Study Stopped
Board decision in 2020 due to lack of financial funding.
Adjuvant Aspirin Treatment for Colon Cancer Patients
Adjuvant Aspirin Treatment in PIK3CA Mutated Colon Cancer Patients. A Randomized, Double-blinded, Placebo-controlled, Phase III Trial
3 other identifiers
interventional
1,040
4 countries
60
Brief Summary
Following complete resection of their primary tumor, potentially eligible stage II or stage III colon cancer patients will undergo central PIK3CA testing. Patients with somatic mutations will be 2:1 randomized to daily aspirin 100 mg versus placebo for a a maximum of 3 years or until disease recurrence, patient death or withdrawal of consent, whichever occurs first. Patients will be followed up for at least 3 years from the date of surgery. The intake of aspirin or placebo is independent of adjuvant chemotherapy, and does not impact on the indication to give (or not to give) adjuvant chemotherapy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Jun 2016
Longer than P75 for phase_3
60 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 5, 2015
CompletedFirst Posted
Study publicly available on registry
June 10, 2015
CompletedStudy Start
First participant enrolled
June 9, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 14, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 14, 2023
CompletedResults Posted
Study results publicly available
May 16, 2025
CompletedMay 16, 2025
May 1, 2025
7.3 years
June 5, 2015
April 2, 2025
May 15, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Disease-free Survival (DFS)
The primary endpoint of this trial is DFS, defined as time from surgery until one of the following events, whichever comes first: * recurrence * second cancer * death due to any reason Patients not experiencing an event will be censored at the date of the last available tumor assessment.
up to 7 years
Secondary Outcomes (4)
Time to Recurrence (TTR)
up to 7 years
Overall Survival (OS)
up to 7 years
Cancer-specific Survival (CSS)
up to 7 years
Adverse Events (AEs)
During treatment (median 22.1 months)
Study Arms (2)
Aspirin 100 mg
EXPERIMENTALAsprin 100 mg daily for maximum 3 years standard chemo if indicated
Placebo
ACTIVE COMPARATORPlacebo daily for maximum 3 years standard chemo if indicated
Interventions
Eligibility Criteria
You may qualify if:
- Histologically confirmed diagnosis of adenocarcinoma of the colon.
- Stage II (pT3/T4 N0 cM0) or stage III (pTx pN+ cM0) colon cancer.
- Availability of cancer tissue for central molecular testing.
- Presence of predefined, activating PIK3CA mutation in exons 9 or 20 (centrally assessed).
- Complete resection of the primary tumor (R0) within 14 weeks maximum before registration.
- WHO performance status 0-2.
- Age between 18-80 years.
- Adequate hematological values: hemoglobin ≥ 80 g/L, platelets ≥ 50 x 109/L.
- Adequate hepatic function: total bilirubin ≤1.5xULN, AST ≤2.5xULN, ALT ≤2.5xULN, AP ≤2.5xULN.
- Calculated creatinine clearance \> 30 mL/min, according to the formula of Cockcroft-Gault.
You may not qualify if:
- Previous or concomitant malignancy within 3 years of registration, except for adequately treated cervical carcinoma in situ or localized non-melanoma skin cancer.
- Multiple adenocarcinomas of the colon.
- Rectal cancer (defined as distance from anal verge to proximal/oral tumor edge ≤15 cm).
- Severe or uncontrolled cardiovascular disease (congestive heart failure NYHA III or IV, unstable angina pectoris, history of myocardial infarction) within three months prior to registration.
- Systemic rheumatic diseases or degenerative disorders affecting the musculoskeletal system with a relevant risk of requiring treatment with NSAIDs in the future.
- Comorbidities that require regular (i.e. more than 3x per month, any dose) intake of acetylsalicylic acid or other NSAIDs or COX-2 inhibitors.
- Clinically relevant upper gastro-intestinal bleeding within 12 months prior to registration.
- Presence of any bleeding disorder that is an absolute contraindication to the use of aspirin.
- General tendency to hypersensitivity and history of asthma triggered by salicylates or substances with a similar mechanism of action, and non-steroidal anti-inflammatory drugs in particular
- Any serious underlying medical condition, at the judgment of the investigator, which could impair the ability of the patient to participate in the trial (e.g. uncontrolled infection, active autoimmune disease, uncontrolled diabetes).
- Concurrent treatment with other experimental drugs or treatment in an interventional clinical trial within 30 days prior to trial entry. Concomitant use of adjuvant chemotherapy for stage III and high risk stage II colon cancer according to international treatment guidelines is allowed (chemotherapy regimens include intravenous 5-fluorouracil or oral capecitabine either alone or in combination with intravenous oxaliplatin).
- Psychiatric disorder precluding understanding of trial information, giving informed consent or interfering with compliance for oral drug intake.
- Any familial, sociological or geographical condition potentially hampering proper staging and compliance with the trial protocol.
- Known or suspected hypersensitivity to any component of the trial drug or any agent given in association with this trial.
- Known galactose-1-phosphate uridyl transferase deficiency, UDP galactose 4 epimerase deficiency, galactokinase deficiency, orFanconi-Bickel syndrome, congenital lactase deficiency,or glucose-galactose malabsorption (due to the lactose-containing placebo).
