ClinicalTrials.gg
Status unknownNCT03729687LARCT-USUpdated Nov 30, 2023

Short Course Radiation Therapy Followed by Pre-operative Chemotherapy and Surgery in High-risk Rectal Cancer

A Phase 2 interventional study of radiotherapy, capecitabine, oxaliplatin in Rectal Cancer, sponsored by Uppsala University. Status unknown at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-11-30.

Sponsored by Uppsala University · Phase 2, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Nov 2023), so the status shown — last known as Active, not recruiting — may be out of date.

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled Jul 2016, registered Oct 2018).
Phase
Phase 2
Study type
Interventional
Enrollment
280
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

Patients with a primary rectal cancer without detectable distant metastasis who after locoregional therapy only, meaning preoperative radio(chemo)therapy plus surgery have at least a 40% risk of not having a CRM negative resection or a recurrence, local or distant, within three years will be treated with the short course 5 x 5 Gy radiation scheme followed by four cycles of combination chemotherapy (capecitabine and oxaliplatin) and TME surgery

Read the detailed description

The multicentre, multinational RAPIDO (Rectal cancer And Pre-operative Induction therapy followed by Dedicated Operation, EudraCT number 2010-023957-12) closed patient entry in June 2016 after having randomised the planned number of 920 patients. In the study, patients were randomised to conventional chemoradiotherapy (CRT) to 50 Gy with capecitabine followed by surgery or to short-course radiotherapy (scRT, 5 x 5 Gy), 6 cycles of oxaliplatin-capecitabine (CAPOX) followed by surgery. In the CRT arm, adjuvant chemotherapy with 8 cycles of CAPOX was optional. At the time of closure of the RAPIDO study, it was discussed in Uppsala whether CRT should be the reference treatment for these high-risk rectal cancers, the experimental treatment or an alternative. Influenced by a Polish study reported by Bujko et al in 2016 with a similar design comparing CRT with scRT followed by 3 cycles of FOLFOX), it was decided that the reference treatment for patient with primary rectal cancer at high risk of failing either locally or systemically should be scRT followed by 4 cycles of CAPOX and surgery. This regimen, identical to the experimental arm in a Chinese trial (Stellar trial (ClinicalTrials.gov NCT02533271), preliminarily revealing promising pCR rates has since then been the reference treatment for patients having the same inclusion criteria as in the RAPIDO trial. Other centres in Sweden have also decided to use this regimen as reference treatment. A formal protocol is written and approved.

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Conditions studied

  • Rectal Cancer

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Keywords

  • rectal cancer
  • high risk
  • total neoadjuvant treatment
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In context

Rectal Neoplasms

1,804 studies on the registry are indexed under Rectal Neoplasms; 520 are open to participants now.

This study's enrollment of 280 is above the median of 66 across 1,330 interventional studies indexed under Rectal Neoplasms.

Browse Rectal Neoplasms studies →

Lead sponsor

Uppsala University is the lead sponsor of 390 studies on the registry; 86 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

    • Histological proof of newly diagnosed primary adenocarcinoma of the rectum

      • Locally advanced tumour fulfilling at least one of the following criteria on pelvic MRI indicating high risk of failing locally and/or systemically (T4b, i.e. overgrowth to an adjacent organ or structure like the prostate, urinary bladder, uterus, sacrum, pelvic floor or side-wall (according to TNM version 7), cT4a, i.e. peritoneal involvement, extramural vascular invasion (EMVI+). N2, i.e. four or more lymph nodes in the mesorectum showing morphological signs on MRI indicating metastatic disease. Four or more nodes, whether enlarged or not, with a rounded, homogeneous appearance is thus not sufficient. Positive MRF, i.e. tumour or lymph node \< 1 mm from the mesorectal fascia. Enlarged lateral nodes, > 1 cm (lat LN+).

Exclusion criteria

Exclusion Criteria:

  • Extensive growth into cranial part of the sacrum (above S3) or the lumbosacral nerve roots indicating that surgery will never be possible even if substantial tumour down-sizing is seen.
  • Presence of metastatic disease or recurrent rectal tumour. Familial Adenomatosis Polyposis coli (FAP), Hereditary Non-Polyposis Colorectal Cancer (HNPCC), active Crohn's disease or active ulcerative Colitis.
  • Concomitant malignancies, except for adequately treated basocellular carcinoma of the skin or in situ carcinoma of the cervix uteri. Subjects with prior malignancies must be disease-free for at least 5 years.
  • Known DPD deficiency.
  • Any contraindications to MRI (e.g. patients with pacemakers).
  • Medical or psychiatric conditions that compromise the patient's ability to give informed consent.
  • Concurrent uncontrolled medical conditions.
  • Any investigational treatment for rectal cancer within the past month.
  • Pregnancy or breast feeding.
  • Patients with known malabsorption syndromes or a lack of physical integrity of the upper gastrointestinal tract.
  • Clinically significant (i.e. active) cardiac disease (e.g. congestive heart failure, symptomatic coronary artery disease and cardiac dysrhythmia, e.g. atrial fibrillation, even if controlled with medication) or myocardial infarction within the past 12 months.
  • Patients with symptoms of peripheral neuropathy.
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Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
280 participants (actual)

