Head and Neck Squamous Cell CarcinomaEarly Phase 1GAMANCT02608736
Chemoprevention of Head and Neck Squamous Cell Carcinoma (HNSCC) With Valproic Acid
A Early Phase 1 study testing Valproic Acid in people with Head and Neck Squamous Cell Carcinoma, run by Barretos Cancer Hospital at 1 site in Brazil.
Trial summary
This study evaluates the addition of valproic acid as a chemopreventive drug in head and neck squamous cell carcinoma (HNSCC) patients that do not have signs of recurrence or residual disease. The participants will be randomized 1:1 (valproic acid : placebo). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Head and Neck Squamous Cell Carcinoma
- What is being tested?
- Valproic Acid
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 42 participants
- Where
- 1 siteBrazil
- Study dates
- Dec 2015to Jul 2017
- Phase
- Early Phase 1
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients that signed the formal consent;
- Previous history of head and neck squamous cell carcinoma with no more than three years of follow-up;
- History of squamous cell carcinoma in the following sub-sites: oral cavity, oropharynx, larynx and hypopharynx;
- Absence of active malignant disease (HNSCC) with at least three months of follow-up (without signs of residual disease, recurrence or second primary invasive tumors);
- Normal liver, hematologic and renal function.
- Eastern Cooperative Oncology Group (ECOG) Performance Status: 0, 1 or 2;
- Smoking history (current smokers or former smokers). Former users were defined as patients who had quit smoking at least one year prior to diagnosis and smoked more than 100 cigarettes in their lifetime.
Who cannot join
- Any active malignancy;
- History of invasive malignancies (other than HNSCC) diagnosed within the last 2 years (controlled non-melanoma skin cancer are an exception);
- History of hepatitis B, hepatitis C, HIV, chronic liver disease or chronic pancreatic disease;
- Any comorbid medical or psychiatric disorder that it is not well controlled;
- Patients under immunosuppression or under systemic corticosteroid therapy to treat any active autoimmune disease;
- Patients that still have documented toxicities greater than grade 1 (CTCEA NCI v4.0) due to the previously treated HNSCC;
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- Patients that are pregnant or breast-feeding;
- Patients that are in routine use of the following medications due to drug interaction: phenytoin, carbamazepine, barbiturates, chlorpromazine, diazepam, clonazepam, lamotrigine, primidone, amitriptyline, nortriptyline, ethosuximide, warfarin, tolbutamide or topiramate;
- Any medical condition or mental disorder that can potentially increase their risk during the trial (e.g. epilepsy, active infection, schizophrenia);
- Patients that are already under valproic acid use due to neurological or psychiatric disorders;
- Patients that are allergic/intolerant to valproic acid;
- Patients with alcoholism history within the past year or that was under alcoholism treatment in the same period;
- Institutionalized patients.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Phase 0 Clinical Trial With Valproic Acid as a Chemopreventive Agent in Patients With Head and Neck Squamous Cell Carcinoma Previously Treated
This study evaluates the addition of valproic acid as a chemopreventive drug in head and neck squamous cell carcinoma (HNSCC) patients that do not have signs of recurrence or residual disease. The participants will be randomized 1:1 (valproic acid : placebo). The primary outcome is to document histone acetylation and DNA methyltransferase expression (DNMT) in saliva collected from participants when comparing valproic acid arm with placebo arm.
Read the detailed description
Chemoprevention is an attractive strategy to reduce the incidence of squamous cell carcinoma of the head and neck, although past trials have not demonstrated its feasibility.
Valproic acid (VA) is a modifier of epigenetic events as it is an histone deacetylase inhibitor and causes DNMT degradation. The histone deacetylase inhibitors (e.g. VA) encompasses a new class of anti-tumor drugs, that can affect multiple pathways related to tumor initiation and progression due to histone and non-histone protein acetylation and DNMT degradation. VA promote histone acetylation when orally administered with a dose of 20-40 mg/kg, per day or 1000/1500 mg, per day.
Initially the authors will study saliva from participants documenting if there is saliva histone acetylation and if a difference in DNMT expression in saliva exists when comparing valproic acid arm to placebo arm (biological validation) after giving placebo or valproic acid for three months.
