Dose-finding Study of Metformin With Chemoradiation in Locally Advanced Head and Neck Squamous Cell Carcinoma
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ClinicalTrials.gov Identifier: NCT02325401 |
Recruitment Status :
Completed
First Posted : December 25, 2014
Results First Posted : June 11, 2020
Last Update Posted : June 11, 2020
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The purpose of this research study is to test the safety of adding metformin to standard of care. The standard of care treatment will be cisplatin once every 3 weeks for 3 treatments and radiation for 7 weeks.
Metformin is a medication that is currently used to treat diabetes. Increasing amounts of metformin will be given to groups of patients already receiving normal treatment for their cancer to see if metformin causes any good effects by killing your cancer or bad effects (side effects).
Condition or disease | Intervention/treatment | Phase |
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Head and Neck Cancer | Drug: Metformin Drug: Cisplatin Radiation: Radiation Therapy | Phase 1 |
Patients were registered by contacting the University of Cincinnati Clinical Trials Office. Patients must be registered and consent obtained prior to initiation of any protocol therapy.
Treatment was administered on an outpatient basis. Adverse events and potential risks for metformin and cisplatin and radiation were reported.
Patients must have screening labs performed within 2 weeks of start of treatment including a complete blood count, liver function tests, metabolic renal panel including magnesium, vitamin B12 level, lactate, and C-peptide. Renal panel must be verified within 24 hours of cisplatin administration. They must fulfill inclusion criteria.
The recommended starting dose of metformin in diabetic patients is 500mg orally twice a day which can be escalated by 500mg increments weekly as tolerated with the maximum recommended daily dose of 2550mg.
Cisplatin was given either before or after the radiation therapy fraction that is given on the same day. If radiation is held for more than 2 days (for any reason), cisplatin may be held as well until radiation resumes.
The prescribed radiotherapy dose was be 70 Gy in 2 Gy once-daily fraction size (total of 35 fractions).
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 20 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase I Dose-finding Study of Metformin in Combination With Concurrent Cisplatin and Radiation in Patients With Locally Advanced Head and Neck Squamous Cell Carcinoma |
Actual Study Start Date : | May 11, 2015 |
Actual Primary Completion Date : | December 26, 2017 |
Actual Study Completion Date : | February 21, 2020 |

Arm | Intervention/treatment |
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Experimental: Metformin with Chemoradiation
Metformin administered orally daily to start one week prior to Cisplatin and Radiation Therapy. Metformin dose is escalating.
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Drug: Metformin
Escalating doses of 2000mg, 2550 mg and 3000mg. Starting 1 week prior to the initiation of chemoradiation and ending the final day of chemo or radiation.
Other Names:
Drug: Cisplatin Dosed at 100mg/m2 on days 1, 22, and 43
Other Names:
Radiation: Radiation Therapy 70 Gy in 2 Gy once daily fractions of 35 fractions |
- Maximum Tolerated Dose (MTD) of Metformin in Combination With Concurrent Cisplatin and Radiation [ Time Frame: 24 months ]Cohorts of patients received escalating doses of metformin (2000 mg, 2550 mg, or 3000 mg divided into daily doses) with a 7-day to 14-day lead-in prior to CRT based on the modified toxicity probability interval design to allow for possible re-escalation after previous de-escalation and to maximize the ability to identify the maximum tolerated dose (MTD). Patients continued to receive metformin for the duration of CRT as tolerated.
- Number of Participants Experiencing No-Reoccurrence at 36 Months [ Time Frame: 36 months ]Patients were evaulated at 36 months to determine if there was recurrence of disease.
- Number of Participants With Adverse Events [ Time Frame: 36 months ]Adverse event means any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. Adverse event means any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related.Any participants with any adverse event at any grade was included. Adverse events were collected during the on study period of 21 weeks up to three months after the study for a total of 34 weeks.
- Progression Free Survival [ Time Frame: 24 months ]2-year progression free survival
- Overall Survival [ Time Frame: 24 months ]2 year overall survival

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Locally advanced squamous cell cancer of the head and neck, stage III or IV disease (T1-2, N2a-3 or T3-4).
- Measurable disease
- No prior chemotherapy or radiation for head and neck squamous cell cancer
- Life expectancy of greater than 3 months.
- Adequate labs
Exclusion Criteria:
- Known metastatic disease.
- Nasopharyngeal carcinoma
- History of allergic reactions attributed to metformin or other agents used in study.
- Known diagnosis of diabetes requiring insulin for control.
- Administration of metformin within last 4 weeks.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02325401
United States, Ohio | |
University of Cincinnati Cancer Institute | |
Cincinnati, Ohio, United States, 45267 |
Principal Investigator: | Trisha Wise-Draper, MD | University of Cincinnati |
Documents provided by Trisha Wise-Draper, University of Cincinnati:
Responsible Party: | Trisha Wise-Draper, Principal Investigator, University of Cincinnati |
ClinicalTrials.gov Identifier: | NCT02325401 |
Other Study ID Numbers: |
UCCI-HN-14-01 |
First Posted: | December 25, 2014 Key Record Dates |
Results First Posted: | June 11, 2020 |
Last Update Posted: | June 11, 2020 |
Last Verified: | May 2020 |
Carcinoma, Squamous Cell Squamous Cell Carcinoma of Head and Neck Carcinoma Neoplasms, Glandular and Epithelial Neoplasms by Histologic Type Neoplasms Neoplasms, Squamous Cell |
Head and Neck Neoplasms Neoplasms by Site Metformin Cisplatin Antineoplastic Agents Hypoglycemic Agents Physiological Effects of Drugs |