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Hydrazine Sulfate (PDQ®): Complementary and alternative medicine - Health Professional Information [NCI] - Human / Clinical Studies

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Evaluation of the findings from these Russian clinical series [7,9,10,18] is made difficult by the limited information provided about the patients and their treatment histories. In addition, insufficient information was given about study design and methodology. The absence of control groups; the receipt of prior or concurrent surgery, chemotherapy, and/or radiation therapy by all patients; and the reliance on subjective measures of quality of life are major study weaknesses. Therefore, it is difficult to ascribe any of the positive findings to treatment with hydrazine sulfate. In contrast with the previously described clinical series, three NCI-funded clinical series found no complete responses or partial responses among a total of 79 patients treated with hydrazine sulfate.[2,8,11] In addition, only temporary, minor improvements in appetite, pain, and weight stabilization or gain were reported by the patients in these series. A weakness in these three clinical series was the absence of control groups.

Findings from four placebo-controlled, randomized clinical trials, however, also fail to support the effectiveness of hydrazine sulfate as a cancer treatment in humans.[1,4,5,6,15] In these trials, survival,[1,4,5,6,15] objective tumor response,[1,4,15] and carefully measured quality of life [4,5,6,15] were major endpoints.

One of the trials involved 65 patients with advanced nonsmall cell lung cancer and examined the effects of hydrazine sulfate on survival and nutritional status.[1]. In this trial, patients received either hydrazine sulfate or placebo in addition to a multiple-drug chemotherapy regimen. When all patients were evaluated, no improvement in survival was found with hydrazine sulfate therapy. In addition, no differences were noted in objective tumor response between the hydrazine sulfate group and the placebo group. However, on the basis of caloric intake and the maintenance of serum albumin levels, the nutritional status of the patients in the hydrazine sulfate group was judged better than that of the patients in the placebo group. However, the moderate increases in body weight associated with hydrazine sulfate use did not achieve statistical significance.

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