This will be the initial step of a bigger project. If authors prove that there will be a difference in histone acetylation and/or DNMT expression between groups they will launch a randomized, double blind, placebo control clinical trial (phase 3 clinical trial), to evaluate VA action as a chemopreventive agent in HNSCC patients who usually carries a high chance to develop recurrence (stages III/IV) or second primary malignancies (stages I/II/III/IV).
- Conditions
- Head and Neck Squamous Cell Carcinoma
- Being tested
- Valproic Acid, Placebo
- Keywords
- head and neck squamous cell carcinoma, histone deacetylases, valproic acid, acetylation, chemoprevention, DNA methyltransferase, methylation
- Medical subject headings
- Squamous Cell Carcinoma of Head and Neck
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Valproic AcidDrug
Also called Divalproex, Depakene, Depacon, Depakote
Half of the participants will receive valproic acid orally for three months. Saliva and blood will be sampled in the study entry. The participants will be followed with blood tests every month for three cycles. After the third cycle, saliva and blood will be sampled once more. Finally, histone acetylation and DNMT expression will be studied comparing the samples collected in different timelines and comparing them to saliva collected in placebo arm.
PlaceboDrug
Also called Inert, not active
The other half of the participants will receive placebo for three months. Saliva and blood will be sampled in the study entry. The participants will be followed with blood tests every month for three cycles. After the third cycle, saliva and blood will be sampled once more. Finally, histone acetylation and DNMT expression will be studied comparing the samples collected in different timelines and comparing them to saliva collected in valproic acid arm.
| Study group | Role | What they receive |
|---|---|---|
| Valproic Acid | Experimental | Valproic acid will be orally administered in a total dose of 1500mg per day (500mg, every 8 hours), for three months. Receives: Drug: Valproic Acid |
| Placebo | Placebo comparator | Placebo will be orally administered in a total dose of three capsules per day (every 8 hours), for three months. Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Changes in protein or histone acetylation
Saliva samples will be collected in baseline and three months after study enrolment. Histone acetylation will be quantified (through ELISA method) and compared in the same arm (if there will be a change in histone acetylation when looking at these different timelines) and between arms (if one group will have or will not have more histone acetylation than the other).
Measured: Three months after study enrollment
Secondary outcomes (2)
Incidence of Treatment-Emergent Adverse Events
Evaluation of incidence of treatment-induced adverse events at the beginning of each new cycle (day 1, every 30 days, for a total of six months) using Common Toxicity Criteria for Adverse Effects (CTCAE v.4.0).
Measured: Day 1 of each new cycle up to 3 months (3 months of treatment and 3 months of follow-up), in other words, from day 1 of the first cycle until the date of first documented emergent adverse event, assessed up to 6 months
Change in DNA methyltransferases expression. (DNMT)
Saliva samples will be collected in baseline and three months after study enrolment. DNA methyltransferases expression (through microarray method) will be compared in the same arm (if there will be a change in DNMT expression when looking at these different timelines) and between arms (if one group will have or will not have a different DNMT expression when compared to the other).
Measured: Three months after study enrollment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Nov 2015 (estimated)
- Study startDec 2015
- Primary completionDec 2016
- Study completionJul 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Head and Neck Squamous Cell CarcinomaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Early Phase 1
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 42 participants (actual)
Sponsor and investigators
- Lead sponsor
- Barretos Cancer Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Ricardo Gama, MD, PHD, Principal investigator, Barretos Cancer HospitalAndré Lopes Carvalho, MD, PHD, Study director, Barretos Cancer HospitalLuciano de Souza Viana, MD, PHD, Study chair, Barretos Cancer Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02608736
- Sponsor's protocol ID
- BarretosCH - Head and Neck
- Acronym
- GAMA
- Status last verified
- Sep 2016
- First submitted
- 16 Nov 2015
- Last updated
- 1 Feb 2018
- Results posted
- No
- Data monitoring committee
- Yes
- Individual data sharing
- Yes: As soon as we have results they will be shared.
Publications
Brodie SA, Li G, El-Kommos A, Kang H, Ramalingam SS, Behera M, Gandhi K, Kowalski J, Sica GL, Khuri FR, Vertino PM, Brandes JC. Class I HDACs are mediators of smoke carcinogen-induced stabilization of DNMT1 and serve as promising targets for chemoprevention of lung cancer. Cancer Prev Res (Phila). 2014 Mar;7(3):351-61. doi: 10.1158/1940-6207.CAPR-13-0254. Epub 2014 Jan 17.
