, Andsnes Berg J, Bergan S, Otto Berg-Hansen G, Bernard JP, Larsen Burns M, Toralf Fosen J, Frost J, Hilberg T, Krabseth HM, Kvan E, Narum S, Austgulen Westin A (2015)
Pharmacology Portal: An Open Database for Clinical Pharmacologic Laboratory Services
Clin Ther, 38 (1), 222-6
DOI 10.1016/j.clinthera.2015.10.015, PubMed 26546404

Publications 2014

Høiseth G, Fjeld B, Burns ML, Strand DH, Vindenes V (2014)
Long-term stability of morphine, codeine, and 6-acetylmorphine in real-life whole blood samples, stored at -20°C
Forensic Sci Int, 239, 6-10
DOI 10.1016/j.forsciint.2014.03.008, PubMed 24709028

Publications 2012

Fjeld B, Burns ML, Karinen R, Larssen B, Smith-Kielland A, Vindenes V (2012)
Long-term stability of GHB in post-mortem samples and samples from living persons, stored at -20°C, using fluoride preservatives
Forensic Sci Int, 222 (1-3), 47-51
DOI 10.1016/j.forsciint.2012.04.033, PubMed 22648054

Publications 2011

Bogstrand ST, Normann PT, Rossow I, Larsen M, Mørland J, Ekeberg Ø (2011)
Prevalence of alcohol and other substances of abuse among injured patients in a Norwegian emergency department
Drug Alcohol Depend, 117 (2-3), 132-8
DOI 10.1016/j.drugalcdep.2011.01.007, PubMed 21316163