- +1 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (60)
Hopital Universitaire Brugmann
Brussels, 1020, Belgium
Universitair Ziekenhuis Brussel
Brussels, 1090, Belgium
Hôpital de Jolimont
Haine-Saint-Paul, 7100, Belgium
CHC - Clinique Saint-Joseph
Liège, 4000, Belgium
Az Damiaan
Ostend, 8400, Belgium
AZ Turnhout - Campus Sint-Elisabeth
Turnhout, 2300, Belgium
Spandau Vivantes Klinikum
Berlin, 13585, Germany
Fürst-Stirum-Klinik Bruchsal
Bruchsal, 76646, Germany
pioh KÖLN
Cologne, 50674, Germany
Universitätsklinikum Dresden
Dresden, 01307, Germany
Kliniken Essen Mitte
Essen, 45136, Germany
pioh Frechen
Frechen, 50226, Germany
Praxis und Tagesklinik - Medizinische Management GmbH
Friedrichshafen, 88045, Germany
Überörtliche Gemeinschaftspraxis - Schwerpunkt Haematologie, internistische Onkologie & Palliativmedizin
Hamburg, 20259, Germany
Universitätsklinikum Hamburg-Eppendorf
Hamburg, Germany
Medizinische Hochschule Hannover
Hanover, 30625, Germany
Onkologische Schwerpunktpraxis Heidelberg
Heidelberg, 69115, Germany
Onkologie UnterEms
Leer, 26789, Germany
Klinikum Ludwigsburg
Ludwigsburg, 71640, Germany
Universitätsmedizin Mannheim
Mannheim, 68135, Germany
Kliniken Maria Hilf GmbH - Krankenhaus St. Franziskus
Mönchengladbach, 41063, Germany
Medizinische Klinik und Poliklinik III - Universitätsklinik
München, 83177, Germany
Klinikum Nuernberg
Nuremberg, 90419, Germany
Pi.Tri-Studien GmbH
Offenburg, 77654, Germany
CaritasKlinikum Saarbrücken
Saarbrücken, 66113, Germany
Marienhospital
Stuttgart, 70199, Germany
Klinik für Innere Medizin I
Ulm, 89081, Germany
Medizinische Studiengesellschaft NORD-WEST GmbH - Praxis Aurich
Westerstede, 26655, Germany
Medizinische Studiengesellschaft NORD-WEST GmbH
Westerstede, 26655, Germany
St. László Teaching Hospital
Budapest, H - 1097, Hungary
Kantonsspital Aarau
Aarau, CH-5001, Switzerland
Kantonsspital Baden
Baden, 5404, Switzerland
Universitätsspital Basel
Basel, 4031, Switzerland
St. Claraspital Basel
Basel, 4058, Switzerland
IOSI, Ospedale San Giovanni
Bellinzona, 6500, Switzerland
Klinik Engeried / Oncocare
Bern, 3012, Switzerland
Inselspital Bern
Bern, CH-3010, Switzerland
Spitalzentrum Biel
Biel, CH-2501, Switzerland
Spitalzentrum Oberwallis
Brig, 3900, Switzerland
Kantonsspital Graubünden
Chur, 7000, Switzerland
HFR-Hôpital cantonal
Fribourg, 1708, Switzerland
CCAC Fribourg
Fribourg, Switzerland
Hopitaux Universitaires de Geneve
Geneva, 1211, Switzerland
Clinique de Genolier
Genolier, 1272, Switzerland
CCAC Lausanne
Lausanne, 1004, Switzerland
Centre Hospitalier Universitaire Vaudois
Lausanne, CH-1011, Switzerland
Kantonsspital Liestal
Liestal, 4410, Switzerland
Kantonsspital Luzern
Lucerne, 6000, Switzerland
Clinica Luganese
Lugano, 6900, Switzerland
Onkologie Zentrum Spital Männedorf
Manno, 8708, Switzerland
Spital Thurgau
Münsterlingen, 8596, Switzerland
Hôpital de Pourtalès
Neuchâtel, Switzerland
Kantonsspital Olten
Olten, CH-4600, Switzerland
Kantonsspital St. Gallen
Sankt Gallen, 9007, Switzerland
Spital Limmattal
Schlieren, 8952, Switzerland
Hôpital du Valais Sion
Sion, 1951, Switzerland
Bürgerspital Solothurn - Onkologiezentrum
Solothurn, 4600, Switzerland
SpitalSTS AG Simmental-Thun-Saanenland
Thun, 3600, Switzerland
Kantonsspital Winterthur
Winterthur, CH-8400, Switzerland
Stadtspital Zürich Triemli
Zurich, CH-8063, Switzerland
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
small sample size
Results Point of Contact
- Title
- Regulatory affairs
- Organization
- SAKK
Study Officials
- STUDY CHAIR
Ulrich Güller, Prof
Spital STS AG Thun
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 5, 2015
First Posted
June 10, 2015
Study Start
June 9, 2016
Primary Completion
September 14, 2023
Study Completion
September 14, 2023
Last Updated
May 16, 2025
Results First Posted
May 16, 2025
Record last verified: 2025-05
Data Sharing
- IPD Sharing
- Will not share