Clinical trial • Phase II • Oncology|Gastroenterology

Budesonide for Acute radiation proctitis|Prostate cancer

Phase II trial of Budesonide for Acute radiation proctitis|Prostate cancer.

Overview

Trial Therapeutic Area
Oncology|Gastroenterology
Trial Disease
Acute radiation proctitis|Prostate cancer
Trial Stage
Phase II
Drug Modality
Small molecule|Other

Key dates

Initial CTIS Submission Date
25-11-2025
First CTIS Authorization Date
26-02-2026

Trial design

Randomised, budenofalk 4 mg zäpfchen (budesonide) 4 mg rectal suppository, once daily for up to 8 weeks versus placebo suppository (placebo to test) matched schedule-controlled Phase II trial in Austria, Germany.

Randomised
Yes
Comparator
Budenofalk 4 mg Zäpfchen (budesonide) 4 mg rectal suppository, once daily for up to 8 weeks versus placebo suppository (placebo to test) matched schedule
Target Sample Size
160
Trial Duration For Participant
56

Eligibility

Recruits 160 No vulnerable populations selected. Trial enrols adult male patients aged ≥18 years only. Signed informed consent is required (see Section 10.1.3 and ICF documents). Patients with legal incapacity or circumstances rendering them unable to understand the study are excluded..

Vulnerable Population
No vulnerable populations selected. Trial enrols adult male patients aged ≥18 years only. Signed informed consent is required (see Section 10.1.3 and ICF documents). Patients with legal incapacity or circumstances rendering them unable to understand the study are excluded.

Inclusion criteria

  • {"criterion_text":"- Age and Sex: - Male patients (i.e., sex assigned at birth inclusive all gender identities) aged at least 18 years, at the time of signing the informed consent\n- Type of Participant and Disease Characteristics: - Diagnosis of prostate carcinoma (primary or biochemical recurrence); - Patients with Eastern Cooperative Oncology Group (ECOG) performance status ≤2 or Karnofsky performance status 70% (refer to Table 12. Karnofsky performance status); - Local radiotherapy by external beam radiation planned; - Conventional external beam RT with 60-80 Gy complete dose in 20-40 fractions over 4-8 weeks\n- Patients with Eastern Cooperative Oncology Group (ECOG) performance status ≤2 or Karnofsky performance status 70%\n- Local radiotherapy by external beam radiation planned.\n- Conventional external beam RT with 60-80 Gy complete dose in 20-40 fractions over 4-8 weeks.\n- Signed informed consent as described in Section 10.1.3 which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.\n- CTCAE grading for proctitis and diarrhea ≥ grade 1 for at least 3 days.\n- Sufficient compliance in ePRO as assessed during screening period (defined as at least 3 ePRO entries per week)."}

Exclusion criteria

  • {"criterion_text":"- Treatment by brachytherapy\n- Concomitant medication with systemic and/or topical corticosteroids, other immunosuppressants, or medication that affect peristalsis and/or the intestinal mucosa (e.g., antibiotics, loperamide, opioids, laxatives)\n- Participation in another clinical study and having received an IMP within 30 days prior to Visit 0 (Screening visit) or within 5 half-lives of IMP, whichever is longer\n- Crohn’s disease, indeterminate colitis, ischemic colitis, ulcerative colitis, microscopic colitis (i.e., collagenous colitis or lymphocytic colitis)\n- Grade III internal hemorrhoids\n- Perianal dermatitis\n- Significant bacterial, amoebic, fungal, or viral infections of the gut\n- History of any RT in the area of the pelvis and/or the lower abdomen\n- Active colorectal cancer or a history of colorectal cancer\n- Active malignancy other than prostate cancer or treatment with antineoplastic drugs during the last 5 years. Patients with a history of cancer (other than prostate cancer) and at least 5 years of uneventful follow-up and no signs of recurrence may be eligible\n- Phenylketonuria\n- Severe renal impairment (GFR ≤ 29 ml /min /1.73 m2 at Baseline) calculated by CKD EPI 2009\n- Known intolerance/hypersensitivity/resistance to the IMP and excipients or drugs of similar chemical structure or pharmacological profile.\n- Known to be or suspected of being unable to comply with the clinical study protocol (e.g., no permanent address, history of drug abuse, known to be non-compliant, or presenting an unstable psychiatric history).\n- Legal incapacity and/or other circumstances rendering the patient unable to understand the nature, scope and possible impact of the clinical study.\n- Patients in custody by juridical or official order or patients who are institutionalized because of legal or regulatory order.\n- Patient, who is a member of the staff of the study center, staff of the sponsor or clinical research organization, the investigator him-/herself or close relatives of the investigator.\n- Patients with morning serum cortisol serum < 4 µg/dL\n- Active infections, clinically apparent uncontrolled hypertension, diabetes mellitus (including familiar predisposition), active peptic ulcer, osteoporosis, glaucoma, cataract, or other conditions where corticoids may have side effects if careful medical monitoring is not ensured in the opinion of the investigator\n- Immunocompromised patients (e.g., due to human immunodeficiency virus infection) (respective diagnosis in medical history).\n- Diagnosis of chickenpox, herpes zoster, or measles within 3 months prior to Baseline\n- Portal hypertension or liver cirrhosis\n- Abnormal hepatic parameters (ALT, AST or AP > 2.5 x upper limit of normal) or known significant functional disorder of the liver\n- Having received live vaccine(s) within the last 14 days prior to Baseline"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Time to first improvement in CTCAE grading for proctitis is defined as the number of days from Baseline to the first occurrence of a lower CTCAE grading compared to Baseline, sustained for at least three consecutive days","definition_or_measurement_approach":"Time to first improvement in CTCAE grading for proctitis is defined as the number of days from Baseline to the first occurrence of a lower CTCAE grading compared to Baseline, sustained for at least three consecutive days"}