PubMed 24441677Gottlicher M, Minucci S, Zhu P, Kramer OH, Schimpf A, Giavara S, Sleeman JP, Lo Coco F, Nervi C, Pelicci PG, Heinzel T. Valproic acid defines a novel class of HDAC inhibitors inducing differentiation of transformed cells. EMBO J. 2001 Dec 17;20(24):6969-78. doi: 10.1093/emboj/20.24.6969.
PubMed 11742974Gan CP, Hamid S, Hor SY, Zain RB, Ismail SM, Wan Mustafa WM, Teo SH, Saunders N, Cheong SC. Valproic acid: growth inhibition of head and neck cancer by induction of terminal differentiation and senescence. Head Neck. 2012 Mar;34(3):344-53. doi: 10.1002/hed.21734. Epub 2011 Mar 24.
PubMed 21438066Chavez-Blanco A, Segura-Pacheco B, Perez-Cardenas E, Taja-Chayeb L, Cetina L, Candelaria M, Cantu D, Gonzalez-Fierro A, Garcia-Lopez P, Zambrano P, Perez-Plasencia C, Cabrera G, Trejo-Becerril C, Angeles E, Duenas-Gonzalez A. Histone acetylation and histone deacetylase activity of magnesium valproate in tumor and peripheral blood of patients with cervical cancer. A phase I study. Mol Cancer. 2005 Jul 7;4(1):22. doi: 10.1186/1476-4598-4-22.
PubMed 16001982Kang H, Gillespie TW, Goodman M, Brodie SA, Brandes M, Ribeiro M, Ramalingam SS, Shin DM, Khuri FR, Brandes JC. Long-term use of valproic acid in US veterans is associated with a reduced risk of smoking-related cases of head and neck cancer. Cancer. 2014 May 1;120(9):1394-400. doi: 10.1002/cncr.28479. Epub 2014 Mar 24.
PubMed 24664792Kuendgen A, Knipp S, Fox F, Strupp C, Hildebrandt B, Steidl C, Germing U, Haas R, Gattermann N. Results of a phase 2 study of valproic acid alone or in combination with all-trans retinoic acid in 75 patients with myelodysplastic syndrome and relapsed or refractory acute myeloid leukemia. Ann Hematol. 2005 Dec;84 Suppl 1:61-6. doi: 10.1007/s00277-005-0026-8.
PubMed 16270213Balbi A, Sottofattori E, Mazzei M, Sannita WG. Study of bioequivalence of magnesium and sodium valproates. J Pharm Biomed Anal. 1991;9(4):317-21. doi: 10.1016/0731-7085(91)80200-s.
PubMed 1911984Erlich RB, Rickwood D, Coman WB, Saunders NA, Guminski A. Valproic acid as a therapeutic agent for head and neck squamous cell carcinomas. Cancer Chemother Pharmacol. 2009 Feb;63(3):381-9. doi: 10.1007/s00280-008-0747-1. Epub 2008 Apr 9.
PubMed 18398612Cameron EE, Bachman KE, Myohanen S, Herman JG, Baylin SB. Synergy of demethylation and histone deacetylase inhibition in the re-expression of genes silenced in cancer. Nat Genet. 1999 Jan;21(1):103-7. doi: 10.1038/5047.
PubMed 9916800Raffoux E, Cras A, Recher C, Boelle PY, de Labarthe A, Turlure P, Marolleau JP, Reman O, Gardin C, Victor M, Maury S, Rousselot P, Malfuson JV, Maarek O, Daniel MT, Fenaux P, Degos L, Chomienne C, Chevret S, Dombret H. Phase 2 clinical trial of 5-azacitidine, valproic acid, and all-trans retinoic acid in patients with high-risk acute myeloid leukemia or myelodysplastic syndrome. Oncotarget. 2010 May;1(1):34-42. doi: 10.18632/oncotarget.106.
PubMed 21293051Kuendgen A, Bug G, Ottmann OG, Haase D, Schanz J, Hildebrandt B, Nachtkamp K, Neukirchen J, Dienst A, Haas R, Germing U, Gattermann N. Treatment of poor-risk myelodysplastic syndromes and acute myeloid leukemia with a combination of 5-azacytidine and valproic acid. Clin Epigenetics. 2011 Aug;2(2):389-99. doi: 10.1007/s13148-011-0031-9. Epub 2011 Apr 8.