Study arms

  • Experimental
    LARCT-US

    Short Course Radiation Therapy (5 x 5 Gy in 1 week, scRT) followed by 4 cycles of Pre-operative Chemotherapy using capecitabine and oxaliplatin (CAPOX) and Surgery in High-risk Rectal Cancer

    Combination Product: radiotherapy, capecitabine, oxaliplatin

Interventions

  • Combination productradiotherapy, capecitabine, oxaliplatin

    Drug pages: Capecitabine · Oxaliplatin

    5x5 Gy radiotherapy in 1 week, 4 cycles of CAPOX (capecitabine 1000 mg/m2 x2 d 1-14, oxaliplatin 130 mg/m2 d 1 every third week), surgery

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What researchers measure

Primary outcomes

  1. Pathological complete response (pCR) rate and clinical complete response (cCR) rate

    pCR assessed at pathological examination of the surgical specimen, cCR at clinical and radiological (MRI) examination

    Time frame: pCR assessed directly after surgery and cCR 12 months after end of treatment if no surgery is performed (cCR)]

Secondary outcomes

  1. Disease-free survival

    non-radical surgery, recurrence or death within 3 years

    Time frame: 3 years

  2. Neoadjuvant rectal score (NAR score)

    Score from 0 - 100, where 0 is best

    Time frame: After surgery when the patological examination of the surgical specimen is completed

  3. Incidence of Treatment-Emergent Adverse Events

    CTCAE v 4.0

    Time frame: within 60 days after end of treatment

  4. Long-term Adverse Events

    CTCAE v 4.0

    Time frame: 4 years after end of treatment

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Study locations

1 site
  • Akademiska sjukhuset
    Uppsala, S-75185, Sweden
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References and documents

Publications

  • Nilsson PJ, van Etten B, Hospers GA, Pahlman L, van de Velde CJ, Beets-Tan RG, Blomqvist L, Beukema JC, Kapiteijn E, Marijnen CA, Nagtegaal ID, Wiggers T, Glimelius B. Short-course radiotherapy followed by neo-adjuvant chemotherapy in locally advanced rectal cancer--the RAPIDO trial. BMC Cancer. 2013 Jun 7;13:279. doi: 10.1186/1471-2407-13-279. PubMed 23742033 ↗
  • Bujko K, Wyrwicz L, Rutkowski A, Malinowska M, Pietrzak L, Krynski J, Michalski W, Oledzki J, Kusnierz J, Zajac L, Bednarczyk M, Szczepkowski M, Tarnowski W, Kosakowska E, Zwolinski J, Winiarek M, Wisniowska K, Partycki M, Beczkowska K, Polkowski W, Stylinski R, Wierzbicki R, Bury P, Jankiewicz M, Paprota K, Lewicka M, Cisel B, Skorzewska M, Mielko J, Bebenek M, Maciejczyk A, Kapturkiewicz B, Dybko A, Hajac L, Wojnar A, Lesniak T, Zygulska J, Jantner D, Chudyba E, Zegarski W, Las-Jankowska M, Jankowski M, Kolodziejski L, Radkowski A, Zelazowska-Omiotek U, Czeremszynska B, Kepka L, Kolb-Sielecki J, Toczko Z, Fedorowicz Z, Dziki A, Danek A, Nawrocki G, Sopylo R, Markiewicz W, Kedzierawski P, Wydmanski J; Polish Colorectal Study Group. Long-course oxaliplatin-based preoperative chemoradiation versus 5 x 5 Gy and consolidation chemotherapy for cT4 or fixed cT3 rectal cancer: results of a randomized phase III study. Ann Oncol. 2016 May;27(5):834-42. doi: 10.1093/annonc/mdw062. Epub 2016 Feb 15. PubMed 26884592 ↗
  • Imam I, Khan T, Nilsson PJ, Glimelius B. Quality of life and late toxicity after total neoadjuvant treatment for locally advanced rectal cancer - LARCT-US. Radiother Oncol. 2026 Jan;214:111318. doi: 10.1016/j.radonc.2025.111318. Epub 2025 Nov 28. PubMed 41319717 ↗

Study documents

  • Study protocol · Jun 14, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Jul 2016 to primary completion in May 2020, 46 months.

Of 185 non-industry phase 2 interventional studies under Rectal Neoplasms, half reached primary completion within 52 months of starting (the median), counting those still running; a quarter within 31 and three quarters within 80. This study's 46 months is below that.

Counting every sponsor, half of 195 studies reached it within 48 months; a quarter within 31 and three quarters within 80.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2018
First posted
Nov 5, 2018
StartActual
Jul 4, 2016
Primary completionActual
May 30, 2020
CompletionEst.
Jun 30, 2025
Last update
Nov 30, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 30, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03729687
Lead sponsor
Uppsala University
Collaborators
Swedish Cancer Society
Responsible party
Bengt Glimelius (Senior Professor, consultant, Uppsala University) — Principal investigator
First posted
Nov 5, 2018
Start date
Jul 4, 2016
Primary completion
May 30, 2020
Completion
Jun 30, 2025 (estimated)
Last update
Nov 30, 2023

Study contacts

Bengt Glimelius, MD,PhD
principal investigator · Uppsala University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Nov 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Capecitabine · Oxaliplatin

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