Secondary endpoints

  • {"endpoint_text":"- Percentage of participants with reduction in CTCAE grading for proctitis by one and by two score point(s) from Baseline to Visit 2 and Baseline to Visit 4\n- Time to first improvement in CTCAE grading for diarrhea after Baseline, where improvement is defined as a lower CTCAE grading compared to Baseline for at least three consecutive days\n- Percentage of participants with reduction in CTCAE grading for diarrhea by one and by two score point(s) from Baseline to Visit 2 and Baseline to Visit 4\n- Time to first improvement in CTCAE grading for rectal pain after Baseline, where improvement is defined as a lower CTCAE grading compared to Baseline for at least three consecutive days\n- Percentage of participants with reduction in CTCAE grading for rectal pain by one and by two score point(s) from Baseline to Visit 2 and Baseline to Visit 4\n- Time to first improvement in each CTCAE grading for further terms of the lower GI composite (fecal incontinence, lower GI hemorrhage, GI pain and other GI-disorder), where improvement is defined as a lower CTCAE grading compared to Baseline for at least three consecutive days\n- Percentage of participants with reduction in each CTCAE gradings for further terms of the lower GI composite (fecal incontinence, lower GI hemorrhage, GI pain and other GI-disorder) by one and by two score point(s) from Baseline to Visit 2 and Baseline to Visit 4\n- Course and change from Baseline in the SHS-GI sum score and sub-scores at Visit 2, 4, and 5\n- Course and change from Baseline in the PGI-S at Visit 2, 4, and 5\n- PGI-C at Visit 2 and 4\n- Course and change from Baseline in the EPIC Bowel Domain Score at Visit 2, 4, and 5\n- Therapeutic success at Visit 4, defined as complete relief or marked improvement of symptoms according to the PGA\n- Therapeutic benefit at Visit 4, defined as at least a slight improvement according to the PGA\n- Assessment of efficacy by investigator and participant at Visit 4\n- Percentage of participants who remained symptom-free for at least ten consecutive days at Visit 4\n- Percentage of participants who used rescue medication at Visit 4.\n- Duration of rescue medication use at Visit 4\n- Assessment of tolerability by investigator and participant at Visit 4\n- Average daily bowel movement frequency within the treatment period\n- Percentage of days within the treatment period with pain during bowel movements\n- Percentage of days within the treatment period with mild pain during bowel movements\n- Percentage of days within the treatment period with moderate pain during bowel movements\n- Percentage of days within the treatment period with severe pain during bowel movements\n- Percentage of days within the treatment period with bloody stool\n- Percentage of days within the treatment period with mucous stool\n- Percentage of days within the treatment period with uncontrolled bowel movements\n- Percentage of days within the treatment period during which no pads were used due to uncontrolled bowel movement\n- Percentage of days within the treatment period during which pads were used sometimes due to uncontrolled bowl movement\n- Percentage of days within the treatment period during which pads were used most of the time due to uncontrolled bowl movement\n- Percentage of days within the treatment period during which symptoms interfered with daily life\n- Percentage of days within the treatment period during which symptoms interfered with daily functioning to the extent that self-care was impossible\n- Percentage of days within the treatment period during which medical intervention was required due to symptoms","definition_or_measurement_approach":"See endpoint text for definitions/measurement approaches; where provided the CTCAE-based time-to-improvement endpoints are defined as a lower CTCAE grading compared to Baseline sustained for at least three consecutive days; other endpoints are percentage or change-from-baseline assessments at specified visits (Visit 2, Visit 4, Visit 5) using instruments named (SHS-GI, PGI-S, PGI-C, EPIC Bowel Domain Score, PGA) as specified in the protocol."}