PubMed 22704349Issa JP, Garcia-Manero G, Huang X, Cortes J, Ravandi F, Jabbour E, Borthakur G, Brandt M, Pierce S, Kantarjian HM. Results of phase 2 randomized study of low-dose decitabine with or without valproic acid in patients with myelodysplastic syndrome and acute myelogenous leukemia. Cancer. 2015 Feb 15;121(4):556-61. doi: 10.1002/cncr.29085. Epub 2014 Oct 21.
PubMed 25336333Soriano AO, Yang H, Faderl S, Estrov Z, Giles F, Ravandi F, Cortes J, Wierda WG, Ouzounian S, Quezada A, Pierce S, Estey EH, Issa JP, Kantarjian HM, Garcia-Manero G. Safety and clinical activity of the combination of 5-azacytidine, valproic acid, and all-trans retinoic acid in acute myeloid leukemia and myelodysplastic syndrome. Blood. 2007 Oct 1;110(7):2302-8. doi: 10.1182/blood-2007-03-078576. Epub 2007 Jun 27.
PubMed 17596541Sharma S, Kelly TK, Jones PA. Epigenetics in cancer. Carcinogenesis. 2010 Jan;31(1):27-36. doi: 10.1093/carcin/bgp220. Epub 2009 Sep 13.
PubMed 19752007Duenas-Gonzalez A, Candelaria M, Perez-Plascencia C, Perez-Cardenas E, de la Cruz-Hernandez E, Herrera LA. Valproic acid as epigenetic cancer drug: preclinical, clinical and transcriptional effects on solid tumors. Cancer Treat Rev. 2008 May;34(3):206-22. doi: 10.1016/j.ctrv.2007.11.003. Epub 2008 Jan 15.
PubMed 18226465
Study at a glance
From the registry record, last updated by the sponsor on 1 Feb 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase 0 Clinical Trial With Valproic Acid as a Chemopreventive Agent in Patients With Head and Neck Squamous Cell Carcinoma Previously Treated
- ClinicalTrials.gov ID
- NCT02608736
- Acronym / sponsor ID
- GAMA / BarretosCH - Head and Neck
- Conditions
- Head and Neck Squamous Cell Carcinoma
- Keywords
- head and neck squamous cell carcinoma, histone deacetylases, valproic acid, acetylation, chemoprevention, DNA methyltransferase, methylation
- Phase
- Early Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 42 participants (actual)
- Lead sponsor
- Barretos Cancer HospitalUniversity, hospital or other
- Study start
- Dec 2015
- Primary completion
- Dec 2016 (actual)
- Study completion
- Jul 2017 (actual)
- First posted
- 20 Nov 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study evaluates the addition of valproic acid as a chemopreventive drug in head and neck squamous cell carcinoma (HNSCC) patients that do not have signs of recurrence or residual disease. The participants will be randomized 1:1 (valproic acid : placebo). The primary outcome is to document histone acetylation and DNA methyltransferase expression (DNMT) in saliva collected from participants when comparing valproic acid arm with placebo arm.
Detailed description
Chemoprevention is an attractive strategy to reduce the incidence of squamous cell carcinoma of the head and neck, although past trials have not demonstrated its feasibility.
Valproic acid (VA) is a modifier of epigenetic events as it is an histone deacetylase inhibitor and causes DNMT degradation. The histone deacetylase inhibitors (e.g. VA) encompasses a new class of anti-tumor drugs, that can affect multiple pathways related to tumor initiation and progression due to histone and non-histone protein acetylation and DNMT degradation. VA promote histone acetylation when orally administered with a dose of 20-40 mg/kg, per day or 1000/1500 mg, per day.
Initially the authors will study saliva from participants documenting if there is saliva histone acetylation and if a difference in DNMT expression in saliva exists when comparing valproic acid arm to placebo arm (biological validation) after giving placebo or valproic acid for three months.
This will be the initial step of a bigger project. If authors prove that there will be a difference in histone acetylation and/or DNMT expression between groups they will launch a randomized, double blind, placebo control clinical trial (phase 3 clinical trial), to evaluate VA action as a chemopreventive agent in HNSCC patients who usually carries a high chance to develop recurrence (stages III/IV) or second primary malignancies (stages I/II/III/IV).
