Clinical trial Recruiting at 12 sites Observational Ages 18 and up

Using genome and RNA analysis to guide treatment for advanced rare cancers

Official title: Randomized Comparison of Treatment Guided by Comprehensive Genome and Transcriptome Analysis Versus Standard of Care in Patients With Advanced Rare Cancers (RATIONALE)

Run by German Cancer Research Center · NCT06855134 · Data updated 2026-11-12

This project will test whether using detailed tumor DNA, RNA and methylation analyses to guide treatment helps adults with advanced rare cancers respond better than standard care.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment946 (estimated)
SponsorGerman Cancer Research Center
Academic / other
Locations16 sites (Augsburg and 15 other locations)
StatusRecruiting
StartedSeptember 29, 2025
Main results expectedApril 2029
Study endsApril 2030
Registry record updatedJuly 7, 2026
Trial IDNCT06855134 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18) with locally advanced or metastatic rare epithelial or mesenchymal cancers, ECOG performance status ≤2, progressive disease after at least one standard therapy (or no standard options), and able to provide a fresh biopsy or a recent frozen tumor sample are ideal candidates.

Probably not a fit

Patients who cannot provide sufficient tumor tissue, have poor performance status (ECOG >2), or whose tumors lack actionable alterations are less likely to benefit from this approach.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This program uses comprehensive tumor profiling — whole-genome/exome sequencing, RNA sequencing and genome-wide DNA methylation — to generate molecularly informed treatment recommendations reviewed by a molecular tumor board. Eligible adults with locally advanced or metastatic rare epithelial or mesenchymal cancers provide a fresh biopsy or recent frozen tumor sample and clinical data. The molecular recommendations are used to guide treatment choices and patient outcomes such as response and disease control are tracked and compared to standard care outcomes. The approach builds on the DKFZ/NCT/DKTK MASTER workflow and aims to expand personalized options for patients who have progressed after at least one standard therapy.

Why it matters

Potential benefit: If successful, this approach could offer more personalized treatment options and improve response and disease control for patients with advanced rare cancers.

How similar studies have gone: Related programs such as the DKFZ/NCT/DKTK MASTER initiative have reported improved outcomes (about 24% overall response rate and 55% disease control rate) with molecularly guided therapies, though randomized comparisons remain limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥ 18years, no upper age limit
* Patients with locally advanced and/or metastatic rare epithelial or mesenchymal cancer (equal numbers of patients) without curative treatment option
* Progressive disease or expected progression of the disease estimated by clinical parameters, suitable biomarkers, and other (e.g. radiographic) methods \* At least one measurable lesion that has been accurately assessed by computed tomography (CT) or magnetic resonance imaging (MRI) at baseline and is amenable to repeat evaluation in MRI/CT images
* Patients must have received at least one standard therapy for advanced disease according to current guidelines or consensus recommendations or have no standard therapy available
* Possibility to perform fresh tumor biopsy according to local SOPs or Availability of fresh frozen tumor samples with sufficient tumor cell content collected within 3 months prior to enrolment
* ECOG PS ≤ 2.
* Ability of patient to understand character and consequences of the clinical trial
* Patient must be willing and able to undergo subsequent treatment (e.g. in a clinical trial) with molecularly guided therapy according to the MTB recommendation
* Availability of complete information about all medical treatment given before study participation, i.e. remission status before start of treatment, dosage and timing of drugs applied, remission status and date of progression after treatment

Exclusion Criteria:

* Dementia or significant cognitive impairment
* Epilepsy requiring pharmacologic treatment
* Prior allogeneic bone marrow or solid organ transplantation
* Hematological malignancies and primary brain tumors.
* Prior comprehensive molecular profiling by WGS, WES, RNA-Seq, or large targeted panels.
* Patients with symptomatic or uncontrolled brain metastases and patients with symptomatic or uncontrolled spinal cord compression. Patients with previously treated brain metastases are eligible, provided that the patient has neither experienced a seizure nor had a clinically significant change in neurological status within the three months prior to enrollment. All patients with previously treated brain metastases must be clinically stable for at least 1 month after completion of treatment and off steroid treatment for one month, both prior to study enrollment.
* Malignancy other than study indication within the last 5 years except: curatively treated non-melanoma skin cancer, curatively treated in situ cancer of the cervix, ductal carcinoma in situ (DCIS), Stage 1, grade 1 endometrial carcinoma, low-risk prostate cancer, or other malignancies curatively treated with no evidence of disease for ≥5 years.
* History of intracranial hemorrhage or spinal cord haemorrhage; no ongoing requirement for dexamethasone for CNS disease; patients on a stable dose of anticonvulsants are permitted
* Known uncontrolled or significant cardiovascular disease, including any of the following:
* History of heart failure NYHA class 3 or 4
* History of uncontrolled angina pectoris, arrhythmias, or myocardial infarction within 12 months prior to screening.
* History of liver cirrhosis
* Neurologic or psychiatric disorder interfering with ability of giving informed consent.
* Known or suspected active alcohol or drug abuse.
* Patients with inability to receive oral medications.
* Failure to provide consent for the registration, storage, and processing of individual disease characteristics and clinical course, as well as for informing the primary care physician about the participant's involvement in the study.

Where it's running

  • Universitätsklinikum Augsburg
    Augsburg, Germany
    Recruiting
  • Charité Berlin
    Berlin, Germany
    Recruiting
  • Universitäts-Klinikum Köln
    Cologne, Germany
    Recruiting
  • Medizinische Fakultät der TU Dresden
    Dresden, Germany
    Recruiting
  • Uniklinikum Erlangen
    Erlangen, Germany
    Recruiting
  • Universitätsmedizin Essen
    Essen, Germany
    Recruiting
Show 10 more locations
  • Universitätsklinikum Heidelberg
    Heidelberg, Germany
    Recruiting
  • Comprehensive Cancer Center Ostbayern (CCCO) Universitätsklinikum Regensburg,
    Regensburg, Germany
    Recruiting
  • Robert Bosch Krankenhaus Stuttgart
    Stuttgart, Germany
    Recruiting
  • Universitätsklinikum Tübingen
    Tübingen, Germany
    Recruiting
  • Universitätsklinikum Ulm
    Ulm, Germany
    Recruiting
  • Universitätsklinium Würzburg
    Würzburg, Germany
    Recruiting
  • Universitätsklinikum Freiburg, Tumorzentrum Freiburg - CCCF
    Freiburg im Breisgau, Germany
    Not yet recruiting
  • Universitätsklinikum Hamburg-Eppendorf (UKE)
    Hamburg, Germany
    Not yet recruiting
  • Universitätsmedizin der Johannes Gutenberg- Universität Mainz
    Mainz, Germany
    Not yet recruiting
  • Comprehensive Cancer Center , LMU München
    München, Germany
    Not yet recruiting

Study contacts

  • Principal investigator: Stefan Fröhling, MD — German Cancer Research Center
  • Study coordinator: Trial Management and Support, NCT Heidelberg Clinical Trial Center
  • Email: rationale_pm@nct-heidelberg.de
  • Phone: 49 6221 566553

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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    This project will test whether sensitive blood and other fluid tests for circulating tumor DNA can find leftover cancer (minimal residual disease) in adults treated with curative intent for breast, lung, melanoma, gynecologic, or genitourinary cancers.

    Recruiting University Health Network, Toronto · Toronto, Ontario · NCT07524114

  • Registry of patients with rare cancers in Korea

    This study is collecting information from patients with rare cancers in Korea to see how they can take part in clinical research and improve future treatments.

    Recruiting Yonsei University · Seoul · NCT06746766

  • Vaccination with Dendritic Cells for Patients with Resected Stage IV Rare Cancers

    This study is testing a new vaccine made from patients' own immune cells to see if it can help people who have had rare stage IV cancers feel better and stay healthy after surgery.

    Recruiting Phase 2 Istituto Romagnolo per lo Studio dei Tumori Dino Amadori IRST S.r.l. IRCCS · Meldola, FC · NCT04166006

  • Investigating genetic reasons for unusual responses to cancer treatment

    This study is trying to find out how genetic differences in cancer patients affect their responses to treatment, so doctors can tailor therapies to work better for each individual.

    Recruiting University Health Network, Toronto · Toronto, Ontario · NCT03740503

  • Collecting tumor samples to improve cancer treatment matching

    This study is collecting tumor samples from patients with advanced cancer to see if analyzing their genes can help doctors find the best treatments for them.

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.