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ActiveBack
Sponsor study identifier
interventional
40
1 country
3
Study Start
May 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
December 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
February 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Introduction: The Background
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
February 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
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Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
February 2, 2026
Actual (reported)February 24, 2026
Actual (reported)May 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
December 2026
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
February 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Change in edema on MRI
Patients will have a repeat MRI performed at 3 months. A radiologist will assess for change in the spondylolytic lesion, edema and anterolisthesis. An addiotonal MR will be performed at 6 months for patients with the same or higher classification on the Hollenberg Critera at the 3 month follow-up
Baseline, 3 months and potentially at 6 months.
Changes in Youth Back Activity Questionnaire - norwegian version
Baseline, 6 weeks, 12 weeks, 18 weeks and 26 weeks
Changes in Oswestry Disability Index
Baseline, 6 weeks, 12 weeks, 18 weeks and 26 weeks
Current Norwegian guidelines recommend that everyone with this injury stop participating in sports for a minimum of 3 months. There is very little research supporting these, and other international, guidelines. Considering the negative consequences of the current regime, we wish to conduct a pilot project with 30-40 football (soccer) players aged 13-19 with the mildest, and most common, MRI grading of this injury (Grade 1). Here, we aim to test a rehabilitation protocol that is more pain-controlled and individually adapted to each athlete. The training protocol is based on other so-called low-risk stress fractures, where the probability of healing is considered good, and is divided into four phases. The time it takes to complete the rehabilitation protocol will be quite similar to the expected healing time and current protocols. The actual rehabilitation time may ultimately end up being both shorter and longer than current protocols, but with a higher degree of meaningful activity.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Idrettsmedisinsk Klinikk, Brann Stadion
Bergen, 5052, Norway
Western Norway Center for Sports Medicine
Bergen, 5058, Norway
The Norwegian FA Sports Medicine Clinic
Oslo, 1177, Norway
Slade SC, Dionne CE, Underwood M, Buchbinder R. Consensus on Exercise Reporting Template (CERT): Explanation and Elaboration Statement. Br J Sports Med. 2016 Dec;50(23):1428-1437. doi: 10.1136/bjsports-2016-096651. Epub 2016 Oct 5.
Dalen-Lorentsen T, Ranvik A, Bjorneboe J, Clarsen B, Andersen TE. Facilitators and barriers for implementation of a load management intervention in football. BMJ Open Sport Exerc Med. 2021 Jun 22;7(2):e001046. doi: 10.1136/bmjsem-2021-001046. eCollection 2021.
First Submitted
February 2, 2026
First Posted
February 24, 2026
Study Start
May 2026
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Primary Completion
December 2026
Contact the study team to confirm eligibility.
Grotle M, Brox JI, Vollestad NK. Cross-cultural adaptation of the Norwegian versions of the Roland-Morris Disability Questionnaire and the Oswestry Disability Index. J Rehabil Med. 2003 Sep;35(5):241-7. doi: 10.1080/16501970306094.
Childs JD, Piva SR, Fritz JM. Responsiveness of the numeric pain rating scale in patients with low back pain. Spine (Phila Pa 1976). 2005 Jun 1;30(11):1331-4. doi: 10.1097/01.brs.0000164099.92112.29.
Koh E, Walton ER, Watson P. VIBE MRI: an alternative to CT in the imaging of sports-related osseous pathology? Br J Radiol. 2018 Jul;91(1088):20170815. doi: 10.1259/bjr.20170815. Epub 2018 Mar 15.
Dhouib A, Tabard-Fougere A, Hanquinet S, Dayer R. Diagnostic accuracy of MR imaging for direct visualization of lumbar pars defect in children and young adults: a systematic review and meta-analysis. Eur Spine J. 2018 May;27(5):1058-1066. doi: 10.1007/s00586-017-5305-2. Epub 2017 Sep 23.
Takei S, Torii S, Taketomi S, Iwanuma S, Tojima M, Otomo M, Iizuka S, Tanaka S. Is Increased Kicking Leg Iliopsoas Muscle Tightness a Predictive Factor for Developing Spondylolysis in Adolescent Male Soccer Players? Clin J Sport Med. 2022 Mar 1;32(2):e165-e171. doi: 10.1097/JSM.0000000000000920.