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Valproic Acid | Experimental | Drug: Valproic AcidValproic acid will be orally administered in a total dose of 1500mg per day (500mg, every 8 hours), for three months. |
| Placebo | Placebo comparator | Drug: PlaceboPlacebo will be orally administered in a total dose of three capsules per day (every 8 hours), for three months. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Patients that signed the formal consent;
- Previous history of head and neck squamous cell carcinoma with no more than three years of follow-up;
- History of squamous cell carcinoma in the following sub-sites: oral cavity, oropharynx, larynx and hypopharynx;
- Absence of active malignant disease (HNSCC) with at least three months of follow-up (without signs of residual disease, recurrence or second primary invasive tumors);
- Normal liver, hematologic and renal function.
Key exclusion criteria (13 listed)
- Any active malignancy;
- History of invasive malignancies (other than HNSCC) diagnosed within the last 2 years (controlled non-melanoma skin cancer are an exception);
- History of hepatitis B, hepatitis C, HIV, chronic liver disease or chronic pancreatic disease;
- Any comorbid medical or psychiatric disorder that it is not well controlled;
- Patients under immunosuppression or under systemic corticosteroid therapy to treat any active autoimmune disease;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Valproic AcidAlso: Divalproex, Depakene, Depacon, DepakoteHalf of the participants will receive valproic acid orally for three months. Saliva and blood will be sampled in the study entry. The participants will be followed with blood tests every month for three cycles. After the third cycle, saliva and blood will be sampled once more. Finally, histone acetylation and DNMT expression will be studied comparing the samples collected in different timelines and comparing them to saliva collected in placebo arm. | Drug | Valproic Acid |
| PlaceboAlso: Inert, not activeThe other half of the participants will receive placebo for three months. Saliva and blood will be sampled in the study entry. The participants will be followed with blood tests every month for three cycles. After the third cycle, saliva and blood will be sampled once more. Finally, histone acetylation and DNMT expression will be studied comparing the samples collected in different timelines and comparing them to saliva collected in valproic acid arm. | Drug | Placebo |
Primary outcome
Changes in protein or histone acetylation
Time frame: Three months after study enrollment
Saliva samples will be collected in baseline and three months after study enrolment. Histone acetylation will be quantified (through ELISA method) and compared in the same arm (if there will be a change in histone acetylation when looking at these different timelines) and between arms (if one group will have or will not have more histone acetylation than the other).
2 secondary outcomes
Incidence of Treatment-Emergent Adverse Events
Time frame: Day 1 of each new cycle up to 3 months (3 months of treatment and 3 months of follow-up), in other words, from day 1 of the first cycle until the date of first documented emergent adverse event, assessed up to 6 months
Change in DNA methyltransferases expression. (DNMT)
Time frame: Three months after study enrollment
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 Feb 2018.
- Background: PubMed 24441677Brodie SA, Li G, El-Kommos A, Kang H, Ramalingam SS, Behera M, Gandhi K, Kowalski J, Sica GL, Khuri FR, Vertino PM, Brandes JC. Class I HDACs are mediators of smoke carcinogen-induced stabilization of DNMT1 and serve as promising targets for chemoprevention of lung cancer. Cancer Prev Res (Phila). 2014 Mar;7(3):351-61. doi: 10.1158/1940-6207.CAPR-13-0254. Epub 2014 Jan 17.
- Background: PubMed 11742974Gottlicher M, Minucci S, Zhu P, Kramer OH, Schimpf A, Giavara S, Sleeman JP, Lo Coco F, Nervi C, Pelicci PG, Heinzel T. Valproic acid defines a novel class of HDAC inhibitors inducing differentiation of transformed cells. EMBO J. 2001 Dec 17;20(24):6969-78. doi: 10.1093/emboj/20.24.6969.
- Background: PubMed 21438066Gan CP, Hamid S, Hor SY, Zain RB, Ismail SM, Wan Mustafa WM, Teo SH, Saunders N, Cheong SC. Valproic acid: growth inhibition of head and neck cancer by induction of terminal differentiation and senescence. Head Neck. 2012 Mar;34(3):344-53. doi: 10.1002/hed.21734. Epub 2011 Mar 24.
- Background: PubMed 16001982Chavez-Blanco A, Segura-Pacheco B, Perez-Cardenas E, Taja-Chayeb L, Cetina L, Candelaria M, Cantu D, Gonzalez-Fierro A, Garcia-Lopez P, Zambrano P, Perez-Plasencia C, Cabrera G, Trejo-Becerril C, Angeles E, Duenas-Gonzalez A. Histone acetylation and histone deacetylase activity of magnesium valproate in tumor and peripheral blood of patients with cervical cancer. A phase I study. Mol Cancer. 2005 Jul 7;4(1):22. doi: 10.1186/1476-4598-4-22.
