Title

Thymosin Alpha 1, Interferon Alpha, or Both, in Combination With Dacarbazine in Patients With Malignant Melanoma
A Phase II, Multicentre, Open, Randomised, Dose Ranging Study to Investigate the Efficacy of Combination Therapy Containing Dacarbazine (DTIC) Plus Low Dose Interferon Alpha (aIFN) Plus Thymosin a1 Versus Both DTIC Plus Thymosin a1 and DTIC Plus aIFN in Patients With Advanced -Stage Metastatic Malignant Melanoma
  • Phase

    Phase 2
  • Study Type

    Interventional
  • Intervention/Treatment

    dacarbazine thymalfasin interferon alpha-2b ...
  • Study Participants

    488
The purpose of the study is to test safety and efficacy of different doses of thymosin alpha 1 (1.6 mg, 3.2 mg, and 6.4 mg) in combination with dacarbazine and with or without Interferon alpha in treating patients affected by stage IV melanoma.

Primary end-point is Tumor Response evaluated according to Response Evaluation Criteria In Solid Tumors (RECIST). Secondary end-points are Overall Survival and Progression Free Survival.

Ninety-five patients are allocated to each arm to test the hypothesis that P0 <= 0.05 vs the alternative hypothesis that P1 >= 0.15 (alpha = 5%, within-group statistical analysis beta = 95%).
Study Started
Jul 31
2002
Primary Completion
Sep 30
2007
Study Completion
Sep 30
2007
Results Posted
Jun 02
2009
Estimate
Last Update
Jul 09
2009
Estimate

Biological Dacarbazine + Interferon alpha + Thymosin-alpha-1 1.6 mg

Dacarbazine 800 mg/m2 IV on day 1;Interferon alpha 3MIU SC on day 11 and 18; Thymosin-alpha-1 1.6 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

  • Other names: Zadaxin, Thymalfasin, ST1472, Deticene, Roferon

Biological Dacarbazine + Interferon alpha + Thymosin-alpha-1 3.2 mg

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18; Thymosin-alpha-1 3.2 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

  • Other names: Zadaxin, Thymalfasin, ST1472, Deticene, Roferon

Biological Dacarbazine + Interferon alpha + Thymosin-alpha-1 6.4 mg

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18 Thymosin-alpha-1 6.4 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

  • Other names: Zadaxin, Thymalfasin, ST1472, Deticene, Roferon

Biological Dacarbazine + Thymosin-alpha-1 3.2 mg

Dacarbazine 800 mg/m2 IV on day 1; Thymosin-alpha-1 3.2 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

  • Other names: Zadaxin, Thymalfasin, ST1472, Deticene

Drug Dacarbazine + Interferon alpha

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

  • Other names: Deticene, Roferon

Dacarbazine + Interferon alpha + thymosin-alpha-1 1.6 mg Experimental

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18; Thymosin-alpha-1 1.6 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

Dacarbazine + Interferon alpha + Thymosin-alpha-1 3.2 mg Experimental

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18; Thymosin-alpha-1 3.2 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

Dacarbazine + Interferon alpha + Thymosin-alpha-1 6.4 mg Experimental

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18; Thymosin-alpha-1 6.4 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

Dacarbazine + Thymosin-alpha-1 3.2 mg Experimental

Dacarbazine 800 mg/m2 IV on day 1; Thymosin-alpha-1 3.2 mg SC from day 8 to 11 and from day 15 to 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

Dacarbazine + Interferon alpha Active Comparator

Dacarbazine 800 mg/m2 IV on day 1; Interferon alpha 3MIU SC on day 11 and 18 of each 28 day cycle up to 6 cycles or until progression or unacceptable toxicity develops.

Criteria

Inclusion Criteria:

Have read and signed the informed consent form
18 years <=Age<= 75 years
Adequate contraception practice (fertile female patient)
Confirmed diagnosis of metastatic melanoma (stage IV) with unresectable metastases and >= 1 measurable lesion
Adequate renal function as demonstrated by serum creatinine level < 1.5 mg/deciliter (dl)
Absolute Neutrophil Count (ANC) >= 1.5 x 10000000000/L ; platelets >= 100 x 10000000000/Liter (L)
Good performance status: PS <= 1 (ZUBROD-ECOG-WHO scale)
At least 12 week life expectancy

Exclusion Criteria:

Clinical diagnosis of autoimmune disease
Transplant recipient
Pregnancy documented by a urine pregnancy test or lactation
Previous treatment with thymosin alpha 1
Previous treatment with chemotherapy
Presence of Central Nervous System (CNS) metastases
Concomitant or prior history of malignancy other than melanoma
Participation in another investigational trial within 30 days of study entry
Active infectious process that is not of self-limiting nature

Summary

All Events

Event Type Organ System Event Term

Overall Tumor Response

Tumor response is measured according to Response Evaluation Criteria In Solid Tumors (RECIST) computing number of Complete Response plus Partial Response

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 1.6 mg

7.0
participants

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 3.2 mg

10.0
participants

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 6.4 mg

6.0
participants

Dacarbazin + Thymosin-alpha-1 3.2 mg

12.0
participants

Dacarbazin + Interferon Alpha

4.0
participants

Overall Survival

The survival time for each patient is defined as the time between randomization and death. Patients lost to follow-up or still alive at the date of last evaluation have been censored.

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 3.2 mg

8.6
months (Median)
95% Confidence Interval: 6.1 to 11.6

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 6.4 mg

10.3
months (Median)
95% Confidence Interval: 8.2 to 12.7

Dacarbazin + Thymosin-alpha-1 3.2 mg

9.3
months (Median)
95% Confidence Interval: 6.7 to 11.7

Dacarbazin + Interferon Alpha

6.6
months (Median)
95% Confidence Interval: 5.3 to 9.9

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 1.6 mg

9.3
months (Median)
95% Confidence Interval: 8.0 to 11.1

Progression Free Survival

Progression Free Survival is defined as the time from the randomization to progression or death

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 1.6 mg

1.9
months (Median)
95% Confidence Interval: 1.8 to 2.6

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 3.2 mg

1.8
months (Median)
95% Confidence Interval: 1.8 to 2.0

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 6.4 mg

1.8
months (Median)
95% Confidence Interval: 1.8 to 2.6

Dacarbazin + Thymosin-alpha-1 3.2 mg

2.0
months (Median)
95% Confidence Interval: 1.8 to 3.5

Dacarbazin + Interferon Alpha

1.8
months (Median)
95% Confidence Interval: 1.7 to 2.0

Total

488
Participants

Age Continuous

55
years (Mean)
Standard Deviation: 13

Age, Categorical

Region of Enrollment

Sex: Female, Male

Overall Study

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 1.6 mg

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 3.2 mg

Dacarbazin + Interferon Alpha + Thymosin-alpha-1 6.4 mg

Dacarbazin + Thymosin-alpha-1 3.2 mg

Dacarbazin + Interferon Alpha