Tsutsui T, Iizuka S, Takei S, Maemichi T, Torii S. Risk Factors for Symptomatic Bilateral Lumbar Bone Stress Injury in Adolescent Soccer Players: A Prospective Cohort Study. Am J Sports Med. 2023 Mar;51(3):707-714. doi: 10.1177/03635465221146289. Epub 2023 Jan 20.
Yokoe T, Tajima T, Sugimura H, Kubo S, Nozaki S, Yamaguchi N, Morita Y, Chosa E. Comparison of symptomatic spondylolysis in young soccer and baseball players. J Orthop Surg Res. 2020 Sep 3;15(1):378. doi: 10.1186/s13018-020-01910-4.
El Rassi G, Takemitsu M, Woratanarat P, Shah SA. Lumbar spondylolysis in pediatric and adolescent soccer players. Am J Sports Med. 2005 Nov;33(11):1688-93. doi: 10.1177/0363546505275645. Epub 2005 Aug 10.
Selhorst M, Fischer A, MacDonald J. Prevalence of Spondylolysis in Symptomatic Adolescent Athletes: An Assessment of Sport Risk in Nonelite Athletes. Clin J Sport Med. 2019 Sep;29(5):421-425. doi: 10.1097/JSM.0000000000000546.
Wall J, Meehan WP 3rd, Trompeter K, Gissane C, Mockler D, van Dyk N, Wilson F. Incidence, prevalence and risk factors for low back pain in adolescent athletes: a systematic review and meta-analysis. Br J Sports Med. 2022 Nov;56(22):1299-1306. doi: 10.1136/bjsports-2021-104749. Epub 2022 Sep 23.
Cugusi L, Manca A, Fischbach E, Secci C, Bergamin M, Gobbo S, DI Blasio A, Montella A, Bandiera P, Deriu F. Low back pain prevalence and risk factors in Italian adolescent male soccer players: results from an online survey. J Sports Med Phys Fitness. 2022 Aug;62(8):1088-1094. doi: 10.23736/S0022-4707.21.12696-9. Epub 2021 Sep 9.
Tunas P, Nilstad A, Myklebust G. Low back pain in female elite football and handball players compared with an active control group. Knee Surg Sports Traumatol Arthrosc. 2015 Sep;23(9):2540-7. doi: 10.1007/s00167-014-3069-3. Epub 2014 May 18.
van Hilst J, Hilgersom NF, Kuilman MC, Kuijer PP, Frings-Dresen MH. Low back pain in young elite field hockey players, football players and speed skaters: Prevalence and risk factors. J Back Musculoskelet Rehabil. 2015;28(1):67-73. doi: 10.3233/BMR-140491.
Hollenberg GM, Beattie PF, Meyers SP, Weinberg EP, Adams MJ. Stress reactions of the lumbar pars interarticularis: the development of a new MRI classification system. Spine (Phila Pa 1976). 2002 Jan 15;27(2):181-6. doi: 10.1097/00007632-200201150-00012.
Sakai T, Tezuka F, Yamashita K, Takata Y, Higashino K, Nagamachi A, Sairyo K. Conservative Treatment for Bony Healing in Pediatric Lumbar Spondylolysis. Spine (Phila Pa 1976). 2017 Jun 15;42(12):E716-E720. doi: 10.1097/BRS.0000000000001931.
Warden SJ, Davis IS, Fredericson M. Management and prevention of bone stress injuries in long-distance runners. J Orthop Sports Phys Ther. 2014 Oct;44(10):749-65. doi: 10.2519/jospt.2014.5334. Epub 2014 Aug 7.
Planned date reported by the registry; this milestone is not confirmed as achieved.
Study Completion
February 2027
EstimatedPlanned date reported by the registry; this milestone is not confirmed as achieved.
Last Updated
May 6, 2026
Record last verified: 2026-04
Anonymized raw data sheet will be shared upon request or added to submission if required
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
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