- Background: PubMed 24664792Kang H, Gillespie TW, Goodman M, Brodie SA, Brandes M, Ribeiro M, Ramalingam SS, Shin DM, Khuri FR, Brandes JC. Long-term use of valproic acid in US veterans is associated with a reduced risk of smoking-related cases of head and neck cancer. Cancer. 2014 May 1;120(9):1394-400. doi: 10.1002/cncr.28479. Epub 2014 Mar 24.
- Background: PubMed 16270213Kuendgen A, Knipp S, Fox F, Strupp C, Hildebrandt B, Steidl C, Germing U, Haas R, Gattermann N. Results of a phase 2 study of valproic acid alone or in combination with all-trans retinoic acid in 75 patients with myelodysplastic syndrome and relapsed or refractory acute myeloid leukemia. Ann Hematol. 2005 Dec;84 Suppl 1:61-6. doi: 10.1007/s00277-005-0026-8.
- Background: PubMed 1911984Balbi A, Sottofattori E, Mazzei M, Sannita WG. Study of bioequivalence of magnesium and sodium valproates. J Pharm Biomed Anal. 1991;9(4):317-21. doi: 10.1016/0731-7085(91)80200-s.
- Background: PubMed 18398612Erlich RB, Rickwood D, Coman WB, Saunders NA, Guminski A. Valproic acid as a therapeutic agent for head and neck squamous cell carcinomas. Cancer Chemother Pharmacol. 2009 Feb;63(3):381-9. doi: 10.1007/s00280-008-0747-1. Epub 2008 Apr 9.
- Background: PubMed 9916800Cameron EE, Bachman KE, Myohanen S, Herman JG, Baylin SB. Synergy of demethylation and histone deacetylase inhibition in the re-expression of genes silenced in cancer. Nat Genet. 1999 Jan;21(1):103-7. doi: 10.1038/5047.
- Background: PubMed 21293051Raffoux E, Cras A, Recher C, Boelle PY, de Labarthe A, Turlure P, Marolleau JP, Reman O, Gardin C, Victor M, Maury S, Rousselot P, Malfuson JV, Maarek O, Daniel MT, Fenaux P, Degos L, Chomienne C, Chevret S, Dombret H. Phase 2 clinical trial of 5-azacitidine, valproic acid, and all-trans retinoic acid in patients with high-risk acute myeloid leukemia or myelodysplastic syndrome. Oncotarget. 2010 May;1(1):34-42. doi: 10.18632/oncotarget.106.
- Background: PubMed 22704349Kuendgen A, Bug G, Ottmann OG, Haase D, Schanz J, Hildebrandt B, Nachtkamp K, Neukirchen J, Dienst A, Haas R, Germing U, Gattermann N. Treatment of poor-risk myelodysplastic syndromes and acute myeloid leukemia with a combination of 5-azacytidine and valproic acid. Clin Epigenetics. 2011 Aug;2(2):389-99. doi: 10.1007/s13148-011-0031-9. Epub 2011 Apr 8.
- Background: PubMed 25336333Issa JP, Garcia-Manero G, Huang X, Cortes J, Ravandi F, Jabbour E, Borthakur G, Brandt M, Pierce S, Kantarjian HM. Results of phase 2 randomized study of low-dose decitabine with or without valproic acid in patients with myelodysplastic syndrome and acute myelogenous leukemia. Cancer. 2015 Feb 15;121(4):556-61. doi: 10.1002/cncr.29085. Epub 2014 Oct 21.
- Individual participant dataSharing planned: Yes. As soon as we have results they will be shared.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ricardo Gama, MD, PHD principal investigator
Barretos Cancer Hospital
André Lopes Carvalho, MD, PHD study director
Barretos Cancer Hospital
Luciano de Souza Viana, MD, PHD study chair
Barretos Cancer Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Early Phase 1 study testing Valproic Acid in people with Head and Neck Squamous Cell Carcinoma, run by Barretos Cancer Hospital at 1 site in Brazil.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 1 Feb 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Changes in protein or histone acetylation (time frame: Three months after study enrollment). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02608736, which also lists 15 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 Feb 2018.