Recruitment

Planned Sample Size
160
Recruitment Window Months
17
Consent Approach
Signed informed consent required from each participant (adult male ≥18). ICF and subject information documents are provided (versions for Austria and Germany are listed: MICF_AT, MICF_DE and other language/versioned ICF documents). No assent or parental consent procedures are applicable as only adults are eligible.

Methods

  • L2_Other subject information and material_Flyer (patient-facing recruitment flyer document listed in CTIS document set)
  • L2_Other subject information and material_PatientCard (patient-facing card listed in CTIS document set)

Geography

Total Number Of Sites
6
Total Number Of Participants
320

Austria

Earliest CTIS Part Ii Submission Date
05-03-2026
Latest Decision Or Authorization Date
22-03-2026
Processing Time Days
17
Number Of Sites
4
Number Of Participants
160

Sites

Site Name
Landeskrankenhaus Salzburg
Department Name
Universitätsklinik für Strahlentherapie- Radioonkologie
Contact Person Name
Thomas Brunner
Contact Person Email
thomas.brunner@medunigraz.at
Site Name
Klinikum Klagenfurt am Wörthersee
Department Name
Institut für Strahlentherapie/Radioonkologie
Contact Person Name
Wolfgang Raunik
Contact Person Email
wolfgang.raunik@kabeg.at
Site Name
Krankenhaus Der Barmherzigen Schwestern Wien Betriebsgesellschaft mbH
Department Name
Abteilung für Radioonkologie und Strahlentherapie
Contact Person Name
Lucas Kocik
Contact Person Email
lucas.kocik@ordensklinikum.at
Site Name
Landeskrankenhaus Salzburg
Department Name
Universitätsklinik für Radiotherapie und Radioonkologie
Contact Person Name
Falk Roeder
Contact Person Email
f.roeder@salk.at

Germany

Earliest CTIS Part Ii Submission Date
06-02-2026
Latest Decision Or Authorization Date
06-03-2026
Processing Time Days
28
Number Of Sites
2
Number Of Participants
160

Sites

Site Name
Universitätsmedizin Göttingen
Department Name
Klinik für Strahlentherapie und Radioonkologie
Contact Person Name
Rami El Shafie
Site Name
Universitätsklinikum Freiburg
Department Name
Klinik für Strahlenheilkunde
Contact Person Name
Simon Spohn

Sponsor

Primary sponsor

Full Name
Dr. Falk Pharma GmbH
Organisation Type
Pharmaceutical company
Country Of Registered Address
Germany

Contract research organisations

Name
Astrum CRO Germany GmbH
Responsibilities
codes:1,10,11,12,2,5,6

Third parties

  • {"country":"Germany","full_name":"NextPharma GmbH","duties_or_roles":"code:14","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"Astrum CRO Germany GmbH","duties_or_roles":"codes:1,10,11,12,2,5,6","organisation_type":"Pharmaceutical company"}
  • {"country":"Germany","full_name":"Labor Dr. Spranger","duties_or_roles":"code:4","organisation_type":"Laboratory/Research/Testing facility"}
  • {"country":"Germany","full_name":"AB Cube Germany GmbH","duties_or_roles":"code:7","organisation_type":"Non-Pharmaceutical company"}

Investigational products

Investigational Product Name
Budenofalk 4 mg Zäpfchen
Active Substance
Budesonide
Modality
Small molecule
Routes Of Administration
Rectal use
Route
Rectal
Authorisation Status
Marketing authorisation present (marketingAuthNumber: 7005602.00.00; euMpNumber: PRD10429656)
Starting Dose
4 mg
Dose Levels
4 mg
Frequency
Once daily
Maximum Dose
4 mg
Investigational Product Name
placebo to test
Modality
Other

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